VirtualBox

source: vbox/trunk/src/VBox/Main/include/VirtualBoxImpl.h@ 10801

Last change on this file since 10801 was 10595, checked in by vboxsync, 16 years ago

Main: Performance: Typos, docs, cosmetics.
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1/* $Id: VirtualBoxImpl.h 10595 2008-07-14 12:23:57Z vboxsync $ */
2
3/** @file
4 *
5 * VirtualBox COM class implementation
6 */
7
8/*
9 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
10 *
11 * This file is part of VirtualBox Open Source Edition (OSE), as
12 * available from http://www.virtualbox.org. This file is free software;
13 * you can redistribute it and/or modify it under the terms of the GNU
14 * General Public License (GPL) as published by the Free Software
15 * Foundation, in version 2 as it comes in the "COPYING" file of the
16 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
20 * Clara, CA 95054 USA or visit http://www.sun.com if you need
21 * additional information or have any questions.
22 */
23
24#ifndef ____H_VIRTUALBOXIMPL
25#define ____H_VIRTUALBOXIMPL
26
27#include "VirtualBoxBase.h"
28
29#include "VBox/com/EventQueue.h"
30
31#include <list>
32#include <vector>
33#include <map>
34
35#ifdef RT_OS_WINDOWS
36# include "win/resource.h"
37#endif
38
39#ifdef VBOX_WITH_RESOURCE_USAGE_API
40#include "PerformanceImpl.h"
41#endif /* VBOX_WITH_RESOURCE_USAGE_API */
42
43
44class Machine;
45class SessionMachine;
46class HardDisk;
47class HVirtualDiskImage;
48class DVDImage;
49class FloppyImage;
50class MachineCollection;
51class HardDiskCollection;
52class DVDImageCollection;
53class FloppyImageCollection;
54class GuestOSType;
55class GuestOSTypeCollection;
56class SharedFolder;
57class Progress;
58class ProgressCollection;
59class Host;
60class SystemProperties;
61
62#ifdef RT_OS_WINDOWS
63class SVCHlpClient;
64#endif
65
66struct VMClientWatcherData;
67
68class ATL_NO_VTABLE VirtualBox :
69 public VirtualBoxBaseWithChildrenNEXT,
70 public VirtualBoxSupportErrorInfoImpl <VirtualBox, IVirtualBox>,
71 public VirtualBoxSupportTranslation <VirtualBox>,
72#ifdef RT_OS_WINDOWS
73 public IDispatchImpl<IVirtualBox, &IID_IVirtualBox, &LIBID_VirtualBox,
74 kTypeLibraryMajorVersion, kTypeLibraryMinorVersion>,
75 public CComCoClass<VirtualBox, &CLSID_VirtualBox>
76#else
77 public IVirtualBox
78#endif
79{
80
81public:
82
83 typedef std::list <ComPtr <IVirtualBoxCallback> > CallbackList;
84 typedef std::vector <ComPtr <IVirtualBoxCallback> > CallbackVector;
85
86 class CallbackEvent;
87 friend class CallbackEvent;
88
89 VIRTUALBOXBASE_ADD_ERRORINFO_SUPPORT (VirtualBox)
90
91 DECLARE_CLASSFACTORY_SINGLETON(VirtualBox)
92
93 DECLARE_REGISTRY_RESOURCEID(IDR_VIRTUALBOX)
94 DECLARE_NOT_AGGREGATABLE(VirtualBox)
95
96 DECLARE_PROTECT_FINAL_CONSTRUCT()
97
98 BEGIN_COM_MAP(VirtualBox)
99 COM_INTERFACE_ENTRY(IDispatch)
100 COM_INTERFACE_ENTRY(ISupportErrorInfo)
101 COM_INTERFACE_ENTRY(IVirtualBox)
102 END_COM_MAP()
103
104 NS_DECL_ISUPPORTS
105
106 /* to postpone generation of the default ctor/dtor */
107 VirtualBox();
108 ~VirtualBox();
109
110 HRESULT FinalConstruct();
111 void FinalRelease();
112
