MachineImpl.cpp@ 23395

Last change on this file since 23395 was 23395, checked in by vboxsync, 16 years ago
Main/Machine: fix error message, very partial whitespace cleanup
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1	/* $Id: MachineImpl.cpp 23395 2009-09-28 17:24:37Z vboxsync $ */
2
3	/** @file
4	* Implementation of IMachine in VBoxSVC.
5	*/
6
7	/*
8	* Copyright (C) 2006-2009 Sun Microsystems, Inc.
9	*
10	* This file is part of VirtualBox Open Source Edition (OSE), as
11	* available from http://www.virtualbox.org. This file is free software;
12	* you can redistribute it and/or modify it under the terms of the GNU
13	* General Public License (GPL) as published by the Free Software
14	* Foundation, in version 2 as it comes in the "COPYING" file of the
15	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17	*
18	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
19	* Clara, CA 95054 USA or visit http://www.sun.com if you need
20	* additional information or have any questions.
21	*/
22
23	/* Make sure all the stdint.h macros are included - must come first! */
24	#ifndef __STDC_LIMIT_MACROS
25	# define __STDC_LIMIT_MACROS
26	#endif
27	#ifndef __STDC_CONSTANT_MACROS
28	# define __STDC_CONSTANT_MACROS
29	#endif
30
31	#ifdef VBOX_WITH_SYS_V_IPC_SESSION_WATCHER
32	# include <errno.h>
33	# include <sys/types.h>
34	# include <sys/stat.h>
35	# include <sys/ipc.h>
36	# include <sys/sem.h>
37	#endif
38
39	#include "VirtualBoxImpl.h"
40	#include "MachineImpl.h"
41	#include "ProgressImpl.h"
42	#include "MediumAttachmentImpl.h"
43	#include "MediumImpl.h"
44	#include "USBControllerImpl.h"
45	#include "HostImpl.h"
46	#include "SharedFolderImpl.h"
47	#include "GuestOSTypeImpl.h"
48	#include "VirtualBoxErrorInfoImpl.h"
49	#include "GuestImpl.h"
50	#include "StorageControllerImpl.h"
51
52	#ifdef VBOX_WITH_USB
53	# include "USBProxyService.h"
54	#endif
55
56	#include "Logging.h"
57	#include "Performance.h"
58
59	#include <stdio.h>
60	#include <stdlib.h>
61
62	#include <iprt/path.h>
63	#include <iprt/dir.h>
64	#include <iprt/asm.h>
65	#include <iprt/process.h>
66	#include <iprt/cpputils.h>
67	#include <iprt/env.h>
68	#include <iprt/string.h>
69
70	#include <VBox/com/array.h>
71
72	#include <VBox/err.h>
73	#include <VBox/param.h>
74	#include <VBox/settings.h>
75
76	#ifdef VBOX_WITH_GUEST_PROPS
77	# include <VBox/HostServices/GuestPropertySvc.h>
78	# include <VBox/com/array.h>
79	#endif
80
81	#include <algorithm>
82
83	#include <typeinfo>
84
85	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
86	#define HOSTSUFF_EXE ".exe"
87	#else /* !RT_OS_WINDOWS */
88	#define HOSTSUFF_EXE ""
89	#endif /* !RT_OS_WINDOWS */
90
91	// defines / prototypes
92	/////////////////////////////////////////////////////////////////////////////
93
94	// globals
95	/////////////////////////////////////////////////////////////////////////////
96
97	/**
98	* Progress callback handler for lengthy operations
99	* (corresponds to the FNRTPROGRESS typedef).
100	*
101	* @param uPercentage Completetion precentage (0-100).
102	* @param pvUser Pointer to the Progress instance.
103	*/
104	static DECLCALLBACK(int) progressCallback(unsigned uPercentage, void *pvUser)
105	{
106	Progress progress = static_cast<Progress>(pvUser);
107
108	/* update the progress object */
109	if (progress)
110	progress->SetCurrentOperationProgress(uPercentage);
111
112	return VINF_SUCCESS;
113	}
114
115	/////////////////////////////////////////////////////////////////////////////
116	// Machine::Data structure
117	/////////////////////////////////////////////////////////////////////////////
118
119	Machine::Data::Data()
120	{
121	mRegistered = FALSE;
122	mAccessible = FALSE;
123	/* mUuid is initialized in Machine::init() */
124
125	mMachineState = MachineState_PoweredOff;
126	RTTimeNow(&mLastStateChange);
127
128	mMachineStateDeps = 0;
129	mMachineStateDepsSem = NIL_RTSEMEVENTMULTI;
130	mMachineStateChangePending = 0;
131
132	mCurrentStateModified = TRUE;
133	mHandleCfgFile = NIL_RTFILE;
134
135	mSession.mPid = NIL_RTPROCESS;
136	mSession.mState = SessionState_Closed;
137	}
138
139	Machine::Data::~Data()
140	{
141	if (mMachineStateDepsSem != NIL_RTSEMEVENTMULTI)
142	{
143	RTSemEventMultiDestroy(mMachineStateDepsSem);
144	mMachineStateDepsSem = NIL_RTSEMEVENTMULTI;
145	}
146	}
147
148	/////////////////////////////////////////////////////////////////////////////
149	// Machine::UserData structure
150	/////////////////////////////////////////////////////////////////////////////
151
152	Machine::UserData::UserData()
153	{
154	/* default values for a newly created machine */
155
156	mNameSync = TRUE;
157
158	/* mName, mOSTypeId, mSnapshotFolder, mSnapshotFolderFull are initialized in
159	* Machine::init() */
160	}
161
162	Machine::UserData::~UserData()
163	{
164	}
165
166	/////////////////////////////////////////////////////////////////////////////
167	// Machine::HWData structure
168	/////////////////////////////////////////////////////////////////////////////
169
170	Machine::HWData::HWData()
171	{
172	/* default values for a newly created machine */
173	mHWVersion = "2"; /** @todo get the default from the schema if that is possible. */
174	mMemorySize = 128;
175	mCPUCount = 1;
176	mMemoryBalloonSize = 0;
177	mStatisticsUpdateInterval = 0;
178	mVRAMSize = 8;
179	mAccelerate3DEnabled = false;
180	mAccelerate2DVideoEnabled = false;
181	mMonitorCount = 1;
182	mHWVirtExEnabled = true;
183	mHWVirtExNestedPagingEnabled = false;
184	mHWVirtExVPIDEnabled = false;
185	mPAEEnabled = false;
186	mPropertyServiceActive = false;
187
188	/* default boot order: floppy - DVD - HDD */
189	mBootOrder [0] = DeviceType_Floppy;
190	mBootOrder [1] = DeviceType_DVD;
191	mBootOrder [2] = DeviceType_HardDisk;
192	for (size_t i = 3; i < RT_ELEMENTS (mBootOrder); ++i)
193	mBootOrder [i] = DeviceType_Null;
194
195	mClipboardMode = ClipboardMode_Bidirectional;
196	mGuestPropertyNotificationPatterns = "";
197
198	mFirmwareType = FirmwareType_BIOS;
199	}
200
201	Machine::HWData::~HWData()
202	{
203	}
204
205	bool Machine::HWData::operator==(const HWData &that) const
206	{
207	if (this == &that)
208	return true;
209
210	if (mHWVersion != that.mHWVersion \|\|
211	mMemorySize != that.mMemorySize \|\|
212	mMemoryBalloonSize != that.mMemoryBalloonSize \|\|
213	mStatisticsUpdateInterval != that.mStatisticsUpdateInterval \|\|
214	mVRAMSize != that.mVRAMSize \|\|
215	mFirmwareType != that.mFirmwareType \|\|
216	mAccelerate3DEnabled != that.mAccelerate3DEnabled \|\|
217	mAccelerate2DVideoEnabled != that.mAccelerate2DVideoEnabled \|\|
218	mMonitorCount != that.mMonitorCount \|\|
219	mHWVirtExEnabled != that.mHWVirtExEnabled \|\|
220	mHWVirtExNestedPagingEnabled != that.mHWVirtExNestedPagingEnabled \|\|
221	mHWVirtExVPIDEnabled != that.mHWVirtExVPIDEnabled \|\|
222	mPAEEnabled != that.mPAEEnabled \|\|
223	mCPUCount != that.mCPUCount \|\|
224	mClipboardMode != that.mClipboardMode)
225	return false;
226
227	for (size_t i = 0; i < RT_ELEMENTS (mBootOrder); ++i)
228	if (mBootOrder [i] != that.mBootOrder [i])
229	return false;
230
231	if (mSharedFolders.size() != that.mSharedFolders.size())
232	return false;
233
234	if (mSharedFolders.size() == 0)
235	return true;
236
237	/* Make copies to speed up comparison */
238	SharedFolderList folders = mSharedFolders;
239	SharedFolderList thatFolders = that.mSharedFolders;
240
241	SharedFolderList::iterator it = folders.begin();
242	while (it != folders.end())
243	{
244	bool found = false;
245	SharedFolderList::iterator thatIt = thatFolders.begin();
246	while (thatIt != thatFolders.end())
247	{
248	if ( (it)->name() == (thatIt)->name()
249	&& RTPathCompare(Utf8Str((*it)->hostPath()).c_str(),
250	Utf8Str((*thatIt)->hostPath()).c_str()
251	) == 0)
252	{
253	thatFolders.erase (thatIt);
254	found = true;
255	break;
256	}
257	else
258	++thatIt;
259	}
260	if (found)
261	it = folders.erase (it);
262	else
263	return false;
264	}
265
266	Assert (folders.size() == 0 && thatFolders.size() == 0);
267
268	return true;
269	}
270
271	/////////////////////////////////////////////////////////////////////////////
272	// Machine::HDData structure
273	/////////////////////////////////////////////////////////////////////////////
274
275	Machine::MediaData::MediaData()
276	{
277	}
278
279	Machine::MediaData::~MediaData()
280	{
281	}
282
283	bool Machine::MediaData::operator== (const MediaData &that) const
284	{
285	if (this == &that)
286	return true;
287
288	if (mAttachments.size() != that.mAttachments.size())
289	return false;
290
291	if (mAttachments.size() == 0)
292	return true;
293
294	/* Make copies to speed up comparison */
295	AttachmentList atts = mAttachments;
296	AttachmentList thatAtts = that.mAttachments;
297
298	AttachmentList::iterator it = atts.begin();
299	while (it != atts.end())
300	{
301	bool found = false;
302	AttachmentList::iterator thatIt = thatAtts.begin();
303	while (thatIt != thatAtts.end())
304	{
305	if ((it)->controller() == (thatIt)->controller() &&
306	(it)->port() == (thatIt)->port() &&
307	(it)->device() == (thatIt)->device() &&
308	(it)->passthrough() == (thatIt)->passthrough() &&
309	(it)->medium().equalsTo ((thatIt)->medium()))
310	{
311	thatAtts.erase (thatIt);
312	found = true;
313	break;
314	}
315	else
316	++thatIt;
317	}
318	if (found)
319	it = atts.erase (it);
320	else
321	return false;
322	}
323
324	Assert (atts.size() == 0 && thatAtts.size() == 0);
325
326	return true;
327	}
328
329	/////////////////////////////////////////////////////////////////////////////
330	// Machine class
331	/////////////////////////////////////////////////////////////////////////////
332
333	// constructor / destructor
334	/////////////////////////////////////////////////////////////////////////////
335
336	Machine::Machine() : mType (IsMachine) {}
337
338	Machine::~Machine() {}
339
340	HRESULT Machine::FinalConstruct()
341	{
342	LogFlowThisFunc(("\n"));
343	return S_OK;
344	}
345
346	void Machine::FinalRelease()
347	{
348	LogFlowThisFunc(("\n"));
349	uninit();
350	}
351
352	/**
353	* Initializes the instance.
354	*
355	* @param aParent Associated parent object
356	* @param aConfigFile Local file system path to the VM settings file (can
357	* be relative to the VirtualBox config directory).
358	* @param aMode Init_New, Init_Existing or Init_Registered
359	* @param aName name for the machine when aMode is Init_New
360	* (ignored otherwise)
361	* @param aOsType OS Type of this machine
362	* @param aNameSync \|TRUE\| to automatically sync settings dir and file
363	* name with the machine name. \|FALSE\| is used for legacy
364	* machines where the file name is specified by the
365	* user and should never change. Used only in Init_New
366	* mode (ignored otherwise).
367	* @param aId UUID of the machine. Required for aMode==Init_Registered
368	* and optional for aMode==Init_New. Used for consistency
369	* check when aMode is Init_Registered; must match UUID
370	* stored in the settings file. Used for predefining the
371	* UUID of a VM when aMode is Init_New.
372	*
373	* @return Success indicator. if not S_OK, the machine object is invalid
374	*/
375	HRESULT Machine::init(VirtualBox *aParent,
376	const Utf8Str &strConfigFile,
377	InitMode aMode,
378	CBSTR aName /* = NULL */,
379	GuestOSType aOsType / = NULL */,
380	BOOL aNameSync /* = TRUE */,
381	const Guid aId / = NULL */)
382	{
383	LogFlowThisFuncEnter();
384	LogFlowThisFunc (("aConfigFile='%s', aMode=%d\n", strConfigFile.raw(), aMode));
385
386	AssertReturn (aParent, E_INVALIDARG);
387	AssertReturn (!strConfigFile.isEmpty(), E_INVALIDARG);
388	AssertReturn(aMode != Init_New \|\| (aName != NULL && *aName != '\0'),
389	E_INVALIDARG);
390	AssertReturn(aMode != Init_Registered \|\| aId != NULL, E_FAIL);
391
392	/* Enclose the state transition NotReady->InInit->Ready */
393	AutoInitSpan autoInitSpan(this);
394	AssertReturn(autoInitSpan.isOk(), E_FAIL);
395
396	HRESULT rc = S_OK;
397
398	/* share the parent weakly */
399	unconst(mParent) = aParent;
400
401	/* register with parent early, since uninit() will unconditionally
402	* unregister on failure */
403	mParent->addDependentChild (this);
404
405	/* allocate the essential machine data structure (the rest will be
406	* allocated later by initDataAndChildObjects() */
407	mData.allocate();
408
409	mData->m_pMachineConfigFile = NULL;
410
411	/* memorize the config file name (as provided) */
412	mData->m_strConfigFile = strConfigFile;
413
414	/* get the full file name */
415	int vrc = mParent->calculateFullPath(strConfigFile, mData->m_strConfigFileFull);
416	if (RT_FAILURE(vrc))
417	return setError(VBOX_E_FILE_ERROR,
418	tr("Invalid machine settings file name '%s' (%Rrc)"),
419	strConfigFile.raw(),
420	vrc);
421
422	if (aMode == Init_Registered)
423	{
424	mData->mRegistered = TRUE;
425
426	/* store the supplied UUID (will be used to check for UUID consistency
427	* in loadSettings() */
428	unconst(mData->mUuid) = *aId;
429
430	// now load the settings from XML:
431	rc = registeredInit();
432	}
433	else
434	{
435	if (aMode == Init_Import)
436	{
437	// we're reading the settings file below
438	}
439	else if (aMode == Init_New)
440	{
441	/* check for the file existence */
442	RTFILE f = NIL_RTFILE;
443	int vrc = RTFileOpen(&f, mData->m_strConfigFileFull.c_str(), RTFILE_O_READ);
444	if ( RT_SUCCESS(vrc)
445	\|\| vrc == VERR_SHARING_VIOLATION
446	)
447	{
448	rc = setError(VBOX_E_FILE_ERROR,
449	tr("Machine settings file '%s' already exists"),
450	mData->m_strConfigFileFull.raw());
451	if (RT_SUCCESS(vrc))
452	RTFileClose(f);
453	}
454	else
455	{
456	if ( vrc != VERR_FILE_NOT_FOUND
457	&& vrc != VERR_PATH_NOT_FOUND
458	)
459	rc = setError(VBOX_E_FILE_ERROR,
460	tr("Invalid machine settings file name '%s' (%Rrc)"),
461	mData->m_strConfigFileFull.raw(),
462	vrc);
463	}
464
465	// create an empty machine config
466	mData->m_pMachineConfigFile = new settings::MachineConfigFile(NULL);
467	}
468	else
469	AssertFailed();
470
471	if (SUCCEEDED(rc))
472	rc = initDataAndChildObjects();
473
474	if (SUCCEEDED(rc))
475	{
476	/* set to true now to cause uninit() to call
477	* uninitDataAndChildObjects() on failure */
478	mData->mAccessible = TRUE;
479
480	if (aMode != Init_New)
481	{
482	rc = loadSettings(false /* aRegistered */);
483	}
484	else
485	{
486	/* create the machine UUID */
487	if (aId)
488	unconst(mData->mUuid) = *aId;
489	else
490	unconst(mData->mUuid).create();
491
492	/* memorize the provided new machine's name */
493	mUserData->mName = aName;
494	mUserData->mNameSync = aNameSync;
495
496	/* initialize the default snapshots folder
497	* (note: depends on the name value set above!) */
498	rc = COMSETTER(SnapshotFolder)(NULL);
499	AssertComRC(rc);
500
501	if (aOsType)
502	{
503	/* Store OS type */
504	mUserData->mOSTypeId = aOsType->id();
505
506	/* Apply BIOS defaults */
507	mBIOSSettings->applyDefaults (aOsType);
508
509	/* Apply network adapters defaults */
510	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); ++slot)
511	mNetworkAdapters [slot]->applyDefaults (aOsType);
512
513	/* Apply serial port defaults */
514	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); ++slot)
515	mSerialPorts [slot]->applyDefaults (aOsType);
516	}
517
518	/* The default is that the VM has at least one IDE controller. */
519	/** @todo does this forced IDE controller make sense any more? */
520	ComPtr<IStorageController> pController;
521	rc = AddStorageController(Bstr("IDE Controller"), StorageBus_IDE, pController.asOutParam());
522	CheckComRCReturnRC(rc);
523	ComObjPtr<StorageController> ctl;
524	rc = getStorageControllerByName(Bstr("IDE Controller"), ctl, true);
525	CheckComRCReturnRC(rc);
526	ctl->COMSETTER(ControllerType)(StorageControllerType_PIIX4);
527	}
528
529	/* commit all changes made during the initialization */
530	if (SUCCEEDED(rc))
531	commit();
532	}
533	}
534
535	/* Confirm a successful initialization when it's the case */
536	if (SUCCEEDED(rc))
537	{
538	if (mData->mAccessible)
539	autoInitSpan.setSucceeded();
540	else
541	autoInitSpan.setLimited();
542	}
543
544	LogFlowThisFunc(("mName='%ls', mRegistered=%RTbool, mAccessible=%RTbool "
545	"rc=%08X\n",
546	!!mUserData ? mUserData->mName.raw() : NULL,
547	mData->mRegistered, mData->mAccessible, rc));
548
549	LogFlowThisFuncLeave();
550
551	return rc;
552	}
553
554	/**
555	* Initializes the registered machine by loading the settings file.
556	* This method is separated from #init() in order to make it possible to
557	* retry the operation after VirtualBox startup instead of refusing to
558	* startup the whole VirtualBox server in case if the settings file of some
559	* registered VM is invalid or inaccessible.
560	*
561	* @note Must be always called from this object's write lock
562	* (unless called from #init() that doesn't need any locking).
563	* @note Locks the mUSBController method for writing.
564	* @note Subclasses must not call this method.
565	*/
566	HRESULT Machine::registeredInit()
567	{
568	AssertReturn(mType == IsMachine, E_FAIL);
569	AssertReturn(!mData->mUuid.isEmpty(), E_FAIL);
570	AssertReturn(!mData->mAccessible, E_FAIL);
571
572	HRESULT rc = initDataAndChildObjects();
573
574	if (SUCCEEDED(rc))
575	{
576	/* Temporarily reset the registered flag in order to let setters
577	* potentially called from loadSettings() succeed (isMutable() used in
578	* all setters will return FALSE for a Machine instance if mRegistered
579	* is TRUE). */
580	mData->mRegistered = FALSE;
581
582	rc = loadSettings(true /* aRegistered */);
583
584	/* Restore the registered flag (even on failure) */
585	mData->mRegistered = TRUE;
586	}
587
588	if (SUCCEEDED(rc))
589	{
590	/* Set mAccessible to TRUE only if we successfully locked and loaded
591	* the settings file */
592	mData->mAccessible = TRUE;
593
594	/* commit all changes made during loading the settings file */
595	commit();
596	}
597	else
598	{
599	/* If the machine is registered, then, instead of returning a
600	* failure, we mark it as inaccessible and set the result to
601	* success to give it a try later */
602
603	/* fetch the current error info */
604	mData->mAccessError = com::ErrorInfo();
605	LogWarning(("Machine {%RTuuid} is inaccessible! [%ls]\n",
606	mData->mUuid.raw(),
607	mData->mAccessError.getText().raw()));
608
609	/* rollback all changes */
610	rollback (false /* aNotify */);
611
612	/* uninitialize the common part to make sure all data is reset to
613	* default (null) values */
614	uninitDataAndChildObjects();
615
616	rc = S_OK;
617	}
618
619	return rc;
620	}
621
622	/**
623	* Uninitializes the instance.
624	* Called either from FinalRelease() or by the parent when it gets destroyed.
625	*
626	* @note The caller of this method must make sure that this object
627	* a) doesn't have active callers on the current thread and b) is not locked
628	* by the current thread; otherwise uninit() will hang either a) due to
629	* AutoUninitSpan waiting for a number of calls to drop to zero or b) due to
630	* a dead-lock caused by this thread waiting for all callers on the other
631	* threads are done but preventing them from doing so by holding a lock.
632	*/
633	void Machine::uninit()
634	{
635	LogFlowThisFuncEnter();
636
637	Assert (!isWriteLockOnCurrentThread());
638
639	/* Enclose the state transition Ready->InUninit->NotReady */
640	AutoUninitSpan autoUninitSpan(this);
641	if (autoUninitSpan.uninitDone())
642	return;
643
644	Assert (mType == IsMachine);
645	Assert (!!mData);
646
647	LogFlowThisFunc(("initFailed()=%d\n", autoUninitSpan.initFailed()));
648	LogFlowThisFunc(("mRegistered=%d\n", mData->mRegistered));
649
650	/* Enter this object lock because there may be a SessionMachine instance
651	* somewhere around, that shares our data and lock but doesn't use our
652	* addCaller()/removeCaller(), and it may be also accessing the same data
653	* members. mParent lock is necessary as well because of
654	* SessionMachine::uninit(), etc.
655	*/
656	AutoMultiWriteLock2 alock (mParent, this);
657
658	if (!mData->mSession.mMachine.isNull())
659	{
660	/* Theoretically, this can only happen if the VirtualBox server has been
661	* terminated while there were clients running that owned open direct
662	* sessions. Since in this case we are definitely called by
663	* VirtualBox::uninit(), we may be sure that SessionMachine::uninit()
664	* won't happen on the client watcher thread (because it does
665	* VirtualBox::addCaller() for the duration of the
666	* SessionMachine::checkForDeath() call, so that VirtualBox::uninit()
667	* cannot happen until the VirtualBox caller is released). This is
668	* important, because SessionMachine::uninit() cannot correctly operate
669	* after we return from this method (it expects the Machine instance is
670	* still valid). We'll call it ourselves below.
671	*/
672	LogWarningThisFunc(("Session machine is not NULL (%p), "
673	"the direct session is still open!\n",
674	(SessionMachine *) mData->mSession.mMachine));
675
676	if (Global::IsOnlineOrTransient (mData->mMachineState))
677	{
678	LogWarningThisFunc(("Setting state to Aborted!\n"));
679	/* set machine state using SessionMachine reimplementation */
680	static_cast <Machine *> (mData->mSession.mMachine)
681	->setMachineState (MachineState_Aborted);
682	}
683
684	/*
685	* Uninitialize SessionMachine using public uninit() to indicate
686	* an unexpected uninitialization.
687	*/
688	mData->mSession.mMachine->uninit();
689	/* SessionMachine::uninit() must set mSession.mMachine to null */
690	Assert (mData->mSession.mMachine.isNull());
691	}
692
693	/* the lock is no more necessary (SessionMachine is uninitialized) */
694	alock.leave();
695
696	if (isModified())
697	{
698	LogWarningThisFunc(("Discarding unsaved settings changes!\n"));
699	rollback (false /* aNotify */);
700	}
701
702	if (mData->mAccessible)
703	uninitDataAndChildObjects();
704
705	/* free the essential data structure last */
706	mData.free();
707
708	mParent->removeDependentChild (this);
709
710	LogFlowThisFuncLeave();
711	}
712
713	// IMachine properties
714	/////////////////////////////////////////////////////////////////////////////
715
716	STDMETHODIMP Machine::COMGETTER(Parent) (IVirtualBox **aParent)
717	{
718	CheckComArgOutPointerValid(aParent);
719
720	AutoLimitedCaller autoCaller(this);
721	CheckComRCReturnRC(autoCaller.rc());
722
723	/* mParent is constant during life time, no need to lock */
724	mParent.queryInterfaceTo(aParent);
725
726	return S_OK;
727	}
728
729	STDMETHODIMP Machine::COMGETTER(Accessible) (BOOL *aAccessible)
730	{
731	CheckComArgOutPointerValid(aAccessible);
732
733	AutoLimitedCaller autoCaller(this);
734	CheckComRCReturnRC(autoCaller.rc());
735
736	AutoWriteLock alock(this);
737
738	HRESULT rc = S_OK;
739
740	if (!mData->mAccessible)
741	{
742	/* try to initialize the VM once more if not accessible */
743
744	AutoReinitSpan autoReinitSpan(this);
745	AssertReturn(autoReinitSpan.isOk(), E_FAIL);
746
747	if (mData->m_pMachineConfigFile)
748	{
749	// @todo why are we parsing this several times?
750	// this is hugely inefficient
751	delete mData->m_pMachineConfigFile;
752	mData->m_pMachineConfigFile = NULL;
753	}
754
755	rc = registeredInit();
756
757	if (SUCCEEDED(rc) && mData->mAccessible)
758	{
759	autoReinitSpan.setSucceeded();
760
761	/* make sure interesting parties will notice the accessibility
762	* state change */
763	mParent->onMachineStateChange(mData->mUuid, mData->mMachineState);
764	mParent->onMachineDataChange(mData->mUuid);
765	}
766	}
767
768	if (SUCCEEDED(rc))
769	*aAccessible = mData->mAccessible;
770
771	return rc;
772	}
773
774	STDMETHODIMP Machine::COMGETTER(AccessError) (IVirtualBoxErrorInfo **aAccessError)
775	{
776	CheckComArgOutPointerValid(aAccessError);
777
778	AutoLimitedCaller autoCaller(this);
779	CheckComRCReturnRC(autoCaller.rc());
780
781	AutoReadLock alock(this);
782
783	if (mData->mAccessible \|\| !mData->mAccessError.isBasicAvailable())
784	{
785	/* return shortly */
786	aAccessError = NULL;
787	return S_OK;
788	}
789
790	HRESULT rc = S_OK;
791
792	ComObjPtr<VirtualBoxErrorInfo> errorInfo;
793	rc = errorInfo.createObject();
794	if (SUCCEEDED(rc))
795	{
796	errorInfo->init (mData->mAccessError.getResultCode(),
797	mData->mAccessError.getInterfaceID(),
798	mData->mAccessError.getComponent(),
799	mData->mAccessError.getText());
800	rc = errorInfo.queryInterfaceTo(aAccessError);
801	}
802
803	return rc;
804	}
805
806	STDMETHODIMP Machine::COMGETTER(Name) (BSTR *aName)
807	{
808	CheckComArgOutPointerValid(aName);
809
810	AutoCaller autoCaller(this);
811	CheckComRCReturnRC(autoCaller.rc());
812
813	AutoReadLock alock(this);
814
815	mUserData->mName.cloneTo(aName);
816
817	return S_OK;
818	}
819
820	STDMETHODIMP Machine::COMSETTER(Name) (IN_BSTR aName)
821	{
822	CheckComArgNotNull (aName);
823
824	if (!*aName)
825	return setError(E_INVALIDARG,
826	tr("Machine name cannot be empty"));
827
828	AutoCaller autoCaller(this);
829	CheckComRCReturnRC(autoCaller.rc());
830
831	AutoWriteLock alock(this);
832
833	HRESULT rc = checkStateDependency(MutableStateDep);
834	CheckComRCReturnRC(rc);
835
836	mUserData.backup();
837	mUserData->mName = aName;
838
839	return S_OK;
840	}
841
842	STDMETHODIMP Machine::COMGETTER(Description) (BSTR *aDescription)
843	{
844	CheckComArgOutPointerValid(aDescription);
845
846	AutoCaller autoCaller(this);
847	CheckComRCReturnRC(autoCaller.rc());
848
849	AutoReadLock alock(this);
850
851	mUserData->mDescription.cloneTo(aDescription);
852
853	return S_OK;
854	}
855
856	STDMETHODIMP Machine::COMSETTER(Description) (IN_BSTR aDescription)
857	{
858	AutoCaller autoCaller(this);
859	CheckComRCReturnRC(autoCaller.rc());
860
861	AutoWriteLock alock(this);
862
863	HRESULT rc = checkStateDependency(MutableStateDep);
864	CheckComRCReturnRC(rc);
865
866	mUserData.backup();
867	mUserData->mDescription = aDescription;
868
869	return S_OK;
870	}
871
872	STDMETHODIMP Machine::COMGETTER(Id) (BSTR *aId)
873	{
874	CheckComArgOutPointerValid(aId);
875
876	AutoLimitedCaller autoCaller(this);
877	CheckComRCReturnRC(autoCaller.rc());
878
879	AutoReadLock alock(this);
880
881	mData->mUuid.toUtf16().cloneTo(aId);
882
883	return S_OK;
884	}
885
886	STDMETHODIMP Machine::COMGETTER(OSTypeId) (BSTR *aOSTypeId)
887	{
888	CheckComArgOutPointerValid(aOSTypeId);
889
890	AutoCaller autoCaller(this);
891	CheckComRCReturnRC(autoCaller.rc());
892
893	AutoReadLock alock(this);
894
895	mUserData->mOSTypeId.cloneTo(aOSTypeId);
896
897	return S_OK;
898	}
899
900	STDMETHODIMP Machine::COMSETTER(OSTypeId) (IN_BSTR aOSTypeId)
901	{
902	CheckComArgNotNull (aOSTypeId);
903
904	AutoCaller autoCaller(this);
905	CheckComRCReturnRC(autoCaller.rc());
906
907	/* look up the object by Id to check it is valid */
908	ComPtr<IGuestOSType> guestOSType;
909	HRESULT rc = mParent->GetGuestOSType (aOSTypeId,
910	guestOSType.asOutParam());
911	CheckComRCReturnRC(rc);
912
913	/* when setting, always use the "etalon" value for consistency -- lookup
914	* by ID is case-insensitive and the input value may have different case */
915	Bstr osTypeId;
916	rc = guestOSType->COMGETTER(Id) (osTypeId.asOutParam());
917	CheckComRCReturnRC(rc);
918
919	AutoWriteLock alock(this);
920
921	rc = checkStateDependency(MutableStateDep);
922	CheckComRCReturnRC(rc);
923
924	mUserData.backup();
925	mUserData->mOSTypeId = osTypeId;
926
927	return S_OK;
928	}
929
930
931	STDMETHODIMP Machine::COMGETTER(FirmwareType) (FirmwareType_T *aFirmwareType)
932	{
933	CheckComArgOutPointerValid(aFirmwareType);
934
935	AutoCaller autoCaller(this);
936	CheckComRCReturnRC(autoCaller.rc());
937
938	AutoReadLock alock(this);
939
940	*aFirmwareType = mHWData->mFirmwareType;
941
942	return S_OK;
943	}
944
945	STDMETHODIMP Machine::COMSETTER(FirmwareType) (FirmwareType_T aFirmwareType)
946	{
947	AutoCaller autoCaller(this);
948	CheckComRCReturnRC(autoCaller.rc());
949	AutoWriteLock alock(this);
950
951	int rc = checkStateDependency(MutableStateDep);
952	CheckComRCReturnRC(rc);
953
954	mHWData.backup();
955	mHWData->mFirmwareType = aFirmwareType;
956
957	return S_OK;
958	}
959
960	STDMETHODIMP Machine::COMGETTER(HardwareVersion) (BSTR *aHWVersion)
961	{
962	if (!aHWVersion)
963	return E_POINTER;
964
965	AutoCaller autoCaller(this);
966	CheckComRCReturnRC(autoCaller.rc());
967
968	AutoReadLock alock(this);
969
970	mHWData->mHWVersion.cloneTo(aHWVersion);
971
972	return S_OK;
973	}
974
975	STDMETHODIMP Machine::COMSETTER(HardwareVersion) (IN_BSTR aHWVersion)
976	{
977	/* check known version */
978	Utf8Str hwVersion = aHWVersion;
979	if ( hwVersion.compare ("1") != 0
980	&& hwVersion.compare ("2") != 0)
981	return setError(E_INVALIDARG,
982	tr("Invalid hardware version: %ls\n"), aHWVersion);
983
984	AutoCaller autoCaller(this);
985	CheckComRCReturnRC(autoCaller.rc());
986
987	AutoWriteLock alock(this);
988
989	HRESULT rc = checkStateDependency(MutableStateDep);
990	CheckComRCReturnRC(rc);
991
992	mHWData.backup();
993	mHWData->mHWVersion = hwVersion;
994
995	return S_OK;
996	}
997
998	STDMETHODIMP Machine::COMGETTER(MemorySize) (ULONG *memorySize)
999	{
1000	if (!memorySize)
1001	return E_POINTER;
1002
1003	AutoCaller autoCaller(this);
1004	CheckComRCReturnRC(autoCaller.rc());
1005
1006	AutoReadLock alock(this);
1007
1008	*memorySize = mHWData->mMemorySize;
1009
1010	return S_OK;
1011	}
1012
1013	STDMETHODIMP Machine::COMSETTER(MemorySize) (ULONG memorySize)
1014	{
1015	/* check RAM limits */
1016	if ( memorySize < MM_RAM_MIN_IN_MB
1017	\|\| memorySize > MM_RAM_MAX_IN_MB
1018	)
1019	return setError(E_INVALIDARG,
1020	tr("Invalid RAM size: %lu MB (must be in range [%lu, %lu] MB)"),
1021	memorySize, MM_RAM_MIN_IN_MB, MM_RAM_MAX_IN_MB);
1022
1023	AutoCaller autoCaller(this);
1024	CheckComRCReturnRC(autoCaller.rc());
1025
1026	AutoWriteLock alock(this);
1027
1028	HRESULT rc = checkStateDependency(MutableStateDep);
1029	CheckComRCReturnRC(rc);
1030
1031	mHWData.backup();
1032	mHWData->mMemorySize = memorySize;
1033
1034	return S_OK;
1035	}
1036
1037	STDMETHODIMP Machine::COMGETTER(CPUCount) (ULONG *CPUCount)
1038	{
1039	if (!CPUCount)
1040	return E_POINTER;
1041
1042	AutoCaller autoCaller(this);
1043	CheckComRCReturnRC(autoCaller.rc());
1044
1045	AutoReadLock alock(this);
1046
1047	*CPUCount = mHWData->mCPUCount;
1048
1049	return S_OK;
1050	}
1051
1052	STDMETHODIMP Machine::COMSETTER(CPUCount) (ULONG CPUCount)
1053	{
1054	/* check RAM limits */
1055	if ( CPUCount < SchemaDefs::MinCPUCount
1056	\|\| CPUCount > SchemaDefs::MaxCPUCount
1057	)
1058	return setError(E_INVALIDARG,
1059	tr("Invalid virtual CPU count: %lu (must be in range [%lu, %lu])"),
1060	CPUCount, SchemaDefs::MinCPUCount, SchemaDefs::MaxCPUCount);
1061
1062	AutoCaller autoCaller(this);
1063	CheckComRCReturnRC(autoCaller.rc());
1064
1065	AutoWriteLock alock(this);
1066
1067	HRESULT rc = checkStateDependency(MutableStateDep);
1068	CheckComRCReturnRC(rc);
1069
1070	mHWData.backup();
1071	mHWData->mCPUCount = CPUCount;
1072
1073	return S_OK;
1074	}
1075
1076	STDMETHODIMP Machine::COMGETTER(VRAMSize) (ULONG *memorySize)
1077	{
1078	if (!memorySize)
1079	return E_POINTER;
1080
1081	AutoCaller autoCaller(this);
1082	CheckComRCReturnRC(autoCaller.rc());
1083
1084	AutoReadLock alock(this);
1085
1086	*memorySize = mHWData->mVRAMSize;
1087
1088	return S_OK;
1089	}
1090
1091	STDMETHODIMP Machine::COMSETTER(VRAMSize) (ULONG memorySize)
1092	{
1093	/* check VRAM limits */
1094	if (memorySize < SchemaDefs::MinGuestVRAM \|\|
1095	memorySize > SchemaDefs::MaxGuestVRAM)
1096	return setError(E_INVALIDARG,
1097	tr("Invalid VRAM size: %lu MB (must be in range [%lu, %lu] MB)"),
1098	memorySize, SchemaDefs::MinGuestVRAM, SchemaDefs::MaxGuestVRAM);
1099
1100	AutoCaller autoCaller(this);
1101	CheckComRCReturnRC(autoCaller.rc());
1102
1103	AutoWriteLock alock(this);
1104
1105	HRESULT rc = checkStateDependency(MutableStateDep);
1106	CheckComRCReturnRC(rc);
1107
1108	mHWData.backup();
1109	mHWData->mVRAMSize = memorySize;
1110
1111	return S_OK;
1112	}
1113
1114	/** @todo this method should not be public */
1115	STDMETHODIMP Machine::COMGETTER(MemoryBalloonSize) (ULONG *memoryBalloonSize)
1116	{
1117	if (!memoryBalloonSize)
1118	return E_POINTER;
1119
1120	AutoCaller autoCaller(this);
1121	CheckComRCReturnRC(autoCaller.rc());
1122
1123	AutoReadLock alock(this);
1124
1125	*memoryBalloonSize = mHWData->mMemoryBalloonSize;
1126
1127	return S_OK;
1128	}
1129
1130	/** @todo this method should not be public */
1131	STDMETHODIMP Machine::COMSETTER(MemoryBalloonSize) (ULONG memoryBalloonSize)
1132	{
1133	/* check limits */
1134	if (memoryBalloonSize >= VMMDEV_MAX_MEMORY_BALLOON (mHWData->mMemorySize))
1135	return setError(E_INVALIDARG,
1136	tr("Invalid memory balloon size: %lu MB (must be in range [%lu, %lu] MB)"),
1137	memoryBalloonSize, 0, VMMDEV_MAX_MEMORY_BALLOON (mHWData->mMemorySize));
1138
1139	AutoCaller autoCaller(this);
1140	CheckComRCReturnRC(autoCaller.rc());
1141
1142	AutoWriteLock alock(this);
1143
1144	HRESULT rc = checkStateDependency(MutableStateDep);
1145	CheckComRCReturnRC(rc);
1146
1147	mHWData.backup();
1148	mHWData->mMemoryBalloonSize = memoryBalloonSize;
1149
1150	return S_OK;
1151	}
1152
1153	/** @todo this method should not be public */
1154	STDMETHODIMP Machine::COMGETTER(StatisticsUpdateInterval) (ULONG *statisticsUpdateInterval)
1155	{
1156	if (!statisticsUpdateInterval)
1157	return E_POINTER;
1158
1159	AutoCaller autoCaller(this);
1160	CheckComRCReturnRC(autoCaller.rc());
1161
1162	AutoReadLock alock(this);
1163
1164	*statisticsUpdateInterval = mHWData->mStatisticsUpdateInterval;
1165
1166	return S_OK;
1167	}
1168
1169	/** @todo this method should not be public */
1170	STDMETHODIMP Machine::COMSETTER(StatisticsUpdateInterval) (ULONG statisticsUpdateInterval)
1171	{
1172	AutoCaller autoCaller(this);
1173	CheckComRCReturnRC(autoCaller.rc());
1174
1175	AutoWriteLock alock(this);
1176
1177	HRESULT rc = checkStateDependency(MutableStateDep);
1178	CheckComRCReturnRC(rc);
1179
1180	mHWData.backup();
1181	mHWData->mStatisticsUpdateInterval = statisticsUpdateInterval;
1182
1183	return S_OK;
1184	}
1185
1186
1187	STDMETHODIMP Machine::COMGETTER(Accelerate3DEnabled)(BOOL *enabled)
1188	{
1189	if (!enabled)
1190	return E_POINTER;
1191
1192	AutoCaller autoCaller(this);
1193	CheckComRCReturnRC(autoCaller.rc());
1194
1195	AutoReadLock alock(this);
1196
1197	*enabled = mHWData->mAccelerate3DEnabled;
1198
1199	return S_OK;
1200	}
1201
1202	STDMETHODIMP Machine::COMSETTER(Accelerate3DEnabled)(BOOL enable)
1203	{
1204	AutoCaller autoCaller(this);
1205	CheckComRCReturnRC(autoCaller.rc());
1206
1207	AutoWriteLock alock(this);
1208
1209	HRESULT rc = checkStateDependency(MutableStateDep);
1210	CheckComRCReturnRC(rc);
1211
1212	/** @todo check validity! */
1213
1214	mHWData.backup();
1215	mHWData->mAccelerate3DEnabled = enable;
1216
1217	return S_OK;
1218	}
1219
1220
1221	STDMETHODIMP Machine::COMGETTER(Accelerate2DVideoEnabled)(BOOL *enabled)
1222	{
1223	if (!enabled)
1224	return E_POINTER;
1225
1226	AutoCaller autoCaller(this);
1227	CheckComRCReturnRC(autoCaller.rc());
1228
1229	AutoReadLock alock(this);
1230
1231	*enabled = mHWData->mAccelerate2DVideoEnabled;
1232
1233	return S_OK;
1234	}
1235
1236	STDMETHODIMP Machine::COMSETTER(Accelerate2DVideoEnabled)(BOOL enable)
1237	{
1238	AutoCaller autoCaller(this);
1239	CheckComRCReturnRC(autoCaller.rc());
1240
1241	AutoWriteLock alock(this);
1242
1243	HRESULT rc = checkStateDependency(MutableStateDep);
1244	CheckComRCReturnRC(rc);
1245
1246	/** @todo check validity! */
1247
1248	mHWData.backup();
1249	mHWData->mAccelerate2DVideoEnabled = enable;
1250
1251	return S_OK;
1252	}
1253
1254	STDMETHODIMP Machine::COMGETTER(MonitorCount) (ULONG *monitorCount)
1255	{
1256	if (!monitorCount)
1257	return E_POINTER;
1258
1259	AutoCaller autoCaller(this);
1260	CheckComRCReturnRC(autoCaller.rc());
1261
1262	AutoReadLock alock(this);
1263
1264	*monitorCount = mHWData->mMonitorCount;
1265
1266	return S_OK;
1267	}
1268
1269	STDMETHODIMP Machine::COMSETTER(MonitorCount) (ULONG monitorCount)
1270	{
1271	/* make sure monitor count is a sensible number */
1272	if (monitorCount < 1 \|\| monitorCount > SchemaDefs::MaxGuestMonitors)
1273	return setError(E_INVALIDARG,
1274	tr("Invalid monitor count: %lu (must be in range [%lu, %lu])"),
1275	monitorCount, 1, SchemaDefs::MaxGuestMonitors);
1276
1277	AutoCaller autoCaller(this);
1278	CheckComRCReturnRC(autoCaller.rc());
1279
1280	AutoWriteLock alock(this);
1281
1282	HRESULT rc = checkStateDependency(MutableStateDep);
1283	CheckComRCReturnRC(rc);
1284
1285	mHWData.backup();
1286	mHWData->mMonitorCount = monitorCount;
1287
1288	return S_OK;
1289	}
1290
1291	STDMETHODIMP Machine::COMGETTER(BIOSSettings)(IBIOSSettings **biosSettings)
1292	{
1293	if (!biosSettings)
1294	return E_POINTER;
1295
1296	AutoCaller autoCaller(this);
1297	CheckComRCReturnRC(autoCaller.rc());
1298
1299	/* mBIOSSettings is constant during life time, no need to lock */
1300	mBIOSSettings.queryInterfaceTo(biosSettings);
1301
1302	return S_OK;
1303	}
1304
1305	STDMETHODIMP Machine::COMGETTER(HWVirtExEnabled)(BOOL *enabled)
1306	{
1307	if (!enabled)
1308	return E_POINTER;
1309
1310	AutoCaller autoCaller(this);
1311	CheckComRCReturnRC(autoCaller.rc());
1312
1313	AutoReadLock alock(this);
1314
1315	*enabled = mHWData->mHWVirtExEnabled;
1316
1317	return S_OK;
1318	}
1319
1320	STDMETHODIMP Machine::COMSETTER(HWVirtExEnabled)(BOOL enable)
1321	{
1322	AutoCaller autoCaller(this);
1323	CheckComRCReturnRC(autoCaller.rc());
1324
1325	AutoWriteLock alock(this);
1326
1327	HRESULT rc = checkStateDependency(MutableStateDep);
1328	CheckComRCReturnRC(rc);
1329
1330	/** @todo check validity! */
1331
1332	mHWData.backup();
1333	mHWData->mHWVirtExEnabled = enable;
1334
1335	return S_OK;
1336	}
1337
1338	STDMETHODIMP Machine::COMGETTER(HWVirtExNestedPagingEnabled)(BOOL *enabled)
1339	{
1340	if (!enabled)
1341	return E_POINTER;
1342
1343	AutoCaller autoCaller(this);
1344	CheckComRCReturnRC(autoCaller.rc());
1345
1346	AutoReadLock alock(this);
1347
1348	*enabled = mHWData->mHWVirtExNestedPagingEnabled;
1349
1350	return S_OK;
1351	}
1352
1353	STDMETHODIMP Machine::COMSETTER(HWVirtExNestedPagingEnabled)(BOOL enable)
1354	{
1355	AutoCaller autoCaller(this);
1356	CheckComRCReturnRC(autoCaller.rc());
1357
1358	AutoWriteLock alock(this);
1359
1360	HRESULT rc = checkStateDependency(MutableStateDep);
1361	CheckComRCReturnRC(rc);
1362
1363	/** @todo check validity! */
1364
1365	mHWData.backup();
1366	mHWData->mHWVirtExNestedPagingEnabled = enable;
1367
1368	return S_OK;
1369	}
1370
1371	STDMETHODIMP Machine::COMGETTER(HWVirtExVPIDEnabled)(BOOL *enabled)
1372	{
1373	if (!enabled)
1374	return E_POINTER;
1375
1376	AutoCaller autoCaller(this);
1377	CheckComRCReturnRC(autoCaller.rc());
1378
1379	AutoReadLock alock(this);
1380
1381	*enabled = mHWData->mHWVirtExVPIDEnabled;
1382
1383	return S_OK;
1384	}
1385
1386	STDMETHODIMP Machine::COMSETTER(HWVirtExVPIDEnabled)(BOOL enable)
1387	{
1388	AutoCaller autoCaller(this);
1389	CheckComRCReturnRC(autoCaller.rc());
1390
1391	AutoWriteLock alock(this);
1392
1393	HRESULT rc = checkStateDependency(MutableStateDep);
1394	CheckComRCReturnRC(rc);
1395
1396	/** @todo check validity! */
1397
1398	mHWData.backup();
1399	mHWData->mHWVirtExVPIDEnabled = enable;
1400
1401	return S_OK;
1402	}
1403
1404	STDMETHODIMP Machine::COMGETTER(PAEEnabled)(BOOL *enabled)
1405	{
1406	if (!enabled)
1407	return E_POINTER;
1408
1409	AutoCaller autoCaller(this);
1410	CheckComRCReturnRC(autoCaller.rc());
1411
1412	AutoReadLock alock(this);
1413
1414	*enabled = mHWData->mPAEEnabled;
1415
1416	return S_OK;
1417	}
1418
1419	STDMETHODIMP Machine::COMSETTER(PAEEnabled)(BOOL enable)
1420	{
1421	AutoCaller autoCaller(this);
1422	CheckComRCReturnRC(autoCaller.rc());
1423
1424	AutoWriteLock alock(this);
1425
1426	HRESULT rc = checkStateDependency(MutableStateDep);
1427	CheckComRCReturnRC(rc);
1428
1429	/** @todo check validity! */
1430
1431	mHWData.backup();
1432	mHWData->mPAEEnabled = enable;
1433
1434	return S_OK;
1435	}
1436
1437	STDMETHODIMP Machine::COMGETTER(SnapshotFolder) (BSTR *aSnapshotFolder)
1438	{
1439	CheckComArgOutPointerValid(aSnapshotFolder);
1440
1441	AutoCaller autoCaller(this);
1442	CheckComRCReturnRC(autoCaller.rc());
1443
1444	AutoReadLock alock(this);
1445
1446	mUserData->mSnapshotFolderFull.cloneTo(aSnapshotFolder);
1447
1448	return S_OK;
1449	}
1450
1451	STDMETHODIMP Machine::COMSETTER(SnapshotFolder) (IN_BSTR aSnapshotFolder)
1452	{
1453	/* @todo (r=dmik):
1454	* 1. Allow to change the name of the snapshot folder containing snapshots
1455	* 2. Rename the folder on disk instead of just changing the property
1456	* value (to be smart and not to leave garbage). Note that it cannot be
1457	* done here because the change may be rolled back. Thus, the right
1458	* place is #saveSettings().
