MachineImpl.cpp@ 1713

Last change on this file since 1713 was 1551, checked in by vboxsync, 18 years ago
Mac OS X audio support (only playback).
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1	/** @file
2	*
3	* VirtualBox COM class implementation
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22	#if defined(__WIN__)
23	#elif defined(__LINUX__)
24	#endif
25
26	#ifdef VBOX_WITH_SYS_V_IPC_SESSION_WATCHER
27	# include <errno.h>
28	# include <sys/types.h>
29	# include <sys/stat.h>
30	# include <sys/ipc.h>
31	# include <sys/sem.h>
32	#endif
33
34	#include "VirtualBoxImpl.h"
35	#include "MachineImpl.h"
36	#include "HardDiskImpl.h"
37	#include "HostDVDDriveImpl.h"
38	#include "HostFloppyDriveImpl.h"
39	#include "ProgressImpl.h"
40	#include "HardDiskAttachmentImpl.h"
41	#include "USBControllerImpl.h"
42	#include "HostImpl.h"
43	#include "SystemPropertiesImpl.h"
44	#include "SharedFolderImpl.h"
45	#include "GuestOSTypeImpl.h"
46	#include "VirtualBoxErrorInfoImpl.h"
47
48	#include "USBProxyService.h"
49
50	#include "Logging.h"
51
52	#include <stdio.h>
53	#include <stdlib.h>
54	#include <VBox/err.h>
55	#include <VBox/cfgldr.h>
56	#include <iprt/path.h>
57	#include <iprt/dir.h>
58	#include <iprt/asm.h>
59	#include <iprt/process.h>
60	#include <VBox/param.h>
61
62	#include <algorithm>
63
64	#if defined(__WIN__) \|\| defined(__OS2__)
65	#define HOSTSUFF_EXE ".exe"
66	#else /* !__WIN__ */
67	#define HOSTSUFF_EXE ""
68	#endif /* !__WIN__ */
69
70	// defines / prototypes
71	/////////////////////////////////////////////////////////////////////////////
72
73	/**
74	* Local mutability check macro for Machine implementation only.
75	*/
76	#define CHECK_SETTER() \
77	if (!isMutable()) \
78	return setError (E_ACCESSDENIED, tr ("The machine is not mutable"));
79
80	// globals
81	/////////////////////////////////////////////////////////////////////////////
82
83	/**
84	* @note The template is NOT completely valid according to VBOX_XML_SCHEMA
85	* (when loading a newly created settings file, validation will be turned off)
86	*/
87	static const char DefaultMachineConfig[] =
88	{
89	"<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" RTFILE_LINEFEED
90	"<!-- InnoTek VirtualBox Machine Configuration -->" RTFILE_LINEFEED
91	"<VirtualBox xmlns=\"" VBOX_XML_NAMESPACE "\" "
92	"version=\"" VBOX_XML_VERSION "-" VBOX_XML_PLATFORM "\">" RTFILE_LINEFEED
93	"</VirtualBox>" RTFILE_LINEFEED
94	};
95
96	/**
97	* Progress callback handler for lengthy operations
98	* (corresponds to the FNRTPROGRESS typedef).
99	*
100	* @param uPercentage Completetion precentage (0-100).
101	* @param pvUser Pointer to the Progress instance.
102	*/
103	static DECLCALLBACK(int) progressCallback (unsigned uPercentage, void *pvUser)
104	{
105	Progress progress = static_cast <Progress > (pvUser);
106
107	/* update the progress object */
108	if (progress)
109	progress->notifyProgress (uPercentage);
110
111	return VINF_SUCCESS;
112	}
113
114	/////////////////////////////////////////////////////////////////////////////
115	// Machine::Data structure
116	/////////////////////////////////////////////////////////////////////////////
117
118	Machine::Data::Data()
119	{
120	mRegistered = FALSE;
121	/* mUuid is initialized in Machine::init() */
122
123	mMachineState = MachineState_PoweredOff;
124	RTTIMESPEC time;
125	mLastStateChange = RTTimeSpecGetMilli (RTTimeNow (&time));
126	mCurrentStateModified = TRUE;
127	mHandleCfgFile = NIL_RTFILE;
128
129	mSession.mPid = NIL_RTPROCESS;
130	mSession.mState = SessionState_SessionClosed;
131	}
132
133	Machine::Data::~Data()
134	{
135	}
136
137	/////////////////////////////////////////////////////////////////////////////
138	// Machine::UserData structure
139	/////////////////////////////////////////////////////////////////////////////
140
141	Machine::UserData::UserData()
142	{
143	/* default values for a newly created machine */
144
145	mNameSync = TRUE;
146
147	/* mName, mOSType, mSnapshotFolder, mSnapshotFolderFull are initialized in
148	* Machine::init() */
149	}
150
151	Machine::UserData::~UserData()
152	{
153	}
154
155	/////////////////////////////////////////////////////////////////////////////
156	// Machine::HWData structure
157	/////////////////////////////////////////////////////////////////////////////
158
159	Machine::HWData::HWData()
160	{
161	/* default values for a newly created machine */
162	mMemorySize = 128;
163	mVRAMSize = 8;
164	mHWVirtExEnabled = TriStateBool_False;
165
166	/* default boot order: floppy - DVD - HDD */
167	mBootOrder [0] = DeviceType_FloppyDevice;
168	mBootOrder [1] = DeviceType_DVDDevice;
169	mBootOrder [2] = DeviceType_HardDiskDevice;
170	for (size_t i = 3; i < ELEMENTS (mBootOrder); i++)
171	mBootOrder [i] = DeviceType_NoDevice;
172
173	mClipboardMode = ClipboardMode_ClipDisabled;
174	}
175
176	Machine::HWData::~HWData()
177	{
178	}
179
180	bool Machine::HWData::operator== (const HWData &that) const
181	{
182	if (this == &that)
183	return true;
184
185	if (mMemorySize != that.mMemorySize \|\|
186	mVRAMSize != that.mVRAMSize \|\|
187	mHWVirtExEnabled != that.mHWVirtExEnabled \|\|
188	mClipboardMode != that.mClipboardMode)
189	return false;
190
191	for (size_t i = 0; i < ELEMENTS (mBootOrder); ++ i)
192	if (mBootOrder [i] != that.mBootOrder [i])
193	return false;
194
195	if (mSharedFolders.size() != that.mSharedFolders.size())
196	return false;
197
198	if (mSharedFolders.size() == 0)
199	return true;
200
201	/* Make copies to speed up comparison */
202	SharedFolderList folders = mSharedFolders;
203	SharedFolderList thatFolders = that.mSharedFolders;
204
205	SharedFolderList::iterator it = folders.begin();
206	while (it != folders.end())
207	{
208	bool found = false;
209	SharedFolderList::iterator thatIt = thatFolders.begin();
210	while (thatIt != thatFolders.end())
211	{
212	if ((it)->name() == (thatIt)->name() &&
213	RTPathCompare (Utf8Str ((*it)->hostPath()),
214	Utf8Str ((*thatIt)->hostPath())) == 0)
215	{
216	thatFolders.erase (thatIt);
217	found = true;
218	break;
219	}
220	else
221	++ thatIt;
222	}
223	if (found)
224	it = folders.erase (it);
225	else
226	return false;
227	}
228
229	Assert (folders.size() == 0 && thatFolders.size() == 0);
230
231	return true;
232	}
233
234	/////////////////////////////////////////////////////////////////////////////
235	// Machine::HDData structure
236	/////////////////////////////////////////////////////////////////////////////
237
238	Machine::HDData::HDData()
239	{
240	/* default values for a newly created machine */
241	mHDAttachmentsChanged = false;
242	}
243
244	Machine::HDData::~HDData()
245	{
246	}
247
248	bool Machine::HDData::operator== (const HDData &that) const
249	{
250	if (this == &that)
251	return true;
252
253	if (mHDAttachments.size() != that.mHDAttachments.size())
254	return false;
255
256	if (mHDAttachments.size() == 0)
257	return true;
258
259	/* Make copies to speed up comparison */
260	HDAttachmentList atts = mHDAttachments;
261	HDAttachmentList thatAtts = that.mHDAttachments;
262
263	HDAttachmentList::iterator it = atts.begin();
264	while (it != atts.end())
265	{
266	bool found = false;
267	HDAttachmentList::iterator thatIt = thatAtts.begin();
268	while (thatIt != thatAtts.end())
269	{
270	if ((it)->deviceNumber() == (thatIt)->deviceNumber() &&
271	(it)->controller() == (thatIt)->controller() &&
272	(it)->hardDisk().equalsTo ((thatIt)->hardDisk()))
273	{
274	thatAtts.erase (thatIt);
275	found = true;
276	break;
277	}
278	else
279	++ thatIt;
280	}
281	if (found)
282	it = atts.erase (it);
283	else
284	return false;
285	}
286
287	Assert (atts.size() == 0 && thatAtts.size() == 0);
288
289	return true;
290	}
291
292	/////////////////////////////////////////////////////////////////////////////
293	// Machine class
294	/////////////////////////////////////////////////////////////////////////////
295
296	// constructor / destructor
297	/////////////////////////////////////////////////////////////////////////////
298
299	Machine::Machine() : mType (IsMachine) {}
300
301	Machine::~Machine() {}
302
303	HRESULT Machine::FinalConstruct()
304	{
305	LogFlowThisFunc (("\n"));
306	return S_OK;
307	}
308
309	void Machine::FinalRelease()
310	{
311	LogFlowThisFunc (("\n"));
312	uninit();
313	}
314
315	/**
316	* Initializes the instance.
317	*
318	* @param aParent Associated parent object
319	* @param aConfigFile Local file system path to the VM settings file (can
320	* be relative to the VirtualBox config directory).
321	* @param aMode Init_New, Init_Existing or Init_Registered
322	* @param aName name for the machine when aMode is Init_New
323	* (ignored otherwise)
324	* @param aNameSync \|TRUE\| to authomatically sync settings dir and file
325	* name with the machine name. \|FALSE\| is used for legacy
326	* machines where the file name is specified by the
327	* user and should never change. Used only in Init_New
328	* mode (ignored otherwise).
329	* @param aId UUID of the machine (used only for consistency
330	* check when aMode is Init_Registered; must match UUID
331	* stored in the settings file).
332	*
333	* @return Success indicator. if not S_OK, the machine object is invalid
334	*/
335	HRESULT Machine::init (VirtualBox *aParent, const BSTR aConfigFile,
336	InitMode aMode, const BSTR aName /* = NULL */,
337	BOOL aNameSync /* = TRUE */,
338	const Guid aId / = NULL */)
339	{
340	LogFlowThisFuncEnter();
341	LogFlowThisFunc (("aConfigFile='%ls', aMode=%d\n", aConfigFile, aMode));
342
343	AssertReturn (aParent, E_INVALIDARG);
344	AssertReturn (aConfigFile, E_INVALIDARG);
345	AssertReturn (aMode != Init_New \|\| (aName != NULL && *aName != '\0'),
346	E_INVALIDARG);
347	AssertReturn (aMode != Init_Registered \|\| aId != NULL, E_FAIL);
348
349	/* Enclose the state transition NotReady->InInit->Ready */
350	AutoInitSpan autoInitSpan (this);
351	AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
352
353	HRESULT rc = S_OK;
354
355	/* share the parent weakly */
356	unconst (mParent) = aParent;
357
358	/* register with parent early, since uninit() will unconditionally
359	* unregister on failure */
360	mParent->addDependentChild (this);
361
362	/* create machine data structures */
363	mData.allocate();
364	mSSData.allocate();
365
366	mUserData.allocate();
367	mHWData.allocate();
368	mHDData.allocate();
369
370	char configFileFull [RTPATH_MAX] = {0};
371
372	/* memorize the config file name (as provided) */
373	mData->mConfigFile = aConfigFile;
374
375	/* get the full file name */
376	int vrc = RTPathAbsEx (mParent->homeDir(), Utf8Str (aConfigFile),
377	configFileFull, sizeof (configFileFull));
378	if (VBOX_FAILURE (vrc))
379	return setError (E_FAIL,
380	tr ("Invalid settings file name: '%ls' (%Vrc)"),
381	aConfigFile, vrc);
382	mData->mConfigFileFull = configFileFull;
383
384	mData->mAccessible = TRUE;
385
386	if (aMode != Init_New)
387	{
388	/* lock the settings file */
389	rc = lockConfig();
390
391	if (aMode == Init_Registered && FAILED (rc))
392	{
393	/* If the machine is registered, then, instead of returning a
394	* failure, we mark it as inaccessible and set the result to
395	* success to give it a try later */
396	mData->mAccessible = FALSE;
397	/* fetch the current error info */
398	mData->mAccessError = com::ErrorInfo();
399	LogWarning (("Machine {%Vuuid} is inaccessible! [%ls]\n",
400	mData->mUuid.raw(),
401	mData->mAccessError.getText().raw()));
402	rc = S_OK;
403	}
404	}
405	else
406	{
407	/* check for the file existence */
408	RTFILE f = NIL_RTFILE;
409	int vrc = RTFileOpen (&f, configFileFull, RTFILE_O_READ);
410	if (VBOX_SUCCESS (vrc) \|\| vrc == VERR_SHARING_VIOLATION)
411	{
412	rc = setError (E_FAIL,
413	tr ("Settings file '%s' already exists"), configFileFull);
414	if (VBOX_SUCCESS (vrc))
415	RTFileClose (f);
416	}
417	else
418	{
419	if (vrc != VERR_FILE_NOT_FOUND && vrc != VERR_PATH_NOT_FOUND)
420	rc = setError (E_FAIL,
421	tr ("Invalid settings file name: '%ls' (%Vrc)"),
422	mData->mConfigFileFull.raw(), vrc);
423	}
424	}
425
426	CheckComRCReturnRC (rc);
427
428	/* initialize mOSType */
429	mUserData->mOSType = mParent->getUnknownOSType();
430
431	/* create associated BIOS settings object */
432	unconst (mBIOSSettings).createObject();
433	mBIOSSettings->init(this);
434
435	#ifdef VBOX_VRDP
436	/* create an associated VRDPServer object (default is disabled) */
437	unconst (mVRDPServer).createObject();
438	mVRDPServer->init(this);
439	#endif
440
441	/* create an associated DVD drive object */
442	unconst (mDVDDrive).createObject();
443	mDVDDrive->init (this);
444
445	/* create an associated floppy drive object */
446	unconst (mFloppyDrive).createObject();
447	mFloppyDrive->init (this);
448
449	/* create the audio adapter object (always present, default is disabled) */
450	unconst (mAudioAdapter).createObject();
451	mAudioAdapter->init(this);
452
453	/* create the USB controller object (always present, default is disabled) */
454	unconst (mUSBController).createObject();
455	mUSBController->init(this);
456
457	/* create associated network adapter objects */
458	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
459	{
460	unconst (mNetworkAdapters [slot]).createObject();
461	mNetworkAdapters [slot]->init (this, slot);
462	}
463
464	if (aMode == Init_Registered)
465	{
466	/* store the supplied UUID (will be used to check for UUID consistency
467	* in loadSettings() */
468	unconst (mData->mUuid) = *aId;
469	/* try to load settings only if the settings file is accessible */
470	if (mData->mAccessible)
471	rc = registeredInit();
472	}
473	else
474	{
475	if (aMode != Init_New)
476	{
477	rc = loadSettings (false /* aRegistered */);
478	}
479	else
480	{
481	/* create the machine UUID */
482	unconst (mData->mUuid).create();
483
484	/* memorize the provided new machine's name */
485	mUserData->mName = aName;
486	mUserData->mNameSync = aNameSync;
487
488	/* initialize the default snapshots folder
489	* (note: depends on the name value set above!) */
490	rc = COMSETTER(SnapshotFolder) (NULL);
491	AssertComRC (rc);
492	}
493
494	/* commit all changes made during the initialization */
495	if (SUCCEEDED (rc))
496	commit();
497	}
498
499	/* Confirm a successful initialization when it's the case */
500	if (SUCCEEDED (rc))
501	{
502	if (mData->mAccessible)
503	autoInitSpan.setSucceeded();
504	else
505	autoInitSpan.setLimited();
506	}
507
508	LogFlowThisFunc (("mName='%ls', mRegistered=%RTbool, mAccessible=%RTbool "
509	"rc=%08X\n",
510	mUserData->mName.raw(), mData->mRegistered,
511	mData->mAccessible, rc));
512
513	LogFlowThisFuncLeave();
514
515	return rc;
516	}
517
518	/**
519	* Initializes the registered machine by loading the settings file.
520	* This method is separated from #init() in order to make it possible to
521	* retry the operation after VirtualBox startup instead of refusing to
522	* startup the whole VirtualBox server in case if the settings file of some
523	* registered VM is invalid or inaccessible.
524	*
525	* @note Must be always called from this object's write lock
526	* (unless called from #init() that doesn't need any locking).
527	* @note Locks the mUSBController method for writing.
528	* @note Subclasses must not call this method.
529	*/
530	HRESULT Machine::registeredInit()
531	{
532	AssertReturn (mType == IsMachine, E_FAIL);
533	AssertReturn (!mData->mUuid.isEmpty(), E_FAIL);
534
535	HRESULT rc = S_OK;
536
537	if (!mData->mAccessible)
538	rc = lockConfig();
539
540	/* Temporarily reset the registered flag in order to let setters potentially
541	* called from loadSettings() succeed (isMutable() used in all setters
542	* will return FALSE for a Machine instance if mRegistered is TRUE). */
543	mData->mRegistered = FALSE;
544
545	if (SUCCEEDED (rc))
546	{
547	rc = loadSettings (true /* aRegistered */);
548
549	if (FAILED (rc))
550	unlockConfig();
551	}
552
553	if (SUCCEEDED (rc))
554	{
555	mData->mAccessible = TRUE;
556
557	/* commit all changes made during loading the settings file */
558	commit();
559
560	/* VirtualBox will not call trySetRegistered(), so
561	* inform the USB proxy about all attached USB filters */
562	mUSBController->onMachineRegistered (TRUE);
563	}
564	else
565	{
566	/* If the machine is registered, then, instead of returning a
567	* failure, we mark it as inaccessible and set the result to
568	* success to give it a try later */
569	mData->mAccessible = FALSE;
570	/* fetch the current error info */
571	mData->mAccessError = com::ErrorInfo();
572	LogWarning (("Machine {%Vuuid} is inaccessible! [%ls]\n",
573	mData->mUuid.raw(),
574	mData->mAccessError.getText().raw()));
575
576	/* rollback all changes */
577	rollback (false /* aNotify */);
578
579	rc = S_OK;
580	}
581
582	/* Restore the registered flag (even on failure) */
583	mData->mRegistered = TRUE;
584
585	return rc;
586	}
587
588	/**
589	* Uninitializes the instance.
590	* Called either from FinalRelease() or by the parent when it gets destroyed.
591	*
592	* @note The caller of this method must make sure that this object
593	* a) doesn't have active callers on the current thread and b) is not locked
594	* by the current thread; otherwise uninit() will hang either a) due to
595	* AutoUninitSpan waiting for a number of calls to drop to zero or b) due to
596	* a dead-lock caused by this thread waiting for all callers on the other
597	* threads are are done but preventing them from doing so by holding a lock.
598	*/
599	void Machine::uninit()
600	{
601	LogFlowThisFuncEnter();
602
603	Assert (!isLockedOnCurrentThread());
604
605	/* Enclose the state transition Ready->InUninit->NotReady */
606	AutoUninitSpan autoUninitSpan (this);
607	if (autoUninitSpan.uninitDone())
608	return;
609
610	Assert (mType == IsMachine);
611	Assert (!!mData && !!mUserData && !!mHWData && !!mHDData && !!mSSData);
612
613	LogFlowThisFunc (("initFailed()=%d\n", autoUninitSpan.initFailed()));
614	LogFlowThisFunc (("mRegistered=%d\n", mData->mRegistered));
615
616	/*
617	* Enter this object's lock because there may be a SessionMachine instance
618	* somewhere around, that shares our data and lock but doesn't use our
619	* addCaller()/removeCaller(), and it may be also accessing the same
620	* data members. mParent lock is necessary as well because of
621	* SessionMachine::uninit(), etc.
622	*/
623	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
624
625	if (!mData->mSession.mMachine.isNull())
626	{
627	/*
628	* Theoretically, this can only happen if the VirtualBox server has
629	* been terminated while there were clients running that owned open
630	* direct sessions. Since in this case we are definitely called by
631	* VirtualBox::uninit(), we may be sure that SessionMachine::uninit()
632	* won't happen on the client watcher thread (because it does
633	* VirtualBox::addCaller() for the duration of the
634	* SessionMachine::checkForDeath() call, so that VirtualBox::uninit()
635	* cannot happen until the VirtualBox caller is released). This is
636	* important, because SessionMachine::uninit() cannot correctly operate
637	* after we return from this method (it expects the Machine instance
638	* is still valid). We'll call it ourselves below.
639	*/
640	LogWarningThisFunc (("Session machine is not NULL (%p), "
641	"the direct session is still open!\n",
642	(SessionMachine *) mData->mSession.mMachine));
643
644	if (mData->mMachineState >= MachineState_Running)
645	{
646	LogWarningThisFunc (("Setting state to Aborted!\n"));
647	/* set machine state using SessionMachine reimplementation */
648	static_cast <Machine *> (mData->mSession.mMachine)
649	->setMachineState (MachineState_Aborted);
650	}
651
652	/*
653	* Uninitialize SessionMachine using public uninit() to indicate
654	* an unexpected uninitialization.
655	*/
656	mData->mSession.mMachine->uninit();
657	/* SessionMachine::uninit() must set mSession.mMachine to null */
658	Assert (mData->mSession.mMachine.isNull());
659	}
660
661	/* the lock is no more necessary (SessionMachine is uninitialized) */
662	alock.leave();
663
664	/* make sure the configuration is unlocked */
665	unlockConfig();
666
667	if (isModified())
668	{
669	LogWarningThisFunc (("Discarding unsaved settings changes!\n"));
670	rollback (false /* aNotify */);
671	}
672
673	uninitDataAndChildObjects();
674
675	mParent->removeDependentChild (this);
676
677	LogFlowThisFuncLeave();
678	}
679
680	// IMachine properties
681	/////////////////////////////////////////////////////////////////////////////
682
683	STDMETHODIMP Machine::COMGETTER(Parent) (IVirtualBox **aParent)
684	{
685	if (!aParent)
686	return E_POINTER;
687
688	AutoLimitedCaller autoCaller (this);
689	CheckComRCReturnRC (autoCaller.rc());
690
691	/* mParent is constant during life time, no need to lock */
692	mParent.queryInterfaceTo (aParent);
693
694	return S_OK;
695	}
696
697	STDMETHODIMP Machine::COMGETTER(Accessible) (BOOL *aAccessible)
698	{
699	if (!aAccessible)
700	return E_POINTER;
701
702	AutoLimitedCaller autoCaller (this);
703	CheckComRCReturnRC (autoCaller.rc());
704
705	AutoLock alock (this);
706
707	HRESULT rc = S_OK;
708
709	if (!mData->mAccessible)
710	{
711	/* try to initialize the VM once more if not accessible */
712
713	AutoReadySpan autoReadySpan (this);
714	AssertReturn (autoReadySpan.isOk(), E_FAIL);
715
716	rc = registeredInit();
717
718	if (mData->mAccessible)
719	autoReadySpan.setSucceeded();
720	}
721
722	if (SUCCEEDED (rc))
723	*aAccessible = mData->mAccessible;
724
725	return rc;
726	}
727
728	STDMETHODIMP Machine::COMGETTER(AccessError) (IVirtualBoxErrorInfo **aAccessError)
729	{
730	if (!aAccessError)
731	return E_POINTER;
732
733	AutoLimitedCaller autoCaller (this);
734	CheckComRCReturnRC (autoCaller.rc());
735
736	AutoReaderLock alock (this);
737
738	if (mData->mAccessible \|\| !mData->mAccessError.isBasicAvailable())
739	{
740	/* return shortly */
741	aAccessError = NULL;
742	return S_OK;
743	}
744
745	HRESULT rc = S_OK;
746
747	ComObjPtr <VirtualBoxErrorInfo> errorInfo;
748	rc = errorInfo.createObject();
749	if (SUCCEEDED (rc))
750	{
751	errorInfo->init (mData->mAccessError.getResultCode(),
752	mData->mAccessError.getInterfaceID(),
753	mData->mAccessError.getComponent(),
754	mData->mAccessError.getText());
755	rc = errorInfo.queryInterfaceTo (aAccessError);
756	}
757
758	return rc;
759	}
760
761	STDMETHODIMP Machine::COMGETTER(Name) (BSTR *aName)
762	{
763	if (!aName)
764	return E_POINTER;
765
766	AutoCaller autoCaller (this);
767	CheckComRCReturnRC (autoCaller.rc());
768
769	AutoReaderLock alock (this);
770
771	mUserData->mName.cloneTo (aName);
772
773	return S_OK;
774	}
775
776	STDMETHODIMP Machine::COMSETTER(Name) (INPTR BSTR aName)
777	{
778	if (!aName)
779	return E_INVALIDARG;
780
781	if (!*aName)
782	return setError (E_INVALIDARG,
783	tr ("Machine name cannot be empty"));
784
785	AutoCaller autoCaller (this);
786	CheckComRCReturnRC (autoCaller.rc());
787
788	AutoLock alock (this);
789
790	CHECK_SETTER();
791
792	mUserData.backup();
793	mUserData->mName = aName;
794
795	return S_OK;
796	}
797
798	STDMETHODIMP Machine::COMGETTER(Description) (BSTR *aDescription)
799	{
800	if (!aDescription)
801	return E_POINTER;
802
803	AutoCaller autoCaller (this);
804	CheckComRCReturnRC (autoCaller.rc());
805
806	AutoReaderLock alock (this);
807
808	mUserData->mDescription.cloneTo (aDescription);
809
810	return S_OK;
811	}
812
813	STDMETHODIMP Machine::COMSETTER(Description) (INPTR BSTR aDescription)
814	{
815	AutoCaller autoCaller (this);
816	CheckComRCReturnRC (autoCaller.rc());
817
818	AutoLock alock (this);
819
820	CHECK_SETTER();
821
822	mUserData.backup();
823	mUserData->mDescription = aDescription;
824
825	return S_OK;
826	}
827
828	STDMETHODIMP Machine::COMGETTER(Id) (GUIDPARAMOUT aId)
829	{
830	if (!aId)
831	return E_POINTER;
832
833	AutoLimitedCaller autoCaller (this);
834	CheckComRCReturnRC (autoCaller.rc());
835
836	AutoReaderLock alock (this);
837
838	mData->mUuid.cloneTo (aId);
839
840	return S_OK;
841	}
842
843	STDMETHODIMP Machine::COMGETTER(OSType) (IGuestOSType **aOSType)
844	{
845	if (!aOSType)
846	return E_POINTER;
847
848	AutoCaller autoCaller (this);
849	CheckComRCReturnRC (autoCaller.rc());
850
851	AutoReaderLock alock (this);
852
853	mUserData->mOSType.queryInterfaceTo (aOSType);
854
855	return S_OK;
856	}
857
858	STDMETHODIMP Machine::COMSETTER(OSType) (IGuestOSType *aOSType)
859	{
860	if (!aOSType)
861	return E_INVALIDARG;
862
863	AutoCaller autoCaller (this);
864	CheckComRCReturnRC (autoCaller.rc());
865
866	AutoLock alock (this);
867
868	CHECK_SETTER();
869
870	mUserData.backup();
871	mUserData->mOSType = aOSType;
872
873	return S_OK;
874	}
875
876	STDMETHODIMP Machine::COMGETTER(MemorySize) (ULONG *memorySize)
877	{
878	if (!memorySize)
879	return E_POINTER;
880
881	AutoCaller autoCaller (this);
882	CheckComRCReturnRC (autoCaller.rc());
883
884	AutoReaderLock alock (this);
885
886	*memorySize = mHWData->mMemorySize;
887
888	return S_OK;
889	}
890
891	STDMETHODIMP Machine::COMSETTER(MemorySize) (ULONG memorySize)
892	{
893	/* check RAM limits */
894	if (memorySize < SchemaDefs::MinGuestRAM \|\|
895	memorySize > SchemaDefs::MaxGuestRAM)
896	return setError (E_INVALIDARG,
897	tr ("Invalid RAM size: %lu MB (must be in range [%lu, %lu] MB)"),
898	memorySize, SchemaDefs::MinGuestRAM, SchemaDefs::MaxGuestRAM);
899
900	AutoCaller autoCaller (this);
901	CheckComRCReturnRC (autoCaller.rc());
902
903	AutoLock alock (this);
904
905	CHECK_SETTER();
906
907	mHWData.backup();
908	mHWData->mMemorySize = memorySize;
909
910	return S_OK;
911	}
912
913	STDMETHODIMP Machine::COMGETTER(VRAMSize) (ULONG *memorySize)
914	{
915	if (!memorySize)
916	return E_POINTER;
917
918	AutoCaller autoCaller (this);
919	CheckComRCReturnRC (autoCaller.rc());
920
921	AutoReaderLock alock (this);
922
923	*memorySize = mHWData->mVRAMSize;
924
925	return S_OK;
926	}
927
928	STDMETHODIMP Machine::COMSETTER(VRAMSize) (ULONG memorySize)
929	{
930	/* check VRAM limits */
931	if (memorySize < SchemaDefs::MinGuestVRAM \|\|
932	memorySize > SchemaDefs::MaxGuestVRAM)
933	return setError (E_INVALIDARG,
934	tr ("Invalid VRAM size: %lu MB (must be in range [%lu, %lu] MB)"),
935	memorySize, SchemaDefs::MinGuestVRAM, SchemaDefs::MaxGuestVRAM);
936
937	AutoCaller autoCaller (this);
938	CheckComRCReturnRC (autoCaller.rc());
939
940	AutoLock alock (this);
941
942	CHECK_SETTER();
943
944	mHWData.backup();
945	mHWData->mVRAMSize = memorySize;
946
947	return S_OK;
948	}
949
950	STDMETHODIMP Machine::COMGETTER(BIOSSettings)(IBIOSSettings **biosSettings)
951	{
952	if (!biosSettings)
953	return E_POINTER;
954
955	AutoCaller autoCaller (this);
956	CheckComRCReturnRC (autoCaller.rc());
957
958	/* mBIOSSettings is constant during life time, no need to lock */
959	mBIOSSettings.queryInterfaceTo (biosSettings);
960
961	return S_OK;
962	}
963
964	STDMETHODIMP Machine::COMGETTER(HWVirtExEnabled)(TriStateBool_T *enabled)
965	{
966	if (!enabled)
967	return E_POINTER;
968
969	AutoCaller autoCaller (this);
970	CheckComRCReturnRC (autoCaller.rc());
971
972	AutoReaderLock alock (this);
973
974	*enabled = mHWData->mHWVirtExEnabled;
975
976	return S_OK;
977	}
978
979	STDMETHODIMP Machine::COMSETTER(HWVirtExEnabled)(TriStateBool_T enable)
980	{
981	AutoCaller autoCaller (this);
982	CheckComRCReturnRC (autoCaller.rc());
983
984	AutoLock alock (this);
985
986	CHECK_SETTER();
987
988	/** @todo check validity! */
989
990	mHWData.backup();
991	mHWData->mHWVirtExEnabled = enable;
992
993	return S_OK;
994	}
995
996	STDMETHODIMP Machine::COMGETTER(SnapshotFolder) (BSTR *aSnapshotFolder)
997	{
998	if (!aSnapshotFolder)
999	return E_POINTER;
1000
1001	AutoCaller autoCaller (this);
1002	CheckComRCReturnRC (autoCaller.rc());
1003
1004	AutoReaderLock alock (this);
1005
1006	mUserData->mSnapshotFolderFull.cloneTo (aSnapshotFolder);
1007
1008	return S_OK;
1009	}
1010
1011	STDMETHODIMP Machine::COMSETTER(SnapshotFolder) (INPTR BSTR aSnapshotFolder)
1012	{
1013	/// @todo (r=dmik):
1014	// 1. Allow to change the name of the snapshot folder containing snapshots
1015	// 2. Rename the folder on disk instead of just changing the property
1016	// value (to be smart and not to leave garbage). Note that it cannot be
1017	// done here because the change may be rolled back. Thus, the right
1018	// place is #saveSettings().