113 /* public initializer/uninitializer for internal purposes only */
114 HRESULT init();
115 void uninit();
116
117 /* IVirtualBox properties */
118 STDMETHOD(COMGETTER(Version)) (BSTR *aVersion);
119 STDMETHOD(COMGETTER(PackageType)) (BSTR *aPackageType);
120 STDMETHOD(COMGETTER(HomeFolder)) (BSTR *aHomeFolder);
121 STDMETHOD(COMGETTER(SettingsFilePath)) (BSTR *aSettingsFilePath);
122 STDMETHOD(COMGETTER(SettingsFileVersion)) (BSTR *aSettingsFileVersion);
123 STDMETHOD(COMGETTER(SettingsFormatVersion)) (BSTR *aSettingsFormatVersion);
124 STDMETHOD(COMGETTER(Host)) (IHost **aHost);
125 STDMETHOD(COMGETTER(SystemProperties)) (ISystemProperties **aSystemProperties);
126 STDMETHOD(COMGETTER(Machines)) (IMachineCollection **aMachines);
127 STDMETHOD(COMGETTER(Machines2)) (ComSafeArrayOut (IMachine *, aMachines));
128 STDMETHOD(COMGETTER(HardDisks)) (IHardDiskCollection **aHardDisks);
129 STDMETHOD(COMGETTER(DVDImages)) (IDVDImageCollection **aDVDImages);
130 STDMETHOD(COMGETTER(FloppyImages)) (IFloppyImageCollection **aFloppyImages);
131 STDMETHOD(COMGETTER(ProgressOperations)) (IProgressCollection **aOperations);
132 STDMETHOD(COMGETTER(GuestOSTypes)) (IGuestOSTypeCollection **aGuestOSTypes);
133 STDMETHOD(COMGETTER(SharedFolders)) (ISharedFolderCollection **aSharedFolders);
134 STDMETHOD(COMGETTER(PerformanceCollector)) (IPerformanceCollector **aPerformanceCollector);
135
136 /* IVirtualBox methods */
137
138 STDMETHOD(CreateMachine) (INPTR BSTR aBaseFolder, INPTR BSTR aName,
139 INPTR GUIDPARAM aId, IMachine **aMachine);
140 STDMETHOD(CreateLegacyMachine) (INPTR BSTR aSettingsFile, INPTR BSTR aName,
141 INPTR GUIDPARAM aId, IMachine **aMachine);
142 STDMETHOD(OpenMachine) (INPTR BSTR aSettingsFile, IMachine **aMachine);
143 STDMETHOD(RegisterMachine) (IMachine *aMachine);
144 STDMETHOD(GetMachine) (INPTR GUIDPARAM aId, IMachine **aMachine);
145 STDMETHOD(FindMachine) (INPTR BSTR aName, IMachine **aMachine);
146 STDMETHOD(UnregisterMachine) (INPTR GUIDPARAM aId, IMachine **aMachine);
147
148 STDMETHOD(CreateHardDisk) (HardDiskStorageType_T aStorageType, IHardDisk **aHardDisk);
149 STDMETHOD(OpenHardDisk) (INPTR BSTR aLocation, IHardDisk **aHardDisk);
150 STDMETHOD(OpenVirtualDiskImage) (INPTR BSTR aFilePath, IVirtualDiskImage **aImage);
151 STDMETHOD(RegisterHardDisk) (IHardDisk *aHardDisk);
152 STDMETHOD(GetHardDisk) (INPTR GUIDPARAM aId, IHardDisk **aHardDisk);
153 STDMETHOD(FindHardDisk) (INPTR BSTR aLocation, IHardDisk **aHardDisk);
154 STDMETHOD(FindVirtualDiskImage) (INPTR BSTR aFilePath, IVirtualDiskImage **aImage);
155 STDMETHOD(UnregisterHardDisk) (INPTR GUIDPARAM aId, IHardDisk **aHardDisk);
156
157 STDMETHOD(OpenDVDImage) (INPTR BSTR aFilePath, INPTR GUIDPARAM aId,
158 IDVDImage **aDVDImage);
159 STDMETHOD(RegisterDVDImage) (IDVDImage *aDVDImage);
160 STDMETHOD(GetDVDImage) (INPTR GUIDPARAM aId, IDVDImage **aDVDImage);
161 STDMETHOD(FindDVDImage) (INPTR BSTR aFilePath, IDVDImage **aDVDImage);
162 STDMETHOD(GetDVDImageUsage) (INPTR GUIDPARAM aId,
163 ResourceUsage_T aUsage,
164 BSTR *aMachineIDs);
165 STDMETHOD(UnregisterDVDImage) (INPTR GUIDPARAM aId, IDVDImage **aDVDImage);