1459	*/
1460
1461	AutoCaller autoCaller(this);
1462	CheckComRCReturnRC(autoCaller.rc());
1463
1464	AutoWriteLock alock(this);
1465
1466	HRESULT rc = checkStateDependency(MutableStateDep);
1467	CheckComRCReturnRC(rc);
1468
1469	if (!mData->mCurrentSnapshot.isNull())
1470	return setError(E_FAIL,
1471	tr("The snapshot folder of a machine with snapshots cannot be changed (please discard all snapshots first)"));
1472
1473	Utf8Str snapshotFolder = aSnapshotFolder;
1474
1475	if (snapshotFolder.isEmpty())
1476	{
1477	if (isInOwnDir())
1478	{
1479	/* the default snapshots folder is 'Snapshots' in the machine dir */
1480	snapshotFolder = Utf8Str ("Snapshots");
1481	}
1482	else
1483	{
1484	/* the default snapshots folder is {UUID}, for backwards
1485	* compatibility and to resolve conflicts */
1486	snapshotFolder = Utf8StrFmt ("{%RTuuid}", mData->mUuid.raw());
1487	}
1488	}
1489
1490	int vrc = calculateFullPath(snapshotFolder, snapshotFolder);
1491	if (RT_FAILURE(vrc))
1492	return setError(E_FAIL,
1493	tr("Invalid snapshot folder '%ls' (%Rrc)"),
1494	aSnapshotFolder, vrc);
1495
1496	mUserData.backup();
1497	mUserData->mSnapshotFolder = aSnapshotFolder;
1498	mUserData->mSnapshotFolderFull = snapshotFolder;
1499
1500	return S_OK;
1501	}
1502
1503	STDMETHODIMP Machine::COMGETTER(MediumAttachments)(ComSafeArrayOut(IMediumAttachment*, aAttachments))
1504	{
1505	if (ComSafeArrayOutIsNull(aAttachments))
1506	return E_POINTER;
1507
1508	AutoCaller autoCaller(this);
1509	CheckComRCReturnRC(autoCaller.rc());
1510
1511	AutoReadLock alock(this);
1512
1513	SafeIfaceArray<IMediumAttachment> attachments(mMediaData->mAttachments);
1514	attachments.detachTo(ComSafeArrayOutArg(aAttachments));
1515
1516	return S_OK;
1517	}
1518
1519	STDMETHODIMP Machine::COMGETTER(VRDPServer)(IVRDPServer **vrdpServer)
1520	{
1521	#ifdef VBOX_WITH_VRDP
1522	if (!vrdpServer)
1523	return E_POINTER;
1524
1525	AutoCaller autoCaller(this);
1526	CheckComRCReturnRC(autoCaller.rc());
1527
1528	AutoReadLock alock(this);
1529
1530	Assert (!!mVRDPServer);
1531	mVRDPServer.queryInterfaceTo(vrdpServer);
1532
1533	return S_OK;
1534	#else
1535	NOREF(vrdpServer);
1536	ReturnComNotImplemented();
1537	#endif
1538	}
1539
1540	STDMETHODIMP Machine::COMGETTER(AudioAdapter)(IAudioAdapter **audioAdapter)
1541	{
1542	if (!audioAdapter)
1543	return E_POINTER;
1544
1545	AutoCaller autoCaller(this);
1546	CheckComRCReturnRC(autoCaller.rc());
1547
1548	AutoReadLock alock(this);
1549
1550	mAudioAdapter.queryInterfaceTo(audioAdapter);
1551	return S_OK;
1552	}
1553
1554	STDMETHODIMP Machine::COMGETTER(USBController) (IUSBController **aUSBController)
1555	{
1556	#ifdef VBOX_WITH_USB
1557	CheckComArgOutPointerValid(aUSBController);
1558
1559	AutoCaller autoCaller(this);
1560	CheckComRCReturnRC(autoCaller.rc());
1561
1562	MultiResult rc = mParent->host()->checkUSBProxyService();
1563	CheckComRCReturnRC(rc);
1564
1565	AutoReadLock alock(this);
1566
1567	return rc = mUSBController.queryInterfaceTo(aUSBController);
1568	#else
1569	/* Note: The GUI depends on this method returning E_NOTIMPL with no
1570	* extended error info to indicate that USB is simply not available
1571	* (w/o treting it as a failure), for example, as in OSE */
1572	NOREF(aUSBController);
1573	ReturnComNotImplemented();
1574	#endif
1575	}
1576
1577	STDMETHODIMP Machine::COMGETTER(SettingsFilePath) (BSTR *aFilePath)
1578	{
1579	CheckComArgOutPointerValid(aFilePath);
1580
1581	AutoLimitedCaller autoCaller(this);
1582	CheckComRCReturnRC(autoCaller.rc());
1583
1584	AutoReadLock alock(this);
1585
1586	mData->m_strConfigFileFull.cloneTo(aFilePath);
1587	return S_OK;
1588	}
1589
1590	STDMETHODIMP Machine::COMGETTER(SettingsModified) (BOOL *aModified)
1591	{
1592	CheckComArgOutPointerValid(aModified);
1593
1594	AutoCaller autoCaller(this);
1595	CheckComRCReturnRC(autoCaller.rc());
1596
1597	AutoWriteLock alock(this);
1598
1599	HRESULT rc = checkStateDependency(MutableStateDep);
1600	CheckComRCReturnRC(rc);
1601
1602	if (mData->mInitMode == Init_New)
1603	/*
1604	* if this is a new machine then no config file exists yet, so always return TRUE
1605	*/
1606	*aModified = TRUE;
1607	else
1608	*aModified = isModified();
1609
1610	return S_OK;
1611	}
1612
1613	STDMETHODIMP Machine::COMGETTER(SessionState) (SessionState_T *aSessionState)
1614	{
1615	CheckComArgOutPointerValid(aSessionState);
1616
1617	AutoCaller autoCaller(this);
1618	CheckComRCReturnRC(autoCaller.rc());
1619
1620	AutoReadLock alock(this);
1621
1622	*aSessionState = mData->mSession.mState;
1623
1624	return S_OK;
1625	}
1626
1627	STDMETHODIMP Machine::COMGETTER(SessionType) (BSTR *aSessionType)
1628	{
1629	CheckComArgOutPointerValid(aSessionType);
1630
1631	AutoCaller autoCaller(this);
1632	CheckComRCReturnRC(autoCaller.rc());
1633
1634	AutoReadLock alock(this);
1635
1636	if (mData->mSession.mType.isNull())
1637	Bstr("").cloneTo(aSessionType);
1638	else
1639	mData->mSession.mType.cloneTo(aSessionType);
1640
1641	return S_OK;
1642	}
1643
1644	STDMETHODIMP Machine::COMGETTER(SessionPid) (ULONG *aSessionPid)
1645	{
1646	CheckComArgOutPointerValid(aSessionPid);
1647
1648	AutoCaller autoCaller(this);
1649	CheckComRCReturnRC(autoCaller.rc());
1650
1651	AutoReadLock alock(this);
1652
1653	*aSessionPid = mData->mSession.mPid;
1654
1655	return S_OK;
1656	}
1657
1658	STDMETHODIMP Machine::COMGETTER(State) (MachineState_T *machineState)
1659	{
1660	if (!machineState)
1661	return E_POINTER;
1662
1663	AutoCaller autoCaller(this);
1664	CheckComRCReturnRC(autoCaller.rc());
1665
1666	AutoReadLock alock(this);
1667
1668	*machineState = mData->mMachineState;
1669
1670	return S_OK;
1671	}
1672
1673	STDMETHODIMP Machine::COMGETTER(LastStateChange) (LONG64 *aLastStateChange)
1674	{
1675	CheckComArgOutPointerValid(aLastStateChange);
1676
1677	AutoCaller autoCaller(this);
1678	CheckComRCReturnRC(autoCaller.rc());
1679
1680	AutoReadLock alock(this);
1681
1682	*aLastStateChange = RTTimeSpecGetMilli (&mData->mLastStateChange);
1683
1684	return S_OK;
1685	}
1686
1687	STDMETHODIMP Machine::COMGETTER(StateFilePath) (BSTR *aStateFilePath)
1688	{
1689	CheckComArgOutPointerValid(aStateFilePath);
1690
1691	AutoCaller autoCaller(this);
1692	CheckComRCReturnRC(autoCaller.rc());
1693
1694	AutoReadLock alock(this);
1695
1696	if (mSSData->mStateFilePath.isEmpty())
1697	Bstr("").cloneTo(aStateFilePath);
1698	else
1699	mSSData->mStateFilePath.cloneTo(aStateFilePath);
1700
1701	return S_OK;
1702	}
1703
1704	STDMETHODIMP Machine::COMGETTER(LogFolder) (BSTR *aLogFolder)
1705	{
1706	CheckComArgOutPointerValid(aLogFolder);
1707
1708	AutoCaller autoCaller(this);
1709	AssertComRCReturnRC(autoCaller.rc());
1710
1711	AutoReadLock alock(this);
1712
1713	Utf8Str logFolder;
1714	getLogFolder (logFolder);
1715
1716	Bstr (logFolder).cloneTo(aLogFolder);
1717
1718	return S_OK;
1719	}
1720
1721	STDMETHODIMP Machine::COMGETTER(CurrentSnapshot) (ISnapshot **aCurrentSnapshot)
1722	{
1723	CheckComArgOutPointerValid(aCurrentSnapshot);
1724
1725	AutoCaller autoCaller(this);
1726	CheckComRCReturnRC(autoCaller.rc());
1727
1728	AutoReadLock alock(this);
1729
1730	mData->mCurrentSnapshot.queryInterfaceTo(aCurrentSnapshot);
1731
1732	return S_OK;
1733	}
1734
1735	STDMETHODIMP Machine::COMGETTER(SnapshotCount)(ULONG *aSnapshotCount)
1736	{
1737	CheckComArgOutPointerValid(aSnapshotCount);
1738
1739	AutoCaller autoCaller(this);
1740	CheckComRCReturnRC(autoCaller.rc());
1741
1742	AutoReadLock alock(this);
1743
1744	*aSnapshotCount = mData->mFirstSnapshot.isNull()
1745	? 0
1746	: mData->mFirstSnapshot->getAllChildrenCount() + 1;
1747
1748	return S_OK;
1749	}
1750
1751	STDMETHODIMP Machine::COMGETTER(CurrentStateModified) (BOOL *aCurrentStateModified)
1752	{
1753	CheckComArgOutPointerValid(aCurrentStateModified);
1754
1755	AutoCaller autoCaller(this);
1756	CheckComRCReturnRC(autoCaller.rc());
1757
1758	AutoReadLock alock(this);
1759
1760	/* Note: for machines with no snapshots, we always return FALSE
1761	* (mData->mCurrentStateModified will be TRUE in this case, for historical
1762	* reasons :) */
1763
1764	*aCurrentStateModified = mData->mFirstSnapshot.isNull()
1765	? FALSE
1766	: mData->mCurrentStateModified;
1767
1768	return S_OK;
1769	}
1770
1771	STDMETHODIMP Machine::COMGETTER(SharedFolders) (ComSafeArrayOut(ISharedFolder *, aSharedFolders))
1772	{
1773	CheckComArgOutSafeArrayPointerValid(aSharedFolders);
1774
1775	AutoCaller autoCaller(this);
1776	CheckComRCReturnRC(autoCaller.rc());
1777
1778	AutoReadLock alock(this);
1779
1780	SafeIfaceArray<ISharedFolder> folders(mHWData->mSharedFolders);
1781	folders.detachTo(ComSafeArrayOutArg(aSharedFolders));
1782
1783	return S_OK;
1784	}
1785
1786	STDMETHODIMP Machine::COMGETTER(ClipboardMode) (ClipboardMode_T *aClipboardMode)
1787	{
1788	CheckComArgOutPointerValid(aClipboardMode);
1789
1790	AutoCaller autoCaller(this);
1791	CheckComRCReturnRC(autoCaller.rc());
1792
1793	AutoReadLock alock(this);
1794
1795	*aClipboardMode = mHWData->mClipboardMode;
1796
1797	return S_OK;
1798	}
1799
1800	STDMETHODIMP
1801	Machine::COMSETTER(ClipboardMode) (ClipboardMode_T aClipboardMode)
1802	{
1803	AutoCaller autoCaller(this);
1804	CheckComRCReturnRC(autoCaller.rc());
1805
1806	AutoWriteLock alock(this);
1807
1808	HRESULT rc = checkStateDependency(MutableStateDep);
1809	CheckComRCReturnRC(rc);
1810
1811	mHWData.backup();
1812	mHWData->mClipboardMode = aClipboardMode;
1813
1814	return S_OK;
1815	}
1816
1817	STDMETHODIMP
1818	Machine::COMGETTER(GuestPropertyNotificationPatterns) (BSTR *aPatterns)
1819	{
1820	CheckComArgOutPointerValid(aPatterns);
1821
1822	AutoCaller autoCaller(this);
1823	CheckComRCReturnRC(autoCaller.rc());
1824
1825	AutoReadLock alock(this);
1826
1827	mHWData->mGuestPropertyNotificationPatterns.cloneTo(aPatterns);
1828
1829	return RT_LIKELY (aPatterns != NULL) ? S_OK : E_OUTOFMEMORY;
1830	}
1831
1832	STDMETHODIMP
1833	Machine::COMSETTER(GuestPropertyNotificationPatterns) (IN_BSTR aPatterns)
1834	{
1835	AssertLogRelReturn (VALID_PTR (aPatterns), E_POINTER);
1836	AutoCaller autoCaller(this);
1837	CheckComRCReturnRC(autoCaller.rc());
1838
1839	AutoWriteLock alock(this);
1840
1841	HRESULT rc = checkStateDependency(MutableStateDep);
1842	CheckComRCReturnRC(rc);
1843
1844	mHWData.backup();
1845	mHWData->mGuestPropertyNotificationPatterns = aPatterns;
1846
1847	return RT_LIKELY (!mHWData->mGuestPropertyNotificationPatterns.isNull())
1848	? S_OK : E_OUTOFMEMORY;
1849	}
1850
1851	STDMETHODIMP
1852	Machine::COMGETTER(StorageControllers) (ComSafeArrayOut(IStorageController *, aStorageControllers))
1853	{
1854	CheckComArgOutSafeArrayPointerValid(aStorageControllers);
1855
1856	AutoCaller autoCaller(this);
1857	CheckComRCReturnRC(autoCaller.rc());
1858
1859	AutoReadLock alock(this);
1860
1861	SafeIfaceArray<IStorageController> ctrls (*mStorageControllers.data());
1862	ctrls.detachTo(ComSafeArrayOutArg(aStorageControllers));
1863
1864	return S_OK;
1865	}
1866
1867	// IMachine methods
1868	/////////////////////////////////////////////////////////////////////////////
1869
1870	STDMETHODIMP Machine::SetBootOrder (ULONG aPosition, DeviceType_T aDevice)
1871	{
1872	if (aPosition < 1 \|\| aPosition > SchemaDefs::MaxBootPosition)
1873	return setError(E_INVALIDARG,
1874	tr ("Invalid boot position: %lu (must be in range [1, %lu])"),
1875	aPosition, SchemaDefs::MaxBootPosition);
1876
1877	if (aDevice == DeviceType_USB)
1878	return setError(E_NOTIMPL,
1879	tr("Booting from USB device is currently not supported"));
1880
1881	AutoCaller autoCaller(this);
1882	CheckComRCReturnRC(autoCaller.rc());
1883
1884	AutoWriteLock alock(this);
1885
1886	HRESULT rc = checkStateDependency(MutableStateDep);
1887	CheckComRCReturnRC(rc);
1888
1889	mHWData.backup();
1890	mHWData->mBootOrder [aPosition - 1] = aDevice;
1891
1892	return S_OK;
1893	}
1894
1895	STDMETHODIMP Machine::GetBootOrder (ULONG aPosition, DeviceType_T *aDevice)
1896	{
1897	if (aPosition < 1 \|\| aPosition > SchemaDefs::MaxBootPosition)
1898	return setError(E_INVALIDARG,
1899	tr("Invalid boot position: %lu (must be in range [1, %lu])"),
1900	aPosition, SchemaDefs::MaxBootPosition);
1901
1902	AutoCaller autoCaller(this);
1903	CheckComRCReturnRC(autoCaller.rc());
1904
1905	AutoReadLock alock(this);
1906
1907	*aDevice = mHWData->mBootOrder [aPosition - 1];
1908
1909	return S_OK;
1910	}
1911
1912	STDMETHODIMP Machine::AttachDevice(IN_BSTR aControllerName,
1913	LONG aControllerPort,
1914	LONG aDevice,
1915	DeviceType_T aType,
1916	IN_BSTR aId)
1917	{
1918	LogFlowThisFunc(("aControllerName=\"%ls\" aControllerPort=%d aDevice=%d\n",
1919	aControllerName, aControllerPort, aDevice));
1920
1921	AutoCaller autoCaller(this);
1922	CheckComRCReturnRC(autoCaller.rc());
1923
1924	/* VirtualBox::findHardDisk() and the corresponding other methods for
1925	* DVD and floppy media need write lock (for getting rid of unneeded
1926	* host drives which got enumerated); also we want to make sure the
1927	* media object we pick up doesn't get unregistered before we finish. */
1928	AutoMultiWriteLock2 alock(mParent, this);
1929
1930	HRESULT rc = checkStateDependency(MutableStateDep);
1931	CheckComRCReturnRC(rc);
1932
1933	/// @todo NEWMEDIA implicit machine registration
1934	if (!mData->mRegistered)
1935	return setError(VBOX_E_INVALID_OBJECT_STATE,
1936	tr("Cannot attach storage devices to an unregistered machine"));
1937
1938	AssertReturn(mData->mMachineState != MachineState_Saved, E_FAIL);
1939
1940	if (Global::IsOnlineOrTransient(mData->mMachineState))
1941	return setError(VBOX_E_INVALID_VM_STATE,
1942	tr("Invalid machine state: %d"),
1943	mData->mMachineState);
1944
1945	/* Check for an existing controller. */
1946	ComObjPtr<StorageController> ctl;
1947	rc = getStorageControllerByName(aControllerName, ctl, true /* aSetError */);
1948	CheckComRCReturnRC(rc);
1949
1950	/* check that the port and device are not out of range. */
1951	ULONG portCount;
1952	ULONG devicesPerPort;
1953	rc = ctl->COMGETTER(PortCount)(&portCount);
1954	CheckComRCReturnRC(rc);
1955	rc = ctl->COMGETTER(MaxDevicesPerPortCount)(&devicesPerPort);
1956	CheckComRCReturnRC(rc);
1957
1958	if ( (aControllerPort < 0)
1959	\|\| (aControllerPort >= (LONG)portCount)
1960	\|\| (aDevice < 0)
1961	\|\| (aDevice >= (LONG)devicesPerPort)
1962	)
1963	return setError(E_INVALIDARG,
1964	tr("The port and/or count parameter are out of range [%lu:%lu]"),
1965	portCount,
1966	devicesPerPort);
1967
1968	/* check if the device slot is already busy */
1969	MediumAttachment *pAttachTemp;
1970	if ((pAttachTemp = findAttachment(mMediaData->mAttachments,
1971	aControllerName,
1972	aControllerPort,
1973	aDevice)))
1974	{
1975	Medium *pMedium = pAttachTemp->medium();
1976	if (pMedium)
1977	{
1978	AutoReadLock mediumLock(pMedium);
1979	return setError(VBOX_E_OBJECT_IN_USE,
1980	tr("Medium '%ls' is already attached to device slot %d on port %d of controller '%ls' of this virtual machine"),
1981	pMedium->locationFull().raw(), aDevice, aControllerPort, aControllerName);
1982	}
1983	else
1984	return setError(VBOX_E_OBJECT_IN_USE,
1985	tr("Device is already attached to slot %d on port %d of controller '%ls' of this virtual machine"),
1986	aDevice, aControllerPort, aControllerName);
1987	}
1988
1989	Guid id(aId);
1990
1991	ComObjPtr<Medium> medium;
1992	switch (aType)
1993	{
1994	case DeviceType_HardDisk:
1995	/* find a hard disk by UUID */
1996	rc = mParent->findHardDisk(&id, NULL, true /* aSetError */, &medium);
1997	CheckComRCReturnRC(rc);
1998	break;
1999
2000	case DeviceType_DVD:
2001	if (!id.isEmpty())
2002	{
2003	/* first search for host drive */
2004	SafeIfaceArray<IMedium> drivevec;
2005	rc = mParent->host()->COMGETTER(DVDDrives)(ComSafeArrayAsOutParam(drivevec));
2006	if (SUCCEEDED(rc))
2007	{
2008	for (size_t i = 0; i < drivevec.size(); ++i)
2009	{
2010	/// @todo eliminate this conversion
2011	ComObjPtr<Medium> med = (Medium *)drivevec[i];
2012	if (med->id() == id)
2013	{
2014	medium = med;
2015	break;
2016	}
2017	}
2018	}
2019
2020	if (medium.isNull())
2021	{
2022	/* find a DVD image by UUID */
2023	rc = mParent->findDVDImage(&id, NULL, true /* aSetError */, &medium);
2024	CheckComRCReturnRC(rc);
2025	}
2026	}
2027	else
2028	{
2029	/* null UUID means null medium, which needs no code */
2030	}
2031	break;
2032
2033	case DeviceType_Floppy:
2034	if (!id.isEmpty())
2035	{
2036	/* first search for host drive */
2037	SafeIfaceArray<IMedium> drivevec;
2038	rc = mParent->host()->COMGETTER(FloppyDrives)(ComSafeArrayAsOutParam(drivevec));
2039	if (SUCCEEDED(rc))
2040	{
2041	for (size_t i = 0; i < drivevec.size(); ++i)
2042	{
2043	/// @todo eliminate this conversion
2044	ComObjPtr<Medium> med = (Medium *)drivevec[i];
2045	if (med->id() == id)
2046	{
2047	medium = med;
2048	break;
2049	}
2050	}
2051	}
2052
2053	if (medium.isNull())
2054	{
2055	/* find a floppy image by UUID */
2056	rc = mParent->findFloppyImage(&id, NULL, true /* aSetError */, &medium);
2057	CheckComRCReturnRC(rc);
2058	}
2059	}
2060	else
2061	{
2062	/* null UUID means null medium, which needs no code */
2063	}
2064	break;
2065
2066	default:
2067	return setError(E_INVALIDARG,
2068	tr("The device type %d is not recognized"),
2069	(int)aType);
2070	}
2071
2072	AutoCaller mediumCaller(medium);
2073	CheckComRCReturnRC(mediumCaller.rc());
2074
2075	AutoWriteLock mediumLock(medium);
2076
2077	if ( (pAttachTemp = findAttachment(mMediaData->mAttachments, medium))
2078	&& !medium.isNull())
2079	{
2080	return setError(VBOX_E_OBJECT_IN_USE,
2081	tr("Hard disk '%ls' is already attached to this virtual machine"),
2082	medium->locationFull().raw());
2083	}
2084
2085	bool indirect = false;
2086	if (!medium.isNull())
2087	indirect = medium->isReadOnly();
2088	bool associate = true;
2089
2090	do
2091	{
2092	if (mMediaData.isBackedUp())
2093	{
2094	const MediaData::AttachmentList &oldAtts = mMediaData.backedUpData()->mAttachments;
2095
2096	/* check if the medium was attached to the VM before we started
2097	* changing attachments in which case the attachment just needs to
2098	* be restored */
2099	if ((pAttachTemp = findAttachment(oldAtts, medium)))
2100	{
2101	AssertReturn(!indirect, E_FAIL);
2102
2103	/* see if it's the same bus/channel/device */
2104	if (pAttachTemp->matches(aControllerName, aControllerPort, aDevice))
2105	{
2106	/* the simplest case: restore the whole attachment
2107	* and return, nothing else to do */
2108	mMediaData->mAttachments.push_back(pAttachTemp);
2109	return S_OK;
2110	}
2111
2112	/* bus/channel/device differ; we need a new attachment object,
2113	* but don't try to associate it again */
2114	associate = false;
2115	break;
2116	}
2117	}
2118
2119	/* go further only if the attachment is to be indirect */
2120	if (!indirect)
2121	break;
2122
2123	/* perform the so called smart attachment logic for indirect
2124	* attachments. Note that smart attachment is only applicable to base
2125	* hard disks. */
2126
2127	if (medium->parent().isNull())
2128	{
2129	/* first, investigate the backup copy of the current hard disk
2130	* attachments to make it possible to re-attach existing diffs to
2131	* another device slot w/o losing their contents */
2132	if (mMediaData.isBackedUp())
2133	{
2134	const MediaData::AttachmentList &oldAtts = mMediaData.backedUpData()->mAttachments;
2135
2136	MediaData::AttachmentList::const_iterator foundIt = oldAtts.end();
2137	uint32_t foundLevel = 0;
2138
2139	for (MediaData::AttachmentList::const_iterator it = oldAtts.begin();
2140	it != oldAtts.end();
2141	++it)
2142	{
2143	uint32_t level = 0;
2144	MediumAttachment pAttach = it;
2145	ComObjPtr<Medium> pMedium = pAttach->medium();
2146	Assert(!pMedium.isNull() \|\| pAttach->type() != DeviceType_HardDisk);
2147	if (pMedium.isNull())
2148	continue;
2149
2150	if (pMedium->base(&level).equalsTo(medium))
2151	{
2152	/* skip the hard disk if its currently attached (we
2153	* cannot attach the same hard disk twice) */
2154	if (findAttachment(mMediaData->mAttachments,
2155	pMedium))
2156	continue;
2157
2158	/* matched device, channel and bus (i.e. attached to the
2159	* same place) will win and immediately stop the search;
2160	* otherwise the attachment that has the youngest
2161	* descendant of medium will be used
2162	*/
2163	if (pAttach->matches(aControllerName, aControllerPort, aDevice))
2164	{
2165	/* the simplest case: restore the whole attachment
2166	* and return, nothing else to do */
2167	mMediaData->mAttachments.push_back(*it);
2168	return S_OK;
2169	}
2170	else if ( foundIt == oldAtts.end()
2171	\|\| level > foundLevel /* prefer younger */
2172	)
2173	{
2174	foundIt = it;
2175	foundLevel = level;
2176	}
2177	}
2178	}
2179
2180	if (foundIt != oldAtts.end())
2181	{
2182	/* use the previously attached hard disk */
2183	medium = (*foundIt)->medium();
2184	mediumCaller.attach(medium);
2185	CheckComRCReturnRC(mediumCaller.rc());
2186	mediumLock.attach(medium);
2187	/* not implicit, doesn't require association with this VM */
2188	indirect = false;
2189	associate = false;
2190	/* go right to the MediumAttachment creation */
2191	break;
2192	}
2193	}
2194
2195	/* then, search through snapshots for the best diff in the given
2196	* hard disk's chain to base the new diff on */
2197
2198	ComObjPtr<Medium> base;
2199	ComObjPtr<Snapshot> snap = mData->mCurrentSnapshot;
2200	while (snap)
2201	{
2202	AutoReadLock snapLock(snap);
2203
2204	const MediaData::AttachmentList &snapAtts = snap->getSnapshotMachine()->mMediaData->mAttachments;
2205
2206	MediaData::AttachmentList::const_iterator foundIt = snapAtts.end();
2207	uint32_t foundLevel = 0;
2208
2209	for (MediaData::AttachmentList::const_iterator it = snapAtts.begin();
2210	it != snapAtts.end();
2211	++it)
2212	{
2213	MediumAttachment pAttach = it;
2214	ComObjPtr<Medium> pMedium = pAttach->medium();
2215	Assert(!pMedium.isNull() \|\| pAttach->type() != DeviceType_HardDisk);
2216	if (pMedium.isNull())
2217	continue;
2218
2219	uint32_t level = 0;
2220	if (pMedium->base(&level).equalsTo(medium))
2221	{
2222	/* matched device, channel and bus (i.e. attached to the
2223	* same place) will win and immediately stop the search;
2224	* otherwise the attachment that has the youngest
2225	* descendant of medium will be used
2226	*/
2227	if ( (*it)->device() == aDevice
2228	&& (*it)->port() == aControllerPort
2229	&& (*it)->controller() == aControllerName
2230	)
2231	{
2232	foundIt = it;
2233	break;
2234	}
2235	else if ( foundIt == snapAtts.end()
2236	\|\| level > foundLevel /* prefer younger */
2237	)
2238	{
2239	foundIt = it;
2240	foundLevel = level;
2241	}
2242	}
2243	}
2244
2245	if (foundIt != snapAtts.end())
2246	{
2247	base = (*foundIt)->medium();
2248	break;
2249	}
2250
2251	snap = snap->parent();
2252	}
2253
2254	/* found a suitable diff, use it as a base */
2255	if (!base.isNull())
2256	{
2257	medium = base;
2258	mediumCaller.attach(medium);
2259	CheckComRCReturnRC(mediumCaller.rc());
2260	mediumLock.attach(medium);
2261	}
2262	}
2263
2264	ComObjPtr<Medium> diff;
2265	diff.createObject();
2266	rc = diff->init(mParent,
2267	medium->preferredDiffFormat().raw(),
2268	BstrFmt("%ls"RTPATH_SLASH_STR,
2269	mUserData->mSnapshotFolderFull.raw()).raw());
2270	CheckComRCReturnRC(rc);
2271
2272	/* make sure the hard disk is not modified before createDiffStorage() */
2273	rc = medium->LockRead(NULL);
2274	CheckComRCReturnRC(rc);
2275
2276	/* will leave the lock before the potentially lengthy operation, so
2277	* protect with the special state */
2278	MachineState_T oldState = mData->mMachineState;
2279	setMachineState(MachineState_SettingUp);
2280
2281	mediumLock.leave();
2282	alock.leave();
2283
2284	rc = medium->createDiffStorageAndWait(diff, MediumVariant_Standard);
2285
2286	alock.enter();
2287	mediumLock.enter();
2288
2289	setMachineState(oldState);
2290
2291	medium->UnlockRead(NULL);
2292
2293	CheckComRCReturnRC(rc);
2294
2295	/* use the created diff for the actual attachment */
2296	medium = diff;
2297	mediumCaller.attach(medium);
2298	CheckComRCReturnRC(mediumCaller.rc());
2299	mediumLock.attach(medium);
2300	}
2301	while (0);
2302
2303	ComObjPtr<MediumAttachment> attachment;
2304	attachment.createObject();
2305	rc = attachment->init(this, medium, aControllerName, aControllerPort, aDevice, aType, indirect);
2306	CheckComRCReturnRC(rc);
2307
2308	if (associate && !medium.isNull())
2309	{
2310	/* as the last step, associate the hard disk to the VM */
2311	rc = medium->attachTo(mData->mUuid);
2312	/* here we can fail because of Deleting, or being in process of
2313	* creating a Diff */
2314	CheckComRCReturnRC(rc);
2315	}
2316
2317	/* success: finally remember the attachment */
2318	mMediaData.backup();
2319	mMediaData->mAttachments.push_back(attachment);
2320
2321	return rc;
2322	}
2323
2324	STDMETHODIMP Machine::DetachDevice(IN_BSTR aControllerName, LONG aControllerPort,
2325	LONG aDevice)
2326	{
2327	CheckComArgNotNull(aControllerName);
2328
2329	LogFlowThisFunc(("aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld\n",
2330	aControllerName, aControllerPort, aDevice));
2331
2332	AutoCaller autoCaller(this);
2333	CheckComRCReturnRC(autoCaller.rc());
2334
2335	AutoWriteLock alock(this);
2336
2337	HRESULT rc = checkStateDependency(MutableStateDep);
2338	CheckComRCReturnRC(rc);
2339
2340	AssertReturn(mData->mMachineState != MachineState_Saved, E_FAIL);
2341
2342	if (Global::IsOnlineOrTransient(mData->mMachineState))
2343	return setError(VBOX_E_INVALID_VM_STATE,
2344	tr("Invalid machine state: %d"), mData->mMachineState);
2345
2346	MediumAttachment *pAttach = findAttachment(mMediaData->mAttachments,
2347	aControllerName,
2348	aControllerPort,
2349	aDevice);
2350	if (!pAttach)
2351	return setError(VBOX_E_OBJECT_NOT_FOUND,
2352	tr("No storage device attached to device slot %d on port %d of controller '%ls'"),
2353	aDevice, aControllerPort, aControllerName);
2354
2355	ComObjPtr<Medium> hd = pAttach->medium();
2356
2357	if (pAttach->isImplicit())
2358	{
2359	/* attempt to implicitly delete the implicitly created diff */
2360
2361	/// @todo move the implicit flag from MediumAttachment to Medium
2362	/// and forbid any hard disk operation when it is implicit. Or maybe
2363	/// a special media state for it to make it even more simple.
2364
2365	Assert(mMediaData.isBackedUp());
2366
2367	/* will leave the lock before the potentially lengthy operation, so
2368	* protect with the special state */
2369	MachineState_T oldState = mData->mMachineState;
2370	setMachineState(MachineState_SettingUp);
2371
2372	alock.leave();
2373
2374	rc = hd->deleteStorageAndWait();
2375
2376	alock.enter();
2377
2378	setMachineState(oldState);
2379
2380	CheckComRCReturnRC(rc);
2381	}
2382
2383	mMediaData.backup();
2384
2385	/* we cannot use erase (it) below because backup() above will create
2386	* a copy of the list and make this copy active, but the iterator
2387	* still refers to the original and is not valid for the copy */
2388	mMediaData->mAttachments.remove(pAttach);
2389
2390	return S_OK;
2391	}
2392
2393	STDMETHODIMP Machine::MountMedium(IN_BSTR aControllerName,
2394	LONG aControllerPort,
2395	LONG aDevice,
2396	IN_BSTR aId)
2397	{
2398	int rc = S_OK;
2399	LogFlowThisFunc(("aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld\n",
2400	aControllerName, aControllerPort, aDevice));
2401
2402	CheckComArgNotNull(aControllerName);
2403
2404	AutoCaller autoCaller(this);
2405	CheckComRCReturnRC(autoCaller.rc());
2406
2407	AutoWriteLock alock(this);
2408
2409	ComObjPtr<MediumAttachment> pAttach = findAttachment(mMediaData->mAttachments,
2410	aControllerName,
2411	aControllerPort,
2412	aDevice);
2413	if (pAttach.isNull())
2414	return setError(VBOX_E_OBJECT_NOT_FOUND,
2415	tr("No drive attached to device slot %d on port %d of controller '%ls'"),
2416	aDevice, aControllerPort, aControllerName);
2417
2418	Guid id(aId);
2419	ComObjPtr<Medium> medium;
2420	switch (pAttach->type())
2421	{
2422	case DeviceType_DVD:
2423	if (!id.isEmpty())
2424	{
2425	/* find a DVD by host device UUID */
2426	SafeIfaceArray<IMedium> drivevec;
2427	rc = mParent->host()->COMGETTER(DVDDrives)(ComSafeArrayAsOutParam(drivevec));
2428	if (SUCCEEDED(rc))
2429	{
2430	for (size_t i = 0; i < drivevec.size(); ++i)
2431	{
2432	/// @todo eliminate this conversion
2433	ComObjPtr<Medium> med = (Medium *)drivevec[i];
2434	if (id == med->id())
2435	{
2436	medium = med;
2437	break;
2438	}
2439	}
2440	}
2441	/* find a DVD by UUID */
2442	if (medium.isNull())
2443	rc = mParent->findDVDImage(&id, NULL, true /* aDoSetError */, &medium);
2444	}
2445	CheckComRCReturnRC(rc);
2446	break;
2447	case DeviceType_Floppy:
2448	if (!id.isEmpty())
2449	{
2450	/* find a Floppy by host device UUID */
2451	SafeIfaceArray<IMedium> drivevec;
2452	rc = mParent->host()->COMGETTER(FloppyDrives)(ComSafeArrayAsOutParam(drivevec));
2453	if (SUCCEEDED(rc))
2454	{
2455	for (size_t i = 0; i < drivevec.size(); ++i)
2456	{
2457	/// @todo eliminate this conversion
2458	ComObjPtr<Medium> med = (Medium *)drivevec[i];
2459	if (id == med->id())
2460	{
2461	medium = med;
2462	break;
2463	}
2464	}
2465	}
2466	/* find a Floppy by UUID */
2467	if (medium.isNull())
2468	rc = mParent->findFloppyImage(&id, NULL, true /* aDoSetError */, &medium);
2469	}
2470	CheckComRCReturnRC(rc);
2471	break;
2472	default:
2473	return setError(VBOX_E_INVALID_OBJECT_STATE,
2474	tr("Cannot change medium attached to device slot %d on port %d of controller '%ls'"),
2475	aDevice, aControllerPort, aControllerName);
2476	}
2477
2478	if (SUCCEEDED(rc))
2479	{
2480	AutoWriteLock attLock(pAttach);
2481	pAttach->updateMedium(medium, false /* aImplicit */);
2482	}
2483
2484	alock.unlock();
2485	onMediumChange(pAttach);
2486
2487	return rc;
2488	}
2489
2490	STDMETHODIMP Machine::GetMedium(IN_BSTR aControllerName,
2491	LONG aControllerPort,
2492	LONG aDevice,
2493	IMedium **aMedium)
2494	{
2495	LogFlowThisFunc(("aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld\n",
2496	aControllerName, aControllerPort, aDevice));
2497
2498	CheckComArgNotNull(aControllerName);
2499	CheckComArgOutPointerValid(aMedium);
2500
2501	AutoCaller autoCaller(this);
2502	CheckComRCReturnRC(autoCaller.rc());
2503
2504	AutoReadLock alock(this);
2505
2506	*aMedium = NULL;
2507
2508	ComObjPtr<MediumAttachment> pAttach = findAttachment(mMediaData->mAttachments,
2509	aControllerName,
2510	aControllerPort,
2511	aDevice);
2512	if (pAttach.isNull())
2513	return setError(VBOX_E_OBJECT_NOT_FOUND,
2514	tr("No storage device attached to device slot %d on port %d of controller '%ls'"),
2515	aDevice, aControllerPort, aControllerName);
2516
2517	pAttach->medium().queryInterfaceTo(aMedium);
2518
2519	return S_OK;
2520	}
2521
2522	STDMETHODIMP Machine::GetSerialPort (ULONG slot, ISerialPort **port)
2523	{
2524	CheckComArgOutPointerValid(port);
2525	CheckComArgExpr (slot, slot < RT_ELEMENTS (mSerialPorts));
2526
2527	AutoCaller autoCaller(this);
2528	CheckComRCReturnRC(autoCaller.rc());
2529
2530	AutoReadLock alock(this);
2531
2532	mSerialPorts [slot].queryInterfaceTo(port);
2533
2534	return S_OK;
2535	}
2536
2537	STDMETHODIMP Machine::GetParallelPort (ULONG slot, IParallelPort **port)
2538	{
2539	CheckComArgOutPointerValid(port);
2540	CheckComArgExpr (slot, slot < RT_ELEMENTS (mParallelPorts));
2541
2542	AutoCaller autoCaller(this);
2543	CheckComRCReturnRC(autoCaller.rc());
2544
2545	AutoReadLock alock(this);
2546
2547	mParallelPorts [slot].queryInterfaceTo(port);
2548
2549	return S_OK;
2550	}
2551
2552	STDMETHODIMP Machine::GetNetworkAdapter (ULONG slot, INetworkAdapter **adapter)
2553	{
2554	CheckComArgOutPointerValid(adapter);
2555	CheckComArgExpr (slot, slot < RT_ELEMENTS (mNetworkAdapters));
2556
2557	AutoCaller autoCaller(this);
2558	CheckComRCReturnRC(autoCaller.rc());
2559
2560	AutoReadLock alock(this);
2561
2562	mNetworkAdapters[slot].queryInterfaceTo(adapter);
2563
2564	return S_OK;
2565	}
2566
2567	STDMETHODIMP Machine::GetExtraDataKeys(ComSafeArrayOut(BSTR, aKeys))
2568	{
2569	if (ComSafeArrayOutIsNull(aKeys))
2570	return E_POINTER;
2571
2572	AutoCaller autoCaller (this);
2573	CheckComRCReturnRC (autoCaller.rc());
2574
2575	AutoReadLock alock (this);
2576
2577	com::SafeArray<BSTR> saKeys(mData->m_pMachineConfigFile->mapExtraDataItems.size());
2578	int i = 0;
2579	for (settings::ExtraDataItemsMap::const_iterator it = mData->m_pMachineConfigFile->mapExtraDataItems.begin();
2580	it != mData->m_pMachineConfigFile->mapExtraDataItems.end();
2581	++it, ++i)
2582	{
2583	const Utf8Str &strKey = it->first;
2584	strKey.cloneTo(&saKeys[i]);
2585	}
2586	saKeys.detachTo(ComSafeArrayOutArg(aKeys));
2587
2588	return S_OK;
2589	}
2590
2591	/**
2592	* @note Locks this object for reading.
2593	*/
2594	STDMETHODIMP Machine::GetExtraData(IN_BSTR aKey,
2595	BSTR *aValue)
2596	{
2597	CheckComArgNotNull(aKey);
2598	CheckComArgOutPointerValid(aValue);
2599
2600	AutoCaller autoCaller (this);
2601	CheckComRCReturnRC (autoCaller.rc());
2602
2603	/* start with nothing found */
2604	Bstr("").cloneTo(aValue);
2605
2606	AutoReadLock alock (this);
2607
2608	settings::ExtraDataItemsMap::const_iterator it = mData->m_pMachineConfigFile->mapExtraDataItems.find(Utf8Str(aKey));
2609	if (it != mData->m_pMachineConfigFile->mapExtraDataItems.end())
2610	{
2611	// found:
2612	const Utf8Str &strValue = it->second;
2613	strValue.cloneTo(aValue);
2614	}
2615
2616	return S_OK;
2617	}
2618
2619	/**
2620	* @note Locks mParent for writing + this object for writing.
2621	*/
2622	STDMETHODIMP Machine::SetExtraData(IN_BSTR aKey, IN_BSTR aValue)
2623	{
2624	CheckComArgNotNull(aKey);
2625
2626	AutoCaller autoCaller(this);
2627	CheckComRCReturnRC (autoCaller.rc());
2628
2629	Utf8Str strKey(aKey);
2630	Utf8Str strValue(aValue);
2631	Utf8Str strOldValue; // empty
2632
2633	// locking note: we only hold the read lock briefly to look up the old value,
2634	// then release it and call the onExtraCanChange callbacks. There is a small
2635	// chance of a race insofar as the callback might be called twice if two callers
2636	// change the same key at the same time, but that's a much better solution
2637	// than the deadlock we had here before. The actual changing of the extradata
2638	// is then performed under the write lock and race-free.
