GuestFileImpl.cpp@ 71299

Last change on this file since 71299 was 71299, checked in by vboxsync, 7 years ago
Guest Control: Renaming (guestRc -> rcGuest).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 38.3 KB

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1	/* $Id: GuestFileImpl.cpp 71299 2018-03-12 11:30:08Z vboxsync $ */
2	/** @file
3	* VirtualBox Main - Guest file handling.
4	*/
5
6	/*
7	* Copyright (C) 2012-2018 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_MAIN_GUESTFILE
23	#include "LoggingNew.h"
24
25	#ifndef VBOX_WITH_GUEST_CONTROL
26	# error "VBOX_WITH_GUEST_CONTROL must defined in this file"
27	#endif
28	#include "GuestFileImpl.h"
29	#include "GuestSessionImpl.h"
30	#include "GuestCtrlImplPrivate.h"
31	#include "ConsoleImpl.h"
32	#include "VirtualBoxErrorInfoImpl.h"
33
34	#include "Global.h"
35	#include "AutoCaller.h"
36	#include "VBoxEvents.h"
37
38	#include <iprt/cpp/utils.h> /* For unconst(). */
39	#include <iprt/file.h>
40
41	#include <VBox/com/array.h>
42	#include <VBox/com/listeners.h>
43
44
45	/**
46	* Internal listener class to serve events in an
47	* active manner, e.g. without polling delays.
48	*/
49	class GuestFileListener
50	{
51	public:
52
53	GuestFileListener(void)
54	{
55	}
56
57	virtual ~GuestFileListener()
58	{
59	}
60
61	HRESULT init(GuestFile *pFile)
62	{
63	AssertPtrReturn(pFile, E_POINTER);
64	mFile = pFile;
65	return S_OK;
66	}
67
68	void uninit(void)
69	{
70	mFile = NULL;
71	}
72
73	STDMETHOD(HandleEvent)(VBoxEventType_T aType, IEvent *aEvent)
74	{
75	switch (aType)
76	{
77	case VBoxEventType_OnGuestFileStateChanged:
78	case VBoxEventType_OnGuestFileOffsetChanged:
79	case VBoxEventType_OnGuestFileRead:
80	case VBoxEventType_OnGuestFileWrite:
81	{
82	AssertPtrReturn(mFile, E_POINTER);
83	int rc2 = mFile->signalWaitEvent(aType, aEvent);
84	NOREF(rc2);
85	#ifdef DEBUG_andy
86	LogFlowFunc(("Signalling events of type=%RU32, file=%p resulted in rc=%Rrc\n",
87	aType, mFile, rc2));
88	#endif
89	break;
90	}
91
92	default:
93	AssertMsgFailed(("Unhandled event %RU32\n", aType));
94	break;
95	}
96
97	return S_OK;
98	}
99
100	private:
101
102	GuestFile *mFile;
103	};
104	typedef ListenerImpl<GuestFileListener, GuestFile*> GuestFileListenerImpl;
105
106	VBOX_LISTENER_DECLARE(GuestFileListenerImpl)
107
108	// constructor / destructor
109	/////////////////////////////////////////////////////////////////////////////
110
111	DEFINE_EMPTY_CTOR_DTOR(GuestFile)
112
113	HRESULT GuestFile::FinalConstruct(void)
114	{
115	LogFlowThisFuncEnter();
116	return BaseFinalConstruct();
117	}
118
119	void GuestFile::FinalRelease(void)
120	{
121	LogFlowThisFuncEnter();
122	uninit();
123	BaseFinalRelease();
124	LogFlowThisFuncLeave();
125	}
126
127	// public initializer/uninitializer for internal purposes only
128	/////////////////////////////////////////////////////////////////////////////
129
130	/**
131	* Initializes a file object but does not open the file on the guest
132	* yet. This is done in the dedidcated openFile call.
133	*
134	* @return IPRT status code.
135	* @param pConsole Pointer to console object.
136	* @param pSession Pointer to session object.
137	* @param uFileID Host-based file ID (part of the context ID).
138	* @param openInfo File opening information.
139	*/
140	int GuestFile::init(Console pConsole, GuestSession pSession,
141	ULONG uFileID, const GuestFileOpenInfo &openInfo)
142	{
143	LogFlowThisFunc(("pConsole=%p, pSession=%p, uFileID=%RU32, strPath=%s\n",
144	pConsole, pSession, uFileID, openInfo.mFileName.c_str()));
145
146	AssertPtrReturn(pConsole, VERR_INVALID_POINTER);
147	AssertPtrReturn(pSession, VERR_INVALID_POINTER);
148
149	/* Enclose the state transition NotReady->InInit->Ready. */
150	AutoInitSpan autoInitSpan(this);
151	AssertReturn(autoInitSpan.isOk(), VERR_OBJECT_DESTROYED);
152
153	int vrc = bindToSession(pConsole, pSession, uFileID /* Object ID */);
154	if (RT_SUCCESS(vrc))
155	{
156	mSession = pSession;
157
158	mData.mID = uFileID;
159	mData.mInitialSize = 0;
160	mData.mStatus = FileStatus_Undefined;
161	mData.mOpenInfo = openInfo;
162
163	unconst(mEventSource).createObject();
164	HRESULT hr = mEventSource->init();
165	if (FAILED(hr))
166	vrc = VERR_COM_UNEXPECTED;
167	}
168
169	if (RT_SUCCESS(vrc))
170	{
171	try
172	{
173	GuestFileListener *pListener = new GuestFileListener();
174	ComObjPtr<GuestFileListenerImpl> thisListener;
175	HRESULT hr = thisListener.createObject();
176	if (SUCCEEDED(hr))
177	hr = thisListener->init(pListener, this);
178
179	if (SUCCEEDED(hr))
180	{
181	com::SafeArray <VBoxEventType_T> eventTypes;
182	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
183	eventTypes.push_back(VBoxEventType_OnGuestFileOffsetChanged);
184	eventTypes.push_back(VBoxEventType_OnGuestFileRead);
185	eventTypes.push_back(VBoxEventType_OnGuestFileWrite);
186	hr = mEventSource->RegisterListener(thisListener,
187	ComSafeArrayAsInParam(eventTypes),
188	TRUE /* Active listener */);
189	if (SUCCEEDED(hr))
190	{
191	vrc = baseInit();
192	if (RT_SUCCESS(vrc))
193	{
194	mLocalListener = thisListener;
195	}
196	}
197	else
198	vrc = VERR_COM_UNEXPECTED;
199	}
200	else
201	vrc = VERR_COM_UNEXPECTED;
202	}
203	catch(std::bad_alloc &)
204	{
205	vrc = VERR_NO_MEMORY;
206	}
207	}
208
209	if (RT_SUCCESS(vrc))
210	{
211	/* Confirm a successful initialization when it's the case. */
212	autoInitSpan.setSucceeded();
213	}
214	else
215	autoInitSpan.setFailed();
216
217	LogFlowFuncLeaveRC(vrc);
218	return vrc;
219	}
220
221	/**
222	* Uninitializes the instance.