166
167 STDMETHOD(OpenFloppyImage) (INPTR BSTR aFilePath, INPTR GUIDPARAM aId,
168 IFloppyImage **aFloppyImage);
169 STDMETHOD(RegisterFloppyImage) (IFloppyImage *aFloppyImage);
170 STDMETHOD(GetFloppyImage) (INPTR GUIDPARAM id, IFloppyImage **aFloppyImage);
171 STDMETHOD(FindFloppyImage) (INPTR BSTR aFilePath, IFloppyImage **aFloppyImage);
172 STDMETHOD(GetFloppyImageUsage) (INPTR GUIDPARAM aId,
173 ResourceUsage_T aUsage,
174 BSTR *aMachineIDs);
175 STDMETHOD(UnregisterFloppyImage) (INPTR GUIDPARAM aId, IFloppyImage **aFloppyImage);
176
177 STDMETHOD(GetGuestOSType) (INPTR BSTR aId, IGuestOSType **aType);
178 STDMETHOD(CreateSharedFolder) (INPTR BSTR aName, INPTR BSTR aHostPath, BOOL aWritable);
179 STDMETHOD(RemoveSharedFolder) (INPTR BSTR aName);
180 STDMETHOD(GetNextExtraDataKey) (INPTR BSTR aKey, BSTR *aNextKey, BSTR *aNextValue);
181 STDMETHOD(GetExtraData) (INPTR BSTR aKey, BSTR *aValue);
182 STDMETHOD(SetExtraData) (INPTR BSTR aKey, INPTR BSTR aValue);
183 STDMETHOD(OpenSession) (ISession *aSession, INPTR GUIDPARAM aMachineId);
184 STDMETHOD(OpenRemoteSession) (ISession *aSession, INPTR GUIDPARAM aMachineId,
185 INPTR BSTR aType, INPTR BSTR aEnvironment,
186 IProgress **aProgress);
187 STDMETHOD(OpenExistingSession) (ISession *aSession, INPTR GUIDPARAM aMachineId);
188
189 STDMETHOD(RegisterCallback) (IVirtualBoxCallback *aCallback);
190 STDMETHOD(UnregisterCallback) (IVirtualBoxCallback *aCallback);
191
192 STDMETHOD(WaitForPropertyChange) (INPTR BSTR aWhat, ULONG aTimeout,
193 BSTR *aChanged, BSTR *aValues);
194
195 STDMETHOD(SaveSettings)();
196 STDMETHOD(SaveSettingsWithBackup) (BSTR *aBakFileName);
197
198 /* public methods only for internal purposes */
199
200 HRESULT postEvent (Event *event);
201
202 HRESULT addProgress (IProgress *aProgress);
203 HRESULT removeProgress (INPTR GUIDPARAM aId);
204
205#ifdef RT_OS_WINDOWS
206 typedef DECLCALLBACKPTR (HRESULT, SVCHelperClientFunc)
207 (SVCHlpClient *aClient, Progress *aProgress, void *aUser, int *aVrc);
208 HRESULT startSVCHelperClient (bool aPrivileged,
209 SVCHelperClientFunc aFunc,
210 void *aUser, Progress *aProgress);
211#endif
212
213 void addProcessToReap (RTPROCESS pid);
214 void updateClientWatcher();
215
216 void onMachineStateChange (const Guid &aId, MachineState_T aState);
217 void onMachineDataChange (const Guid &aId);
218 BOOL onExtraDataCanChange(const Guid &aId, INPTR BSTR aKey, INPTR BSTR aValue,
219 Bstr &aError);
220 void onExtraDataChange(const Guid &aId, INPTR BSTR aKey, INPTR BSTR aValue);
221 void onMachineRegistered (const Guid &aId, BOOL aRegistered);
222 void onSessionStateChange (const Guid &aId, SessionState_T aState);
223
224 void onSnapshotTaken (const Guid &aMachineId, const Guid &aSnapshotId);
225 void onSnapshotDiscarded (const Guid &aMachineId, const Guid &aSnapshotId);
226 void onSnapshotChange (const Guid &aMachineId, const Guid &aSnapshotId);
227
228 ComObjPtr <GuestOSType> getUnknownOSType();
229
230 typedef std::vector <ComObjPtr <SessionMachine> > SessionMachineVector;
231 void getOpenedMachines (SessionMachineVector &aVector);
232
233 bool isMachineIdValid (const Guid &aId)