2639
2640	// look up the old value first; if nothing's changed then we need not do anything
2641	{
2642	AutoReadLock alock(this); // hold read lock only while looking up
2643	settings::ExtraDataItemsMap::const_iterator it = mData->m_pMachineConfigFile->mapExtraDataItems.find(strKey);
2644	if (it != mData->m_pMachineConfigFile->mapExtraDataItems.end())
2645	strOldValue = it->second;
2646	}
2647
2648	bool fChanged;
2649	if ((fChanged = (strOldValue != strValue)))
2650	{
2651	// ask for permission from all listeners outside the locks;
2652	// onExtraDataCanChange() only briefly requests the VirtualBox
2653	// lock to copy the list of callbacks to invoke
2654	Bstr error;
2655	Bstr bstrValue;
2656	if (aValue)
2657	bstrValue = aValue;
2658	else
2659	bstrValue = (const char *)"";
2660
2661	if (!mParent->onExtraDataCanChange(mData->mUuid, aKey, bstrValue, error))
2662	{
2663	const char *sep = error.isEmpty() ? "" : ": ";
2664	CBSTR err = error.isNull() ? (CBSTR) L"" : error.raw();
2665	LogWarningFunc(("Someone vetoed! Change refused%s%ls\n",
2666	sep, err));
2667	return setError(E_ACCESSDENIED,
2668	tr("Could not set extra data because someone refused the requested change of '%ls' to '%ls'%s%ls"),
2669	aKey,
2670	bstrValue.raw(),
2671	sep,
2672	err);
2673	}
2674
2675	// data is changing and change not vetoed: then write it out under the locks
2676
2677	// saveSettings() needs VirtualBox write lock
2678	AutoMultiWriteLock2 alock(mParent, this);
2679
2680	if (mType == IsSnapshotMachine)
2681	{
2682	HRESULT rc = checkStateDependency(MutableStateDep);
2683	CheckComRCReturnRC (rc);
2684	}
2685
2686	if (strValue.isEmpty())
2687	mData->m_pMachineConfigFile->mapExtraDataItems.erase(strKey);
2688	else
2689	mData->m_pMachineConfigFile->mapExtraDataItems[strKey] = strValue;
2690	// creates a new key if needed
2691
2692	/* save settings on success */
2693	HRESULT rc = saveSettings();
2694	CheckComRCReturnRC (rc);
2695	}
2696
2697	// fire notification outside the lock
2698	if (fChanged)
2699	mParent->onExtraDataChange(mData->mUuid, aKey, aValue);
2700
2701	return S_OK;
2702	}
2703
2704	STDMETHODIMP Machine::SaveSettings()
2705	{
2706	AutoCaller autoCaller(this);
2707	CheckComRCReturnRC(autoCaller.rc());
2708
2709	/* saveSettings() needs mParent lock */
2710	AutoMultiWriteLock2 alock(mParent, this);
2711
2712	/* when there was auto-conversion, we want to save the file even if
2713	* the VM is saved */
2714	HRESULT rc = checkStateDependency(MutableStateDep);
2715	CheckComRCReturnRC(rc);
2716
2717	/* the settings file path may never be null */
2718	ComAssertRet(!mData->m_strConfigFileFull.isEmpty(), E_FAIL);
2719
2720	/* save all VM data excluding snapshots */
2721	return saveSettings();
2722	}
2723
2724	STDMETHODIMP Machine::DiscardSettings()
2725	{
2726	AutoCaller autoCaller(this);
2727	CheckComRCReturnRC(autoCaller.rc());
2728
2729	AutoWriteLock alock(this);
2730
2731	HRESULT rc = checkStateDependency(MutableStateDep);
2732	CheckComRCReturnRC(rc);
2733
2734	/*
2735	* during this rollback, the session will be notified if data has
2736	* been actually changed
2737	*/
2738	rollback (true /* aNotify */);
2739
2740	return S_OK;
2741	}
2742
2743	STDMETHODIMP Machine::DeleteSettings()
2744	{
2745	AutoCaller autoCaller(this);
2746	CheckComRCReturnRC(autoCaller.rc());
2747
2748	AutoWriteLock alock(this);
2749
2750	HRESULT rc = checkStateDependency(MutableStateDep);
2751	CheckComRCReturnRC(rc);
2752
2753	if (mData->mRegistered)
2754	return setError(VBOX_E_INVALID_VM_STATE,
2755	tr("Cannot delete settings of a registered machine"));
2756
2757	/* delete the settings only when the file actually exists */
2758	if (mData->m_pMachineConfigFile->fileExists())
2759	{
2760	int vrc = RTFileDelete(mData->m_strConfigFileFull.c_str());
2761	if (RT_FAILURE(vrc))
2762	return setError(VBOX_E_IPRT_ERROR,
2763	tr("Could not delete the settings file '%s' (%Rrc)"),
2764	mData->m_strConfigFileFull.raw(),
2765	vrc);
2766
2767	/* delete the Logs folder, nothing important should be left
2768	* there (we don't check for errors because the user might have
2769	* some private files there that we don't want to delete) */
2770	Utf8Str logFolder;
2771	getLogFolder(logFolder);
2772	Assert(logFolder.length());
2773	if (RTDirExists(logFolder.c_str()))
2774	{
2775	/* Delete all VBox.log[.N] files from the Logs folder
2776	* (this must be in sync with the rotation logic in
2777	* Console::powerUpThread()). Also, delete the VBox.png[.N]
2778	* files that may have been created by the GUI. */
2779	Utf8Str log = Utf8StrFmt("%s/VBox.log", logFolder.raw());
2780	RTFileDelete(log.c_str());
2781	log = Utf8StrFmt("%s/VBox.png", logFolder.raw());
2782	RTFileDelete(log.c_str());
2783	for (int i = 3; i >= 0; i--)
2784	{
2785	log = Utf8StrFmt("%s/VBox.log.%d", logFolder.raw(), i);
2786	RTFileDelete(log.c_str());
2787	log = Utf8StrFmt("%s/VBox.png.%d", logFolder.raw(), i);
2788	RTFileDelete(log.c_str());
2789	}
2790
2791	RTDirRemove(logFolder.c_str());
2792	}
2793
2794	/* delete the Snapshots folder, nothing important should be left
2795	* there (we don't check for errors because the user might have
2796	* some private files there that we don't want to delete) */
2797	Utf8Str snapshotFolder(mUserData->mSnapshotFolderFull);
2798	Assert(snapshotFolder.length());
2799	if (RTDirExists(snapshotFolder.c_str()))
2800	RTDirRemove(snapshotFolder.c_str());
2801
2802	/* delete the directory that contains the settings file, but only
2803	* if it matches the VM name (i.e. a structure created by default in
2804	* prepareSaveSettings()) */
2805	{
2806	Utf8Str settingsDir;
2807	if (isInOwnDir(&settingsDir))
2808	RTDirRemove(settingsDir.c_str());
2809	}
2810	}
2811
2812	return S_OK;
2813	}
2814
2815	STDMETHODIMP Machine::GetSnapshot (IN_BSTR aId, ISnapshot **aSnapshot)
2816	{
2817	CheckComArgOutPointerValid(aSnapshot);
2818
2819	AutoCaller autoCaller(this);
2820	CheckComRCReturnRC(autoCaller.rc());
2821
2822	AutoReadLock alock(this);
2823
2824	Guid id(aId);
2825	ComObjPtr<Snapshot> snapshot;
2826
2827	HRESULT rc = findSnapshot (id, snapshot, true /* aSetError */);
2828	snapshot.queryInterfaceTo(aSnapshot);
2829
2830	return rc;
2831	}
2832
2833	STDMETHODIMP Machine::FindSnapshot (IN_BSTR aName, ISnapshot **aSnapshot)
2834	{
2835	CheckComArgNotNull (aName);
2836	CheckComArgOutPointerValid(aSnapshot);
2837
2838	AutoCaller autoCaller(this);
2839	CheckComRCReturnRC(autoCaller.rc());
2840
2841	AutoReadLock alock(this);
2842
2843	ComObjPtr<Snapshot> snapshot;
2844
2845	HRESULT rc = findSnapshot (aName, snapshot, true /* aSetError */);
2846	snapshot.queryInterfaceTo(aSnapshot);
2847
2848	return rc;
2849	}
2850
2851	STDMETHODIMP Machine::SetCurrentSnapshot (IN_BSTR /* aId */)
2852	{
2853	/// @todo (dmik) don't forget to set
2854	// mData->mCurrentStateModified to FALSE
2855
2856	return setError (E_NOTIMPL, "Not implemented");
2857	}
2858
2859	STDMETHODIMP Machine::CreateSharedFolder (IN_BSTR aName, IN_BSTR aHostPath, BOOL aWritable)
2860	{
2861	CheckComArgNotNull(aName);
2862	CheckComArgNotNull(aHostPath);
2863
2864	AutoCaller autoCaller(this);
2865	CheckComRCReturnRC(autoCaller.rc());
2866
2867	AutoWriteLock alock(this);
2868
2869	HRESULT rc = checkStateDependency(MutableStateDep);
2870	CheckComRCReturnRC(rc);
2871
2872	ComObjPtr<SharedFolder> sharedFolder;
2873	rc = findSharedFolder (aName, sharedFolder, false /* aSetError */);
2874	if (SUCCEEDED(rc))
2875	return setError(VBOX_E_OBJECT_IN_USE,
2876	tr("Shared folder named '%ls' already exists"),
2877	aName);
2878
2879	sharedFolder.createObject();
2880	rc = sharedFolder->init (machine(), aName, aHostPath, aWritable);
2881	CheckComRCReturnRC(rc);
2882
2883	mHWData.backup();
2884	mHWData->mSharedFolders.push_back (sharedFolder);
2885
2886	/* inform the direct session if any */
2887	alock.leave();
2888	onSharedFolderChange();
2889
2890	return S_OK;
2891	}
2892
2893	STDMETHODIMP Machine::RemoveSharedFolder (IN_BSTR aName)
2894	{
2895	CheckComArgNotNull (aName);
2896
2897	AutoCaller autoCaller(this);
2898	CheckComRCReturnRC(autoCaller.rc());
2899
2900	AutoWriteLock alock(this);
2901
2902	HRESULT rc = checkStateDependency(MutableStateDep);
2903	CheckComRCReturnRC(rc);
2904
2905	ComObjPtr<SharedFolder> sharedFolder;
2906	rc = findSharedFolder (aName, sharedFolder, true /* aSetError */);
2907	CheckComRCReturnRC(rc);
2908
2909	mHWData.backup();
2910	mHWData->mSharedFolders.remove (sharedFolder);
2911
2912	/* inform the direct session if any */
2913	alock.leave();
2914	onSharedFolderChange();
2915
2916	return S_OK;
2917	}
2918
2919	STDMETHODIMP Machine::CanShowConsoleWindow (BOOL *aCanShow)
2920	{
2921	CheckComArgOutPointerValid(aCanShow);
2922
2923	/* start with No */
2924	*aCanShow = FALSE;
2925
2926	AutoCaller autoCaller(this);
2927	AssertComRCReturnRC(autoCaller.rc());
2928
2929	ComPtr<IInternalSessionControl> directControl;
2930	{
2931	AutoReadLock alock(this);
2932
2933	if (mData->mSession.mState != SessionState_Open)
2934	return setError(VBOX_E_INVALID_VM_STATE,
2935	tr("Machine session is not open (session state: %d)"),
2936	mData->mSession.mState);
2937
2938	directControl = mData->mSession.mDirectControl;
2939	}
2940
2941	/* ignore calls made after #OnSessionEnd() is called */
2942	if (!directControl)
2943	return S_OK;
2944
2945	ULONG64 dummy;
2946	return directControl->OnShowWindow (TRUE /* aCheck */, aCanShow, &dummy);
2947	}
2948
2949	STDMETHODIMP Machine::ShowConsoleWindow (ULONG64 *aWinId)
2950	{
2951	CheckComArgOutPointerValid(aWinId);
2952
2953	AutoCaller autoCaller(this);
2954	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
2955
2956	ComPtr<IInternalSessionControl> directControl;
2957	{
2958	AutoReadLock alock(this);
2959
2960	if (mData->mSession.mState != SessionState_Open)
2961	return setError(E_FAIL,
2962	tr("Machine session is not open (session state: %d)"),
2963	mData->mSession.mState);
2964
2965	directControl = mData->mSession.mDirectControl;
2966	}
2967
2968	/* ignore calls made after #OnSessionEnd() is called */
2969	if (!directControl)
2970	return S_OK;
2971
2972	BOOL dummy;
2973	return directControl->OnShowWindow (FALSE /* aCheck */, &dummy, aWinId);
2974	}
2975
2976	STDMETHODIMP Machine::GetGuestProperty(IN_BSTR aName,
2977	BSTR *aValue,
2978	ULONG64 *aTimestamp,
2979	BSTR *aFlags)
2980	{
2981	#if !defined (VBOX_WITH_GUEST_PROPS)
2982	ReturnComNotImplemented();
2983	#else
2984	CheckComArgNotNull(aName);
2985	CheckComArgOutPointerValid(aValue);
2986	CheckComArgOutPointerValid(aTimestamp);
2987	CheckComArgOutPointerValid(aFlags);
2988
2989	AutoCaller autoCaller(this);
2990	CheckComRCReturnRC(autoCaller.rc());
2991
2992	AutoReadLock alock(this);
2993
2994	using namespace guestProp;
2995	HRESULT rc = E_FAIL;
2996
2997	Utf8Str strName(aName);
2998
2999	if (!mHWData->mPropertyServiceActive)
3000	{
3001	bool found = false;
3002	for (HWData::GuestPropertyList::const_iterator it = mHWData->mGuestProperties.begin();
3003	(it != mHWData->mGuestProperties.end()) && !found;
3004	++it)
3005	{
3006	if (it->strName == strName)
3007	{
3008	char szFlags[MAX_FLAGS_LEN + 1];
3009	it->strValue.cloneTo(aValue);
3010	*aTimestamp = it->mTimestamp;
3011	writeFlags(it->mFlags, szFlags);
3012	Bstr(szFlags).cloneTo(aFlags);
3013	found = true;
3014	}
3015	}
3016	rc = S_OK;
3017	}
3018	else
3019	{
3020	ComPtr<IInternalSessionControl> directControl =
3021	mData->mSession.mDirectControl;
3022
3023	/* just be on the safe side when calling another process */
3024	alock.unlock();
3025
3026	/* fail if we were called after #OnSessionEnd() is called. This is a
3027	* silly race condition. */
3028
3029	if (!directControl)
3030	rc = E_FAIL;
3031	else
3032	rc = directControl->AccessGuestProperty (aName, NULL, NULL,
3033	false /* isSetter */,
3034	aValue, aTimestamp, aFlags);
3035	}
3036	return rc;
3037	#endif /* else !defined (VBOX_WITH_GUEST_PROPS) */
3038	}
3039
3040	STDMETHODIMP Machine::GetGuestPropertyValue (IN_BSTR aName, BSTR *aValue)
3041	{
3042	ULONG64 dummyTimestamp;
3043	BSTR dummyFlags;
3044	return GetGuestProperty (aName, aValue, &dummyTimestamp, &dummyFlags);
3045	}
3046
3047	STDMETHODIMP Machine::GetGuestPropertyTimestamp (IN_BSTR aName, ULONG64 *aTimestamp)
3048	{
3049	BSTR dummyValue;
3050	BSTR dummyFlags;
3051	return GetGuestProperty (aName, &dummyValue, aTimestamp, &dummyFlags);
3052	}
3053
3054	STDMETHODIMP Machine::SetGuestProperty(IN_BSTR aName,
3055	IN_BSTR aValue,
3056	IN_BSTR aFlags)
3057	{
3058	#if !defined (VBOX_WITH_GUEST_PROPS)
3059	ReturnComNotImplemented();
3060	#else
3061	using namespace guestProp;
3062
3063	CheckComArgNotNull(aName);
3064	CheckComArgNotNull(aValue);
3065	if ((aFlags != NULL) && !VALID_PTR (aFlags))
3066	return E_INVALIDARG;
3067
3068	HRESULT rc = S_OK;
3069
3070	try
3071	{
3072	Utf8Str utf8Name(aName);
3073	Utf8Str utf8Flags(aFlags);
3074	Utf8Str utf8Patterns(mHWData->mGuestPropertyNotificationPatterns);
3075
3076	bool matchAll = false;
3077	if (utf8Patterns.isEmpty())
3078	matchAll = true;
3079
3080	uint32_t fFlags = NILFLAG;
3081	if ( (aFlags != NULL)
3082	&& RT_FAILURE(validateFlags (utf8Flags.raw(), &fFlags))
3083	)
3084	return setError(E_INVALIDARG,
3085	tr("Invalid flag values: '%ls'"),
3086	aFlags);
3087
3088	AutoCaller autoCaller(this);
3089	CheckComRCReturnRC(autoCaller.rc());
3090
3091	AutoWriteLock alock(this);
3092
3093	rc = checkStateDependency(MutableStateDep);
3094	CheckComRCReturnRC(rc);
3095
3096	rc = S_OK;
3097
3098	if (!mHWData->mPropertyServiceActive)
3099	{
3100	bool found = false;
3101	HWData::GuestProperty property;
3102	property.mFlags = NILFLAG;
3103
3104	if (SUCCEEDED(rc))
3105	{
3106	for (HWData::GuestPropertyList::iterator it = mHWData->mGuestProperties.begin();
3107	it != mHWData->mGuestProperties.end();
3108	++it)
3109	if (it->strName == utf8Name)
3110	{
3111	property = *it;
3112	if (it->mFlags & (RDONLYHOST))
3113	rc = setError(E_ACCESSDENIED,
3114	tr("The property '%ls' cannot be changed by the host"),
3115	aName);
3116	else
3117	{
3118	mHWData.backup();
3119	/* The backup() operation invalidates our iterator, so
3120	* get a new one. */
3121	for (it = mHWData->mGuestProperties.begin();
3122	it->strName != utf8Name;
3123	++it)
3124	;
3125	mHWData->mGuestProperties.erase (it);
3126	}
3127	found = true;
3128	break;
3129	}
3130	}
3131	if (found && SUCCEEDED(rc))
3132	{
3133	if (*aValue)
3134	{
3135	RTTIMESPEC time;
3136	property.strValue = aValue;
3137	property.mTimestamp = RTTimeSpecGetNano(RTTimeNow(&time));
3138	if (aFlags != NULL)
3139	property.mFlags = fFlags;
3140	mHWData->mGuestProperties.push_back (property);
3141	}
3142	}
3143	else if (SUCCEEDED(rc) && *aValue)
3144	{
3145	RTTIMESPEC time;
3146	mHWData.backup();
3147	property.strName = aName;
3148	property.strValue = aValue;
3149	property.mTimestamp = RTTimeSpecGetNano(RTTimeNow(&time));
3150	property.mFlags = fFlags;
3151	mHWData->mGuestProperties.push_back (property);
3152	}
3153	if ( SUCCEEDED(rc)
3154	&& ( matchAll
3155	\|\| RTStrSimplePatternMultiMatch (utf8Patterns.raw(), RTSTR_MAX,
3156	utf8Name.raw(), RTSTR_MAX, NULL)
3157	)
3158	)
3159	mParent->onGuestPropertyChange (mData->mUuid, aName, aValue, aFlags);
3160	}
3161	else
3162	{
3163	ComPtr<IInternalSessionControl> directControl =
3164	mData->mSession.mDirectControl;
3165
3166	/* just be on the safe side when calling another process */
3167	alock.leave();
3168
3169	BSTR dummy = NULL;
3170	ULONG64 dummy64;
3171	if (!directControl)
3172	rc = E_FAIL;
3173	else
3174	rc = directControl->AccessGuestProperty(aName, aValue, aFlags,
3175	true /* isSetter */,
3176	&dummy, &dummy64, &dummy);
3177	}
3178	}
3179	catch (std::bad_alloc &)
3180	{
3181	rc = E_OUTOFMEMORY;
3182	}
3183
3184	return rc;
3185	#endif /* else !defined (VBOX_WITH_GUEST_PROPS) */
3186	}
3187
3188	STDMETHODIMP Machine::SetGuestPropertyValue (IN_BSTR aName, IN_BSTR aValue)
3189	{
3190	return SetGuestProperty (aName, aValue, NULL);
3191	}
3192
3193	STDMETHODIMP Machine::EnumerateGuestProperties(IN_BSTR aPatterns,
3194	ComSafeArrayOut(BSTR, aNames),
3195	ComSafeArrayOut(BSTR, aValues),
3196	ComSafeArrayOut(ULONG64, aTimestamps),
3197	ComSafeArrayOut(BSTR, aFlags))
3198	{
3199	#if !defined (VBOX_WITH_GUEST_PROPS)
3200	ReturnComNotImplemented();
3201	#else
3202	if (!VALID_PTR (aPatterns) && (aPatterns != NULL))
3203	return E_POINTER;
3204
3205	CheckComArgOutSafeArrayPointerValid(aNames);
3206	CheckComArgOutSafeArrayPointerValid(aValues);
3207	CheckComArgOutSafeArrayPointerValid(aTimestamps);
3208	CheckComArgOutSafeArrayPointerValid(aFlags);
3209
3210	AutoCaller autoCaller(this);
3211	CheckComRCReturnRC(autoCaller.rc());
3212
3213	AutoReadLock alock(this);
3214
3215	using namespace guestProp;
3216	HRESULT rc = E_FAIL;
3217
3218	Utf8Str strPatterns(aPatterns);
3219
3220	bool matchAll = false;
3221	if ((NULL == aPatterns) \|\| (0 == aPatterns[0]))
3222	matchAll = true;
3223	if (!mHWData->mPropertyServiceActive)
3224	{
3225
3226	/*
3227	* Look for matching patterns and build up a list.
3228	*/
3229	HWData::GuestPropertyList propList;
3230	for (HWData::GuestPropertyList::iterator it = mHWData->mGuestProperties.begin();
3231	it != mHWData->mGuestProperties.end();
3232	++it)
3233	if ( matchAll
3234	\|\| RTStrSimplePatternMultiMatch(strPatterns.raw(),
3235	RTSTR_MAX,
3236	it->strName.raw(),
3237	RTSTR_MAX, NULL)
3238	)
3239	propList.push_back(*it);
3240
3241	/*
3242	* And build up the arrays for returning the property information.
3243	*/
3244	size_t cEntries = propList.size();
3245	SafeArray<BSTR> names (cEntries);
3246	SafeArray<BSTR> values (cEntries);
3247	SafeArray<ULONG64> timestamps (cEntries);
3248	SafeArray<BSTR> flags (cEntries);
3249	size_t iProp = 0;
3250	for (HWData::GuestPropertyList::iterator it = propList.begin();
3251	it != propList.end();
3252	++it)
3253	{
3254	char szFlags[MAX_FLAGS_LEN + 1];
3255	it->strName.cloneTo(&names[iProp]);
3256	it->strValue.cloneTo(&values[iProp]);
3257	timestamps[iProp] = it->mTimestamp;
3258	writeFlags(it->mFlags, szFlags);
3259	Bstr(szFlags).cloneTo(&flags[iProp]);
3260	++iProp;
3261	}
3262	names.detachTo(ComSafeArrayOutArg(aNames));
3263	values.detachTo(ComSafeArrayOutArg(aValues));
3264	timestamps.detachTo(ComSafeArrayOutArg(aTimestamps));
3265	flags.detachTo(ComSafeArrayOutArg(aFlags));
3266	rc = S_OK;
3267	}
3268	else
3269	{
3270	ComPtr<IInternalSessionControl> directControl = mData->mSession.mDirectControl;
3271
3272	/* just be on the safe side when calling another process */
3273	alock.unlock();
3274
3275	if (!directControl)
3276	rc = E_FAIL;
3277	else
3278	rc = directControl->EnumerateGuestProperties(aPatterns,
3279	ComSafeArrayOutArg(aNames),
3280	ComSafeArrayOutArg(aValues),
3281	ComSafeArrayOutArg(aTimestamps),
3282	ComSafeArrayOutArg(aFlags));
3283	}
3284	return rc;
3285	#endif /* else !defined (VBOX_WITH_GUEST_PROPS) */
3286	}
3287
3288	STDMETHODIMP Machine::GetMediumAttachmentsOfController(IN_BSTR aName,
3289	ComSafeArrayOut(IMediumAttachment*, aAttachments))
3290	{
3291	MediaData::AttachmentList atts;
3292
3293	HRESULT rc = getMediumAttachmentsOfController(aName, atts);
3294	CheckComRCReturnRC(rc);
3295
3296	SafeIfaceArray<IMediumAttachment> attachments(atts);
3297	attachments.detachTo(ComSafeArrayOutArg(aAttachments));
3298
3299	return S_OK;
3300	}
3301
3302	STDMETHODIMP Machine::GetMediumAttachment(IN_BSTR aControllerName,
3303	LONG aControllerPort,
3304	LONG aDevice,
3305	IMediumAttachment **aAttachment)
3306	{
3307	LogFlowThisFunc(("aControllerName=\"%ls\" aControllerPort=%d aDevice=%d\n",
3308	aControllerName, aControllerPort, aDevice));
3309
3310	CheckComArgNotNull(aControllerName);
3311	CheckComArgOutPointerValid(aAttachment);
3312
3313	AutoCaller autoCaller(this);
3314	CheckComRCReturnRC(autoCaller.rc());
3315
3316	AutoReadLock alock(this);
3317
3318	*aAttachment = NULL;
3319
3320	ComObjPtr<MediumAttachment> pAttach = findAttachment(mMediaData->mAttachments,
3321	aControllerName,
3322	aControllerPort,
3323	aDevice);
3324	if (pAttach.isNull())
3325	return setError(VBOX_E_OBJECT_NOT_FOUND,
3326	tr("No storage device attached to device slot %d on port %d of controller '%ls'"),
3327	aDevice, aControllerPort, aControllerName);
3328
3329	pAttach.queryInterfaceTo(aAttachment);
3330
3331	return S_OK;
3332	}
3333
3334	STDMETHODIMP Machine::AddStorageController(IN_BSTR aName,
3335	StorageBus_T aConnectionType,
3336	IStorageController **controller)
3337	{
3338	CheckComArgStrNotEmptyOrNull(aName);
3339
3340	if ( (aConnectionType <= StorageBus_Null)
3341	\|\| (aConnectionType > StorageBus_Floppy))
3342	return setError (E_INVALIDARG,
3343	tr ("Invalid connection type: %d"),
3344	aConnectionType);
3345
3346	AutoCaller autoCaller(this);
3347	CheckComRCReturnRC(autoCaller.rc());
3348
3349	AutoWriteLock alock(this);
3350
3351	HRESULT rc = checkStateDependency(MutableStateDep);
3352	CheckComRCReturnRC(rc);
3353
3354	/* try to find one with the name first. */
3355	ComObjPtr<StorageController> ctrl;
3356
3357	rc = getStorageControllerByName (aName, ctrl, false /* aSetError */);
3358	if (SUCCEEDED(rc))
3359	return setError (VBOX_E_OBJECT_IN_USE,
3360	tr ("Storage controller named '%ls' already exists"), aName);
3361
3362	ctrl.createObject();
3363	rc = ctrl->init (this, aName, aConnectionType);
3364	CheckComRCReturnRC(rc);
3365
3366	mStorageControllers.backup();
3367	mStorageControllers->push_back (ctrl);
3368
3369	ctrl.queryInterfaceTo(controller);
3370
3371	/* inform the direct session if any */
3372	alock.leave();
3373	onStorageControllerChange();
3374
3375	return S_OK;
3376	}
3377
3378	STDMETHODIMP Machine::GetStorageControllerByName(IN_BSTR aName,
3379	IStorageController **aStorageController)
3380	{
3381	CheckComArgStrNotEmptyOrNull(aName);
3382
3383	AutoCaller autoCaller(this);
3384	CheckComRCReturnRC(autoCaller.rc());
3385
3386	AutoReadLock alock(this);
3387
3388	ComObjPtr<StorageController> ctrl;
3389
3390	HRESULT rc = getStorageControllerByName (aName, ctrl, true /* aSetError */);
3391	if (SUCCEEDED(rc))
3392	ctrl.queryInterfaceTo(aStorageController);
3393
3394	return rc;
3395	}
3396
3397	STDMETHODIMP Machine::RemoveStorageController(IN_BSTR aName)
3398	{
3399	CheckComArgStrNotEmptyOrNull(aName);
3400
3401	AutoCaller autoCaller(this);
3402	CheckComRCReturnRC(autoCaller.rc());
3403
3404	AutoWriteLock alock(this);
3405
3406	HRESULT rc = checkStateDependency(MutableStateDep);
3407	CheckComRCReturnRC(rc);
3408
3409	ComObjPtr<StorageController> ctrl;
3410	rc = getStorageControllerByName (aName, ctrl, true /* aSetError */);
3411	CheckComRCReturnRC(rc);
3412
3413	/* We can remove the controller only if there is no device attached. */
3414	/* check if the device slot is already busy */
3415	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
3416	it != mMediaData->mAttachments.end();
3417	++it)
3418	{
3419	if ((*it)->controller() == aName)
3420	return setError(VBOX_E_OBJECT_IN_USE,
3421	tr("Storage controller named '%ls' has still devices attached"),
3422	aName);
3423	}
3424
3425	/* We can remove it now. */
3426	mStorageControllers.backup();
3427
3428	ctrl->unshare();
3429
3430	mStorageControllers->remove (ctrl);
3431
3432	/* inform the direct session if any */
3433	alock.leave();
3434	onStorageControllerChange();
3435
3436	return S_OK;
3437	}
3438
3439	// public methods for internal purposes
3440	/////////////////////////////////////////////////////////////////////////////
3441
3442	/**
3443	* Saves the registry entry of this machine to the given configuration node.
3444	*
3445	* @param aEntryNode Node to save the registry entry to.
3446	*
3447	* @note locks this object for reading.
3448	*/
3449	HRESULT Machine::saveRegistryEntry(settings::MachineRegistryEntry &data)
3450	{
3451	AutoLimitedCaller autoCaller(this);
3452	AssertComRCReturnRC(autoCaller.rc());
3453
3454	AutoReadLock alock(this);
3455
3456	data.uuid = mData->mUuid;
3457	data.strSettingsFile = mData->m_strConfigFile;
3458
3459	return S_OK;
3460	}
3461
3462	/**
3463	* Calculates the absolute path of the given path taking the directory of the
3464	* machine settings file as the current directory.
3465	*
3466	* @param aPath Path to calculate the absolute path for.
3467	* @param aResult Where to put the result (used only on success, can be the
3468	* same Utf8Str instance as passed in @a aPath).
3469	* @return IPRT result.
3470	*
3471	* @note Locks this object for reading.
3472	*/
3473	int Machine::calculateFullPath(const Utf8Str &strPath, Utf8Str &aResult)
3474	{
3475	AutoCaller autoCaller(this);
3476	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
3477
3478	AutoReadLock alock(this);
3479
3480	AssertReturn (!mData->m_strConfigFileFull.isEmpty(), VERR_GENERAL_FAILURE);
3481
3482	Utf8Str strSettingsDir = mData->m_strConfigFileFull;
3483
3484	strSettingsDir.stripFilename();
3485	char folder[RTPATH_MAX];
3486	int vrc = RTPathAbsEx(strSettingsDir.c_str(), strPath.c_str(), folder, sizeof(folder));
3487	if (RT_SUCCESS(vrc))
3488	aResult = folder;
3489
3490	return vrc;
3491	}
3492
3493	/**
3494	* Tries to calculate the relative path of the given absolute path using the
3495	* directory of the machine settings file as the base directory.
3496	*
3497	* @param aPath Absolute path to calculate the relative path for.
3498	* @param aResult Where to put the result (used only when it's possible to
3499	* make a relative path from the given absolute path; otherwise
3500	* left untouched).
3501	*
3502	* @note Locks this object for reading.
3503	*/
3504	void Machine::calculateRelativePath(const Utf8Str &strPath, Utf8Str &aResult)
3505	{
3506	AutoCaller autoCaller(this);
3507	AssertComRCReturn (autoCaller.rc(), (void) 0);
3508
3509	AutoReadLock alock(this);
3510
3511	AssertReturnVoid (!mData->m_strConfigFileFull.isEmpty());
3512
3513	Utf8Str settingsDir = mData->m_strConfigFileFull;
3514
3515	settingsDir.stripFilename();
3516	if (RTPathStartsWith(strPath.c_str(), settingsDir.c_str()))
3517	{
3518	/* when assigning, we create a separate Utf8Str instance because both
3519	* aPath and aResult can point to the same memory location when this
3520	* func is called (if we just do aResult = aPath, aResult will be freed
3521	* first, and since its the same as aPath, an attempt to copy garbage
3522	* will be made. */
3523	aResult = Utf8Str(strPath.c_str() + settingsDir.length() + 1);
3524	}
3525	}
3526
3527	/**
3528	* Returns the full path to the machine's log folder in the
3529	* \a aLogFolder argument.
3530	*/
3531	void Machine::getLogFolder (Utf8Str &aLogFolder)
3532	{
3533	AutoCaller autoCaller(this);
3534	AssertComRCReturnVoid (autoCaller.rc());
3535
3536	AutoReadLock alock(this);
3537
3538	Utf8Str settingsDir;
3539	if (isInOwnDir (&settingsDir))
3540	{
3541	/* Log folder is <Machines>/<VM_Name>/Logs */
3542	aLogFolder = Utf8StrFmt ("%s%cLogs", settingsDir.raw(), RTPATH_DELIMITER);
3543	}
3544	else
3545	{
3546	/* Log folder is <Machines>/<VM_SnapshotFolder>/Logs */
3547	Assert (!mUserData->mSnapshotFolderFull.isEmpty());
3548	aLogFolder = Utf8StrFmt ("%ls%cLogs", mUserData->mSnapshotFolderFull.raw(),
3549	RTPATH_DELIMITER);
3550	}
3551	}
3552
3553	/**
3554	* @note Locks this object for writing, calls the client process (outside the
3555	* lock).
3556	*/
3557	HRESULT Machine::openSession(IInternalSessionControl *aControl)
3558	{
3559	LogFlowThisFuncEnter();
3560
3561	AssertReturn(aControl, E_FAIL);
3562
3563	AutoCaller autoCaller(this);
3564	CheckComRCReturnRC(autoCaller.rc());
3565
3566	AutoWriteLock alock(this);
3567
3568	if (!mData->mRegistered)
3569	return setError(E_UNEXPECTED,
3570	tr("The machine '%ls' is not registered"),
3571	mUserData->mName.raw());
3572
3573	LogFlowThisFunc(("mSession.mState=%d\n", mData->mSession.mState));
3574
3575	if (mData->mSession.mState == SessionState_Open \|\|
3576	mData->mSession.mState == SessionState_Closing)
3577	return setError(VBOX_E_INVALID_OBJECT_STATE,
3578	tr("A session for the machine '%ls' is currently open (or being closed)"),
3579	mUserData->mName.raw());
3580
3581	/* may not be busy */
3582	AssertReturn(!Global::IsOnlineOrTransient (mData->mMachineState), E_FAIL);
3583
3584	/* get the session PID */
3585	RTPROCESS pid = NIL_RTPROCESS;
3586	AssertCompile (sizeof (ULONG) == sizeof (RTPROCESS));
3587	aControl->GetPID ((ULONG *) &pid);
3588	Assert (pid != NIL_RTPROCESS);
3589
3590	if (mData->mSession.mState == SessionState_Spawning)
3591	{
3592	/* This machine is awaiting for a spawning session to be opened, so
3593	* reject any other open attempts from processes other than one
3594	* started by #openRemoteSession(). */
3595
3596	LogFlowThisFunc(("mSession.mPid=%d(0x%x)\n",
3597	mData->mSession.mPid, mData->mSession.mPid));
3598	LogFlowThisFunc(("session.pid=%d(0x%x)\n", pid, pid));
3599
3600	if (mData->mSession.mPid != pid)
3601	return setError(E_ACCESSDENIED,
3602	tr("An unexpected process (PID=0x%08X) has tried to open a direct "
3603	"session with the machine named '%ls', while only a process "
3604	"started by OpenRemoteSession (PID=0x%08X) is allowed"),
3605	pid, mUserData->mName.raw(), mData->mSession.mPid);
3606	}
3607
3608	/* create a SessionMachine object */
3609	ComObjPtr<SessionMachine> sessionMachine;
3610	sessionMachine.createObject();
3611	HRESULT rc = sessionMachine->init (this);
3612	AssertComRC (rc);
3613
3614	/* NOTE: doing return from this function after this point but
3615	* before the end is forbidden since it may call SessionMachine::uninit()
3616	* (through the ComObjPtr's destructor) which requests the VirtualBox write
3617	* lock while still holding the Machine lock in alock so that a deadlock
3618	* is possible due to the wrong lock order. */
3619
3620	if (SUCCEEDED(rc))
3621	{
3622	#ifdef VBOX_WITH_RESOURCE_USAGE_API
3623	registerMetrics (mParent->performanceCollector(), this, pid);
3624	#endif /* VBOX_WITH_RESOURCE_USAGE_API */
3625
3626	/*
3627	* Set the session state to Spawning to protect against subsequent
3628	* attempts to open a session and to unregister the machine after
3629	* we leave the lock.
3630	*/
3631	SessionState_T origState = mData->mSession.mState;
3632	mData->mSession.mState = SessionState_Spawning;
3633
3634	/*
3635	* Leave the lock before calling the client process -- it will call
3636	* Machine/SessionMachine methods. Leaving the lock here is quite safe
3637	* because the state is Spawning, so that openRemotesession() and
3638	* openExistingSession() calls will fail. This method, called before we
3639	* enter the lock again, will fail because of the wrong PID.
3640	*
3641	* Note that mData->mSession.mRemoteControls accessed outside
3642	* the lock may not be modified when state is Spawning, so it's safe.
3643	*/
3644	alock.leave();
3645
3646	LogFlowThisFunc(("Calling AssignMachine()...\n"));
3647	rc = aControl->AssignMachine (sessionMachine);
3648	LogFlowThisFunc(("AssignMachine() returned %08X\n", rc));
3649
3650	/* The failure may occur w/o any error info (from RPC), so provide one */
3651	if (FAILED (rc))
3652	setError (VBOX_E_VM_ERROR,
3653	tr ("Failed to assign the machine to the session (%Rrc)"), rc);
3654
3655	if (SUCCEEDED(rc) && origState == SessionState_Spawning)
3656	{
3657	/* complete the remote session initialization */
3658
3659	/* get the console from the direct session */
3660	ComPtr<IConsole> console;
3661	rc = aControl->GetRemoteConsole (console.asOutParam());
3662	ComAssertComRC (rc);
3663
3664	if (SUCCEEDED(rc) && !console)
3665	{
3666	ComAssert (!!console);
3667	rc = E_FAIL;
3668	}
3669
3670	/* assign machine & console to the remote session */
3671	if (SUCCEEDED(rc))
3672	{
3673	/*
3674	* after openRemoteSession(), the first and the only
3675	* entry in remoteControls is that remote session
3676	*/
3677	LogFlowThisFunc(("Calling AssignRemoteMachine()...\n"));
3678	rc = mData->mSession.mRemoteControls.front()->
3679	AssignRemoteMachine (sessionMachine, console);
3680	LogFlowThisFunc(("AssignRemoteMachine() returned %08X\n", rc));
3681
3682	/* The failure may occur w/o any error info (from RPC), so provide one */
3683	if (FAILED(rc))
3684	setError(VBOX_E_VM_ERROR,
3685	tr("Failed to assign the machine to the remote session (%Rrc)"), rc);
3686	}
3687
3688	if (FAILED(rc))
3689	aControl->Uninitialize();
3690	}
3691
3692	/* enter the lock again */
3693	alock.enter();
3694
3695	/* Restore the session state */
3696	mData->mSession.mState = origState;
3697	}
3698
3699	/* finalize spawning anyway (this is why we don't return on errors above) */
3700	if (mData->mSession.mState == SessionState_Spawning)
3701	{
3702	/* Note that the progress object is finalized later */
3703
3704	/* We don't reset mSession.mPid here because it is necessary for
3705	* SessionMachine::uninit() to reap the child process later. */
3706
3707	if (FAILED(rc))
3708	{
3709	/* Close the remote session, remove the remote control from the list
3710	* and reset session state to Closed (@note keep the code in sync
3711	* with the relevant part in openSession()). */
3712
3713	Assert (mData->mSession.mRemoteControls.size() == 1);
3714	if (mData->mSession.mRemoteControls.size() == 1)
3715	{
3716	ErrorInfoKeeper eik;
3717	mData->mSession.mRemoteControls.front()->Uninitialize();
3718	}
3719
3720	mData->mSession.mRemoteControls.clear();
3721	mData->mSession.mState = SessionState_Closed;
3722	}
3723	}
3724	else
3725	{
3726	/* memorize PID of the directly opened session */
3727	if (SUCCEEDED(rc))
3728	mData->mSession.mPid = pid;
3729	}
3730
3731	if (SUCCEEDED(rc))
3732	{
3733	/* memorize the direct session control and cache IUnknown for it */
3734	mData->mSession.mDirectControl = aControl;
3735	mData->mSession.mState = SessionState_Open;
3736	/* associate the SessionMachine with this Machine */
3737	mData->mSession.mMachine = sessionMachine;
3738
3739	/* request an IUnknown pointer early from the remote party for later
3740	* identity checks (it will be internally cached within mDirectControl
3741	* at least on XPCOM) */
3742	ComPtr<IUnknown> unk = mData->mSession.mDirectControl;
3743	NOREF (unk);
3744	}
3745
3746	if (mData->mSession.mProgress)
3747	{
3748	/* finalize the progress after setting the state, for consistency */
3749	mData->mSession.mProgress->notifyComplete (rc);
3750	mData->mSession.mProgress.setNull();
3751	}
3752
3753	/* Leave the lock since SessionMachine::uninit() locks VirtualBox which
3754	* would break the lock order */
3755	alock.leave();
3756
3757	/* uninitialize the created session machine on failure */
3758	if (FAILED(rc))
3759	sessionMachine->uninit();
3760
3761	LogFlowThisFunc(("rc=%08X\n", rc));
3762	LogFlowThisFuncLeave();
3763	return rc;
3764	}
3765
3766	/**
3767	* @note Locks this object for writing, calls the client process
3768	* (inside the lock).
3769	*/
3770	HRESULT Machine::openRemoteSession(IInternalSessionControl *aControl,
3771	IN_BSTR aType,
3772	IN_BSTR aEnvironment,
3773	Progress *aProgress)
3774	{
3775	LogFlowThisFuncEnter();
3776
3777	AssertReturn(aControl, E_FAIL);
3778	AssertReturn(aProgress, E_FAIL);
3779
3780	AutoCaller autoCaller(this);
3781	CheckComRCReturnRC(autoCaller.rc());
3782
3783	AutoWriteLock alock(this);
3784
3785	if (!mData->mRegistered)
3786	return setError(E_UNEXPECTED,
3787	tr("The machine '%ls' is not registered"),
3788	mUserData->mName.raw());
3789
3790	LogFlowThisFunc(("mSession.mState=%d\n", mData->mSession.mState));
3791
3792	if (mData->mSession.mState == SessionState_Open \|\|
3793	mData->mSession.mState == SessionState_Spawning \|\|
3794	mData->mSession.mState == SessionState_Closing)
3795	return setError(VBOX_E_INVALID_OBJECT_STATE,
3796	tr("A session for the machine '%ls' is currently open (or being opened or closed)"),
3797	mUserData->mName.raw());
3798
3799	/* may not be busy */
3800	AssertReturn(!Global::IsOnlineOrTransient (mData->mMachineState), E_FAIL);
3801
3802	/* get the path to the executable */
3803	char szPath[RTPATH_MAX];
3804	RTPathAppPrivateArch(szPath, RTPATH_MAX);
3805	size_t sz = strlen(szPath);
3806	szPath[sz++] = RTPATH_DELIMITER;
3807	szPath[sz] = 0;
3808	char *cmd = szPath + sz;
3809	sz = RTPATH_MAX - sz;
3810
3811	int vrc = VINF_SUCCESS;
3812	RTPROCESS pid = NIL_RTPROCESS;
3813
3814	RTENV env = RTENV_DEFAULT;
3815
3816	if (aEnvironment != NULL && *aEnvironment)
3817	{
3818	char *newEnvStr = NULL;
3819
3820	do
3821	{
3822	/* clone the current environment */
3823	int vrc2 = RTEnvClone(&env, RTENV_DEFAULT);
3824	AssertRCBreakStmt(vrc2, vrc = vrc2);
3825
3826	newEnvStr = RTStrDup(Utf8Str(aEnvironment).c_str());
3827	AssertPtrBreakStmt(newEnvStr, vrc = vrc2);
3828
3829	/* put new variables to the environment
3830	* (ignore empty variable names here since RTEnv API
3831	* intentionally doesn't do that) */
3832	char *var = newEnvStr;
3833	for (char p = newEnvStr; p; ++p)
3834	{
3835	if (p == '\n' && (p == newEnvStr \|\| (p - 1) != '\\'))
3836	{
3837	*p = '\0';
3838	if (*var)
3839	{
3840	char *val = strchr (var, '=');
3841	if (val)
3842	{
3843	*val++ = '\0';
3844	vrc2 = RTEnvSetEx (env, var, val);
3845	}
3846	else
3847	vrc2 = RTEnvUnsetEx (env, var);
3848	if (RT_FAILURE(vrc2))
3849	break;
3850	}
3851	var = p + 1;
3852	}
3853	}
3854	if (RT_SUCCESS(vrc2) && *var)
3855	vrc2 = RTEnvPutEx (env, var);
3856
3857	AssertRCBreakStmt (vrc2, vrc = vrc2);
3858	}
3859	while (0);
3860
3861	if (newEnvStr != NULL)
3862	RTStrFree(newEnvStr);
3863	}
3864
3865	Bstr type (aType);
3866
3867	/* Qt is default */
3868	#ifdef VBOX_WITH_QTGUI
3869	if (type == "gui" \|\| type == "GUI/Qt")
3870	{
3871	# ifdef RT_OS_DARWIN /* Avoid Launch Services confusing this with the selector by using a helper app. */
3872	const char VirtualBox_exe[] = "../Resources/VirtualBoxVM.app/Contents/MacOS/VirtualBoxVM";
3873	# else
3874	const char VirtualBox_exe[] = "VirtualBox" HOSTSUFF_EXE;
3875	# endif
3876	Assert (sz >= sizeof (VirtualBox_exe));
3877	strcpy (cmd, VirtualBox_exe);
3878
3879	Utf8Str idStr = mData->mUuid.toString();
3880	# ifdef RT_OS_WINDOWS /** @todo drop this once the RTProcCreate bug has been fixed */
3881	const char * args[] = {szPath, "--startvm", idStr.c_str(), 0 };
3882	# else
3883	Utf8Str name = mUserData->mName;
3884	const char * args[] = {szPath, "--comment", name.c_str(), "--startvm", idStr.c_str(), 0 };
3885	# endif
3886	vrc = RTProcCreate(szPath, args, env, 0, &pid);
3887	}
3888	#else /* !VBOX_WITH_QTGUI */
3889	if (0)
3890	;
3891	#endif /* VBOX_WITH_QTGUI */
3892
3893	else
3894
3895	#ifdef VBOX_WITH_VBOXSDL
3896	if (type == "sdl" \|\| type == "GUI/SDL")
3897	{
3898	const char VBoxSDL_exe[] = "VBoxSDL" HOSTSUFF_EXE;
3899	Assert (sz >= sizeof (VBoxSDL_exe));
3900	strcpy (cmd, VBoxSDL_exe);
3901
3902	Utf8Str idStr = mData->mUuid.toString();
3903	# ifdef RT_OS_WINDOWS
3904	const char * args[] = {szPath, "--startvm", idStr.c_str(), 0 };
3905	# else
3906	Utf8Str name = mUserData->mName;
3907	const char * args[] = {szPath, "--comment", name.c_str(), "--startvm", idStr.c_str(), 0 };
3908	# endif
3909	vrc = RTProcCreate(szPath, args, env, 0, &pid);
3910	}
3911	#else /* !VBOX_WITH_VBOXSDL */
3912	if (0)
3913	;
3914	#endif /* !VBOX_WITH_VBOXSDL */
3915
3916	else
3917
3918	#ifdef VBOX_WITH_HEADLESS
3919	if ( type == "headless"
3920	\|\| type == "capture"
3921	#ifdef VBOX_WITH_VRDP
3922	\|\| type == "vrdp"
3923	#endif
3924	)
3925	{
3926	const char VBoxHeadless_exe[] = "VBoxHeadless" HOSTSUFF_EXE;
3927	Assert (sz >= sizeof (VBoxHeadless_exe));
3928	strcpy (cmd, VBoxHeadless_exe);
3929
3930	Utf8Str idStr = mData->mUuid.toString();
3931	/* Leave space for 2 args, as "headless" needs --vrdp off on non-OSE. */
3932	# ifdef RT_OS_WINDOWS
3933	const char * args[] = {szPath, "--startvm", idStr.c_str(), 0, 0, 0 };
3934	# else
3935	Utf8Str name = mUserData->mName;
3936	const char * args[] ={szPath, "--comment", name.c_str(), "--startvm", idStr.c_str(), 0, 0, 0 };
3937	# endif
3938	#ifdef VBOX_WITH_VRDP
3939	if (type == "headless")
3940	{
3941	unsigned pos = RT_ELEMENTS(args) - 3;
3942	args[pos++] = "--vrdp";
3943	args[pos] = "off";
3944	}
3945	#endif
3946	if (type == "capture")
3947	{
3948	unsigned pos = RT_ELEMENTS(args) - 3;
3949	args[pos] = "--capture";
3950	}
3951	vrc = RTProcCreate(szPath, args, env, 0, &pid);
3952	}
3953	#else /* !VBOX_WITH_HEADLESS */
3954	if (0)
3955	;
3956	#endif /* !VBOX_WITH_HEADLESS */
3957	else
3958	{
3959	RTEnvDestroy (env);
3960	return setError (E_INVALIDARG,
3961	tr ("Invalid session type: '%ls'"), aType);
3962	}
3963
3964	RTEnvDestroy (env);
3965
3966	if (RT_FAILURE(vrc))
3967	return setError (VBOX_E_IPRT_ERROR,
3968	tr ("Could not launch a process for the machine '%ls' (%Rrc)"),
3969	mUserData->mName.raw(), vrc);
3970
3971	LogFlowThisFunc(("launched.pid=%d(0x%x)\n", pid, pid));
3972
3973	/*
3974	* Note that we don't leave the lock here before calling the client,
3975	* because it doesn't need to call us back if called with a NULL argument.
3976	* Leaving the lock herer is dangerous because we didn't prepare the
3977	* launch data yet, but the client we've just started may happen to be
3978	* too fast and call openSession() that will fail (because of PID, etc.),
3979	* so that the Machine will never get out of the Spawning session state.
3980	*/
3981
3982	/* inform the session that it will be a remote one */
3983	LogFlowThisFunc(("Calling AssignMachine (NULL)...\n"));
3984	HRESULT rc = aControl->AssignMachine (NULL);
3985	LogFlowThisFunc(("AssignMachine (NULL) returned %08X\n", rc));
3986
3987	if (FAILED(rc))
3988	{
3989	/* restore the session state */
3990	mData->mSession.mState = SessionState_Closed;
3991	/* The failure may occur w/o any error info (from RPC), so provide one */
3992	return setError(VBOX_E_VM_ERROR,
3993	tr("Failed to assign the machine to the session (%Rrc)"), rc);
3994	}
3995
3996	/* attach launch data to the machine */
3997	Assert (mData->mSession.mPid == NIL_RTPROCESS);
3998	mData->mSession.mRemoteControls.push_back (aControl);
3999	mData->mSession.mProgress = aProgress;
4000	mData->mSession.mPid = pid;
4001	mData->mSession.mState = SessionState_Spawning;
4002	mData->mSession.mType = type;
4003
4004	LogFlowThisFuncLeave();
4005	return S_OK;
4006	}
4007
4008	/**
4009	* @note Locks this object for writing, calls the client process
4010	* (outside the lock).
4011	*/
4012	HRESULT Machine::openExistingSession (IInternalSessionControl *aControl)
4013	{
4014	LogFlowThisFuncEnter();
4015
4016	AssertReturn(aControl, E_FAIL);
4017
4018	AutoCaller autoCaller(this);
4019	CheckComRCReturnRC(autoCaller.rc());
4020
4021	AutoWriteLock alock(this);
4022
4023	if (!mData->mRegistered)
4024	return setError (E_UNEXPECTED,
4025	tr ("The machine '%ls' is not registered"), mUserData->mName.raw());
4026
4027	LogFlowThisFunc(("mSession.state=%d\n", mData->mSession.mState));
4028
4029	if (mData->mSession.mState != SessionState_Open)
4030	return setError (VBOX_E_INVALID_SESSION_STATE,
4031	tr ("The machine '%ls' does not have an open session"),
4032	mUserData->mName.raw());
4033
4034	ComAssertRet (!mData->mSession.mDirectControl.isNull(), E_FAIL);
4035
4036	/*
4037	* Get the console from the direct session (note that we don't leave the
4038	* lock here because GetRemoteConsole must not call us back).
4039	*/
4040	ComPtr<IConsole> console;
4041	HRESULT rc = mData->mSession.mDirectControl->
4042	GetRemoteConsole (console.asOutParam());
4043	if (FAILED (rc))
4044	{
4045	/* The failure may occur w/o any error info (from RPC), so provide one */
4046	return setError (VBOX_E_VM_ERROR,
4047	tr ("Failed to get a console object from the direct session (%Rrc)"), rc);
4048	}
4049
4050	ComAssertRet (!console.isNull(), E_FAIL);
4051
4052	ComObjPtr<SessionMachine> sessionMachine = mData->mSession.mMachine;
4053	AssertReturn(!sessionMachine.isNull(), E_FAIL);
4054
4055	/*
4056	* Leave the lock before calling the client process. It's safe here
4057	* since the only thing to do after we get the lock again is to add
4058	* the remote control to the list (which doesn't directly influence
4059	* anything).
4060	*/
4061	alock.leave();
4062
4063	/* attach the remote session to the machine */
4064	LogFlowThisFunc(("Calling AssignRemoteMachine()...\n"));
4065	rc = aControl->AssignRemoteMachine (sessionMachine, console);
4066	LogFlowThisFunc(("AssignRemoteMachine() returned %08X\n", rc));
4067
4068	/* The failure may occur w/o any error info (from RPC), so provide one */
4069	if (FAILED(rc))
4070	return setError(VBOX_E_VM_ERROR,
4071	tr("Failed to assign the machine to the session (%Rrc)"),
4072	rc);
4073
4074	alock.enter();
4075
4076	/* need to revalidate the state after entering the lock again */
4077	if (mData->mSession.mState != SessionState_Open)
4078	{
4079	aControl->Uninitialize();
4080
4081	return setError(VBOX_E_INVALID_SESSION_STATE,
4082	tr("The machine '%ls' does not have an open session"),
4083	mUserData->mName.raw());
4084	}
4085
4086	/* store the control in the list */
4087	mData->mSession.mRemoteControls.push_back (aControl);
4088
4089	LogFlowThisFuncLeave();
4090	return S_OK;
4091	}
4092
4093	/**
4094	* Returns @c true if the given machine has an open direct session and returns
4095	* the session machine instance and additional session data (on some platforms)
4096	* if so.