223	* Called from FinalRelease().
224	*/
225	void GuestFile::uninit(void)
226	{
227	/* Enclose the state transition Ready->InUninit->NotReady. */
228	AutoUninitSpan autoUninitSpan(this);
229	if (autoUninitSpan.uninitDone())
230	return;
231
232	LogFlowThisFuncEnter();
233
234	baseUninit();
235	LogFlowThisFuncLeave();
236	}
237
238	// implementation of public getters/setters for attributes
239	/////////////////////////////////////////////////////////////////////////////
240
241	HRESULT GuestFile::getCreationMode(ULONG *aCreationMode)
242	{
243	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
244
245	*aCreationMode = mData.mOpenInfo.mCreationMode;
246
247	return S_OK;
248	}
249
250	HRESULT GuestFile::getOpenAction(FileOpenAction_T *aOpenAction)
251	{
252	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
253
254	*aOpenAction = mData.mOpenInfo.mOpenAction;
255
256	return S_OK;
257	}
258
259	HRESULT GuestFile::getEventSource(ComPtr<IEventSource> &aEventSource)
260	{
261	/* No need to lock - lifetime constant. */
262	mEventSource.queryInterfaceTo(aEventSource.asOutParam());
263
264	return S_OK;
265	}
266
267	HRESULT GuestFile::getFileName(com::Utf8Str &aFileName)
268	{
269	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
270
271	aFileName = mData.mOpenInfo.mFileName;
272
273	return S_OK;
274	}
275
276	HRESULT GuestFile::getId(ULONG *aId)
277	{
278	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
279
280	*aId = mData.mID;
281
282	return S_OK;
283	}
284
285	HRESULT GuestFile::getInitialSize(LONG64 *aInitialSize)
286	{
287	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
288
289	*aInitialSize = mData.mInitialSize;
290
291	return S_OK;
292	}
293
294	HRESULT GuestFile::getOffset(LONG64 *aOffset)
295	{
296	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
297
298	*aOffset = mData.mOffCurrent;
299
300	return S_OK;
301	}
302
303	HRESULT GuestFile::getAccessMode(FileAccessMode_T *aAccessMode)
304	{
305	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
306
307	*aAccessMode = mData.mOpenInfo.mAccessMode;
308
309	return S_OK;
310	}
311
312	HRESULT GuestFile::getStatus(FileStatus_T *aStatus)
313	{
314	LogFlowThisFuncEnter();
315
316	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
317
318	*aStatus = mData.mStatus;
319
320	return S_OK;
321	}
322
323	// private methods
324	/////////////////////////////////////////////////////////////////////////////
325
326	int GuestFile::i_callbackDispatcher(PVBOXGUESTCTRLHOSTCBCTX pCbCtx, PVBOXGUESTCTRLHOSTCALLBACK pSvcCb)
327	{
328	AssertPtrReturn(pCbCtx, VERR_INVALID_POINTER);
329	AssertPtrReturn(pSvcCb, VERR_INVALID_POINTER);
330
331	LogFlowThisFunc(("strName=%s, uContextID=%RU32, uFunction=%RU32, pSvcCb=%p\n",
332	mData.mOpenInfo.mFileName.c_str(), pCbCtx->uContextID, pCbCtx->uFunction, pSvcCb));
333
334	int vrc;
335	switch (pCbCtx->uFunction)
336	{
337	case GUEST_DISCONNECTED:
338	vrc = i_onGuestDisconnected(pCbCtx, pSvcCb);
339	break;
340
341	case GUEST_FILE_NOTIFY:
342	vrc = i_onFileNotify(pCbCtx, pSvcCb);
343	break;
344
345	default:
346	/* Silently ignore not implemented functions. */
347	vrc = VERR_NOT_SUPPORTED;
348	break;
349	}
350
351	#ifdef DEBUG
352	LogFlowFuncLeaveRC(vrc);
353	#endif
354	return vrc;
355	}
356
357	int GuestFile::i_closeFile(int *prcGuest)
358	{
359	LogFlowThisFunc(("strFile=%s\n", mData.mOpenInfo.mFileName.c_str()));
360
361	int vrc;
362
363	GuestWaitEvent *pEvent = NULL;
364	GuestEventTypes eventTypes;
365	try
366	{
367	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
368
369	vrc = registerWaitEvent(eventTypes, &pEvent);
370	}
371	catch (std::bad_alloc)
372	{
373	vrc = VERR_NO_MEMORY;
374	}
375
376	if (RT_FAILURE(vrc))
377	return vrc;
378
379	/* Prepare HGCM call. */
380	VBOXHGCMSVCPARM paParms[4];
381	int i = 0;
382	paParms[i++].setUInt32(pEvent->ContextID());
383	paParms[i++].setUInt32(mData.mID /* Guest file ID */);
384
385	vrc = sendCommand(HOST_FILE_CLOSE, i, paParms);
386	if (RT_SUCCESS(vrc))
387	vrc = i_waitForStatusChange(pEvent, 30 * 1000 /* Timeout in ms */,
388	NULL /* FileStatus */, prcGuest);
389	unregisterWaitEvent(pEvent);
390
391	LogFlowFuncLeaveRC(vrc);
392	return vrc;
393	}
394
395	/* static */
396	Utf8Str GuestFile::i_guestErrorToString(int rcGuest)
397	{
398	Utf8Str strError;
399
400	/** @todo pData->u32Flags: int vs. uint32 -- IPRT errors are negative !!! */
401	switch (rcGuest)
402	{
403	case VERR_ALREADY_EXISTS:
404	strError += Utf8StrFmt(tr("File already exists"));
405	break;
406
407	case VERR_FILE_NOT_FOUND:
408	strError += Utf8StrFmt(tr("File not found"));
409	break;
410
411	case VERR_NET_HOST_NOT_FOUND:
412	strError += Utf8StrFmt(tr("Host name not found"));
413	break;
414
415	case VERR_SHARING_VIOLATION:
416	strError += Utf8StrFmt(tr("Sharing violation"));
417	break;
418
419	default:
420	strError += Utf8StrFmt("%Rrc", rcGuest);
421	break;
422	}
423
424	return strError;
425	}
426