234 {
235 return SUCCEEDED (findMachine (aId, false /* aSetError */, NULL));
236 }
237
238 /// @todo (dmik) remove and make findMachine() public instead
239 // after switching to VirtualBoxBaseNEXT
240 HRESULT getMachine (const Guid &aId, ComObjPtr <Machine> &aMachine,
241 bool aSetError = false)
242 {
243 return findMachine (aId, aSetError, &aMachine);
244 }
245
246 /// @todo (dmik) remove and make findHardDisk() public instead
247 // after switching to VirtualBoxBaseNEXT
248 HRESULT getHardDisk (const Guid &aId, ComObjPtr <HardDisk> &aHardDisk)
249 {
250 return findHardDisk (&aId, NULL, true /* aDoSetError */, &aHardDisk);
251 }
252
253 bool getDVDImageUsage (const Guid &aId, ResourceUsage_T aUsage,
254 Bstr *aMachineIDs = NULL);
255 bool getFloppyImageUsage (const Guid &aId, ResourceUsage_T aUsage,
256 Bstr *aMachineIDs = NULL);
257
258 const ComObjPtr <Host> &host() { return mData.mHost; }
259 const ComObjPtr <SystemProperties> &systemProperties()
260 { return mData.mSystemProperties; }
261#ifdef VBOX_WITH_RESOURCE_USAGE_API
262 const ComObjPtr <PerformanceCollector> &performanceCollector()
263 { return mData.mPerformanceCollector; }
264#endif /* VBOX_WITH_RESOURCE_USAGE_API */
265
266
267 /** Returns the VirtualBox home directory */
268 const Utf8Str &homeDir() { return mData.mHomeDir; }
269
270 void calculateRelativePath (const char *aPath, Utf8Str &aResult);
271
272 enum RHD_Flags { RHD_Internal, RHD_External, RHD_OnStartUp };
273 HRESULT registerHardDisk (HardDisk *aHardDisk, RHD_Flags aFlags);
274 HRESULT unregisterHardDisk (HardDisk *aHardDisk);
275 HRESULT unregisterDiffHardDisk (HardDisk *aHardDisk);
276
277 HRESULT saveSettings();
278 HRESULT updateSettings (const char *aOldPath, const char *aNewPath);
279
280 const Bstr &settingsFileName() { return mData.mCfgFile.mName; }
281
282 class SettingsTreeHelper : public settings::XmlTreeBackend::InputResolver
283 , public settings::XmlTreeBackend::AutoConverter
284 {
285 public:
286
287 // InputResolver interface
288 settings::Input *resolveEntity (const char *aURI, const char *aID);
289
290 // AutoConverter interface
291 bool needsConversion (const settings::Key &aRoot, char **aOldVersion) const;
292 const char *templateUri() const;
293 };
294
295 static HRESULT loadSettingsTree (settings::XmlTreeBackend &aTree,
296 settings::File &aFile,
297 bool aValidate,
298 bool aCatchLoadErrors,
299 bool aAddDefaults,
300 Utf8Str *aFormatVersion = NULL);
301
302 /**
303 * Shortcut to loadSettingsTree (aTree, aFile, true, true, true).
304 *
305 * Used when the settings file is to be loaded for the first time for the
306 * given object in order to recreate it from the stored settings.
307 *
308 * @param aFormatVersion Where to store the current format version of the
309 * loaded settings tree.
310 */
311 static HRESULT loadSettingsTree_FirstTime (settings::XmlTreeBackend &aTree,
312 settings::File &aFile,
313 Utf8Str &aFormatVersion)
314 {
315 return loadSettingsTree (aTree, aFile, true, true, true,
316 &aFormatVersion);
317 }
318
319 /**
320 * Shortcut to loadSettingsTree (aTree, aFile, true, false, true).