4097	*
4098	* Note that when the method returns @c false, the arguments remain unchanged.
4099	*
4100	* @param aMachine Session machine object.
4101	* @param aControl Direct session control object (optional).
4102	* @param aIPCSem Mutex IPC semaphore handle for this machine (optional).
4103	*
4104	* @note locks this object for reading.
4105	*/
4106	#if defined (RT_OS_WINDOWS)
4107	bool Machine::isSessionOpen (ComObjPtr<SessionMachine> &aMachine,
4108	ComPtr<IInternalSessionControl> aControl /= NULL*/,
4109	HANDLE aIPCSem /= NULL*/,
4110	bool aAllowClosing /= false/)
4111	#elif defined (RT_OS_OS2)
4112	bool Machine::isSessionOpen (ComObjPtr<SessionMachine> &aMachine,
4113	ComPtr<IInternalSessionControl> aControl /= NULL*/,
4114	HMTX aIPCSem /= NULL*/,
4115	bool aAllowClosing /= false/)
4116	#else
4117	bool Machine::isSessionOpen (ComObjPtr<SessionMachine> &aMachine,
4118	ComPtr<IInternalSessionControl> aControl /= NULL*/,
4119	bool aAllowClosing /= false/)
4120	#endif
4121	{
4122	AutoLimitedCaller autoCaller(this);
4123	AssertComRCReturn (autoCaller.rc(), false);
4124
4125	/* just return false for inaccessible machines */
4126	if (autoCaller.state() != Ready)
4127	return false;
4128
4129	AutoReadLock alock(this);
4130
4131	if (mData->mSession.mState == SessionState_Open \|\|
4132	(aAllowClosing && mData->mSession.mState == SessionState_Closing))
4133	{
4134	AssertReturn(!mData->mSession.mMachine.isNull(), false);
4135
4136	aMachine = mData->mSession.mMachine;
4137
4138	if (aControl != NULL)
4139	*aControl = mData->mSession.mDirectControl;
4140
4141	#if defined (RT_OS_WINDOWS) \|\| defined (RT_OS_OS2)
4142	/* Additional session data */
4143	if (aIPCSem != NULL)
4144	*aIPCSem = aMachine->mIPCSem;
4145	#endif
4146	return true;
4147	}
4148
4149	return false;
4150	}
4151
4152	/**
4153	* Returns @c true if the given machine has an spawning direct session and
4154	* returns and additional session data (on some platforms) if so.
4155	*
4156	* Note that when the method returns @c false, the arguments remain unchanged.
4157	*
4158	* @param aPID PID of the spawned direct session process.
4159	*
4160	* @note locks this object for reading.
4161	*/
4162	#if defined (RT_OS_WINDOWS) \|\| defined (RT_OS_OS2)
4163	bool Machine::isSessionSpawning (RTPROCESS aPID /= NULL*/)
4164	#else
4165	bool Machine::isSessionSpawning()
4166	#endif
4167	{
4168	AutoLimitedCaller autoCaller(this);
4169	AssertComRCReturn (autoCaller.rc(), false);
4170
4171	/* just return false for inaccessible machines */
4172	if (autoCaller.state() != Ready)
4173	return false;
4174
4175	AutoReadLock alock(this);
4176
4177	if (mData->mSession.mState == SessionState_Spawning)
4178	{
4179	#if defined (RT_OS_WINDOWS) \|\| defined (RT_OS_OS2)
4180	/* Additional session data */
4181	if (aPID != NULL)
4182	{
4183	AssertReturn(mData->mSession.mPid != NIL_RTPROCESS, false);
4184	*aPID = mData->mSession.mPid;
4185	}
4186	#endif
4187	return true;
4188	}
4189
4190	return false;
4191	}
4192
4193	/**
4194	* Called from the client watcher thread to check for unexpected client process
4195	* death during Session_Spawning state (e.g. before it successfully opened a
4196	* direct session).
4197	*
4198	* On Win32 and on OS/2, this method is called only when we've got the
4199	* direct client's process termination notification, so it always returns @c
4200	* true.
4201	*
4202	* On other platforms, this method returns @c true if the client process is
4203	* terminated and @c false if it's still alive.
4204	*
4205	* @note Locks this object for writing.
4206	*/
4207	bool Machine::checkForSpawnFailure()
4208	{
4209	AutoCaller autoCaller(this);
4210	if (!autoCaller.isOk())
4211	{
4212	/* nothing to do */
4213	LogFlowThisFunc(("Already uninitialized!"));
4214	return true;
4215	}
4216
4217	/* VirtualBox::addProcessToReap() needs a write lock */
4218	AutoMultiWriteLock2 alock (mParent, this);
4219
4220	if (mData->mSession.mState != SessionState_Spawning)
4221	{
4222	/* nothing to do */
4223	LogFlowThisFunc(("Not spawning any more!"));
4224	return true;
4225	}
4226
4227	HRESULT rc = S_OK;
4228
4229	#if defined (RT_OS_WINDOWS) \|\| defined (RT_OS_OS2)
4230
4231	/* the process was already unexpectedly terminated, we just need to set an
4232	* error and finalize session spawning */
4233	rc = setError(E_FAIL,
4234	tr("Virtual machine '%ls' has terminated unexpectedly during startup"),
4235	name().raw());
4236	#else
4237
4238	RTPROCSTATUS status;
4239	int vrc = ::RTProcWait (mData->mSession.mPid, RTPROCWAIT_FLAGS_NOBLOCK,
4240	&status);
4241
4242	if (vrc != VERR_PROCESS_RUNNING)
4243	rc = setError(E_FAIL,
4244	tr("Virtual machine '%ls' has terminated unexpectedly during startup"),
4245	name().raw());
4246	#endif
4247
4248	if (FAILED(rc))
4249	{
4250	/* Close the remote session, remove the remote control from the list
4251	* and reset session state to Closed (@note keep the code in sync with
4252	* the relevant part in checkForSpawnFailure()). */
4253
4254	Assert (mData->mSession.mRemoteControls.size() == 1);
4255	if (mData->mSession.mRemoteControls.size() == 1)
4256	{
4257	ErrorInfoKeeper eik;
4258	mData->mSession.mRemoteControls.front()->Uninitialize();
4259	}
4260
4261	mData->mSession.mRemoteControls.clear();
4262	mData->mSession.mState = SessionState_Closed;
4263
4264	/* finalize the progress after setting the state, for consistency */
4265	mData->mSession.mProgress->notifyComplete (rc);
4266	mData->mSession.mProgress.setNull();
4267
4268	mParent->addProcessToReap (mData->mSession.mPid);
4269	mData->mSession.mPid = NIL_RTPROCESS;
4270
4271	mParent->onSessionStateChange (mData->mUuid, SessionState_Closed);
4272	return true;
4273	}
4274
4275	return false;
4276	}
4277
4278	/**
4279	* Checks that the registered flag of the machine can be set according to
4280	* the argument and sets it. On success, commits and saves all settings.
4281	*
4282	* @note When this machine is inaccessible, the only valid value for \a
4283	* aRegistered is FALSE (i.e. unregister the machine) because unregistered
4284	* inaccessible machines are not currently supported. Note that unregistering
4285	* an inaccessible machine will \b uninitialize this machine object. Therefore,
4286	* the caller must make sure there are no active Machine::addCaller() calls
4287	* on the current thread because this will block Machine::uninit().
4288	*
4289	* @note Must be called from mParent's write lock. Locks this object and
4290	* children for writing.
4291	*/
4292	HRESULT Machine::trySetRegistered (BOOL aRegistered)
4293	{
4294	AssertReturn(mParent->isWriteLockOnCurrentThread(), E_FAIL);
4295
4296	AutoLimitedCaller autoCaller(this);
4297	AssertComRCReturnRC(autoCaller.rc());
4298
4299	AutoWriteLock alock(this);
4300
4301	/* wait for state dependants to drop to zero */
4302	ensureNoStateDependencies();
4303
4304	ComAssertRet (mData->mRegistered != aRegistered, E_FAIL);
4305
4306	if (!mData->mAccessible)
4307	{
4308	/* A special case: the machine is not accessible. */
4309
4310	/* inaccessible machines can only be unregistered */
4311	AssertReturn(!aRegistered, E_FAIL);
4312
4313	/* Uninitialize ourselves here because currently there may be no
4314	* unregistered that are inaccessible (this state combination is not
4315	* supported). Note releasing the caller and leaving the lock before
4316	* calling uninit() */
4317
4318	alock.leave();
4319	autoCaller.release();
4320
4321	uninit();
4322
4323	return S_OK;
4324	}
4325
4326	AssertReturn(autoCaller.state() == Ready, E_FAIL);
4327
4328	if (aRegistered)
4329	{
4330	if (mData->mRegistered)
4331	return setError(VBOX_E_INVALID_OBJECT_STATE,
4332	tr("The machine '%ls' with UUID {%s} is already registered"),
4333	mUserData->mName.raw(),
4334	mData->mUuid.toString().raw());
4335	}
4336	else
4337	{
4338	if (mData->mMachineState == MachineState_Saved)
4339	return setError(VBOX_E_INVALID_VM_STATE,
4340	tr("Cannot unregister the machine '%ls' because it is in the Saved state"),
4341	mUserData->mName.raw());
4342
4343	size_t snapshotCount = 0;
4344	if (mData->mFirstSnapshot)
4345	snapshotCount = mData->mFirstSnapshot->getAllChildrenCount() + 1;
4346	if (snapshotCount)
4347	return setError(VBOX_E_INVALID_OBJECT_STATE,
4348	tr("Cannot unregister the machine '%ls' because it has %d snapshots"),
4349	mUserData->mName.raw(), snapshotCount);
4350
4351	if (mData->mSession.mState != SessionState_Closed)
4352	return setError(VBOX_E_INVALID_OBJECT_STATE,
4353	tr("Cannot unregister the machine '%ls' because it has an open session"),
4354	mUserData->mName.raw());
4355
4356	if (mMediaData->mAttachments.size() != 0)
4357	return setError(VBOX_E_INVALID_OBJECT_STATE,
4358	tr("Cannot unregister the machine '%ls' because it has %d medium attachments"),
4359	mUserData->mName.raw(),
4360	mMediaData->mAttachments.size());
4361
4362	/* Note that we do not prevent unregistration of a DVD or Floppy image
4363	* is attached: as opposed to hard disks detaching such an image
4364	* implicitly in this method (which we will do below) won't have any
4365	* side effects (like detached orphan base and diff hard disks etc).*/
4366	}
4367
4368	HRESULT rc = S_OK;
4369
4370	/* Ensure the settings are saved. If we are going to be registered and
4371	* isConfigLocked() is FALSE then it means that no config file exists yet,
4372	* so create it by calling saveSettings() too. */
4373	if ( isModified()
4374	\|\| (aRegistered && !mData->m_pMachineConfigFile->fileExists())
4375	)
4376	{
4377	rc = saveSettings();
4378	CheckComRCReturnRC(rc);
4379	}
4380
4381	/* more config checking goes here */
4382
4383	if (SUCCEEDED(rc))
4384	{
4385	/* we may have had implicit modifications we want to fix on success */
4386	commit();
4387
4388	mData->mRegistered = aRegistered;
4389	}
4390	else
4391	{
4392	/* we may have had implicit modifications we want to cancel on failure*/
4393	rollback (false /* aNotify */);
4394	}
4395
4396	return rc;
4397	}
4398
4399	/**
4400	* Increases the number of objects dependent on the machine state or on the
4401	* registered state. Guarantees that these two states will not change at least
4402	* until #releaseStateDependency() is called.
4403	*
4404	* Depending on the @a aDepType value, additional state checks may be made.
4405	* These checks will set extended error info on failure. See
4406	* #checkStateDependency() for more info.
4407	*
4408	* If this method returns a failure, the dependency is not added and the caller
4409	* is not allowed to rely on any particular machine state or registration state
4410	* value and may return the failed result code to the upper level.
4411	*
4412	* @param aDepType Dependency type to add.
4413	* @param aState Current machine state (NULL if not interested).
4414	* @param aRegistered Current registered state (NULL if not interested).
4415	*
4416	* @note Locks this object for writing.
4417	*/
4418	HRESULT Machine::addStateDependency (StateDependency aDepType /* = AnyStateDep */,
4419	MachineState_T aState / = NULL */,
4420	BOOL aRegistered / = NULL */)
4421	{
4422	AutoCaller autoCaller(this);
4423	AssertComRCReturnRC(autoCaller.rc());
4424
4425	AutoWriteLock alock(this);
4426
4427	HRESULT rc = checkStateDependency(aDepType);
4428	CheckComRCReturnRC(rc);
4429
4430	{
4431	if (mData->mMachineStateChangePending != 0)
4432	{
4433	/* ensureNoStateDependencies() is waiting for state dependencies to
4434	* drop to zero so don't add more. It may make sense to wait a bit
4435	* and retry before reporting an error (since the pending state
4436	* transition should be really quick) but let's just assert for
4437	* now to see if it ever happens on practice. */
4438
4439	AssertFailed();
4440
4441	return setError(E_ACCESSDENIED,
4442	tr("Machine state change is in progress. Please retry the operation later."));
4443	}
4444
4445	++mData->mMachineStateDeps;
4446	Assert (mData->mMachineStateDeps != 0 /* overflow */);
4447	}
4448
4449	if (aState)
4450	*aState = mData->mMachineState;
4451	if (aRegistered)
4452	*aRegistered = mData->mRegistered;
4453
4454	return S_OK;
4455	}
4456
4457	/**
4458	* Decreases the number of objects dependent on the machine state.
4459	* Must always complete the #addStateDependency() call after the state
4460	* dependency is no more necessary.
4461	*/
4462	void Machine::releaseStateDependency()
4463	{
4464	AutoCaller autoCaller(this);
4465	AssertComRCReturnVoid (autoCaller.rc());
4466
4467	AutoWriteLock alock(this);
4468
4469	AssertReturnVoid (mData->mMachineStateDeps != 0
4470	/* releaseStateDependency() w/o addStateDependency()? */);
4471	-- mData->mMachineStateDeps;
4472
4473	if (mData->mMachineStateDeps == 0)
4474	{
4475	/* inform ensureNoStateDependencies() that there are no more deps */
4476	if (mData->mMachineStateChangePending != 0)
4477	{
4478	Assert (mData->mMachineStateDepsSem != NIL_RTSEMEVENTMULTI);
4479	RTSemEventMultiSignal (mData->mMachineStateDepsSem);
4480	}
4481	}
4482	}
4483
4484	// protected methods
4485	/////////////////////////////////////////////////////////////////////////////
4486
4487	/**
4488	* Performs machine state checks based on the @a aDepType value. If a check
4489	* fails, this method will set extended error info, otherwise it will return
4490	* S_OK. It is supposed, that on failure, the caller will immedieately return
4491	* the return value of this method to the upper level.
4492	*
4493	* When @a aDepType is AnyStateDep, this method always returns S_OK.
4494	*
4495	* When @a aDepType is MutableStateDep, this method returns S_OK only if the
4496	* current state of this machine object allows to change settings of the
4497	* machine (i.e. the machine is not registered, or registered but not running
4498	* and not saved). It is useful to call this method from Machine setters
4499	* before performing any change.
4500	*
4501	* When @a aDepType is MutableOrSavedStateDep, this method behaves the same
4502	* as for MutableStateDep except that if the machine is saved, S_OK is also
4503	* returned. This is useful in setters which allow changing machine
4504	* properties when it is in the saved state.
4505	*
4506	* @param aDepType Dependency type to check.
4507	*
4508	* @note Non Machine based classes should use #addStateDependency() and
4509	* #releaseStateDependency() methods or the smart AutoStateDependency
4510	* template.
4511	*
4512	* @note This method must be called from under this object's read or write
4513	* lock.
4514	*/
4515	HRESULT Machine::checkStateDependency(StateDependency aDepType)
4516	{
4517	switch (aDepType)
4518	{
4519	case AnyStateDep:
4520	{
4521	break;
4522	}
4523	case MutableStateDep:
4524	{
4525	if (mData->mRegistered &&
4526	(mType != IsSessionMachine \|\|
4527	mData->mMachineState > MachineState_Paused \|\|
4528	mData->mMachineState == MachineState_Saved))
4529	return setError(VBOX_E_INVALID_VM_STATE,
4530	tr("The machine is not mutable (state is %d)"),
4531	mData->mMachineState);
4532	break;
4533	}
4534	case MutableOrSavedStateDep:
4535	{
4536	if (mData->mRegistered &&
4537	(mType != IsSessionMachine \|\|
4538	mData->mMachineState > MachineState_Paused))
4539	return setError(VBOX_E_INVALID_VM_STATE,
4540	tr("The machine is not mutable (state is %d)"),
4541	mData->mMachineState);
4542	break;
4543	}
4544	}
4545
4546	return S_OK;
4547	}
4548
4549	/**
4550	* Helper to initialize all associated child objects and allocate data
4551	* structures.
4552	*
4553	* This method must be called as a part of the object's initialization procedure
4554	* (usually done in the #init() method).
4555	*
4556	* @note Must be called only from #init() or from #registeredInit().
4557	*/
4558	HRESULT Machine::initDataAndChildObjects()
4559	{
4560	AutoCaller autoCaller(this);
4561	AssertComRCReturnRC(autoCaller.rc());
4562	AssertComRCReturn (autoCaller.state() == InInit \|\|
4563	autoCaller.state() == Limited, E_FAIL);
4564
4565	AssertReturn(!mData->mAccessible, E_FAIL);
4566
4567	/* allocate data structures */
4568	mSSData.allocate();
4569	mUserData.allocate();
4570	mHWData.allocate();
4571	mMediaData.allocate();
4572	mStorageControllers.allocate();
4573
4574	/* initialize mOSTypeId */
4575	mUserData->mOSTypeId = mParent->getUnknownOSType()->id();
4576
4577	/* create associated BIOS settings object */
4578	unconst(mBIOSSettings).createObject();
4579	mBIOSSettings->init (this);
4580
4581	#ifdef VBOX_WITH_VRDP
4582	/* create an associated VRDPServer object (default is disabled) */
4583	unconst(mVRDPServer).createObject();
4584	mVRDPServer->init (this);
4585	#endif
4586
4587	/* create associated serial port objects */
4588	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
4589	{
4590	unconst(mSerialPorts [slot]).createObject();
4591	mSerialPorts [slot]->init (this, slot);
4592	}
4593
4594	/* create associated parallel port objects */
4595	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
4596	{
4597	unconst(mParallelPorts [slot]).createObject();
4598	mParallelPorts [slot]->init (this, slot);
4599	}
4600
4601	/* create the audio adapter object (always present, default is disabled) */
4602	unconst(mAudioAdapter).createObject();
4603	mAudioAdapter->init (this);
4604
4605	/* create the USB controller object (always present, default is disabled) */
4606	unconst(mUSBController).createObject();
4607	mUSBController->init (this);
4608
4609	/* create associated network adapter objects */
4610	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
4611	{
4612	unconst(mNetworkAdapters [slot]).createObject();
4613	mNetworkAdapters [slot]->init (this, slot);
4614	}
4615
4616	return S_OK;
4617	}
4618
4619	/**
4620	* Helper to uninitialize all associated child objects and to free all data
4621	* structures.
4622	*
4623	* This method must be called as a part of the object's uninitialization
4624	* procedure (usually done in the #uninit() method).
4625	*
4626	* @note Must be called only from #uninit() or from #registeredInit().
4627	*/
4628	void Machine::uninitDataAndChildObjects()
4629	{
4630	AutoCaller autoCaller(this);
4631	AssertComRCReturnVoid (autoCaller.rc());
4632	AssertComRCReturnVoid (autoCaller.state() == InUninit \|\|
4633	autoCaller.state() == Limited);
4634
4635	/* uninit all children using addDependentChild()/removeDependentChild()
4636	* in their init()/uninit() methods */
4637	uninitDependentChildren();
4638
4639	/* tell all our other child objects we've been uninitialized */
4640
4641	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
4642	{
4643	if (mNetworkAdapters [slot])
4644	{
4645	mNetworkAdapters [slot]->uninit();
4646	unconst(mNetworkAdapters [slot]).setNull();
4647	}
4648	}
4649
4650	if (mUSBController)
4651	{
4652	mUSBController->uninit();
4653	unconst(mUSBController).setNull();
4654	}
4655
4656	if (mAudioAdapter)
4657	{
4658	mAudioAdapter->uninit();
4659	unconst(mAudioAdapter).setNull();
4660	}
4661
4662	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
4663	{
4664	if (mParallelPorts [slot])
4665	{
4666	mParallelPorts [slot]->uninit();
4667	unconst(mParallelPorts [slot]).setNull();
4668	}
4669	}
4670
4671	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
4672	{
4673	if (mSerialPorts [slot])
4674	{
4675	mSerialPorts [slot]->uninit();
4676	unconst(mSerialPorts [slot]).setNull();
4677	}
4678	}
4679
4680	#ifdef VBOX_WITH_VRDP
4681	if (mVRDPServer)
4682	{
4683	mVRDPServer->uninit();
4684	unconst(mVRDPServer).setNull();
4685	}
4686	#endif
4687
4688	if (mBIOSSettings)
4689	{
4690	mBIOSSettings->uninit();
4691	unconst(mBIOSSettings).setNull();
4692	}
4693
4694	/* Deassociate hard disks (only when a real Machine or a SnapshotMachine
4695	* instance is uninitialized; SessionMachine instances refer to real
4696	* Machine hard disks). This is necessary for a clean re-initialization of
4697	* the VM after successfully re-checking the accessibility state. Note
4698	* that in case of normal Machine or SnapshotMachine uninitialization (as
4699	* a result of unregistering or discarding the snapshot), outdated hard
4700	* disk attachments will already be uninitialized and deleted, so this
4701	* code will not affect them. */
4702	if (!!mMediaData && (mType == IsMachine \|\| mType == IsSnapshotMachine))
4703	{
4704	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
4705	it != mMediaData->mAttachments.end();
4706	++it)
4707	{
4708	ComObjPtr<Medium> hd = (*it)->medium();
4709	if (hd.isNull() \|\| (*it)->type() != DeviceType_HardDisk)
4710	continue;
4711	HRESULT rc = hd->detachFrom(mData->mUuid, snapshotId());
4712	AssertComRC (rc);
4713	}
4714	}
4715
4716	if (mType == IsMachine)
4717	{
4718	/* reset some important fields of mData */
4719	mData->mCurrentSnapshot.setNull();
4720	mData->mFirstSnapshot.setNull();
4721	}
4722
4723	/* free data structures (the essential mData structure is not freed here
4724	* since it may be still in use) */
4725	mMediaData.free();
4726	mStorageControllers.free();
4727	mHWData.free();
4728	mUserData.free();
4729	mSSData.free();
4730	}
4731
4732	/**
4733	* Makes sure that there are no machine state dependants. If necessary, waits
4734	* for the number of dependants to drop to zero.
4735	*
4736	* Make sure this method is called from under this object's write lock to
4737	* guarantee that no new dependants may be added when this method returns
4738	* control to the caller.
4739	*
4740	* @note Locks this object for writing. The lock will be released while waiting
4741	* (if necessary).
4742	*
4743	* @warning To be used only in methods that change the machine state!
4744	*/
4745	void Machine::ensureNoStateDependencies()
4746	{
4747	AssertReturnVoid (isWriteLockOnCurrentThread());
4748
4749	AutoWriteLock alock(this);
4750
4751	/* Wait for all state dependants if necessary */
4752	if (mData->mMachineStateDeps != 0)
4753	{
4754	/* lazy semaphore creation */
4755	if (mData->mMachineStateDepsSem == NIL_RTSEMEVENTMULTI)
4756	RTSemEventMultiCreate (&mData->mMachineStateDepsSem);
4757
4758	LogFlowThisFunc(("Waiting for state deps (%d) to drop to zero...\n",
4759	mData->mMachineStateDeps));
4760
4761	++mData->mMachineStateChangePending;
4762
4763	/* reset the semaphore before waiting, the last dependant will signal
4764	* it */
4765	RTSemEventMultiReset (mData->mMachineStateDepsSem);
4766
4767	alock.leave();
4768
4769	RTSemEventMultiWait (mData->mMachineStateDepsSem, RT_INDEFINITE_WAIT);
4770
4771	alock.enter();
4772
4773	-- mData->mMachineStateChangePending;
4774	}
4775	}
4776
4777	/**
4778	* Changes the machine state and informs callbacks.
4779	*
4780	* This method is not intended to fail so it either returns S_OK or asserts (and
4781	* returns a failure).
4782	*
4783	* @note Locks this object for writing.
4784	*/
4785	HRESULT Machine::setMachineState (MachineState_T aMachineState)
4786	{
4787	LogFlowThisFuncEnter();
4788	LogFlowThisFunc(("aMachineState=%d\n", aMachineState));
4789
4790	AutoCaller autoCaller(this);
4791	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
4792
4793	AutoWriteLock alock(this);
4794
4795	/* wait for state dependants to drop to zero */
4796	ensureNoStateDependencies();
4797
4798	if (mData->mMachineState != aMachineState)
4799	{
4800	mData->mMachineState = aMachineState;
4801
4802	RTTimeNow (&mData->mLastStateChange);
4803
4804	mParent->onMachineStateChange(mData->mUuid, aMachineState);
4805	}
4806
4807	LogFlowThisFuncLeave();
4808	return S_OK;
4809	}
4810
4811	/**
4812	* Searches for a shared folder with the given logical name
4813	* in the collection of shared folders.
4814	*
4815	* @param aName logical name of the shared folder
4816	* @param aSharedFolder where to return the found object
4817	* @param aSetError whether to set the error info if the folder is
4818	* not found
4819	* @return
4820	* S_OK when found or VBOX_E_OBJECT_NOT_FOUND when not found
4821	*
4822	* @note
4823	* must be called from under the object's lock!
4824	*/
4825	HRESULT Machine::findSharedFolder (CBSTR aName,
4826	ComObjPtr<SharedFolder> &aSharedFolder,
4827	bool aSetError /* = false */)
4828	{
4829	bool found = false;
4830	for (HWData::SharedFolderList::const_iterator it = mHWData->mSharedFolders.begin();
4831	!found && it != mHWData->mSharedFolders.end();
4832	++it)
4833	{
4834	AutoWriteLock alock(*it);
4835	found = (*it)->name() == aName;
4836	if (found)
4837	aSharedFolder = *it;
4838	}
4839
4840	HRESULT rc = found ? S_OK : VBOX_E_OBJECT_NOT_FOUND;
4841
4842	if (aSetError && !found)
4843	setError(rc, tr("Could not find a shared folder named '%ls'"), aName);
4844
4845	return rc;
4846	}
4847
4848	/**
4849	* Loads all the VM settings by walking down the <Machine> node.
4850	*
4851	* @param aRegistered true when the machine is being loaded on VirtualBox
4852	* startup
4853	*
4854	* @note This method is intended to be called only from init(), so it assumes
4855	* all machine data fields have appropriate default values when it is called.
4856	*
4857	* @note Doesn't lock any objects.
4858	*/
4859	HRESULT Machine::loadSettings(bool aRegistered)
4860	{
4861	LogFlowThisFuncEnter();
4862	AssertReturn(mType == IsMachine, E_FAIL);
4863
4864	AutoCaller autoCaller(this);
4865	AssertReturn(autoCaller.state() == InInit, E_FAIL);
4866
4867	HRESULT rc = S_OK;
4868
4869	try
4870	{
4871	Assert(mData->m_pMachineConfigFile == NULL);
4872
4873	// load and parse machine XML; this will throw on XML or logic errors
4874	mData->m_pMachineConfigFile = new settings::MachineConfigFile(&mData->m_strConfigFileFull);
4875
4876	/* If the stored UUID is not empty, it means the registered machine
4877	* is being loaded. Compare the loaded UUID with the stored one taken
4878	* from the global registry. */
4879	if (!mData->mUuid.isEmpty())
4880	{
4881	if (mData->mUuid != mData->m_pMachineConfigFile->uuid)
4882	{
4883	throw setError(E_FAIL,
4884	tr("Machine UUID {%RTuuid} in '%s' doesn't match its UUID {%s} in the registry file '%s'"),
4885	mData->m_pMachineConfigFile->uuid.raw(),
4886	mData->m_strConfigFileFull.raw(),
4887	mData->mUuid.toString().raw(),
4888	mParent->settingsFilePath().raw());
4889	}
4890	}
4891	else
4892	unconst (mData->mUuid) = mData->m_pMachineConfigFile->uuid;
4893
4894	/* name (required) */
4895	mUserData->mName = mData->m_pMachineConfigFile->strName;
4896
4897	/* nameSync (optional, default is true) */
4898	mUserData->mNameSync = mData->m_pMachineConfigFile->fNameSync;
4899
4900	mUserData->mDescription = mData->m_pMachineConfigFile->strDescription;
4901
4902	// guest OS type
4903	mUserData->mOSTypeId = mData->m_pMachineConfigFile->strOsType;
4904	/* look up the object by Id to check it is valid */
4905	ComPtr<IGuestOSType> guestOSType;
4906	rc = mParent->GetGuestOSType(mUserData->mOSTypeId,
4907	guestOSType.asOutParam());
4908	CheckComRCThrowRC(rc);
4909
4910	// stateFile (optional)
4911	if (mData->m_pMachineConfigFile->strStateFile.isEmpty())
4912	mSSData->mStateFilePath.setNull();
4913	else
4914	{
4915	Utf8Str stateFilePathFull(mData->m_pMachineConfigFile->strStateFile);
4916	int vrc = calculateFullPath(stateFilePathFull, stateFilePathFull);
4917	if (RT_FAILURE(vrc))
4918	throw setError(E_FAIL,
4919	tr("Invalid saved state file path '%s' (%Rrc)"),
4920	mData->m_pMachineConfigFile->strStateFile.raw(),
4921	vrc);
4922	mSSData->mStateFilePath = stateFilePathFull;
4923	}
4924
4925	/* snapshotFolder (optional) */
4926	rc = COMSETTER(SnapshotFolder)(Bstr(mData->m_pMachineConfigFile->strSnapshotFolder));
4927	CheckComRCThrowRC(rc);
4928
4929	/* currentStateModified (optional, default is true) */
4930	mData->mCurrentStateModified = mData->m_pMachineConfigFile->fCurrentStateModified;
4931
4932	mData->mLastStateChange = mData->m_pMachineConfigFile->timeLastStateChange;
4933
4934	/*
4935	* note: all mUserData members must be assigned prior this point because
4936	* we need to commit changes in order to let mUserData be shared by all
4937	* snapshot machine instances.
4938	*/
4939	mUserData.commitCopy();
4940
4941	/* Snapshot node (optional) */
4942	if (mData->m_pMachineConfigFile->llFirstSnapshot.size())
4943	{
4944	// there can only be one root snapshot
4945	Assert(mData->m_pMachineConfigFile->llFirstSnapshot.size() == 1);
4946
4947	settings::Snapshot &snap = mData->m_pMachineConfigFile->llFirstSnapshot.front();
4948
4949	rc = loadSnapshot(snap,
4950	mData->m_pMachineConfigFile->uuidCurrentSnapshot,
4951	NULL); // no parent == first snapshot
4952	CheckComRCThrowRC(rc);
4953	}
4954
4955	/* Hardware node (required) */
4956	rc = loadHardware(mData->m_pMachineConfigFile->hardwareMachine);
4957	CheckComRCThrowRC(rc);
4958
4959	/* Load storage controllers */
4960	rc = loadStorageControllers(mData->m_pMachineConfigFile->storageMachine, aRegistered);
4961	CheckComRCThrowRC(rc);
4962
4963	/*
4964	* NOTE: the assignment below must be the last thing to do,
4965	* otherwise it will be not possible to change the settings
4966	* somewehere in the code above because all setters will be
4967	* blocked by checkStateDependency(MutableStateDep).
4968	*/
4969
4970	/* set the machine state to Aborted or Saved when appropriate */
4971	if (mData->m_pMachineConfigFile->fAborted)
4972	{
4973	Assert(!mSSData->mStateFilePath);
4974	mSSData->mStateFilePath.setNull();
4975
4976	/* no need to use setMachineState() during init() */
4977	mData->mMachineState = MachineState_Aborted;
4978	}
4979	else if (mSSData->mStateFilePath)
4980	{
4981	/* no need to use setMachineState() during init() */
4982	mData->mMachineState = MachineState_Saved;
4983	}
4984	}
4985	catch (HRESULT err)
4986	{
4987	/* we assume that error info is set by the thrower */
4988	rc = err;
4989	}
4990	catch (...)
4991	{
4992	rc = VirtualBox::handleUnexpectedExceptions (RT_SRC_POS);
4993	}
4994
4995	LogFlowThisFuncLeave();
4996	return rc;
4997	}
4998
4999	/**
5000	* Recursively loads all snapshots starting from the given.
5001	*
5002	* @param aNode <Snapshot> node.
5003	* @param aCurSnapshotId Current snapshot ID from the settings file.
5004	* @param aParentSnapshot Parent snapshot.
5005	*/
5006	HRESULT Machine::loadSnapshot(const settings::Snapshot &data,
5007	const Guid &aCurSnapshotId,
5008	Snapshot *aParentSnapshot)
5009	{
5010	AssertReturn (mType == IsMachine, E_FAIL);
5011
5012	HRESULT rc = S_OK;
5013
5014	Utf8Str strStateFile;
5015	if (!data.strStateFile.isEmpty())
5016	{
5017	/* optional */
5018	strStateFile = data.strStateFile;
5019	int vrc = calculateFullPath(strStateFile, strStateFile);
5020	if (RT_FAILURE(vrc))
5021	return setError(E_FAIL,
5022	tr("Invalid saved state file path '%s' (%Rrc)"),
5023	strStateFile.raw(),
5024	vrc);
5025	}
5026
5027	/* create a snapshot machine object */
5028	ComObjPtr<SnapshotMachine> pSnapshotMachine;
5029	pSnapshotMachine.createObject();
5030	rc = pSnapshotMachine->init(this,
5031	data.hardware,
5032	data.storage,
5033	data.uuid,
5034	strStateFile);
5035	CheckComRCReturnRC (rc);
5036
5037	/* create a snapshot object */
5038	ComObjPtr<Snapshot> pSnapshot;
5039	pSnapshot.createObject();
5040	/* initialize the snapshot */
5041	rc = pSnapshot->init(mParent, // VirtualBox object
5042	data.uuid,
5043	data.strName,
5044	data.strDescription,
5045	data.timestamp,
5046	pSnapshotMachine,
5047	aParentSnapshot);
5048	CheckComRCReturnRC (rc);
5049
5050	/* memorize the first snapshot if necessary */
5051	if (!mData->mFirstSnapshot)
5052	mData->mFirstSnapshot = pSnapshot;
5053
5054	/* memorize the current snapshot when appropriate */
5055	if ( !mData->mCurrentSnapshot
5056	&& pSnapshot->getId() == aCurSnapshotId
5057	)
5058	mData->mCurrentSnapshot = pSnapshot;
5059
5060	// now create the children
5061	for (settings::SnapshotsList::const_iterator it = data.llChildSnapshots.begin();
5062	it != data.llChildSnapshots.end();
5063	++it)
5064	{
5065	const settings::Snapshot &childData = *it;
5066	// recurse
5067	rc = loadSnapshot(childData,
5068	aCurSnapshotId,
5069	pSnapshot); // parent = the one we created above
5070	CheckComRCBreakRC(rc);
5071	}
5072
5073	return rc;
5074	}
5075
5076	/**
5077	* @param aNode <Hardware> node.
5078	*/
5079	HRESULT Machine::loadHardware(const settings::Hardware &data)
5080	{
5081	AssertReturn(mType == IsMachine \|\| mType == IsSnapshotMachine, E_FAIL);
5082
5083	HRESULT rc = S_OK;
5084
5085	try
5086	{
5087	/* The hardware version attribute (optional). */
5088	mHWData->mHWVersion = data.strVersion;
5089
5090	mHWData->mHWVirtExEnabled = data.fHardwareVirt;
5091	mHWData->mHWVirtExNestedPagingEnabled = data.fNestedPaging;
5092	mHWData->mHWVirtExVPIDEnabled = data.fVPID;
5093	mHWData->mPAEEnabled = data.fPAE;
5094
5095	mHWData->mCPUCount = data.cCPUs;
5096
5097	mHWData->mMemorySize = data.ulMemorySizeMB;
5098
5099	// boot order
5100	for (size_t i = 0;
5101	i < RT_ELEMENTS(mHWData->mBootOrder);
5102	i++)
5103	{
5104	settings::BootOrderMap::const_iterator it = data.mapBootOrder.find(i);
5105	if (it == data.mapBootOrder.end())
5106	mHWData->mBootOrder[i] = DeviceType_Null;
5107	else
5108	mHWData->mBootOrder[i] = it->second;
5109	}
5110
5111	mHWData->mVRAMSize = data.ulVRAMSizeMB;
5112	mHWData->mMonitorCount = data.cMonitors;
5113	mHWData->mAccelerate3DEnabled = data.fAccelerate3D;
5114	mHWData->mAccelerate2DVideoEnabled = data.fAccelerate2DVideo;
5115	mHWData->mFirmwareType = data.firmwareType;
5116
5117	#ifdef VBOX_WITH_VRDP
5118	/* RemoteDisplay */
5119	rc = mVRDPServer->loadSettings(data.vrdpSettings);
5120	CheckComRCReturnRC (rc);
5121	#endif
5122
5123	/* BIOS */
5124	rc = mBIOSSettings->loadSettings(data.biosSettings);
5125	CheckComRCReturnRC (rc);
5126
5127	/* USB Controller */
5128	rc = mUSBController->loadSettings(data.usbController);
5129	CheckComRCReturnRC (rc);
5130
5131	// network adapters
5132	for (settings::NetworkAdaptersList::const_iterator it = data.llNetworkAdapters.begin();
5133	it != data.llNetworkAdapters.end();
5134	++it)
5135	{
5136	const settings::NetworkAdapter &nic = *it;
5137
5138	/* slot unicity is guaranteed by XML Schema */
5139	AssertBreak(nic.ulSlot < RT_ELEMENTS(mNetworkAdapters));
5140	rc = mNetworkAdapters[nic.ulSlot]->loadSettings(nic);
5141	CheckComRCReturnRC (rc);
5142	}
5143
5144	// serial ports
5145	for (settings::SerialPortsList::const_iterator it = data.llSerialPorts.begin();
5146	it != data.llSerialPorts.end();
5147	++it)
5148	{
5149	const settings::SerialPort &s = *it;
5150
5151	AssertBreak(s.ulSlot < RT_ELEMENTS(mSerialPorts));
5152	rc = mSerialPorts[s.ulSlot]->loadSettings(s);
5153	CheckComRCReturnRC (rc);
5154	}
5155
5156	// parallel ports (optional)
5157	for (settings::ParallelPortsList::const_iterator it = data.llParallelPorts.begin();
5158	it != data.llParallelPorts.end();
5159	++it)
5160	{
5161	const settings::ParallelPort &p = *it;
5162
5163	AssertBreak(p.ulSlot < RT_ELEMENTS(mParallelPorts));
5164	rc = mParallelPorts[p.ulSlot]->loadSettings(p);
5165	CheckComRCReturnRC (rc);
5166	}
5167
5168	/* AudioAdapter */
5169	rc = mAudioAdapter->loadSettings(data.audioAdapter);
5170	CheckComRCReturnRC (rc);
5171
5172	for (settings::SharedFoldersList::const_iterator it = data.llSharedFolders.begin();
5173	it != data.llSharedFolders.end();
5174	++it)
5175	{
5176	const settings::SharedFolder &sf = *it;
5177	rc = CreateSharedFolder(Bstr(sf.strName), Bstr(sf.strHostPath), sf.fWritable);
5178	CheckComRCReturnRC (rc);
5179	}
5180
5181	// Clipboard
5182	mHWData->mClipboardMode = data.clipboardMode;
5183
5184	// guest settings
5185	mHWData->mMemoryBalloonSize = data.ulMemoryBalloonSize;
5186	mHWData->mStatisticsUpdateInterval = data.ulStatisticsUpdateInterval;
5187
5188	#ifdef VBOX_WITH_GUEST_PROPS
5189	/* Guest properties (optional) */
5190	for (settings::GuestPropertiesList::const_iterator it = data.llGuestProperties.begin();
5191	it != data.llGuestProperties.end();
5192	++it)
5193	{
5194	const settings::GuestProperty &prop = *it;
5195	uint32_t fFlags = guestProp::NILFLAG;
5196	guestProp::validateFlags(prop.strFlags.c_str(), &fFlags);
5197	HWData::GuestProperty property = { prop.strName, prop.strValue, prop.timestamp, fFlags };
5198	mHWData->mGuestProperties.push_back(property);
5199	}
5200
5201	mHWData->mPropertyServiceActive = false;
5202	mHWData->mGuestPropertyNotificationPatterns = data.strNotificationPatterns;
5203	#endif /* VBOX_WITH_GUEST_PROPS defined */
5204	}
5205	catch(std::bad_alloc &)
5206	{
5207	return E_OUTOFMEMORY;
5208	}
5209
5210	AssertComRC(rc);
5211	return rc;
5212	}
5213
5214	/**
5215	* @param aNode <StorageControllers> node.
5216	*/
5217	HRESULT Machine::loadStorageControllers(const settings::Storage &data,
5218	bool aRegistered,
5219	const Guid aSnapshotId / = NULL */)
5220	{
5221	AssertReturn (mType == IsMachine \|\| mType == IsSnapshotMachine, E_FAIL);
5222
5223	HRESULT rc = S_OK;
5224
5225	/* Make sure the attached hard disks don't get unregistered until we
5226	* associate them with tis machine (important for VMs loaded (opened) after
5227	* VirtualBox startup) */
5228	AutoReadLock vboxLock(mParent);
5229
5230	for (settings::StorageControllersList::const_iterator it = data.llStorageControllers.begin();
5231	it != data.llStorageControllers.end();
5232	++it)
5233	{
5234	const settings::StorageController &ctlData = *it;
5235
5236	ComObjPtr<StorageController> pCtl;
5237	/* Try to find one with the name first. */
5238	rc = getStorageControllerByName(ctlData.strName, pCtl, false /* aSetError */);
5239	if (SUCCEEDED(rc))
5240	return setError(VBOX_E_OBJECT_IN_USE,
5241	tr("Storage controller named '%s' already exists"),
5242	ctlData.strName.raw());
5243
5244	pCtl.createObject();
5245	rc = pCtl->init(this,
5246	ctlData.strName,
5247	ctlData.storageBus);
5248	CheckComRCReturnRC (rc);
5249
5250	mStorageControllers->push_back(pCtl);
5251
5252	rc = pCtl->COMSETTER(ControllerType)(ctlData.controllerType);
5253	CheckComRCReturnRC (rc);
5254
5255	rc = pCtl->COMSETTER(PortCount)(ctlData.ulPortCount);
5256	CheckComRCReturnRC (rc);
5257
5258	/* Set IDE emulation settings (only for AHCI controller). */
5259	if (ctlData.controllerType == StorageControllerType_IntelAhci)
5260	{
5261	if ( (FAILED(rc = pCtl->SetIDEEmulationPort(0, ctlData.lIDE0MasterEmulationPort)))
5262	\|\| (FAILED(rc = pCtl->SetIDEEmulationPort(1, ctlData.lIDE0SlaveEmulationPort)))
5263	\|\| (FAILED(rc = pCtl->SetIDEEmulationPort(2, ctlData.lIDE1MasterEmulationPort)))
5264	\|\| (FAILED(rc = pCtl->SetIDEEmulationPort(3, ctlData.lIDE1SlaveEmulationPort)))
5265	)
5266	return rc;
5267	}
5268
5269	/* Load the attached devices now. */
5270	rc = loadStorageDevices(pCtl,
5271	ctlData,
5272	aRegistered,
5273	aSnapshotId);
5274	CheckComRCReturnRC (rc);
5275	}
5276
5277	return S_OK;
5278	}
5279
5280	/**
5281	* @param aNode <HardDiskAttachments> node.
5282	* @param aRegistered true when the machine is being loaded on VirtualBox
5283	* startup, or when a snapshot is being loaded (wchich
5284	* currently can happen on startup only)
5285	* @param aSnapshotId pointer to the snapshot ID if this is a snapshot machine
5286	*
5287	* @note Lock mParent for reading and hard disks for writing before calling.
5288	*/
5289	HRESULT Machine::loadStorageDevices(StorageController *aStorageController,
5290	const settings::StorageController &data,
5291	bool aRegistered,
5292	const Guid aSnapshotId /= NULL*/)
5293	{
5294	AssertReturn ((mType == IsMachine && aSnapshotId == NULL) \|\|
5295	(mType == IsSnapshotMachine && aSnapshotId != NULL), E_FAIL);
5296
5297	HRESULT rc = S_OK;
5298
5299	if (!aRegistered && data.llAttachedDevices.size() > 0)
5300	/* when the machine is being loaded (opened) from a file, it cannot
5301	* have hard disks attached (this should not happen normally,
5302	* because we don't allow to attach hard disks to an unregistered
5303	* VM at all */
5304	return setError(E_FAIL,
5305	tr("Unregistered machine '%ls' cannot have storage devices attached (found %d attachments)"),
5306	mUserData->mName.raw(),
5307	data.llAttachedDevices.size());
5308
5309	/* paranoia: detect duplicate attachments */
5310	for (settings::AttachedDevicesList::const_iterator it = data.llAttachedDevices.begin();
5311	it != data.llAttachedDevices.end();
5312	++it)
5313	{
5314	for (settings::AttachedDevicesList::const_iterator it2 = it;
5315	it2 != data.llAttachedDevices.end();
5316	++it2)
5317	{
5318	if (it == it2)
5319	continue;
5320
5321	if ( (it).lPort == (it2).lPort
5322	&& (it).lDevice == (it2).lDevice)
5323	{
5324	return setError(E_FAIL,
5325	tr("Duplicate attachments for storage controller '%s', port %d, device %d of the virtual machine '%ls'"),
5326	aStorageController->name().raw(), (it).lPort, (it).lDevice, mUserData->mName.raw());
5327	}
5328	}
5329	}
5330
5331	for (settings::AttachedDevicesList::const_iterator it = data.llAttachedDevices.begin();
5332	it != data.llAttachedDevices.end();
5333	++it)
5334	{
5335	const settings::AttachedDevice &dev = *it;
5336	ComObjPtr<Medium> medium;
5337
5338	switch (dev.deviceType)
5339	{
5340	case DeviceType_Floppy:
5341	/* find a floppy by UUID */
5342	if (!dev.uuid.isEmpty())
5343	rc = mParent->findFloppyImage(&dev.uuid, NULL, true /* aDoSetError */, &medium);
5344	/* find a floppy by host device name */
5345	else if (!dev.strHostDriveSrc.isEmpty())
5346	{
5347	SafeIfaceArray<IMedium> drivevec;
5348	rc = mParent->host()->COMGETTER(FloppyDrives)(ComSafeArrayAsOutParam(drivevec));
5349	if (SUCCEEDED(rc))
5350	{
5351	for (size_t i = 0; i < drivevec.size(); ++i)
5352	{
5353	Bstr hostDriveSrc(dev.strHostDriveSrc);
5354	/// @todo eliminate this conversion
5355	ComObjPtr<Medium> med = (Medium *)drivevec[i];
5356	if ( hostDriveSrc == med->name()
5357	\|\| hostDriveSrc == med->location())
5358	{
5359	medium = med;
5360	break;
5361	}
5362	}
5363	}
5364	}
5365	break;
5366
5367	case DeviceType_DVD:
5368	/* find a DVD by UUID */
5369	if (!dev.uuid.isEmpty())
5370	rc = mParent->findDVDImage(&dev.uuid, NULL, true /* aDoSetError */, &medium);
5371	/* find a DVD by host device name */
5372	else if (!dev.strHostDriveSrc.isEmpty())
5373	{
5374	SafeIfaceArray<IMedium> drivevec;
5375	rc = mParent->host()->COMGETTER(DVDDrives)(ComSafeArrayAsOutParam(drivevec));
5376	if (SUCCEEDED(rc))
5377	{
5378	for (size_t i = 0; i < drivevec.size(); ++i)
5379	{
5380	Bstr hostDriveSrc(dev.strHostDriveSrc);
5381	/// @todo eliminate this conversion
5382	ComObjPtr<Medium> med = (Medium *)drivevec[i];
5383	if ( hostDriveSrc == med->name()
5384	\|\| hostDriveSrc == med->location())
5385	{
5386	medium = med;
5387	break;
5388	}
5389	}
5390	}
5391	}
5392	break;
5393
5394	case DeviceType_HardDisk:
5395	{
5396	/* find a hard disk by UUID */
5397	rc = mParent->findHardDisk(&dev.uuid, NULL, true /* aDoSetError */, &medium);
5398	CheckComRCReturnRC(rc);
5399
5400	AutoWriteLock hdLock(medium);
5401
5402	if (medium->type() == MediumType_Immutable)
5403	{
5404	if (mType == IsSnapshotMachine)
5405	return setError(E_FAIL,
5406	tr("Immutable hard disk '%ls' with UUID {%RTuuid} cannot be directly attached to snapshot with UUID {%RTuuid} "
5407	"of the virtual machine '%ls' ('%s')"),
5408	medium->locationFull().raw(),
5409	dev.uuid.raw(),
5410	aSnapshotId->raw(),
5411	mUserData->mName.raw(),
5412	mData->m_strConfigFileFull.raw());
5413
5414	return setError(E_FAIL,
5415	tr("Immutable hard disk '%ls' with UUID {%RTuuid} cannot be directly attached to the virtual machine '%ls' ('%s')"),
5416	medium->locationFull().raw(),
5417	dev.uuid.raw(),
5418	mUserData->mName.raw(),
5419	mData->m_strConfigFileFull.raw());
5420	}
5421
5422	if ( mType != IsSnapshotMachine
5423	&& medium->children().size() != 0
5424	)
5425	return setError(E_FAIL,
5426	tr("Hard disk '%ls' with UUID {%RTuuid} cannot be directly attached to the virtual machine '%ls' ('%s') "
5427	"because it has %d differencing child hard disks"),
5428	medium->locationFull().raw(),
5429	dev.uuid.raw(),
5430	mUserData->mName.raw(),
5431	mData->m_strConfigFileFull.raw(),
5432	medium->children().size());
5433
5434	if (findAttachment(mMediaData->mAttachments,
5435	medium))
5436	return setError(E_FAIL,
5437	tr("Hard disk '%ls' with UUID {%RTuuid} is already attached to the virtual machine '%ls' ('%s')"),
5438	medium->locationFull().raw(),
5439	dev.uuid.raw(),
5440	mUserData->mName.raw(),
5441	mData->m_strConfigFileFull.raw());
5442
5443	break;
5444	}
5445
5446	default:
5447	return setError(E_FAIL,
5448	tr("Device with unknown type is attached to the virtual machine '%ls' ('%s')"),
5449	medium->locationFull().raw(),
5450	mUserData->mName.raw(),
5451	mData->m_strConfigFileFull.raw());
5452	}
5453
5454	if (rc)
5455	break;
5456
5457	const Bstr controllerName = aStorageController->name();
5458	ComObjPtr<MediumAttachment> pAttachment;
5459	pAttachment.createObject();
5460	rc = pAttachment->init(this,
5461	medium,
5462	controllerName,
5463	dev.lPort,
5464	dev.lDevice,
5465	dev.deviceType);
5466	CheckComRCBreakRC(rc);
5467
5468	if (dev.deviceType == DeviceType_HardDisk)
5469	{
5470	/* associate the hard disk with this machine and snapshot */
5471	if (mType == IsSnapshotMachine)
5472	rc = medium->attachTo(mData->mUuid, *aSnapshotId);
5473	else
5474	rc = medium->attachTo(mData->mUuid);
5475	AssertComRCBreakRC (rc);
5476	}
5477
5478	/* backup mHDData to let registeredInit() properly rollback on failure
5479	* (= limited accessibility) */
5480
5481	mMediaData.backup();
5482	mMediaData->mAttachments.push_back(pAttachment);
5483	}
5484
5485	return rc;
5486	}
5487
5488	/**
5489	* Returns the snapshot with the given UUID or fails of no such snapshot exists.