1019
1020	AutoCaller autoCaller (this);
1021	CheckComRCReturnRC (autoCaller.rc());
1022
1023	AutoLock alock (this);
1024
1025	CHECK_SETTER();
1026
1027	if (!mData->mCurrentSnapshot.isNull())
1028	return setError (E_FAIL,
1029	tr ("The snapshot folder of a machine with snapshots cannot "
1030	"be changed (please discard all snapshots first)"));
1031
1032	Utf8Str snapshotFolder = aSnapshotFolder;
1033
1034	if (snapshotFolder.isEmpty())
1035	{
1036	if (isInOwnDir())
1037	{
1038	/* the default snapshots folder is 'Snapshots' in the machine dir */
1039	snapshotFolder = Utf8Str ("Snapshots");
1040	}
1041	else
1042	{
1043	/* the default snapshots folder is {UUID}, for backwards
1044	* compatibility and to resolve conflicts */
1045	snapshotFolder = Utf8StrFmt ("{%Vuuid}", mData->mUuid.raw());
1046	}
1047	}
1048
1049	int vrc = calculateFullPath (snapshotFolder, snapshotFolder);
1050	if (VBOX_FAILURE (vrc))
1051	return setError (E_FAIL,
1052	tr ("Invalid snapshot folder: '%ls' (%Vrc)"),
1053	aSnapshotFolder, vrc);
1054
1055	mUserData.backup();
1056	mUserData->mSnapshotFolder = aSnapshotFolder;
1057	mUserData->mSnapshotFolderFull = snapshotFolder;
1058
1059	return S_OK;
1060	}
1061
1062	STDMETHODIMP Machine::COMGETTER(HardDiskAttachments) (IHardDiskAttachmentCollection **attachments)
1063	{
1064	if (!attachments)
1065	return E_POINTER;
1066
1067	AutoCaller autoCaller (this);
1068	CheckComRCReturnRC (autoCaller.rc());
1069
1070	AutoReaderLock alock (this);
1071
1072	ComObjPtr <HardDiskAttachmentCollection> collection;
1073	collection.createObject();
1074	collection->init (mHDData->mHDAttachments);
1075	collection.queryInterfaceTo (attachments);
1076
1077	return S_OK;
1078	}
1079
1080	STDMETHODIMP Machine::COMGETTER(VRDPServer)(IVRDPServer **vrdpServer)
1081	{
1082	#ifdef VBOX_VRDP
1083	if (!vrdpServer)
1084	return E_POINTER;
1085
1086	AutoCaller autoCaller (this);
1087	CheckComRCReturnRC (autoCaller.rc());
1088
1089	AutoReaderLock alock (this);
1090
1091	Assert (!!mVRDPServer);
1092	mVRDPServer.queryInterfaceTo (vrdpServer);
1093
1094	return S_OK;
1095	#else
1096	return E_NOTIMPL;
1097	#endif
1098	}
1099
1100	STDMETHODIMP Machine::COMGETTER(DVDDrive) (IDVDDrive **dvdDrive)
1101	{
1102	if (!dvdDrive)
1103	return E_POINTER;
1104
1105	AutoCaller autoCaller (this);
1106	CheckComRCReturnRC (autoCaller.rc());
1107
1108	AutoReaderLock alock (this);
1109
1110	Assert (!!mDVDDrive);
1111	mDVDDrive.queryInterfaceTo (dvdDrive);
1112	return S_OK;
1113	}
1114
1115	STDMETHODIMP Machine::COMGETTER(FloppyDrive) (IFloppyDrive **floppyDrive)
1116	{
1117	if (!floppyDrive)
1118	return E_POINTER;
1119
1120	AutoCaller autoCaller (this);
1121	CheckComRCReturnRC (autoCaller.rc());
1122
1123	AutoReaderLock alock (this);
1124
1125	Assert (!!mFloppyDrive);
1126	mFloppyDrive.queryInterfaceTo (floppyDrive);
1127	return S_OK;
1128	}
1129
1130	STDMETHODIMP Machine::COMGETTER(AudioAdapter)(IAudioAdapter **audioAdapter)
1131	{
1132	if (!audioAdapter)
1133	return E_POINTER;
1134
1135	AutoCaller autoCaller (this);
1136	CheckComRCReturnRC (autoCaller.rc());
1137
1138	AutoReaderLock alock (this);
1139
1140	mAudioAdapter.queryInterfaceTo (audioAdapter);
1141	return S_OK;
1142	}
1143
1144	STDMETHODIMP Machine::COMGETTER(USBController)(IUSBController * *a_ppUSBController)
1145	{
1146	#ifdef VBOX_WITH_USB
1147	if (!a_ppUSBController)
1148	return E_POINTER;
1149
1150	AutoCaller autoCaller (this);
1151	CheckComRCReturnRC (autoCaller.rc());
1152
1153	HRESULT rc = mParent->host()->checkUSBProxyService();
1154	CheckComRCReturnRC (rc);
1155
1156	AutoReaderLock alock (this);
1157
1158	mUSBController.queryInterfaceTo (a_ppUSBController);
1159	return S_OK;
1160	#else
1161	/* Note: The GUI depends on this method returning E_NOTIMPL with no
1162	* extended error info to indicate that USB is simply not available
1163	* (w/o treting it as a failure), for example, as in OSE */
1164	return E_NOTIMPL;
1165	#endif
1166	}
1167
1168	STDMETHODIMP Machine::COMGETTER(SettingsFilePath) (BSTR *filePath)
1169	{
1170	if (!filePath)
1171	return E_POINTER;
1172
1173	AutoLimitedCaller autoCaller (this);
1174	CheckComRCReturnRC (autoCaller.rc());
1175
1176	AutoReaderLock alock (this);
1177
1178	mData->mConfigFileFull.cloneTo (filePath);
1179	return S_OK;
1180	}
1181
1182	STDMETHODIMP Machine::COMGETTER(SettingsModified) (BOOL *modified)
1183	{
1184	if (!modified)
1185	return E_POINTER;
1186
1187	AutoCaller autoCaller (this);
1188	CheckComRCReturnRC (autoCaller.rc());
1189
1190	AutoLock alock (this);
1191
1192	CHECK_SETTER();
1193
1194	if (!isConfigLocked())
1195	{
1196	/*
1197	* if we're ready and isConfigLocked() is FALSE then it means
1198	* that no config file exists yet, so always return TRUE
1199	*/
1200	*modified = TRUE;
1201	}
1202	else
1203	{
1204	*modified = isModified();
1205	}
1206
1207	return S_OK;
1208	}
1209
1210	STDMETHODIMP Machine::COMGETTER(SessionState) (SessionState_T *aSessionState)
1211	{
1212	if (!aSessionState)
1213	return E_POINTER;
1214
1215	AutoCaller autoCaller (this);
1216	CheckComRCReturnRC (autoCaller.rc());
1217
1218	AutoReaderLock alock (this);
1219
1220	*aSessionState = mData->mSession.mState;
1221
1222	return S_OK;
1223	}
1224
1225	STDMETHODIMP Machine::COMGETTER(SessionType) (BSTR *aSessionType)
1226	{
1227	if (!aSessionType)
1228	return E_POINTER;
1229
1230	AutoCaller autoCaller (this);
1231	CheckComRCReturnRC (autoCaller.rc());
1232
1233	AutoReaderLock alock (this);
1234
1235	mData->mSession.mType.cloneTo (aSessionType);
1236
1237	return S_OK;
1238	}
1239
1240	STDMETHODIMP Machine::COMGETTER(SessionPid) (ULONG *aSessionPid)
1241	{
1242	if (!aSessionPid)
1243	return E_POINTER;
1244
1245	AutoCaller autoCaller (this);
1246	CheckComRCReturnRC (autoCaller.rc());
1247
1248	AutoReaderLock alock (this);
1249
1250	*aSessionPid = mData->mSession.mPid;
1251
1252	return S_OK;
1253	}
1254
1255	STDMETHODIMP Machine::COMGETTER(State) (MachineState_T *machineState)
1256	{
1257	if (!machineState)
1258	return E_POINTER;
1259
1260	AutoCaller autoCaller (this);
1261	CheckComRCReturnRC (autoCaller.rc());
1262
1263	AutoReaderLock alock (this);
1264
1265	*machineState = mData->mMachineState;
1266
1267	return S_OK;
1268	}
1269
1270	STDMETHODIMP Machine::COMGETTER(LastStateChange) (LONG64 *aLastStateChange)
1271	{
1272	if (!aLastStateChange)
1273	return E_POINTER;
1274
1275	AutoCaller autoCaller (this);
1276	CheckComRCReturnRC (autoCaller.rc());
1277
1278	AutoReaderLock alock (this);
1279
1280	*aLastStateChange = mData->mLastStateChange;
1281
1282	return S_OK;
1283	}
1284
1285	STDMETHODIMP Machine::COMGETTER(StateFilePath) (BSTR *aStateFilePath)
1286	{
1287	if (!aStateFilePath)
1288	return E_POINTER;
1289
1290	AutoCaller autoCaller (this);
1291	CheckComRCReturnRC (autoCaller.rc());
1292
1293	AutoReaderLock alock (this);
1294
1295	mSSData->mStateFilePath.cloneTo (aStateFilePath);
1296
1297	return S_OK;
1298	}
1299
1300	STDMETHODIMP Machine::COMGETTER(CurrentSnapshot) (ISnapshot **aCurrentSnapshot)
1301	{
1302	if (!aCurrentSnapshot)
1303	return E_POINTER;
1304
1305	AutoCaller autoCaller (this);
1306	CheckComRCReturnRC (autoCaller.rc());
1307
1308	AutoReaderLock alock (this);
1309
1310	mData->mCurrentSnapshot.queryInterfaceTo (aCurrentSnapshot);
1311
1312	return S_OK;
1313	}
1314
1315	STDMETHODIMP Machine::COMGETTER(SnapshotCount) (ULONG *aSnapshotCount)
1316	{
1317	if (!aSnapshotCount)
1318	return E_POINTER;
1319
1320	AutoCaller autoCaller (this);
1321	CheckComRCReturnRC (autoCaller.rc());
1322
1323	AutoReaderLock alock (this);
1324
1325	*aSnapshotCount = !mData->mFirstSnapshot ? 0 :
1326	mData->mFirstSnapshot->descendantCount() + 1 /* self */;
1327
1328	return S_OK;
1329	}
1330
1331	STDMETHODIMP Machine::COMGETTER(CurrentStateModified) (BOOL *aCurrentStateModified)
1332	{
1333	if (!aCurrentStateModified)
1334	return E_POINTER;
1335
1336	AutoCaller autoCaller (this);
1337	CheckComRCReturnRC (autoCaller.rc());
1338
1339	AutoReaderLock alock (this);
1340
1341	/*
1342	* Note: for machines with no snapshots, we always return FALSE
1343	* (mData->mCurrentStateModified will be TRUE in this case, for historical
1344	* reasons :)
1345	*/
1346
1347	*aCurrentStateModified = !mData->mFirstSnapshot ? FALSE :
1348	mData->mCurrentStateModified;
1349
1350	return S_OK;
1351	}
1352
1353	STDMETHODIMP
1354	Machine::COMGETTER(SharedFolders) (ISharedFolderCollection **aSharedFolders)
1355	{
1356	if (!aSharedFolders)
1357	return E_POINTER;
1358
1359	AutoCaller autoCaller (this);
1360	CheckComRCReturnRC (autoCaller.rc());
1361
1362	AutoReaderLock alock (this);
1363
1364	ComObjPtr <SharedFolderCollection> coll;
1365	coll.createObject();
1366	coll->init (mHWData->mSharedFolders);
1367	coll.queryInterfaceTo (aSharedFolders);
1368
1369	return S_OK;
1370	}
1371
1372	STDMETHODIMP
1373	Machine::COMGETTER(ClipboardMode) (ClipboardMode_T *aClipboardMode)
1374	{
1375	if (!aClipboardMode)
1376	return E_POINTER;
1377
1378	AutoCaller autoCaller (this);
1379	CheckComRCReturnRC (autoCaller.rc());
1380
1381	AutoReaderLock alock (this);
1382
1383	*aClipboardMode = mHWData->mClipboardMode;
1384
1385	return S_OK;
1386	}
1387
1388	STDMETHODIMP
1389	Machine::COMSETTER(ClipboardMode) (ClipboardMode_T aClipboardMode)
1390	{
1391	AutoCaller autoCaller (this);
1392	CheckComRCReturnRC (autoCaller.rc());
1393
1394	AutoLock alock (this);
1395
1396	CHECK_SETTER();
1397
1398	mHWData.backup();
1399	mHWData->mClipboardMode = aClipboardMode;
1400
1401	return S_OK;
1402	}
1403
1404	// IMachine methods
1405	/////////////////////////////////////////////////////////////////////////////
1406
1407	STDMETHODIMP Machine::SetBootOrder (ULONG aPosition, DeviceType_T aDevice)
1408	{
1409	if (aPosition < 1 \|\| aPosition > SchemaDefs::MaxBootPosition)
1410	return setError (E_INVALIDARG,
1411	tr ("Invalid boot position: %lu (must be in range [1, %lu])"),
1412	aPosition, SchemaDefs::MaxBootPosition);
1413
1414	if (aDevice == DeviceType_USBDevice)
1415	return setError (E_FAIL,
1416	tr ("Booting from USB devices is not currently supported"));
1417
1418	AutoCaller autoCaller (this);
1419	CheckComRCReturnRC (autoCaller.rc());
1420
1421	AutoLock alock (this);
1422
1423	CHECK_SETTER();
1424
1425	mHWData.backup();
1426	mHWData->mBootOrder [aPosition - 1] = aDevice;
1427
1428	return S_OK;
1429	}
1430
1431	STDMETHODIMP Machine::GetBootOrder (ULONG aPosition, DeviceType_T *aDevice)
1432	{
1433	if (aPosition < 1 \|\| aPosition > SchemaDefs::MaxBootPosition)
1434	return setError (E_INVALIDARG,
1435	tr ("Invalid boot position: %lu (must be in range [1, %lu])"),
1436	aPosition, SchemaDefs::MaxBootPosition);
1437
1438	AutoCaller autoCaller (this);
1439	CheckComRCReturnRC (autoCaller.rc());
1440
1441	AutoReaderLock alock (this);
1442
1443	*aDevice = mHWData->mBootOrder [aPosition - 1];
1444
1445	return S_OK;
1446	}
1447
1448	STDMETHODIMP Machine::AttachHardDisk (INPTR GUIDPARAM aId,
1449	DiskControllerType_T aCtl, LONG aDev)
1450	{
1451	Guid id = aId;
1452
1453	if (id.isEmpty() \|\|
1454	aCtl == DiskControllerType_InvalidController \|\|
1455	aDev < 0 \|\| aDev > 1)
1456	return E_INVALIDARG;
1457
1458	AutoCaller autoCaller (this);
1459	CheckComRCReturnRC (autoCaller.rc());
1460
1461	AutoLock alock (this);
1462
1463	CHECK_SETTER();
1464
1465	if (!mData->mRegistered)
1466	return setError (E_FAIL,
1467	tr ("Cannot attach hard disks to an unregistered machine"));
1468
1469	AssertReturn (mData->mMachineState != MachineState_Saved, E_FAIL);
1470
1471	if (mData->mMachineState >= MachineState_Running)
1472	return setError (E_FAIL,
1473	tr ("Invalid machine state: %d"), mData->mMachineState);
1474
1475	/* see if the device on the controller is already busy */
1476	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
1477	it != mHDData->mHDAttachments.end(); ++ it)
1478	{
1479	ComObjPtr <HardDiskAttachment> hda = *it;
1480	if (hda->controller() == aCtl && hda->deviceNumber() == aDev)
1481	{
1482	ComObjPtr <HardDisk> hd = hda->hardDisk();
1483	AutoLock hdLock (hd);
1484	return setError (E_FAIL,
1485	tr ("Hard disk '%ls' is already attached to device slot %d "
1486	"on controller %d"),
1487	hd->toString().raw(), aDev, aCtl);
1488	}
1489	}
1490
1491	/* find a hard disk by UUID */
1492	ComObjPtr <HardDisk> hd;
1493	HRESULT rc = mParent->getHardDisk (id, hd);
1494	if (FAILED (rc))
1495	return rc;
1496
1497	AutoLock hdLock (hd);
1498
1499	if (hd->isDifferencing())
1500	return setError (E_FAIL,
1501	tr ("Cannot attach the differencing hard disk '%ls'"),
1502	hd->toString().raw());
1503
1504	bool dirty = false;
1505
1506	switch (hd->type())
1507	{
1508	case HardDiskType_ImmutableHardDisk:
1509	{
1510	Assert (hd->machineId().isEmpty());
1511	/*
1512	* increase readers to protect from unregistration
1513	* until rollback()/commit() is done
1514	*/
1515	hd->addReader();
1516	Log3 (("A: %ls proteced\n", hd->toString().raw()));
1517	dirty = true;
1518	break;
1519	}
1520	case HardDiskType_WritethroughHardDisk:
1521	{
1522	Assert (hd->children().size() == 0);
1523	Assert (hd->snapshotId().isEmpty());
1524	/* fall through */
1525	}
1526	case HardDiskType_NormalHardDisk:
1527	{
1528	if (hd->machineId().isEmpty())
1529	{
1530	/* attach directly */
1531	hd->setMachineId (mData->mUuid);
1532	Log3 (("A: %ls associated with %Vuuid\n",
1533	hd->toString().raw(), mData->mUuid.raw()));
1534	dirty = true;
1535	}
1536	else
1537	{
1538	/* determine what the hard disk is already attached to */
1539	if (hd->snapshotId().isEmpty())
1540	{
1541	/* attached to some VM in its current state */
1542	if (hd->machineId() == mData->mUuid)
1543	{
1544	/*
1545	* attached to us, either in the backed up list of the
1546	* attachments or in the current one; the former is ok
1547	* (reattachment takes place within the same
1548	* "transaction") the latter is an error so check for it
1549	*/
1550	for (HDData::HDAttachmentList::const_iterator it =
1551	mHDData->mHDAttachments.begin();
1552	it != mHDData->mHDAttachments.end(); ++ it)
1553	{
1554	if ((*it)->hardDisk().equalsTo (hd))
1555	{
1556	return setError (E_FAIL,
1557	tr ("Normal/Writethrough hard disk '%ls' is "
1558	"currently attached to device slot %d "
1559	"on controller %d of this machine"),
1560	hd->toString().raw(),
1561	(it)->deviceNumber(), (it)->controller());
1562	}
1563	}
1564	/*
1565	* dirty = false to indicate we didn't set machineId
1566	* and prevent it from being reset in DetachHardDisk()
1567	*/
1568	Log3 (("A: %ls found in old\n", hd->toString().raw()));
1569	}
1570	else
1571	{
1572	/* attached to other VM */
1573	return setError (E_FAIL,
1574	tr ("Normal/Writethrough hard disk '%ls' is "
1575	"currently attached to a machine with "
1576	"UUID {%Vuuid}"),
1577	hd->toString().raw(), hd->machineId().raw());
1578	}
1579	}
1580	else
1581	{
1582	/*
1583	* here we go when the HardDiskType_NormalHardDisk
1584	* is attached to some VM (probably to this one, too)
1585	* at some particular snapshot, so we can create a diff
1586	* based on it
1587	*/
1588	Assert (!hd->machineId().isEmpty());
1589	/*
1590	* increase readers to protect from unregistration
1591	* until rollback()/commit() is done
1592	*/
1593	hd->addReader();
1594	Log3 (("A: %ls proteced\n", hd->toString().raw()));
1595	dirty = true;
1596	}
1597	}
1598
1599	break;
1600	}
1601	}
1602
1603	ComObjPtr <HardDiskAttachment> attachment;
1604	attachment.createObject();
1605	attachment->init (hd, aCtl, aDev, dirty);
1606
1607	mHDData.backup();
1608	mHDData->mHDAttachments.push_back (attachment);
1609	Log3 (("A: %ls attached\n", hd->toString().raw()));
1610
1611	/* note: diff images are actually created only in commit() */
1612
1613	return S_OK;
1614	}
1615
1616	STDMETHODIMP Machine::GetHardDisk (DiskControllerType_T aCtl,
1617	LONG aDev, IHardDisk **aHardDisk)
1618	{
1619	if (aCtl == DiskControllerType_InvalidController \|\|
1620	aDev < 0 \|\| aDev > 1)
1621	return E_INVALIDARG;
1622
1623	AutoCaller autoCaller (this);
1624	CheckComRCReturnRC (autoCaller.rc());
1625
1626	AutoReaderLock alock (this);
1627
1628	*aHardDisk = NULL;
1629
1630	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
1631	it != mHDData->mHDAttachments.end(); ++ it)
1632	{
1633	ComObjPtr <HardDiskAttachment> hda = *it;
1634	if (hda->controller() == aCtl && hda->deviceNumber() == aDev)
1635	{
1636	hda->hardDisk().queryInterfaceTo (aHardDisk);
1637	return S_OK;
1638	}
1639	}
1640
1641	return setError (E_INVALIDARG,
1642	tr ("No hard disk attached to device slot %d on controller %d"),
1643	aDev, aCtl);
1644	}
1645
1646	STDMETHODIMP Machine::DetachHardDisk (DiskControllerType_T aCtl, LONG aDev)
1647	{
1648	if (aCtl == DiskControllerType_InvalidController \|\|
1649	aDev < 0 \|\| aDev > 1)
1650	return E_INVALIDARG;
1651
1652	AutoCaller autoCaller (this);
1653	CheckComRCReturnRC (autoCaller.rc());
1654
1655	AutoLock alock (this);
1656
1657	CHECK_SETTER();
1658
1659	AssertReturn (mData->mMachineState != MachineState_Saved, E_FAIL);
1660
1661	if (mData->mMachineState >= MachineState_Running)
1662	return setError (E_FAIL,
1663	tr ("Invalid machine state: %d"), mData->mMachineState);
1664
1665	for (HDData::HDAttachmentList::iterator it = mHDData->mHDAttachments.begin();
1666	it != mHDData->mHDAttachments.end(); ++ it)
1667	{
1668	ComObjPtr <HardDiskAttachment> hda = *it;
1669	if (hda->controller() == aCtl && hda->deviceNumber() == aDev)
1670	{
1671	ComObjPtr <HardDisk> hd = hda->hardDisk();
1672	AutoLock hdLock (hd);
1673
1674	ComAssertRet (hd->children().size() == 0 &&
1675	hd->machineId() == mData->mUuid, E_FAIL);
1676
1677	if (hda->isDirty())
1678	{
1679	switch (hd->type())
1680	{
1681	case HardDiskType_ImmutableHardDisk:
1682	{
1683	/* decrease readers increased in AttachHardDisk() */
1684	hd->releaseReader();
1685	Log3 (("D: %ls released\n", hd->toString().raw()));
1686	break;
1687	}
1688	case HardDiskType_WritethroughHardDisk:
1689	{
1690	/* deassociate from this machine */
1691	hd->setMachineId (Guid());
1692	Log3 (("D: %ls deassociated\n", hd->toString().raw()));
1693	break;
1694	}
1695	case HardDiskType_NormalHardDisk:
1696	{
1697	if (hd->snapshotId().isEmpty())
1698	{
1699	/* deassociate from this machine */
1700	hd->setMachineId (Guid());
1701	Log3 (("D: %ls deassociated\n", hd->toString().raw()));
1702	}
1703	else
1704	{
1705	/* decrease readers increased in AttachHardDisk() */
1706	hd->releaseReader();
1707	Log3 (("%ls released\n", hd->toString().raw()));
1708	}
1709
1710	break;
1711	}
1712	}
1713	}
1714
1715	mHDData.backup();
1716	/*
1717	* we cannot use erase (it) below because backup() above will create
1718	* a copy of the list and make this copy active, but the iterator
1719	* still refers to the original and is not valid for a copy
1720	*/
1721	mHDData->mHDAttachments.remove (hda);
1722	Log3 (("D: %ls detached\n", hd->toString().raw()));
1723
1724	/*
1725	* note: Non-dirty hard disks are actually deassociated
1726	* and diff images are deleted only in commit()
1727	*/
1728
1729	return S_OK;
1730	}
1731	}
1732
1733	return setError (E_INVALIDARG,
1734	tr ("No hard disk attached to device slot %d on controller %d"),
1735	aDev, aCtl);
1736	}
1737
1738	STDMETHODIMP Machine::GetNetworkAdapter (ULONG slot, INetworkAdapter **adapter)
1739	{
1740	if (!adapter)
1741	return E_POINTER;
1742	if (slot >= ELEMENTS (mNetworkAdapters))
1743	return setError (E_INVALIDARG, tr ("Invalid slot number: %d"), slot);
1744
1745	AutoCaller autoCaller (this);
1746	CheckComRCReturnRC (autoCaller.rc());
1747
1748	AutoReaderLock alock (this);
1749
1750	mNetworkAdapters [slot].queryInterfaceTo (adapter);
1751
1752	return S_OK;
1753	}
1754
1755	/**
1756	* Returns the extra data key name following the given key. If the key
1757	* is not found, an error is returned. If NULL is supplied, the first
1758	* key will be returned. If key is the last item, NULL will be returned.
1759	*
1760	* @returns COM status code
1761	* @param key extra data key name
1762	* @param nextKey name of the key following "key". NULL if "key" is the last.
1763	* @param nextValue value of the key following "key". Optional parameter.