427	int GuestFile::i_onFileNotify(PVBOXGUESTCTRLHOSTCBCTX pCbCtx, PVBOXGUESTCTRLHOSTCALLBACK pSvcCbData)
428	{
429	AssertPtrReturn(pCbCtx, VERR_INVALID_POINTER);
430	AssertPtrReturn(pSvcCbData, VERR_INVALID_POINTER);
431
432	LogFlowThisFuncEnter();
433
434	if (pSvcCbData->mParms < 3)
435	return VERR_INVALID_PARAMETER;
436
437	int vrc = VINF_SUCCESS;
438
439	int idx = 1; /* Current parameter index. */
440	CALLBACKDATA_FILE_NOTIFY dataCb;
441	/* pSvcCb->mpaParms[0] always contains the context ID. */
442	pSvcCbData->mpaParms[idx++].getUInt32(&dataCb.uType);
443	pSvcCbData->mpaParms[idx++].getUInt32(&dataCb.rc);
444
445	int rcGuest = (int)dataCb.rc; /* uint32_t vs. int. */
446
447	LogFlowFunc(("uType=%RU32, rcGuest=%Rrc\n",
448	dataCb.uType, rcGuest));
449
450	if (RT_FAILURE(rcGuest))
451	{
452	int rc2 = i_setFileStatus(FileStatus_Error, rcGuest);
453	AssertRC(rc2);
454
455	rc2 = signalWaitEventInternal(pCbCtx,
456	rcGuest, NULL /* pPayload */);
457	AssertRC(rc2);
458
459	return VINF_SUCCESS; /* Report to the guest. */
460	}
461
462	switch (dataCb.uType)
463	{
464	case GUEST_FILE_NOTIFYTYPE_ERROR:
465	{
466	int rc2 = i_setFileStatus(FileStatus_Error, rcGuest);
467	AssertRC(rc2);
468
469	break;
470	}
471
472	case GUEST_FILE_NOTIFYTYPE_OPEN:
473	{
474	if (pSvcCbData->mParms == 4)
475	{
476	pSvcCbData->mpaParms[idx++].getUInt32(&dataCb.u.open.uHandle);
477
478	AssertMsg(mData.mID == VBOX_GUESTCTRL_CONTEXTID_GET_OBJECT(pCbCtx->uContextID),
479	("File ID %RU32 does not match context ID %RU32\n", mData.mID,
480	VBOX_GUESTCTRL_CONTEXTID_GET_OBJECT(pCbCtx->uContextID)));
481
482	/* Set the process status. */
483	int rc2 = i_setFileStatus(FileStatus_Open, rcGuest);
484	AssertRC(rc2);
485	}
486	else
487	vrc = VERR_NOT_SUPPORTED;
488
489	break;
490	}
491
492	case GUEST_FILE_NOTIFYTYPE_CLOSE:
493	{
494	int rc2 = i_setFileStatus(FileStatus_Closed, rcGuest);
495	AssertRC(rc2);
496
497	break;
498	}
499
500	case GUEST_FILE_NOTIFYTYPE_READ:
501	{
502	if (pSvcCbData->mParms == 4)
503	{
504	pSvcCbData->mpaParms[idx++].getPointer(&dataCb.u.read.pvData,
505	&dataCb.u.read.cbData);
506	uint32_t cbRead = dataCb.u.read.cbData;
507
508	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
509
510	mData.mOffCurrent += cbRead;
511
512	alock.release();
513
514	com::SafeArray<BYTE> data((size_t)cbRead);
515	data.initFrom((BYTE*)dataCb.u.read.pvData, cbRead);
516
517	fireGuestFileReadEvent(mEventSource, mSession, this, mData.mOffCurrent,
518	cbRead, ComSafeArrayAsInParam(data));
519	}
520	else
521	vrc = VERR_NOT_SUPPORTED;
522	break;
523	}
524
525	case GUEST_FILE_NOTIFYTYPE_WRITE:
526	{
527	if (pSvcCbData->mParms == 4)
528	{
529	pSvcCbData->mpaParms[idx++].getUInt32(&dataCb.u.write.cbWritten);
530
531	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
532
533	mData.mOffCurrent += dataCb.u.write.cbWritten;
534	uint64_t uOffCurrent = mData.mOffCurrent;
535
536	alock.release();
537
538	fireGuestFileWriteEvent(mEventSource, mSession, this, uOffCurrent,
539	dataCb.u.write.cbWritten);
540	}
541	else
542	vrc = VERR_NOT_SUPPORTED;
543	break;
544	}
545
546	case GUEST_FILE_NOTIFYTYPE_SEEK:
547	{
548	if (pSvcCbData->mParms == 4)
549	{
550	pSvcCbData->mpaParms[idx++].getUInt64(&dataCb.u.seek.uOffActual);
551
552	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
553
554	mData.mOffCurrent = dataCb.u.seek.uOffActual;
555
556	alock.release();
557
558	fireGuestFileOffsetChangedEvent(mEventSource, mSession, this,
559	dataCb.u.seek.uOffActual, 0 /* Processed */);
560	}
561	else
562	vrc = VERR_NOT_SUPPORTED;
563	break;
564	}
565
566	case GUEST_FILE_NOTIFYTYPE_TELL:
567	{
568	if (pSvcCbData->mParms == 4)
569	{
570	pSvcCbData->mpaParms[idx++].getUInt64(&dataCb.u.tell.uOffActual);
571
572	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
573
574	mData.mOffCurrent = dataCb.u.tell.uOffActual;
575
576	alock.release();
577
578	fireGuestFileOffsetChangedEvent(mEventSource, mSession, this,
579	dataCb.u.tell.uOffActual, 0 /* Processed */);
580	}
581	else
582	vrc = VERR_NOT_SUPPORTED;
583	break;
584	}
585
586	default:
587	vrc = VERR_NOT_SUPPORTED;
588	break;
589	}
590
591	if (RT_SUCCESS(vrc))
592	{
593	GuestWaitEventPayload payload(dataCb.uType, &dataCb, sizeof(dataCb));
594	int rc2 = signalWaitEventInternal(pCbCtx, rcGuest, &payload);
595	AssertRC(rc2);
596	}
597
598	LogFlowThisFunc(("uType=%RU32, rcGuest=%Rrc\n",
599	dataCb.uType, dataCb.rc));
600
601	LogFlowFuncLeaveRC(vrc);
602	return vrc;
603	}
604
605	int GuestFile::i_onGuestDisconnected(PVBOXGUESTCTRLHOSTCBCTX pCbCtx, PVBOXGUESTCTRLHOSTCALLBACK pSvcCbData)
606	{
607	AssertPtrReturn(pCbCtx, VERR_INVALID_POINTER);
608	AssertPtrReturn(pSvcCbData, VERR_INVALID_POINTER);
609
610	int vrc = i_setFileStatus(FileStatus_Down, VINF_SUCCESS);
611
612	LogFlowFuncLeaveRC(vrc);
613	return vrc;
614	}
615
616	/**
617	* Called by IGuestSession right before this file gets removed
618	* from the public file list.