5490	*
5491	* @param aId snapshot UUID to find (empty UUID refers the first snapshot)
5492	* @param aSnapshot where to return the found snapshot
5493	* @param aSetError true to set extended error info on failure
5494	*/
5495	HRESULT Machine::findSnapshot(const Guid &aId,
5496	ComObjPtr<Snapshot> &aSnapshot,
5497	bool aSetError /* = false */)
5498	{
5499	AutoReadLock chlock(snapshotsTreeLockHandle());
5500
5501	if (!mData->mFirstSnapshot)
5502	{
5503	if (aSetError)
5504	return setError(E_FAIL,
5505	tr("This machine does not have any snapshots"));
5506	return E_FAIL;
5507	}
5508
5509	if (aId.isEmpty())
5510	aSnapshot = mData->mFirstSnapshot;
5511	else
5512	aSnapshot = mData->mFirstSnapshot->findChildOrSelf(aId);
5513
5514	if (!aSnapshot)
5515	{
5516	if (aSetError)
5517	return setError(E_FAIL,
5518	tr("Could not find a snapshot with UUID {%s}"),
5519	aId.toString().raw());
5520	return E_FAIL;
5521	}
5522
5523	return S_OK;
5524	}
5525
5526	/**
5527	* Returns the snapshot with the given name or fails of no such snapshot.
5528	*
5529	* @param aName snapshot name to find
5530	* @param aSnapshot where to return the found snapshot
5531	* @param aSetError true to set extended error info on failure
5532	*/
5533	HRESULT Machine::findSnapshot(IN_BSTR aName,
5534	ComObjPtr<Snapshot> &aSnapshot,
5535	bool aSetError /* = false */)
5536	{
5537	AssertReturn(aName, E_INVALIDARG);
5538
5539	AutoReadLock chlock(snapshotsTreeLockHandle());
5540
5541	if (!mData->mFirstSnapshot)
5542	{
5543	if (aSetError)
5544	return setError(VBOX_E_OBJECT_NOT_FOUND,
5545	tr("This machine does not have any snapshots"));
5546	return VBOX_E_OBJECT_NOT_FOUND;
5547	}
5548
5549	aSnapshot = mData->mFirstSnapshot->findChildOrSelf (aName);
5550
5551	if (!aSnapshot)
5552	{
5553	if (aSetError)
5554	return setError(VBOX_E_OBJECT_NOT_FOUND,
5555	tr("Could not find a snapshot named '%ls'"), aName);
5556	return VBOX_E_OBJECT_NOT_FOUND;
5557	}
5558
5559	return S_OK;
5560	}
5561
5562	/**
5563	* Returns a storage controller object with the given name.
5564	*
5565	* @param aName storage controller name to find
5566	* @param aStorageController where to return the found storage controller
5567	* @param aSetError true to set extended error info on failure
5568	*/
5569	HRESULT Machine::getStorageControllerByName(const Utf8Str &aName,
5570	ComObjPtr<StorageController> &aStorageController,
5571	bool aSetError /* = false */)
5572	{
5573	AssertReturn (!aName.isEmpty(), E_INVALIDARG);
5574
5575	for (StorageControllerList::const_iterator it = mStorageControllers->begin();
5576	it != mStorageControllers->end();
5577	++it)
5578	{
5579	if ((*it)->name() == aName)
5580	{
5581	aStorageController = (*it);
5582	return S_OK;
5583	}
5584	}
5585
5586	if (aSetError)
5587	return setError(VBOX_E_OBJECT_NOT_FOUND,
5588	tr("Could not find a storage controller named '%s'"),
5589	aName.raw());
5590	return VBOX_E_OBJECT_NOT_FOUND;
5591	}
5592
5593	HRESULT Machine::getMediumAttachmentsOfController(CBSTR aName,
5594	MediaData::AttachmentList &atts)
5595	{
5596	AutoCaller autoCaller(this);
5597	CheckComRCReturnRC(autoCaller.rc());
5598
5599	AutoReadLock alock(this);
5600
5601	for (MediaData::AttachmentList::iterator it = mMediaData->mAttachments.begin();
5602	it != mMediaData->mAttachments.end();
5603	++it)
5604	{
5605	if ((*it)->controller() == aName)
5606	atts.push_back(*it);
5607	}
5608
5609	return S_OK;
5610	}
5611
5612	/**
5613	* Helper for #saveSettings. Cares about renaming the settings directory and
5614	* file if the machine name was changed and about creating a new settings file
5615	* if this is a new machine.
5616	*
5617	* @note Must be never called directly but only from #saveSettings().
5618	*
5619	* @param aRenamed receives \|true\| if the name was changed and the settings
5620	* file was renamed as a result, or \|false\| otherwise. The
5621	* value makes sense only on success.
5622	* @param aNew receives \|true\| if a virgin settings file was created.
5623	*/
5624	HRESULT Machine::prepareSaveSettings(bool &aRenamed,
5625	bool &aNew)
5626	{
5627	/* Note: tecnhically, mParent needs to be locked only when the machine is
5628	* registered (see prepareSaveSettings() for details) but we don't
5629	* currently differentiate it in callers of saveSettings() so we don't
5630	* make difference here too. */
5631	AssertReturn(mParent->isWriteLockOnCurrentThread(), E_FAIL);
5632	AssertReturn(isWriteLockOnCurrentThread(), E_FAIL);
5633
5634	HRESULT rc = S_OK;
5635
5636	aRenamed = false;
5637
5638	/* if we're ready and isConfigLocked() is FALSE then it means
5639	* that no config file exists yet (we will create a virgin one) */
5640	aNew = !mData->m_pMachineConfigFile->fileExists();
5641
5642	/* attempt to rename the settings file if machine name is changed */
5643	if ( mUserData->mNameSync
5644	&& mUserData.isBackedUp()
5645	&& mUserData.backedUpData()->mName != mUserData->mName
5646	)
5647	{
5648	aRenamed = true;
5649
5650	bool dirRenamed = false;
5651	bool fileRenamed = false;
5652
5653	Utf8Str configFile, newConfigFile;
5654	Utf8Str configDir, newConfigDir;
5655
5656	do
5657	{
5658	int vrc = VINF_SUCCESS;
5659
5660	Utf8Str name = mUserData.backedUpData()->mName;
5661	Utf8Str newName = mUserData->mName;
5662
5663	configFile = mData->m_strConfigFileFull;
5664
5665	/* first, rename the directory if it matches the machine name */
5666	configDir = configFile;
5667	configDir.stripFilename();
5668	newConfigDir = configDir;
5669	if (!strcmp(RTPathFilename(configDir.c_str()), name.c_str()))
5670	{
5671	newConfigDir.stripFilename();
5672	newConfigDir = Utf8StrFmt ("%s%c%s",
5673	newConfigDir.raw(), RTPATH_DELIMITER, newName.raw());
5674	/* new dir and old dir cannot be equal here because of 'if'
5675	* above and because name != newName */
5676	Assert (configDir != newConfigDir);
5677	if (!aNew)
5678	{
5679	/* perform real rename only if the machine is not new */
5680	vrc = RTPathRename (configDir.raw(), newConfigDir.raw(), 0);
5681	if (RT_FAILURE(vrc))
5682	{
5683	rc = setError(E_FAIL,
5684	tr("Could not rename the directory '%s' to '%s' to save the settings file (%Rrc)"),
5685	configDir.raw(),
5686	newConfigDir.raw(),
5687	vrc);
5688	break;
5689	}
5690	dirRenamed = true;
5691	}
5692	}
5693
5694	newConfigFile = Utf8StrFmt ("%s%c%s.xml",
5695	newConfigDir.raw(), RTPATH_DELIMITER, newName.raw());
5696
5697	/* then try to rename the settings file itself */
5698	if (newConfigFile != configFile)
5699	{
5700	/* get the path to old settings file in renamed directory */
5701	configFile = Utf8StrFmt("%s%c%s",
5702	newConfigDir.raw(),
5703	RTPATH_DELIMITER,
5704	RTPathFilename(configFile.c_str()));
5705	if (!aNew)
5706	{
5707	/* perform real rename only if the machine is not new */
5708	vrc = RTFileRename (configFile.raw(), newConfigFile.raw(), 0);
5709	if (RT_FAILURE(vrc))
5710	{
5711	rc = setError(E_FAIL,
5712	tr("Could not rename the settings file '%s' to '%s' (%Rrc)"),
5713	configFile.raw(),
5714	newConfigFile.raw(),
5715	vrc);
5716	break;
5717	}
5718	fileRenamed = true;
5719	}
5720	}
5721
5722	/* update m_strConfigFileFull amd mConfigFile */
5723	Utf8Str oldConfigFileFull = mData->m_strConfigFileFull;
5724	Utf8Str oldConfigFile = mData->m_strConfigFile;
5725	mData->m_strConfigFileFull = newConfigFile;
5726	/* try to get the relative path for mConfigFile */
5727	Utf8Str path = newConfigFile;
5728	mParent->calculateRelativePath (path, path);
5729	mData->m_strConfigFile = path;
5730
5731	/* last, try to update the global settings with the new path */
5732	if (mData->mRegistered)
5733	{
5734	rc = mParent->updateSettings(configDir.c_str(), newConfigDir.c_str());
5735	if (FAILED(rc))
5736	{
5737	/* revert to old values */
5738	mData->m_strConfigFileFull = oldConfigFileFull;
5739	mData->m_strConfigFile = oldConfigFile;
5740	break;
5741	}
5742	}
5743
5744	/* update the snapshot folder */
5745	path = mUserData->mSnapshotFolderFull;
5746	if (RTPathStartsWith(path.c_str(), configDir.c_str()))
5747	{
5748	path = Utf8StrFmt("%s%s", newConfigDir.raw(),
5749	path.raw() + configDir.length());
5750	mUserData->mSnapshotFolderFull = path;
5751	calculateRelativePath (path, path);
5752	mUserData->mSnapshotFolder = path;
5753	}
5754
5755	/* update the saved state file path */
5756	path = mSSData->mStateFilePath;
5757	if (RTPathStartsWith(path.c_str(), configDir.c_str()))
5758	{
5759	path = Utf8StrFmt("%s%s", newConfigDir.raw(),
5760	path.raw() + configDir.length());
5761	mSSData->mStateFilePath = path;
5762	}
5763
5764	/* Update saved state file paths of all online snapshots.
5765	* Note that saveSettings() will recognize name change
5766	* and will save all snapshots in this case. */
5767	if (mData->mFirstSnapshot)
5768	mData->mFirstSnapshot->updateSavedStatePaths(configDir.c_str(),
5769	newConfigDir.c_str());
5770	}
5771	while (0);
5772
5773	if (FAILED(rc))
5774	{
5775	/* silently try to rename everything back */
5776	if (fileRenamed)
5777	RTFileRename(newConfigFile.raw(), configFile.raw(), 0);
5778	if (dirRenamed)
5779	RTPathRename(newConfigDir.raw(), configDir.raw(), 0);
5780	}
5781
5782	CheckComRCReturnRC(rc);
5783	}
5784
5785	if (aNew)
5786	{
5787	/* create a virgin config file */
5788	int vrc = VINF_SUCCESS;
5789
5790	/* ensure the settings directory exists */
5791	Utf8Str path(mData->m_strConfigFileFull);
5792	path.stripFilename();
5793	if (!RTDirExists(path.c_str()))
5794	{
5795	vrc = RTDirCreateFullPath(path.c_str(), 0777);
5796	if (RT_FAILURE(vrc))
5797	{
5798	return setError(E_FAIL,
5799	tr("Could not create a directory '%s' to save the settings file (%Rrc)"),
5800	path.raw(),
5801	vrc);
5802	}
5803	}
5804
5805	/* Note: open flags must correlate with RTFileOpen() in lockConfig() */
5806	path = Utf8Str(mData->m_strConfigFileFull);
5807	vrc = RTFileOpen(&mData->mHandleCfgFile, path.c_str(),
5808	RTFILE_O_READWRITE \| RTFILE_O_CREATE \|
5809	RTFILE_O_DENY_WRITE);
5810	if (RT_FAILURE(vrc))
5811	{
5812	mData->mHandleCfgFile = NIL_RTFILE;
5813	return setError(E_FAIL,
5814	tr("Could not create the settings file '%s' (%Rrc)"),
5815	path.raw(),
5816	vrc);
5817	}
5818	RTFileClose(mData->mHandleCfgFile);
5819	}
5820
5821	return rc;
5822	}
5823
5824	/**
5825	* Saves and commits machine data, user data and hardware data.
5826	*
5827	* Note that on failure, the data remains uncommitted.
5828	*
5829	* @a aFlags may combine the following flags:
5830	*
5831	* - SaveS_ResetCurStateModified: Resets mData->mCurrentStateModified to FALSE.
5832	* Used when saving settings after an operation that makes them 100%
5833	* correspond to the settings from the current snapshot.
5834	* - SaveS_InformCallbacksAnyway: Callbacks will be informed even if
5835	* #isReallyModified() returns false. This is necessary for cases when we
5836	* change machine data diectly, not through the backup()/commit() mechanism.
5837	*
5838	* @note Must be called from under mParent write lock (sometimes needed by
5839	* #prepareSaveSettings()) and this object's write lock. Locks children for
5840	* writing. There is one exception when mParent is unused and therefore may be
5841	* left unlocked: if this machine is an unregistered one.
5842	*/
5843	HRESULT Machine::saveSettings(int aFlags /= 0/)
5844	{
5845	LogFlowThisFuncEnter();
5846
5847	/* Note: tecnhically, mParent needs to be locked only when the machine is
5848	* registered (see prepareSaveSettings() for details) but we don't
5849	* currently differentiate it in callers of saveSettings() so we don't
5850	* make difference here too. */
5851	AssertReturn(mParent->isWriteLockOnCurrentThread(), E_FAIL);
5852	AssertReturn(isWriteLockOnCurrentThread(), E_FAIL);
5853
5854	/* make sure child objects are unable to modify the settings while we are
5855	* saving them */
5856	ensureNoStateDependencies();
5857
5858	AssertReturn(mType == IsMachine \|\| mType == IsSessionMachine, E_FAIL);
5859
5860	BOOL currentStateModified = mData->mCurrentStateModified;
5861	bool settingsModified;
5862
5863	if (!(aFlags & SaveS_ResetCurStateModified) && !currentStateModified)
5864	{
5865	/* We ignore changes to user data when setting mCurrentStateModified
5866	* because the current state will not differ from the current snapshot
5867	* if only user data has been changed (user data is shared by all
5868	* snapshots). */
5869	currentStateModified = isReallyModified (true /* aIgnoreUserData */);
5870	settingsModified = mUserData.hasActualChanges() \|\| currentStateModified;
5871	}
5872	else
5873	{
5874	if (aFlags & SaveS_ResetCurStateModified)
5875	currentStateModified = FALSE;
5876	settingsModified = isReallyModified();
5877	}
5878
5879	HRESULT rc = S_OK;
5880
5881	/* First, prepare to save settings. It will care about renaming the
5882	* settings directory and file if the machine name was changed and about
5883	* creating a new settings file if this is a new machine. */
5884	bool isRenamed = false;
5885	bool isNew = false;
5886	rc = prepareSaveSettings(isRenamed, isNew);
5887	CheckComRCReturnRC(rc);
5888
5889	try
5890	{
5891	mData->m_pMachineConfigFile->uuid = mData->mUuid;
5892	mData->m_pMachineConfigFile->strName = mUserData->mName;
5893	mData->m_pMachineConfigFile->fNameSync = !!mUserData->mNameSync;
5894	mData->m_pMachineConfigFile->strDescription = mUserData->mDescription;
5895	mData->m_pMachineConfigFile->strOsType = mUserData->mOSTypeId;
5896
5897	if ( mData->mMachineState == MachineState_Saved
5898	\|\| mData->mMachineState == MachineState_Restoring
5899	)
5900	{
5901	Assert(!mSSData->mStateFilePath.isEmpty());
5902	/* try to make the file name relative to the settings file dir */
5903	Utf8Str stateFilePath = mSSData->mStateFilePath;
5904	calculateRelativePath(stateFilePath, stateFilePath);
5905
5906	mData->m_pMachineConfigFile->strStateFile = stateFilePath;
5907	}
5908	else
5909	{
5910	Assert(mSSData->mStateFilePath.isNull());
5911	mData->m_pMachineConfigFile->strStateFile.setNull();
5912	}
5913
5914	if (mData->mCurrentSnapshot)
5915	mData->m_pMachineConfigFile->uuidCurrentSnapshot = mData->mCurrentSnapshot->getId();
5916	else
5917	mData->m_pMachineConfigFile->uuidCurrentSnapshot.clear();
5918
5919	mData->m_pMachineConfigFile->strSnapshotFolder = mUserData->mSnapshotFolder;
5920	mData->m_pMachineConfigFile->fCurrentStateModified = !!currentStateModified;
5921	mData->m_pMachineConfigFile->timeLastStateChange = mData->mLastStateChange;
5922	mData->m_pMachineConfigFile->fAborted = (mData->mMachineState == MachineState_Aborted);
5923
5924	rc = saveHardware(mData->m_pMachineConfigFile->hardwareMachine);
5925	CheckComRCThrowRC(rc);
5926
5927	rc = saveStorageControllers(mData->m_pMachineConfigFile->storageMachine);
5928	CheckComRCThrowRC(rc);
5929
5930	// save snapshots
5931	rc = saveAllSnapshots();
5932	CheckComRCThrowRC(rc);
5933
5934	// now spit it all out
5935	mData->m_pMachineConfigFile->write(mData->m_strConfigFileFull);
5936	}
5937	catch (HRESULT err)
5938	{
5939	/* we assume that error info is set by the thrower */
5940	rc = err;
5941	}
5942	catch (...)
5943	{
5944	rc = VirtualBox::handleUnexpectedExceptions (RT_SRC_POS);
5945	}
5946
5947	if (SUCCEEDED(rc))
5948	{
5949	commit();
5950
5951	/* memorize the new modified state */
5952	mData->mCurrentStateModified = currentStateModified;
5953	}
5954
5955	if (settingsModified \|\| (aFlags & SaveS_InformCallbacksAnyway))
5956	{
5957	/* Fire the data change event, even on failure (since we've already
5958	* committed all data). This is done only for SessionMachines because
5959	* mutable Machine instances are always not registered (i.e. private
5960	* to the client process that creates them) and thus don't need to
5961	* inform callbacks. */
5962	if (mType == IsSessionMachine)
5963	mParent->onMachineDataChange(mData->mUuid);
5964	}
5965
5966	LogFlowThisFunc(("rc=%08X\n", rc));
5967	LogFlowThisFuncLeave();
5968	return rc;
5969	}
5970
5971	HRESULT Machine::saveAllSnapshots()
5972	{
5973	AssertReturn (isWriteLockOnCurrentThread(), E_FAIL);
5974
5975	HRESULT rc = S_OK;
5976
5977	try
5978	{
5979	mData->m_pMachineConfigFile->llFirstSnapshot.clear();
5980
5981	if (mData->mFirstSnapshot)
5982	{
5983	settings::Snapshot snapNew;
5984	mData->m_pMachineConfigFile->llFirstSnapshot.push_back(snapNew);
5985
5986	// get reference to the fresh copy of the snapshot on the list and
5987	// work on that copy directly to avoid excessive copying later
5988	settings::Snapshot &snap = mData->m_pMachineConfigFile->llFirstSnapshot.front();
5989
5990	rc = mData->mFirstSnapshot->saveSnapshot(snap, false /aAttrsOnly/);
5991	CheckComRCThrowRC(rc);
5992	}
5993
5994	// if (mType == IsSessionMachine)
5995	// mParent->onMachineDataChange(mData->mUuid); @todo is this necessary?
5996
5997	}
5998	catch (HRESULT err)
5999	{
6000	/* we assume that error info is set by the thrower */
6001	rc = err;
6002	}
6003	catch (...)
6004	{
6005	rc = VirtualBox::handleUnexpectedExceptions (RT_SRC_POS);
6006	}
6007
6008	return rc;
6009	}
6010
6011	/**
6012	* Saves the VM hardware configuration. It is assumed that the
6013	* given node is empty.
6014	*
6015	* @param aNode <Hardware> node to save the VM hardware confguration to.
6016	*/
6017	HRESULT Machine::saveHardware(settings::Hardware &data)
6018	{
6019	HRESULT rc = S_OK;
6020
6021	try
6022	{
6023	/* The hardware version attribute (optional).
6024	Automatically upgrade from 1 to 2 when there is no saved state. (ugly!) */
6025	if ( mHWData->mHWVersion == "1"
6026	&& mSSData->mStateFilePath.isEmpty()
6027	)
6028	mHWData->mHWVersion = "2"; /** @todo Is this safe, to update mHWVersion here? If not some other point needs to be found where this can be done. */
6029
6030	data.strVersion = mHWData->mHWVersion;
6031
6032	// CPU
6033	data.fHardwareVirt = !!mHWData->mHWVirtExEnabled;
6034	data.fNestedPaging = !!mHWData->mHWVirtExNestedPagingEnabled;
6035	data.fVPID = !!mHWData->mHWVirtExVPIDEnabled;
6036	data.fPAE = !!mHWData->mPAEEnabled;
6037
6038	data.cCPUs = mHWData->mCPUCount;
6039
6040	// memory
6041	data.ulMemorySizeMB = mHWData->mMemorySize;
6042
6043	// firmware
6044	data.firmwareType = mHWData->mFirmwareType;
6045
6046	// boot order
6047	data.mapBootOrder.clear();
6048	for (size_t i = 0;
6049	i < RT_ELEMENTS(mHWData->mBootOrder);
6050	++i)
6051	data.mapBootOrder[i] = mHWData->mBootOrder[i];
6052
6053	// display
6054	data.ulVRAMSizeMB = mHWData->mVRAMSize;
6055	data.cMonitors = mHWData->mMonitorCount;
6056	data.fAccelerate3D = !!mHWData->mAccelerate3DEnabled;
6057	data.fAccelerate2DVideo = !!mHWData->mAccelerate2DVideoEnabled;
6058
6059	#ifdef VBOX_WITH_VRDP
6060	/* VRDP settings (optional) */
6061	rc = mVRDPServer->saveSettings(data.vrdpSettings);
6062	CheckComRCThrowRC(rc);
6063	#endif
6064
6065	/* BIOS (required) */
6066	rc = mBIOSSettings->saveSettings(data.biosSettings);
6067	CheckComRCThrowRC(rc);
6068
6069	/* USB Controller (required) */
6070	rc = mUSBController->saveSettings(data.usbController);
6071	CheckComRCThrowRC(rc);
6072
6073	/* Network adapters (required) */
6074	data.llNetworkAdapters.clear();
6075	for (ULONG slot = 0;
6076	slot < RT_ELEMENTS(mNetworkAdapters);
6077	++slot)
6078	{
6079	settings::NetworkAdapter nic;
6080	nic.ulSlot = slot;
6081	rc = mNetworkAdapters[slot]->saveSettings(nic);
6082	CheckComRCThrowRC(rc);
6083
6084	data.llNetworkAdapters.push_back(nic);
6085	}
6086
6087	/* Serial ports */
6088	data.llSerialPorts.clear();
6089	for (ULONG slot = 0;
6090	slot < RT_ELEMENTS(mSerialPorts);
6091	++slot)
6092	{
6093	settings::SerialPort s;
6094	s.ulSlot = slot;
6095	rc = mSerialPorts[slot]->saveSettings(s);
6096	CheckComRCReturnRC (rc);
6097
6098	data.llSerialPorts.push_back(s);
6099	}
6100
6101	/* Parallel ports */
6102	data.llParallelPorts.clear();
6103	for (ULONG slot = 0;
6104	slot < RT_ELEMENTS(mParallelPorts);
6105	++slot)
6106	{
6107	settings::ParallelPort p;
6108	p.ulSlot = slot;
6109	rc = mParallelPorts[slot]->saveSettings(p);
6110	CheckComRCReturnRC (rc);
6111
6112	data.llParallelPorts.push_back(p);
6113	}
6114
6115	/* Audio adapter */
6116	rc = mAudioAdapter->saveSettings(data.audioAdapter);
6117	CheckComRCReturnRC (rc);
6118
6119	/* Shared folders */
6120	data.llSharedFolders.clear();
6121	for (HWData::SharedFolderList::const_iterator it = mHWData->mSharedFolders.begin();
6122	it != mHWData->mSharedFolders.end();
6123	++it)
6124	{
6125	ComObjPtr<SharedFolder> pFolder = *it;
6126	settings::SharedFolder sf;
6127	sf.strName = pFolder->name();
6128	sf.strHostPath = pFolder->hostPath();
6129	sf.fWritable = !!pFolder->writable();
6130
6131	data.llSharedFolders.push_back(sf);
6132	}
6133
6134	// clipboard
6135	data.clipboardMode = mHWData->mClipboardMode;
6136
6137	/* Guest */
6138	data.ulMemoryBalloonSize = mHWData->mMemoryBalloonSize;
6139	data.ulStatisticsUpdateInterval = mHWData->mStatisticsUpdateInterval;
6140
6141	// guest properties
6142	data.llGuestProperties.clear();
6143	#ifdef VBOX_WITH_GUEST_PROPS
6144	for (HWData::GuestPropertyList::const_iterator it = mHWData->mGuestProperties.begin();
6145	it != mHWData->mGuestProperties.end();
6146	++it)
6147	{
6148	HWData::GuestProperty property = *it;
6149
6150	settings::GuestProperty prop;
6151	prop.strName = property.strName;
6152	prop.strValue = property.strValue;
6153	prop.timestamp = property.mTimestamp;
6154	char szFlags[guestProp::MAX_FLAGS_LEN + 1];
6155	guestProp::writeFlags(property.mFlags, szFlags);
6156	prop.strFlags = szFlags;
6157
6158	data.llGuestProperties.push_back(prop);
6159	}
6160
6161	data.strNotificationPatterns = mHWData->mGuestPropertyNotificationPatterns;
6162	#endif /* VBOX_WITH_GUEST_PROPS defined */
6163	}
6164	catch(std::bad_alloc &)
6165	{
6166	return E_OUTOFMEMORY;
6167	}
6168
6169	AssertComRC(rc);
6170	return rc;
6171	}
6172
6173	/**
6174	* Saves the storage controller configuration.
6175	*
6176	* @param aNode <StorageControllers> node to save the VM hardware confguration to.
6177	*/
6178	HRESULT Machine::saveStorageControllers(settings::Storage &data)
6179	{
6180	data.llStorageControllers.clear();
6181
6182	for (StorageControllerList::const_iterator it = mStorageControllers->begin();
6183	it != mStorageControllers->end();
6184	++it)
6185	{
6186	HRESULT rc;
6187	ComObjPtr<StorageController> pCtl = *it;
6188
6189	settings::StorageController ctl;
6190	ctl.strName = pCtl->name();
6191	ctl.controllerType = pCtl->controllerType();
6192	ctl.storageBus = pCtl->storageBus();
6193
6194	/* Save the port count. */
6195	ULONG portCount;
6196	rc = pCtl->COMGETTER(PortCount)(&portCount);
6197	ComAssertComRCRet(rc, rc);
6198	ctl.ulPortCount = portCount;
6199
6200	/* Save IDE emulation settings. */
6201	if (ctl.controllerType == StorageControllerType_IntelAhci)
6202	{
6203	if ( (FAILED(rc = pCtl->GetIDEEmulationPort(0, (LONG*)&ctl.lIDE0MasterEmulationPort)))
6204	\|\| (FAILED(rc = pCtl->GetIDEEmulationPort(1, (LONG*)&ctl.lIDE0SlaveEmulationPort)))
6205	\|\| (FAILED(rc = pCtl->GetIDEEmulationPort(2, (LONG*)&ctl.lIDE1MasterEmulationPort)))
6206	\|\| (FAILED(rc = pCtl->GetIDEEmulationPort(3, (LONG*)&ctl.lIDE1SlaveEmulationPort)))
6207	)
6208	ComAssertComRCRet(rc, rc);
6209	}
6210
6211	/* save the devices now. */
6212	rc = saveStorageDevices(pCtl, ctl);
6213	ComAssertComRCRet(rc, rc);
6214
6215	data.llStorageControllers.push_back(ctl);
6216	}
6217
6218	return S_OK;
6219	}
6220
6221	/**
6222	* Saves the hard disk confguration.
6223	*/
6224	HRESULT Machine::saveStorageDevices(ComObjPtr<StorageController> aStorageController,
6225	settings::StorageController &data)
6226	{
6227	using namespace settings;
6228
6229	MediaData::AttachmentList atts;
6230
6231	HRESULT rc = getMediumAttachmentsOfController(Bstr(aStorageController->name()), atts);
6232	CheckComRCReturnRC (rc);
6233
6234	data.llAttachedDevices.clear();
6235	for (MediaData::AttachmentList::const_iterator it = atts.begin();
6236	it != atts.end();
6237	++it)
6238	{
6239	settings::AttachedDevice dev;
6240
6241	dev.deviceType = (*it)->type();
6242	dev.lPort = (*it)->port();
6243	dev.lDevice = (*it)->device();
6244	if (!(*it)->medium().isNull())
6245	{
6246	BOOL fHostDrive = false;
6247	rc = (*it)->medium()->COMGETTER(HostDrive)(&fHostDrive);
6248	if (FAILED(rc))
6249	return rc;
6250	if (fHostDrive)
6251	dev.strHostDriveSrc = (*it)->medium()->location();
6252	else
6253	dev.uuid = (*it)->medium()->id();
6254	dev.fPassThrough = (*it)->passthrough();
6255	}
6256
6257	data.llAttachedDevices.push_back(dev);
6258	}
6259
6260	return S_OK;
6261	}
6262
6263	/**
6264	* Saves machine state settings as defined by aFlags
6265	* (SaveSTS_* values).
6266	*
6267	* @param aFlags Combination of SaveSTS_* flags.
6268	*
6269	* @note Locks objects for writing.
6270	*/
6271	HRESULT Machine::saveStateSettings(int aFlags)
6272	{
6273	if (aFlags == 0)
6274	return S_OK;
6275
6276	AutoCaller autoCaller (this);
6277	AssertComRCReturn(autoCaller.rc(), autoCaller.rc());
6278
6279	/* This object's write lock is also necessary to serialize file access
6280	* (prevent concurrent reads and writes) */
6281	AutoWriteLock alock(this);
6282
6283	HRESULT rc = S_OK;
6284
6285	Assert(mData->m_pMachineConfigFile);
6286
6287	try
6288	{
6289	if (aFlags & SaveSTS_CurStateModified)
6290	mData->m_pMachineConfigFile->fCurrentStateModified = true;
6291
6292	if (aFlags & SaveSTS_StateFilePath)
6293	{
6294	if (mSSData->mStateFilePath)
6295	{
6296	/* try to make the file name relative to the settings file dir */
6297	Utf8Str stateFilePath = mSSData->mStateFilePath;
6298	calculateRelativePath(stateFilePath, stateFilePath);
6299	mData->m_pMachineConfigFile->strStateFile = stateFilePath;
6300	}
6301	else
6302	mData->m_pMachineConfigFile->strStateFile.setNull();
6303	}
6304
6305	if (aFlags & SaveSTS_StateTimeStamp)
6306	{
6307	Assert( mData->mMachineState != MachineState_Aborted
6308	\|\| mSSData->mStateFilePath.isNull());
6309
6310	mData->m_pMachineConfigFile->timeLastStateChange = mData->mLastStateChange;
6311
6312	mData->m_pMachineConfigFile->fAborted = (mData->mMachineState == MachineState_Aborted);
6313	}
6314
6315	mData->m_pMachineConfigFile->write(mData->m_strConfigFileFull);
6316	}
6317	catch (...)
6318	{
6319	rc = VirtualBox::handleUnexpectedExceptions (RT_SRC_POS);
6320	}
6321
6322	return rc;
6323	}
6324
6325	/**
6326	* Creates differencing hard disks for all normal hard disks attached to this
6327	* machine and a new set of attachments to refer to created disks.
6328	*
6329	* Used when taking a snapshot or when discarding the current state.
6330	*
6331	* This method assumes that mHDData contains the original hard disk attachments
6332	* it needs to create diffs for. On success, these attachments will be replaced
6333	* with the created diffs. On failure, #deleteImplicitDiffs() is implicitly
6334	* called to delete created diffs which will also rollback mHDData and restore
6335	* whatever was backed up before calling this method.
6336	*
6337	* Attachments with non-normal hard disks are left as is.
6338	*
6339	* If @a aOnline is @c false then the original hard disks that require implicit
6340	* diffs will be locked for reading. Otherwise it is assumed that they are
6341	* already locked for writing (when the VM was started). Note that in the latter
6342	* case it is responsibility of the caller to lock the newly created diffs for
6343	* writing if this method succeeds.
6344	*
6345	* @param aFolder Folder where to create diff hard disks.
6346	* @param aProgress Progress object to run (must contain at least as
6347	* many operations left as the number of hard disks
6348	* attached).
6349	* @param aOnline Whether the VM was online prior to this operation.
6350	*
6351	* @note The progress object is not marked as completed, neither on success nor
6352	* on failure. This is a responsibility of the caller.
6353	*
6354	* @note Locks this object for writing.
6355	*/
6356	HRESULT Machine::createImplicitDiffs(const Bstr &aFolder,
6357	IProgress *aProgress,
6358	ULONG aWeight,
6359	bool aOnline)
6360	{
6361	AssertReturn(!aFolder.isEmpty(), E_FAIL);
6362
6363	LogFlowThisFunc(("aFolder='%ls', aOnline=%d\n", aFolder.raw(), aOnline));
6364
6365	AutoCaller autoCaller(this);
6366	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6367
6368	AutoWriteLock alock(this);
6369
6370	/* must be in a protective state because we leave the lock below */
6371	AssertReturn(mData->mMachineState == MachineState_Saving \|\|
6372	mData->mMachineState == MachineState_Discarding, E_FAIL);
6373
6374	HRESULT rc = S_OK;
6375
6376	typedef std::list< ComObjPtr<Medium> > LockedMedia;
6377	LockedMedia lockedMedia;
6378
6379	try
6380	{
6381	if (!aOnline)
6382	{
6383	/* lock all attached hard disks early to detect "in use"
6384	* situations before creating actual diffs */
6385	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
6386	it != mMediaData->mAttachments.end();
6387	++it)
6388	{
6389	MediumAttachment* pAtt = *it;
6390	if (pAtt->type() == DeviceType_HardDisk)
6391	{
6392	Medium* pHD = pAtt->medium();
6393	Assert(pHD);
6394	rc = pHD->LockRead (NULL);
6395	CheckComRCThrowRC(rc);
6396	lockedMedia.push_back(pHD);
6397	}
6398	}
6399	}
6400
6401	/* remember the current list (note that we don't use backup() since
6402	* mHDData may be already backed up) */
6403	MediaData::AttachmentList atts = mMediaData->mAttachments;
6404
6405	/* start from scratch */
6406	mMediaData->mAttachments.clear();
6407
6408	/* go through remembered attachments and create diffs for normal hard
6409	* disks and attach them */
6410	for (MediaData::AttachmentList::const_iterator it = atts.begin();
6411	it != atts.end();
6412	++it)
6413	{
6414	MediumAttachment* pAtt = *it;
6415	if (pAtt->type() != DeviceType_HardDisk)
6416	continue;
6417
6418	Medium* pHD = pAtt->medium();
6419	Assert(pHD);
6420	/* type cannot be changed while attached => no need to lock */
6421	if (pHD->type() != MediumType_Normal)
6422	{
6423	/* copy the attachment as is */
6424	Assert(pHD->type() == MediumType_Writethrough);
6425	aProgress->SetNextOperation(BstrFmt(tr("Skipping medium '%s'"),
6426	pHD->base()->name().raw()),
6427	aWeight); // weight
6428
6429	mMediaData->mAttachments.push_back(pAtt);
6430	continue;
6431	}
6432
6433	/* need a diff */
6434	aProgress->SetNextOperation(BstrFmt(tr("Creating differencing hard disk for '%s'"),
6435	pHD->base()->name().raw()),
6436	aWeight); // weight
6437
6438	ComObjPtr<Medium> diff;
6439	diff.createObject();
6440	rc = diff->init(mParent,
6441	pHD->preferredDiffFormat().raw(),
6442	BstrFmt("%ls"RTPATH_SLASH_STR,
6443	mUserData->mSnapshotFolderFull.raw()).raw());
6444	CheckComRCThrowRC(rc);
6445
6446	/* leave the lock before the potentially lengthy operation */
6447	alock.leave();
6448
6449	rc = pHD->createDiffStorageAndWait(diff,
6450	MediumVariant_Standard,
6451	NULL);
6452
6453	// at this point, the old image is still locked for writing, but instead
6454	// we need the new diff image locked for writing and lock the previously
6455	// current one for reading only
6456	if (aOnline)
6457	{
6458	diff->LockWrite(NULL);
6459	mData->mSession.mLockedMedia.push_back(Data::Session::LockedMedia::value_type(ComPtr<IMedium>(diff), true));
6460	pHD->UnlockWrite(NULL);
6461	pHD->LockRead(NULL);
6462	mData->mSession.mLockedMedia.push_back(Data::Session::LockedMedia::value_type(ComPtr<IMedium>(pHD), false));
6463	}
6464
6465	alock.enter();
6466
6467	CheckComRCThrowRC(rc);
6468
6469	rc = diff->attachTo(mData->mUuid);
6470	AssertComRCThrowRC(rc);
6471
6472	/* add a new attachment */
6473	ComObjPtr<MediumAttachment> attachment;
6474	attachment.createObject();
6475	rc = attachment->init(this,
6476	diff,
6477	pAtt->controller(),
6478	pAtt->port(),
6479	pAtt->device(),
6480	DeviceType_HardDisk,
6481	true /* aImplicit */);
6482	CheckComRCThrowRC(rc);
6483
6484	mMediaData->mAttachments.push_back(attachment);
6485	}
6486	}
6487	catch (HRESULT aRC) { rc = aRC; }
6488
6489	/* unlock all hard disks we locked */
6490	if (!aOnline)
6491	{
6492	ErrorInfoKeeper eik;
6493
6494	for (LockedMedia::const_iterator it = lockedMedia.begin();
6495	it != lockedMedia.end();
6496	++it)
6497	{
6498	HRESULT rc2 = (*it)->UnlockRead(NULL);
6499	AssertComRC(rc2);
6500	}
6501	}
6502
6503	if (FAILED(rc))
6504	{
6505	MultiResultRef mrc (rc);
6506
6507	mrc = deleteImplicitDiffs();
6508	}
6509
6510	return rc;
6511	}
6512
6513	/**
6514	* Deletes implicit differencing hard disks created either by
6515	* #createImplicitDiffs() or by #AttachMedium() and rolls back mHDData.
6516	*
6517	* Note that to delete hard disks created by #AttachMedium() this method is
6518	* called from #fixupMedia() when the changes are rolled back.
6519	*
6520	* @note Locks this object for writing.
6521	*/
6522	HRESULT Machine::deleteImplicitDiffs()
6523	{
6524	AutoCaller autoCaller(this);
6525	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6526
6527	AutoWriteLock alock(this);
6528
6529	AssertReturn(mMediaData.isBackedUp(), E_FAIL);
6530
6531	HRESULT rc = S_OK;
6532
6533	MediaData::AttachmentList implicitAtts;
6534
6535	const MediaData::AttachmentList &oldAtts = mMediaData.backedUpData()->mAttachments;
6536
6537	/* enumerate new attachments */
6538	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
6539	it != mMediaData->mAttachments.end();
6540	++it)
6541	{
6542	ComObjPtr<Medium> hd = (*it)->medium();
6543	if (hd.isNull())
6544	continue;
6545
6546	if ((*it)->isImplicit())
6547	{
6548	/* deassociate and mark for deletion */
6549	rc = hd->detachFrom(mData->mUuid);
6550	AssertComRC(rc);
6551	implicitAtts.push_back (*it);
6552	continue;
6553	}
6554
6555	/* was this hard disk attached before? */
6556	if (!findAttachment(oldAtts, hd))
6557	{
6558	/* no: de-associate */
6559	rc = hd->detachFrom(mData->mUuid);
6560	AssertComRC(rc);
6561	continue;
6562	}
6563	}
6564
6565	/* rollback hard disk changes */
6566	mMediaData.rollback();
6567
6568	MultiResult mrc (S_OK);
6569
6570	/* delete unused implicit diffs */
6571	if (implicitAtts.size() != 0)
6572	{
6573	/* will leave the lock before the potentially lengthy
6574	* operation, so protect with the special state (unless already
6575	* protected) */
6576	MachineState_T oldState = mData->mMachineState;
6577	if (oldState != MachineState_Saving &&
6578	oldState != MachineState_Discarding)
6579	{
6580	setMachineState (MachineState_SettingUp);
6581	}
6582
6583	alock.leave();
6584
6585	for (MediaData::AttachmentList::const_iterator it = implicitAtts.begin();
6586	it != implicitAtts.end();
6587	++it)
6588	{
6589	ComObjPtr<Medium> hd = (*it)->medium();
6590	mrc = hd->deleteStorageAndWait();
6591	}
6592
6593	alock.enter();
6594
6595	if (mData->mMachineState == MachineState_SettingUp)
6596	{
6597	setMachineState (oldState);
6598	}
6599	}
6600
6601	return mrc;
6602	}
6603
6604	/**
6605	* Looks through the given list of media attachments for one with the given parameters
6606	* and returns it, or NULL if not found. The list is a parameter so that backup lists
6607	* can be searched as well if needed.
6608	*
6609	* @param list
6610	* @param aControllerName
6611	* @param aControllerPort
6612	* @param aDevice
6613	* @return
6614	*/
6615	MediumAttachment* Machine::findAttachment(const MediaData::AttachmentList &ll,
6616	IN_BSTR aControllerName,
6617	LONG aControllerPort,
6618	LONG aDevice)
6619	{
6620	for (MediaData::AttachmentList::const_iterator it = ll.begin();
6621	it != ll.end();
6622	++it)
6623	{
6624	MediumAttachment pAttach = it;
6625	if (pAttach->matches(aControllerName, aControllerPort, aDevice))
6626	return pAttach;
6627	}
6628
6629	return NULL;
6630	}
6631
6632	/**
6633	* Looks through the given list of media attachments for one with the given parameters
6634	* and returns it, or NULL if not found. The list is a parameter so that backup lists
6635	* can be searched as well if needed.
6636	*
6637	* @param list
6638	* @param aControllerName
6639	* @param aControllerPort
6640	* @param aDevice
6641	* @return
6642	*/
6643	MediumAttachment* Machine::findAttachment(const MediaData::AttachmentList &ll,
6644	ComObjPtr<Medium> pMedium)
6645	{
6646	for (MediaData::AttachmentList::const_iterator it = ll.begin();
6647	it != ll.end();
6648	++it)
6649	{
6650	MediumAttachment pAttach = it;
6651	ComObjPtr<Medium> pMediumThis = pAttach->medium();
6652	if (pMediumThis.equalsTo(pMedium))
6653	return pAttach;
6654	}
6655
6656	return NULL;
6657	}
6658
6659	/**
6660	* Looks through the given list of media attachments for one with the given parameters
6661	* and returns it, or NULL if not found. The list is a parameter so that backup lists
6662	* can be searched as well if needed.
6663	*
6664	* @param list
6665	* @param aControllerName
6666	* @param aControllerPort
6667	* @param aDevice
6668	* @return
6669	*/
6670	MediumAttachment* Machine::findAttachment(const MediaData::AttachmentList &ll,
6671	Guid &id)
6672	{
6673	for (MediaData::AttachmentList::const_iterator it = ll.begin();
6674	it != ll.end();
6675	++it)
6676	{
6677	MediumAttachment pAttach = it;
6678	ComObjPtr<Medium> pMediumThis = pAttach->medium();
6679	if (pMediumThis->id() == id)
6680	return pAttach;
6681	}
6682
6683	return NULL;
6684	}
6685
6686	/**
6687	* Perform deferred hard disk detachments on success and deletion of implicitly
6688	* created diffs on failure.
6689	*
6690	* Does nothing if the hard disk attachment data (mHDData) is not changed (not
6691	* backed up).
6692	*
6693	* When the data is backed up, this method will commit mHDData if @a aCommit is
6694	* @c true and rollback it otherwise before returning.
6695	*
6696	* If @a aOnline is @c true then this method called with @a aCommit = @c true
6697	* will also unlock the old hard disks for which the new implicit diffs were
6698	* created and will lock these new diffs for writing. When @a aCommit is @c
6699	* false, this argument is ignored.
6700	*
6701	* @param aCommit @c true if called on success.
6702	* @param aOnline Whether the VM was online prior to this operation.
6703	*
6704	* @note Locks this object for writing!