1764	*/
1765	STDMETHODIMP Machine::GetNextExtraDataKey(INPTR BSTR key, BSTR nextKey, BSTR nextValue)
1766	{
1767	if (!nextKey)
1768	return E_POINTER;
1769
1770	AutoCaller autoCaller (this);
1771	CheckComRCReturnRC (autoCaller.rc());
1772
1773	AutoReaderLock alock (this);
1774
1775	/* start with nothing found */
1776	*nextKey = NULL;
1777
1778	/*
1779	* if we're ready and isConfigLocked() is FALSE then it means
1780	* that no config file exists yet, so return shortly
1781	*/
1782	if (!isConfigLocked())
1783	return S_OK;
1784
1785	HRESULT rc = S_OK;
1786
1787	/* load the config file */
1788	CFGHANDLE configLoader = 0;
1789	rc = openConfigLoader (&configLoader);
1790	if (FAILED (rc))
1791	return E_FAIL;
1792
1793	CFGNODE machineNode;
1794	CFGNODE extraDataNode;
1795
1796	/* navigate to the right position */
1797	if (VBOX_SUCCESS(CFGLDRGetNode(configLoader, "VirtualBox/Machine", 0, &machineNode)) &&
1798	VBOX_SUCCESS(CFGLDRGetChildNode(machineNode, "ExtraData", 0, &extraDataNode)))
1799	{
1800	/* check if it exists */
1801	bool found = false;
1802	unsigned count;
1803	CFGNODE extraDataItemNode;
1804	CFGLDRCountChildren(extraDataNode, "ExtraDataItem", &count);
1805	for (unsigned i = 0; (i < count) && (found == false); i++)
1806	{
1807	Bstr name;
1808	CFGLDRGetChildNode(extraDataNode, "ExtraDataItem", i, &extraDataItemNode);
1809	CFGLDRQueryBSTR(extraDataItemNode, "name", name.asOutParam());
1810
1811	/* if we're supposed to return the first one */
1812	if (key == NULL)
1813	{
1814	name.cloneTo(nextKey);
1815	if (nextValue)
1816	CFGLDRQueryBSTR(extraDataItemNode, "value", nextValue);
1817	found = true;
1818	}
1819	/* did we find the key we're looking for? */
1820	else if (name == key)
1821	{
1822	found = true;
1823	/* is there another item? */
1824	if (i + 1 < count)
1825	{
1826	CFGLDRGetChildNode(extraDataNode, "ExtraDataItem", i + 1, &extraDataItemNode);
1827	CFGLDRQueryBSTR(extraDataItemNode, "name", name.asOutParam());
1828	name.cloneTo(nextKey);
1829	if (nextValue)
1830	CFGLDRQueryBSTR(extraDataItemNode, "value", nextValue);
1831	found = true;
1832	}
1833	else
1834	{
1835	/* it's the last one */
1836	*nextKey = NULL;
1837	}
1838	}
1839	CFGLDRReleaseNode(extraDataItemNode);
1840	}
1841
1842	/* if we haven't found the key, it's an error */
1843	if (!found)
1844	rc = setError(E_FAIL, tr("Could not find extra data key"));
1845
1846	CFGLDRReleaseNode(extraDataNode);
1847	CFGLDRReleaseNode(machineNode);
1848	}
1849
1850	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
1851
1852	return rc;
1853	}
1854
1855	/**
1856	* Returns associated extra data from the configuration. If the key does
1857	* not exist, NULL will be stored in the output pointer.
1858	*
1859	* @returns COM status code
1860	* @param key extra data key
1861	* @param value address of result pointer
1862	*/
1863	STDMETHODIMP Machine::GetExtraData(INPTR BSTR key, BSTR *value)
1864	{
1865	if (!key)
1866	return E_INVALIDARG;
1867	if (!value)
1868	return E_POINTER;
1869
1870	AutoCaller autoCaller (this);
1871	CheckComRCReturnRC (autoCaller.rc());
1872
1873	AutoReaderLock alock (this);
1874
1875	/* start with nothing found */
1876	*value = NULL;
1877
1878	/*
1879	* if we're ready and isConfigLocked() is FALSE then it means
1880	* that no config file exists yet, so return shortly
1881	*/
1882	if (!isConfigLocked())
1883	return S_OK;
1884
1885	HRESULT rc = S_OK;
1886
1887	/* load the config file */
1888	CFGHANDLE configLoader = 0;
1889	rc = openConfigLoader (&configLoader);
1890	if (FAILED (rc))
1891	return E_FAIL;
1892
1893	CFGNODE machineNode;
1894	CFGNODE extraDataNode;
1895
1896	/* navigate to the right position */
1897	if (VBOX_SUCCESS(CFGLDRGetNode(configLoader, "VirtualBox/Machine", 0, &machineNode)) &&
1898	VBOX_SUCCESS(CFGLDRGetChildNode(machineNode, "ExtraData", 0, &extraDataNode)))
1899	{
1900	/* check if it exists */
1901	bool found = false;
1902	unsigned count;
1903	CFGNODE extraDataItemNode;
1904	CFGLDRCountChildren(extraDataNode, "ExtraDataItem", &count);
1905	for (unsigned i = 0; (i < count) && (found == false); i++)
1906	{
1907	Bstr name;
1908	CFGLDRGetChildNode(extraDataNode, "ExtraDataItem", i, &extraDataItemNode);
1909	CFGLDRQueryBSTR(extraDataItemNode, "name", name.asOutParam());
1910	if (name == key)
1911	{
1912	found = true;
1913	CFGLDRQueryBSTR(extraDataItemNode, "value", value);
1914	}
1915	CFGLDRReleaseNode(extraDataItemNode);
1916	}
1917
1918	CFGLDRReleaseNode(extraDataNode);
1919	CFGLDRReleaseNode(machineNode);
1920	}
1921
1922	rc = closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
1923
1924	return rc;
1925	}
1926
1927	/**
1928	* Stores associated extra data in the configuration. If the data value is NULL
1929	* then the corresponding extra data item is deleted. This method can be called
1930	* outside a session and therefore belongs to the non protected machine data.
1931	*
1932	* @param key extra data key
1933	* @param value extra data value
1934	*
1935	* @note Locks mParent for reading + this object for writing.
1936	*/
1937	STDMETHODIMP Machine::SetExtraData (INPTR BSTR key, INPTR BSTR value)
1938	{
1939	if (!key)
1940	return E_INVALIDARG;
1941
1942	AutoCaller autoCaller (this);
1943	CheckComRCReturnRC (autoCaller.rc());
1944
1945	/* VirtualBox::onExtraDataCanChange() needs mParent lock */
1946	AutoMultiLock <2> alock (mParent->rlock(), this->wlock());
1947
1948	if (mType == IsSnapshotMachine)
1949	CHECK_SETTER();
1950
1951	bool changed = false;
1952	HRESULT rc = S_OK;
1953
1954	/*
1955	* if we're ready and isConfigLocked() is FALSE then it means
1956	* that no config file exists yet, so call saveSettings() to create one
1957	*/
1958	if (!isConfigLocked())
1959	{
1960	rc = saveSettings (false /* aMarkCurStateAsModified */);
1961	if (FAILED (rc))
1962	return rc;
1963	}
1964
1965	/* load the config file */
1966	CFGHANDLE configLoader = 0;
1967	rc = openConfigLoader (&configLoader);
1968	if (FAILED (rc))
1969	return rc;
1970
1971	CFGNODE machineNode = 0;
1972	CFGNODE extraDataNode = 0;
1973
1974	int vrc = CFGLDRGetNode (configLoader, "VirtualBox/Machine", 0, &machineNode);
1975	if (VBOX_FAILURE (vrc))
1976	vrc = CFGLDRCreateNode (configLoader, "VirtualBox/Machine", &machineNode);
1977
1978	vrc = CFGLDRGetChildNode (machineNode, "ExtraData", 0, &extraDataNode);
1979	if (VBOX_FAILURE (vrc) && value)
1980	vrc = CFGLDRCreateChildNode (machineNode, "ExtraData", &extraDataNode);
1981
1982	if (extraDataNode)
1983	{
1984	CFGNODE extraDataItemNode = 0;
1985	Bstr oldVal;
1986
1987	unsigned count;
1988	CFGLDRCountChildren (extraDataNode, "ExtraDataItem", &count);
1989
1990	for (unsigned i = 0; i < count; i++)
1991	{
1992	CFGLDRGetChildNode (extraDataNode, "ExtraDataItem", i, &extraDataItemNode);
1993	Bstr name;
1994	CFGLDRQueryBSTR (extraDataItemNode, "name", name.asOutParam());
1995	if (name == key)
1996	{
1997	CFGLDRQueryBSTR (extraDataItemNode, "value", oldVal.asOutParam());
1998	break;
1999	}
2000	CFGLDRReleaseNode (extraDataItemNode);
2001	extraDataItemNode = 0;
2002	}
2003
2004	/*
2005	* When no key is found, oldVal is null
2006	* Note:
2007	* 1. when oldVal is null, \|oldVal == (BSTR) NULL\| is true
2008	* 2. we cannot do \|oldVal != value\| because it will compare
2009	* BSTR pointers instead of strings (due to type conversion ops)
2010	*/
2011	changed = !(oldVal == value);
2012
2013	if (changed)
2014	{
2015	/* ask for permission from all listeners */
2016	if (!mParent->onExtraDataCanChange (mData->mUuid, key, value))
2017	{
2018	LogWarningFunc (("Someone vetoed! Change refused!\n"));
2019	rc = setError (E_ACCESSDENIED,
2020	tr ("Could not set extra data because someone refused "
2021	"the requested change of '%ls' to '%ls'"), key, value);
2022	}
2023	else
2024	{
2025	if (value)
2026	{
2027	if (!extraDataItemNode)
2028	{
2029	/* create a new item */
2030	CFGLDRAppendChildNode (extraDataNode, "ExtraDataItem",
2031	&extraDataItemNode);
2032	CFGLDRSetBSTR (extraDataItemNode, "name", key);
2033	}
2034	CFGLDRSetBSTR (extraDataItemNode, "value", value);
2035	}
2036	else
2037	{
2038	/* an old value does for sure exist here */
2039	CFGLDRDeleteNode (extraDataItemNode);
2040	extraDataItemNode = 0;
2041	}
2042	}
2043	}
2044
2045	if (extraDataItemNode)
2046	CFGLDRReleaseNode (extraDataItemNode);
2047
2048	CFGLDRReleaseNode (extraDataNode);
2049	}
2050
2051	CFGLDRReleaseNode (machineNode);
2052
2053	if (SUCCEEDED (rc) && changed)
2054	rc = closeConfigLoader (configLoader, true /* aSaveBeforeClose */);
2055	else
2056	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
2057
2058	/* fire an event */
2059	if (SUCCEEDED (rc) && changed)
2060	{
2061	mParent->onExtraDataChange (mData->mUuid, key, value);
2062	}
2063
2064	return rc;
2065	}
2066
2067	STDMETHODIMP Machine::SaveSettings()
2068	{
2069	AutoCaller autoCaller (this);
2070	CheckComRCReturnRC (autoCaller.rc());
2071
2072	/* Under some circumstancies, saveSettings() needs mParent lock */
2073	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
2074
2075	CHECK_SETTER();
2076
2077	/* the settings file path may never be null */
2078	ComAssertRet (mData->mConfigFileFull, E_FAIL);
2079
2080	/* save all VM data excluding snapshots */
2081	return saveSettings();
2082	}
2083
2084	STDMETHODIMP Machine::DiscardSettings()
2085	{
2086	AutoCaller autoCaller (this);
2087	CheckComRCReturnRC (autoCaller.rc());
2088
2089	AutoLock alock (this);
2090
2091	CHECK_SETTER();
2092
2093	/*
2094	* during this rollback, the session will be notified if data has
2095	* been actually changed
2096	*/
2097	rollback (true /* aNotify */);
2098
2099	return S_OK;
2100	}
2101
2102	STDMETHODIMP Machine::DeleteSettings()
2103	{
2104	AutoCaller autoCaller (this);
2105	CheckComRCReturnRC (autoCaller.rc());
2106
2107	AutoLock alock (this);
2108
2109	CHECK_SETTER();
2110
2111	if (mData->mRegistered)
2112	return setError (E_FAIL,
2113	tr ("Cannot delete settings of a registered machine"));
2114
2115	/* delete the settings only when the file actually exists */
2116	if (isConfigLocked())
2117	{
2118	unlockConfig();
2119	int vrc = RTFileDelete (Utf8Str (mData->mConfigFileFull));
2120	if (VBOX_FAILURE (vrc))
2121	return setError (E_FAIL,
2122	tr ("Could not delete the settings file '%ls' (%Vrc)"),
2123	mData->mConfigFileFull.raw(), vrc);
2124
2125	/* delete the Logs folder, nothing important should be left
2126	* there (we don't check for errors because the user might have
2127	* some private files there that we don't want to delete) */
2128	Utf8Str logFolder;
2129	getLogFolder (logFolder);
2130	Assert (!logFolder.isEmpty());
2131	if (RTDirExists (logFolder))
2132	{
2133	/* delete all VBox.log[.N] files from the Logs folder
2134	* (this must be in sync with the rotation logic in
2135	* Console::powerUpThread()) */
2136	Utf8Str log = Utf8StrFmt ("%s/VBox.log", logFolder.raw());
2137	RTFileDelete (log);
2138	for (int i = 3; i >= 0; i--)
2139	{
2140	log = Utf8StrFmt ("%s/VBox.log.%d", logFolder.raw(), i);
2141	RTFileDelete (log);
2142	}
2143
2144	RTDirRemove (logFolder);
2145	}
2146
2147	/* delete the Snapshots folder, nothing important should be left
2148	* there (we don't check for errors because the user might have
2149	* some private files there that we don't want to delete) */
2150	Utf8Str snapshotFolder = mUserData->mSnapshotFolderFull;
2151	Assert (!snapshotFolder.isEmpty());
2152	if (RTDirExists (snapshotFolder))
2153	RTDirRemove (snapshotFolder);
2154
2155	/* delete the directory that contains the settings file, but only
2156	* if it matches the VM name (i.e. a structure created by default in
2157	* openConfigLoader()) */
2158	{
2159	Utf8Str settingsDir;
2160	if (isInOwnDir (&settingsDir))
2161	RTDirRemove (settingsDir);
2162	}
2163	}
2164
2165	return S_OK;
2166	}
2167
2168	STDMETHODIMP Machine::GetSnapshot (INPTR GUIDPARAM aId, ISnapshot **aSnapshot)
2169	{
2170	if (!aSnapshot)
2171	return E_POINTER;
2172
2173	AutoCaller autoCaller (this);
2174	CheckComRCReturnRC (autoCaller.rc());
2175
2176	AutoReaderLock alock (this);
2177
2178	Guid id = aId;
2179	ComObjPtr <Snapshot> snapshot;
2180
2181	HRESULT rc = findSnapshot (id, snapshot, true /* aSetError */);
2182	snapshot.queryInterfaceTo (aSnapshot);
2183
2184	return rc;
2185	}
2186
2187	STDMETHODIMP Machine::FindSnapshot (INPTR BSTR aName, ISnapshot **aSnapshot)
2188	{
2189	if (!aName)
2190	return E_INVALIDARG;
2191	if (!aSnapshot)
2192	return E_POINTER;
2193
2194	AutoCaller autoCaller (this);
2195	CheckComRCReturnRC (autoCaller.rc());
2196
2197	AutoReaderLock alock (this);
2198
2199	ComObjPtr <Snapshot> snapshot;
2200
2201	HRESULT rc = findSnapshot (aName, snapshot, true /* aSetError */);
2202	snapshot.queryInterfaceTo (aSnapshot);
2203
2204	return rc;
2205	}
2206
2207	STDMETHODIMP Machine::SetCurrentSnapshot (INPTR GUIDPARAM aId)
2208	{
2209	/// @todo (dmik) don't forget to set
2210	// mData->mCurrentStateModified to FALSE
2211
2212	return setError (E_NOTIMPL, "Not implemented");
2213	}
2214
2215	STDMETHODIMP
2216	Machine::CreateSharedFolder (INPTR BSTR aName, INPTR BSTR aHostPath)
2217	{
2218	if (!aName \|\| !aHostPath)
2219	return E_INVALIDARG;
2220
2221	AutoCaller autoCaller (this);
2222	CheckComRCReturnRC (autoCaller.rc());
2223
2224	AutoLock alock (this);
2225
2226	CHECK_SETTER();
2227
2228	/// @todo (dmik) check global shared folders when they are done
2229
2230	ComObjPtr <SharedFolder> sharedFolder;
2231	HRESULT rc = findSharedFolder (aName, sharedFolder, false /* aSetError */);
2232	if (SUCCEEDED (rc))
2233	return setError (E_FAIL,
2234	tr ("Shared folder named '%ls' already exists"), aName);
2235
2236	sharedFolder.createObject();
2237	rc = sharedFolder->init (machine(), aName, aHostPath);
2238	if (FAILED (rc))
2239	return rc;
2240
2241	BOOL accessible = FALSE;
2242	rc = sharedFolder->COMGETTER(Accessible) (&accessible);
2243	if (FAILED (rc))
2244	return rc;
2245
2246	if (!accessible)
2247	return setError (E_FAIL,
2248	tr ("Shared folder path '%ls' is not accessible"), aHostPath);
2249
2250	mHWData.backup();
2251	mHWData->mSharedFolders.push_back (sharedFolder);
2252
2253	return S_OK;
2254	}
2255
2256	STDMETHODIMP Machine::RemoveSharedFolder (INPTR BSTR aName)
2257	{
2258	if (!aName)
2259	return E_INVALIDARG;
2260
2261	AutoCaller autoCaller (this);
2262	CheckComRCReturnRC (autoCaller.rc());
2263
2264	AutoReaderLock alock (this);
2265
2266	CHECK_SETTER();
2267
2268	ComObjPtr <SharedFolder> sharedFolder;
2269	HRESULT rc = findSharedFolder (aName, sharedFolder, true /* aSetError */);
2270	if (FAILED (rc))
2271	return rc;
2272
2273	mHWData.backup();
2274	mHWData->mSharedFolders.remove (sharedFolder);
2275
2276	return S_OK;
2277	}
2278
2279	// public methods for internal purposes
2280	/////////////////////////////////////////////////////////////////////////////
2281
2282	/**
2283	* Returns the session machine object associated with the this machine.
2284	* The returned session machine is null if no direct session is currently open.
2285	*
2286	* @Note locks this object for reading.
2287	*/
2288	ComObjPtr <SessionMachine> Machine::sessionMachine()
2289	{
2290	ComObjPtr <SessionMachine> sm;
2291
2292	AutoCaller autoCaller (this);
2293	/* the machine may be inaccessible, so don't assert below */
2294	if (FAILED (autoCaller.rc()))
2295	return sm;
2296
2297	AutoReaderLock alock (this);
2298
2299	sm = mData->mSession.mMachine;
2300	Assert (!sm.isNull() \|\|
2301	mData->mSession.mState != SessionState_SessionOpen);
2302
2303	return sm;
2304	}
2305
2306	/**
2307	* Calculates the absolute path of the given path taking the directory of
2308	* the machine settings file as the current directory.
2309	*
2310	* @param aPath path to calculate the absolute path for
2311	* @param aResult where to put the result (used only on success,
2312	* so can be the same Utf8Str instance as passed as \a aPath)
2313	* @return VirtualBox result
2314	*
2315	* @note Locks this object for reading.
2316	*/
2317	int Machine::calculateFullPath (const char *aPath, Utf8Str &aResult)
2318	{
2319	AutoCaller autoCaller (this);
2320	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
2321
2322	AutoReaderLock alock (this);
2323
2324	AssertReturn (!mData->mConfigFileFull.isNull(), VERR_GENERAL_FAILURE);
2325
2326	Utf8Str settingsDir = mData->mConfigFileFull;
2327
2328	RTPathStripFilename (settingsDir.mutableRaw());
2329	char folder [RTPATH_MAX];
2330	int vrc = RTPathAbsEx (settingsDir, aPath,
2331	folder, sizeof (folder));
2332	if (VBOX_SUCCESS (vrc))
2333	aResult = folder;
2334
2335	return vrc;
2336	}
2337
2338	/**
2339	* Tries to calculate the relative path of the given absolute path using the
2340	* directory of the machine settings file as the base directory.
2341	*
2342	* @param aPath absolute path to calculate the relative path for
2343	* @param aResult where to put the result (used only when it's possible to
2344	* make a relative path from the given absolute path;
2345	* otherwise left untouched)
2346	*
2347	* @note Locks this object for reading.
2348	*/
2349	void Machine::calculateRelativePath (const char *aPath, Utf8Str &aResult)
2350	{
2351	AutoCaller autoCaller (this);
2352	AssertComRCReturn (autoCaller.rc(), (void) 0);
2353
2354	AutoReaderLock alock (this);
2355
2356	AssertReturnVoid (!mData->mConfigFileFull.isNull());
2357
2358	Utf8Str settingsDir = mData->mConfigFileFull;
2359
2360	RTPathStripFilename (settingsDir.mutableRaw());
2361	if (RTPathStartsWith (aPath, settingsDir))
2362	{
2363	/* when assigning, we create a separate Utf8Str instance because both
2364	* aPath and aResult can point to the same memory location when this
2365	* func is called (if we just do aResult = aPath, aResult will be freed
2366	* first, and since its the same as aPath, an attempt to copy garbage
2367	* will be made. */
2368	aResult = Utf8Str (aPath + settingsDir.length() + 1);
2369	}
2370	}
2371
2372	/**
2373	* Returns the full path to the machine's log folder in the
2374	* \a aLogFolder argument.
2375	*/
2376	void Machine::getLogFolder (Utf8Str &aLogFolder)
2377	{
2378	AutoCaller autoCaller (this);
2379	AssertComRCReturn (autoCaller.rc(), (void) 0);
2380
2381	AutoReaderLock alock (this);
2382
2383	Utf8Str settingsDir;
2384	if (isInOwnDir (&settingsDir))
2385	{
2386	/* Log folder is <Machines>/<VM_Name>/Logs */
2387	aLogFolder = Utf8StrFmt ("%s%cLogs", settingsDir.raw(), RTPATH_DELIMITER);
2388	}
2389	else
2390	{
2391	/* Log folder is <Machines>/<VM_SnapshotFolder>/Logs */
2392	Assert (!mUserData->mSnapshotFolderFull.isEmpty());
2393	aLogFolder = Utf8StrFmt ("%ls%cLogs", mUserData->mSnapshotFolderFull.raw(),
2394	RTPATH_DELIMITER);
2395	}
2396	}
2397
2398	/**
2399	* @note Locks mParent and this object for writing,
2400	* calls the client process (outside the lock).
2401	*/
2402	HRESULT Machine::openSession (IInternalSessionControl *aControl)
2403	{
2404	LogFlowThisFuncEnter();
2405
2406	AssertReturn (aControl, E_FAIL);
2407
2408	AutoCaller autoCaller (this);
2409	CheckComRCReturnRC (autoCaller.rc());
2410
2411	/* We need VirtualBox lock because of Progress::notifyComplete() */
2412	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
2413
2414	if (!mData->mRegistered)
2415	return setError (E_UNEXPECTED,
2416	tr ("The machine '%ls' is not registered"), mUserData->mName.raw());
2417
2418	LogFlowThisFunc (("mSession.mState=%d\n", mData->mSession.mState));
2419
2420	if (mData->mSession.mState == SessionState_SessionOpen \|\|
2421	mData->mSession.mState == SessionState_SessionClosing)
2422	return setError (E_ACCESSDENIED,
2423	tr ("A session for the machine '%ls' is currently open "
2424	"(or being closed)"),
2425	mUserData->mName.raw());
2426
2427	/* may not be Running */
2428	AssertReturn (mData->mMachineState < MachineState_Running, E_FAIL);
2429
2430	/* get the sesion PID */
2431	RTPROCESS pid = NIL_RTPROCESS;
2432	AssertCompile (sizeof (ULONG) == sizeof (RTPROCESS));
2433	aControl->GetPID ((ULONG *) &pid);
2434	Assert (pid != NIL_RTPROCESS);
2435
2436	if (mData->mSession.mState == SessionState_SessionSpawning)
2437	{
2438	/* This machine is awaiting for a spawning session to be opened, so
2439	* reject any other open attempts from processes other than one
2440	* started by #openRemoteSession(). */
2441
2442	LogFlowThisFunc (("mSession.mPid=%d(0x%x)\n",
2443	mData->mSession.mPid, mData->mSession.mPid));
2444	LogFlowThisFunc (("session.pid=%d(0x%x)\n", pid, pid));
2445
2446	if (mData->mSession.mPid != pid)
2447	return setError (E_ACCESSDENIED,
2448	tr ("An unexpected process (PID=0x%08X) has tried to open a direct "
2449	"session with the machine named '%ls', while only a process "
2450	"started by OpenRemoteSession (PID=0x%08X) is allowed"),
2451	pid, mUserData->mName.raw(), mData->mSession.mPid);
2452	}
2453
2454	/* create a SessionMachine object */
2455	ComObjPtr <SessionMachine> sessionMachine;
2456	sessionMachine.createObject();
2457	HRESULT rc = sessionMachine->init (this);
2458	AssertComRC (rc);
2459
2460	if (SUCCEEDED (rc))
2461	{
2462	/*
2463	* Set the session state to Spawning to protect against subsequent
2464	* attempts to open a session and to unregister the machine after
2465	* we leave the lock.
2466	*/
2467	SessionState_T origState = mData->mSession.mState;
2468	mData->mSession.mState = SessionState_SessionSpawning;
2469
2470	/*
2471	* Leave the lock before calling the client process -- it will call
2472	* Machine/SessionMachine methods. Leaving the lock here is quite safe
2473	* because the state is Spawning, so that openRemotesession() and
2474	* openExistingSession() calls will fail. This method, called before we
2475	* enter the lock again, will fail because of the wrong PID.
2476	*
2477	* Note that mData->mSession.mRemoteControls accessed outside
2478	* the lock may not be modified when state is Spawning, so it's safe.
2479	*/
2480	alock.leave();
2481
2482	LogFlowThisFunc (("Calling AssignMachine()...\n"));
2483	rc = aControl->AssignMachine (sessionMachine);
2484	LogFlowThisFunc (("AssignMachine() returned %08X\n", rc));
2485
2486	/* The failure may w/o any error info (from RPC), so provide one */
2487	if (FAILED (rc))
2488	setError (rc,
2489	tr ("Failed to assign the machine to the session"));
2490
2491	if (SUCCEEDED (rc) && origState == SessionState_SessionSpawning)
2492	{
2493	/* complete the remote session initialization */
2494
2495	/* get the console from the direct session */
2496	ComPtr <IConsole> console;
2497	rc = aControl->GetRemoteConsole (console.asOutParam());
2498	ComAssertComRC (rc);
2499
2500	if (SUCCEEDED (rc) && !console)
2501	{
2502	ComAssert (!!console);
2503	rc = E_FAIL;
2504	}
2505
2506	/* assign machine & console to the remote sesion */
2507	if (SUCCEEDED (rc))
2508	{
2509	/*
2510	* after openRemoteSession(), the first and the only
2511	* entry in remoteControls is that remote session
2512	*/
2513	LogFlowThisFunc (("Calling AssignRemoteMachine()...\n"));
2514	rc = mData->mSession.mRemoteControls.front()->
2515	AssignRemoteMachine (sessionMachine, console);
2516	LogFlowThisFunc (("AssignRemoteMachine() returned %08X\n", rc));
2517
2518	/* The failure may w/o any error info (from RPC), so provide one */
2519	if (FAILED (rc))
2520	setError (rc,
2521	tr ("Failed to assign the machine to the remote session"));
2522	}
2523
2524	if (FAILED (rc))
2525	aControl->Uninitialize();
2526	}
2527
2528	/* enter the lock again */
2529	alock.enter();
2530
2531	/* Restore the session state */
2532	mData->mSession.mState = origState;
2533	}
2534
2535	/* finalize spawning amyway (this is why we don't return on errors above) */
2536	if (mData->mSession.mState == SessionState_SessionSpawning)
2537	{
2538	/* Note that the progress object is finalized later */
2539
2540	/* We don't reset mSession.mPid and mType here because both are
2541	* necessary for SessionMachine::uninit() to reap the child process
2542	* later. */
2543
2544	if (FAILED (rc))
2545	{
2546	/* Remove the remote control from the list on failure
2547	* and reset session state to Closed. */
2548	mData->mSession.mRemoteControls.clear();
2549	mData->mSession.mState = SessionState_SessionClosed;
2550	}
2551	}
2552	else
2553	{
2554	/* memorize PID of the directly opened session */
2555	if (SUCCEEDED (rc))
2556	mData->mSession.mPid = pid;
2557	}
2558
2559	if (SUCCEEDED (rc))
2560	{
2561	/* memorize the direct session control */
2562	mData->mSession.mDirectControl = aControl;
2563	mData->mSession.mState = SessionState_SessionOpen;
2564	/* associate the SessionMachine with this Machine */
2565	mData->mSession.mMachine = sessionMachine;
2566	}
2567
2568	if (mData->mSession.mProgress)
2569	{
2570	/* finalize the progress after setting the state, for consistency */
2571	mData->mSession.mProgress->notifyComplete (rc);
2572	mData->mSession.mProgress.setNull();
2573	}
2574
2575	/* uninitialize the created session machine on failure */
2576	if (FAILED (rc))
2577	sessionMachine->uninit();
2578
2579	LogFlowThisFunc (("rc=%08X\n", rc));
2580	LogFlowThisFuncLeave();
2581	return rc;
2582	}
2583
2584	/**
2585	* @note Locks this object for writing, calls the client process
2586	* (inside the lock).