619	*/
620	int GuestFile::i_onRemove(void)
621	{
622	LogFlowThisFuncEnter();
623
624	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
625
626	int vrc = VINF_SUCCESS;
627
628	/*
629	* Note: The event source stuff holds references to this object,
630	* so make sure that this is cleaned up before calling uninit().
631	*/
632	if (!mEventSource.isNull())
633	{
634	mEventSource->UnregisterListener(mLocalListener);
635
636	mLocalListener.setNull();
637	unconst(mEventSource).setNull();
638	}
639
640	LogFlowFuncLeaveRC(vrc);
641	return vrc;
642	}
643
644	int GuestFile::i_openFile(uint32_t uTimeoutMS, int *prcGuest)
645	{
646	LogFlowThisFuncEnter();
647
648	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
649
650	LogFlowThisFunc(("strFile=%s, enmAccessMode=%d (%s) enmOpenAction=%d (%s) uCreationMode=%RU32, mfOpenEx=%RU32\n",
651	mData.mOpenInfo.mFileName.c_str(), mData.mOpenInfo.mAccessMode, mData.mOpenInfo.mpszAccessMode,
652	mData.mOpenInfo.mOpenAction, mData.mOpenInfo.mpszOpenAction, mData.mOpenInfo.mCreationMode,
653	mData.mOpenInfo.mfOpenEx));
654	int vrc;
655
656	GuestWaitEvent *pEvent = NULL;
657	GuestEventTypes eventTypes;
658	try
659	{
660	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
661
662	vrc = registerWaitEvent(eventTypes, &pEvent);
663	}
664	catch (std::bad_alloc)
665	{
666	vrc = VERR_NO_MEMORY;
667	}
668
669	if (RT_FAILURE(vrc))
670	return vrc;
671
672	/* Prepare HGCM call. */
673	VBOXHGCMSVCPARM paParms[8];
674	int i = 0;
675	paParms[i++].setUInt32(pEvent->ContextID());
676	paParms[i++].setPointer((void*)mData.mOpenInfo.mFileName.c_str(),
677	(ULONG)mData.mOpenInfo.mFileName.length() + 1);
678	paParms[i++].setString(mData.mOpenInfo.mpszAccessMode);
679	paParms[i++].setString(mData.mOpenInfo.mpszOpenAction);
680	paParms[i++].setString(""); /** @todo sharing mode. */
681	paParms[i++].setUInt32(mData.mOpenInfo.mCreationMode);
682	paParms[i++].setUInt64(0 /* initial offset */);
683	/** @todo Next protocol version: add flags, replace strings, remove initial offset. */
684
685	alock.release(); /* Drop write lock before sending. */
686
687	vrc = sendCommand(HOST_FILE_OPEN, i, paParms);
688	if (RT_SUCCESS(vrc))
689	vrc = i_waitForStatusChange(pEvent, uTimeoutMS,
690	NULL /* FileStatus */, prcGuest);
691
692	unregisterWaitEvent(pEvent);
693
694	LogFlowFuncLeaveRC(vrc);
695	return vrc;
696	}
697
698	int GuestFile::i_readData(uint32_t uSize, uint32_t uTimeoutMS,
699	void* pvData, uint32_t cbData, uint32_t* pcbRead)
700	{
701	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
702	AssertReturn(cbData, VERR_INVALID_PARAMETER);
703
704	LogFlowThisFunc(("uSize=%RU32, uTimeoutMS=%RU32, pvData=%p, cbData=%zu\n",
705	uSize, uTimeoutMS, pvData, cbData));
706
707	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
708
709	int vrc;
710
711	GuestWaitEvent *pEvent = NULL;
712	GuestEventTypes eventTypes;
713	try
714	{
715	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
716	eventTypes.push_back(VBoxEventType_OnGuestFileRead);
717
718	vrc = registerWaitEvent(eventTypes, &pEvent);
719	}
720	catch (std::bad_alloc)
721	{
722	vrc = VERR_NO_MEMORY;
723	}
724
725	if (RT_FAILURE(vrc))
726	return vrc;
727
728	/* Prepare HGCM call. */
729	VBOXHGCMSVCPARM paParms[4];
730	int i = 0;
731	paParms[i++].setUInt32(pEvent->ContextID());
732	paParms[i++].setUInt32(mData.mID /* File handle */);
733	paParms[i++].setUInt32(uSize /* Size (in bytes) to read */);
734
735	alock.release(); /* Drop write lock before sending. */
736
737	vrc = sendCommand(HOST_FILE_READ, i, paParms);
738	if (RT_SUCCESS(vrc))
739	{
740	uint32_t cbRead = 0;
741	vrc = i_waitForRead(pEvent, uTimeoutMS, pvData, cbData, &cbRead);
742	if (RT_SUCCESS(vrc))
743	{
744	LogFlowThisFunc(("cbRead=%RU32\n", cbRead));
745	if (pcbRead)
746	*pcbRead = cbRead;
747	}
748	}
749
750	unregisterWaitEvent(pEvent);
751
752	LogFlowFuncLeaveRC(vrc);
753	return vrc;
754	}
755
756	int GuestFile::i_readDataAt(uint64_t uOffset, uint32_t uSize, uint32_t uTimeoutMS,
757	void* pvData, size_t cbData, size_t* pcbRead)
758	{
759	LogFlowThisFunc(("uOffset=%RU64, uSize=%RU32, uTimeoutMS=%RU32, pvData=%p, cbData=%zu\n",
760	uOffset, uSize, uTimeoutMS, pvData, cbData));
761
762	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