321 *
322 * Used when the settings file is loaded again (after it has been fully
323 * checked and validated by #loadSettingsTree_FirstTime()) in order to
324 * look at settings that don't have any representation within object's
325 * data fields.
326 */
327 static HRESULT loadSettingsTree_Again (settings::XmlTreeBackend &aTree,
328 settings::File &aFile)
329 {
330 return loadSettingsTree (aTree, aFile, true, false, true);
331 }
332
333 /**
334 * Shortcut to loadSettingsTree (aTree, aFile, true, false, false).
335 *
336 * Used when the settings file is loaded again (after it has been fully
337 * checked and validated by #loadSettingsTree_FirstTime()) in order to
338 * update some settings and then save them back.
339 */
340 static HRESULT loadSettingsTree_ForUpdate (settings::XmlTreeBackend &aTree,
341 settings::File &aFile)
342 {
343 return loadSettingsTree (aTree, aFile, true, false, false);
344 }
345
346 static HRESULT saveSettingsTree (settings::TreeBackend &aTree,
347 settings::File &aFile,
348 Utf8Str &aFormatVersion);
349
350 static HRESULT backupSettingsFile (const Bstr &aFileName,
351 const Utf8Str &aOldFormat,
352 Bstr &aBakFileName);
353
354 static HRESULT handleUnexpectedExceptions (RT_SRC_POS_DECL);
355
356 /* for VirtualBoxSupportErrorInfoImpl */
357 static const wchar_t *getComponentName() { return L"VirtualBox"; }
358
359private:
360
361 typedef std::list <ComObjPtr <Machine> > MachineList;
362 typedef std::list <ComObjPtr <GuestOSType> > GuestOSTypeList;
363 typedef std::list <ComPtr <IProgress> > ProgressList;
364
365 typedef std::list <ComObjPtr <HardDisk> > HardDiskList;
366 typedef std::list <ComObjPtr <DVDImage> > DVDImageList;
367 typedef std::list <ComObjPtr <FloppyImage> > FloppyImageList;
368 typedef std::list <ComObjPtr <SharedFolder> > SharedFolderList;
369
370 typedef std::map <Guid, ComObjPtr <HardDisk> > HardDiskMap;
371
372 HRESULT findMachine (const Guid &aId, bool aSetError,
373 ComObjPtr <Machine> *machine = NULL);
374
375 HRESULT findHardDisk (const Guid *aId, const BSTR aLocation,
376 bool aSetError, ComObjPtr <HardDisk> *aHardDisk = NULL);
377
378 HRESULT findVirtualDiskImage (const Guid *aId, const BSTR aFilePathFull,
379 bool aSetError, ComObjPtr <HVirtualDiskImage> *aImage = NULL);
380 HRESULT findDVDImage (const Guid *aId, const BSTR aFilePathFull,
381 bool aSetError, ComObjPtr <DVDImage> *aImage = NULL);
382 HRESULT findFloppyImage (const Guid *aId, const BSTR aFilePathFull,
383 bool aSetError, ComObjPtr <FloppyImage> *aImage = NULL);
384
385 HRESULT checkMediaForConflicts (HardDisk *aHardDisk,
386 const Guid *aId, const BSTR aFilePathFull);
387
388 HRESULT loadMachines (const settings::Key &aGlobal);
389 HRESULT loadDisks (const settings::Key &aGlobal);
390 HRESULT loadHardDisks (const settings::Key &aNode);
391
392 HRESULT saveHardDisks (settings::Key &aNode);
393
394 HRESULT registerMachine (Machine *aMachine);
395
396 HRESULT registerDVDImage (DVDImage *aImage, bool aOnStartUp);
397 HRESULT registerFloppyImage (FloppyImage *aImage, bool aOnStartUp);
398
399 HRESULT lockConfig();
400 HRESULT unlockConfig();
401
402 /** @note This method is not thread safe */
403 bool isConfigLocked() { return mData.mCfgFile.mHandle != NIL_RTFILE; }
404
405 /**
406 * Main VirtualBox data structure.
407 * @note |const| members are persistent during lifetime so can be accessed
408 * without locking.