2587	*/
2588	HRESULT Machine::openRemoteSession (IInternalSessionControl *aControl,
2589	INPTR BSTR aType, Progress *aProgress)
2590	{
2591	LogFlowThisFuncEnter();
2592
2593	AssertReturn (aControl, E_FAIL);
2594	AssertReturn (aProgress, E_FAIL);
2595
2596	AutoCaller autoCaller (this);
2597	CheckComRCReturnRC (autoCaller.rc());
2598
2599	AutoLock alock (this);
2600
2601	if (!mData->mRegistered)
2602	return setError (E_UNEXPECTED,
2603	tr ("The machine '%ls' is not registered"), mUserData->mName.raw());
2604
2605	LogFlowThisFunc (("mSession.mState=%d\n", mData->mSession.mState));
2606
2607	if (mData->mSession.mState == SessionState_SessionOpen \|\|
2608	mData->mSession.mState == SessionState_SessionSpawning \|\|
2609	mData->mSession.mState == SessionState_SessionClosing)
2610	return setError (E_ACCESSDENIED,
2611	tr ("A session for the machine '%ls' is currently open "
2612	"(or being opened or closed)"),
2613	mUserData->mName.raw());
2614
2615	/* may not be Running */
2616	AssertReturn (mData->mMachineState < MachineState_Running, E_FAIL);
2617
2618	/* get the path to the executable */
2619	char path [RTPATH_MAX];
2620	RTPathProgram (path, RTPATH_MAX);
2621	size_t sz = strlen (path);
2622	path [sz++] = RTPATH_DELIMITER;
2623	path [sz] = 0;
2624	char *cmd = path + sz;
2625	sz = RTPATH_MAX - sz;
2626
2627	int vrc = VINF_SUCCESS;
2628	RTPROCESS pid = NIL_RTPROCESS;
2629
2630	Bstr type (aType);
2631	if (type == "gui")
2632	{
2633	const char VirtualBox_exe[] = "VirtualBox" HOSTSUFF_EXE;
2634	Assert (sz >= sizeof (VirtualBox_exe));
2635	strcpy (cmd, VirtualBox_exe);
2636
2637	Utf8Str idStr = mData->mUuid.toString();
2638	#ifdef __WIN__ /** @todo drop this once the RTProcCreate bug has been fixed */
2639	const char * args[] = {path, "-startvm", idStr, 0 };
2640	#else
2641	Utf8Str name = mUserData->mName;
2642	const char * args[] = {path, "-comment", name, "-startvm", idStr, 0 };
2643	#endif
2644	vrc = RTProcCreate (path, args, NULL, 0, &pid);
2645	}
2646	else
2647	#ifdef VBOX_VRDP
2648	if (type == "vrdp")
2649	{
2650	const char VBoxVRDP_exe[] = "VBoxVRDP" HOSTSUFF_EXE;
2651	Assert (sz >= sizeof (VBoxVRDP_exe));
2652	strcpy (cmd, VBoxVRDP_exe);
2653
2654	Utf8Str idStr = mData->mUuid.toString();
2655	#ifdef __WIN__
2656	const char * args[] = {path, "-startvm", idStr, 0 };
2657	#else
2658	Utf8Str name = mUserData->mName;
2659	const char * args[] = {path, "-comment", name, "-startvm", idStr, 0 };
2660	#endif
2661	vrc = RTProcCreate (path, args, NULL, 0, &pid);
2662	}
2663	else
2664	#endif /* VBOX_VRDP */
2665	if (type == "capture")
2666	{
2667	const char VBoxVRDP_exe[] = "VBoxVRDP" HOSTSUFF_EXE;
2668	Assert (sz >= sizeof (VBoxVRDP_exe));
2669	strcpy (cmd, VBoxVRDP_exe);
2670
2671	Utf8Str idStr = mData->mUuid.toString();
2672	#ifdef __WIN__
2673	const char * args[] = {path, "-startvm", idStr, "-capture", 0 };
2674	#else
2675	Utf8Str name = mUserData->mName;
2676	const char * args[] = {path, "-comment", name, "-startvm", idStr, "-capture", 0 };
2677	#endif
2678	vrc = RTProcCreate (path, args, NULL, 0, &pid);
2679	}
2680	else
2681	{
2682	return setError (E_INVALIDARG,
2683	tr ("Invalid session type: '%ls'"), aType);
2684	}
2685
2686	if (VBOX_FAILURE (vrc))
2687	return setError (E_FAIL,
2688	tr ("Could not launch a process for the machine '%ls' (%Vrc)"),
2689	mUserData->mName.raw(), vrc);
2690
2691	LogFlowThisFunc (("launched.pid=%d(0x%x)\n", pid, pid));
2692
2693	/*
2694	* Note that we don't leave the lock here before calling the client,
2695	* because it doesn't need to call us back if called with a NULL argument.
2696	* Leaving the lock herer is dangerous because we didn't prepare the
2697	* launch data yet, but the client we've just started may happen to be
2698	* too fast and call openSession() that will fail (because of PID, etc.),
2699	* so that the Machine will never get out of the Spawning session state.
2700	*/
2701
2702	/* inform the session that it will be a remote one */
2703	LogFlowThisFunc (("Calling AssignMachine (NULL)...\n"));
2704	HRESULT rc = aControl->AssignMachine (NULL);
2705	LogFlowThisFunc (("AssignMachine (NULL) returned %08X\n", rc));
2706
2707	if (FAILED (rc))
2708	{
2709	/* restore the session state */
2710	mData->mSession.mState = SessionState_SessionClosed;
2711	/* The failure may w/o any error info (from RPC), so provide one */
2712	return setError (rc,
2713	tr ("Failed to assign the machine to the session"));
2714	}
2715
2716	/* attach launch data to the machine */
2717	Assert (mData->mSession.mPid == NIL_RTPROCESS);
2718	mData->mSession.mRemoteControls.push_back (aControl);
2719	mData->mSession.mProgress = aProgress;
2720	mData->mSession.mPid = pid;
2721	mData->mSession.mState = SessionState_SessionSpawning;
2722	mData->mSession.mType = type;
2723
2724	LogFlowThisFuncLeave();
2725	return S_OK;
2726	}
2727
2728	/**
2729	* @note Locks this object for writing, calls the client process
2730	* (outside the lock).
2731	*/
2732	HRESULT Machine::openExistingSession (IInternalSessionControl *aControl)
2733	{
2734	LogFlowThisFuncEnter();
2735
2736	AssertReturn (aControl, E_FAIL);
2737
2738	AutoCaller autoCaller (this);
2739	CheckComRCReturnRC (autoCaller.rc());
2740
2741	AutoLock alock (this);
2742
2743	if (!mData->mRegistered)
2744	return setError (E_UNEXPECTED,
2745	tr ("The machine '%ls' is not registered"), mUserData->mName.raw());
2746
2747	LogFlowThisFunc (("mSession.state=%d\n", mData->mSession.mState));
2748
2749	if (mData->mSession.mState != SessionState_SessionOpen)
2750	return setError (E_ACCESSDENIED,
2751	tr ("The machine '%ls' does not have an open session"),
2752	mUserData->mName.raw());
2753
2754	ComAssertRet (!mData->mSession.mDirectControl.isNull(), E_FAIL);
2755
2756	/*
2757	* Get the console from the direct session (note that we don't leave the
2758	* lock here because GetRemoteConsole must not call us back).
2759	*/
2760	ComPtr <IConsole> console;
2761	HRESULT rc = mData->mSession.mDirectControl->
2762	GetRemoteConsole (console.asOutParam());
2763	if (FAILED (rc))
2764	{
2765	/* The failure may w/o any error info (from RPC), so provide one */
2766	return setError (rc,
2767	tr ("Failed to get a console object from the direct session"));
2768	}
2769
2770	ComAssertRet (!console.isNull(), E_FAIL);
2771
2772	ComObjPtr <SessionMachine> sessionMachine = mData->mSession.mMachine;
2773	AssertReturn (!sessionMachine.isNull(), E_FAIL);
2774
2775	/*
2776	* Leave the lock before calling the client process. It's safe here
2777	* since the only thing to do after we get the lock again is to add
2778	* the remote control to the list (which doesn't directly influence
2779	* anything).
2780	*/
2781	alock.leave();
2782
2783	/* attach the remote session to the machine */
2784	LogFlowThisFunc (("Calling AssignRemoteMachine()...\n"));
2785	rc = aControl->AssignRemoteMachine (sessionMachine, console);
2786	LogFlowThisFunc (("AssignRemoteMachine() returned %08X\n", rc));
2787
2788	/* The failure may w/o any error info (from RPC), so provide one */
2789	if (FAILED (rc))
2790	return setError (rc,
2791	tr ("Failed to assign the machine to the session"));
2792
2793	alock.enter();
2794
2795	/* need to revalidate the state after entering the lock again */
2796	if (mData->mSession.mState != SessionState_SessionOpen)
2797	{
2798	aControl->Uninitialize();
2799
2800	return setError (E_ACCESSDENIED,
2801	tr ("The machine '%ls' does not have an open session"),
2802	mUserData->mName.raw());
2803	}
2804
2805	/* store the control in the list */
2806	mData->mSession.mRemoteControls.push_back (aControl);
2807
2808	LogFlowThisFuncLeave();
2809	return S_OK;
2810	}
2811
2812	/**
2813	* Checks that the registered flag of the machine can be set according to
2814	* the argument and sets it. On success, commits and saves all settings.
2815	*
2816	* @note When this machine is inaccessible, the only valid value for \a
2817	* aRegistered is FALSE (i.e. unregister the machine) because unregistered
2818	* inaccessible machines are not currently supported. Note that unregistering
2819	* an inaccessible machine will \b uninitialize this machine object. Therefore,
2820	* the caller must make sure there are no active Machine::addCaller() calls
2821	* on the current thread because this will block Machine::uninit().
2822	*
2823	* @note Locks this object and children for writing!
2824	*/
2825	HRESULT Machine::trySetRegistered (BOOL aRegistered)
2826	{
2827	AutoLimitedCaller autoCaller (this);
2828	AssertComRCReturnRC (autoCaller.rc());
2829
2830	AutoLock alock (this);
2831
2832	ComAssertRet (mData->mRegistered != aRegistered, E_FAIL);
2833
2834	if (!mData->mAccessible)
2835	{
2836	/* A special case: the machine is not accessible. */
2837
2838	/* inaccessible machines can only be unregistered */
2839	AssertReturn (!aRegistered, E_FAIL);
2840
2841	/* Uninitialize ourselves here because currently there may be no
2842	* unregistered that are inaccessible (this state combination is not
2843	* supported). Note releasing the caller and leaving the lock before
2844	* calling uninit() */
2845
2846	alock.leave();
2847	autoCaller.release();
2848
2849	uninit();
2850
2851	return S_OK;
2852	}
2853
2854	AssertReturn (autoCaller.state() == Ready, E_FAIL);
2855
2856	if (aRegistered)
2857	{
2858	if (mData->mRegistered)
2859	return setError (E_FAIL,
2860	tr ("The machine '%ls' with UUID {%s} is already registered"),
2861	mUserData->mName.raw(),
2862	mData->mUuid.toString().raw());
2863	}
2864	else
2865	{
2866	if (mData->mMachineState == MachineState_Saved)
2867	return setError (E_FAIL,
2868	tr ("Cannot unregister the machine '%ls' because it "
2869	"is in the Saved state"),
2870	mUserData->mName.raw());
2871
2872	size_t snapshotCount = 0;
2873	if (mData->mFirstSnapshot)
2874	snapshotCount = mData->mFirstSnapshot->descendantCount() + 1;
2875	if (snapshotCount)
2876	return setError (E_FAIL,
2877	tr ("Cannot unregister the machine '%ls' because it "
2878	"has %d snapshots"),
2879	mUserData->mName.raw(), snapshotCount);
2880
2881	if (mData->mSession.mState != SessionState_SessionClosed)
2882	return setError (E_FAIL,
2883	tr ("Cannot unregister the machine '%ls' because it has an "
2884	"open session"),
2885	mUserData->mName.raw());
2886
2887	if (mHDData->mHDAttachments.size() != 0)
2888	return setError (E_FAIL,
2889	tr ("Cannot unregister the machine '%ls' because it "
2890	"has %d hard disks attached"),
2891	mUserData->mName.raw(), mHDData->mHDAttachments.size());
2892	}
2893
2894	/* Ensure the settings are saved. If we are going to be registered and
2895	* isConfigLocked() is FALSE then it means that no config file exists yet,
2896	* so create it. */
2897	if (isModified() \|\| (aRegistered && !isConfigLocked()))
2898	{
2899	HRESULT rc = saveSettings();
2900	CheckComRCReturnRC (rc);
2901	}
2902
2903	mData->mRegistered = aRegistered;
2904
2905	/* inform the USB proxy about all attached/detached USB filters */
2906	mUSBController->onMachineRegistered (aRegistered);
2907
2908	return S_OK;
2909	}
2910
2911	// protected methods
2912	/////////////////////////////////////////////////////////////////////////////
2913
2914	/**
2915	* Helper to uninitialize all associated child objects
2916	* and to free all data structures.
2917	*
2918	* This method must be called as a part of the object's uninitialization
2919	* procedure (usually done in the uninit() method).
2920	*
2921	* @note Must be called only from uninit().
2922	*/
2923	void Machine::uninitDataAndChildObjects()
2924	{
2925	AutoCaller autoCaller (this);
2926	AssertComRCReturn (autoCaller.rc(), (void) 0);
2927	AssertComRCReturn (autoCaller.state( ) == InUninit, (void) 0);
2928
2929	/* tell all our child objects we've been uninitialized */
2930
2931	/*
2932	* uninit all children using addDependentChild()/removeDependentChild()
2933	* in their init()/uninit() methods
2934	*/
2935	uninitDependentChildren();
2936
2937	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
2938	{
2939	if (mNetworkAdapters [slot])
2940	{
2941	mNetworkAdapters [slot]->uninit();
2942	unconst (mNetworkAdapters [slot]).setNull();
2943	}
2944	}
2945
2946	if (mUSBController)
2947	{
2948	mUSBController->uninit();
2949	unconst (mUSBController).setNull();
2950	}
2951
2952	if (mAudioAdapter)
2953	{
2954	mAudioAdapter->uninit();
2955	unconst (mAudioAdapter).setNull();
2956	}
2957
2958	if (mFloppyDrive)
2959	{
2960	mFloppyDrive->uninit();
2961	unconst (mFloppyDrive).setNull();
2962	}
2963
2964	if (mDVDDrive)
2965	{
2966	mDVDDrive->uninit();
2967	unconst (mDVDDrive).setNull();
2968	}
2969
2970	#ifdef VBOX_VRDP
2971	if (mVRDPServer)
2972	{
2973	mVRDPServer->uninit();
2974	unconst (mVRDPServer).setNull();
2975	}
2976	#endif
2977
2978	if (mBIOSSettings)
2979	{
2980	mBIOSSettings->uninit();
2981	unconst (mBIOSSettings).setNull();
2982	}
2983
2984	/* free data structures */
2985	mSSData.free();
2986	mHDData.free();
2987	mHWData.free();
2988	mUserData.free();
2989	mData.free();
2990	}
2991
2992	/**
2993	* Helper to change the machine state.
2994	*
2995	* @note Locks this object for writing.
2996	*/
2997	HRESULT Machine::setMachineState (MachineState_T aMachineState)
2998	{
2999	LogFlowThisFuncEnter();
3000	LogFlowThisFunc (("aMachineState=%d\n", aMachineState));
3001
3002	AutoCaller autoCaller (this);
3003	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
3004
3005	AutoLock alock (this);
3006
3007	if (mData->mMachineState != aMachineState)
3008	{
3009	mData->mMachineState = aMachineState;
3010
3011	RTTIMESPEC time;
3012	mData->mLastStateChange = RTTimeSpecGetMilli(RTTimeNow(&time));
3013
3014	mParent->onMachineStateChange (mData->mUuid, aMachineState);
3015	}
3016
3017	LogFlowThisFuncLeave();
3018	return S_OK;
3019	}
3020
3021	/**
3022	* Searches for a shared folder with the given logical name
3023	* in the collection of shared folders.
3024	*
3025	* @param aName logical name of the shared folder
3026	* @param aSharedFolder where to return the found object
3027	* @param aSetError whether to set the error info if the folder is
3028	* not found
3029	* @return
3030	* S_OK when found or E_INVALIDARG when not found
3031	*
3032	* @note
3033	* must be called from under the object's lock!
3034	*/
3035	HRESULT Machine::findSharedFolder (const BSTR aName,
3036	ComObjPtr <SharedFolder> &aSharedFolder,
3037	bool aSetError /* = false */)
3038	{
3039	bool found = false;
3040	for (HWData::SharedFolderList::const_iterator it = mHWData->mSharedFolders.begin();
3041	!found && it != mHWData->mSharedFolders.end();
3042	++ it)
3043	{
3044	AutoLock alock (*it);
3045	found = (*it)->name() == aName;
3046	if (found)
3047	aSharedFolder = *it;
3048	}
3049
3050	HRESULT rc = found ? S_OK : E_INVALIDARG;
3051
3052	if (aSetError && !found)
3053	setError (rc, tr ("Could not find a shared folder named '%ls'"), aName);
3054
3055	return rc;
3056	}
3057
3058	/**
3059	* Loads all the VM settings by walking down the <Machine> node.
3060	*
3061	* @param aRegistered true when the machine is being loaded on VirtualBox
3062	* startup
3063	*
3064	* @note This method is intended to be called only from init(), so it assumes
3065	* all machine data fields have appropriate default values when it is called.
3066	*
3067	* @note Doesn't lock any objects.
3068	*/
3069	HRESULT Machine::loadSettings (bool aRegistered)
3070	{
3071	LogFlowThisFuncEnter();
3072	AssertReturn (mType == IsMachine, E_FAIL);
3073
3074	AutoCaller autoCaller (this);
3075	AssertReturn (autoCaller.state() == InInit, E_FAIL);
3076
3077	HRESULT rc = S_OK;
3078
3079	CFGHANDLE configLoader = NULL;
3080	char *loaderError = NULL;
3081	int vrc = CFGLDRLoad (&configLoader,
3082	Utf8Str (mData->mConfigFileFull), mData->mHandleCfgFile,
3083	XmlSchemaNS, true, cfgLdrEntityResolver,
3084	&loaderError);
3085	if (VBOX_FAILURE (vrc))
3086	{
3087	rc = setError (E_FAIL,
3088	tr ("Could not load the settings file '%ls' (%Vrc)%s%s"),
3089	mData->mConfigFileFull.raw(), vrc,
3090	loaderError ? ".\n" : "", loaderError ? loaderError : "");
3091
3092	if (loaderError)
3093	RTMemTmpFree (loaderError);
3094
3095	LogFlowThisFuncLeave();
3096	return rc;
3097	}
3098
3099	/*
3100	* When reading the XML, we assume it has been validated, so we don't
3101	* do any structural checks here, Just Assert() some things.
3102	*/
3103
3104	CFGNODE machineNode = 0;
3105	CFGLDRGetNode (configLoader, "VirtualBox/Machine", 0, &machineNode);
3106
3107	do
3108	{
3109	ComAssertBreak (machineNode, rc = E_FAIL);
3110
3111	/* uuid (required) */
3112	Guid id;
3113	CFGLDRQueryUUID (machineNode, "uuid", id.ptr());
3114
3115	/* If the stored UUID is not empty, it means the registered machine
3116	* is being loaded. Compare the loaded UUID with the stored one taken
3117	* from the global registry. */
3118	if (!mData->mUuid.isEmpty())
3119	{
3120	if (mData->mUuid != id)
3121	{
3122	rc = setError (E_FAIL,
3123	tr ("Machine UUID {%Vuuid} in '%ls' doesn't match its "
3124	"UUID {%s} in the registry file '%ls'"),
3125	id.raw(), mData->mConfigFileFull.raw(),
3126	mData->mUuid.toString().raw(),
3127	mParent->settingsFileName().raw());
3128	break;
3129	}
3130	}
3131	else
3132	unconst (mData->mUuid) = id;
3133
3134	/* name (required) */
3135	CFGLDRQueryBSTR (machineNode, "name", mUserData->mName.asOutParam());
3136
3137	/* nameSync (optional, default is true) */
3138	{
3139	bool nameSync = true;
3140	CFGLDRQueryBool (machineNode, "nameSync", &nameSync);
3141	mUserData->mNameSync = nameSync;
3142	}
3143
3144	/* Description (optional, default is null) */
3145	{
3146	CFGNODE descNode = 0;
3147	CFGLDRGetChildNode (machineNode, "Description", 0, &descNode);
3148	if (descNode)
3149	{
3150	CFGLDRQueryBSTR (descNode, NULL,
3151	mUserData->mDescription.asOutParam());
3152	CFGLDRReleaseNode (descNode);
3153	}
3154	else
3155	mUserData->mDescription.setNull();
3156	}
3157
3158	/* OSType (required) */
3159	{
3160	Bstr osTypeId;
3161	CFGLDRQueryBSTR (machineNode, "OSType", osTypeId.asOutParam());
3162
3163	/* look up the object in our list */
3164	ComPtr <IGuestOSType> guestOSType;
3165	rc = mParent->FindGuestOSType (osTypeId, guestOSType.asOutParam());
3166	if (FAILED (rc))
3167	break;
3168
3169	mUserData->mOSType = guestOSType;
3170	}
3171
3172	/* stateFile (optional) */
3173	{
3174	Bstr stateFilePath;
3175	CFGLDRQueryBSTR (machineNode, "stateFile", stateFilePath.asOutParam());
3176	if (stateFilePath)
3177	{
3178	Utf8Str stateFilePathFull = stateFilePath;
3179	int vrc = calculateFullPath (stateFilePathFull, stateFilePathFull);
3180	if (VBOX_FAILURE (vrc))
3181	{
3182	rc = setError (E_FAIL,
3183	tr ("Invalid saved state file path: '%ls' (%Vrc)"),
3184	stateFilePath.raw(), vrc);
3185	break;
3186	}
3187	mSSData->mStateFilePath = stateFilePathFull;
3188	}
3189	else
3190	mSSData->mStateFilePath.setNull();
3191	}
3192
3193	/*
3194	* currentSnapshot ID (optional)
3195	* Note that due to XML Schema constaraints this attribute, when present,
3196	* will guaranteedly refer to an existing snapshot definition in XML
3197	*/
3198	Guid currentSnapshotId;
3199	CFGLDRQueryUUID (machineNode, "currentSnapshot", currentSnapshotId.ptr());
3200
3201	/* snapshotFolder (optional) */
3202	{
3203	Bstr folder;
3204	CFGLDRQueryBSTR (machineNode, "snapshotFolder", folder.asOutParam());
3205	rc = COMSETTER(SnapshotFolder) (folder);
3206	if (FAILED (rc))
3207	break;
3208	}
3209
3210	/* lastStateChange (optional, for compatiblity) */
3211	{
3212	int64_t lastStateChange = 0;
3213	CFGLDRQueryDateTime (machineNode, "lastStateChange", &lastStateChange);
3214	if (lastStateChange == 0)
3215	{
3216	/// @todo (dmik) until lastStateChange is the required attribute,
3217	// we simply set it to the current time if missing in the config
3218	RTTIMESPEC time;
3219	lastStateChange = RTTimeSpecGetMilli (RTTimeNow (&time));
3220	}
3221	mData->mLastStateChange = lastStateChange;
3222	}
3223
3224	/* aborted (optional) */
3225	bool aborted = false;
3226	CFGLDRQueryBool (machineNode, "aborted", &aborted);
3227
3228	/* currentStateModified (optional, default is true) */
3229	mData->mCurrentStateModified = TRUE;
3230	{
3231	bool val = true;
3232	CFGLDRQueryBool (machineNode, "currentStateModified", &val);
3233	mData->mCurrentStateModified = val;
3234	}
3235
3236	/*
3237	* note: all mUserData members must be assigned prior this point because
3238	* we need to commit changes in order to let mUserData be shared by all
3239	* snapshot machine instances.
3240	*/
3241	mUserData.commitCopy();
3242
3243	/* Snapshot node (optional) */
3244	{
3245	CFGNODE snapshotNode = 0;
3246	CFGLDRGetChildNode (machineNode, "Snapshot", 0, &snapshotNode);
3247	if (snapshotNode)
3248	{
3249	/* read all snapshots recursively */
3250	rc = loadSnapshot (snapshotNode, currentSnapshotId, NULL);
3251	CFGLDRReleaseNode (snapshotNode);
3252	if (FAILED (rc))
3253	break;
3254	}
3255	}
3256
3257	/* Hardware node (required) */
3258	{
3259	CFGNODE hardwareNode = 0;
3260	CFGLDRGetChildNode (machineNode, "Hardware", 0, &hardwareNode);
3261	ComAssertBreak (hardwareNode, rc = E_FAIL);
3262	rc = loadHardware (hardwareNode);
3263	CFGLDRReleaseNode (hardwareNode);
3264	if (FAILED (rc))
3265	break;
3266	}
3267
3268	/* HardDiskAttachments node (required) */
3269	{
3270	CFGNODE hdasNode = 0;
3271	CFGLDRGetChildNode (machineNode, "HardDiskAttachments", 0, &hdasNode);
3272	ComAssertBreak (hdasNode, rc = E_FAIL);
3273
3274	rc = loadHardDisks (hdasNode, aRegistered);
3275	CFGLDRReleaseNode (hdasNode);
3276	if (FAILED (rc))
3277	break;
3278	}
3279
3280	/*
3281	* NOTE: the assignment below must be the last thing to do,
3282	* otherwise it will be not possible to change the settings
3283	* somewehere in the code above because all setters will be
3284	* blocked by CHECK_SETTER()
3285	*/
3286
3287	/* set the machine state to Aborted or Saved when appropriate */
3288	if (aborted)
3289	{
3290	Assert (!mSSData->mStateFilePath);
3291	mSSData->mStateFilePath.setNull();
3292
3293	mData->mMachineState = MachineState_Aborted;
3294	}
3295	else if (mSSData->mStateFilePath)
3296	{
3297	mData->mMachineState = MachineState_Saved;
3298	}
3299	}
3300	while (0);
3301
3302	if (machineNode)
3303	CFGLDRReleaseNode (machineNode);
3304
3305	CFGLDRFree (configLoader);
3306
3307	LogFlowThisFuncLeave();
3308	return rc;
3309	}
3310
3311	/**
3312	* Recursively loads all snapshots starting from the given.