763
764	int vrc;
765
766	GuestWaitEvent *pEvent = NULL;
767	GuestEventTypes eventTypes;
768	try
769	{
770	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
771	eventTypes.push_back(VBoxEventType_OnGuestFileRead);
772
773	vrc = registerWaitEvent(eventTypes, &pEvent);
774	}
775	catch (std::bad_alloc)
776	{
777	vrc = VERR_NO_MEMORY;
778	}
779
780	if (RT_FAILURE(vrc))
781	return vrc;
782
783	/* Prepare HGCM call. */
784	VBOXHGCMSVCPARM paParms[4];
785	int i = 0;
786	paParms[i++].setUInt32(pEvent->ContextID());
787	paParms[i++].setUInt32(mData.mID /* File handle */);
788	paParms[i++].setUInt64(uOffset /* Offset (in bytes) to start reading */);
789	paParms[i++].setUInt32(uSize /* Size (in bytes) to read */);
790
791	alock.release(); /* Drop write lock before sending. */
792
793	vrc = sendCommand(HOST_FILE_READ_AT, i, paParms);
794	if (RT_SUCCESS(vrc))
795	{
796	uint32_t cbRead = 0;
797	vrc = i_waitForRead(pEvent, uTimeoutMS, pvData, cbData, &cbRead);
798	if (RT_SUCCESS(vrc))
799	{
800	LogFlowThisFunc(("cbRead=%RU32\n", cbRead));
801
802	if (pcbRead)
803	*pcbRead = cbRead;
804	}
805	}
806
807	unregisterWaitEvent(pEvent);
808
809	LogFlowFuncLeaveRC(vrc);
810	return vrc;
811	}
812
813	int GuestFile::i_seekAt(int64_t iOffset, GUEST_FILE_SEEKTYPE eSeekType,
814	uint32_t uTimeoutMS, uint64_t *puOffset)
815	{
816	LogFlowThisFunc(("iOffset=%RI64, uTimeoutMS=%RU32\n",
817	iOffset, uTimeoutMS));
818
819	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
820
821	int vrc;
822
823	GuestWaitEvent *pEvent = NULL;
824	GuestEventTypes eventTypes;
825	try
826	{
827	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
828	eventTypes.push_back(VBoxEventType_OnGuestFileOffsetChanged);
829
830	vrc = registerWaitEvent(eventTypes, &pEvent);
831	}
832	catch (std::bad_alloc)
833	{
834	vrc = VERR_NO_MEMORY;
835	}
836
837	if (RT_FAILURE(vrc))
838	return vrc;
839
840	/* Prepare HGCM call. */
841	VBOXHGCMSVCPARM paParms[4];
842	int i = 0;
843	paParms[i++].setUInt32(pEvent->ContextID());
844	paParms[i++].setUInt32(mData.mID /* File handle */);
845	paParms[i++].setUInt32(eSeekType /* Seek method */);
846	/** @todo uint64_t vs. int64_t! */
847	paParms[i++].setUInt64((uint64_t)iOffset /* Offset (in bytes) to start reading */);
848
849	alock.release(); /* Drop write lock before sending. */
850
851	vrc = sendCommand(HOST_FILE_SEEK, i, paParms);
852	if (RT_SUCCESS(vrc))
853	vrc = i_waitForOffsetChange(pEvent, uTimeoutMS, puOffset);
854
855	unregisterWaitEvent(pEvent);
856
857	LogFlowFuncLeaveRC(vrc);
858	return vrc;
859	}
860
861	/* static */
862	HRESULT GuestFile::i_setErrorExternal(VirtualBoxBase *pInterface, int rcGuest)
863	{
864	AssertPtr(pInterface);
865	AssertMsg(RT_FAILURE(rcGuest), ("Guest rc does not indicate a failure when setting error\n"));
866
867	return pInterface->setError(VBOX_E_IPRT_ERROR, GuestFile::i_guestErrorToString(rcGuest).c_str());
868	}
869
870	int GuestFile::i_setFileStatus(FileStatus_T fileStatus, int fileRc)
871	{
872	LogFlowThisFuncEnter();
873
874	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
875
876	LogFlowThisFunc(("oldStatus=%RU32, newStatus=%RU32, fileRc=%Rrc\n",
877	mData.mStatus, fileStatus, fileRc));
878
879	#ifdef VBOX_STRICT
880	if (fileStatus == FileStatus_Error)
881	{
882	AssertMsg(RT_FAILURE(fileRc), ("Guest rc must be an error (%Rrc)\n", fileRc));
883	}
884	else
885	AssertMsg(RT_SUCCESS(fileRc), ("Guest rc must not be an error (%Rrc)\n", fileRc));
886	#endif
887
888	if (mData.mStatus != fileStatus)
889	{
890	mData.mStatus = fileStatus;
891	mData.mLastError = fileRc;
892
893	ComObjPtr<VirtualBoxErrorInfo> errorInfo;
894	HRESULT hr = errorInfo.createObject();
895	ComAssertComRC(hr);
896	if (RT_FAILURE(fileRc))
897	{
898	hr = errorInfo->initEx(VBOX_E_IPRT_ERROR, fileRc,
899	COM_IIDOF(IGuestFile), getComponentName(),
900	i_guestErrorToString(fileRc));
901	ComAssertComRC(hr);
902	}
903
904	alock.release(); /* Release lock before firing off event. */
905
906	fireGuestFileStateChangedEvent(mEventSource, mSession,
907	this, fileStatus, errorInfo);
908	}
909
910	return VINF_SUCCESS;
911	}
912
913	int GuestFile::i_waitForOffsetChange(GuestWaitEvent *pEvent,
914	uint32_t uTimeoutMS, uint64_t *puOffset)
915	{