6705	*/
6706	void Machine::fixupMedia(bool aCommit, bool aOnline /= false/)
6707	{
6708	AutoCaller autoCaller(this);
6709	AssertComRCReturnVoid (autoCaller.rc());
6710
6711	AutoWriteLock alock(this);
6712
6713	HRESULT rc = S_OK;
6714
6715	/* no attach/detach operations -- nothing to do */
6716	if (!mMediaData.isBackedUp())
6717	return;
6718
6719	if (aCommit)
6720	{
6721	MediaData::AttachmentList &oldAtts = mMediaData.backedUpData()->mAttachments;
6722
6723	/* enumerate new attachments */
6724	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
6725	it != mMediaData->mAttachments.end();
6726	++it)
6727	{
6728	MediumAttachment pAttach = it;
6729
6730	if (pAttach->type() == DeviceType_HardDisk)
6731	{
6732	pAttach->commit();
6733
6734	Medium* pMedium = pAttach->medium();
6735
6736	/** @todo convert all this Machine-based voodoo to MediumAttachment
6737	* based commit logic. */
6738	if (pAttach->isImplicit())
6739	{
6740	/* convert implicit attachment to normal */
6741	pAttach->setImplicit(false);
6742
6743	if (aOnline)
6744	{
6745	rc = pMedium->LockWrite(NULL);
6746	AssertComRC(rc);
6747
6748	mData->mSession.mLockedMedia.push_back(
6749	Data::Session::LockedMedia::value_type(
6750	ComPtr<IMedium>(pMedium), true));
6751
6752	/* also, relock the old hard disk which is a base for the
6753	* new diff for reading if the VM is online */
6754
6755	ComObjPtr<Medium> parent = pMedium->parent();
6756	/* make the relock atomic */
6757	AutoWriteLock parentLock (parent);
6758	rc = parent->UnlockWrite(NULL);
6759	AssertComRC(rc);
6760	rc = parent->LockRead(NULL);
6761	AssertComRC(rc);
6762
6763	/* XXX actually we should replace the old entry in that
6764	* vector (write lock => read lock) but this would take
6765	* some effort. So lets just ignore the error code in
6766	* SessionMachine::unlockMedia(). */
6767	mData->mSession.mLockedMedia.push_back(
6768	Data::Session::LockedMedia::value_type (
6769	ComPtr<IMedium>(parent), false));
6770	}
6771
6772	continue;
6773	}
6774
6775	if (pMedium)
6776	{
6777	/* was this hard disk attached before? */
6778	for (MediaData::AttachmentList::iterator oldIt = oldAtts.begin();
6779	oldIt != oldAtts.end();
6780	++oldIt)
6781	{
6782	MediumAttachment pOldAttach = it;
6783	if (pOldAttach->medium().equalsTo(pMedium))
6784	{
6785	/* yes: remove from old to avoid de-association */
6786	oldAtts.erase(oldIt);
6787	break;
6788	}
6789	}
6790	}
6791	}
6792	}
6793
6794	/* enumerate remaining old attachments and de-associate from the
6795	* current machine state */
6796	for (MediaData::AttachmentList::const_iterator it = oldAtts.begin();
6797	it != oldAtts.end();
6798	++it)
6799	{
6800	MediumAttachment pAttach = it;
6801
6802	if (pAttach->type() == DeviceType_HardDisk)
6803	{
6804	Medium* pMedium = pAttach->medium();
6805
6806	if (pMedium)
6807	{
6808	/* now de-associate from the current machine state */
6809	rc = pMedium->detachFrom(mData->mUuid);
6810	AssertComRC(rc);
6811
6812	if (aOnline)
6813	{
6814	/* unlock since not used anymore */
6815	MediumState_T state;
6816	rc = pMedium->UnlockWrite(&state);
6817	/* the disk may be alredy relocked for reading above */
6818	Assert (SUCCEEDED(rc) \|\| state == MediumState_LockedRead);
6819	}
6820	}
6821	}
6822	}
6823
6824	/* commit the hard disk changes */
6825	mMediaData.commit();
6826
6827	if (mType == IsSessionMachine)
6828	{
6829	/* attach new data to the primary machine and reshare it */
6830	mPeer->mMediaData.attach(mMediaData);
6831	}
6832	}
6833	else
6834	{
6835	/* enumerate new attachments */
6836	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
6837	it != mMediaData->mAttachments.end();
6838	++it)
6839	{
6840	(*it)->rollback();
6841	}
6842
6843	/** @todo convert all this Machine-based voodoo to MediumAttachment
6844	* based rollback logic. */
6845	// @todo r=dj the below totally fails if this gets called from Machine::rollback(),
6846	// which gets called if Machine::registeredInit() fails...
6847	deleteImplicitDiffs();
6848	}
6849
6850	return;
6851	}
6852
6853	/**
6854	* Returns true if the settings file is located in the directory named exactly
6855	* as the machine. This will be true if the machine settings structure was
6856	* created by default in #openConfigLoader().
6857	*
6858	* @param aSettingsDir if not NULL, the full machine settings file directory
6859	* name will be assigned there.
6860	*
6861	* @note Doesn't lock anything.
6862	* @note Not thread safe (must be called from this object's lock).
6863	*/
6864	bool Machine::isInOwnDir(Utf8Str aSettingsDir / = NULL */)
6865	{
6866	Utf8Str settingsDir = mData->m_strConfigFileFull;
6867	settingsDir.stripFilename();
6868	char *dirName = RTPathFilename(settingsDir.c_str());
6869
6870	AssertReturn(dirName, false);
6871
6872	/* if we don't rename anything on name change, return false shorlty */
6873	if (!mUserData->mNameSync)
6874	return false;
6875
6876	if (aSettingsDir)
6877	*aSettingsDir = settingsDir;
6878
6879	return Bstr (dirName) == mUserData->mName;
6880	}
6881
6882	/**
6883	* @note Locks objects for reading!
6884	*/
6885	bool Machine::isModified()
6886	{
6887	AutoCaller autoCaller(this);
6888	AssertComRCReturn (autoCaller.rc(), false);
6889
6890	AutoReadLock alock(this);
6891
6892	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
6893	if (mNetworkAdapters [slot] && mNetworkAdapters [slot]->isModified())
6894	return true;
6895
6896	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
6897	if (mSerialPorts [slot] && mSerialPorts [slot]->isModified())
6898	return true;
6899
6900	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
6901	if (mParallelPorts [slot] && mParallelPorts [slot]->isModified())
6902	return true;
6903
6904	if (!mStorageControllers.isNull())
6905	{
6906	for (StorageControllerList::const_iterator it =
6907	mStorageControllers->begin();
6908	it != mStorageControllers->end();
6909	++it)
6910	{
6911	if ((*it)->isModified())
6912	return true;
6913	}
6914	}
6915
6916	return
6917	mUserData.isBackedUp() \|\|
6918	mHWData.isBackedUp() \|\|
6919	mMediaData.isBackedUp() \|\|
6920	mStorageControllers.isBackedUp() \|\|
6921	#ifdef VBOX_WITH_VRDP
6922	(mVRDPServer && mVRDPServer->isModified()) \|\|
6923	#endif
6924	(mAudioAdapter && mAudioAdapter->isModified()) \|\|
6925	(mUSBController && mUSBController->isModified()) \|\|
6926	(mBIOSSettings && mBIOSSettings->isModified());
6927	}
6928
6929	/**
6930	* Returns the logical OR of data.hasActualChanges() of this and all child
6931	* objects.
6932	*
6933	* @param aIgnoreUserData @c true to ignore changes to mUserData
6934	*
6935	* @note Locks objects for reading!
6936	*/
6937	bool Machine::isReallyModified (bool aIgnoreUserData /* = false */)
6938	{
6939	AutoCaller autoCaller(this);
6940	AssertComRCReturn (autoCaller.rc(), false);
6941
6942	AutoReadLock alock(this);
6943
6944	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
6945	if (mNetworkAdapters [slot] && mNetworkAdapters [slot]->isReallyModified())
6946	return true;
6947
6948	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
6949	if (mSerialPorts [slot] && mSerialPorts [slot]->isReallyModified())
6950	return true;
6951
6952	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
6953	if (mParallelPorts [slot] && mParallelPorts [slot]->isReallyModified())
6954	return true;
6955
6956	if (!mStorageControllers.isBackedUp())
6957	{
6958	/* see whether any of the devices has changed its data */
6959	for (StorageControllerList::const_iterator
6960	it = mStorageControllers->begin();
6961	it != mStorageControllers->end();
6962	++it)
6963	{
6964	if ((*it)->isReallyModified())
6965	return true;
6966	}
6967	}
6968	else
6969	{
6970	if (mStorageControllers->size() != mStorageControllers.backedUpData()->size())
6971	return true;
6972	}
6973
6974	return
6975	(!aIgnoreUserData && mUserData.hasActualChanges()) \|\|
6976	mHWData.hasActualChanges() \|\|
6977	mMediaData.hasActualChanges() \|\|
6978	mStorageControllers.hasActualChanges() \|\|
6979	#ifdef VBOX_WITH_VRDP
6980	(mVRDPServer && mVRDPServer->isReallyModified()) \|\|
6981	#endif
6982	(mAudioAdapter && mAudioAdapter->isReallyModified()) \|\|
6983	(mUSBController && mUSBController->isReallyModified()) \|\|
6984	(mBIOSSettings && mBIOSSettings->isReallyModified());
6985	}
6986
6987	/**
6988	* Discards all changes to machine settings.
6989	*
6990	* @param aNotify Whether to notify the direct session about changes or not.
6991	*
6992	* @note Locks objects for writing!
6993	*/
6994	void Machine::rollback (bool aNotify)
6995	{
6996	AutoCaller autoCaller(this);
6997	AssertComRCReturn (autoCaller.rc(), (void) 0);
6998
6999	AutoWriteLock alock(this);
7000
7001	/* check for changes in own data */
7002
7003	bool sharedFoldersChanged = false, storageChanged = false;
7004
7005	if (aNotify && mHWData.isBackedUp())
7006	{
7007	if (mHWData->mSharedFolders.size() !=
7008	mHWData.backedUpData()->mSharedFolders.size())
7009	sharedFoldersChanged = true;
7010	else
7011	{
7012	for (HWData::SharedFolderList::iterator rit =
7013	mHWData->mSharedFolders.begin();
7014	rit != mHWData->mSharedFolders.end() && !sharedFoldersChanged;
7015	++rit)
7016	{
7017	for (HWData::SharedFolderList::iterator cit =
7018	mHWData.backedUpData()->mSharedFolders.begin();
7019	cit != mHWData.backedUpData()->mSharedFolders.end();
7020	++cit)
7021	{
7022	if ((cit)->name() != (rit)->name() \|\|
7023	(cit)->hostPath() != (rit)->hostPath())
7024	{
7025	sharedFoldersChanged = true;
7026	break;
7027	}
7028	}
7029	}
7030	}
7031	}
7032
7033	if (!mStorageControllers.isNull())
7034	{
7035	if (mStorageControllers.isBackedUp())
7036	{
7037	/* unitialize all new devices (absent in the backed up list). */
7038	StorageControllerList::const_iterator it = mStorageControllers->begin();
7039	StorageControllerList *backedList = mStorageControllers.backedUpData();
7040	while (it != mStorageControllers->end())
7041	{
7042	if (std::find (backedList->begin(), backedList->end(), *it ) ==
7043	backedList->end())
7044	{
7045	(*it)->uninit();
7046	}
7047	++it;
7048	}
7049
7050	/* restore the list */
7051	mStorageControllers.rollback();
7052	}
7053
7054	/* rollback any changes to devices after restoring the list */
7055	StorageControllerList::const_iterator it = mStorageControllers->begin();
7056	while (it != mStorageControllers->end())
7057	{
7058	if ((*it)->isModified())
7059	(*it)->rollback();
7060
7061	++it;
7062	}
7063	}
7064
7065	mUserData.rollback();
7066
7067	mHWData.rollback();
7068
7069	if (mMediaData.isBackedUp())
7070	fixupMedia(false /* aCommit */);
7071
7072	/* check for changes in child objects */
7073
7074	bool vrdpChanged = false, usbChanged = false;
7075
7076	ComPtr<INetworkAdapter> networkAdapters [RT_ELEMENTS (mNetworkAdapters)];
7077	ComPtr<ISerialPort> serialPorts [RT_ELEMENTS (mSerialPorts)];
7078	ComPtr<IParallelPort> parallelPorts [RT_ELEMENTS (mParallelPorts)];
7079
7080	if (mBIOSSettings)
7081	mBIOSSettings->rollback();
7082
7083	#ifdef VBOX_WITH_VRDP
7084	if (mVRDPServer)
7085	vrdpChanged = mVRDPServer->rollback();
7086	#endif
7087
7088	if (mAudioAdapter)
7089	mAudioAdapter->rollback();
7090
7091	if (mUSBController)
7092	usbChanged = mUSBController->rollback();
7093
7094	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
7095	if (mNetworkAdapters [slot])
7096	if (mNetworkAdapters [slot]->rollback())
7097	networkAdapters [slot] = mNetworkAdapters [slot];
7098
7099	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
7100	if (mSerialPorts [slot])
7101	if (mSerialPorts [slot]->rollback())
7102	serialPorts [slot] = mSerialPorts [slot];
7103
7104	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
7105	if (mParallelPorts [slot])
7106	if (mParallelPorts [slot]->rollback())
7107	parallelPorts [slot] = mParallelPorts [slot];
7108
7109	if (aNotify)
7110	{
7111	/* inform the direct session about changes */
7112
7113	ComObjPtr<Machine> that = this;
7114	alock.leave();
7115
7116	if (sharedFoldersChanged)
7117	that->onSharedFolderChange();
7118
7119	if (vrdpChanged)
7120	that->onVRDPServerChange();
7121	if (usbChanged)
7122	that->onUSBControllerChange();
7123
7124	for (ULONG slot = 0; slot < RT_ELEMENTS (networkAdapters); slot ++)
7125	if (networkAdapters [slot])
7126	that->onNetworkAdapterChange (networkAdapters [slot], FALSE);
7127	for (ULONG slot = 0; slot < RT_ELEMENTS (serialPorts); slot ++)
7128	if (serialPorts [slot])
7129	that->onSerialPortChange (serialPorts [slot]);
7130	for (ULONG slot = 0; slot < RT_ELEMENTS (parallelPorts); slot ++)
7131	if (parallelPorts [slot])
7132	that->onParallelPortChange (parallelPorts [slot]);
7133
7134	if (storageChanged)
7135	that->onStorageControllerChange();
7136	}
7137	}
7138
7139	/**
7140	* Commits all the changes to machine settings.
7141	*
7142	* Note that this operation is supposed to never fail.
7143	*
7144	* @note Locks this object and children for writing.
7145	*/
7146	void Machine::commit()
7147	{
7148	AutoCaller autoCaller(this);
7149	AssertComRCReturnVoid (autoCaller.rc());
7150
7151	AutoCaller peerCaller (mPeer);
7152	AssertComRCReturnVoid (peerCaller.rc());
7153
7154	AutoMultiWriteLock2 alock (mPeer, this);
7155
7156	/*
7157	* use safe commit to ensure Snapshot machines (that share mUserData)
7158	* will still refer to a valid memory location
7159	*/
7160	mUserData.commitCopy();
7161
7162	mHWData.commit();
7163
7164	if (mMediaData.isBackedUp())
7165	fixupMedia(true /* aCommit */);
7166
7167	mBIOSSettings->commit();
7168	#ifdef VBOX_WITH_VRDP
7169	mVRDPServer->commit();
7170	#endif
7171	mAudioAdapter->commit();
7172	mUSBController->commit();
7173
7174	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
7175	mNetworkAdapters [slot]->commit();
7176	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
7177	mSerialPorts [slot]->commit();
7178	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
7179	mParallelPorts [slot]->commit();
7180
7181	bool commitStorageControllers = false;
7182
7183	if (mStorageControllers.isBackedUp())
7184	{
7185	mStorageControllers.commit();
7186
7187	if (mPeer)
7188	{
7189	AutoWriteLock peerlock (mPeer);
7190
7191	/* Commit all changes to new controllers (this will reshare data with
7192	* peers for thos who have peers) */
7193	StorageControllerList *newList = new StorageControllerList();
7194	StorageControllerList::const_iterator it = mStorageControllers->begin();
7195	while (it != mStorageControllers->end())
7196	{
7197	(*it)->commit();
7198
7199	/* look if this controller has a peer device */
7200	ComObjPtr<StorageController> peer = (*it)->peer();
7201	if (!peer)
7202	{
7203	/* no peer means the device is a newly created one;
7204	* create a peer owning data this device share it with */
7205	peer.createObject();
7206	peer->init (mPeer, it, true / aReshare */);
7207	}
7208	else
7209	{
7210	/* remove peer from the old list */
7211	mPeer->mStorageControllers->remove (peer);
7212	}
7213	/* and add it to the new list */
7214	newList->push_back(peer);
7215
7216	++it;
7217	}
7218
7219	/* uninit old peer's controllers that are left */
7220	it = mPeer->mStorageControllers->begin();
7221	while (it != mPeer->mStorageControllers->end())
7222	{
7223	(*it)->uninit();
7224	++it;
7225	}
7226
7227	/* attach new list of controllers to our peer */
7228	mPeer->mStorageControllers.attach (newList);
7229	}
7230	else
7231	{
7232	/* we have no peer (our parent is the newly created machine);
7233	* just commit changes to devices */
7234	commitStorageControllers = true;
7235	}
7236	}
7237	else
7238	{
7239	/* the list of controllers itself is not changed,
7240	* just commit changes to controllers themselves */
7241	commitStorageControllers = true;
7242	}
7243
7244	if (commitStorageControllers)
7245	{
7246	StorageControllerList::const_iterator it = mStorageControllers->begin();
7247	while (it != mStorageControllers->end())
7248	{
7249	(*it)->commit();
7250	++it;
7251	}
7252	}
7253
7254	if (mType == IsSessionMachine)
7255	{
7256	/* attach new data to the primary machine and reshare it */
7257	mPeer->mUserData.attach (mUserData);
7258	mPeer->mHWData.attach (mHWData);
7259	/* mHDData is reshared by fixupMedia */
7260	// mPeer->mHDData.attach (mHDData);
7261	Assert(mPeer->mMediaData.data() == mMediaData.data());
7262	}
7263	}
7264
7265	/**
7266	* Copies all the hardware data from the given machine.
7267	*
7268	* Currently, only called when the VM is being restored from a snapshot. In
7269	* particular, this implies that the VM is not running during this method's
7270	* call.
7271	*
7272	* @note This method must be called from under this object's lock.
7273	*
7274	* @note This method doesn't call #commit(), so all data remains backed up and
7275	* unsaved.
7276	*/
7277	void Machine::copyFrom (Machine *aThat)
7278	{
7279	AssertReturnVoid (mType == IsMachine \|\| mType == IsSessionMachine);
7280	AssertReturnVoid (aThat->mType == IsSnapshotMachine);
7281
7282	AssertReturnVoid (!Global::IsOnline (mData->mMachineState));
7283
7284	mHWData.assignCopy (aThat->mHWData);
7285
7286	// create copies of all shared folders (mHWData after attiching a copy
7287	// contains just references to original objects)
7288	for (HWData::SharedFolderList::iterator it = mHWData->mSharedFolders.begin();
7289	it != mHWData->mSharedFolders.end();
7290	++it)
7291	{
7292	ComObjPtr<SharedFolder> folder;
7293	folder.createObject();
7294	HRESULT rc = folder->initCopy (machine(), *it);
7295	AssertComRC (rc);
7296	*it = folder;
7297	}
7298
7299	mBIOSSettings->copyFrom (aThat->mBIOSSettings);
7300	#ifdef VBOX_WITH_VRDP
7301	mVRDPServer->copyFrom (aThat->mVRDPServer);
7302	#endif
7303	mAudioAdapter->copyFrom (aThat->mAudioAdapter);
7304	mUSBController->copyFrom (aThat->mUSBController);
7305
7306	/* create private copies of all controllers */
7307	mStorageControllers.backup();
7308	mStorageControllers->clear();
7309	for (StorageControllerList::iterator it = aThat->mStorageControllers->begin();
7310	it != aThat->mStorageControllers->end();
7311	++it)
7312	{
7313	ComObjPtr<StorageController> ctrl;
7314	ctrl.createObject();
7315	ctrl->initCopy (this, *it);
7316	mStorageControllers->push_back(ctrl);
7317	}
7318
7319	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
7320	mNetworkAdapters [slot]->copyFrom (aThat->mNetworkAdapters [slot]);
7321	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
7322	mSerialPorts [slot]->copyFrom (aThat->mSerialPorts [slot]);
7323	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
7324	mParallelPorts [slot]->copyFrom (aThat->mParallelPorts [slot]);
7325	}
7326
7327	#ifdef VBOX_WITH_RESOURCE_USAGE_API
7328	void Machine::registerMetrics (PerformanceCollector aCollector, Machine aMachine, RTPROCESS pid)
7329	{
7330	pm::CollectorHAL *hal = aCollector->getHAL();
7331	/* Create sub metrics */
7332	pm::SubMetric *cpuLoadUser = new pm::SubMetric ("CPU/Load/User",
7333	"Percentage of processor time spent in user mode by VM process.");
7334	pm::SubMetric *cpuLoadKernel = new pm::SubMetric ("CPU/Load/Kernel",
7335	"Percentage of processor time spent in kernel mode by VM process.");
7336	pm::SubMetric *ramUsageUsed = new pm::SubMetric ("RAM/Usage/Used",
7337	"Size of resident portion of VM process in memory.");
7338	/* Create and register base metrics */
7339	pm::BaseMetric *cpuLoad = new pm::MachineCpuLoadRaw (hal, aMachine, pid,
7340	cpuLoadUser, cpuLoadKernel);
7341	aCollector->registerBaseMetric (cpuLoad);
7342	pm::BaseMetric *ramUsage = new pm::MachineRamUsage (hal, aMachine, pid,
7343	ramUsageUsed);
7344	aCollector->registerBaseMetric (ramUsage);
7345
7346	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadUser, 0));
7347	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadUser,
7348	new pm::AggregateAvg()));
7349	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadUser,
7350	new pm::AggregateMin()));
7351	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadUser,
7352	new pm::AggregateMax()));
7353	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadKernel, 0));
7354	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadKernel,
7355	new pm::AggregateAvg()));
7356	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadKernel,
7357	new pm::AggregateMin()));
7358	aCollector->registerMetric (new pm::Metric (cpuLoad, cpuLoadKernel,
7359	new pm::AggregateMax()));
7360
7361	aCollector->registerMetric (new pm::Metric (ramUsage, ramUsageUsed, 0));
7362	aCollector->registerMetric (new pm::Metric (ramUsage, ramUsageUsed,
7363	new pm::AggregateAvg()));
7364	aCollector->registerMetric (new pm::Metric (ramUsage, ramUsageUsed,
7365	new pm::AggregateMin()));
7366	aCollector->registerMetric (new pm::Metric (ramUsage, ramUsageUsed,
7367	new pm::AggregateMax()));
7368	};
7369
7370	void Machine::unregisterMetrics (PerformanceCollector aCollector, Machine aMachine)
7371	{
7372	aCollector->unregisterMetricsFor (aMachine);
7373	aCollector->unregisterBaseMetricsFor (aMachine);
7374	};
7375	#endif /* VBOX_WITH_RESOURCE_USAGE_API */
7376
7377
7378	/////////////////////////////////////////////////////////////////////////////
7379	// SessionMachine class
7380	/////////////////////////////////////////////////////////////////////////////
7381
7382	/** Task structure for asynchronous VM operations */
7383	struct SessionMachine::Task
7384	{
7385	Task (SessionMachine m, Progress p)
7386	: machine (m), progress (p)
7387	, state (m->mData->mMachineState) // save the current machine state
7388	, subTask (false)
7389	{}
7390
7391	void modifyLastState (MachineState_T s)
7392	{
7393	const_cast <MachineState_T > (&state) = s;
7394	}
7395
7396	virtual void handler() = 0;
7397
7398	ComObjPtr<SessionMachine> machine;
7399	ComObjPtr<Progress> progress;
7400	const MachineState_T state;
7401
7402	bool subTask : 1;
7403	};
7404
7405	/** Discard snapshot task */
7406	struct SessionMachine::DiscardSnapshotTask
7407	: public SessionMachine::Task
7408	{
7409	DiscardSnapshotTask(SessionMachine m, Progress p, Snapshot *s)
7410	: Task (m, p),
7411	snapshot (s)
7412	{}
7413
7414	DiscardSnapshotTask (const Task &task, Snapshot *s)
7415	: Task (task)
7416	, snapshot (s)
7417	{}
7418
7419	void handler()
7420	{
7421	machine->discardSnapshotHandler(*this);
7422	}
7423
7424	ComObjPtr<Snapshot> snapshot;
7425	};
7426
7427	/** Discard current state task */
7428	struct SessionMachine::DiscardCurrentStateTask
7429	: public SessionMachine::Task
7430	{
7431	DiscardCurrentStateTask(SessionMachine m, Progress p, bool discardCurSnapshot)
7432	: Task(m, p),
7433	discardCurrentSnapshot(discardCurSnapshot)
7434	{}
7435
7436	void handler()
7437	{
7438	machine->discardCurrentStateHandler(*this);
7439	}
7440
7441	const bool discardCurrentSnapshot;
7442	};
7443
7444	////////////////////////////////////////////////////////////////////////////////
7445
7446	DEFINE_EMPTY_CTOR_DTOR(SessionMachine)
7447
7448	HRESULT SessionMachine::FinalConstruct()
7449	{
7450	LogFlowThisFunc(("\n"));
7451
7452	/* set the proper type to indicate we're the SessionMachine instance */
7453	unconst(mType) = IsSessionMachine;
7454
7455	#if defined(RT_OS_WINDOWS)
7456	mIPCSem = NULL;
7457	#elif defined(RT_OS_OS2)
7458	mIPCSem = NULLHANDLE;
7459	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7460	mIPCSem = -1;
7461	#else
7462	# error "Port me!"
7463	#endif
7464
7465	return S_OK;
7466	}
7467
7468	void SessionMachine::FinalRelease()
7469	{
7470	LogFlowThisFunc(("\n"));
7471
7472	uninit (Uninit::Unexpected);
7473	}
7474
7475	/**
7476	* @note Must be called only by Machine::openSession() from its own write lock.
7477	*/
7478	HRESULT SessionMachine::init (Machine *aMachine)
7479	{
7480	LogFlowThisFuncEnter();
7481	LogFlowThisFunc(("mName={%ls}\n", aMachine->mUserData->mName.raw()));
7482
7483	AssertReturn(aMachine, E_INVALIDARG);
7484
7485	AssertReturn(aMachine->lockHandle()->isWriteLockOnCurrentThread(), E_FAIL);
7486
7487	/* Enclose the state transition NotReady->InInit->Ready */
7488	AutoInitSpan autoInitSpan(this);
7489	AssertReturn(autoInitSpan.isOk(), E_FAIL);
7490
7491	/* create the interprocess semaphore */
7492	#if defined(RT_OS_WINDOWS)
7493	mIPCSemName = aMachine->mData->m_strConfigFileFull;
7494	for (size_t i = 0; i < mIPCSemName.length(); i++)
7495	if (mIPCSemName[i] == '\\')
7496	mIPCSemName[i] = '/';
7497	mIPCSem = ::CreateMutex (NULL, FALSE, mIPCSemName);
7498	ComAssertMsgRet (mIPCSem,
7499	("Cannot create IPC mutex '%ls', err=%d",
7500	mIPCSemName.raw(), ::GetLastError()),
7501	E_FAIL);
7502	#elif defined(RT_OS_OS2)
7503	Utf8Str ipcSem = Utf8StrFmt ("\\SEM32\\VBOX\\VM\\{%RTuuid}",
7504	aMachine->mData->mUuid.raw());
7505	mIPCSemName = ipcSem;
7506	APIRET arc = ::DosCreateMutexSem ((PSZ) ipcSem.raw(), &mIPCSem, 0, FALSE);
7507	ComAssertMsgRet (arc == NO_ERROR,
7508	("Cannot create IPC mutex '%s', arc=%ld",
7509	ipcSem.raw(), arc),
7510	E_FAIL);
7511	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7512	# ifdef VBOX_WITH_NEW_SYS_V_KEYGEN
7513	# if defined(RT_OS_FREEBSD) && (HC_ARCH_BITS == 64)
7514	/** @todo Check that this still works correctly. */
7515	AssertCompileSize(key_t, 8);
7516	# else
7517	AssertCompileSize(key_t, 4);
7518	# endif
7519	key_t key;
7520	mIPCSem = -1;
7521	mIPCKey = "0";
7522	for (uint32_t i = 0; i < 1 << 24; i++)
7523	{
7524	key = ((uint32_t)'V' << 24) \| i;
7525	int sem = ::semget (key, 1, S_IRUSR \| S_IWUSR \| IPC_CREAT \| IPC_EXCL);
7526	if (sem >= 0 \|\| (errno != EEXIST && errno != EACCES))
7527	{
7528	mIPCSem = sem;
7529	if (sem >= 0)
7530	mIPCKey = BstrFmt ("%u", key);
7531	break;
7532	}
7533	}
7534	# else /* !VBOX_WITH_NEW_SYS_V_KEYGEN */
7535	Utf8Str semName = aMachine->mData->m_strConfigFileFull;
7536	char *pszSemName = NULL;
7537	RTStrUtf8ToCurrentCP (&pszSemName, semName);
7538	key_t key = ::ftok (pszSemName, 'V');
7539	RTStrFree (pszSemName);
7540
7541	mIPCSem = ::semget (key, 1, S_IRWXU \| S_IRWXG \| S_IRWXO \| IPC_CREAT);
7542	# endif /* !VBOX_WITH_NEW_SYS_V_KEYGEN */
7543
7544	int errnoSave = errno;
7545	if (mIPCSem < 0 && errnoSave == ENOSYS)
7546	{
7547	setError(E_FAIL,
7548	tr("Cannot create IPC semaphore. Most likely your host kernel lacks "
7549	"support for SysV IPC. Check the host kernel configuration for "
7550	"CONFIG_SYSVIPC=y"));
7551	return E_FAIL;
7552	}
7553	ComAssertMsgRet (mIPCSem >= 0, ("Cannot create IPC semaphore, errno=%d", errnoSave),
7554	E_FAIL);
7555	/* set the initial value to 1 */
7556	int rv = ::semctl (mIPCSem, 0, SETVAL, 1);
7557	ComAssertMsgRet (rv == 0, ("Cannot init IPC semaphore, errno=%d", errno),
7558	E_FAIL);
7559	#else
7560	# error "Port me!"
7561	#endif
7562
7563	/* memorize the peer Machine */
7564	unconst(mPeer) = aMachine;
7565	/* share the parent pointer */
7566	unconst(mParent) = aMachine->mParent;
7567
7568	/* take the pointers to data to share */
7569	mData.share (aMachine->mData);
7570	mSSData.share (aMachine->mSSData);
7571
7572	mUserData.share (aMachine->mUserData);
7573	mHWData.share (aMachine->mHWData);
7574	mMediaData.share(aMachine->mMediaData);
7575
7576	mStorageControllers.allocate();
7577	for (StorageControllerList::const_iterator it = aMachine->mStorageControllers->begin();
7578	it != aMachine->mStorageControllers->end();
7579	++it)
7580	{
7581	ComObjPtr<StorageController> ctl;
7582	ctl.createObject();
7583	ctl->init(this, *it);
7584	mStorageControllers->push_back (ctl);
7585	}
7586
7587	unconst(mBIOSSettings).createObject();
7588	mBIOSSettings->init (this, aMachine->mBIOSSettings);
7589	#ifdef VBOX_WITH_VRDP
7590	/* create another VRDPServer object that will be mutable */
7591	unconst(mVRDPServer).createObject();
7592	mVRDPServer->init (this, aMachine->mVRDPServer);
7593	#endif
7594	/* create another audio adapter object that will be mutable */
7595	unconst(mAudioAdapter).createObject();
7596	mAudioAdapter->init (this, aMachine->mAudioAdapter);
7597	/* create a list of serial ports that will be mutable */
7598	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
7599	{
7600	unconst(mSerialPorts [slot]).createObject();
7601	mSerialPorts [slot]->init (this, aMachine->mSerialPorts [slot]);
7602	}
7603	/* create a list of parallel ports that will be mutable */
7604	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
7605	{
7606	unconst(mParallelPorts [slot]).createObject();
7607	mParallelPorts [slot]->init (this, aMachine->mParallelPorts [slot]);
7608	}
7609	/* create another USB controller object that will be mutable */
7610	unconst(mUSBController).createObject();
7611	mUSBController->init (this, aMachine->mUSBController);
7612
7613	/* create a list of network adapters that will be mutable */
7614	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
7615	{
7616	unconst(mNetworkAdapters [slot]).createObject();
7617	mNetworkAdapters [slot]->init (this, aMachine->mNetworkAdapters [slot]);
7618	}
7619
7620	/* default is to delete saved state on Saved -> PoweredOff transition */
7621	mRemoveSavedState = true;
7622
7623	/* Confirm a successful initialization when it's the case */
7624	autoInitSpan.setSucceeded();
7625
7626	LogFlowThisFuncLeave();
7627	return S_OK;
7628	}
7629
7630	/**
7631	* Uninitializes this session object. If the reason is other than
7632	* Uninit::Unexpected, then this method MUST be called from #checkForDeath().
7633	*
7634	* @param aReason uninitialization reason
7635	*
7636	* @note Locks mParent + this object for writing.
7637	*/
7638	void SessionMachine::uninit (Uninit::Reason aReason)
7639	{
7640	LogFlowThisFuncEnter();
7641	LogFlowThisFunc(("reason=%d\n", aReason));
7642
7643	/*
7644	* Strongly reference ourselves to prevent this object deletion after
7645	* mData->mSession.mMachine.setNull() below (which can release the last
7646	* reference and call the destructor). Important: this must be done before
7647	* accessing any members (and before AutoUninitSpan that does it as well).
7648	* This self reference will be released as the very last step on return.
7649	*/
7650	ComObjPtr<SessionMachine> selfRef = this;
7651
7652	/* Enclose the state transition Ready->InUninit->NotReady */
7653	AutoUninitSpan autoUninitSpan(this);
7654	if (autoUninitSpan.uninitDone())
7655	{
7656	LogFlowThisFunc(("Already uninitialized\n"));
7657	LogFlowThisFuncLeave();
7658	return;
7659	}
7660
7661	if (autoUninitSpan.initFailed())
7662	{
7663	/* We've been called by init() because it's failed. It's not really
7664	* necessary (nor it's safe) to perform the regular uninit sequense
7665	* below, the following is enough.
7666	*/
7667	LogFlowThisFunc(("Initialization failed.\n"));
7668	#if defined(RT_OS_WINDOWS)
7669	if (mIPCSem)
7670	::CloseHandle (mIPCSem);
7671	mIPCSem = NULL;
7672	#elif defined(RT_OS_OS2)
7673	if (mIPCSem != NULLHANDLE)
7674	::DosCloseMutexSem (mIPCSem);
7675	mIPCSem = NULLHANDLE;
7676	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7677	if (mIPCSem >= 0)
7678	::semctl (mIPCSem, 0, IPC_RMID);
7679	mIPCSem = -1;
7680	# ifdef VBOX_WITH_NEW_SYS_V_KEYGEN
7681	mIPCKey = "0";
7682	# endif /* VBOX_WITH_NEW_SYS_V_KEYGEN */
7683	#else
7684	# error "Port me!"
7685	#endif
7686	uninitDataAndChildObjects();
7687	mData.free();
7688	unconst(mParent).setNull();
7689	unconst(mPeer).setNull();
7690	LogFlowThisFuncLeave();
7691	return;
7692	}
7693
7694	/* We need to lock this object in uninit() because the lock is shared
7695	* with mPeer (as well as data we modify below). mParent->addProcessToReap()
7696	* and others need mParent lock. */
7697	AutoMultiWriteLock2 alock (mParent, this);
7698
7699	#ifdef VBOX_WITH_RESOURCE_USAGE_API
7700	unregisterMetrics (mParent->performanceCollector(), mPeer);
7701	#endif /* VBOX_WITH_RESOURCE_USAGE_API */
7702
7703	MachineState_T lastState = mData->mMachineState;
7704	NOREF(lastState);
7705
7706	if (aReason == Uninit::Abnormal)
7707	{
7708	LogWarningThisFunc(("ABNORMAL client termination! (wasBusy=%d)\n",
7709	Global::IsOnlineOrTransient (lastState)));
7710
7711	/* reset the state to Aborted */
7712	if (mData->mMachineState != MachineState_Aborted)
7713	setMachineState (MachineState_Aborted);
7714	}
7715
7716	if (isModified())
7717	{
7718	LogWarningThisFunc(("Discarding unsaved settings changes!\n"));
7719	rollback (false /* aNotify */);
7720	}
7721
7722	Assert (!mSnapshotData.mStateFilePath \|\| !mSnapshotData.mSnapshot);
7723	if (mSnapshotData.mStateFilePath)
7724	{
7725	LogWarningThisFunc(("canceling failed save state request!\n"));
7726	endSavingState (FALSE /* aSuccess */);
7727	}
7728	else if (!mSnapshotData.mSnapshot.isNull())
7729	{
7730	LogWarningThisFunc(("canceling untaken snapshot!\n"));
7731	endTakingSnapshot (FALSE /* aSuccess */);
7732	}
7733
7734	#ifdef VBOX_WITH_USB
7735	/* release all captured USB devices */
7736	if (aReason == Uninit::Abnormal && Global::IsOnline (lastState))
7737	{
7738	/* Console::captureUSBDevices() is called in the VM process only after
7739	* setting the machine state to Starting or Restoring.
7740	* Console::detachAllUSBDevices() will be called upon successful
7741	* termination. So, we need to release USB devices only if there was
7742	* an abnormal termination of a running VM.
7743	*
7744	* This is identical to SessionMachine::DetachAllUSBDevices except
7745	* for the aAbnormal argument. */
7746	HRESULT rc = mUSBController->notifyProxy (false /* aInsertFilters */);
7747	AssertComRC(rc);
7748	NOREF (rc);
7749
7750	USBProxyService *service = mParent->host()->usbProxyService();
7751	if (service)
7752	service->detachAllDevicesFromVM (this, true /* aDone /, true / aAbnormal */);
7753	}
7754	#endif /* VBOX_WITH_USB */
7755
7756	if (!mData->mSession.mType.isNull())
7757	{
7758	/* mType is not null when this machine's process has been started by
7759	* VirtualBox::OpenRemoteSession(), therefore it is our child. We
7760	* need to queue the PID to reap the process (and avoid zombies on
7761	* Linux). */
7762	Assert (mData->mSession.mPid != NIL_RTPROCESS);
7763	mParent->addProcessToReap (mData->mSession.mPid);
7764	}
7765
7766	mData->mSession.mPid = NIL_RTPROCESS;
7767
7768	if (aReason == Uninit::Unexpected)
7769	{
7770	/* Uninitialization didn't come from #checkForDeath(), so tell the
7771	* client watcher thread to update the set of machines that have open
7772	* sessions. */
7773	mParent->updateClientWatcher();
7774	}
7775
7776	/* uninitialize all remote controls */
7777	if (mData->mSession.mRemoteControls.size())
7778	{
7779	LogFlowThisFunc(("Closing remote sessions (%d):\n",
7780	mData->mSession.mRemoteControls.size()));
7781
7782	Data::Session::RemoteControlList::iterator it =
7783	mData->mSession.mRemoteControls.begin();
7784	while (it != mData->mSession.mRemoteControls.end())
7785	{
7786	LogFlowThisFunc((" Calling remoteControl->Uninitialize()...\n"));
7787	HRESULT rc = (*it)->Uninitialize();
7788	LogFlowThisFunc((" remoteControl->Uninitialize() returned %08X\n", rc));
7789	if (FAILED (rc))
7790	LogWarningThisFunc(("Forgot to close the remote session?\n"));
7791	++it;
7792	}
7793	mData->mSession.mRemoteControls.clear();
7794	}
7795
7796	/*
7797	* An expected uninitialization can come only from #checkForDeath().
7798	* Otherwise it means that something's got really wrong (for examlple,
7799	* the Session implementation has released the VirtualBox reference
7800	* before it triggered #OnSessionEnd(), or before releasing IPC semaphore,
7801	* etc). However, it's also possible, that the client releases the IPC
7802	* semaphore correctly (i.e. before it releases the VirtualBox reference),
7803	* but the VirtualBox release event comes first to the server process.
7804	* This case is practically possible, so we should not assert on an
7805	* unexpected uninit, just log a warning.
7806	*/
7807
7808	if ((aReason == Uninit::Unexpected))
7809	LogWarningThisFunc(("Unexpected SessionMachine uninitialization!\n"));
7810
7811	if (aReason != Uninit::Normal)
7812	{
7813	mData->mSession.mDirectControl.setNull();
7814	}
7815	else
7816	{
7817	/* this must be null here (see #OnSessionEnd()) */
7818	Assert (mData->mSession.mDirectControl.isNull());
7819	Assert (mData->mSession.mState == SessionState_Closing);
7820	Assert (!mData->mSession.mProgress.isNull());
7821
7822	mData->mSession.mProgress->notifyComplete (S_OK);
7823	mData->mSession.mProgress.setNull();
7824	}
7825
7826	/* remove the association between the peer machine and this session machine */
7827	Assert (mData->mSession.mMachine == this \|\|
7828	aReason == Uninit::Unexpected);
7829
7830	/* reset the rest of session data */
7831	mData->mSession.mMachine.setNull();
7832	mData->mSession.mState = SessionState_Closed;
7833	mData->mSession.mType.setNull();
7834
7835	/* close the interprocess semaphore before leaving the shared lock */
7836	#if defined(RT_OS_WINDOWS)
7837	if (mIPCSem)
7838	::CloseHandle (mIPCSem);
7839	mIPCSem = NULL;
7840	#elif defined(RT_OS_OS2)
7841	if (mIPCSem != NULLHANDLE)
7842	::DosCloseMutexSem (mIPCSem);
7843	mIPCSem = NULLHANDLE;
7844	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7845	if (mIPCSem >= 0)
7846	::semctl (mIPCSem, 0, IPC_RMID);
7847	mIPCSem = -1;
7848	# ifdef VBOX_WITH_NEW_SYS_V_KEYGEN
7849	mIPCKey = "0";
7850	# endif /* VBOX_WITH_NEW_SYS_V_KEYGEN */
7851	#else
7852	# error "Port me!"
7853	#endif
7854
7855	/* fire an event */
7856	mParent->onSessionStateChange (mData->mUuid, SessionState_Closed);
7857
7858	uninitDataAndChildObjects();
7859
7860	/* free the essential data structure last */
7861	mData.free();
7862
7863	/* leave the shared lock before setting the below two to NULL */
7864	alock.leave();
7865
7866	unconst(mParent).setNull();
7867	unconst(mPeer).setNull();
7868
7869	LogFlowThisFuncLeave();
7870	}
7871
7872	// util::Lockable interface
7873	////////////////////////////////////////////////////////////////////////////////
7874
7875	/**
7876	* Overrides VirtualBoxBase::lockHandle() in order to share the lock handle
7877	* with the primary Machine instance (mPeer).
7878	*/
7879	RWLockHandle *SessionMachine::lockHandle() const
7880	{
7881	AssertReturn(!mPeer.isNull(), NULL);
7882	return mPeer->lockHandle();
7883	}
7884
7885	// IInternalMachineControl methods
7886	////////////////////////////////////////////////////////////////////////////////
7887
7888	/**
7889	* @note Locks this object for writing.
7890	*/
7891	STDMETHODIMP SessionMachine::SetRemoveSavedState(BOOL aRemove)
7892	{
7893	AutoCaller autoCaller(this);
7894	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7895
7896	AutoWriteLock alock(this);
7897
7898	mRemoveSavedState = aRemove;
7899
7900	return S_OK;
7901	}
7902
7903	/**
7904	* @note Locks the same as #setMachineState() does.
7905	*/
7906	STDMETHODIMP SessionMachine::UpdateState (MachineState_T aMachineState)
7907	{
7908	return setMachineState (aMachineState);
7909	}
7910
7911	/**
7912	* @note Locks this object for reading.
7913	*/
7914	STDMETHODIMP SessionMachine::GetIPCId (BSTR *aId)
7915	{
7916	AutoCaller autoCaller(this);
7917	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7918
7919	AutoReadLock alock(this);
7920
7921	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
7922	mIPCSemName.cloneTo(aId);
7923	return S_OK;
7924	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7925	# ifdef VBOX_WITH_NEW_SYS_V_KEYGEN
7926	mIPCKey.cloneTo(aId);
7927	# else /* !VBOX_WITH_NEW_SYS_V_KEYGEN */
7928	mData->m_strConfigFileFull.cloneTo(aId);
7929	# endif /* !VBOX_WITH_NEW_SYS_V_KEYGEN */
7930	return S_OK;
7931	#else
7932	# error "Port me!"
7933	#endif
7934	}
7935
7936	/**
7937	* Goes through the USB filters of the given machine to see if the given
7938	* device matches any filter or not.
7939	*
7940	* @note Locks the same as USBController::hasMatchingFilter() does.
7941	*/
7942	STDMETHODIMP SessionMachine::RunUSBDeviceFilters (IUSBDevice *aUSBDevice,
7943	BOOL *aMatched,
7944	ULONG *aMaskedIfs)
7945	{
7946	LogFlowThisFunc(("\n"));
7947
7948	CheckComArgNotNull (aUSBDevice);
7949	CheckComArgOutPointerValid(aMatched);
7950
7951	AutoCaller autoCaller(this);
7952	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7953
7954	#ifdef VBOX_WITH_USB
7955	*aMatched = mUSBController->hasMatchingFilter (aUSBDevice, aMaskedIfs);
7956	#else
7957	NOREF(aUSBDevice);
7958	NOREF(aMaskedIfs);
7959	*aMatched = FALSE;
7960	#endif
7961
7962	return S_OK;
7963	}
7964
7965	/**
7966	* @note Locks the same as Host::captureUSBDevice() does.
7967	*/
7968	STDMETHODIMP SessionMachine::CaptureUSBDevice (IN_BSTR aId)
7969	{
7970	LogFlowThisFunc(("\n"));
7971
7972	AutoCaller autoCaller(this);
7973	AssertComRCReturnRC(autoCaller.rc());
7974
7975	#ifdef VBOX_WITH_USB
7976	/* if captureDeviceForVM() fails, it must have set extended error info */
7977	MultiResult rc = mParent->host()->checkUSBProxyService();
7978	CheckComRCReturnRC(rc);
7979
7980	USBProxyService *service = mParent->host()->usbProxyService();
7981	AssertReturn(service, E_FAIL);
7982	return service->captureDeviceForVM (this, Guid(aId));
7983	#else
7984	NOREF(aId);
7985	return E_NOTIMPL;
7986	#endif
7987	}
7988
7989	/**
7990	* @note Locks the same as Host::detachUSBDevice() does.
7991	*/
7992	STDMETHODIMP SessionMachine::DetachUSBDevice (IN_BSTR aId, BOOL aDone)
7993	{
7994	LogFlowThisFunc(("\n"));
7995
7996	AutoCaller autoCaller(this);
7997	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7998
7999	#ifdef VBOX_WITH_USB
8000	USBProxyService *service = mParent->host()->usbProxyService();
8001	AssertReturn(service, E_FAIL);
8002	return service->detachDeviceFromVM (this, Guid(aId), !!aDone);
8003	#else
8004	NOREF(aId);
8005	NOREF(aDone);
8006	return E_NOTIMPL;
8007	#endif
8008	}
8009
8010	/**
8011	* Inserts all machine filters to the USB proxy service and then calls
8012	* Host::autoCaptureUSBDevices().
8013	*
8014	* Called by Console from the VM process upon VM startup.
8015	*
8016	* @note Locks what called methods lock.
8017	*/
8018	STDMETHODIMP SessionMachine::AutoCaptureUSBDevices()
8019	{
8020	LogFlowThisFunc(("\n"));
8021
8022	AutoCaller autoCaller(this);
8023	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8024
8025	#ifdef VBOX_WITH_USB
8026	HRESULT rc = mUSBController->notifyProxy (true /* aInsertFilters */);
8027	AssertComRC(rc);
8028	NOREF (rc);
8029
8030	USBProxyService *service = mParent->host()->usbProxyService();
8031	AssertReturn(service, E_FAIL);
8032	return service->autoCaptureDevicesForVM (this);
8033	#else
8034	return S_OK;
8035	#endif
8036	}
8037
8038	/**
8039	* Removes all machine filters from the USB proxy service and then calls
8040	* Host::detachAllUSBDevices().
8041	*
8042	* Called by Console from the VM process upon normal VM termination or by
8043	* SessionMachine::uninit() upon abnormal VM termination (from under the
8044	* Machine/SessionMachine lock).
8045	*
8046	* @note Locks what called methods lock.
8047	*/
8048	STDMETHODIMP SessionMachine::DetachAllUSBDevices (BOOL aDone)
8049	{
8050	LogFlowThisFunc(("\n"));
8051
8052	AutoCaller autoCaller(this);
8053	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8054
8055	#ifdef VBOX_WITH_USB
8056	HRESULT rc = mUSBController->notifyProxy (false /* aInsertFilters */);
8057	AssertComRC(rc);
8058	NOREF (rc);
8059
8060	USBProxyService *service = mParent->host()->usbProxyService();
8061	AssertReturn(service, E_FAIL);
8062	return service->detachAllDevicesFromVM (this, !!aDone, false /* aAbnormal */);
8063	#else
8064	NOREF(aDone);
8065	return S_OK;
8066	#endif
8067	}
8068
8069	/**
8070	* @note Locks this object for writing.