3313	*
3314	* @param aNode <Snapshot> node
3315	* @param aCurSnapshotId current snapshot ID from the settings file
3316	* @param aParentSnapshot parent snapshot
3317	*/
3318	HRESULT Machine::loadSnapshot (CFGNODE aNode, const Guid &aCurSnapshotId,
3319	Snapshot *aParentSnapshot)
3320	{
3321	AssertReturn (aNode, E_INVALIDARG);
3322	AssertReturn (mType == IsMachine, E_FAIL);
3323
3324	// create a snapshot machine object
3325	ComObjPtr <SnapshotMachine> snapshotMachine;
3326	snapshotMachine.createObject();
3327
3328	HRESULT rc = S_OK;
3329
3330	Guid uuid; // required
3331	CFGLDRQueryUUID (aNode, "uuid", uuid.ptr());
3332
3333	Bstr stateFilePath; // optional
3334	CFGLDRQueryBSTR (aNode, "stateFile", stateFilePath.asOutParam());
3335	if (stateFilePath)
3336	{
3337	Utf8Str stateFilePathFull = stateFilePath;
3338	int vrc = calculateFullPath (stateFilePathFull, stateFilePathFull);
3339	if (VBOX_FAILURE (vrc))
3340	return setError (E_FAIL,
3341	tr ("Invalid saved state file path: '%ls' (%Vrc)"),
3342	stateFilePath.raw(), vrc);
3343
3344	stateFilePath = stateFilePathFull;
3345	}
3346
3347	do
3348	{
3349	// Hardware node (required)
3350	CFGNODE hardwareNode = 0;
3351	CFGLDRGetChildNode (aNode, "Hardware", 0, &hardwareNode);
3352	ComAssertBreak (hardwareNode, rc = E_FAIL);
3353
3354	do
3355	{
3356	// HardDiskAttachments node (required)
3357	CFGNODE hdasNode = 0;
3358	CFGLDRGetChildNode (aNode, "HardDiskAttachments", 0, &hdasNode);
3359	ComAssertBreak (hdasNode, rc = E_FAIL);
3360
3361	// initialize the snapshot machine
3362	rc = snapshotMachine->init (this, hardwareNode, hdasNode,
3363	uuid, stateFilePath);
3364
3365	CFGLDRReleaseNode (hdasNode);
3366	}
3367	while (0);
3368
3369	CFGLDRReleaseNode (hardwareNode);
3370	}
3371	while (0);
3372
3373	if (FAILED (rc))
3374	return rc;
3375
3376	// create a snapshot object
3377	ComObjPtr <Snapshot> snapshot;
3378	snapshot.createObject();
3379
3380	{
3381	Bstr name; // required
3382	CFGLDRQueryBSTR (aNode, "name", name.asOutParam());
3383
3384	LONG64 timeStamp = 0; // required
3385	CFGLDRQueryDateTime (aNode, "timeStamp", &timeStamp);
3386
3387	Bstr description; // optional
3388	{
3389	CFGNODE descNode = 0;
3390	CFGLDRGetChildNode (aNode, "Description", 0, &descNode);
3391	if (descNode)
3392	{
3393	CFGLDRQueryBSTR (descNode, NULL, description.asOutParam());
3394	CFGLDRReleaseNode (descNode);
3395	}
3396	}
3397
3398	// initialize the snapshot
3399	rc = snapshot->init (uuid, name, description, timeStamp,
3400	snapshotMachine, aParentSnapshot);
3401	if (FAILED (rc))
3402	return rc;
3403	}
3404
3405	// memorize the first snapshot if necessary
3406	if (!mData->mFirstSnapshot)
3407	mData->mFirstSnapshot = snapshot;
3408
3409	// memorize the current snapshot when appropriate
3410	if (!mData->mCurrentSnapshot && snapshot->data().mId == aCurSnapshotId)
3411	mData->mCurrentSnapshot = snapshot;
3412
3413	// Snapshots node (optional)
3414	{
3415	CFGNODE snapshotsNode = 0;
3416	CFGLDRGetChildNode (aNode, "Snapshots", 0, &snapshotsNode);
3417	if (snapshotsNode)
3418	{
3419	unsigned cbDisks = 0;
3420	CFGLDRCountChildren (snapshotsNode, "Snapshot", &cbDisks);
3421	for (unsigned i = 0; i < cbDisks && SUCCEEDED (rc); i++)
3422	{
3423	CFGNODE snapshotNode;
3424	CFGLDRGetChildNode (snapshotsNode, "Snapshot", i, &snapshotNode);
3425	ComAssertBreak (snapshotNode, rc = E_FAIL);
3426
3427	rc = loadSnapshot (snapshotNode, aCurSnapshotId, snapshot);
3428
3429	CFGLDRReleaseNode (snapshotNode);
3430	}
3431
3432	CFGLDRReleaseNode (snapshotsNode);
3433	}
3434	}
3435
3436	return rc;
3437	}
3438
3439	/**
3440	* @param aNode <Hardware> node
3441	*/
3442	HRESULT Machine::loadHardware (CFGNODE aNode)
3443	{
3444	AssertReturn (aNode, E_INVALIDARG);
3445	AssertReturn (mType == IsMachine \|\| mType == IsSnapshotMachine, E_FAIL);
3446
3447	/* CPU node (currently not required) */
3448	{
3449	/* default value in case the node is not there */
3450	mHWData->mHWVirtExEnabled = TriStateBool_Default;
3451
3452	CFGNODE cpuNode = 0;
3453	CFGLDRGetChildNode (aNode, "CPU", 0, &cpuNode);
3454	if (cpuNode)
3455	{
3456	CFGNODE hwVirtExNode = 0;
3457	CFGLDRGetChildNode (cpuNode, "HardwareVirtEx", 0, &hwVirtExNode);
3458	if (hwVirtExNode)
3459	{
3460	Bstr hwVirtExEnabled;
3461	CFGLDRQueryBSTR (hwVirtExNode, "enabled", hwVirtExEnabled.asOutParam());
3462	if (hwVirtExEnabled == L"false")
3463	mHWData->mHWVirtExEnabled = TriStateBool_False;
3464	else if (hwVirtExEnabled == L"true")
3465	mHWData->mHWVirtExEnabled = TriStateBool_True;
3466	else
3467	mHWData->mHWVirtExEnabled = TriStateBool_Default;
3468	CFGLDRReleaseNode (hwVirtExNode);
3469	}
3470	CFGLDRReleaseNode (cpuNode);
3471	}
3472	}
3473
3474	/* Memory node (required) */
3475	{
3476	CFGNODE memoryNode = 0;
3477	CFGLDRGetChildNode (aNode, "Memory", 0, &memoryNode);
3478	ComAssertRet (memoryNode, E_FAIL);
3479
3480	uint32_t RAMSize;
3481	CFGLDRQueryUInt32 (memoryNode, "RAMSize", &RAMSize);
3482	mHWData->mMemorySize = RAMSize;
3483	CFGLDRReleaseNode (memoryNode);
3484	}
3485
3486	/* Boot node (required) */
3487	{
3488	/* reset all boot order positions to NoDevice */
3489	for (size_t i = 0; i < ELEMENTS (mHWData->mBootOrder); i++)
3490	mHWData->mBootOrder [i] = DeviceType_NoDevice;
3491
3492	CFGNODE bootNode = 0;
3493	CFGLDRGetChildNode (aNode, "Boot", 0, &bootNode);
3494	ComAssertRet (bootNode, E_FAIL);
3495
3496	HRESULT rc = S_OK;
3497
3498	unsigned cOrder;
3499	CFGLDRCountChildren (bootNode, "Order", &cOrder);
3500	for (unsigned i = 0; i < cOrder; i++)
3501	{
3502	CFGNODE orderNode = 0;
3503	CFGLDRGetChildNode (bootNode, "Order", i, &orderNode);
3504	ComAssertBreak (orderNode, rc = E_FAIL);
3505
3506	/* position (required) */
3507	/* position unicity is guaranteed by XML Schema */
3508	uint32_t position = 0;
3509	CFGLDRQueryUInt32 (orderNode, "position", &position);
3510	-- position;
3511	Assert (position < ELEMENTS (mHWData->mBootOrder));
3512
3513	/* device (required) */
3514	Bstr device;
3515	CFGLDRQueryBSTR (orderNode, "device", device.asOutParam());
3516	if (device == L"None")
3517	mHWData->mBootOrder [position] = DeviceType_NoDevice;
3518	else if (device == L"Floppy")
3519	mHWData->mBootOrder [position] = DeviceType_FloppyDevice;
3520	else if (device == L"DVD")
3521	mHWData->mBootOrder [position] = DeviceType_DVDDevice;
3522	else if (device == L"HardDisk")
3523	mHWData->mBootOrder [position] = DeviceType_HardDiskDevice;
3524	else if (device == L"Network")
3525	mHWData->mBootOrder [position] = DeviceType_NetworkDevice;
3526	else
3527	ComAssertMsgFailed (("Invalid device: %ls\n", device.raw()));
3528
3529	CFGLDRReleaseNode (orderNode);
3530	}
3531
3532	CFGLDRReleaseNode (bootNode);
3533	if (FAILED (rc))
3534	return rc;
3535	}
3536
3537	/* Display node (required) */
3538	{
3539	CFGNODE displayNode = 0;
3540	CFGLDRGetChildNode (aNode, "Display", 0, &displayNode);
3541	ComAssertRet (displayNode, E_FAIL);
3542
3543	uint32_t VRAMSize;
3544	CFGLDRQueryUInt32 (displayNode, "VRAMSize", &VRAMSize);
3545	mHWData->mVRAMSize = VRAMSize;
3546	CFGLDRReleaseNode (displayNode);
3547	}
3548
3549	#ifdef VBOX_VRDP
3550	/* RemoteDisplay node (optional) */
3551	/// @todo (dmik) move the code to VRDPServer
3552	/// @todo r=sunlover: moved. dmik, please review.
3553	{
3554	CFGNODE remoteDisplayNode = 0;
3555	CFGLDRGetChildNode (aNode, "RemoteDisplay", 0, &remoteDisplayNode);
3556	if (remoteDisplayNode)
3557	{
3558	mVRDPServer->loadConfig (remoteDisplayNode);
3559	CFGLDRReleaseNode (remoteDisplayNode);
3560	}
3561	}
3562	#endif
3563
3564	/* BIOS node (required) */
3565	{
3566	CFGNODE biosNode = 0;
3567	CFGLDRGetChildNode (aNode, "BIOS", 0, &biosNode);
3568	ComAssertRet (biosNode, E_FAIL);
3569
3570	HRESULT rc = S_OK;
3571
3572	do
3573	{
3574	/* ACPI */
3575	{
3576	CFGNODE acpiNode = 0;
3577	CFGLDRGetChildNode (biosNode, "ACPI", 0, &acpiNode);
3578	ComAssertBreak (acpiNode, rc = E_FAIL);
3579
3580	bool enabled;
3581	CFGLDRQueryBool (acpiNode, "enabled", &enabled);
3582	mBIOSSettings->COMSETTER(ACPIEnabled)(enabled);
3583	CFGLDRReleaseNode (acpiNode);
3584	}
3585
3586	/* IOAPIC */
3587	{
3588	CFGNODE ioapicNode = 0;
3589	CFGLDRGetChildNode (biosNode, "IOAPIC", 0, &ioapicNode);
3590	if (ioapicNode)
3591	{
3592	bool enabled;
3593	CFGLDRQueryBool (ioapicNode, "enabled", &enabled);
3594	mBIOSSettings->COMSETTER(IOAPICEnabled)(enabled);
3595	CFGLDRReleaseNode (ioapicNode);
3596	}
3597	}
3598
3599	/* Logo (optional) */
3600	{
3601	CFGNODE logoNode = 0;
3602	CFGLDRGetChildNode (biosNode, "Logo", 0, &logoNode);
3603	if (logoNode)
3604	{
3605	bool enabled = false;
3606	CFGLDRQueryBool (logoNode, "fadeIn", &enabled);
3607	mBIOSSettings->COMSETTER(LogoFadeIn)(enabled);
3608	CFGLDRQueryBool (logoNode, "fadeOut", &enabled);
3609	mBIOSSettings->COMSETTER(LogoFadeOut)(enabled);
3610
3611	uint32_t BIOSLogoDisplayTime;
3612	CFGLDRQueryUInt32 (logoNode, "displayTime", &BIOSLogoDisplayTime);
3613	mBIOSSettings->COMSETTER(LogoDisplayTime)(BIOSLogoDisplayTime);
3614
3615	Bstr logoPath;
3616	CFGLDRQueryBSTR (logoNode, "imagePath", logoPath.asOutParam());
3617	mBIOSSettings->COMSETTER(LogoImagePath)(logoPath);
3618
3619	CFGLDRReleaseNode (logoNode);
3620	}
3621	}
3622
3623	/* boot menu (optional) */
3624	{
3625	CFGNODE bootMenuNode = 0;
3626	CFGLDRGetChildNode (biosNode, "BootMenu", 0, &bootMenuNode);
3627	if (bootMenuNode)
3628	{
3629	Bstr modeStr;
3630	BIOSBootMenuMode_T mode;
3631	CFGLDRQueryBSTR (bootMenuNode, "mode", modeStr.asOutParam());
3632	if (modeStr == L"disabled")
3633	mode = BIOSBootMenuMode_Disabled;
3634	else if (modeStr == L"menuonly")
3635	mode = BIOSBootMenuMode_MenuOnly;
3636	else
3637	mode = BIOSBootMenuMode_MessageAndMenu;
3638	mBIOSSettings->COMSETTER(BootMenuMode)(mode);
3639
3640	CFGLDRReleaseNode (bootMenuNode);
3641	}
3642	}
3643	}
3644	while (0);
3645
3646	CFGLDRReleaseNode (biosNode);
3647	if (FAILED (rc))
3648	return rc;
3649	}
3650
3651	/* DVD drive (contains either Image or HostDrive or nothing) */
3652	/// @todo (dmik) move the code to DVDDrive
3653	{
3654	HRESULT rc = S_OK;
3655
3656	CFGNODE dvdDriveNode = 0;
3657	CFGLDRGetChildNode (aNode, "DVDDrive", 0, &dvdDriveNode);
3658	ComAssertRet (dvdDriveNode, E_FAIL);
3659
3660	bool fPassthrough;
3661	CFGLDRQueryBool(dvdDriveNode, "passthrough", &fPassthrough);
3662	mDVDDrive->COMSETTER(Passthrough)(fPassthrough);
3663
3664	CFGNODE typeNode = 0;
3665
3666	do
3667	{
3668	CFGLDRGetChildNode (dvdDriveNode, "Image", 0, &typeNode);
3669	if (typeNode)
3670	{
3671	Guid uuid;
3672	CFGLDRQueryUUID (typeNode, "uuid", uuid.ptr());
3673	rc = mDVDDrive->MountImage (uuid);
3674	}
3675	else
3676	{
3677	CFGLDRGetChildNode (dvdDriveNode, "HostDrive", 0, &typeNode);
3678	if (typeNode)
3679	{
3680	Bstr src;
3681	CFGLDRQueryBSTR (typeNode, "src", src.asOutParam());
3682
3683	/* find the correspoding object */
3684	ComPtr <IHost> host;
3685	rc = mParent->COMGETTER(Host) (host.asOutParam());
3686	ComAssertComRCBreak (rc, rc = rc);
3687
3688	ComPtr <IHostDVDDriveCollection> coll;
3689	rc = host->COMGETTER(DVDDrives) (coll.asOutParam());
3690	ComAssertComRCBreak (rc, rc = rc);
3691
3692	ComPtr <IHostDVDDrive> drive;
3693	rc = coll->FindByName (src, drive.asOutParam());
3694	if (SUCCEEDED (rc))
3695	rc = mDVDDrive->CaptureHostDrive (drive);
3696	else if (rc == E_INVALIDARG)
3697	{
3698	/* the host DVD drive is not currently available. we
3699	* assume it will be available later and create an
3700	* extra object now */
3701	ComObjPtr <HostDVDDrive> hostDrive;
3702	hostDrive.createObject();
3703	rc = hostDrive->init (src);
3704	ComAssertComRCBreak (rc, rc = rc);
3705	rc = mDVDDrive->CaptureHostDrive (hostDrive);
3706	}
3707	else
3708	ComAssertComRCBreak (rc, rc = rc);
3709	}
3710	}
3711	}
3712	while (0);
3713
3714	if (typeNode)
3715	CFGLDRReleaseNode (typeNode);
3716	CFGLDRReleaseNode (dvdDriveNode);
3717
3718	if (FAILED (rc))
3719	return rc;
3720	}
3721
3722	/* Floppy drive (contains either Image or HostDrive or nothing) */
3723	/// @todo (dmik) move the code to FloppyDrive
3724	{
3725	HRESULT rc = S_OK;
3726
3727	CFGNODE driveNode = 0;
3728	CFGLDRGetChildNode (aNode, "FloppyDrive", 0, &driveNode);
3729	ComAssertRet (driveNode, E_FAIL);
3730
3731	BOOL fFloppyEnabled = TRUE;
3732	CFGLDRQueryBool (driveNode, "enabled", (bool*)&fFloppyEnabled);
3733	rc = mFloppyDrive->COMSETTER(Enabled)(fFloppyEnabled);
3734
3735	CFGNODE typeNode = 0;
3736	do
3737	{
3738	CFGLDRGetChildNode (driveNode, "Image", 0, &typeNode);
3739	if (typeNode)
3740	{
3741	Guid uuid;
3742	CFGLDRQueryUUID (typeNode, "uuid", uuid.ptr());
3743	rc = mFloppyDrive->MountImage (uuid);
3744	}
3745	else
3746	{
3747	CFGLDRGetChildNode (driveNode, "HostDrive", 0, &typeNode);
3748	if (typeNode)
3749	{
3750	Bstr src;
3751	CFGLDRQueryBSTR (typeNode, "src", src.asOutParam());
3752
3753	/* find the correspoding object */
3754	ComPtr <IHost> host;
3755	rc = mParent->COMGETTER(Host) (host.asOutParam());
3756	ComAssertComRCBreak (rc, rc = rc);
3757
3758	ComPtr <IHostFloppyDriveCollection> coll;
3759	rc = host->COMGETTER(FloppyDrives) (coll.asOutParam());
3760	ComAssertComRCBreak (rc, rc = rc);
3761
3762	ComPtr <IHostFloppyDrive> drive;
3763	rc = coll->FindByName (src, drive.asOutParam());
3764	if (SUCCEEDED (rc))
3765	rc = mFloppyDrive->CaptureHostDrive (drive);
3766	else if (rc == E_INVALIDARG)
3767	{
3768	/* the host Floppy drive is not currently available. we
3769	* assume it will be available later and create an
3770	* extra object now */
3771	ComObjPtr <HostFloppyDrive> hostDrive;
3772	hostDrive.createObject();
3773	rc = hostDrive->init (src);
3774	ComAssertComRCBreak (rc, rc = rc);
3775	rc = mFloppyDrive->CaptureHostDrive (hostDrive);
3776	}
3777	else
3778	ComAssertComRCBreak (rc, rc = rc);
3779	}
3780	}
3781	}
3782	while (0);
3783
3784	if (typeNode)
3785	CFGLDRReleaseNode (typeNode);
3786	CFGLDRReleaseNode (driveNode);
3787
3788	if (FAILED (rc))
3789	return rc;
3790	}
3791
3792	/* USB Controller */
3793	{
3794	HRESULT rc = mUSBController->loadSettings (aNode);
3795	if (FAILED (rc))
3796	return rc;
3797	}
3798
3799	/* Network node (required) */
3800	/// @todo (dmik) move the code to NetworkAdapter
3801	{
3802	/* we assume that all network adapters are initially disabled
3803	* and detached */
3804
3805	CFGNODE networkNode = 0;
3806	CFGLDRGetChildNode (aNode, "Network", 0, &networkNode);
3807	ComAssertRet (networkNode, E_FAIL);
3808
3809	HRESULT rc = S_OK;
3810
3811	unsigned cAdapters = 0;
3812	CFGLDRCountChildren (networkNode, "Adapter", &cAdapters);
3813	for (unsigned i = 0; i < cAdapters; i++)
3814	{
3815	CFGNODE adapterNode = 0;
3816	CFGLDRGetChildNode (networkNode, "Adapter", i, &adapterNode);
3817	ComAssertBreak (adapterNode, rc = E_FAIL);
3818
3819	/* slot number (required) */
3820	/* slot unicity is guaranteed by XML Schema */
3821	uint32_t slot = 0;
3822	CFGLDRQueryUInt32 (adapterNode, "slot", &slot);
3823	Assert (slot < ELEMENTS (mNetworkAdapters));
3824
3825	/* type */
3826	Bstr adapterType;
3827	CFGLDRQueryBSTR (adapterNode, "type", adapterType.asOutParam());
3828	ComAssertBreak (adapterType, rc = E_FAIL);
3829
3830	/* enabled (required) */
3831	bool enabled = false;
3832	CFGLDRQueryBool (adapterNode, "enabled", &enabled);
3833	/* MAC address (can be null) */
3834	Bstr macAddr;
3835	CFGLDRQueryBSTR (adapterNode, "MACAddress", macAddr.asOutParam());
3836	/* cable (required) */
3837	bool cableConnected;
3838	CFGLDRQueryBool (adapterNode, "cable", &cableConnected);
3839	/* tracing (defaults to false) */
3840	bool traceEnabled;
3841	CFGLDRQueryBool (adapterNode, "trace", &traceEnabled);
3842	Bstr traceFile;
3843	CFGLDRQueryBSTR (adapterNode, "tracefile", traceFile.asOutParam());
3844
3845	mNetworkAdapters [slot]->COMSETTER(Enabled) (enabled);
3846	mNetworkAdapters [slot]->COMSETTER(MACAddress) (macAddr);
3847	mNetworkAdapters [slot]->COMSETTER(CableConnected) (cableConnected);
3848	mNetworkAdapters [slot]->COMSETTER(TraceEnabled) (traceEnabled);
3849	mNetworkAdapters [slot]->COMSETTER(TraceFile) (traceFile);
3850
3851	if (adapterType.compare(Bstr("Am79C970A")) == 0)
3852	mNetworkAdapters [slot]->COMSETTER(AdapterType)(NetworkAdapterType_NetworkAdapterAm79C970A);
3853	else if (adapterType.compare(Bstr("Am79C973")) == 0)
3854	mNetworkAdapters [slot]->COMSETTER(AdapterType)(NetworkAdapterType_NetworkAdapterAm79C973);
3855	else
3856	ComAssertBreak (0, rc = E_FAIL);
3857
3858	CFGNODE attachmentNode = 0;
3859	if (CFGLDRGetChildNode (adapterNode, "NAT", 0, &attachmentNode), attachmentNode)
3860	{
3861	mNetworkAdapters [slot]->AttachToNAT();
3862	}
3863	else
3864	if (CFGLDRGetChildNode (adapterNode, "HostInterface", 0, &attachmentNode), attachmentNode)
3865	{
3866	/* Host Interface Networking */
3867	Bstr name;
3868	CFGLDRQueryBSTR (attachmentNode, "name", name.asOutParam());
3869	#ifdef __WIN__
3870	/* @name can be empty on Win32, but not null */
3871	ComAssertBreak (!name.isNull(), rc = E_FAIL);
3872	#endif
3873	mNetworkAdapters [slot]->COMSETTER(HostInterface) (name);
3874	#ifdef VBOX_WITH_UNIXY_TAP_NETWORKING
3875	Bstr tapSetupApp;
3876	CFGLDRQueryBSTR (attachmentNode, "TAPSetup", tapSetupApp.asOutParam());
3877	Bstr tapTerminateApp;
3878	CFGLDRQueryBSTR (attachmentNode, "TAPTerminate", tapTerminateApp.asOutParam());
3879
3880	mNetworkAdapters [slot]->COMSETTER(TAPSetupApplication) (tapSetupApp);
3881	mNetworkAdapters [slot]->COMSETTER(TAPTerminateApplication) (tapTerminateApp);
3882	#endif // VBOX_WITH_UNIXY_TAP_NETWORKING
3883	mNetworkAdapters [slot]->AttachToHostInterface();
3884	}
3885	else
3886	if (CFGLDRGetChildNode(adapterNode, "InternalNetwork", 0, &attachmentNode), attachmentNode)
3887	{
3888	/* Internal Networking */
3889	Bstr name;
3890	CFGLDRQueryBSTR (attachmentNode, "name", name.asOutParam());
3891	ComAssertBreak (!name.isNull(), rc = E_FAIL);
3892	mNetworkAdapters[slot]->AttachToInternalNetwork();
3893	mNetworkAdapters[slot]->COMSETTER(InternalNetwork) (name);
3894	}
3895	else
3896	{
3897	/* Adapter has no children */
3898	mNetworkAdapters [slot]->Detach();
3899	}
3900	if (attachmentNode)
3901	CFGLDRReleaseNode (attachmentNode);
3902
3903	CFGLDRReleaseNode (adapterNode);
3904	}
3905
3906	CFGLDRReleaseNode (networkNode);
3907	if (FAILED (rc))
3908	return rc;
3909	}
3910
3911	/* AudioAdapter node (required) */
3912	/// @todo (dmik) move the code to AudioAdapter
3913	{
3914	CFGNODE audioAdapterNode = 0;
3915	CFGLDRGetChildNode (aNode, "AudioAdapter", 0, &audioAdapterNode);
3916	ComAssertRet (audioAdapterNode, E_FAIL);
3917
3918	// is the adapter enabled?
3919	bool enabled = false;
3920	CFGLDRQueryBool (audioAdapterNode, "enabled", &enabled);
3921	mAudioAdapter->COMSETTER(Enabled) (enabled);
3922	// now check the audio driver
3923	Bstr driver;
3924	CFGLDRQueryBSTR (audioAdapterNode, "driver", driver.asOutParam());
3925	AudioDriverType_T audioDriver;
3926	audioDriver = AudioDriverType_NullAudioDriver;
3927	if (driver == L"null")
3928	; // Null has been set above
3929	#ifdef __WIN__
3930	else if (driver == L"winmm")
3931	#ifdef VBOX_WITH_WINMM
3932	audioDriver = AudioDriverType_WINMMAudioDriver;
3933	#else
3934	// fall back to dsound
3935	audioDriver = AudioDriverType_DSOUNDAudioDriver;
3936	#endif
3937	else if (driver == L"dsound")
3938	audioDriver = AudioDriverType_DSOUNDAudioDriver;
3939	#endif // __WIN__
3940	#ifdef __LINUX__
3941	else if (driver == L"oss")
3942	audioDriver = AudioDriverType_OSSAudioDriver;
3943	else if (driver == L"alsa")
3944	#ifdef VBOX_WITH_ALSA
3945	audioDriver = AudioDriverType_ALSAAudioDriver;
3946	#else
3947	// fall back to OSS
3948	audioDriver = AudioDriverType_OSSAudioDriver;
3949	#endif
3950	#endif // __LINUX__
3951	#ifdef __DARWIN__
3952	else if (driver == L"coreaudio")
3953	audioDriver = AudioDriverType_CoreAudioDriver;
3954	#endif
3955	else
3956	AssertMsgFailed (("Invalid driver: %ls\n", driver.raw()));
3957	mAudioAdapter->COMSETTER(AudioDriver) (audioDriver);
3958
3959	CFGLDRReleaseNode (audioAdapterNode);
3960	}
3961
3962	/* Shared folders (optional) */
3963	/// @todo (dmik) make required on next format change!
3964	do
3965	{
3966	CFGNODE sharedFoldersNode = 0;
3967	CFGLDRGetChildNode (aNode, "SharedFolders", 0, &sharedFoldersNode);
3968
3969	if (!sharedFoldersNode)
3970	break;
3971
3972	HRESULT rc = S_OK;
3973
3974	unsigned cFolders = 0;
3975	CFGLDRCountChildren (sharedFoldersNode, "SharedFolder", &cFolders);
3976
3977	for (unsigned i = 0; i < cFolders; i++)
3978	{
3979	CFGNODE folderNode = 0;
3980	CFGLDRGetChildNode (sharedFoldersNode, "SharedFolder", i, &folderNode);
3981	ComAssertBreak (folderNode, rc = E_FAIL);
3982
3983	// folder logical name (required)
3984	Bstr name;
3985	CFGLDRQueryBSTR (folderNode, "name", name.asOutParam());
3986
3987	// folder host path (required)
3988	Bstr hostPath;
3989	CFGLDRQueryBSTR (folderNode, "hostPath", hostPath.asOutParam());
3990
3991	rc = CreateSharedFolder (name, hostPath);
3992	if (FAILED (rc))
3993	break;
3994
3995	CFGLDRReleaseNode (folderNode);
3996	}
3997
3998	CFGLDRReleaseNode (sharedFoldersNode);
3999	if (FAILED (rc))
4000	return rc;
4001	}
4002	while (0);
4003
4004	/* Clipboard node (currently not required) */
4005	/// @todo (dmik) make required on next format change!
4006	{
4007	/* default value in case the node is not there */
4008	mHWData->mClipboardMode = ClipboardMode_ClipDisabled;
4009
4010	CFGNODE clipNode = 0;
4011	CFGLDRGetChildNode (aNode, "Clipboard", 0, &clipNode);
4012	if (clipNode)
4013	{
4014	Bstr mode;
4015	CFGLDRQueryBSTR (clipNode, "mode", mode.asOutParam());
4016	if (mode == L"Disabled")
4017	mHWData->mClipboardMode = ClipboardMode_ClipDisabled;
4018	else if (mode == L"HostToGuest")
4019	mHWData->mClipboardMode = ClipboardMode_ClipHostToGuest;
4020	else if (mode == L"GuestToHost")
4021	mHWData->mClipboardMode = ClipboardMode_ClipGuestToHost;
4022	else if (mode == L"Bidirectional")
4023	mHWData->mClipboardMode = ClipboardMode_ClipBidirectional;
4024	else
4025	AssertMsgFailed (("%ls clipboard mode is invalid\n", mode.raw()));
4026	CFGLDRReleaseNode (clipNode);
4027	}
4028	}
4029
4030	return S_OK;
4031	}
4032
4033	/**
4034	* @param aNode <HardDiskAttachments> node
4035	* @param aRegistered true when the machine is being loaded on VirtualBox
4036	* startup, or when a snapshot is being loaded (wchich
4037	* currently can happen on startup only)
4038	* @param aSnapshotId pointer to the snapshot ID if this is a snapshot machine
4039	*/
4040	HRESULT Machine::loadHardDisks (CFGNODE aNode, bool aRegistered,
4041	const Guid aSnapshotId / = NULL */)
4042	{
4043	AssertReturn (aNode, E_INVALIDARG);
4044	AssertReturn ((mType == IsMachine && aSnapshotId == NULL) \|\|
4045	(mType == IsSnapshotMachine && aSnapshotId != NULL), E_FAIL);
4046
4047	HRESULT rc = S_OK;
4048
4049	unsigned cbDisks = 0;
4050	CFGLDRCountChildren (aNode, "HardDiskAttachment", &cbDisks);
4051
4052	if (!aRegistered && cbDisks > 0)
4053	{
4054	/* when the machine is being loaded (opened) from a file, it cannot
4055	* have hard disks attached (this should not happen normally,
4056	* because we don't allow to attach hard disks to an unregistered
4057	* VM at all */
4058	return setError (E_FAIL,
4059	tr ("Unregistered machine '%ls' cannot have hard disks attached "
4060	"(found %d hard disk attachments)"),
4061	mUserData->mName.raw(), cbDisks);
4062	}
4063
4064	for (unsigned i = 0; i < cbDisks && SUCCEEDED (rc); ++ i)
4065	{
4066	CFGNODE hdNode;
4067	CFGLDRGetChildNode (aNode, "HardDiskAttachment", i, &hdNode);
4068	ComAssertRet (hdNode, E_FAIL);
4069
4070	do
4071	{
4072	/* hardDisk uuid (required) */
4073	Guid uuid;
4074	CFGLDRQueryUUID (hdNode, "hardDisk", uuid.ptr());
4075	/* bus (controller) type (required) */
4076	Bstr bus;
4077	CFGLDRQueryBSTR (hdNode, "bus", bus.asOutParam());
4078	/* device (required) */
4079	Bstr device;
4080	CFGLDRQueryBSTR (hdNode, "device", device.asOutParam());
4081
4082	/* find a hard disk by UUID */
4083	ComObjPtr <HardDisk> hd;
4084	rc = mParent->getHardDisk (uuid, hd);
4085	if (FAILED (rc))
4086	break;
4087
4088	AutoLock hdLock (hd);
4089
4090	if (!hd->machineId().isEmpty())
4091	{
4092	rc = setError (E_FAIL,
4093	tr ("Hard disk '%ls' with UUID {%s} is already "
4094	"attached to a machine with UUID {%s} (see '%ls')"),
4095	hd->toString().raw(), uuid.toString().raw(),
4096	hd->machineId().toString().raw(),
4097	mData->mConfigFileFull.raw());
4098	break;
4099	}
4100
4101	if (hd->type() == HardDiskType_ImmutableHardDisk)
4102	{
4103	rc = setError (E_FAIL,
4104	tr ("Immutable hard disk '%ls' with UUID {%s} cannot be "
4105	"directly attached to a machine (see '%ls')"),
4106	hd->toString().raw(), uuid.toString().raw(),
4107	mData->mConfigFileFull.raw());
4108	break;
4109	}
4110
4111	/* attach the device */
4112	DiskControllerType_T ctl = DiskControllerType_InvalidController;
4113	LONG dev = -1;
4114
4115	if (bus == L"ide0")
4116	{
4117	ctl = DiskControllerType_IDE0Controller;
4118	if (device == L"master")
4119	dev = 0;
4120	else if (device == L"slave")
4121	dev = 1;
4122	else
4123	ComAssertMsgFailedBreak (("Invalid device: %ls\n", device.raw()),
4124	rc = E_FAIL);
4125	}
4126	else if (bus == L"ide1")
4127	{
4128	ctl = DiskControllerType_IDE1Controller;
4129	if (device == L"master")
4130	rc = setError (E_FAIL, tr("Could not attach a disk as a master "
4131	"device on the secondary controller"));
4132	else if (device == L"slave")
4133	dev = 1;
4134	else
4135	ComAssertMsgFailedBreak (("Invalid device: %ls\n", device.raw()),
4136	rc = E_FAIL);
4137	}
4138	else
4139	ComAssertMsgFailedBreak (("Invalid bus: %ls\n", bus.raw()),
4140	rc = E_FAIL);
4141
4142	ComObjPtr <HardDiskAttachment> attachment;
4143	attachment.createObject();
4144	rc = attachment->init (hd, ctl, dev, false /* aDirty */);
4145	if (FAILED (rc))
4146	break;
4147
4148	/* associate the hard disk with this machine */
4149	hd->setMachineId (mData->mUuid);
4150
4151	/* associate the hard disk with the given snapshot ID */
4152	if (mType == IsSnapshotMachine)
4153	hd->setSnapshotId (*aSnapshotId);
4154
4155	mHDData->mHDAttachments.push_back (attachment);
4156	}
4157	while (0);
4158
4159	CFGLDRReleaseNode (hdNode);
4160	}
4161
4162	return rc;
4163	}
4164
4165	/**
4166	* Creates a config loader and loads the settings file.