916	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
917
918	VBoxEventType_T evtType;
919	ComPtr<IEvent> pIEvent;
920	int vrc = waitForEvent(pEvent, uTimeoutMS,
921	&evtType, pIEvent.asOutParam());
922	if (RT_SUCCESS(vrc))
923	{
924	if (evtType == VBoxEventType_OnGuestFileOffsetChanged)
925	{
926	if (puOffset)
927	{
928	ComPtr<IGuestFileOffsetChangedEvent> pFileEvent = pIEvent;
929	Assert(!pFileEvent.isNull());
930
931	HRESULT hr = pFileEvent->COMGETTER(Offset)((LONG64*)puOffset);
932	ComAssertComRC(hr);
933	}
934	}
935	else
936	vrc = VWRN_GSTCTL_OBJECTSTATE_CHANGED;
937	}
938
939	return vrc;
940	}
941
942	int GuestFile::i_waitForRead(GuestWaitEvent *pEvent, uint32_t uTimeoutMS,
943	void pvData, size_t cbData, uint32_t pcbRead)
944	{
945	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
946
947	VBoxEventType_T evtType;
948	ComPtr<IEvent> pIEvent;
949	int vrc = waitForEvent(pEvent, uTimeoutMS,
950	&evtType, pIEvent.asOutParam());
951	if (RT_SUCCESS(vrc))
952	{
953	if (evtType == VBoxEventType_OnGuestFileRead)
954	{
955	ComPtr<IGuestFileReadEvent> pFileEvent = pIEvent;
956	Assert(!pFileEvent.isNull());
957
958	HRESULT hr;
959	if (pvData)
960	{
961	com::SafeArray <BYTE> data;
962	hr = pFileEvent->COMGETTER(Data)(ComSafeArrayAsOutParam(data));
963	ComAssertComRC(hr);
964	size_t cbRead = data.size();
965	if ( cbRead
966	&& cbRead <= cbData)
967	{
968	memcpy(pvData, data.raw(), data.size());
969	}
970	else
971	vrc = VERR_BUFFER_OVERFLOW;
972	}
973	if (pcbRead)
974	{
975	hr = pFileEvent->COMGETTER(Processed)((ULONG*)pcbRead);
976	ComAssertComRC(hr);
977	}
978	}
979	else
980	vrc = VWRN_GSTCTL_OBJECTSTATE_CHANGED;
981	}
982
983	return vrc;
984	}
985
986	int GuestFile::i_waitForStatusChange(GuestWaitEvent *pEvent, uint32_t uTimeoutMS,
987	FileStatus_T pFileStatus, int prcGuest)
988	{
989	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
990	/* pFileStatus is optional. */
991
992	VBoxEventType_T evtType;
993	ComPtr<IEvent> pIEvent;
994	int vrc = waitForEvent(pEvent, uTimeoutMS,
995	&evtType, pIEvent.asOutParam());
996	if (RT_SUCCESS(vrc))
997	{
998	Assert(evtType == VBoxEventType_OnGuestFileStateChanged);
999	ComPtr<IGuestFileStateChangedEvent> pFileEvent = pIEvent;
1000	Assert(!pFileEvent.isNull());
1001
1002	HRESULT hr;
1003	if (pFileStatus)
1004	{
1005	hr = pFileEvent->COMGETTER(Status)(pFileStatus);
1006	ComAssertComRC(hr);
1007	}
1008
1009	ComPtr<IVirtualBoxErrorInfo> errorInfo;
1010	hr = pFileEvent->COMGETTER(Error)(errorInfo.asOutParam());
1011	ComAssertComRC(hr);
1012
1013	LONG lGuestRc;
1014	hr = errorInfo->COMGETTER(ResultDetail)(&lGuestRc);
1015	ComAssertComRC(hr);
1016
1017	LogFlowThisFunc(("resultDetail=%RI32 (%Rrc)\n",
1018	lGuestRc, lGuestRc));
1019
1020	if (RT_FAILURE((int)lGuestRc))
1021	vrc = VERR_GSTCTL_GUEST_ERROR;
1022
1023	if (prcGuest)
1024	*prcGuest = (int)lGuestRc;
1025	}
1026
1027	return vrc;
1028	}
1029
1030	int GuestFile::i_waitForWrite(GuestWaitEvent *pEvent,
1031	uint32_t uTimeoutMS, uint32_t *pcbWritten)
1032	{
1033	AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
1034
1035	VBoxEventType_T evtType;
1036	ComPtr<IEvent> pIEvent;
1037	int vrc = waitForEvent(pEvent, uTimeoutMS,
1038	&evtType, pIEvent.asOutParam());
1039	if (RT_SUCCESS(vrc))
1040	{
1041	if (evtType == VBoxEventType_OnGuestFileWrite)
1042	{
1043	if (pcbWritten)
1044	{
1045	ComPtr<IGuestFileWriteEvent> pFileEvent = pIEvent;
1046	Assert(!pFileEvent.isNull());
1047
1048	HRESULT hr = pFileEvent->COMGETTER(Processed)((ULONG*)pcbWritten);
1049	ComAssertComRC(hr);
1050	}
1051	}
1052	else
1053	vrc = VWRN_GSTCTL_OBJECTSTATE_CHANGED;
1054	}
1055
1056	return vrc;
1057	}
1058
1059	int GuestFile::i_writeData(uint32_t uTimeoutMS, void *pvData, uint32_t cbData,
1060	uint32_t *pcbWritten)
1061	{
1062	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
1063	AssertReturn(cbData, VERR_INVALID_PARAMETER);
1064
1065	LogFlowThisFunc(("uTimeoutMS=%RU32, pvData=%p, cbData=%zu\n",
1066	uTimeoutMS, pvData, cbData));
1067
1068	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1069
1070	int vrc;
1071
1072	GuestWaitEvent *pEvent = NULL;
1073	GuestEventTypes eventTypes;
1074	try
1075	{
1076	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