8071	*/
8072	STDMETHODIMP SessionMachine::OnSessionEnd (ISession *aSession,
8073	IProgress **aProgress)
8074	{
8075	LogFlowThisFuncEnter();
8076
8077	AssertReturn(aSession, E_INVALIDARG);
8078	AssertReturn(aProgress, E_INVALIDARG);
8079
8080	AutoCaller autoCaller(this);
8081
8082	LogFlowThisFunc(("state=%d\n", autoCaller.state()));
8083	/*
8084	* We don't assert below because it might happen that a non-direct session
8085	* informs us it is closed right after we've been uninitialized -- it's ok.
8086	*/
8087	CheckComRCReturnRC(autoCaller.rc());
8088
8089	/* get IInternalSessionControl interface */
8090	ComPtr<IInternalSessionControl> control (aSession);
8091
8092	ComAssertRet (!control.isNull(), E_INVALIDARG);
8093
8094	AutoWriteLock alock(this);
8095
8096	if (control.equalsTo (mData->mSession.mDirectControl))
8097	{
8098	ComAssertRet (aProgress, E_POINTER);
8099
8100	/* The direct session is being normally closed by the client process
8101	* ----------------------------------------------------------------- */
8102
8103	/* go to the closing state (essential for all open*Session() calls and
8104	* for #checkForDeath()) */
8105	Assert (mData->mSession.mState == SessionState_Open);
8106	mData->mSession.mState = SessionState_Closing;
8107
8108	/* set direct control to NULL to release the remote instance */
8109	mData->mSession.mDirectControl.setNull();
8110	LogFlowThisFunc(("Direct control is set to NULL\n"));
8111
8112	/* Create the progress object the client will use to wait until
8113	* #checkForDeath() is called to uninitialize this session object after
8114	* it releases the IPC semaphore. */
8115	ComObjPtr<Progress> progress;
8116	progress.createObject();
8117	progress->init (mParent, static_cast <IMachine *> (mPeer),
8118	Bstr (tr ("Closing session")), FALSE /* aCancelable */);
8119	progress.queryInterfaceTo(aProgress);
8120	mData->mSession.mProgress = progress;
8121	}
8122	else
8123	{
8124	/* the remote session is being normally closed */
8125	Data::Session::RemoteControlList::iterator it =
8126	mData->mSession.mRemoteControls.begin();
8127	while (it != mData->mSession.mRemoteControls.end())
8128	{
8129	if (control.equalsTo (*it))
8130	break;
8131	++it;
8132	}
8133	BOOL found = it != mData->mSession.mRemoteControls.end();
8134	ComAssertMsgRet (found, ("The session is not found in the session list!"),
8135	E_INVALIDARG);
8136	mData->mSession.mRemoteControls.remove (*it);
8137	}
8138
8139	LogFlowThisFuncLeave();
8140	return S_OK;
8141	}
8142
8143	/**
8144	* @note Locks this object for writing.
8145	*/
8146	STDMETHODIMP SessionMachine::BeginSavingState (IProgress aProgress, BSTR aStateFilePath)
8147	{
8148	LogFlowThisFuncEnter();
8149
8150	AssertReturn(aProgress, E_INVALIDARG);
8151	AssertReturn(aStateFilePath, E_POINTER);
8152
8153	AutoCaller autoCaller(this);
8154	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8155
8156	AutoWriteLock alock(this);
8157
8158	AssertReturn(mData->mMachineState == MachineState_Paused &&
8159	mSnapshotData.mLastState == MachineState_Null &&
8160	mSnapshotData.mProgressId.isEmpty() &&
8161	mSnapshotData.mStateFilePath.isNull(),
8162	E_FAIL);
8163
8164	/* memorize the progress ID and add it to the global collection */
8165	Bstr progressId;
8166	HRESULT rc = aProgress->COMGETTER(Id) (progressId.asOutParam());
8167	AssertComRCReturn (rc, rc);
8168	rc = mParent->addProgress (aProgress);
8169	AssertComRCReturn (rc, rc);
8170
8171	Bstr stateFilePath;
8172	/* stateFilePath is null when the machine is not running */
8173	if (mData->mMachineState == MachineState_Paused)
8174	{
8175	stateFilePath = Utf8StrFmt ("%ls%c{%RTuuid}.sav",
8176	mUserData->mSnapshotFolderFull.raw(),
8177	RTPATH_DELIMITER, mData->mUuid.raw());
8178	}
8179
8180	/* fill in the snapshot data */
8181	mSnapshotData.mLastState = mData->mMachineState;
8182	mSnapshotData.mProgressId = Guid(progressId);
8183	mSnapshotData.mStateFilePath = stateFilePath;
8184
8185	/* set the state to Saving (this is expected by Console::SaveState()) */
8186	setMachineState (MachineState_Saving);
8187
8188	stateFilePath.cloneTo(aStateFilePath);
8189
8190	return S_OK;
8191	}
8192
8193	/**
8194	* @note Locks mParent + this object for writing.
8195	*/
8196	STDMETHODIMP SessionMachine::EndSavingState (BOOL aSuccess)
8197	{
8198	LogFlowThisFunc(("\n"));
8199
8200	AutoCaller autoCaller(this);
8201	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8202
8203	/* endSavingState() need mParent lock */
8204	AutoMultiWriteLock2 alock (mParent, this);
8205
8206	AssertReturn(mData->mMachineState == MachineState_Saving &&
8207	mSnapshotData.mLastState != MachineState_Null &&
8208	!mSnapshotData.mProgressId.isEmpty() &&
8209	!mSnapshotData.mStateFilePath.isNull(),
8210	E_FAIL);
8211
8212	/*
8213	* on success, set the state to Saved;
8214	* on failure, set the state to the state we had when BeginSavingState() was
8215	* called (this is expected by Console::SaveState() and
8216	* Console::saveStateThread())
8217	*/
8218	if (aSuccess)
8219	setMachineState (MachineState_Saved);
8220	else
8221	setMachineState (mSnapshotData.mLastState);
8222
8223	return endSavingState (aSuccess);
8224	}
8225
8226	/**
8227	* @note Locks this object for writing.
8228	*/
8229	STDMETHODIMP SessionMachine::AdoptSavedState (IN_BSTR aSavedStateFile)
8230	{
8231	LogFlowThisFunc(("\n"));
8232
8233	AssertReturn(aSavedStateFile, E_INVALIDARG);
8234
8235	AutoCaller autoCaller(this);
8236	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8237
8238	AutoWriteLock alock(this);
8239
8240	AssertReturn(mData->mMachineState == MachineState_PoweredOff \|\|
8241	mData->mMachineState == MachineState_Aborted,
8242	E_FAIL);
8243
8244	Utf8Str stateFilePathFull = aSavedStateFile;
8245	int vrc = calculateFullPath(stateFilePathFull, stateFilePathFull);
8246	if (RT_FAILURE(vrc))
8247	return setError(VBOX_E_FILE_ERROR,
8248	tr("Invalid saved state file path '%ls' (%Rrc)"),
8249	aSavedStateFile,
8250	vrc);
8251
8252	mSSData->mStateFilePath = stateFilePathFull;
8253
8254	/* The below setMachineState() will detect the state transition and will
8255	* update the settings file */
8256
8257	return setMachineState (MachineState_Saved);
8258	}
8259
8260	/**
8261	* @note Locks mParent + this object for writing.
8262	*/
8263	STDMETHODIMP SessionMachine::BeginTakingSnapshot(IConsole *aInitiator,
8264	IN_BSTR aName,
8265	IN_BSTR aDescription,
8266	IProgress *aConsoleProgress,
8267	BOOL fTakingSnapshotOnline,
8268	BSTR *aStateFilePath)
8269	{
8270	LogFlowThisFuncEnter();
8271
8272	AssertReturn(aInitiator && aName, E_INVALIDARG);
8273	AssertReturn(aStateFilePath, E_POINTER);
8274
8275	LogFlowThisFunc(("aName='%ls'\n", aName));
8276
8277	AutoCaller autoCaller(this);
8278	AssertComRCReturn(autoCaller.rc(), autoCaller.rc());
8279
8280	/* saveSettings() needs mParent lock */
8281	AutoMultiWriteLock2 alock(mParent, this);
8282
8283	#ifdef VBOX_WITH_LIVE_MIGRATION
8284	AssertReturn( !Global::IsOnlineOrTransient(mData->mMachineState)
8285	\|\| mData->mMachineState == MachineState_Running
8286	\|\| mData->mMachineState == MachineState_Paused, E_FAIL);
8287	#else
8288	AssertReturn( !Global::IsOnlineOrTransient(mData->mMachineState)
8289	\|\| mData->mMachineState == MachineState_Paused, E_FAIL);
8290	#endif
8291	AssertReturn(mSnapshotData.mLastState == MachineState_Null, E_FAIL);
8292	AssertReturn(mSnapshotData.mSnapshot.isNull(), E_FAIL);
8293
8294	if ( !fTakingSnapshotOnline
8295	&& mData->mMachineState != MachineState_Saved
8296	)
8297	{
8298	/* save all current settings to ensure current changes are committed and
8299	* hard disks are fixed up */
8300	HRESULT rc = saveSettings();
8301	CheckComRCReturnRC(rc);
8302	}
8303
8304	/* create an ID for the snapshot */
8305	Guid snapshotId;
8306	snapshotId.create();
8307
8308	Utf8Str strStateFilePath;
8309	/* stateFilePath is null when the machine is not online nor saved */
8310	if ( fTakingSnapshotOnline
8311	\|\| mData->mMachineState == MachineState_Saved)
8312	{
8313	strStateFilePath = Utf8StrFmt("%ls%c{%RTuuid}.sav",
8314	mUserData->mSnapshotFolderFull.raw(),
8315	RTPATH_DELIMITER,
8316	snapshotId.ptr());
8317	/* ensure the directory for the saved state file exists */
8318	HRESULT rc = VirtualBox::ensureFilePathExists(strStateFilePath);
8319	CheckComRCReturnRC(rc);
8320	}
8321
8322	/* create a snapshot machine object */
8323	ComObjPtr<SnapshotMachine> snapshotMachine;
8324	snapshotMachine.createObject();
8325	HRESULT rc = snapshotMachine->init(this, snapshotId, strStateFilePath);
8326	AssertComRCReturn(rc, rc);
8327
8328	/* create a snapshot object */
8329	RTTIMESPEC time;
8330	ComObjPtr<Snapshot> pSnapshot;
8331	pSnapshot.createObject();
8332	rc = pSnapshot->init(mParent,
8333	snapshotId,
8334	aName,
8335	aDescription,
8336	*RTTimeNow(&time),
8337	snapshotMachine,
8338	mData->mCurrentSnapshot);
8339	AssertComRCReturnRC(rc);
8340
8341	/* fill in the snapshot data */
8342	mSnapshotData.mLastState = mData->mMachineState;
8343	mSnapshotData.mSnapshot = pSnapshot;
8344
8345	try
8346	{
8347	LogFlowThisFunc(("Creating differencing hard disks (online=%d)...\n",
8348	fTakingSnapshotOnline));
8349
8350	// backup the media data so we can recover if things goes wrong along the day;
8351	// the matching commit() is in fixupMedia() during endSnapshot()
8352	mMediaData.backup();
8353
8354	/* set the state to Saving (this is expected by Console::TakeSnapshot()) */
8355	setMachineState(MachineState_Saving);
8356
8357	/* create new differencing hard disks and attach them to this machine */
8358	rc = createImplicitDiffs(mUserData->mSnapshotFolderFull,
8359	aConsoleProgress,
8360	1, // operation weight; must be the same as in Console::TakeSnapshot()
8361	fTakingSnapshotOnline);
8362
8363	if (SUCCEEDED(rc) && mSnapshotData.mLastState == MachineState_Saved)
8364	{
8365	Utf8Str stateFrom = mSSData->mStateFilePath;
8366	Utf8Str stateTo = mSnapshotData.mSnapshot->stateFilePath();
8367
8368	LogFlowThisFunc(("Copying the execution state from '%s' to '%s'...\n",
8369	stateFrom.raw(), stateTo.raw()));
8370
8371	aConsoleProgress->SetNextOperation(Bstr(tr("Copying the execution state")),
8372	1); // weight
8373
8374	/* Leave the lock before a lengthy operation (mMachineState is
8375	* MachineState_Saving here) */
8376	alock.leave();
8377
8378	/* copy the state file */
8379	int vrc = RTFileCopyEx(stateFrom.c_str(),
8380	stateTo.c_str(),
8381	0,
8382	progressCallback,
8383	aConsoleProgress);
8384	alock.enter();
8385
8386	if (RT_FAILURE(vrc))
8387	throw setError(E_FAIL,
8388	tr("Could not copy the state file '%s' to '%s' (%Rrc)"),
8389	stateFrom.raw(),
8390	stateTo.raw(),
8391	vrc);
8392	}
8393	}
8394	catch (HRESULT rc)
8395	{
8396	pSnapshot->uninit();
8397	pSnapshot.setNull();
8398	}
8399
8400	if (fTakingSnapshotOnline)
8401	strStateFilePath.cloneTo(aStateFilePath);
8402	else
8403	*aStateFilePath = NULL;
8404
8405	LogFlowThisFuncLeave();
8406	return rc;
8407	}
8408
8409	/**
8410	* @note Locks this object for writing.
8411	*/
8412	STDMETHODIMP SessionMachine::EndTakingSnapshot(BOOL aSuccess)
8413	{
8414	LogFlowThisFunc(("\n"));
8415
8416	AutoCaller autoCaller(this);
8417	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8418
8419	AutoWriteLock alock(this);
8420
8421	AssertReturn(!aSuccess \|\|
8422	(mData->mMachineState == MachineState_Saving &&
8423	mSnapshotData.mLastState != MachineState_Null &&
8424	!mSnapshotData.mSnapshot.isNull()),
8425	E_FAIL);
8426
8427	/*
8428	* Restore the state we had when BeginTakingSnapshot() was called,
8429	* Console::fntTakeSnapshotWorker restores its local copy when we return.
8430	* If the state was Running, then let Console::fntTakeSnapshotWorker it
8431	* all via Console::Resume().
8432	*/
8433	if ( mData->mMachineState != mSnapshotData.mLastState
8434	&& mSnapshotData.mLastState != MachineState_Running)
8435	setMachineState(mSnapshotData.mLastState);
8436
8437	return endTakingSnapshot(aSuccess);
8438	}
8439
8440	/**
8441	* @note Locks mParent + this + children objects for writing!
8442	*/
8443	STDMETHODIMP SessionMachine::DiscardSnapshot(IConsole *aInitiator,
8444	IN_BSTR aId,
8445	MachineState_T *aMachineState,
8446	IProgress **aProgress)
8447	{
8448	LogFlowThisFunc(("\n"));
8449
8450	Guid id(aId);
8451	AssertReturn(aInitiator && !id.isEmpty(), E_INVALIDARG);
8452	AssertReturn(aMachineState && aProgress, E_POINTER);
8453
8454	AutoCaller autoCaller(this);
8455	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8456
8457	/* saveSettings() needs mParent lock */
8458	AutoMultiWriteLock2 alock(mParent, this);
8459
8460	ComAssertRet (!Global::IsOnlineOrTransient (mData->mMachineState), E_FAIL);
8461
8462	AutoWriteLock treeLock(snapshotsTreeLockHandle());
8463
8464	ComObjPtr<Snapshot> snapshot;
8465	HRESULT rc = findSnapshot(id, snapshot, true /* aSetError */);
8466	CheckComRCReturnRC(rc);
8467
8468	AutoWriteLock snapshotLock(snapshot);
8469
8470	size_t childrenCount = snapshot->getChildrenCount();
8471	if (childrenCount > 1)
8472	return setError(VBOX_E_INVALID_OBJECT_STATE,
8473	tr("Snapshot '%s' of the machine '%ls' has more than one child snapshot (%d)"),
8474	snapshot->getName().c_str(),
8475	mUserData->mName.raw(),
8476	childrenCount);
8477
8478	/* If the snapshot being discarded is the current one, ensure current
8479	* settings are committed and saved.
8480	*/
8481	if (snapshot == mData->mCurrentSnapshot)
8482	{
8483	if (isModified())
8484	{
8485	rc = saveSettings();
8486	CheckComRCReturnRC (rc);
8487	}
8488	}
8489
8490	/* create a progress object. The number of operations is:
8491	* 1 (preparing) + # of hard disks + 1 if the snapshot is online
8492	*/
8493	ComObjPtr<Progress> progress;
8494	progress.createObject();
8495	rc = progress->init (mParent, aInitiator,
8496	Bstr(Utf8StrFmt(tr("Discarding snapshot '%s'"),
8497	snapshot->getName().c_str())),
8498	FALSE /* aCancelable */,
8499	1 + (ULONG)snapshot->getSnapshotMachine()->mMediaData->mAttachments.size() +
8500	(snapshot->stateFilePath().isNull() ? 0 : 1),
8501	Bstr (tr ("Preparing to discard snapshot")));
8502	AssertComRCReturn (rc, rc);
8503
8504	/* create and start the task on a separate thread */
8505	DiscardSnapshotTask *task = new DiscardSnapshotTask (this, progress, snapshot);
8506	int vrc = RTThreadCreate (NULL, taskHandler,
8507	(void *) task,
8508	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardSnapshot");
8509	if (RT_FAILURE(vrc))
8510	delete task;
8511	ComAssertRCRet (vrc, E_FAIL);
8512
8513	/* set the proper machine state (note: after creating a Task instance) */
8514	setMachineState(MachineState_Discarding);
8515
8516	/* return the progress to the caller */
8517	progress.queryInterfaceTo(aProgress);
8518
8519	/* return the new state to the caller */
8520	*aMachineState = mData->mMachineState;
8521
8522	return S_OK;
8523	}
8524
8525	/**
8526	* @note Locks this + children objects for writing!
8527	*/
8528	STDMETHODIMP SessionMachine::DiscardCurrentState (
8529	IConsole aInitiator, MachineState_T aMachineState, IProgress **aProgress)
8530	{
8531	LogFlowThisFunc(("\n"));
8532
8533	AssertReturn(aInitiator, E_INVALIDARG);
8534	AssertReturn(aMachineState && aProgress, E_POINTER);
8535
8536	AutoCaller autoCaller(this);
8537	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8538
8539	AutoWriteLock alock(this);
8540
8541	ComAssertRet (!Global::IsOnlineOrTransient (mData->mMachineState), E_FAIL);
8542
8543	if (mData->mCurrentSnapshot.isNull())
8544	return setError(VBOX_E_INVALID_OBJECT_STATE,
8545	tr("Could not discard the current state of the machine '%ls' because it doesn't have any snapshots"),
8546	mUserData->mName.raw());
8547
8548	/* create a progress object. The number of operations is: 1 (preparing) + #
8549	* of hard disks + 1 (if we need to copy the saved state file) */
8550	ComObjPtr<Progress> progress;
8551	progress.createObject();
8552	{
8553	ULONG opCount = 1 + (ULONG)mData->mCurrentSnapshot->getSnapshotMachine()->mMediaData->mAttachments.size();
8554	if (mData->mCurrentSnapshot->stateFilePath())
8555	++opCount;
8556	progress->init (mParent, aInitiator,
8557	Bstr (tr ("Discarding current machine state")),
8558	FALSE /* aCancelable */, opCount,
8559	Bstr (tr ("Preparing to discard current state")));
8560	}
8561
8562	/* create and start the task on a separate thread (note that it will not
8563	* start working until we release alock) */
8564	DiscardCurrentStateTask *task =
8565	new DiscardCurrentStateTask (this, progress, false /* discardCurSnapshot */);
8566	int vrc = RTThreadCreate (NULL, taskHandler,
8567	(void *) task,
8568	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardCurState");
8569	if (RT_FAILURE(vrc))
8570	{
8571	delete task;
8572	ComAssertRCRet (vrc, E_FAIL);
8573	}
8574
8575	/* set the proper machine state (note: after creating a Task instance) */
8576	setMachineState (MachineState_Discarding);
8577
8578	/* return the progress to the caller */
8579	progress.queryInterfaceTo(aProgress);
8580
8581	/* return the new state to the caller */
8582	*aMachineState = mData->mMachineState;
8583
8584	return S_OK;
8585	}
8586
8587	/**
8588	* @note Locks thos object for writing!
8589	*/
8590	STDMETHODIMP SessionMachine::DiscardCurrentSnapshotAndState(IConsole *aInitiator,
8591	MachineState_T *aMachineState,
8592	IProgress **aProgress)
8593	{
8594	LogFlowThisFunc(("\n"));
8595
8596	AssertReturn(aInitiator, E_INVALIDARG);
8597	AssertReturn(aMachineState && aProgress, E_POINTER);
8598
8599	AutoCaller autoCaller(this);
8600	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8601
8602	AutoWriteLock alock(this);
8603
8604	ComAssertRet (!Global::IsOnlineOrTransient (mData->mMachineState), E_FAIL);
8605
8606	if (mData->mCurrentSnapshot.isNull())
8607	return setError(VBOX_E_INVALID_OBJECT_STATE,
8608	tr("Could not discard the current state of the machine '%ls' "
8609	"because it doesn't have any snapshots"),
8610	mUserData->mName.raw());
8611
8612	/* create a progress object. The number of operations is:
8613	* 1 (preparing) + # of hard disks in the current snapshot +
8614	* # of hard disks in the previous snapshot +
8615	* 1 if we need to copy the saved state file of the previous snapshot +
8616	* 1 if the current snapshot is online
8617	* or (if there is no previous snapshot):
8618	* 1 (preparing) + # of hard disks in the current snapshot * 2 +
8619	* 1 if we need to copy the saved state file of the current snapshot * 2
8620	*/
8621	ComObjPtr<Progress> progress;
8622	progress.createObject();
8623	{
8624	ComObjPtr<Snapshot> curSnapshot = mData->mCurrentSnapshot;
8625	ComObjPtr<Snapshot> prevSnapshot = mData->mCurrentSnapshot->parent();
8626
8627	ULONG opCount = 1;
8628	if (prevSnapshot)
8629	{
8630	opCount += (ULONG)curSnapshot->getSnapshotMachine()->mMediaData->mAttachments.size();
8631	opCount += (ULONG)prevSnapshot->getSnapshotMachine()->mMediaData->mAttachments.size();
8632	if (prevSnapshot->stateFilePath())
8633	++opCount;
8634	if (curSnapshot->stateFilePath())
8635	++opCount;
8636	}
8637	else
8638	{
8639	opCount +=
8640	(ULONG)curSnapshot->getSnapshotMachine()->mMediaData->mAttachments.size() * 2;
8641	if (curSnapshot->stateFilePath())
8642	opCount += 2;
8643	}
8644
8645	progress->init(mParent, aInitiator,
8646	Bstr (tr ("Discarding current machine snapshot and state")),
8647	FALSE /* aCancelable */, opCount,
8648	Bstr (tr ("Preparing to discard current snapshot and state")));
8649	}
8650
8651	/* create and start the task on a separate thread */
8652	DiscardCurrentStateTask *task =
8653	new DiscardCurrentStateTask (this, progress, true /* discardCurSnapshot */);
8654	int vrc = RTThreadCreate(NULL, taskHandler,
8655	(void *) task,
8656	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardCurStSnp");
8657	if (RT_FAILURE(vrc))
8658	{
8659	delete task;
8660	ComAssertRCRet(vrc, E_FAIL);
8661	}
8662
8663	/* set the proper machine state (note: after creating a Task instance) */
8664	setMachineState(MachineState_Discarding);
8665
8666	/* return the progress to the caller */
8667	progress.queryInterfaceTo(aProgress);
8668
8669	/* return the new state to the caller */
8670	*aMachineState = mData->mMachineState;
8671
8672	return S_OK;
8673	}
8674
8675	STDMETHODIMP SessionMachine::PullGuestProperties(ComSafeArrayOut(BSTR, aNames),
8676	ComSafeArrayOut(BSTR, aValues),
8677	ComSafeArrayOut(ULONG64, aTimestamps),
8678	ComSafeArrayOut(BSTR, aFlags))
8679	{
8680	LogFlowThisFunc(("\n"));
8681
8682	#ifdef VBOX_WITH_GUEST_PROPS
8683	using namespace guestProp;
8684
8685	AutoCaller autoCaller(this);
8686	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8687
8688	AutoReadLock alock(this);
8689
8690	AssertReturn(!ComSafeArrayOutIsNull(aNames), E_POINTER);
8691	AssertReturn(!ComSafeArrayOutIsNull(aValues), E_POINTER);
8692	AssertReturn(!ComSafeArrayOutIsNull(aTimestamps), E_POINTER);
8693	AssertReturn(!ComSafeArrayOutIsNull(aFlags), E_POINTER);
8694
8695	size_t cEntries = mHWData->mGuestProperties.size();
8696	com::SafeArray<BSTR> names (cEntries);
8697	com::SafeArray<BSTR> values (cEntries);
8698	com::SafeArray<ULONG64> timestamps (cEntries);
8699	com::SafeArray<BSTR> flags (cEntries);
8700	unsigned i = 0;
8701	for (HWData::GuestPropertyList::iterator it = mHWData->mGuestProperties.begin();
8702	it != mHWData->mGuestProperties.end();
8703	++it)
8704	{
8705	char szFlags[MAX_FLAGS_LEN + 1];
8706	it->strName.cloneTo(&names[i]);
8707	it->strValue.cloneTo(&values[i]);
8708	timestamps[i] = it->mTimestamp;
8709	/* If it is NULL, keep it NULL. */
8710	if (it->mFlags)
8711	{
8712	writeFlags(it->mFlags, szFlags);
8713	Bstr(szFlags).cloneTo(&flags[i]);
8714	}
8715	else
8716	flags[i] = NULL;
8717	++i;
8718	}
8719	names.detachTo(ComSafeArrayOutArg(aNames));
8720	values.detachTo(ComSafeArrayOutArg(aValues));
8721	timestamps.detachTo(ComSafeArrayOutArg(aTimestamps));
8722	flags.detachTo(ComSafeArrayOutArg(aFlags));
8723	mHWData->mPropertyServiceActive = true;
8724	return S_OK;
8725	#else
8726	ReturnComNotImplemented();
8727	#endif
8728	}
8729
8730	STDMETHODIMP SessionMachine::PushGuestProperties(ComSafeArrayIn (IN_BSTR, aNames),
8731	ComSafeArrayIn (IN_BSTR, aValues),
8732	ComSafeArrayIn (ULONG64, aTimestamps),
8733	ComSafeArrayIn (IN_BSTR, aFlags))
8734	{
8735	LogFlowThisFunc(("\n"));
8736
8737	#ifdef VBOX_WITH_GUEST_PROPS
8738	using namespace guestProp;
8739
8740	AutoCaller autoCaller(this);
8741	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8742
8743	AutoWriteLock alock(this);
8744
8745	/* Temporarily reset the registered flag, so that our machine state
8746	* changes (i.e. mHWData.backup()) succeed. (isMutable() used in
8747	* all setters will return FALSE for a Machine instance if mRegistered
8748	* is TRUE). This is copied from registeredInit(), and may or may not be
8749	* the right way to handle this. */
8750	mData->mRegistered = FALSE;
8751	HRESULT rc = checkStateDependency(MutableStateDep);
8752	LogRel (("checkStateDependency(MutableStateDep) returned 0x%x\n", rc));
8753	CheckComRCReturnRC(rc);
8754
8755	// ComAssertRet (mData->mMachineState < MachineState_Running, E_FAIL);
8756
8757	AssertReturn(!ComSafeArrayInIsNull (aNames), E_POINTER);
8758	AssertReturn(!ComSafeArrayInIsNull (aValues), E_POINTER);
8759	AssertReturn(!ComSafeArrayInIsNull (aTimestamps), E_POINTER);
8760	AssertReturn(!ComSafeArrayInIsNull (aFlags), E_POINTER);
8761
8762	com::SafeArray<IN_BSTR> names (ComSafeArrayInArg (aNames));
8763	com::SafeArray<IN_BSTR> values (ComSafeArrayInArg (aValues));
8764	com::SafeArray<ULONG64> timestamps (ComSafeArrayInArg (aTimestamps));
8765	com::SafeArray<IN_BSTR> flags (ComSafeArrayInArg (aFlags));
8766	DiscardSettings();
8767	mHWData.backup();
8768	mHWData->mGuestProperties.erase (mHWData->mGuestProperties.begin(),
8769	mHWData->mGuestProperties.end());
8770	for (unsigned i = 0; i < names.size(); ++i)
8771	{
8772	uint32_t fFlags = NILFLAG;
8773	validateFlags (Utf8Str (flags[i]).raw(), &fFlags);
8774	HWData::GuestProperty property = { names[i], values[i], timestamps[i], fFlags };
8775	mHWData->mGuestProperties.push_back (property);
8776	}
8777	mHWData->mPropertyServiceActive = false;
8778	alock.unlock();
8779	SaveSettings();
8780	/* Restore the mRegistered flag. */
8781	mData->mRegistered = TRUE;
8782	return S_OK;
8783	#else
8784	ReturnComNotImplemented();
8785	#endif
8786	}
8787
8788	STDMETHODIMP SessionMachine::PushGuestProperty(IN_BSTR aName,
8789	IN_BSTR aValue,
8790	ULONG64 aTimestamp,
8791	IN_BSTR aFlags)
8792	{
8793	LogFlowThisFunc(("\n"));
8794
8795	#ifdef VBOX_WITH_GUEST_PROPS
8796	using namespace guestProp;
8797
8798	CheckComArgNotNull (aName);
8799	if ((aValue != NULL) && (!VALID_PTR (aValue) \|\| !VALID_PTR (aFlags)))
8800	return E_POINTER; /* aValue can be NULL to indicate deletion */
8801
8802	try
8803	{
8804	Utf8Str utf8Name(aName);
8805	Utf8Str utf8Flags(aFlags);
8806	Utf8Str utf8Patterns(mHWData->mGuestPropertyNotificationPatterns);
8807
8808	uint32_t fFlags = NILFLAG;
8809	if ((aFlags != NULL) && RT_FAILURE(validateFlags (utf8Flags.raw(), &fFlags)))
8810	return E_INVALIDARG;
8811
8812	bool matchAll = false;
8813	if (utf8Patterns.isEmpty())
8814	matchAll = true;
8815
8816	AutoCaller autoCaller(this);
8817	CheckComRCReturnRC(autoCaller.rc());
8818
8819	AutoWriteLock alock(this);
8820
8821	HRESULT rc = checkStateDependency(MutableStateDep);
8822	CheckComRCReturnRC(rc);
8823
8824	mHWData.backup();
8825	for (HWData::GuestPropertyList::iterator iter = mHWData->mGuestProperties.begin();
8826	iter != mHWData->mGuestProperties.end();
8827	++iter)
8828	if (utf8Name == iter->strName)
8829	{
8830	mHWData->mGuestProperties.erase(iter);
8831	break;
8832	}
8833	if (aValue != NULL)
8834	{
8835	HWData::GuestProperty property = { aName, aValue, aTimestamp, fFlags };
8836	mHWData->mGuestProperties.push_back (property);
8837	}
8838
8839	/* send a callback notification if appropriate */
8840	alock.leave();
8841	if ( matchAll
8842	\|\| RTStrSimplePatternMultiMatch(utf8Patterns.raw(),
8843	RTSTR_MAX,
8844	utf8Name.raw(),
8845	RTSTR_MAX, NULL)
8846	)
8847	mParent->onGuestPropertyChange(mData->mUuid,
8848	aName,
8849	aValue,
8850	aFlags);
8851	}
8852	catch(std::bad_alloc &)
8853	{
8854	return E_OUTOFMEMORY;
8855	}
8856	return S_OK;
8857	#else
8858	ReturnComNotImplemented();
8859	#endif
8860	}
8861
8862	// public methods only for internal purposes
8863	/////////////////////////////////////////////////////////////////////////////
8864
8865	/**
8866	* Called from the client watcher thread to check for expected or unexpected
8867	* death of the client process that has a direct session to this machine.
8868	*
8869	* On Win32 and on OS/2, this method is called only when we've got the
8870	* mutex (i.e. the client has either died or terminated normally) so it always
8871	* returns @c true (the client is terminated, the session machine is
8872	* uninitialized).
8873	*
8874	* On other platforms, the method returns @c true if the client process has
8875	* terminated normally or abnormally and the session machine was uninitialized,
8876	* and @c false if the client process is still alive.
8877	*
8878	* @note Locks this object for writing.
8879	*/
8880	bool SessionMachine::checkForDeath()
8881	{
8882	Uninit::Reason reason;
8883	bool terminated = false;
8884
8885	/* Enclose autoCaller with a block because calling uninit() from under it
8886	* will deadlock. */
8887	{
8888	AutoCaller autoCaller(this);
8889	if (!autoCaller.isOk())
8890	{
8891	/* return true if not ready, to cause the client watcher to exclude
8892	* the corresponding session from watching */
8893	LogFlowThisFunc(("Already uninitialized!"));
8894	return true;
8895	}
8896
8897	AutoWriteLock alock(this);
8898
8899	/* Determine the reason of death: if the session state is Closing here,
8900	* everything is fine. Otherwise it means that the client did not call
8901	* OnSessionEnd() before it released the IPC semaphore. This may happen
8902	* either because the client process has abnormally terminated, or
8903	* because it simply forgot to call ISession::Close() before exiting. We
8904	* threat the latter also as an abnormal termination (see
8905	* Session::uninit() for details). */
8906	reason = mData->mSession.mState == SessionState_Closing ?
8907	Uninit::Normal :
8908	Uninit::Abnormal;
8909
8910	#if defined(RT_OS_WINDOWS)
8911
8912	AssertMsg (mIPCSem, ("semaphore must be created"));
8913
8914	/* release the IPC mutex */
8915	::ReleaseMutex (mIPCSem);
8916
8917	terminated = true;
8918
8919	#elif defined(RT_OS_OS2)
8920
8921	AssertMsg (mIPCSem, ("semaphore must be created"));
8922
8923	/* release the IPC mutex */
8924	::DosReleaseMutexSem (mIPCSem);
8925
8926	terminated = true;
8927
8928	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
8929
8930	AssertMsg (mIPCSem >= 0, ("semaphore must be created"));
8931
8932	int val = ::semctl (mIPCSem, 0, GETVAL);
8933	if (val > 0)
8934	{
8935	/* the semaphore is signaled, meaning the session is terminated */
8936	terminated = true;
8937	}
8938
8939	#else
8940	# error "Port me!"
8941	#endif
8942
8943	} /* AutoCaller block */
8944
8945	if (terminated)
8946	uninit (reason);
8947
8948	return terminated;
8949	}
8950
8951	/**
8952	* @note Locks this object for reading.
8953	*/
8954	HRESULT SessionMachine::onNetworkAdapterChange (INetworkAdapter *networkAdapter, BOOL changeAdapter)
8955	{
8956	LogFlowThisFunc(("\n"));
8957
8958	AutoCaller autoCaller(this);
8959	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8960
8961	ComPtr<IInternalSessionControl> directControl;
8962	{
8963	AutoReadLock alock(this);
8964	directControl = mData->mSession.mDirectControl;
8965	}
8966
8967	/* ignore notifications sent after #OnSessionEnd() is called */
8968	if (!directControl)
8969	return S_OK;
8970
8971	return directControl->OnNetworkAdapterChange (networkAdapter, changeAdapter);
8972	}
8973
8974	/**
8975	* @note Locks this object for reading.
8976	*/
8977	HRESULT SessionMachine::onSerialPortChange (ISerialPort *serialPort)
8978	{
8979	LogFlowThisFunc(("\n"));
8980
8981	AutoCaller autoCaller(this);
8982	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8983
8984	ComPtr<IInternalSessionControl> directControl;
8985	{
8986	AutoReadLock alock(this);
8987	directControl = mData->mSession.mDirectControl;
8988	}
8989
8990	/* ignore notifications sent after #OnSessionEnd() is called */
8991	if (!directControl)
8992	return S_OK;
8993
8994	return directControl->OnSerialPortChange (serialPort);
8995	}
8996
8997	/**
8998	* @note Locks this object for reading.
8999	*/
9000	HRESULT SessionMachine::onParallelPortChange (IParallelPort *parallelPort)
9001	{
9002	LogFlowThisFunc(("\n"));
9003
9004	AutoCaller autoCaller(this);
9005	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9006
9007	ComPtr<IInternalSessionControl> directControl;
9008	{
9009	AutoReadLock alock(this);
9010	directControl = mData->mSession.mDirectControl;
9011	}
9012
9013	/* ignore notifications sent after #OnSessionEnd() is called */
9014	if (!directControl)
9015	return S_OK;
9016
9017	return directControl->OnParallelPortChange (parallelPort);
9018	}
9019
9020	/**
9021	* @note Locks this object for reading.
9022	*/
9023	HRESULT SessionMachine::onStorageControllerChange ()
9024	{
9025	LogFlowThisFunc(("\n"));
9026
9027	AutoCaller autoCaller(this);
9028	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9029
9030	ComPtr<IInternalSessionControl> directControl;
9031	{
9032	AutoReadLock alock(this);
9033	directControl = mData->mSession.mDirectControl;
9034	}
9035
9036	/* ignore notifications sent after #OnSessionEnd() is called */
9037	if (!directControl)
9038	return S_OK;
9039
9040	return directControl->OnStorageControllerChange ();
9041	}
9042
9043	/**
9044	* @note Locks this object for reading.
9045	*/
9046	HRESULT SessionMachine::onMediumChange(IMediumAttachment *aAttachment)
9047	{
9048	LogFlowThisFunc(("\n"));
9049
9050	AutoCaller autoCaller(this);
9051	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9052
9053	ComPtr<IInternalSessionControl> directControl;
9054	{
9055	AutoReadLock alock(this);
9056	directControl = mData->mSession.mDirectControl;
9057	}
9058
9059	/* ignore notifications sent after #OnSessionEnd() is called */
9060	if (!directControl)
9061	return S_OK;
9062
9063	return directControl->OnMediumChange(aAttachment);
9064	}
9065
9066	/**
9067	* @note Locks this object for reading.
9068	*/
9069	HRESULT SessionMachine::onVRDPServerChange()
9070	{
9071	LogFlowThisFunc(("\n"));
9072
9073	AutoCaller autoCaller(this);
9074	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9075
9076	ComPtr<IInternalSessionControl> directControl;
9077	{
9078	AutoReadLock alock(this);
9079	directControl = mData->mSession.mDirectControl;
9080	}
9081
9082	/* ignore notifications sent after #OnSessionEnd() is called */
9083	if (!directControl)
9084	return S_OK;
9085
9086	return directControl->OnVRDPServerChange();
9087	}
9088
9089	/**
9090	* @note Locks this object for reading.
9091	*/
9092	HRESULT SessionMachine::onUSBControllerChange()
9093	{
9094	LogFlowThisFunc(("\n"));
9095
9096	AutoCaller autoCaller(this);
9097	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9098
9099	ComPtr<IInternalSessionControl> directControl;
9100	{
9101	AutoReadLock alock(this);
9102	directControl = mData->mSession.mDirectControl;
9103	}
9104
9105	/* ignore notifications sent after #OnSessionEnd() is called */
9106	if (!directControl)
9107	return S_OK;
9108
9109	return directControl->OnUSBControllerChange();
9110	}
9111
9112	/**
9113	* @note Locks this object for reading.
9114	*/
9115	HRESULT SessionMachine::onSharedFolderChange()
9116	{
9117	LogFlowThisFunc(("\n"));
9118
9119	AutoCaller autoCaller(this);
9120	AssertComRCReturnRC(autoCaller.rc());
9121
9122	ComPtr<IInternalSessionControl> directControl;
9123	{
9124	AutoReadLock alock(this);
9125	directControl = mData->mSession.mDirectControl;
9126	}
9127
9128	/* ignore notifications sent after #OnSessionEnd() is called */
9129	if (!directControl)
9130	return S_OK;
9131
9132	return directControl->OnSharedFolderChange (FALSE /* aGlobal */);
9133	}
9134
9135	/**
9136	* Returns @c true if this machine's USB controller reports it has a matching
9137	* filter for the given USB device and @c false otherwise.
9138	*
9139	* @note Locks this object for reading.
9140	*/
9141	bool SessionMachine::hasMatchingUSBFilter (const ComObjPtr<HostUSBDevice> &aDevice, ULONG *aMaskedIfs)
9142	{
9143	AutoCaller autoCaller(this);
9144	/* silently return if not ready -- this method may be called after the
9145	* direct machine session has been called */
9146	if (!autoCaller.isOk())
9147	return false;
9148
9149	AutoReadLock alock(this);
9150
9151	#ifdef VBOX_WITH_USB
9152	switch (mData->mMachineState)
9153	{
9154	case MachineState_Starting:
9155	case MachineState_Restoring:
9156	case MachineState_Paused:
9157	case MachineState_Running:
9158	return mUSBController->hasMatchingFilter (aDevice, aMaskedIfs);
9159	default: break;
9160	}
9161	#else
9162	NOREF(aDevice);
9163	NOREF(aMaskedIfs);
9164	#endif
9165	return false;
9166	}
9167
9168	/**
9169	* @note The calls shall hold no locks. Will temporarily lock this object for reading.
9170	*/
9171	HRESULT SessionMachine::onUSBDeviceAttach (IUSBDevice *aDevice,
9172	IVirtualBoxErrorInfo *aError,
9173	ULONG aMaskedIfs)
9174	{
9175	LogFlowThisFunc(("\n"));
9176
9177	AutoCaller autoCaller(this);
9178
9179	/* This notification may happen after the machine object has been
9180	* uninitialized (the session was closed), so don't assert. */
9181	CheckComRCReturnRC(autoCaller.rc());
9182
9183	ComPtr<IInternalSessionControl> directControl;
9184	{
9185	AutoReadLock alock(this);
9186	directControl = mData->mSession.mDirectControl;
9187	}
9188
9189	/* fail on notifications sent after #OnSessionEnd() is called, it is
9190	* expected by the caller */
9191	if (!directControl)
9192	return E_FAIL;
9193
9194	/* No locks should be held at this point. */
9195	AssertMsg (RTThreadGetWriteLockCount (RTThreadSelf()) == 0, ("%d\n", RTThreadGetWriteLockCount (RTThreadSelf())));
9196	AssertMsg (RTThreadGetReadLockCount (RTThreadSelf()) == 0, ("%d\n", RTThreadGetReadLockCount (RTThreadSelf())));
9197
9198	return directControl->OnUSBDeviceAttach (aDevice, aError, aMaskedIfs);
9199	}
9200
9201	/**
9202	* @note The calls shall hold no locks. Will temporarily lock this object for reading.
9203	*/
9204	HRESULT SessionMachine::onUSBDeviceDetach (IN_BSTR aId,
9205	IVirtualBoxErrorInfo *aError)
9206	{
9207	LogFlowThisFunc(("\n"));
9208
9209	AutoCaller autoCaller(this);
9210
9211	/* This notification may happen after the machine object has been
9212	* uninitialized (the session was closed), so don't assert. */
9213	CheckComRCReturnRC(autoCaller.rc());
9214
9215	ComPtr<IInternalSessionControl> directControl;
9216	{
9217	AutoReadLock alock(this);
9218	directControl = mData->mSession.mDirectControl;
9219	}
9220
9221	/* fail on notifications sent after #OnSessionEnd() is called, it is
9222	* expected by the caller */
9223	if (!directControl)
9224	return E_FAIL;
9225
9226	/* No locks should be held at this point. */
9227	AssertMsg (RTThreadGetWriteLockCount (RTThreadSelf()) == 0, ("%d\n", RTThreadGetWriteLockCount (RTThreadSelf())));
9228	AssertMsg (RTThreadGetReadLockCount (RTThreadSelf()) == 0, ("%d\n", RTThreadGetReadLockCount (RTThreadSelf())));
9229
9230	return directControl->OnUSBDeviceDetach (aId, aError);
9231	}
9232
9233	// protected methods
9234	/////////////////////////////////////////////////////////////////////////////
9235
9236	/**
9237	* Helper method to finalize saving the state.
9238	*
9239	* @note Must be called from under this object's lock.
9240	*
9241	* @param aSuccess TRUE if the snapshot has been taken successfully
9242	*
9243	* @note Locks mParent + this objects for writing.
9244	*/
9245	HRESULT SessionMachine::endSavingState (BOOL aSuccess)
9246	{
9247	LogFlowThisFuncEnter();
9248
9249	AutoCaller autoCaller(this);
9250	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9251
9252	/* saveSettings() needs mParent lock */
9253	AutoMultiWriteLock2 alock (mParent, this);
9254
9255	HRESULT rc = S_OK;
9256
9257	if (aSuccess)
9258	{
9259	mSSData->mStateFilePath = mSnapshotData.mStateFilePath;
9260
9261	/* save all VM settings */
9262	rc = saveSettings();
9263	}
9264	else
9265	{
9266	/* delete the saved state file (it might have been already created) */
9267	RTFileDelete(Utf8Str(mSnapshotData.mStateFilePath).c_str());
9268	}
9269
9270	/* remove the completed progress object */
9271	mParent->removeProgress (mSnapshotData.mProgressId);
9272
9273	/* clear out the temporary saved state data */
9274	mSnapshotData.mLastState = MachineState_Null;
9275	mSnapshotData.mProgressId.clear();
9276	mSnapshotData.mStateFilePath.setNull();
9277
9278	LogFlowThisFuncLeave();
9279	return rc;
9280	}
9281
9282	/**
9283	* Helper method to finalize taking a snapshot. Gets called to finalize the
9284	* "take snapshot" procedure, either from the public SessionMachine::EndTakingSnapshot()
9285	* if taking the snapshot failed/was aborted or from the takeSnapshotHandler thread
9286	* when taking the snapshot succeeded.
9287	*
9288	* Expected to be called after completing all the tasks related to taking the
9289	* snapshot, either successfully or unsuccessfilly.
9290	*
9291	* @param aSuccess TRUE if the snapshot has been taken successfully.
9292	*
9293	* @note Locks this objects for writing.
9294	*/
9295	HRESULT SessionMachine::endTakingSnapshot(BOOL aSuccess)
9296	{
9297	LogFlowThisFuncEnter();
9298
9299	AutoCaller autoCaller(this);
9300	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9301
9302	AutoMultiWriteLock2 alock(mParent, this);
9303	// saveSettings needs VirtualBox lock
9304
9305	AssertReturn(!mSnapshotData.mSnapshot.isNull(), E_FAIL);
9306
9307	MultiResult rc(S_OK);
9308
9309	Snapshot *pOldFirstSnap = mData->mFirstSnapshot;
9310	Snapshot *pOldCurrentSnap = mData->mCurrentSnapshot;
9311
9312	bool fOnline = Global::IsOnline(mSnapshotData.mLastState);
9313
9314	if (aSuccess)
9315	{
9316	mData->mCurrentSnapshot = mSnapshotData.mSnapshot;
9317
9318	/* memorize the first snapshot if necessary */
9319	if (!mData->mFirstSnapshot)
9320	mData->mFirstSnapshot = mData->mCurrentSnapshot;
9321
9322	if (!fOnline)
9323	/* the machine was powered off or saved when taking a snapshot, so
9324	* reset the mCurrentStateModified flag */
9325	mData->mCurrentStateModified = FALSE;
9326
9327	rc = saveSettings();
9328	}
9329
9330	if (aSuccess && SUCCEEDED(rc))
9331	{
9332	/* associate old hard disks with the snapshot and do locking/unlocking*/
9333	fixupMedia(true /* aCommit */, fOnline);
9334
9335	/* inform callbacks */
9336	mParent->onSnapshotTaken(mData->mUuid,
9337	mSnapshotData.mSnapshot->getId());
9338	}
9339	else
9340	{
9341	/* delete all differencing hard disks created (this will also attach
9342	* their parents back by rolling back mHDData) */
9343	fixupMedia(false /* aCommit */);
9344
9345	mData->mFirstSnapshot = pOldFirstSnap; // might have been changed above
9346	mData->mCurrentSnapshot = pOldCurrentSnap; // might have been changed above
9347
9348	/* delete the saved state file (it might have been already created) */
9349	if (mSnapshotData.mSnapshot->stateFilePath())
9350	RTFileDelete(Utf8Str(mSnapshotData.mSnapshot->stateFilePath()).c_str());
9351
9352	mSnapshotData.mSnapshot->uninit();
9353	}
9354
9355	/* clear out the snapshot data */
9356	mSnapshotData.mLastState = MachineState_Null;
9357	mSnapshotData.mSnapshot.setNull();
9358
9359	LogFlowThisFuncLeave();
9360	return rc;
9361	}
9362
9363	/**
9364	* Helper struct for SessionMachine::discardSnapshotHandler().