409 */
410 struct Data
411 {
412 Data();
413
414 struct CfgFile
415 {
416 CfgFile() : mHandle (NIL_RTFILE) {}
417
418 const Bstr mName;
419 RTFILE mHandle;
420 };
421
422 // const data members not requiring locking
423 const Utf8Str mHomeDir;
424
425 // const objects not requiring locking
426 const ComObjPtr <Host> mHost;
427 const ComObjPtr <SystemProperties> mSystemProperties;
428#ifdef VBOX_WITH_RESOURCE_USAGE_API
429 const ComObjPtr <PerformanceCollector> mPerformanceCollector;
430#endif /* VBOX_WITH_RESOURCE_USAGE_API */
431
432 CfgFile mCfgFile;
433
434 Utf8Str mSettingsFileVersion;
435
436 MachineList mMachines;
437 GuestOSTypeList mGuestOSTypes;
438
439 ProgressList mProgressOperations;
440 HardDiskList mHardDisks;
441 DVDImageList mDVDImages;
442 FloppyImageList mFloppyImages;
443 SharedFolderList mSharedFolders;
444
445 HardDiskMap mHardDiskMap;
446
447 CallbackList mCallbacks;
448 };
449
450 Data mData;
451
452 /** Client watcher thread data structure */
453 struct ClientWatcherData
454 {
455 ClientWatcherData()
456#if defined(RT_OS_WINDOWS)
457 : mUpdateReq (NULL)
458#elif defined(RT_OS_OS2)
459 : mUpdateReq (NIL_RTSEMEVENT)
460#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
461 : mUpdateReq (NIL_RTSEMEVENT)
462#else
463# error "Port me!"
464#endif
465 , mThread (NIL_RTTHREAD) {}
466
467 // const objects not requiring locking
468#if defined(RT_OS_WINDOWS)
469 const HANDLE mUpdateReq;
470#elif defined(RT_OS_OS2)
471 const RTSEMEVENT mUpdateReq;
472#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
473 const RTSEMEVENT mUpdateReq;
474#else
475# error "Port me!"
476#endif
477 const RTTHREAD mThread;
478
479 typedef std::list <RTPROCESS> ProcessList;
480 ProcessList mProcesses;
481 };
482
483 ClientWatcherData mWatcherData;
484
485 const RTTHREAD mAsyncEventThread;
486 EventQueue * const mAsyncEventQ;
487 /** Lock for calling EventQueue->post() */
488 RWLockHandle mAsyncEventQLock;
489
490 static Bstr sVersion;
491 static Bstr sPackageType;
492 static Bstr sSettingsFormatVersion;
493
494 static DECLCALLBACK(int) ClientWatcher (RTTHREAD thread, void *pvUser);
495 static DECLCALLBACK(int) AsyncEventHandler (RTTHREAD thread, void *pvUser);
496
497#ifdef RT_OS_WINDOWS
498 static DECLCALLBACK(int) SVCHelperClientThread (RTTHREAD aThread, void *aUser);
499#endif
500};
501
502////////////////////////////////////////////////////////////////////////////////
503
504/**
505 * Abstract callback event class to asynchronously call VirtualBox callbacks
506 * on a dedicated event thread. Subclasses reimplement #handleCallback()
507 * to call appropriate IVirtualBoxCallback methods depending on the event
508 * to be dispatched.
509 *
510 * @note The VirtualBox instance passed to the constructor is strongly
511 * referenced, so that the VirtualBox singleton won't be released until the
512 * event gets handled by the event thread.
513 */
514class VirtualBox::CallbackEvent : public Event
515{
516public:
517
518 CallbackEvent (VirtualBox *aVirtualBox) : mVirtualBox (aVirtualBox)
519 {
520 Assert (aVirtualBox);
521 }
522
523 void *handler();
524
525 virtual void handleCallback (const ComPtr <IVirtualBoxCallback> &aCallback) = 0;
526
527private:
528
529 /*
530 * Note that this is a weak ref -- the CallbackEvent handler thread
531 * is bound to the lifetime of the VirtualBox instance, so it's safe.
532 */
533 ComObjPtr <VirtualBox, ComWeakRef> mVirtualBox;
534};
535
536#endif // ____H_VIRTUALBOXIMPL
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