4167	*
4168	* @param aIsNew \|true\| if a newly created settings file is to be opened
4169	* (must be the case only when called from #saveSettings())
4170	*
4171	* @note
4172	* XML Schema errors are not detected by this method because
4173	* it assumes that it will load settings from an exclusively locked
4174	* file (using a file handle) that was previously validated when opened
4175	* for the first time. Thus, this method should be used only when
4176	* it's necessary to modify (save) the settings file.
4177	*
4178	* @note The object must be locked at least for reading before calling
4179	* this method.
4180	*/
4181	HRESULT Machine::openConfigLoader (CFGHANDLE aLoader, bool aIsNew / = false */)
4182	{
4183	AssertReturn (aLoader, E_FAIL);
4184
4185	/* The settings file must be created and locked at this point */
4186	ComAssertRet (isConfigLocked(), E_FAIL);
4187
4188	/* load the config file */
4189	int vrc = CFGLDRLoad (aLoader,
4190	Utf8Str (mData->mConfigFileFull), mData->mHandleCfgFile,
4191	aIsNew ? NULL : XmlSchemaNS, true, cfgLdrEntityResolver,
4192	NULL);
4193	ComAssertRCRet (vrc, E_FAIL);
4194
4195	return S_OK;
4196	}
4197
4198	/**
4199	* Closes the config loader previously created by #openConfigLoader().
4200	* If \a aSaveBeforeClose is true, then the config is saved to the settings file
4201	* before closing. If saving fails, a proper error message is set.
4202	*
4203	* @param aSaveBeforeClose whether to save the config before closing or not
4204	*/
4205	HRESULT Machine::closeConfigLoader (CFGHANDLE aLoader, bool aSaveBeforeClose)
4206	{
4207	HRESULT rc = S_OK;
4208
4209	if (aSaveBeforeClose)
4210	{
4211	char *loaderError = NULL;
4212	int vrc = CFGLDRSave (aLoader, &loaderError);
4213	if (VBOX_FAILURE (vrc))
4214	{
4215	rc = setError (E_FAIL,
4216	tr ("Could not save the settings file '%ls' (%Vrc)%s%s"),
4217	mData->mConfigFileFull.raw(), vrc,
4218	loaderError ? ".\n" : "", loaderError ? loaderError : "");
4219	if (loaderError)
4220	RTMemTmpFree (loaderError);
4221	}
4222	}
4223
4224	CFGLDRFree (aLoader);
4225
4226	return rc;
4227	}
4228
4229	/**
4230	* Searches for a <Snapshot> node for the given snapshot.
4231	* If the search is successful, \a aSnapshotNode will contain the found node.
4232	* In this case, \a aSnapshotsNode can be NULL meaning the found node is a
4233	* direct child of \a aMachineNode.
4234	*
4235	* If the search fails, a failure is returned and both \a aSnapshotsNode and
4236	* \a aSnapshotNode are set to 0.
4237	*
4238	* @param aSnapshot snapshot to search for
4239	* @param aMachineNode <Machine> node to start from
4240	* @param aSnapshotsNode <Snapshots> node containing the found <Snapshot> node
4241	* (may be NULL if the caller is not interested)
4242	* @param aSnapshotNode found <Snapshot> node
4243	*/
4244	HRESULT Machine::findSnapshotNode (Snapshot *aSnapshot, CFGNODE aMachineNode,
4245	CFGNODE aSnapshotsNode, CFGNODE aSnapshotNode)
4246	{
4247	AssertReturn (aSnapshot && aMachineNode && aSnapshotNode, E_FAIL);
4248
4249	if (aSnapshotsNode)
4250	*aSnapshotsNode = 0;
4251	*aSnapshotNode = 0;
4252
4253	// build the full uuid path (from the fist parent to the given snapshot)
4254	std::list <Guid> path;
4255	{
4256	ComObjPtr <Snapshot> parent = aSnapshot;
4257	while (parent)
4258	{
4259	path.push_front (parent->data().mId);
4260	parent = parent->parent();
4261	}
4262	}
4263
4264	CFGNODE snapshotsNode = aMachineNode;
4265	CFGNODE snapshotNode = 0;
4266
4267	for (std::list <Guid>::const_iterator it = path.begin();
4268	it != path.end();
4269	++ it)
4270	{
4271	if (snapshotNode)
4272	{
4273	// proceed to the nested <Snapshots> node
4274	Assert (snapshotsNode);
4275	if (snapshotsNode != aMachineNode)
4276	{
4277	CFGLDRReleaseNode (snapshotsNode);
4278	snapshotsNode = 0;
4279	}
4280	CFGLDRGetChildNode (snapshotNode, "Snapshots", 0, &snapshotsNode);
4281	CFGLDRReleaseNode (snapshotNode);
4282	snapshotNode = 0;
4283	}
4284
4285	AssertReturn (snapshotsNode, E_FAIL);
4286
4287	unsigned count = 0, i = 0;
4288	CFGLDRCountChildren (snapshotsNode, "Snapshot", &count);
4289	for (; i < count; ++ i)
4290	{
4291	snapshotNode = 0;
4292	CFGLDRGetChildNode (snapshotsNode, "Snapshot", i, &snapshotNode);
4293	Guid id;
4294	CFGLDRQueryUUID (snapshotNode, "uuid", id.ptr());
4295	if (id == (*it))
4296	{
4297	// we keep (don't release) snapshotNode and snapshotsNode
4298	break;
4299	}
4300	CFGLDRReleaseNode (snapshotNode);
4301	snapshotNode = 0;
4302	}
4303
4304	if (i == count)
4305	{
4306	// the next uuid is not found, no need to continue...
4307	AssertFailed();
4308	if (snapshotsNode != aMachineNode)
4309	{
4310	CFGLDRReleaseNode (snapshotsNode);
4311	snapshotsNode = 0;
4312	}
4313	break;
4314	}
4315	}
4316
4317	// we must always succesfully find the node
4318	AssertReturn (snapshotNode, E_FAIL);
4319	AssertReturn (snapshotsNode, E_FAIL);
4320
4321	if (aSnapshotsNode)
4322	*aSnapshotsNode = snapshotsNode != aMachineNode ? snapshotsNode : 0;
4323	*aSnapshotNode = snapshotNode;
4324
4325	return S_OK;
4326	}
4327
4328	/**
4329	* Returns the snapshot with the given UUID or fails of no such snapshot.
4330	*
4331	* @param aId snapshot UUID to find (empty UUID refers the first snapshot)
4332	* @param aSnapshot where to return the found snapshot
4333	* @param aSetError true to set extended error info on failure
4334	*/
4335	HRESULT Machine::findSnapshot (const Guid &aId, ComObjPtr <Snapshot> &aSnapshot,
4336	bool aSetError /* = false */)
4337	{
4338	if (!mData->mFirstSnapshot)
4339	{
4340	if (aSetError)
4341	return setError (E_FAIL,
4342	tr ("This machine does not have any snapshots"));
4343	return E_FAIL;
4344	}
4345
4346	if (aId.isEmpty())
4347	aSnapshot = mData->mFirstSnapshot;
4348	else
4349	aSnapshot = mData->mFirstSnapshot->findChildOrSelf (aId);
4350
4351	if (!aSnapshot)
4352	{
4353	if (aSetError)
4354	return setError (E_FAIL,
4355	tr ("Could not find a snapshot with UUID {%s}"),
4356	aId.toString().raw());
4357	return E_FAIL;
4358	}
4359
4360	return S_OK;
4361	}
4362
4363	/**
4364	* Returns the snapshot with the given name or fails of no such snapshot.
4365	*
4366	* @param aName snapshot name to find
4367	* @param aSnapshot where to return the found snapshot
4368	* @param aSetError true to set extended error info on failure
4369	*/
4370	HRESULT Machine::findSnapshot (const BSTR aName, ComObjPtr <Snapshot> &aSnapshot,
4371	bool aSetError /* = false */)
4372	{
4373	AssertReturn (aName, E_INVALIDARG);
4374
4375	if (!mData->mFirstSnapshot)
4376	{
4377	if (aSetError)
4378	return setError (E_FAIL,
4379	tr ("This machine does not have any snapshots"));
4380	return E_FAIL;
4381	}
4382
4383	aSnapshot = mData->mFirstSnapshot->findChildOrSelf (aName);
4384
4385	if (!aSnapshot)
4386	{
4387	if (aSetError)
4388	return setError (E_FAIL,
4389	tr ("Could not find a snapshot named '%ls'"), aName);
4390	return E_FAIL;
4391	}
4392
4393	return S_OK;
4394	}
4395
4396	/**
4397	* Searches for an attachment that contains the given hard disk.
4398	* The hard disk must be associated with some VM and can be optionally
4399	* associated with some snapshot. If the attachment is stored in the snapshot
4400	* (i.e. the hard disk is associated with some snapshot), @a aSnapshot
4401	* will point to a non-null object on output.
4402	*
4403	* @param aHd hard disk to search an attachment for
4404	* @param aMachine where to store the hard disk's machine (can be NULL)
4405	* @param aSnapshot where to store the hard disk's snapshot (can be NULL)
4406	* @param aHda where to store the hard disk's attachment (can be NULL)
4407	*
4408	*
4409	* @note
4410	* It is assumed that the machine where the attachment is found,
4411	* is already placed to the Discarding state, when this method is called.
4412	* @note
4413	* The object returned in @a aHda is the attachment from the snapshot
4414	* machine if the hard disk is associated with the snapshot, not from the
4415	* primary machine object returned returned in @a aMachine.
4416	*/
4417	HRESULT Machine::findHardDiskAttachment (const ComObjPtr <HardDisk> &aHd,
4418	ComObjPtr <Machine> *aMachine,
4419	ComObjPtr <Snapshot> *aSnapshot,
4420	ComObjPtr <HardDiskAttachment> *aHda)
4421	{
4422	AssertReturn (!aHd.isNull(), E_INVALIDARG);
4423
4424	Guid mid = aHd->machineId();
4425	Guid sid = aHd->snapshotId();
4426
4427	AssertReturn (!mid.isEmpty(), E_INVALIDARG);
4428
4429	ComObjPtr <Machine> m;
4430	mParent->getMachine (mid, m);
4431	ComAssertRet (!m.isNull(), E_FAIL);
4432
4433	HDData::HDAttachmentList *attachments = &m->mHDData->mHDAttachments;
4434
4435	ComObjPtr <Snapshot> s;
4436	if (!sid.isEmpty())
4437	{
4438	m->findSnapshot (sid, s);
4439	ComAssertRet (!s.isNull(), E_FAIL);
4440	attachments = &s->data().mMachine->mHDData->mHDAttachments;
4441	}
4442
4443	AssertReturn (attachments, E_FAIL);
4444
4445	for (HDData::HDAttachmentList::const_iterator it = attachments->begin();
4446	it != attachments->end();
4447	++ it)
4448	{
4449	if ((*it)->hardDisk() == aHd)
4450	{
4451	if (aMachine) *aMachine = m;
4452	if (aSnapshot) *aSnapshot = s;
4453	if (aHda) aHda = (it);
4454	return S_OK;
4455	}
4456	}
4457
4458	ComAssertFailed();
4459	return E_FAIL;
4460	}
4461
4462	/**
4463	* Helper for #saveSettings. Cares about renaming the settings directory and
4464	* file if the machine name was changed and about creating a new settings file
4465	* if this is a new machine.
4466	*
4467	* @note Must be never called directly.
4468	*
4469	* @param aRenamed receives \|true\| if the name was changed and the settings
4470	* file was renamed as a result, or \|false\| otherwise. The
4471	* value makes sense only on success.
4472	* @param aNew receives \|true\| if a virgin settings file was created.
4473	*/
4474	HRESULT Machine::prepareSaveSettings (bool &aRenamed, bool &aNew)
4475	{
4476	HRESULT rc = S_OK;
4477
4478	aRenamed = false;
4479
4480	/* if we're ready and isConfigLocked() is FALSE then it means
4481	* that no config file exists yet (we will create a virgin one) */
4482	aNew = !isConfigLocked();
4483
4484	/* attempt to rename the settings file if machine name is changed */
4485	if (mUserData->mNameSync &&
4486	mUserData.isBackedUp() &&
4487	mUserData.backedUpData()->mName != mUserData->mName)
4488	{
4489	aRenamed = true;
4490
4491	if (!aNew)
4492	{
4493	/* unlock the old config file */
4494	rc = unlockConfig();
4495	CheckComRCReturnRC (rc);
4496	}
4497
4498	bool dirRenamed = false;
4499	bool fileRenamed = false;
4500
4501	Utf8Str configFile, newConfigFile;
4502	Utf8Str configDir, newConfigDir;
4503
4504	do
4505	{
4506	int vrc = VINF_SUCCESS;
4507
4508	Utf8Str name = mUserData.backedUpData()->mName;
4509	Utf8Str newName = mUserData->mName;
4510
4511	configFile = mData->mConfigFileFull;
4512
4513	/* first, rename the directory if it matches the machine name */
4514	configDir = configFile;
4515	RTPathStripFilename (configDir.mutableRaw());
4516	newConfigDir = configDir;
4517	if (RTPathFilename (configDir) == name)
4518	{
4519	RTPathStripFilename (newConfigDir.mutableRaw());
4520	newConfigDir = Utf8StrFmt ("%s%c%s",
4521	newConfigDir.raw(), RTPATH_DELIMITER, newName.raw());
4522	/* new dir and old dir cannot be equal here because of 'if'
4523	* above and because name != newName */
4524	Assert (configDir != newConfigDir);
4525	if (!aNew)
4526	{
4527	/* perform real rename only if the machine is not new */
4528	vrc = RTPathRename (configDir.raw(), newConfigDir.raw(), 0);
4529	if (VBOX_FAILURE (vrc))
4530	{
4531	rc = setError (E_FAIL,
4532	tr ("Could not rename the directory '%s' to '%s' "
4533	"to save the settings file (%Vrc)"),
4534	configDir.raw(), newConfigDir.raw(), vrc);
4535	break;
4536	}
4537	dirRenamed = true;
4538	}
4539	}
4540
4541	newConfigFile = Utf8StrFmt ("%s%c%s.xml",
4542	newConfigDir.raw(), RTPATH_DELIMITER, newName.raw());
4543
4544	/* then try to rename the settings file itself */
4545	if (newConfigFile != configFile)
4546	{
4547	/* get the path to old settings file in renamed directory */
4548	configFile = Utf8StrFmt ("%s%c%s",
4549	newConfigDir.raw(), RTPATH_DELIMITER,
4550	RTPathFilename (configFile));
4551	if (!aNew)
4552	{
4553	/* perform real rename only if the machine is not new */
4554	vrc = RTFileRename (configFile.raw(), newConfigFile.raw(), 0);
4555	if (VBOX_FAILURE (vrc))
4556	{
4557	rc = setError (E_FAIL,
4558	tr ("Could not rename the settings file '%s' to '%s' "
4559	"(%Vrc)"),
4560	configFile.raw(), newConfigFile.raw(), vrc);
4561	break;
4562	}
4563	fileRenamed = true;
4564	}
4565	}
4566
4567	/* update mConfigFileFull amd mConfigFile */
4568	Bstr oldConfigFileFull = mData->mConfigFileFull;
4569	Bstr oldConfigFile = mData->mConfigFile;
4570	mData->mConfigFileFull = newConfigFile;
4571	/* try to get the relative path for mConfigFile */
4572	Utf8Str path = newConfigFile;
4573	mParent->calculateRelativePath (path, path);
4574	mData->mConfigFile = path;
4575
4576	/* last, try to update the global settings with the new path */
4577	if (mData->mRegistered)
4578	{
4579	rc = mParent->updateSettings (configDir, newConfigDir);
4580	if (FAILED (rc))
4581	{
4582	/* revert to old values */
4583	mData->mConfigFileFull = oldConfigFileFull;
4584	mData->mConfigFile = oldConfigFile;
4585	break;
4586	}
4587	}
4588
4589	/* update the snapshot folder */
4590	path = mUserData->mSnapshotFolderFull;
4591	if (RTPathStartsWith (path, configDir))
4592	{
4593	path = Utf8StrFmt ("%s%s", newConfigDir.raw(),
4594	path.raw() + configDir.length());
4595	mUserData->mSnapshotFolderFull = path;
4596	calculateRelativePath (path, path);
4597	mUserData->mSnapshotFolder = path;
4598	}
4599
4600	/* update the saved state file path */
4601	path = mSSData->mStateFilePath;
4602	if (RTPathStartsWith (path, configDir))
4603	{
4604	path = Utf8StrFmt ("%s%s", newConfigDir.raw(),
4605	path.raw() + configDir.length());
4606	mSSData->mStateFilePath = path;
4607	}
4608
4609	/* Update saved state file paths of all online snapshots.
4610	* Note that saveSettings() will recognize name change
4611	* and will save all snapshots in this case. */
4612	if (mData->mFirstSnapshot)
4613	mData->mFirstSnapshot->updateSavedStatePaths (configDir,
4614	newConfigDir);
4615	}
4616	while (0);
4617
4618	if (FAILED (rc))
4619	{
4620	/* silently try to rename everything back */
4621	if (fileRenamed)
4622	RTFileRename (newConfigFile.raw(), configFile.raw(), 0);
4623	if (dirRenamed)
4624	RTPathRename (newConfigDir.raw(), configDir.raw(), 0);
4625	}
4626
4627	if (!aNew)
4628	{
4629	/* lock the config again */
4630	HRESULT rc2 = lockConfig();
4631	if (SUCCEEDED (rc))
4632	rc = rc2;
4633	}
4634
4635	CheckComRCReturnRC (rc);
4636	}
4637
4638	if (aNew)
4639	{
4640	/* create a virgin config file */
4641	int vrc = VINF_SUCCESS;
4642
4643	/* ensure the settings directory exists */
4644	Utf8Str path = mData->mConfigFileFull;
4645	RTPathStripFilename (path.mutableRaw());
4646	if (!RTDirExists (path))
4647	{
4648	vrc = RTDirCreateFullPath (path, 0777);
4649	if (VBOX_FAILURE (vrc))
4650	{
4651	return setError (E_FAIL,
4652	tr ("Could not create a directory '%s' "
4653	"to save the settings file (%Vrc)"),
4654	path.raw(), vrc);
4655	}
4656	}
4657
4658	/* Note: open flags must correlated with RTFileOpen() in lockConfig() */
4659	path = Utf8Str (mData->mConfigFileFull);
4660	vrc = RTFileOpen (&mData->mHandleCfgFile, path,
4661	RTFILE_O_READWRITE \| RTFILE_O_CREATE \|
4662	RTFILE_O_DENY_WRITE);
4663	if (VBOX_SUCCESS (vrc))
4664	{
4665	vrc = RTFileWrite (mData->mHandleCfgFile,
4666	(void *) DefaultMachineConfig,
4667	sizeof (DefaultMachineConfig), NULL);
4668	}
4669	if (VBOX_FAILURE (vrc))
4670	{
4671	mData->mHandleCfgFile = NIL_RTFILE;
4672	return setError (E_FAIL,
4673	tr ("Could not create the settings file '%s' (%Vrc)"),
4674	path.raw(), vrc);
4675	}
4676	/* we do not close the file to simulate lockConfig() */
4677	}
4678
4679	return rc;
4680	}
4681
4682	/**
4683	* Saves machine data, user data and hardware data.
4684	*
4685	* @param aMarkCurStateAsModified
4686	* if true (default), mData->mCurrentStateModified will be set to
4687	* what #isReallyModified() returns prior to saving settings to a file,
4688	* otherwise the current value of mData->mCurrentStateModified will be
4689	* saved.
4690	* @param aInformCallbacksAnyway
4691	* if true, callbacks will be informed even if #isReallyModified()
4692	* returns false. This is necessary for cases when we change machine data
4693	* diectly, not through the backup()/commit() mechanism.
4694	*
4695	* @note Locks mParent (only in some cases, and only when #isConfigLocked() is
4696	* \|TRUE\|, see the #prepareSaveSettings() code for details) +
4697	* this object + children for writing.
4698	*/
4699	HRESULT Machine::saveSettings (bool aMarkCurStateAsModified /* = true */,
4700	bool aInformCallbacksAnyway /* = false */)
4701	{
4702	LogFlowThisFuncEnter();
4703
4704	/// @todo (dmik) I guess we should lock all our child objects here
4705	// (such as mVRDPServer etc.) to ensure they are not changed
4706	// until completely saved to disk and committed
4707
4708	/// @todo (dmik) also, we need to delegate saving child objects' settings
4709	// to objects themselves to ensure operations 'commit + save changes'
4710	// are atomic (amd done from the object's lock so that nobody can change
4711	// settings again until completely saved).
4712
4713	AssertReturn (mType == IsMachine \|\| mType == IsSessionMachine, E_FAIL);
4714
4715	bool wasModified;
4716
4717	if (aMarkCurStateAsModified)
4718	{
4719	/*
4720	* We ignore changes to user data when setting mCurrentStateModified
4721	* because the current state will not differ from the current snapshot
4722	* if only user data has been changed (user data is shared by all
4723	* snapshots).
4724	*/
4725	mData->mCurrentStateModified = isReallyModified (true /* aIgnoreUserData */);
4726	wasModified = mUserData.hasActualChanges() \|\| mData->mCurrentStateModified;
4727	}
4728	else
4729	{
4730	wasModified = isReallyModified();
4731	}
4732
4733	HRESULT rc = S_OK;
4734
4735	/* First, prepare to save settings. It will will care about renaming the
4736	* settings directory and file if the machine name was changed and about
4737	* creating a new settings file if this is a new machine. */
4738	bool isRenamed = false;
4739	bool isNew = false;
4740	rc = prepareSaveSettings (isRenamed, isNew);
4741	CheckComRCReturnRC (rc);
4742
4743	/* then, open the settings file */
4744	CFGHANDLE configLoader = 0;
4745	rc = openConfigLoader (&configLoader, isNew);
4746	CheckComRCReturnRC (rc);
4747
4748	/* save all snapshots when the machine name was changed since
4749	* it may affect saved state file paths for online snapshots (see
4750	* #openConfigLoader() for details) */
4751	bool updateAllSnapshots = isRenamed;
4752
4753	/* commit before saving, since it may change settings
4754	* (for example, perform fixup of lazy hard disk changes) */
4755	rc = commit();
4756	if (FAILED (rc))
4757	{
4758	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
4759	return rc;
4760	}
4761
4762	/* include hard disk changes to the modified flag */
4763	wasModified \|= mHDData->mHDAttachmentsChanged;
4764	if (aMarkCurStateAsModified)
4765	mData->mCurrentStateModified \|= BOOL (mHDData->mHDAttachmentsChanged);
4766
4767
4768	CFGNODE machineNode = 0;
4769	/* create if not exists */
4770	CFGLDRCreateNode (configLoader, "VirtualBox/Machine", &machineNode);
4771
4772	do
4773	{
4774	ComAssertBreak (machineNode, rc = E_FAIL);
4775
4776	/* uuid (required) */
4777	Assert (mData->mUuid);
4778	CFGLDRSetUUID (machineNode, "uuid", mData->mUuid.raw());
4779
4780	/* name (required) */
4781	Assert (!mUserData->mName.isEmpty());
4782	CFGLDRSetBSTR (machineNode, "name", mUserData->mName);
4783
4784	/* nameSync (optional, default is true) */
4785	if (!mUserData->mNameSync)
4786	CFGLDRSetBool (machineNode, "nameSync", false);
4787	else
4788	CFGLDRDeleteAttribute (machineNode, "nameSync");
4789
4790	/* Description node (optional) */
4791	if (!mUserData->mDescription.isNull())
4792	{
4793	CFGNODE descNode = 0;
4794	CFGLDRCreateChildNode (machineNode, "Description", &descNode);
4795	Assert (descNode);
4796	CFGLDRSetBSTR (descNode, NULL, mUserData->mDescription);
4797	CFGLDRReleaseNode (descNode);
4798	}
4799	else
4800	{
4801	CFGNODE descNode = 0;
4802	CFGLDRGetChildNode (machineNode, "Description", 0, &descNode);
4803	if (descNode)
4804	CFGLDRDeleteNode (descNode);
4805	}
4806
4807	/* OSType (required) */
4808	{
4809	Bstr osTypeID;
4810	rc = mUserData->mOSType->COMGETTER(Id) (osTypeID.asOutParam());
4811	ComAssertComRCBreak (rc, rc = rc);
4812	Assert (!osTypeID.isNull());
4813	CFGLDRSetBSTR (machineNode, "OSType", osTypeID);
4814	}
4815
4816	/* stateFile (optional) */
4817	if (mData->mMachineState == MachineState_Saved)
4818	{
4819	Assert (!mSSData->mStateFilePath.isEmpty());
4820	/* try to make the file name relative to the settings file dir */
4821	Utf8Str stateFilePath = mSSData->mStateFilePath;
4822	calculateRelativePath (stateFilePath, stateFilePath);
4823	CFGLDRSetString (machineNode, "stateFile", stateFilePath);
4824	}
4825	else
4826	{
4827	Assert (mSSData->mStateFilePath.isNull());
4828	CFGLDRDeleteAttribute (machineNode, "stateFile");
4829	}
4830
4831	/* currentSnapshot ID (optional) */
4832	if (!mData->mCurrentSnapshot.isNull())
4833	{
4834	Assert (!mData->mFirstSnapshot.isNull());
4835	CFGLDRSetUUID (machineNode, "currentSnapshot",
4836	mData->mCurrentSnapshot->data().mId);
4837	}
4838	else
4839	{
4840	Assert (mData->mFirstSnapshot.isNull());
4841	CFGLDRDeleteAttribute (machineNode, "currentSnapshot");
4842	}
4843
4844	/* snapshotFolder (optional) */
4845	if (mUserData->mSnapshotFolder)
4846	CFGLDRSetBSTR (machineNode, "snapshotFolder", mUserData->mSnapshotFolder);
4847	else
4848	CFGLDRDeleteAttribute (machineNode, "snapshotFolder");
4849
4850	/* currentStateModified (optional, default is yes) */
4851	if (!mData->mCurrentStateModified)
4852	CFGLDRSetBool (machineNode, "currentStateModified", false);
4853	else
4854	CFGLDRDeleteAttribute (machineNode, "currentStateModified");
4855
4856	/* lastStateChange */
4857	CFGLDRSetDateTime (machineNode, "lastStateChange",
4858	mData->mLastStateChange);
4859
4860	/* Hardware node (required) */
4861	{
4862	CFGNODE hwNode = 0;
4863	CFGLDRGetChildNode (machineNode, "Hardware", 0, &hwNode);
4864	/* first, delete the entire node if exists */
4865	if (hwNode)
4866	CFGLDRDeleteNode (hwNode);
4867	/* then recreate it */
4868	hwNode = 0;
4869	CFGLDRCreateChildNode (machineNode, "Hardware", &hwNode);
4870	ComAssertBreak (hwNode, rc = E_FAIL);
4871
4872	rc = saveHardware (hwNode);
4873
4874	CFGLDRReleaseNode (hwNode);
4875	if (FAILED (rc))
4876	break;
4877	}
4878
4879	/* HardDiskAttachments node (required) */
4880	{
4881	CFGNODE hdasNode = 0;
4882	CFGLDRGetChildNode (machineNode, "HardDiskAttachments", 0, &hdasNode);
4883	/* first, delete the entire node if exists */
4884	if (hdasNode)
4885	CFGLDRDeleteNode (hdasNode);
4886	/* then recreate it */
4887	hdasNode = 0;
4888	CFGLDRCreateChildNode (machineNode, "HardDiskAttachments", &hdasNode);
4889	ComAssertBreak (hdasNode, rc = E_FAIL);
4890
4891	rc = saveHardDisks (hdasNode);
4892
4893	CFGLDRReleaseNode (hdasNode);
4894	if (FAILED (rc))
4895	break;
4896	}
4897
4898	/* update all snapshots if requested */
4899	if (updateAllSnapshots)
4900	rc = saveSnapshotSettingsWorker (machineNode, NULL,
4901	SaveSS_UpdateAllOp);
4902	}
4903	while (0);
4904
4905	if (machineNode)
4906	CFGLDRReleaseNode (machineNode);
4907
4908	if (SUCCEEDED (rc))
4909	rc = closeConfigLoader (configLoader, true /* aSaveBeforeClose */);
4910	else
4911	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
4912
4913	if (FAILED (rc))
4914	{
4915	/*
4916	* backup arbitrary data item to cause #isModified() to still return
4917	* true in case of any error
4918	*/
4919	mHWData.backup();
4920	}
4921
4922	if (wasModified \|\| aInformCallbacksAnyway)
4923	{
4924	/*
4925	* Fire the data change event, even on failure (since we've already
4926	* committed all data). This is done only for SessionMachines because
4927	* mutable Machine instances are always not registered (i.e. private
4928	* to the client process that creates them) and thus don't need to
4929	* inform callbacks.