1077	eventTypes.push_back(VBoxEventType_OnGuestFileWrite);
1078
1079	vrc = registerWaitEvent(eventTypes, &pEvent);
1080	}
1081	catch (std::bad_alloc)
1082	{
1083	vrc = VERR_NO_MEMORY;
1084	}
1085
1086	if (RT_FAILURE(vrc))
1087	return vrc;
1088
1089	/* Prepare HGCM call. */
1090	VBOXHGCMSVCPARM paParms[8];
1091	int i = 0;
1092	paParms[i++].setUInt32(pEvent->ContextID());
1093	paParms[i++].setUInt32(mData.mID /* File handle */);
1094	paParms[i++].setUInt32(cbData /* Size (in bytes) to write */);
1095	paParms[i++].setPointer(pvData, cbData);
1096
1097	alock.release(); /* Drop write lock before sending. */
1098
1099	vrc = sendCommand(HOST_FILE_WRITE, i, paParms);
1100	if (RT_SUCCESS(vrc))
1101	{
1102	uint32_t cbWritten = 0;
1103	vrc = i_waitForWrite(pEvent, uTimeoutMS, &cbWritten);
1104	if (RT_SUCCESS(vrc))
1105	{
1106	LogFlowThisFunc(("cbWritten=%RU32\n", cbWritten));
1107	if (cbWritten)
1108	*pcbWritten = cbWritten;
1109	}
1110	}
1111
1112	unregisterWaitEvent(pEvent);
1113
1114	LogFlowFuncLeaveRC(vrc);
1115	return vrc;
1116	}
1117
1118	int GuestFile::i_writeDataAt(uint64_t uOffset, uint32_t uTimeoutMS,
1119	void pvData, uint32_t cbData, uint32_t pcbWritten)
1120	{
1121	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
1122	AssertReturn(cbData, VERR_INVALID_PARAMETER);
1123
1124	LogFlowThisFunc(("uOffset=%RU64, uTimeoutMS=%RU32, pvData=%p, cbData=%zu\n",
1125	uOffset, uTimeoutMS, pvData, cbData));
1126
1127	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1128
1129	int vrc;
1130
1131	GuestWaitEvent *pEvent = NULL;
1132	GuestEventTypes eventTypes;
1133	try
1134	{
1135	eventTypes.push_back(VBoxEventType_OnGuestFileStateChanged);
1136	eventTypes.push_back(VBoxEventType_OnGuestFileWrite);
1137
1138	vrc = registerWaitEvent(eventTypes, &pEvent);
1139	}
1140	catch (std::bad_alloc)
1141	{
1142	vrc = VERR_NO_MEMORY;
1143	}
1144
1145	if (RT_FAILURE(vrc))
1146	return vrc;
1147
1148	/* Prepare HGCM call. */
1149	VBOXHGCMSVCPARM paParms[8];
1150	int i = 0;
1151	paParms[i++].setUInt32(pEvent->ContextID());
1152	paParms[i++].setUInt32(mData.mID /* File handle */);
1153	paParms[i++].setUInt64(uOffset /* Offset where to starting writing */);
1154	paParms[i++].setUInt32(cbData /* Size (in bytes) to write */);
1155	paParms[i++].setPointer(pvData, cbData);
1156
1157	alock.release(); /* Drop write lock before sending. */
1158
1159	vrc = sendCommand(HOST_FILE_WRITE_AT, i, paParms);
1160	if (RT_SUCCESS(vrc))
1161	{
1162	uint32_t cbWritten = 0;
1163	vrc = i_waitForWrite(pEvent, uTimeoutMS, &cbWritten);
1164	if (RT_SUCCESS(vrc))
1165	{
1166	LogFlowThisFunc(("cbWritten=%RU32\n", cbWritten));
1167	if (cbWritten)
1168	*pcbWritten = cbWritten;
1169	}
1170	}
1171
1172	unregisterWaitEvent(pEvent);
1173
1174	LogFlowFuncLeaveRC(vrc);
1175	return vrc;
1176	}
1177
1178	// Wrapped IGuestFile methods
1179	/////////////////////////////////////////////////////////////////////////////
1180	HRESULT GuestFile::close()
1181	{
1182	LogFlowThisFuncEnter();
1183
1184	/* Close file on guest. */
1185	int rcGuest;
1186	int rc = i_closeFile(&rcGuest);
1187	/* On failure don't return here, instead do all the cleanup
1188	* work first and then return an error. */
1189
1190	AssertPtr(mSession);
1191	int rc2 = mSession->i_fileRemoveFromList(this);
1192	if (RT_SUCCESS(rc))
1193	rc = rc2;
1194
1195	if (RT_FAILURE(rc))
1196	{
1197	if (rc == VERR_GSTCTL_GUEST_ERROR)
1198	return GuestFile::i_setErrorExternal(this, rcGuest);
1199
1200	return setError(VBOX_E_IPRT_ERROR,
1201	tr("Closing guest file failed with %Rrc\n"), rc);
1202	}
1203
1204	LogFlowThisFunc(("Returning rc=%Rrc\n", rc));
1205	return S_OK;
1206	}
1207
1208	HRESULT GuestFile::queryInfo(ComPtr<IFsObjInfo> &aObjInfo)
1209	{
1210	RT_NOREF(aObjInfo);
1211	ReturnComNotImplemented();
1212	}
1213
1214	HRESULT GuestFile::querySize(LONG64 *aSize)
1215	{
1216	RT_NOREF(aSize);
1217	ReturnComNotImplemented();
1218	}
1219
1220	HRESULT GuestFile::read(ULONG aToRead, ULONG aTimeoutMS, std::vector<BYTE> &aData)
1221	{
1222	if (aToRead == 0)
1223	return setError(E_INVALIDARG, tr("The size to read is zero"));
1224
1225	aData.resize(aToRead);
1226
1227	HRESULT hr = S_OK;
1228
1229	uint32_t cbRead;
1230	int vrc = i_readData(aToRead, aTimeoutMS,
1231	&aData.front(), aToRead, &cbRead);