9365	*/
9366	struct MediumDiscardRec
9367	{
9368	MediumDiscardRec() : chain (NULL) {}
9369
9370	MediumDiscardRec (const ComObjPtr<Medium> &aHd,
9371	Medium::MergeChain *aChain = NULL)
9372	: hd (aHd), chain (aChain) {}
9373
9374	MediumDiscardRec (const ComObjPtr<Medium> &aHd,
9375	Medium::MergeChain *aChain,
9376	const ComObjPtr<Medium> &aReplaceHd,
9377	const ComObjPtr<MediumAttachment> &aReplaceHda,
9378	const Guid &aSnapshotId)
9379	: hd (aHd), chain (aChain)
9380	, replaceHd (aReplaceHd), replaceHda (aReplaceHda)
9381	, snapshotId (aSnapshotId) {}
9382
9383	ComObjPtr<Medium> hd;
9384	Medium::MergeChain *chain;
9385	/* these are for the replace hard disk case: */
9386	ComObjPtr<Medium> replaceHd;
9387	ComObjPtr<MediumAttachment> replaceHda;
9388	Guid snapshotId;
9389	};
9390
9391	typedef std::list <MediumDiscardRec> MediumDiscardRecList;
9392
9393	/**
9394	* Discard snapshot task handler. Must be called only by
9395	* DiscardSnapshotTask::handler()!
9396	*
9397	* When aTask.subTask is true, the associated progress object is left
9398	* uncompleted on success. On failure, the progress is marked as completed
9399	* regardless of this parameter.
9400	*
9401	* @note Locks mParent + this + child objects for writing!
9402	*/
9403	void SessionMachine::discardSnapshotHandler(DiscardSnapshotTask &aTask)
9404	{
9405	LogFlowThisFuncEnter();
9406
9407	AutoCaller autoCaller(this);
9408
9409	LogFlowThisFunc(("state=%d\n", autoCaller.state()));
9410	if (!autoCaller.isOk())
9411	{
9412	/* we might have been uninitialized because the session was accidentally
9413	* closed by the client, so don't assert */
9414	aTask.progress->notifyComplete(E_FAIL,
9415	COM_IIDOF(IMachine),
9416	getComponentName(),
9417	tr("The session has been accidentally closed"));
9418	LogFlowThisFuncLeave();
9419	return;
9420	}
9421
9422	/* Locking order: */
9423	AutoMultiWriteLock3 alock(this->lockHandle(),
9424	this->snapshotsTreeLockHandle(),
9425	aTask.snapshot->lockHandle());
9426
9427	ComPtr<SnapshotMachine> sm = aTask.snapshot->getSnapshotMachine();
9428	/* no need to lock the snapshot machine since it is const by definiton */
9429
9430	HRESULT rc = S_OK;
9431
9432	/* save the snapshot ID (for callbacks) */
9433	Guid snapshotId = aTask.snapshot->getId();
9434
9435	MediumDiscardRecList toDiscard;
9436
9437	bool settingsChanged = false;
9438
9439	try
9440	{
9441	/* first pass: */
9442	LogFlowThisFunc(("1: Checking hard disk merge prerequisites...\n"));
9443
9444	for (MediaData::AttachmentList::const_iterator it = sm->mMediaData->mAttachments.begin();
9445	it != sm->mMediaData->mAttachments.end();
9446	++it)
9447	{
9448	ComObjPtr<MediumAttachment> hda = *it;
9449	ComObjPtr<Medium> hd = hda->medium();
9450
9451	// medium can be NULL only for non-hard-disk types
9452	Assert( !hd.isNull()
9453	\|\| hda->type() != DeviceType_HardDisk);
9454	if (hd.isNull())
9455	continue;
9456
9457	/* Medium::prepareDiscard() reqiuires a write lock */
9458	AutoWriteLock hdLock(hd);
9459
9460	if (hd->type() != MediumType_Normal)
9461	{
9462	/* skip writethrough hard disks */
9463	Assert(hd->type() == MediumType_Writethrough);
9464	rc = aTask.progress->SetNextOperation(BstrFmt(tr("Skipping writethrough hard disk '%s'"),
9465	hd->base()->name().raw()),
9466	1); // weight
9467	CheckComRCThrowRC(rc);
9468	continue;
9469	}
9470
9471	Medium::MergeChain *chain = NULL;
9472
9473	/* needs to be discarded (merged with the child if any), check
9474	* prerequisites */
9475	rc = hd->prepareDiscard(chain);
9476	CheckComRCThrowRC(rc);
9477
9478	if (hd->parent().isNull() && chain != NULL)
9479	{
9480	/* it's a base hard disk so it will be a backward merge of its
9481	* only child to it (prepareDiscard() does necessary checks). We
9482	* need then to update the attachment that refers to the child
9483	* to refer to the parent instead. Don't forget to detach the
9484	* child (otherwise mergeTo() called by discard() will assert
9485	* because it will be going to delete the child) */
9486
9487	/* The below assert would be nice but I don't want to move
9488	* Medium::MergeChain to the header just for that
9489	* Assert (!chain->isForward()); */
9490
9491	Assert(hd->children().size() == 1);
9492
9493	ComObjPtr<Medium> replaceHd = hd->children().front();
9494
9495	const Guid *pReplaceMachineId = replaceHd->getFirstMachineBackrefId();
9496	Assert(pReplaceMachineId && *pReplaceMachineId == mData->mUuid);
9497
9498	const Guid *pSnapshotId = replaceHd->getFirstMachineBackrefSnapshotId();
9499	Assert(pSnapshotId);
9500	Guid snapshotId = *pSnapshotId;
9501
9502	HRESULT rc2 = S_OK;
9503
9504	/* adjust back references */
9505	rc2 = replaceHd->detachFrom (mData->mUuid, snapshotId);
9506	AssertComRC(rc2);
9507
9508	rc2 = hd->attachTo (mData->mUuid, snapshotId);
9509	AssertComRC(rc2);
9510
9511	/* replace the hard disk in the attachment object */
9512	if (snapshotId.isEmpty())
9513	{
9514	/* in current state */
9515	AssertBreak(hda = findAttachment(mMediaData->mAttachments, replaceHd));
9516	}
9517	else
9518	{
9519	/* in snapshot */
9520	ComObjPtr<Snapshot> snapshot;
9521	rc2 = findSnapshot(snapshotId, snapshot);
9522	AssertComRC(rc2);
9523
9524	/* don't lock the snapshot; cannot be modified outside */
9525	MediaData::AttachmentList &snapAtts = snapshot->getSnapshotMachine()->mMediaData->mAttachments;
9526	AssertBreak(hda = findAttachment(snapAtts, replaceHd));
9527	}
9528
9529	AutoWriteLock attLock(hda);
9530	hda->updateMedium(hd, false /* aImplicit */);
9531
9532	toDiscard.push_back(MediumDiscardRec(hd,
9533	chain,
9534	replaceHd,
9535	hda,
9536	snapshotId));
9537	continue;
9538	}
9539
9540	toDiscard.push_back(MediumDiscardRec(hd, chain));
9541	}
9542
9543	/* Now we checked that we can successfully merge all normal hard disks
9544	* (unless a runtime error like end-of-disc happens). Prior to
9545	* performing the actual merge, we want to discard the snapshot itself
9546	* and remove it from the XML file to make sure that a possible merge
9547	* ruintime error will not make this snapshot inconsistent because of
9548	* the partially merged or corrupted hard disks */
9549
9550	/* second pass: */
9551	LogFlowThisFunc(("2: Discarding snapshot...\n"));
9552
9553	{
9554	ComObjPtr<Snapshot> parentSnapshot = aTask.snapshot->parent();
9555	Bstr stateFilePath = aTask.snapshot->stateFilePath();
9556
9557	/* Note that discarding the snapshot will deassociate it from the
9558	* hard disks which will allow the merge+delete operation for them*/
9559	aTask.snapshot->beginDiscard();
9560	aTask.snapshot->uninit();
9561
9562	rc = saveAllSnapshots();
9563	CheckComRCThrowRC(rc);
9564
9565	/// @todo (dmik)
9566	// if we implement some warning mechanism later, we'll have
9567	// to return a warning if the state file path cannot be deleted
9568	if (stateFilePath)
9569	{
9570	aTask.progress->SetNextOperation(Bstr(tr("Discarding the execution state")),
9571	1); // weight
9572
9573	RTFileDelete(Utf8Str(stateFilePath).c_str());
9574	}
9575
9576	/// @todo NEWMEDIA to provide a good level of fauilt tolerance, we
9577	/// should restore the shapshot in the snapshot tree if
9578	/// saveSnapshotSettings fails. Actually, we may call
9579	/// #saveSnapshotSettings() with a special flag that will tell it to
9580	/// skip the given snapshot as if it would have been discarded and
9581	/// only actually discard it if the save operation succeeds.
9582	}
9583
9584	/* here we come when we've irrevesibly discarded the snapshot which
9585	* means that the VM settigns (our relevant changes to mData) need to be
9586	* saved too */
9587	/// @todo NEWMEDIA maybe save everything in one operation in place of
9588	/// saveSnapshotSettings() above
9589	settingsChanged = true;
9590
9591	/* third pass: */
9592	LogFlowThisFunc(("3: Performing actual hard disk merging...\n"));
9593
9594	/* leave the locks before the potentially lengthy operation */
9595	alock.leave();
9596
9597	/// @todo NEWMEDIA turn the following errors into warnings because the
9598	/// snapshot itself has been already deleted (and interpret these
9599	/// warnings properly on the GUI side)
9600
9601	for (MediumDiscardRecList::iterator it = toDiscard.begin();
9602	it != toDiscard.end();)
9603	{
9604	rc = it->hd->discard (aTask.progress, it->chain);
9605	CheckComRCBreakRC(rc);
9606
9607	/* prevent from calling cancelDiscard() */
9608	it = toDiscard.erase (it);
9609	}
9610
9611	alock.enter();
9612
9613	CheckComRCThrowRC(rc);
9614	}
9615	catch (HRESULT aRC) { rc = aRC; }
9616
9617	if (FAILED(rc))
9618	{
9619	HRESULT rc2 = S_OK;
9620
9621	/* un-prepare the remaining hard disks */
9622	for (MediumDiscardRecList::const_iterator it = toDiscard.begin();
9623	it != toDiscard.end(); ++it)
9624	{
9625	it->hd->cancelDiscard (it->chain);
9626
9627	if (!it->replaceHd.isNull())
9628	{
9629	/* undo hard disk replacement */
9630
9631	rc2 = it->replaceHd->attachTo (mData->mUuid, it->snapshotId);
9632	AssertComRC(rc2);
9633
9634	rc2 = it->hd->detachFrom (mData->mUuid, it->snapshotId);
9635	AssertComRC(rc2);
9636
9637	AutoWriteLock attLock (it->replaceHda);
9638	it->replaceHda->updateMedium(it->replaceHd, false /* aImplicit */);
9639	}
9640	}
9641	}
9642
9643	if (!aTask.subTask \|\| FAILED(rc))
9644	{
9645	if (!aTask.subTask)
9646	{
9647	/* saveSettings() below needs a VirtualBox write lock and we need to
9648	* leave this object's lock to do this to follow the {parent-child}
9649	* locking rule. This is the last chance to do that while we are
9650	* still in a protective state which allows us to temporarily leave
9651	* the lock */
9652	alock.unlock();
9653	AutoWriteLock vboxLock(mParent);
9654	alock.lock();
9655
9656	/* preserve existing error info */
9657	ErrorInfoKeeper eik;
9658
9659	/* restore the machine state */
9660	setMachineState(aTask.state);
9661	updateMachineStateOnClient();
9662
9663	if (settingsChanged)
9664	saveSettings(SaveS_InformCallbacksAnyway);
9665	}
9666
9667	/* set the result (this will try to fetch current error info on failure) */
9668	aTask.progress->notifyComplete (rc);
9669	}
9670
9671	if (SUCCEEDED(rc))
9672	mParent->onSnapshotDiscarded (mData->mUuid, snapshotId);
9673
9674	LogFlowThisFunc(("Done discarding snapshot (rc=%08X)\n", rc));
9675	LogFlowThisFuncLeave();
9676	}
9677
9678	/**
9679	* Discard current state task handler. Must be called only by
9680	* DiscardCurrentStateTask::handler()!
9681	*
9682	* @note Locks mParent + this object for writing.
9683	*/
9684	void SessionMachine::discardCurrentStateHandler (DiscardCurrentStateTask &aTask)
9685	{
9686	LogFlowThisFuncEnter();
9687
9688	AutoCaller autoCaller(this);
9689
9690	LogFlowThisFunc(("state=%d\n", autoCaller.state()));
9691	if (!autoCaller.isOk())
9692	{
9693	/* we might have been uninitialized because the session was accidentally
9694	* closed by the client, so don't assert */
9695	aTask.progress->notifyComplete (
9696	E_FAIL, COM_IIDOF (IMachine), getComponentName(),
9697	tr ("The session has been accidentally closed"));
9698
9699	LogFlowThisFuncLeave();
9700	return;
9701	}
9702
9703	/* saveSettings() needs mParent lock */
9704	AutoWriteLock vboxLock (mParent);
9705
9706	/* @todo We don't need mParent lock so far so unlock() it. Better is to
9707	* provide an AutoWriteLock argument that lets create a non-locking
9708	* instance */
9709	vboxLock.unlock();
9710
9711	AutoWriteLock alock(this);
9712
9713	/* discard all current changes to mUserData (name, OSType etc.) (note that
9714	* the machine is powered off, so there is no need to inform the direct
9715	* session) */
9716	if (isModified())
9717	rollback (false /* aNotify */);
9718
9719	HRESULT rc = S_OK;
9720
9721	bool errorInSubtask = false;
9722	bool stateRestored = false;
9723
9724	const bool isLastSnapshot = mData->mCurrentSnapshot->parent().isNull();
9725
9726	try
9727	{
9728	/* discard the saved state file if the machine was Saved prior to this
9729	* operation */
9730	if (aTask.state == MachineState_Saved)
9731	{
9732	Assert (!mSSData->mStateFilePath.isEmpty());
9733	RTFileDelete(Utf8Str(mSSData->mStateFilePath).c_str());
9734	mSSData->mStateFilePath.setNull();
9735	aTask.modifyLastState (MachineState_PoweredOff);
9736	rc = saveStateSettings (SaveSTS_StateFilePath);
9737	CheckComRCThrowRC(rc);
9738	}
9739
9740	if (aTask.discardCurrentSnapshot && !isLastSnapshot)
9741	{
9742	/* the "discard current snapshot and state" task is in action, the
9743	* current snapshot is not the last one. Discard the current
9744	* snapshot first */
9745
9746	DiscardSnapshotTask subTask (aTask, mData->mCurrentSnapshot);
9747	subTask.subTask = true;
9748	discardSnapshotHandler (subTask);
9749
9750	AutoCaller progressCaller (aTask.progress);
9751	AutoReadLock progressLock (aTask.progress);
9752	if (aTask.progress->completed())
9753	{
9754	/* the progress can be completed by a subtask only if there was
9755	* a failure */
9756	rc = aTask.progress->resultCode();
9757	Assert (FAILED(rc));
9758	errorInSubtask = true;
9759	throw rc;
9760	}
9761	}
9762
9763	RTTIMESPEC snapshotTimeStamp;
9764	RTTimeSpecSetMilli (&snapshotTimeStamp, 0);
9765
9766	{
9767	ComObjPtr<Snapshot> curSnapshot = mData->mCurrentSnapshot;
9768	AutoReadLock snapshotLock (curSnapshot);
9769
9770	/* remember the timestamp of the snapshot we're restoring from */
9771	snapshotTimeStamp = curSnapshot->getTimeStamp();
9772
9773	ComPtr<SnapshotMachine> pSnapshotMachine(curSnapshot->getSnapshotMachine());
9774
9775	/* copy all hardware data from the current snapshot */
9776	copyFrom(pSnapshotMachine);
9777
9778	LogFlowThisFunc(("Restoring hard disks from the snapshot...\n"));
9779
9780	/* restore the attachmends from the snapshot */
9781	mMediaData.backup();
9782	mMediaData->mAttachments = pSnapshotMachine->mMediaData->mAttachments;
9783
9784	/* leave the locks before the potentially lengthy operation */
9785	snapshotLock.unlock();
9786	alock.leave();
9787
9788	rc = createImplicitDiffs(mUserData->mSnapshotFolderFull,
9789	aTask.progress,
9790	1,
9791	false /* aOnline */);
9792
9793	alock.enter();
9794	snapshotLock.lock();
9795
9796	CheckComRCThrowRC(rc);
9797
9798	/* Note: on success, current (old) hard disks will be
9799	* deassociated/deleted on #commit() called from #saveSettings() at
9800	* the end. On failure, newly created implicit diffs will be
9801	* deleted by #rollback() at the end. */
9802
9803	/* should not have a saved state file associated at this point */
9804	Assert (mSSData->mStateFilePath.isNull());
9805
9806	if (curSnapshot->stateFilePath())
9807	{
9808	Utf8Str snapStateFilePath = curSnapshot->stateFilePath();
9809
9810	Utf8Str stateFilePath = Utf8StrFmt ("%ls%c{%RTuuid}.sav",
9811	mUserData->mSnapshotFolderFull.raw(),
9812	RTPATH_DELIMITER, mData->mUuid.raw());
9813
9814	LogFlowThisFunc(("Copying saved state file from '%s' to '%s'...\n",
9815	snapStateFilePath.raw(), stateFilePath.raw()));
9816
9817	aTask.progress->SetNextOperation(Bstr(tr("Restoring the execution state")),
9818	1); // weight
9819
9820	/* leave the lock before the potentially lengthy operation */
9821	snapshotLock.unlock();
9822	alock.leave();
9823
9824	/* copy the state file */
9825	int vrc = RTFileCopyEx(snapStateFilePath.c_str(),
9826	stateFilePath.c_str(),
9827	0,
9828	progressCallback,
9829	aTask.progress);
9830
9831	alock.enter();
9832	snapshotLock.lock();
9833
9834	if (RT_SUCCESS(vrc))
9835	{
9836	mSSData->mStateFilePath = stateFilePath;
9837	}
9838	else
9839	{
9840	throw setError(E_FAIL,
9841	tr("Could not copy the state file '%s' to '%s' (%Rrc)"),
9842	snapStateFilePath.raw(),
9843	stateFilePath.raw(),
9844	vrc);
9845	}
9846	}
9847	}
9848
9849	/* grab differencing hard disks from the old attachments that will
9850	* become unused and need to be auto-deleted */
9851
9852	std::list< ComObjPtr<Medium> > diffs;
9853
9854	for (MediaData::AttachmentList::const_iterator it = mMediaData.backedUpData()->mAttachments.begin();
9855	it != mMediaData.backedUpData()->mAttachments.end();
9856	++it)
9857	{
9858	ComObjPtr<Medium> hd = (*it)->medium();
9859
9860	/* while the hard disk is attached, the number of children or the
9861	* parent cannot change, so no lock */
9862	if (!hd.isNull() && !hd->parent().isNull() && hd->children().size() == 0)
9863	diffs.push_back (hd);
9864	}
9865
9866	int saveFlags = 0;
9867
9868	if (aTask.discardCurrentSnapshot && isLastSnapshot)
9869	{
9870	/* commit changes to have unused diffs deassociated from this
9871	* machine before deletion (see below) */
9872	commit();
9873
9874	/* delete the unused diffs now (and uninit them) because discard
9875	* may fail otherwise (too many children of the hard disk to be
9876	* discarded) */
9877	for (std::list< ComObjPtr<Medium> >::const_iterator
9878	it = diffs.begin(); it != diffs.end(); ++it)
9879	{
9880	/// @todo for now, we ignore errors since we've already
9881	/// and therefore cannot fail. Later, we may want to report a
9882	/// warning through the Progress object
9883	HRESULT rc2 = (*it)->deleteStorageAndWait();
9884	if (SUCCEEDED(rc2))
9885	(*it)->uninit();
9886	}
9887
9888	/* prevent further deletion */
9889	diffs.clear();
9890
9891	/* discard the current snapshot and state task is in action, the
9892	* current snapshot is the last one. Discard the current snapshot
9893	* after discarding the current state. */
9894
9895	DiscardSnapshotTask subTask (aTask, mData->mCurrentSnapshot);
9896	subTask.subTask = true;
9897	discardSnapshotHandler (subTask);
9898
9899	AutoCaller progressCaller (aTask.progress);
9900	AutoReadLock progressLock (aTask.progress);
9901	if (aTask.progress->completed())
9902	{
9903	/* the progress can be completed by a subtask only if there
9904	* was a failure */
9905	rc = aTask.progress->resultCode();
9906	Assert (FAILED(rc));
9907	errorInSubtask = true;
9908	}
9909
9910	/* we've committed already, so inform callbacks anyway to ensure
9911	* they don't miss some change */
9912	/// @todo NEWMEDIA check if we need this informCallbacks at all
9913	/// after updating discardCurrentSnapshot functionality
9914	saveFlags \|= SaveS_InformCallbacksAnyway;
9915	}
9916
9917	/* @todo saveSettings() below needs a VirtualBox write lock and we need
9918	* to leave this object's lock to do this to follow the {parent-child}
9919	* locking rule. This is the last chance to do that while we are still
9920	* in a protective state which allows us to temporarily leave the lock*/
9921	alock.unlock();
9922	vboxLock.lock();
9923	alock.lock();
9924
9925	/* we have already discarded the current state, so set the execution
9926	* state accordingly no matter of the discard snapshot result */
9927	if (mSSData->mStateFilePath)
9928	setMachineState (MachineState_Saved);
9929	else
9930	setMachineState (MachineState_PoweredOff);
9931
9932	updateMachineStateOnClient();
9933	stateRestored = true;
9934
9935	/* assign the timestamp from the snapshot */
9936	Assert (RTTimeSpecGetMilli (&snapshotTimeStamp) != 0);
9937	mData->mLastStateChange = snapshotTimeStamp;
9938
9939	/* save all settings, reset the modified flag and commit. Note that we
9940	* do so even if the subtask failed (errorInSubtask=true) because we've
9941	* already committed machine data and deleted old diffs before
9942	* discarding the current snapshot so there is no way to rollback */
9943	HRESULT rc2 = saveSettings(SaveS_ResetCurStateModified \| saveFlags);
9944
9945	/// @todo NEWMEDIA return multiple errors
9946	if (errorInSubtask)
9947	throw rc;
9948
9949	rc = rc2;
9950
9951	if (SUCCEEDED(rc))
9952	{
9953	/* now, delete the unused diffs (only on success!) and uninit them*/
9954	for (std::list< ComObjPtr<Medium> >::const_iterator
9955	it = diffs.begin(); it != diffs.end(); ++it)
9956	{
9957	/// @todo for now, we ignore errors since we've already
9958	/// discarded and therefore cannot fail. Later, we may want to
9959	/// report a warning through the Progress object
9960	HRESULT rc2 = (*it)->deleteStorageAndWait();
9961	if (SUCCEEDED(rc2))
9962	(*it)->uninit();
9963	}
9964	}
9965	}
9966	catch (HRESULT aRC) { rc = aRC; }
9967
9968	if (FAILED (rc))
9969	{
9970	/* preserve existing error info */
9971	ErrorInfoKeeper eik;
9972
9973	if (!errorInSubtask)
9974	{
9975	/* undo all changes on failure unless the subtask has done so */
9976	rollback (false /* aNotify */);
9977	}
9978
9979	if (!stateRestored)
9980	{
9981	/* restore the machine state */
9982	setMachineState (aTask.state);
9983	updateMachineStateOnClient();
9984	}
9985	}
9986
9987	if (!errorInSubtask)
9988	{
9989	/* set the result (this will try to fetch current error info on failure) */
9990	aTask.progress->notifyComplete (rc);
9991	}
9992
9993	if (SUCCEEDED(rc))
9994	mParent->onSnapshotDiscarded (mData->mUuid, Guid());
9995
9996	LogFlowThisFunc(("Done discarding current state (rc=%08X)\n", rc));
9997
9998	LogFlowThisFuncLeave();
9999	}
10000
10001	/**
10002	* Locks the attached media.
10003	*
10004	* All attached hard disks are locked for writing and DVD/floppy are locked for
10005	* reading. Parents of attached hard disks (if any) are locked for reading.
10006	*
10007	* This method also performs accessibility check of all media it locks: if some
10008	* media is inaccessible, the method will return a failure and a bunch of
10009	* extended error info objects per each inaccessible medium.
10010	*
10011	* Note that this method is atomic: if it returns a success, all media are
10012	* locked as described above; on failure no media is locked at all (all
10013	* succeeded individual locks will be undone).
10014	*
10015	* This method is intended to be called when the machine is in Starting or
10016	* Restoring state and asserts otherwise.
10017	*
10018	* The locks made by this method must be undone by calling #unlockMedia() when
10019	* no more needed.
10020	*/
10021	HRESULT SessionMachine::lockMedia()
10022	{
10023	AutoCaller autoCaller(this);
10024	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
10025
10026	AutoWriteLock alock(this);
10027
10028	AssertReturn(mData->mMachineState == MachineState_Starting \|\|
10029	mData->mMachineState == MachineState_Restoring, E_FAIL);
10030
10031	typedef std::list <ComPtr<IMedium> > MediaList;
10032	MediaList mediaToCheck;
10033	MediumState_T mediaState;
10034
10035	try
10036	{
10037	HRESULT rc = S_OK;
10038
10039	/* lock hard disks */
10040	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
10041	it != mMediaData->mAttachments.end();
10042	++it)
10043	{
10044	ComObjPtr<Medium> hd = (*it)->medium();
10045
10046	bool first = true;
10047
10048	/** @todo split out the media locking, and put it into
10049	* MediumImpl.cpp, as it needs this functionality too. */
10050	while (!hd.isNull())
10051	{
10052	if (first)
10053	{
10054	rc = hd->LockWrite (&mediaState);
10055	CheckComRCThrowRC(rc);
10056
10057	mData->mSession.mLockedMedia.push_back (
10058	Data::Session::LockedMedia::value_type (
10059	ComPtr<IMedium> (hd), true));
10060
10061	first = false;
10062	}
10063	else
10064	{
10065	rc = hd->LockRead (&mediaState);
10066	CheckComRCThrowRC(rc);
10067
10068	mData->mSession.mLockedMedia.push_back (
10069	Data::Session::LockedMedia::value_type (
10070	ComPtr<IMedium> (hd), false));
10071	}
10072
10073	if (mediaState == MediumState_Inaccessible)
10074	mediaToCheck.push_back (ComPtr<IMedium> (hd));
10075
10076	/* no locks or callers here since there should be no way to
10077	* change the hard disk parent at this point (as it is still
10078	* attached to the machine) */
10079	hd = hd->parent();
10080	}
10081	}
10082
10083	/* SUCCEEDED locking all media, now check accessibility */
10084
10085	ErrorInfoKeeper eik (true /* aIsNull */);
10086	MultiResult mrc (S_OK);
10087
10088	/* perform a check of inaccessible media deferred above */
10089	for (MediaList::const_iterator
10090	it = mediaToCheck.begin();
10091	it != mediaToCheck.end(); ++it)
10092	{
10093	MediumState_T mediaState;
10094	rc = (*it)->COMGETTER(State) (&mediaState);
10095	CheckComRCThrowRC(rc);
10096
10097	Assert (mediaState == MediumState_LockedRead \|\|
10098	mediaState == MediumState_LockedWrite);
10099
10100	/* Note that we locked the medium already, so use the error
10101	* value to see if there was an accessibility failure */
10102
10103	Bstr error;
10104	rc = (*it)->COMGETTER(LastAccessError) (error.asOutParam());
10105	CheckComRCThrowRC(rc);
10106
10107	if (!error.isEmpty())
10108	{
10109	Bstr loc;
10110	rc = (*it)->COMGETTER(Location) (loc.asOutParam());
10111	CheckComRCThrowRC(rc);
10112
10113	/* collect multiple errors */
10114	eik.restore();
10115
10116	/* be in sync with MediumBase::setStateError() */
10117	Assert (!error.isEmpty());
10118	mrc = setError(E_FAIL,
10119	tr("Medium '%ls' is not accessible. %ls"),
10120	loc.raw(),
10121	error.raw());
10122
10123	eik.fetch();
10124	}
10125	}
10126
10127	eik.restore();
10128	CheckComRCThrowRC((HRESULT) mrc);
10129	}
10130	catch (HRESULT aRC)
10131	{
10132	/* Unlock all locked media on failure */
10133	unlockMedia();
10134	return aRC;
10135	}
10136
10137	return S_OK;
10138	}
10139
10140	/**
10141	* Undoes the locks made by by #lockMedia().
10142	*/
10143	void SessionMachine::unlockMedia()
10144	{
10145	AutoCaller autoCaller(this);
10146	AssertComRCReturnVoid (autoCaller.rc());
10147
10148	AutoWriteLock alock(this);
10149
10150	/* we may be holding important error info on the current thread;
10151	* preserve it */
10152	ErrorInfoKeeper eik;
10153
10154	HRESULT rc = S_OK;
10155
10156	for (Data::Session::LockedMedia::const_iterator
10157	it = mData->mSession.mLockedMedia.begin();
10158	it != mData->mSession.mLockedMedia.end(); ++it)
10159	{
10160	MediumState_T state;
10161	if (it->second)
10162	rc = it->first->UnlockWrite (&state);
10163	else
10164	rc = it->first->UnlockRead (&state);
10165
10166	/* The second can happen if an object was re-locked in
10167	* Machine::fixupMedia(). The last can happen when e.g a DVD/Floppy
10168	* image was unmounted at runtime. */
10169	Assert (SUCCEEDED(rc) \|\| state == MediumState_LockedRead \|\| state == MediumState_Created);
10170	}
10171
10172	mData->mSession.mLockedMedia.clear();
10173	}
10174
10175	/**
10176	* Helper to change the machine state (reimplementation).
10177	*
10178	* @note Locks this object for writing.
10179	*/
10180	HRESULT SessionMachine::setMachineState (MachineState_T aMachineState)
10181	{
10182	LogFlowThisFuncEnter();
10183	LogFlowThisFunc(("aMachineState=%d\n", aMachineState));
10184
10185	AutoCaller autoCaller(this);
10186	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
10187
10188	AutoWriteLock alock(this);
10189
10190	MachineState_T oldMachineState = mData->mMachineState;
10191
10192	AssertMsgReturn (oldMachineState != aMachineState,
10193	("oldMachineState=%d, aMachineState=%d\n",
10194	oldMachineState, aMachineState), E_FAIL);
10195
10196	HRESULT rc = S_OK;
10197
10198	int stsFlags = 0;
10199	bool deleteSavedState = false;
10200
10201	/* detect some state transitions */
10202
10203	if ((oldMachineState == MachineState_Saved &&
10204	aMachineState == MachineState_Restoring) \|\|
10205	(oldMachineState < MachineState_Running /* any other OFF state */ &&
10206	aMachineState == MachineState_Starting))
10207	{
10208	/* The EMT thread is about to start */
10209
10210	/* Nothing to do here for now... */
10211
10212	/// @todo NEWMEDIA don't let mDVDDrive and other children
10213	/// change anything when in the Starting/Restoring state
10214	}
10215	else
10216	if (oldMachineState >= MachineState_Running &&
10217	oldMachineState != MachineState_Discarding &&
10218	oldMachineState != MachineState_SettingUp &&
10219	aMachineState < MachineState_Running &&
10220	/* ignore PoweredOff->Saving->PoweredOff transition when taking a
10221	* snapshot */
10222	(mSnapshotData.mSnapshot.isNull() \|\|
10223	mSnapshotData.mLastState >= MachineState_Running))
10224	{
10225	/* The EMT thread has just stopped, unlock attached media. Note that as
10226	* opposed to locking that is done from Console, we do unlocking here
10227	* because the VM process may have aborted before having a chance to
10228	* properly unlock all media it locked. */
10229
10230	unlockMedia();
10231	}
10232
10233	if (oldMachineState == MachineState_Restoring)
10234	{
10235	if (aMachineState != MachineState_Saved)
10236	{
10237	/*
10238	* delete the saved state file once the machine has finished
10239	* restoring from it (note that Console sets the state from
10240	* Restoring to Saved if the VM couldn't restore successfully,
10241	* to give the user an ability to fix an error and retry --
10242	* we keep the saved state file in this case)
10243	*/
10244	deleteSavedState = true;
10245	}
10246	}
10247	else
10248	if (oldMachineState == MachineState_Saved &&
10249	(aMachineState == MachineState_PoweredOff \|\|
10250	aMachineState == MachineState_Aborted))
10251	{
10252	/*
10253	* delete the saved state after Console::DiscardSavedState() is called
10254	* or if the VM process (owning a direct VM session) crashed while the
10255	* VM was Saved
10256	*/
10257
10258	/// @todo (dmik)
10259	// Not sure that deleting the saved state file just because of the
10260	// client death before it attempted to restore the VM is a good
10261	// thing. But when it crashes we need to go to the Aborted state
10262	// which cannot have the saved state file associated... The only
10263	// way to fix this is to make the Aborted condition not a VM state
10264	// but a bool flag: i.e., when a crash occurs, set it to true and
10265	// change the state to PoweredOff or Saved depending on the
10266	// saved state presence.
10267
10268	deleteSavedState = true;
10269	mData->mCurrentStateModified = TRUE;
10270	stsFlags \|= SaveSTS_CurStateModified;
10271	}
10272
10273	if (aMachineState == MachineState_Starting \|\|
10274	aMachineState == MachineState_Restoring)
10275	{
10276	/* set the current state modified flag to indicate that the current
10277	* state is no more identical to the state in the
10278	* current snapshot */
10279	if (!mData->mCurrentSnapshot.isNull())
10280	{
10281	mData->mCurrentStateModified = TRUE;
10282	stsFlags \|= SaveSTS_CurStateModified;
10283	}
10284	}
10285
10286	if (deleteSavedState)
10287	{
10288	if (mRemoveSavedState)
10289	{
10290	Assert (!mSSData->mStateFilePath.isEmpty());
10291	RTFileDelete(Utf8Str(mSSData->mStateFilePath).c_str());
10292	}
10293	mSSData->mStateFilePath.setNull();
10294	stsFlags \|= SaveSTS_StateFilePath;
10295	}
10296
10297	/* redirect to the underlying peer machine */
10298	mPeer->setMachineState (aMachineState);
10299
10300	if (aMachineState == MachineState_PoweredOff \|\|
10301	aMachineState == MachineState_Aborted \|\|
10302	aMachineState == MachineState_Saved)
10303	{
10304	/* the machine has stopped execution
10305	* (or the saved state file was adopted) */
10306	stsFlags \|= SaveSTS_StateTimeStamp;
10307	}
10308
10309	if ((oldMachineState == MachineState_PoweredOff \|\|
10310	oldMachineState == MachineState_Aborted) &&
10311	aMachineState == MachineState_Saved)
10312	{
10313	/* the saved state file was adopted */
10314	Assert (!mSSData->mStateFilePath.isNull());
10315	stsFlags \|= SaveSTS_StateFilePath;
10316	}
10317
10318	rc = saveStateSettings (stsFlags);
10319
10320	if ((oldMachineState != MachineState_PoweredOff &&
10321	oldMachineState != MachineState_Aborted) &&
10322	(aMachineState == MachineState_PoweredOff \|\|
10323	aMachineState == MachineState_Aborted))
10324	{
10325	/* we've been shut down for any reason */
10326	/* no special action so far */
10327	}
10328
10329	LogFlowThisFunc(("rc=%08X\n", rc));
10330	LogFlowThisFuncLeave();
10331	return rc;
10332	}
10333
10334	/**
10335	* Sends the current machine state value to the VM process.
10336	*
10337	* @note Locks this object for reading, then calls a client process.
10338	*/
10339	HRESULT SessionMachine::updateMachineStateOnClient()
10340	{
10341	AutoCaller autoCaller(this);
10342	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
10343
10344	ComPtr<IInternalSessionControl> directControl;
10345	{
10346	AutoReadLock alock(this);
10347	AssertReturn(!!mData, E_FAIL);
10348	directControl = mData->mSession.mDirectControl;
10349
10350	/* directControl may be already set to NULL here in #OnSessionEnd()
10351	* called too early by the direct session process while there is still
10352	* some operation (like discarding the snapshot) in progress. The client
10353	* process in this case is waiting inside Session::close() for the
10354	* "end session" process object to complete, while #uninit() called by
10355	* #checkForDeath() on the Watcher thread is waiting for the pending
10356	* operation to complete. For now, we accept this inconsitent behavior
10357	* and simply do nothing here. */
10358
10359	if (mData->mSession.mState == SessionState_Closing)
10360	return S_OK;
10361
10362	AssertReturn(!directControl.isNull(), E_FAIL);
10363	}
10364
10365	return directControl->UpdateMachineState (mData->mMachineState);
10366	}
10367
10368	/* static */
10369	DECLCALLBACK(int) SessionMachine::taskHandler (RTTHREAD /* thread /, void pvUser)
10370	{
10371	AssertReturn(pvUser, VERR_INVALID_POINTER);
10372
10373	Task task = static_cast <Task > (pvUser);
10374	task->handler();
10375
10376	// it's our responsibility to delete the task
10377	delete task;
10378
10379	return 0;
10380	}
10381
10382	/////////////////////////////////////////////////////////////////////////////
10383	// SnapshotMachine class
10384	/////////////////////////////////////////////////////////////////////////////
10385
10386	DEFINE_EMPTY_CTOR_DTOR (SnapshotMachine)
10387
10388	HRESULT SnapshotMachine::FinalConstruct()
10389	{
10390	LogFlowThisFunc(("\n"));
10391
10392	/* set the proper type to indicate we're the SnapshotMachine instance */
10393	unconst(mType) = IsSnapshotMachine;
10394
10395	return S_OK;
10396	}
10397
10398	void SnapshotMachine::FinalRelease()
10399	{
10400	LogFlowThisFunc(("\n"));
10401
10402	uninit();
10403	}
10404
10405	/**
10406	* Initializes the SnapshotMachine object when taking a snapshot.
10407	*
10408	* @param aSessionMachine machine to take a snapshot from
10409	* @param aSnapshotId snapshot ID of this snapshot machine
10410	* @param aStateFilePath file where the execution state will be later saved
10411	* (or NULL for the offline snapshot)
10412	*
10413	* @note The aSessionMachine must be locked for writing.
10414	*/
10415	HRESULT SnapshotMachine::init(SessionMachine *aSessionMachine,
10416	IN_GUID aSnapshotId,
10417	const Utf8Str &aStateFilePath)
10418	{
10419	LogFlowThisFuncEnter();
10420	LogFlowThisFunc(("mName={%ls}\n", aSessionMachine->mUserData->mName.raw()));
10421
10422	AssertReturn(aSessionMachine && !Guid (aSnapshotId).isEmpty(), E_INVALIDARG);
10423
10424	/* Enclose the state transition NotReady->InInit->Ready */
10425	AutoInitSpan autoInitSpan(this);
10426	AssertReturn(autoInitSpan.isOk(), E_FAIL);
10427
10428	AssertReturn(aSessionMachine->isWriteLockOnCurrentThread(), E_FAIL);
10429
10430	mSnapshotId = aSnapshotId;
10431
10432	/* memorize the primary Machine instance (i.e. not SessionMachine!) */
10433	unconst(mPeer) = aSessionMachine->mPeer;
10434	/* share the parent pointer */
10435	unconst(mParent) = mPeer->mParent;
10436
10437	/* take the pointer to Data to share */
10438	mData.share (mPeer->mData);
10439
10440	/* take the pointer to UserData to share (our UserData must always be the
10441	* same as Machine's data) */
10442	mUserData.share (mPeer->mUserData);
10443	/* make a private copy of all other data (recent changes from SessionMachine) */
10444	mHWData.attachCopy (aSessionMachine->mHWData);
10445	mMediaData.attachCopy(aSessionMachine->mMediaData);
10446
10447	/* SSData is always unique for SnapshotMachine */
10448	mSSData.allocate();
10449	mSSData->mStateFilePath = aStateFilePath;
10450
10451	HRESULT rc = S_OK;
10452
10453	/* create copies of all shared folders (mHWData after attiching a copy
10454	* contains just references to original objects) */
10455	for (HWData::SharedFolderList::iterator
10456	it = mHWData->mSharedFolders.begin();
10457	it != mHWData->mSharedFolders.end();
10458	++it)
10459	{
10460	ComObjPtr<SharedFolder> folder;
10461	folder.createObject();
10462	rc = folder->initCopy (this, *it);
10463	CheckComRCReturnRC(rc);
10464	*it = folder;
10465	}
10466
10467	/* associate hard disks with the snapshot
10468	* (Machine::uninitDataAndChildObjects() will deassociate at destruction) */
10469	for (MediaData::AttachmentList::const_iterator it = mMediaData->mAttachments.begin();
10470	it != mMediaData->mAttachments.end();
10471	++it)
10472	{
10473	MediumAttachment pAtt = it;
10474	Medium *pMedium = pAtt->medium();
10475	if (pMedium) // can be NULL for non-harddisk
10476	{
10477	rc = pMedium->attachTo(mData->mUuid, mSnapshotId);
10478	AssertComRC(rc);
10479	}
10480	}
10481
10482	/* create copies of all storage controllers (mStorageControllerData
10483	* after attaching a copy contains just references to original objects) */
10484	mStorageControllers.allocate();
10485	for (StorageControllerList::const_iterator
10486	it = aSessionMachine->mStorageControllers->begin();
10487	it != aSessionMachine->mStorageControllers->end();
10488	++it)
10489	{
10490	ComObjPtr<StorageController> ctrl;
10491	ctrl.createObject();
10492	ctrl->initCopy (this, *it);
10493	mStorageControllers->push_back(ctrl);
10494	}
10495
10496	/* create all other child objects that will be immutable private copies */
10497
10498	unconst(mBIOSSettings).createObject();
10499	mBIOSSettings->initCopy (this, mPeer->mBIOSSettings);
10500
10501	#ifdef VBOX_WITH_VRDP
10502	unconst(mVRDPServer).createObject();
10503	mVRDPServer->initCopy (this, mPeer->mVRDPServer);
10504	#endif
10505
10506	unconst(mAudioAdapter).createObject();
10507	mAudioAdapter->initCopy (this, mPeer->mAudioAdapter);
10508
10509	unconst(mUSBController).createObject();
10510	mUSBController->initCopy (this, mPeer->mUSBController);
10511
10512	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
10513	{
10514	unconst(mNetworkAdapters [slot]).createObject();
10515	mNetworkAdapters [slot]->initCopy (this, mPeer->mNetworkAdapters [slot]);
10516	}
10517
10518	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
10519	{
10520	unconst(mSerialPorts [slot]).createObject();
10521	mSerialPorts [slot]->initCopy (this, mPeer->mSerialPorts [slot]);
10522	}
10523
10524	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
10525	{
10526	unconst(mParallelPorts [slot]).createObject();
10527	mParallelPorts [slot]->initCopy (this, mPeer->mParallelPorts [slot]);
10528	}
10529
10530	/* Confirm a successful initialization when it's the case */
10531	autoInitSpan.setSucceeded();
10532
10533	LogFlowThisFuncLeave();
10534	return S_OK;
10535	}
10536
10537	/**
10538	* Initializes the SnapshotMachine object when loading from the settings file.
10539	*
10540	* @param aMachine machine the snapshot belngs to
10541	* @param aHWNode <Hardware> node
10542	* @param aHDAsNode <HardDiskAttachments> node
10543	* @param aSnapshotId snapshot ID of this snapshot machine
10544	* @param aStateFilePath file where the execution state is saved
10545	* (or NULL for the offline snapshot)
10546	*
10547	* @note Doesn't lock anything.
10548	*/
10549	HRESULT SnapshotMachine::init(Machine *aMachine,
10550	const settings::Hardware &hardware,
10551	const settings::Storage &storage,
10552	IN_GUID aSnapshotId,
10553	const Utf8Str &aStateFilePath)
10554	{
10555	LogFlowThisFuncEnter();
10556	LogFlowThisFunc(("mName={%ls}\n", aMachine->mUserData->mName.raw()));
10557
10558	AssertReturn(aMachine && !Guid(aSnapshotId).isEmpty(), E_INVALIDARG);
10559
10560	/* Enclose the state transition NotReady->InInit->Ready */
10561	AutoInitSpan autoInitSpan(this);
10562	AssertReturn(autoInitSpan.isOk(), E_FAIL);
10563
10564	/* Don't need to lock aMachine when VirtualBox is starting up */
10565
10566	mSnapshotId = aSnapshotId;
10567
10568	/* memorize the primary Machine instance */
10569	unconst(mPeer) = aMachine;
10570	/* share the parent pointer */
10571	unconst(mParent) = mPeer->mParent;
10572
10573	/* take the pointer to Data to share */
10574	mData.share (mPeer->mData);
10575	/*
10576	* take the pointer to UserData to share
10577	* (our UserData must always be the same as Machine's data)
10578	*/
10579	mUserData.share (mPeer->mUserData);
10580	/* allocate private copies of all other data (will be loaded from settings) */
10581	mHWData.allocate();
10582	mMediaData.allocate();
10583	mStorageControllers.allocate();
10584
10585	/* SSData is always unique for SnapshotMachine */
10586	mSSData.allocate();
10587	mSSData->mStateFilePath = aStateFilePath;
10588
10589	/* create all other child objects that will be immutable private copies */
10590
10591	unconst(mBIOSSettings).createObject();
10592	mBIOSSettings->init (this);
10593
10594	#ifdef VBOX_WITH_VRDP
10595	unconst(mVRDPServer).createObject();
10596	mVRDPServer->init (this);
10597	#endif
10598
10599	unconst(mAudioAdapter).createObject();
10600	mAudioAdapter->init (this);
10601
10602	unconst(mUSBController).createObject();
10603	mUSBController->init (this);
10604
10605	for (ULONG slot = 0; slot < RT_ELEMENTS (mNetworkAdapters); slot ++)
10606	{
10607	unconst(mNetworkAdapters [slot]).createObject();
10608	mNetworkAdapters [slot]->init (this, slot);
10609	}
10610
10611	for (ULONG slot = 0; slot < RT_ELEMENTS (mSerialPorts); slot ++)
10612	{
10613	unconst(mSerialPorts [slot]).createObject();
10614	mSerialPorts [slot]->init (this, slot);
10615	}
10616
10617	for (ULONG slot = 0; slot < RT_ELEMENTS (mParallelPorts); slot ++)
10618	{
10619	unconst(mParallelPorts [slot]).createObject();
10620	mParallelPorts [slot]->init (this, slot);
10621	}
10622
10623	/* load hardware and harddisk settings */
10624
10625	HRESULT rc = loadHardware(hardware);
10626	if (SUCCEEDED(rc))
10627	rc = loadStorageControllers(storage, true /* aRegistered */, &mSnapshotId);
10628
10629	if (SUCCEEDED(rc))
10630	/* commit all changes made during the initialization */
10631	commit();
10632
10633	/* Confirm a successful initialization when it's the case */
10634	if (SUCCEEDED(rc))
10635	autoInitSpan.setSucceeded();
10636
10637	LogFlowThisFuncLeave();
10638	return rc;
10639	}
10640
10641	/**
10642	* Uninitializes this SnapshotMachine object.
10643	*/
10644	void SnapshotMachine::uninit()
10645	{
10646	LogFlowThisFuncEnter();
10647
10648	/* Enclose the state transition Ready->InUninit->NotReady */
10649	AutoUninitSpan autoUninitSpan(this);
10650	if (autoUninitSpan.uninitDone())
10651	return;
10652
10653	uninitDataAndChildObjects();
10654
10655	/* free the essential data structure last */
10656	mData.free();
10657
10658	unconst(mParent).setNull();
10659	unconst(mPeer).setNull();
10660
10661	LogFlowThisFuncLeave();
10662	}
10663
10664	// util::Lockable interface
10665	////////////////////////////////////////////////////////////////////////////////
10666
10667	/**
10668	* Overrides VirtualBoxBase::lockHandle() in order to share the lock handle
10669	* with the primary Machine instance (mPeer).
10670	*/
10671	RWLockHandle *SnapshotMachine::lockHandle() const
10672	{
10673	AssertReturn(!mPeer.isNull(), NULL);
10674	return mPeer->lockHandle();
10675	}
10676
10677	// public methods only for internal purposes
10678	////////////////////////////////////////////////////////////////////////////////
10679
10680	/**
10681	* Called by the snapshot object associated with this SnapshotMachine when
10682	* snapshot data such as name or description is changed.
10683	*
10684	* @note Locks this object for writing.
10685	*/
10686	HRESULT SnapshotMachine::onSnapshotChange (Snapshot *aSnapshot)
10687	{
10688	AutoWriteLock alock(this);
10689
10690	// mPeer->saveAllSnapshots(); @todo
10691
10692	/* inform callbacks */
10693	mParent->onSnapshotChange(mData->mUuid, aSnapshot->getId());
10694
10695	return S_OK;
10696	}
10697	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/MachineImpl.cpp@ 23395

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