4930	*/
4931	if (mType == IsSessionMachine)
4932	mParent->onMachineDataChange (mData->mUuid);
4933	}
4934
4935	LogFlowThisFunc (("rc=%08X\n", rc));
4936	LogFlowThisFuncLeave();
4937	return rc;
4938	}
4939
4940	/**
4941	* Wrapper for #saveSnapshotSettingsWorker() that opens the settings file
4942	* and locates the <Machine> node in there. See #saveSnapshotSettingsWorker()
4943	* for more details.
4944	*
4945	* @param aSnapshot Snapshot to operate on
4946	* @param aOpFlags Operation to perform, one of SaveSS_NoOp, SaveSS_AddOp
4947	* or SaveSS_UpdateAttrsOp possibly combined with
4948	* SaveSS_UpdateCurrentId.
4949	*
4950	* @note Locks this object for writing + other child objects.
4951	*/
4952	HRESULT Machine::saveSnapshotSettings (Snapshot *aSnapshot, int aOpFlags)
4953	{
4954	AutoCaller autoCaller (this);
4955	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
4956
4957	AssertReturn (mType == IsMachine \|\| mType == IsSessionMachine, E_FAIL);
4958
4959	AutoLock alock (this);
4960
4961	AssertReturn (isConfigLocked(), E_FAIL);
4962
4963	HRESULT rc = S_OK;
4964
4965	/* load the config file */
4966	CFGHANDLE configLoader = 0;
4967	rc = openConfigLoader (&configLoader);
4968	if (FAILED (rc))
4969	return rc;
4970
4971	CFGNODE machineNode = 0;
4972	CFGLDRGetNode (configLoader, "VirtualBox/Machine", 0, &machineNode);
4973
4974	do
4975	{
4976	ComAssertBreak (machineNode, rc = E_FAIL);
4977
4978	rc = saveSnapshotSettingsWorker (machineNode, aSnapshot, aOpFlags);
4979
4980	CFGLDRReleaseNode (machineNode);
4981	}
4982	while (0);
4983
4984	if (SUCCEEDED (rc))
4985	rc = closeConfigLoader (configLoader, true /* aSaveBeforeClose */);
4986	else
4987	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
4988
4989	return rc;
4990	}
4991
4992	/**
4993	* Performs the specified operation on the given snapshot
4994	* in the settings file represented by \a aMachineNode.
4995	*
4996	* If \a aOpFlags = SaveSS_UpdateAllOp, \a aSnapshot can be NULL to indicate
4997	* that the whole tree of the snapshots should be updated in <Machine>.
4998	* One particular case is when the last (and the only) snapshot should be
4999	* removed (it is so when both mCurrentSnapshot and mFirstSnapshot are NULL).
5000	*
5001	* \a aOp may be just SaveSS_UpdateCurrentId if only the currentSnapshot
5002	* attribute of <Machine> needs to be updated.
5003	*
5004	* @param aMachineNode <Machine> node in the opened settings file
5005	* @param aSnapshot Snapshot to operate on
5006	* @param aOpFlags Operation to perform, one of SaveSS_NoOp, SaveSS_AddOp
5007	* or SaveSS_UpdateAttrsOp possibly combined with
5008	* SaveSS_UpdateCurrentId.
5009	*
5010	* @note Must be called with this object locked for writing.
5011	* Locks child objects.
5012	*/
5013	HRESULT Machine::saveSnapshotSettingsWorker (CFGNODE aMachineNode,
5014	Snapshot *aSnapshot, int aOpFlags)
5015	{
5016	AssertReturn (aMachineNode, E_FAIL);
5017
5018	AssertReturn (isLockedOnCurrentThread(), E_FAIL);
5019
5020	int op = aOpFlags & SaveSS_OpMask;
5021	AssertReturn (
5022	(aSnapshot && (op == SaveSS_AddOp \|\| op == SaveSS_UpdateAttrsOp \|\|
5023	op == SaveSS_UpdateAllOp)) \|\|
5024	(!aSnapshot && ((op == SaveSS_NoOp && (aOpFlags & SaveSS_UpdateCurrentId)) \|\|
5025	op == SaveSS_UpdateAllOp)),
5026	E_FAIL);
5027
5028	HRESULT rc = S_OK;
5029
5030	bool recreateWholeTree = false;
5031
5032	do
5033	{
5034	if (op == SaveSS_NoOp)
5035	break;
5036
5037	/* quick path: recreate the whole tree of the snapshots */
5038	if (op == SaveSS_UpdateAllOp && !aSnapshot)
5039	{
5040	/* first, delete the entire root snapshot node if it exists */
5041	CFGNODE snapshotNode = 0;
5042	CFGLDRGetChildNode (aMachineNode, "Snapshot", 0, &snapshotNode);
5043	if (snapshotNode)
5044	CFGLDRDeleteNode (snapshotNode);
5045
5046	/*
5047	* second, if we have any snapshots left, substitute aSnapshot with
5048	* the first snapshot to recreate the whole tree, otherwise break
5049	*/
5050	if (mData->mFirstSnapshot)
5051	{
5052	aSnapshot = mData->mFirstSnapshot;
5053	recreateWholeTree = true;
5054	}
5055	else
5056	break;
5057	}
5058
5059	Assert (!!aSnapshot);
5060	ComObjPtr <Snapshot> parent = aSnapshot->parent();
5061
5062	if (op == SaveSS_AddOp)
5063	{
5064	CFGNODE parentNode = 0;
5065
5066	if (parent)
5067	{
5068	rc = findSnapshotNode (parent, aMachineNode, NULL, &parentNode);
5069	if (FAILED (rc))
5070	break;
5071	ComAssertBreak (parentNode, rc = E_FAIL);
5072	}
5073
5074	do
5075	{
5076	CFGNODE snapshotsNode = 0;
5077
5078	if (parentNode)
5079	{
5080	CFGLDRCreateChildNode (parentNode, "Snapshots", &snapshotsNode);
5081	ComAssertBreak (snapshotsNode, rc = E_FAIL);
5082	}
5083	else
5084	snapshotsNode = aMachineNode;
5085	do
5086	{
5087	CFGNODE snapshotNode = 0;
5088	CFGLDRAppendChildNode (snapshotsNode, "Snapshot", &snapshotNode);
5089	ComAssertBreak (snapshotNode, rc = E_FAIL);
5090	rc = saveSnapshot (snapshotNode, aSnapshot, false /* aAttrsOnly */);
5091	CFGLDRReleaseNode (snapshotNode);
5092
5093	if (FAILED (rc))
5094	break;
5095
5096	/*
5097	* when a new snapshot is added, this means diffs were created
5098	* for every normal/immutable hard disk of the VM, so we need to
5099	* save the current hard disk attachments
5100	*/
5101
5102	CFGNODE hdasNode = 0;
5103	CFGLDRGetChildNode (aMachineNode, "HardDiskAttachments", 0, &hdasNode);
5104	if (hdasNode)
5105	CFGLDRDeleteNode (hdasNode);
5106	CFGLDRCreateChildNode (aMachineNode, "HardDiskAttachments", &hdasNode);
5107	ComAssertBreak (hdasNode, rc = E_FAIL);
5108
5109	rc = saveHardDisks (hdasNode);
5110
5111	if (mHDData->mHDAttachments.size() != 0)
5112	{
5113	/*
5114	* If we have one or more attachments then we definitely
5115	* created diffs for them and associated new diffs with
5116	* current settngs. So, since we don't use saveSettings(),
5117	* we need to inform callbacks manually.
5118	*/
5119	if (mType == IsSessionMachine)
5120	mParent->onMachineDataChange (mData->mUuid);
5121	}
5122
5123	CFGLDRReleaseNode (hdasNode);
5124	}
5125	while (0);
5126
5127	if (snapshotsNode != aMachineNode)
5128	CFGLDRReleaseNode (snapshotsNode);
5129	}
5130	while (0);
5131
5132	if (parentNode)
5133	CFGLDRReleaseNode (parentNode);
5134
5135	break;
5136	}
5137
5138	Assert (op == SaveSS_UpdateAttrsOp && !recreateWholeTree \|\|
5139	op == SaveSS_UpdateAllOp);
5140
5141	CFGNODE snapshotsNode = 0;
5142	CFGNODE snapshotNode = 0;
5143
5144	if (!recreateWholeTree)
5145	{
5146	rc = findSnapshotNode (aSnapshot, aMachineNode,
5147	&snapshotsNode, &snapshotNode);
5148	if (FAILED (rc))
5149	break;
5150	ComAssertBreak (snapshotNode, rc = E_FAIL);
5151	}
5152
5153	if (!snapshotsNode)
5154	snapshotsNode = aMachineNode;
5155
5156	if (op == SaveSS_UpdateAttrsOp)
5157	rc = saveSnapshot (snapshotNode, aSnapshot, true /* aAttrsOnly */);
5158	else do
5159	{
5160	if (snapshotNode)
5161	{
5162	CFGLDRDeleteNode (snapshotNode);
5163	snapshotNode = 0;
5164	}
5165	CFGLDRAppendChildNode (snapshotsNode, "Snapshot", &snapshotNode);
5166	ComAssertBreak (snapshotNode, rc = E_FAIL);
5167	rc = saveSnapshot (snapshotNode, aSnapshot, false /* aAttrsOnly */);
5168	}
5169	while (0);
5170
5171	CFGLDRReleaseNode (snapshotNode);
5172	if (snapshotsNode != aMachineNode)
5173	CFGLDRReleaseNode (snapshotsNode);
5174	}
5175	while (0);
5176
5177	if (SUCCEEDED (rc))
5178	{
5179	/* update currentSnapshot when appropriate */
5180	if (aOpFlags & SaveSS_UpdateCurrentId)
5181	{
5182	if (!mData->mCurrentSnapshot.isNull())
5183	CFGLDRSetUUID (aMachineNode, "currentSnapshot",
5184	mData->mCurrentSnapshot->data().mId);
5185	else
5186	CFGLDRDeleteAttribute (aMachineNode, "currentSnapshot");
5187	}
5188	if (aOpFlags & SaveSS_UpdateCurStateModified)
5189	{
5190	if (!mData->mCurrentStateModified)
5191	CFGLDRSetBool (aMachineNode, "currentStateModified", false);
5192	else
5193	CFGLDRDeleteAttribute (aMachineNode, "currentStateModified");
5194	}
5195	}
5196
5197	return rc;
5198	}
5199
5200	/**
5201	* Saves the given snapshot and all its children (unless \a aAttrsOnly is true).
5202	* It is assumed that the given node is empty (unless \a aAttrsOnly is true).
5203	*
5204	* @param aNode <Snapshot> node to save the snapshot to
5205	* @param aSnapshot snapshot to save
5206	* @param aAttrsOnly if true, only updatge user-changeable attrs
5207	*/
5208	HRESULT Machine::saveSnapshot (CFGNODE aNode, Snapshot *aSnapshot, bool aAttrsOnly)
5209	{
5210	AssertReturn (aNode && aSnapshot, E_INVALIDARG);
5211	AssertReturn (mType == IsMachine \|\| mType == IsSessionMachine, E_FAIL);
5212
5213	/* uuid (required) */
5214	if (!aAttrsOnly)
5215	CFGLDRSetUUID (aNode, "uuid", aSnapshot->data().mId);
5216
5217	/* name (required) */
5218	CFGLDRSetBSTR (aNode, "name", aSnapshot->data().mName);
5219
5220	/* timeStamp (required) */
5221	CFGLDRSetDateTime (aNode, "timeStamp", aSnapshot->data().mTimeStamp);
5222
5223	/* Description node (optional) */
5224	if (!aSnapshot->data().mDescription.isNull())
5225	{
5226	CFGNODE descNode = 0;
5227	CFGLDRCreateChildNode (aNode, "Description", &descNode);
5228	Assert (descNode);
5229	CFGLDRSetBSTR (descNode, NULL, aSnapshot->data().mDescription);
5230	CFGLDRReleaseNode (descNode);
5231	}
5232	else
5233	{
5234	CFGNODE descNode = 0;
5235	CFGLDRGetChildNode (aNode, "Description", 0, &descNode);
5236	if (descNode)
5237	CFGLDRDeleteNode (descNode);
5238	}
5239
5240	if (aAttrsOnly)
5241	return S_OK;
5242
5243	/* stateFile (optional) */
5244	if (aSnapshot->stateFilePath())
5245	{
5246	/* try to make the file name relative to the settings file dir */
5247	Utf8Str stateFilePath = aSnapshot->stateFilePath();
5248	calculateRelativePath (stateFilePath, stateFilePath);
5249	CFGLDRSetString (aNode, "stateFile", stateFilePath);
5250	}
5251
5252	{
5253	ComObjPtr <SnapshotMachine> snapshotMachine = aSnapshot->data().mMachine;
5254	ComAssertRet (!snapshotMachine.isNull(), E_FAIL);
5255
5256	/* save hardware */
5257	{
5258	CFGNODE hwNode = 0;
5259	CFGLDRCreateChildNode (aNode, "Hardware", &hwNode);
5260
5261	HRESULT rc = snapshotMachine->saveHardware (hwNode);
5262
5263	CFGLDRReleaseNode (hwNode);
5264	if (FAILED (rc))
5265	return rc;
5266	}
5267
5268	/* save hard disks */
5269	{
5270	CFGNODE hdasNode = 0;
5271	CFGLDRCreateChildNode (aNode, "HardDiskAttachments", &hdasNode);
5272
5273	HRESULT rc = snapshotMachine->saveHardDisks (hdasNode);
5274
5275	CFGLDRReleaseNode (hdasNode);
5276	if (FAILED (rc))
5277	return rc;
5278	}
5279	}
5280
5281	/* save children */
5282	{
5283	AutoLock listLock (aSnapshot->childrenLock());
5284
5285	if (aSnapshot->children().size())
5286	{
5287	CFGNODE snapshotsNode = 0;
5288	CFGLDRCreateChildNode (aNode, "Snapshots", &snapshotsNode);
5289
5290	HRESULT rc = S_OK;
5291
5292	for (Snapshot::SnapshotList::const_iterator it = aSnapshot->children().begin();
5293	it != aSnapshot->children().end() && SUCCEEDED (rc);
5294	++ it)
5295	{
5296	CFGNODE snapshotNode = 0;
5297	CFGLDRCreateChildNode (snapshotsNode, "Snapshot", &snapshotNode);
5298
5299	rc = saveSnapshot (snapshotNode, (*it), aAttrsOnly);
5300
5301	CFGLDRReleaseNode (snapshotNode);
5302	}
5303
5304	CFGLDRReleaseNode (snapshotsNode);
5305	if (FAILED (rc))
5306	return rc;
5307	}
5308	}
5309
5310	return S_OK;
5311	}
5312
5313	/**
5314	* Creates Saves the VM hardware configuration.
5315	* It is assumed that the given node is empty.
5316	*
5317	* @param aNode <Hardware> node to save the VM hardware confguration to
5318	*/
5319	HRESULT Machine::saveHardware (CFGNODE aNode)
5320	{
5321	AssertReturn (aNode, E_INVALIDARG);
5322
5323	HRESULT rc = S_OK;
5324
5325	/* CPU */
5326	{
5327	CFGNODE cpuNode = 0;
5328	CFGLDRCreateChildNode (aNode, "CPU", &cpuNode);
5329	CFGNODE hwVirtExNode = 0;
5330	CFGLDRCreateChildNode (cpuNode, "HardwareVirtEx", &hwVirtExNode);
5331	char *value = NULL;
5332	switch (mHWData->mHWVirtExEnabled)
5333	{
5334	case TriStateBool_False:
5335	value = "false";
5336	break;
5337	case TriStateBool_True:
5338	value = "true";
5339	break;
5340	default:
5341	value = "default";
5342	}
5343	CFGLDRSetString (hwVirtExNode, "enabled", value);
5344	CFGLDRReleaseNode (hwVirtExNode);
5345	CFGLDRReleaseNode (cpuNode);
5346	}
5347
5348	/* memory (required) */
5349	{
5350	CFGNODE memoryNode = 0;
5351	CFGLDRCreateChildNode (aNode, "Memory", &memoryNode);
5352	CFGLDRSetUInt32 (memoryNode, "RAMSize", mHWData->mMemorySize);
5353	CFGLDRReleaseNode (memoryNode);
5354	}
5355
5356	/* boot (required) */
5357	do
5358	{
5359	CFGNODE bootNode = 0;
5360	CFGLDRCreateChildNode (aNode, "Boot", &bootNode);
5361
5362	for (ULONG pos = 0; pos < ELEMENTS (mHWData->mBootOrder); pos ++)
5363	{
5364	const char *device = NULL;
5365	switch (mHWData->mBootOrder [pos])
5366	{
5367	case DeviceType_NoDevice:
5368	/* skip, this is allowed for <Order> nodes
5369	* when loading, the default value NoDevice will remain */
5370	continue;
5371	case DeviceType_FloppyDevice: device = "Floppy"; break;
5372	case DeviceType_DVDDevice: device = "DVD"; break;
5373	case DeviceType_HardDiskDevice: device = "HardDisk"; break;
5374	case DeviceType_NetworkDevice: device = "Network"; break;
5375	default:
5376	ComAssertMsgFailedBreak (("Invalid boot device: %d\n",
5377	mHWData->mBootOrder [pos]),
5378	rc = E_FAIL);
5379	}
5380	if (FAILED (rc))
5381	break;
5382
5383	CFGNODE orderNode = 0;
5384	CFGLDRAppendChildNode (bootNode, "Order", &orderNode);
5385
5386	CFGLDRSetUInt32 (orderNode, "position", pos + 1);
5387	CFGLDRSetString (orderNode, "device", device);
5388
5389	CFGLDRReleaseNode (orderNode);
5390	}
5391
5392	CFGLDRReleaseNode (bootNode);
5393	}
5394	while (0);
5395
5396	if (FAILED (rc))
5397	return rc;
5398
5399	/* display (required) */
5400	{
5401	CFGNODE displayNode = 0;
5402	CFGLDRCreateChildNode (aNode, "Display", &displayNode);
5403	CFGLDRSetUInt32 (displayNode, "VRAMSize", mHWData->mVRAMSize);
5404	CFGLDRReleaseNode (displayNode);
5405	}
5406
5407	#ifdef VBOX_VRDP
5408	/* VRDP settings (optional) */
5409	/// @todo (dmik) move the code to VRDPServer
5410	/// @todo r=sunlover: moved. dmik, please review.
5411	{
5412	CFGNODE remoteDisplayNode = 0;
5413	CFGLDRCreateChildNode (aNode, "RemoteDisplay", &remoteDisplayNode);
5414
5415	if (remoteDisplayNode)
5416	{
5417	mVRDPServer->saveConfig (remoteDisplayNode);
5418	CFGLDRReleaseNode (remoteDisplayNode);
5419	}
5420	}
5421	#endif
5422
5423	/* BIOS (required) */
5424	{
5425	CFGNODE biosNode = 0;
5426	CFGLDRCreateChildNode (aNode, "BIOS", &biosNode);
5427	{
5428	BOOL fSet;
5429	/* ACPI */
5430	CFGNODE acpiNode = 0;
5431	CFGLDRCreateChildNode (biosNode, "ACPI", &acpiNode);
5432	mBIOSSettings->COMGETTER(ACPIEnabled)(&fSet);
5433	CFGLDRSetBool (acpiNode, "enabled", !!fSet);
5434	CFGLDRReleaseNode (acpiNode);
5435
5436	/* IOAPIC */
5437	CFGNODE ioapicNode = 0;
5438	CFGLDRCreateChildNode (biosNode, "IOAPIC", &ioapicNode);
5439	mBIOSSettings->COMGETTER(IOAPICEnabled)(&fSet);
5440	CFGLDRSetBool (ioapicNode, "enabled", !!fSet);
5441	CFGLDRReleaseNode (ioapicNode);
5442
5443	/* BIOS logo (optional) **/
5444	CFGNODE logoNode = 0;
5445	CFGLDRCreateChildNode (biosNode, "Logo", &logoNode);
5446	mBIOSSettings->COMGETTER(LogoFadeIn)(&fSet);
5447	CFGLDRSetBool (logoNode, "fadeIn", !!fSet);
5448	mBIOSSettings->COMGETTER(LogoFadeOut)(&fSet);
5449	CFGLDRSetBool (logoNode, "fadeOut", !!fSet);
5450	ULONG ulDisplayTime;
5451	mBIOSSettings->COMGETTER(LogoDisplayTime)(&ulDisplayTime);
5452	CFGLDRSetUInt32 (logoNode, "displayTime", ulDisplayTime);
5453	Bstr logoPath;
5454	mBIOSSettings->COMGETTER(LogoImagePath)(logoPath.asOutParam());
5455	if (logoPath)
5456	CFGLDRSetBSTR (logoNode, "imagePath", logoPath);
5457	else
5458	CFGLDRDeleteAttribute (logoNode, "imagePath");
5459	CFGLDRReleaseNode (logoNode);
5460
5461	/* boot menu (optional) */
5462	CFGNODE bootMenuNode = 0;
5463	CFGLDRCreateChildNode (biosNode, "BootMenu", &bootMenuNode);
5464	BIOSBootMenuMode_T bootMenuMode;
5465	Bstr bootMenuModeStr;
5466	mBIOSSettings->COMGETTER(BootMenuMode)(&bootMenuMode);
5467	switch (bootMenuMode)
5468	{
5469	case BIOSBootMenuMode_Disabled:
5470	bootMenuModeStr = "disabled";
5471	break;
5472	case BIOSBootMenuMode_MenuOnly:
5473	bootMenuModeStr = "menuonly";
5474	break;
5475	default:
5476	bootMenuModeStr = "messageandmenu";
5477	}
5478	CFGLDRSetBSTR (bootMenuNode, "mode", bootMenuModeStr);
5479	CFGLDRReleaseNode (bootMenuNode);
5480	}
5481	CFGLDRReleaseNode(biosNode);
5482	}
5483
5484	/* DVD drive (required) */
5485	/// @todo (dmik) move the code to DVDDrive
5486	do
5487	{
5488	CFGNODE dvdNode = 0;
5489	CFGLDRCreateChildNode (aNode, "DVDDrive", &dvdNode);
5490
5491	BOOL fPassthrough;
5492	mDVDDrive->COMGETTER(Passthrough)(&fPassthrough);
5493	CFGLDRSetBool(dvdNode, "passthrough", !!fPassthrough);
5494
5495	switch (mDVDDrive->data()->mDriveState)
5496	{
5497	case DriveState_ImageMounted:
5498	{
5499	Assert (!mDVDDrive->data()->mDVDImage.isNull());
5500
5501	Guid id;
5502	rc = mDVDDrive->data()->mDVDImage->COMGETTER(Id) (id.asOutParam());
5503	Assert (!id.isEmpty());
5504
5505	CFGNODE imageNode = 0;
5506	CFGLDRCreateChildNode (dvdNode, "Image", &imageNode);
5507	CFGLDRSetUUID (imageNode, "uuid", id.ptr());
5508	CFGLDRReleaseNode (imageNode);
5509	break;
5510	}
5511	case DriveState_HostDriveCaptured:
5512	{
5513	Assert (!mDVDDrive->data()->mHostDrive.isNull());
5514
5515	Bstr name;
5516	rc = mDVDDrive->data()->mHostDrive->COMGETTER(Name) (name.asOutParam());
5517	Assert (!name.isEmpty());
5518
5519	CFGNODE hostDriveNode = 0;
5520	CFGLDRCreateChildNode (dvdNode, "HostDrive", &hostDriveNode);
5521	CFGLDRSetBSTR (hostDriveNode, "src", name);
5522	CFGLDRReleaseNode (hostDriveNode);
5523	break;
5524	}
5525	case DriveState_NotMounted:
5526	/* do nothing, i.e.leave the DVD drive node empty */
5527	break;
5528	default:
5529	ComAssertMsgFailedBreak (("Invalid DVD drive state: %d\n",
5530	mDVDDrive->data()->mDriveState),
5531	rc = E_FAIL);
5532	}
5533
5534	CFGLDRReleaseNode (dvdNode);
5535	}
5536	while (0);
5537
5538	if (FAILED (rc))
5539	return rc;
5540
5541	/* Flooppy drive (required) */
5542	/// @todo (dmik) move the code to DVDDrive
5543	do
5544	{
5545	CFGNODE floppyNode = 0;
5546	CFGLDRCreateChildNode (aNode, "FloppyDrive", &floppyNode);
5547
5548	BOOL fFloppyEnabled;
5549	rc = mFloppyDrive->COMGETTER(Enabled)(&fFloppyEnabled);
5550	CFGLDRSetBool (floppyNode, "enabled", !!fFloppyEnabled);
5551
5552	switch (mFloppyDrive->data()->mDriveState)
5553	{
5554	case DriveState_ImageMounted:
5555	{
5556	Assert (!mFloppyDrive->data()->mFloppyImage.isNull());
5557
5558	Guid id;
5559	rc = mFloppyDrive->data()->mFloppyImage->COMGETTER(Id) (id.asOutParam());
5560	Assert (!id.isEmpty());
5561
5562	CFGNODE imageNode = 0;
5563	CFGLDRCreateChildNode (floppyNode, "Image", &imageNode);
5564	CFGLDRSetUUID (imageNode, "uuid", id.ptr());
5565	CFGLDRReleaseNode (imageNode);
5566	break;
5567	}
5568	case DriveState_HostDriveCaptured:
5569	{
5570	Assert (!mFloppyDrive->data()->mHostDrive.isNull());
5571
5572	Bstr name;
5573	rc = mFloppyDrive->data()->mHostDrive->COMGETTER(Name) (name.asOutParam());
5574	Assert (!name.isEmpty());
5575
5576	CFGNODE hostDriveNode = 0;
5577	CFGLDRCreateChildNode (floppyNode, "HostDrive", &hostDriveNode);
5578	CFGLDRSetBSTR (hostDriveNode, "src", name);
5579	CFGLDRReleaseNode (hostDriveNode);
5580	break;
5581	}
5582	case DriveState_NotMounted:
5583	/* do nothing, i.e.leave the Floppy drive node empty */
5584	break;
5585	default:
5586	ComAssertMsgFailedBreak (("Invalid Floppy drive state: %d\n",
5587	mFloppyDrive->data()->mDriveState),
5588	rc = E_FAIL);
5589	}
5590
5591	CFGLDRReleaseNode (floppyNode);
5592	}
5593	while (0);
5594
5595	if (FAILED (rc))
5596	return rc;
5597
5598
5599	/* USB Controller (required) */
5600	rc = mUSBController->saveSettings (aNode);
5601	if (FAILED (rc))
5602	return rc;
5603
5604	/* Network adapters (required) */
5605	do
5606	{
5607	CFGNODE nwNode = 0;
5608	CFGLDRCreateChildNode (aNode, "Network", &nwNode);
5609
5610	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
5611	{
5612	CFGNODE networkAdapterNode = 0;
5613	CFGLDRAppendChildNode (nwNode, "Adapter", &networkAdapterNode);
5614
5615	CFGLDRSetUInt32 (networkAdapterNode, "slot", slot);
5616	CFGLDRSetBool (networkAdapterNode, "enabled",
5617	!!mNetworkAdapters [slot]->data()->mEnabled);
5618	CFGLDRSetBSTR (networkAdapterNode, "MACAddress",
5619	mNetworkAdapters [slot]->data()->mMACAddress);
5620	CFGLDRSetBool (networkAdapterNode, "cable",
5621	!!mNetworkAdapters [slot]->data()->mCableConnected);
5622
5623	if (mNetworkAdapters [slot]->data()->mTraceEnabled)
5624	CFGLDRSetBool (networkAdapterNode, "trace", true);
5625
5626	CFGLDRSetBSTR (networkAdapterNode, "tracefile",
5627	mNetworkAdapters [slot]->data()->mTraceFile);
5628
5629	switch (mNetworkAdapters [slot]->data()->mAdapterType)
5630	{
5631	case NetworkAdapterType_NetworkAdapterAm79C970A:
5632	CFGLDRSetString (networkAdapterNode, "type", "Am79C970A");
5633	break;
5634	case NetworkAdapterType_NetworkAdapterAm79C973:
5635	CFGLDRSetString (networkAdapterNode, "type", "Am79C973");
5636	break;
5637	default:
5638	ComAssertMsgFailedBreak (("Invalid network adapter type: %d\n",
5639	mNetworkAdapters [slot]->data()->mAdapterType),
5640	rc = E_FAIL);
5641	}
5642
5643	CFGNODE attachmentNode = 0;
5644	switch (mNetworkAdapters [slot]->data()->mAttachmentType)
5645	{
5646	case NetworkAttachmentType_NoNetworkAttachment:
5647	{
5648	/* do nothing -- empty content */
5649	break;
5650	}
5651	case NetworkAttachmentType_NATNetworkAttachment:
5652	{
5653	CFGLDRAppendChildNode (networkAdapterNode, "NAT", &attachmentNode);
5654	break;
5655	}
5656	case NetworkAttachmentType_HostInterfaceNetworkAttachment:
5657	{
5658	CFGLDRAppendChildNode (networkAdapterNode, "HostInterface", &attachmentNode);
5659	const Bstr &name = mNetworkAdapters [slot]->data()->mHostInterface;
5660	#ifdef __WIN__
5661	Assert (!name.isNull());
5662	#endif
5663	#ifdef VBOX_WITH_UNIXY_TAP_NETWORKING
5664	if (!name.isEmpty())
5665	#endif
5666	CFGLDRSetBSTR (attachmentNode, "name", name);
5667	#ifdef VBOX_WITH_UNIXY_TAP_NETWORKING
5668	const Bstr &tapSetupApp =
5669	mNetworkAdapters [slot]->data()->mTAPSetupApplication;
5670	if (!tapSetupApp.isEmpty())
5671	CFGLDRSetBSTR (attachmentNode, "TAPSetup", tapSetupApp);
5672	const Bstr &tapTerminateApp =
5673	mNetworkAdapters [slot]->data()->mTAPTerminateApplication;
5674	if (!tapTerminateApp.isEmpty())
5675	CFGLDRSetBSTR (attachmentNode, "TAPTerminate", tapTerminateApp);
5676	#endif /* VBOX_WITH_UNIXY_TAP_NETWORKING */
5677	break;
5678	}
5679	case NetworkAttachmentType_InternalNetworkAttachment:
5680	{
5681	CFGLDRAppendChildNode (networkAdapterNode, "InternalNetwork", &attachmentNode);
5682	const Bstr &name = mNetworkAdapters[slot]->data()->mInternalNetwork;
5683	Assert(!name.isNull());
5684	CFGLDRSetBSTR (attachmentNode, "name", name);
5685	break;
5686	}
5687	default:
5688	{
5689	ComAssertFailedBreak (rc = E_FAIL);
5690	break;
5691	}
5692	}
5693	if (attachmentNode)
5694	CFGLDRReleaseNode (attachmentNode);
5695
5696	CFGLDRReleaseNode (networkAdapterNode);
5697	}
5698
5699	CFGLDRReleaseNode (nwNode);
5700	}
5701	while (0);
5702
5703	if (FAILED (rc))
5704	return rc;
5705
5706	/* Audio adapter */
5707	do
5708	{
5709	CFGNODE adapterNode = 0;
5710	CFGLDRCreateChildNode (aNode, "AudioAdapter", &adapterNode);
5711
5712	switch (mAudioAdapter->data()->mAudioDriver)
5713	{
5714	case AudioDriverType_NullAudioDriver:
5715	{
5716	CFGLDRSetString (adapterNode, "driver", "null");
5717	break;
5718	}
5719	#ifdef __WIN__
5720	case AudioDriverType_WINMMAudioDriver:
5721	#ifdef VBOX_WITH_WINMM
5722	{
5723	CFGLDRSetString (adapterNode, "driver", "winmm");
5724	break;
5725	}
5726	#endif
5727	case AudioDriverType_DSOUNDAudioDriver:
5728	{
5729	CFGLDRSetString (adapterNode, "driver", "dsound");
5730	break;
5731	}
5732	#endif /* __WIN__ */
5733	#ifdef __LINUX__
5734	case AudioDriverType_ALSAAudioDriver:
5735	#ifdef VBOX_WITH_ALSA
5736	{
5737	CFGLDRSetString (adapterNode, "driver", "alsa");
5738	break;
5739	}
5740	#endif
5741	case AudioDriverType_OSSAudioDriver:
5742	{
5743	CFGLDRSetString (adapterNode, "driver", "oss");
5744	break;
5745	}
5746	#endif /* __LINUX__ */
5747	#ifdef __DARWIN__
5748	case AudioDriverType_CoreAudioDriver:
5749	{
5750	CFGLDRSetString (adapterNode, "driver", "coreaudio");
5751	break;
5752	}
5753	#endif
5754	default:
5755	ComAssertMsgFailedBreak (("Wrong audio driver type! driver = %d\n",
5756	mAudioAdapter->data()->mAudioDriver),
5757	rc = E_FAIL);
5758	}
5759
5760	CFGLDRSetBool (adapterNode, "enabled", !!mAudioAdapter->data()->mEnabled);
5761
5762	CFGLDRReleaseNode (adapterNode);
5763	}
5764	while (0);
5765
5766	if (FAILED (rc))
5767	return rc;
5768
5769	/* Shared folders */
5770	do
5771	{
5772	CFGNODE sharedFoldersNode = 0;
5773	CFGLDRCreateChildNode (aNode, "SharedFolders", &sharedFoldersNode);
5774
5775	for (HWData::SharedFolderList::const_iterator it = mHWData->mSharedFolders.begin();
5776	it != mHWData->mSharedFolders.end();
5777	++ it)
5778	{
5779	ComObjPtr <SharedFolder> folder = *it;
5780
5781	CFGNODE folderNode = 0;
5782	CFGLDRAppendChildNode (sharedFoldersNode, "SharedFolder", &folderNode);
5783
5784	/* all are mandatory */
5785	CFGLDRSetBSTR (folderNode, "name", folder->name());
5786	CFGLDRSetBSTR (folderNode, "hostPath", folder->hostPath());
5787
5788	CFGLDRReleaseNode (folderNode);
5789	}
5790
5791	CFGLDRReleaseNode (sharedFoldersNode);
5792	}
5793	while (0);
5794
5795	/* Clipboard */
5796	{
5797	CFGNODE clipNode = 0;
5798	CFGLDRCreateChildNode (aNode, "Clipboard", &clipNode);
5799
5800	char *mode = "Disabled";
5801	switch (mHWData->mClipboardMode)
5802	{
5803	case ClipboardMode_ClipDisabled:
5804	/* already assigned */
5805	break;
5806	case ClipboardMode_ClipHostToGuest:
5807	mode = "HostToGuest";
5808	break;
5809	case ClipboardMode_ClipGuestToHost:
5810	mode = "GuestToHost";
5811	break;
5812	case ClipboardMode_ClipBidirectional:
5813	mode = "Bidirectional";
5814	break;
5815	default:
5816	AssertMsgFailed (("Clipboard mode %d is invalid",
5817	mHWData->mClipboardMode));
5818	break;
5819	}
5820	CFGLDRSetString (clipNode, "mode", mode);
5821
5822	CFGLDRReleaseNode (clipNode);
5823	}
5824
5825	return rc;
5826	}
5827
5828	/**
5829	* Saves the hard disk confguration.