1232
1233	if (RT_SUCCESS(vrc))
1234	{
1235	if (aData.size() != cbRead)
1236	aData.resize(cbRead);
1237	}
1238	else
1239	{
1240	aData.resize(0);
1241
1242	switch (vrc)
1243	{
1244	default:
1245	hr = setError(VBOX_E_IPRT_ERROR,
1246	tr("Reading from file \"%s\" failed: %Rrc"),
1247	mData.mOpenInfo.mFileName.c_str(), vrc);
1248	break;
1249	}
1250	}
1251
1252	LogFlowFuncLeaveRC(vrc);
1253	return hr;
1254	}
1255	HRESULT GuestFile::readAt(LONG64 aOffset, ULONG aToRead, ULONG aTimeoutMS, std::vector<BYTE> &aData)
1256
1257	{
1258	if (aToRead == 0)
1259	return setError(E_INVALIDARG, tr("The size to read is zero"));
1260
1261	aData.resize(aToRead);
1262
1263	HRESULT hr = S_OK;
1264
1265	size_t cbRead;
1266	int vrc = i_readDataAt(aOffset, aToRead, aTimeoutMS,
1267	&aData.front(), aToRead, &cbRead);
1268	if (RT_SUCCESS(vrc))
1269	{
1270	if (aData.size() != cbRead)
1271	aData.resize(cbRead);
1272	}
1273	else
1274	{
1275	aData.resize(0);
1276
1277	switch (vrc)
1278	{
1279	default:
1280	hr = setError(VBOX_E_IPRT_ERROR,
1281	tr("Reading from file \"%s\" (at offset %RU64) failed: %Rrc"),
1282	mData.mOpenInfo.mFileName.c_str(), aOffset, vrc);
1283	break;
1284	}
1285	}
1286
1287	LogFlowFuncLeaveRC(vrc);
1288	return hr;
1289	}
1290
1291	HRESULT GuestFile::seek(LONG64 aOffset, FileSeekOrigin_T aWhence, LONG64 *aNewOffset)
1292	{
1293	LogFlowThisFuncEnter();
1294
1295	HRESULT hr = S_OK;
1296
1297	GUEST_FILE_SEEKTYPE eSeekType;
1298	switch (aWhence)
1299	{
1300	case FileSeekOrigin_Begin:
1301	eSeekType = GUEST_FILE_SEEKTYPE_BEGIN;
1302	break;
1303
1304	case FileSeekOrigin_Current:
1305	eSeekType = GUEST_FILE_SEEKTYPE_CURRENT;
1306	break;
1307
1308	case FileSeekOrigin_End:
1309	eSeekType = GUEST_FILE_SEEKTYPE_END;
1310	break;
1311
1312	default:
1313	return setError(E_INVALIDARG, tr("Invalid seek type specified"));
1314	break; /* Never reached. */
1315	}
1316
1317	uint64_t uNewOffset;
1318	int vrc = i_seekAt(aOffset, eSeekType,
1319	30 * 1000 /* 30s timeout */, &uNewOffset);
1320	if (RT_SUCCESS(vrc))
1321	*aNewOffset = RT_MIN(uNewOffset, (uint64_t)INT64_MAX);
1322	else
1323	{
1324	switch (vrc)
1325	{
1326	default:
1327	hr = setError(VBOX_E_IPRT_ERROR,
1328	tr("Seeking file \"%s\" (to offset %RI64) failed: %Rrc"),
1329	mData.mOpenInfo.mFileName.c_str(), aOffset, vrc);
1330	break;
1331	}
1332	}
1333
1334	LogFlowFuncLeaveRC(vrc);
1335	return hr;
1336	}
1337
1338	HRESULT GuestFile::setACL(const com::Utf8Str &aAcl, ULONG aMode)
1339	{
1340	RT_NOREF(aAcl, aMode);
1341	ReturnComNotImplemented();
1342	}
1343
1344	HRESULT GuestFile::setSize(LONG64 aSize)
1345	{
1346	RT_NOREF(aSize);
1347	ReturnComNotImplemented();
1348	}
1349
1350	HRESULT GuestFile::write(const std::vector<BYTE> &aData, ULONG aTimeoutMS, ULONG *aWritten)
1351	{
1352	LogFlowThisFuncEnter();
1353
1354	HRESULT hr = S_OK;
1355
1356	uint32_t cbData = (uint32_t)aData.size();
1357	void pvData = cbData > 0? (void )&aData.front(): NULL;
1358	int vrc = i_writeData(aTimeoutMS, pvData, cbData,
1359	(uint32_t*)aWritten);
1360	if (RT_FAILURE(vrc))
1361	{
1362	switch (vrc)
1363	{
1364	default:
1365	hr = setError(VBOX_E_IPRT_ERROR,
1366	tr("Writing %zubytes to file \"%s\" failed: %Rrc"),
1367	aData.size(), mData.mOpenInfo.mFileName.c_str(), vrc);
1368	break;
1369	}
1370	}
1371
1372	LogFlowFuncLeaveRC(vrc);
1373	return hr;
1374	}
1375
1376	HRESULT GuestFile::writeAt(LONG64 aOffset, const std::vector<BYTE> &aData, ULONG aTimeoutMS, ULONG *aWritten)
1377
1378	{
1379	LogFlowThisFuncEnter();
1380
1381	HRESULT hr = S_OK;
1382
1383	uint32_t cbData = (uint32_t)aData.size();
1384	void pvData = cbData > 0? (void )&aData.front(): NULL;
1385	int vrc = i_writeData(aTimeoutMS, pvData, cbData,
1386	(uint32_t*)aWritten);
1387	if (RT_FAILURE(vrc))
1388	{
1389	switch (vrc)
1390	{
1391	default:
1392	hr = setError(VBOX_E_IPRT_ERROR,
1393	tr("Writing %zubytes to file \"%s\" (at offset %RU64) failed: %Rrc"),
1394	aData.size(), mData.mOpenInfo.mFileName.c_str(), aOffset, vrc);
1395	break;
1396	}
1397	}
1398
1399	LogFlowFuncLeaveRC(vrc);
1400	return hr;
1401	}
1402

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source: vbox/trunk/src/VBox/Main/src-client/GuestFileImpl.cpp@ 71299

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