5830	* It is assumed that the given node is empty.
5831	*
5832	* @param aNode <HardDiskAttachments> node to save the hard disk confguration to
5833	*/
5834	HRESULT Machine::saveHardDisks (CFGNODE aNode)
5835	{
5836	AssertReturn (aNode, E_INVALIDARG);
5837
5838	HRESULT rc = S_OK;
5839
5840	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
5841	it != mHDData->mHDAttachments.end() && SUCCEEDED (rc);
5842	++ it)
5843	{
5844	ComObjPtr <HardDiskAttachment> att = *it;
5845
5846	CFGNODE hdNode = 0;
5847	CFGLDRAppendChildNode (aNode, "HardDiskAttachment", &hdNode);
5848
5849	do
5850	{
5851	const char *bus = NULL;
5852	switch (att->controller())
5853	{
5854	case DiskControllerType_IDE0Controller: bus = "ide0"; break;
5855	case DiskControllerType_IDE1Controller: bus = "ide1"; break;
5856	default:
5857	ComAssertFailedBreak (rc = E_FAIL);
5858	}
5859	if (FAILED (rc))
5860	break;
5861
5862	const char *dev = NULL;
5863	switch (att->deviceNumber())
5864	{
5865	case 0: dev = "master"; break;
5866	case 1: dev = "slave"; break;
5867	default:
5868	ComAssertFailedBreak (rc = E_FAIL);
5869	}
5870	if (FAILED (rc))
5871	break;
5872
5873	CFGLDRSetUUID (hdNode, "hardDisk", att->hardDisk()->id());
5874	CFGLDRSetString (hdNode, "bus", bus);
5875	CFGLDRSetString (hdNode, "device", dev);
5876	}
5877	while (0);
5878
5879	CFGLDRReleaseNode (hdNode);
5880	}
5881
5882	return rc;
5883	}
5884
5885	/**
5886	* Saves machine state settings as defined by aFlags
5887	* (SaveSTS_* values).
5888	*
5889	* @param aFlags a combination of SaveSTS_* flags
5890	*
5891	* @note Locks objects!
5892	*/
5893	HRESULT Machine::saveStateSettings (int aFlags)
5894	{
5895	if (aFlags == 0)
5896	return S_OK;
5897
5898	AutoCaller autoCaller (this);
5899	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
5900
5901	AutoLock alock (this);
5902
5903	/* load the config file */
5904	CFGHANDLE configLoader = 0;
5905	HRESULT rc = openConfigLoader (&configLoader);
5906	if (FAILED (rc))
5907	return rc;
5908
5909	CFGNODE machineNode = 0;
5910	CFGLDRGetNode (configLoader, "VirtualBox/Machine", 0, &machineNode);
5911
5912	do
5913	{
5914	ComAssertBreak (machineNode, rc = E_FAIL);
5915
5916	if (aFlags & SaveSTS_CurStateModified)
5917	{
5918	if (!mData->mCurrentStateModified)
5919	CFGLDRSetBool (machineNode, "currentStateModified", false);
5920	else
5921	CFGLDRDeleteAttribute (machineNode, "currentStateModified");
5922	}
5923
5924	if (aFlags & SaveSTS_StateFilePath)
5925	{
5926	if (mSSData->mStateFilePath)
5927	CFGLDRSetBSTR (machineNode, "stateFile", mSSData->mStateFilePath);
5928	else
5929	CFGLDRDeleteAttribute (machineNode, "stateFile");
5930	}
5931
5932	if (aFlags & SaveSTS_StateTimeStamp)
5933	{
5934	Assert (mData->mMachineState != MachineState_Aborted \|\|
5935	mSSData->mStateFilePath.isNull());
5936
5937	CFGLDRSetDateTime (machineNode, "lastStateChange",
5938	mData->mLastStateChange);
5939
5940	// set the aborted attribute when appropriate
5941	if (mData->mMachineState == MachineState_Aborted)
5942	CFGLDRSetBool (machineNode, "aborted", true);
5943	else
5944	CFGLDRDeleteAttribute (machineNode, "aborted");
5945	}
5946	}
5947	while (0);
5948
5949	if (machineNode)
5950	CFGLDRReleaseNode (machineNode);
5951
5952	if (SUCCEEDED (rc))
5953	rc = closeConfigLoader (configLoader, true /* aSaveBeforeClose */);
5954	else
5955	closeConfigLoader (configLoader, false /* aSaveBeforeClose */);
5956
5957	return rc;
5958	}
5959
5960	/**
5961	* Cleans up all differencing hard disks based on immutable hard disks.
5962	*
5963	* @note Locks objects!
5964	*/
5965	HRESULT Machine::wipeOutImmutableDiffs()
5966	{
5967	AutoCaller autoCaller (this);
5968	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
5969
5970	AutoReaderLock alock (this);
5971
5972	AssertReturn (mData->mMachineState == MachineState_PoweredOff \|\|
5973	mData->mMachineState == MachineState_Aborted, E_FAIL);
5974
5975	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
5976	it != mHDData->mHDAttachments.end();
5977	++ it)
5978	{
5979	ComObjPtr <HardDisk> hd = (*it)->hardDisk();
5980	AutoLock hdLock (hd);
5981
5982	if(hd->isParentImmutable())
5983	{
5984	/// @todo (dmik) no error handling for now
5985	// (need async error reporting for this)
5986	hd->asVDI()->wipeOutImage();
5987	}
5988	}
5989
5990	return S_OK;
5991	}
5992
5993	/**
5994	* Fixes up lazy hard disk attachments by creating or deleting differencing
5995	* hard disks when machine settings are being committed.
5996	* Must be called only from #commit().
5997	*
5998	* @note Locks objects!
5999	*/
6000	HRESULT Machine::fixupHardDisks (bool aCommit)
6001	{
6002	AutoCaller autoCaller (this);
6003	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6004
6005	AutoLock alock (this);
6006
6007	/* no attac/detach operations -- nothing to do */
6008	if (!mHDData.isBackedUp())
6009	{
6010	mHDData->mHDAttachmentsChanged = false;
6011	return S_OK;
6012	}
6013
6014	AssertReturn (mData->mRegistered, E_FAIL);
6015
6016	if (aCommit)
6017	{
6018	/*
6019	* changes are being committed,
6020	* perform actual diff image creation, deletion etc.
6021	*/
6022
6023	/* take a copy of backed up attachments (will modify it) */
6024	HDData::HDAttachmentList backedUp = mHDData.backedUpData()->mHDAttachments;
6025	/* list of new diffs created */
6026	std::list <ComObjPtr <HardDisk> > newDiffs;
6027
6028	HRESULT rc = S_OK;
6029
6030	/* go through current attachments */
6031	for (HDData::HDAttachmentList::const_iterator
6032	it = mHDData->mHDAttachments.begin();
6033	it != mHDData->mHDAttachments.end();
6034	++ it)
6035	{
6036	ComObjPtr <HardDiskAttachment> hda = *it;
6037	ComObjPtr <HardDisk> hd = hda->hardDisk();
6038	AutoLock hdLock (hd);
6039
6040	if (!hda->isDirty())
6041	{
6042	/*
6043	* not dirty, therefore was either attached before backing up
6044	* or doesn't need any fixup (already fixed up); try to locate
6045	* this hard disk among backed up attachments and remove from
6046	* there to prevent it from being deassociated/deleted
6047	*/
6048	HDData::HDAttachmentList::iterator oldIt;
6049	for (oldIt = backedUp.begin(); oldIt != backedUp.end(); ++ oldIt)
6050	if ((*oldIt)->hardDisk().equalsTo (hd))
6051	break;
6052	if (oldIt != backedUp.end())
6053	{
6054	/* remove from there */
6055	backedUp.erase (oldIt);
6056	Log3 (("FC: %ls found in old\n", hd->toString().raw()));
6057	}
6058	}
6059	else
6060	{
6061	/* dirty, determine what to do */
6062
6063	bool needDiff = false;
6064	bool searchAmongSnapshots = false;
6065
6066	switch (hd->type())
6067	{
6068	case HardDiskType_ImmutableHardDisk:
6069	{
6070	/* decrease readers increased in AttachHardDisk() */
6071	hd->releaseReader();
6072	Log3 (("FC: %ls released\n", hd->toString().raw()));
6073	/* indicate we need a diff (indirect attachment) */
6074	needDiff = true;
6075	break;
6076	}
6077	case HardDiskType_WritethroughHardDisk:
6078	{
6079	/* reset the dirty flag */
6080	hda->updateHardDisk (hd, false /* aDirty */);
6081	Log3 (("FC: %ls updated\n", hd->toString().raw()));
6082	break;
6083	}
6084	case HardDiskType_NormalHardDisk:
6085	{
6086	if (hd->snapshotId().isEmpty())
6087	{
6088	/* reset the dirty flag */
6089	hda->updateHardDisk (hd, false /* aDirty */);
6090	Log3 (("FC: %ls updated\n", hd->toString().raw()));
6091	}
6092	else
6093	{
6094	/* decrease readers increased in AttachHardDisk() */
6095	hd->releaseReader();
6096	Log3 (("FC: %ls released\n", hd->toString().raw()));
6097	/* indicate we need a diff (indirect attachment) */
6098	needDiff = true;
6099	/* search for the most recent base among snapshots */
6100	searchAmongSnapshots = true;
6101	}
6102	break;
6103	}
6104	}
6105
6106	if (!needDiff)
6107	continue;
6108
6109	bool createDiff = false;
6110
6111	/*
6112	* see whether any previously attached hard disk has the
6113	* the currently attached one (Normal or Independent) as
6114	* the root
6115	*/
6116
6117	HDData::HDAttachmentList::iterator foundIt = backedUp.end();
6118
6119	for (HDData::HDAttachmentList::iterator it = backedUp.begin();
6120	it != backedUp.end();
6121	++ it)
6122	{
6123	if ((*it)->hardDisk()->root().equalsTo (hd))
6124	{
6125	/*
6126	* matched dev and ctl (i.e. attached to the same place)
6127	* will win and immediately stop the search; otherwise
6128	* the first attachment that matched the hd only will
6129	* be used
6130	*/
6131	if ((*it)->deviceNumber() == hda->deviceNumber() &&
6132	(*it)->controller() == hda->controller())
6133	{
6134	foundIt = it;
6135	break;
6136	}
6137	else
6138	if (foundIt == backedUp.end())
6139	{
6140	/*
6141	* not an exact match; ensure there is no exact match
6142	* among other current attachments referring the same
6143	* root (to prevent this attachmend from reusing the
6144	* hard disk of the other attachment that will later
6145	* give the exact match or already gave it before)
6146	*/
6147	bool canReuse = true;
6148	for (HDData::HDAttachmentList::const_iterator
6149	it2 = mHDData->mHDAttachments.begin();
6150	it2 != mHDData->mHDAttachments.end();
6151	++ it2)
6152	{
6153	if ((it2)->deviceNumber() == (it)->deviceNumber() &&
6154	(it2)->controller() == (it)->controller() &&
6155	(*it2)->hardDisk()->root().equalsTo (hd))
6156	{
6157	/*
6158	* the exact match, either non-dirty or dirty
6159	* one refers the same root: in both cases
6160	* we cannot reuse the hard disk, so break
6161	*/
6162	canReuse = false;
6163	break;
6164	}
6165	}
6166
6167	if (canReuse)
6168	foundIt = it;
6169	}
6170	}
6171	}
6172
6173	if (foundIt != backedUp.end())
6174	{
6175	/* found either one or another, reuse the diff */
6176	hda->updateHardDisk ((*foundIt)->hardDisk(),
6177	false /* aDirty */);
6178	Log3 (("FC: %ls reused as %ls\n", hd->toString().raw(),
6179	(*foundIt)->hardDisk()->toString().raw()));
6180	/* remove from there */
6181	backedUp.erase (foundIt);
6182	}
6183	else
6184	{
6185	/* was not attached, need a diff */
6186	createDiff = true;
6187	}
6188
6189	if (!createDiff)
6190	continue;
6191
6192	ComObjPtr <HardDisk> baseHd = hd;
6193
6194	if (searchAmongSnapshots)
6195	{
6196	/*
6197	* find the most recent diff based on the currently
6198	* attached root (Normal hard disk) among snapshots
6199	*/
6200
6201	ComObjPtr <Snapshot> snap = mData->mCurrentSnapshot;
6202
6203	while (snap)
6204	{
6205	AutoLock snapLock (snap);
6206
6207	const HDData::HDAttachmentList &snapAtts =
6208	snap->data().mMachine->hdData()->mHDAttachments;
6209
6210	HDData::HDAttachmentList::const_iterator foundIt = snapAtts.end();
6211
6212	for (HDData::HDAttachmentList::const_iterator
6213	it = snapAtts.begin(); it != snapAtts.end(); ++ it)
6214	{
6215	if ((*it)->hardDisk()->root().equalsTo (hd))
6216	{
6217	/*
6218	* matched dev and ctl (i.e. attached to the same place)
6219	* will win and immediately stop the search; otherwise
6220	* the first attachment that matched the hd only will
6221	* be used
6222	*/
6223	if ((*it)->deviceNumber() == hda->deviceNumber() &&
6224	(*it)->controller() == hda->controller())
6225	{
6226	foundIt = it;
6227	break;
6228	}
6229	else
6230	if (foundIt == snapAtts.end())
6231	foundIt = it;
6232	}
6233	}
6234
6235	if (foundIt != snapAtts.end())
6236	{
6237	/* the most recent diff has been found, use as a base */
6238	baseHd = (*foundIt)->hardDisk();
6239	Log3 (("FC: %ls: recent found %ls\n",
6240	hd->toString().raw(), baseHd->toString().raw()));
6241	break;
6242	}
6243
6244	snap = snap->parent();
6245	}
6246	}
6247
6248	/* create a new diff for the hard disk being indirectly attached */
6249
6250	AutoLock baseHdLock (baseHd);
6251	baseHd->addReader();
6252
6253	ComObjPtr <HVirtualDiskImage> vdi;
6254	rc = baseHd->createDiffHardDisk (mUserData->mSnapshotFolderFull,
6255	mData->mUuid, vdi, NULL);
6256	baseHd->releaseReader();
6257	CheckComRCBreakRC (rc);
6258
6259	newDiffs.push_back (ComObjPtr <HardDisk> (vdi));
6260
6261	/* update the attachment and reset the dirty flag */
6262	hda->updateHardDisk (ComObjPtr <HardDisk> (vdi),
6263	false /* aDirty */);
6264	Log3 (("FC: %ls: diff created %ls\n",
6265	baseHd->toString().raw(), vdi->toString().raw()));
6266	}
6267	}
6268
6269	if (FAILED (rc))
6270	{
6271	/* delete diffs we created */
6272	for (std::list <ComObjPtr <HardDisk> >::const_iterator
6273	it = newDiffs.begin(); it != newDiffs.end(); ++ it)
6274	{
6275	/*
6276	* unregisterDiffHardDisk() is supposed to delete and uninit
6277	* the differencing hard disk
6278	*/
6279	mParent->unregisterDiffHardDisk (*it);
6280	/* too bad if we fail here, but nothing to do, just continue */
6281	}
6282
6283	/* the best is to rollback the changes... */
6284	mHDData.rollback();
6285	mHDData->mHDAttachmentsChanged = false;
6286	Log3 (("FC: ROLLED BACK\n"));
6287	return rc;
6288	}
6289
6290	/*
6291	* go through the rest of old attachments and delete diffs
6292	* or deassociate hard disks from machines (they will become detached)
6293	*/
6294	for (HDData::HDAttachmentList::iterator
6295	it = backedUp.begin(); it != backedUp.end(); ++ it)
6296	{
6297	ComObjPtr <HardDiskAttachment> hda = *it;
6298	ComObjPtr <HardDisk> hd = hda->hardDisk();
6299	AutoLock hdLock (hd);
6300
6301	if (hd->isDifferencing())
6302	{
6303	/*
6304	* unregisterDiffHardDisk() is supposed to delete and uninit
6305	* the differencing hard disk
6306	*/
6307	Log3 (("FC: %ls diff deleted\n", hd->toString().raw()));
6308	rc = mParent->unregisterDiffHardDisk (hd);
6309	/*
6310	* too bad if we fail here, but nothing to do, just continue
6311	* (the last rc will be returned to the caller though)
6312	*/
6313	}
6314	else
6315	{
6316	/* deassociate from this machine */
6317	Log3 (("FC: %ls deassociated\n", hd->toString().raw()));
6318	hd->setMachineId (Guid());
6319	}
6320	}
6321
6322	/* commit all the changes */
6323	mHDData->mHDAttachmentsChanged = mHDData.hasActualChanges();
6324	mHDData.commit();
6325	Log3 (("FC: COMMITTED\n"));
6326
6327	return rc;
6328	}
6329
6330	/*
6331	* changes are being rolled back,
6332	* go trhough all current attachments and fix up dirty ones
6333	* the way it is done in DetachHardDisk()
6334	*/
6335
6336	for (HDData::HDAttachmentList::iterator it = mHDData->mHDAttachments.begin();
6337	it != mHDData->mHDAttachments.end();
6338	++ it)
6339	{
6340	ComObjPtr <HardDiskAttachment> hda = *it;
6341	ComObjPtr <HardDisk> hd = hda->hardDisk();
6342	AutoLock hdLock (hd);
6343
6344	if (hda->isDirty())
6345	{
6346	switch (hd->type())
6347	{
6348	case HardDiskType_ImmutableHardDisk:
6349	{
6350	/* decrease readers increased in AttachHardDisk() */
6351	hd->releaseReader();
6352	Log3 (("FR: %ls released\n", hd->toString().raw()));
6353	break;
6354	}
6355	case HardDiskType_WritethroughHardDisk:
6356	{
6357	/* deassociate from this machine */
6358	hd->setMachineId (Guid());
6359	Log3 (("FR: %ls deassociated\n", hd->toString().raw()));
6360	break;
6361	}
6362	case HardDiskType_NormalHardDisk:
6363	{
6364	if (hd->snapshotId().isEmpty())
6365	{
6366	/* deassociate from this machine */
6367	hd->setMachineId (Guid());
6368	Log3 (("FR: %ls deassociated\n", hd->toString().raw()));
6369	}
6370	else
6371	{
6372	/* decrease readers increased in AttachHardDisk() */
6373	hd->releaseReader();
6374	Log3 (("FR: %ls released\n", hd->toString().raw()));
6375	}
6376
6377	break;
6378	}
6379	}
6380	}
6381	}
6382
6383	/* rollback all the changes */
6384	mHDData.rollback();
6385	Log3 (("FR: ROLLED BACK\n"));
6386
6387	return S_OK;
6388	}
6389
6390	/**
6391	* Creates differencing hard disks for all normal hard disks
6392	* and replaces attachments to refer to created disks.
6393	* Used when taking a snapshot or when discarding the current state.
6394	*
6395	* @param aSnapshotId ID of the snapshot being taken
6396	* or NULL if the current state is being discarded
6397	* @param aFolder folder where to create diff. hard disks
6398	* @param aProgress progress object to run (must contain at least as
6399	* many operations left as the number of VDIs attached)
6400	* @param aOnline whether the machine is online (i.e., when the EMT
6401	* thread is paused, OR when current hard disks are
6402	* marked as busy for some other reason)
6403	*
6404	* @note
6405	* The progress object is not marked as completed, neither on success
6406	* nor on failure. This is a responsibility of the caller.
6407	*
6408	* @note Locks mParent + this object for writing
6409	*/
6410	HRESULT Machine::createSnapshotDiffs (const Guid *aSnapshotId,
6411	const Bstr &aFolder,
6412	const ComObjPtr <Progress> &aProgress,
6413	bool aOnline)
6414	{
6415	AssertReturn (!aFolder.isEmpty(), E_FAIL);
6416
6417	AutoCaller autoCaller (this);
6418	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6419
6420	/* accessing mParent methods below needs mParent lock */
6421	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
6422
6423	HRESULT rc = S_OK;
6424
6425	// first pass: check accessibility before performing changes
6426	if (!aOnline)
6427	{
6428	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
6429	it != mHDData->mHDAttachments.end();
6430	++ it)
6431	{
6432	ComObjPtr <HardDiskAttachment> hda = *it;
6433	ComObjPtr <HardDisk> hd = hda->hardDisk();
6434	AutoLock hdLock (hd);
6435
6436	ComAssertMsgBreak (hd->type() == HardDiskType_NormalHardDisk,
6437	("Invalid hard disk type %d\n", hd->type()),
6438	rc = E_FAIL);
6439
6440	ComAssertMsgBreak (!hd->isParentImmutable() \|\|
6441	hd->storageType() == HardDiskStorageType_VirtualDiskImage,
6442	("Invalid hard disk storage type %d\n", hd->storageType()),
6443	rc = E_FAIL);
6444
6445	Bstr accessError;
6446	rc = hd->getAccessible (accessError);
6447	CheckComRCBreakRC (rc);
6448
6449	if (!accessError.isNull())
6450	{
6451	rc = setError (E_FAIL,
6452	tr ("Hard disk '%ls' is not accessible (%ls)"),
6453	hd->toString().raw(), accessError.raw());
6454	break;
6455	}
6456	}
6457	CheckComRCReturnRC (rc);
6458	}
6459
6460	HDData::HDAttachmentList attachments;
6461
6462	// second pass: perform changes
6463	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
6464	it != mHDData->mHDAttachments.end();
6465	++ it)
6466	{
6467	ComObjPtr <HardDiskAttachment> hda = *it;
6468	ComObjPtr <HardDisk> hd = hda->hardDisk();
6469	AutoLock hdLock (hd);
6470
6471	ComObjPtr <HardDisk> parent = hd->parent();
6472	AutoLock parentHdLock (parent);
6473
6474	ComObjPtr <HardDisk> newHd;
6475
6476	// clear busy flag if the VM is online
6477	if (aOnline)
6478	hd->clearBusy();
6479	// increase readers
6480	hd->addReader();
6481
6482	if (hd->isParentImmutable())
6483	{
6484	aProgress->advanceOperation (Bstr (Utf8StrFmt (
6485	tr ("Preserving immutable hard disk '%ls'"),
6486	parent->toString (true /* aShort */).raw())));
6487
6488	parentHdLock.unlock();
6489	alock.leave();
6490
6491	// create a copy of the independent diff
6492	ComObjPtr <HVirtualDiskImage> vdi;
6493	rc = hd->asVDI()->cloneDiffImage (aFolder, mData->mUuid, vdi,
6494	aProgress);
6495	newHd = vdi;
6496
6497	alock.enter();
6498	parentHdLock.lock();
6499
6500	// decrease readers (hd is no more used for reading in any case)
6501	hd->releaseReader();
6502	}
6503	else
6504	{
6505	// checked in the first pass
6506	Assert (hd->type() == HardDiskType_NormalHardDisk);
6507
6508	aProgress->advanceOperation (Bstr (Utf8StrFmt (
6509	tr ("Creating a differencing hard disk for '%ls'"),
6510	hd->root()->toString (true /* aShort */).raw())));
6511
6512	parentHdLock.unlock();
6513	alock.leave();
6514
6515	// create a new diff for the image being attached
6516	ComObjPtr <HVirtualDiskImage> vdi;
6517	rc = hd->createDiffHardDisk (aFolder, mData->mUuid, vdi, aProgress);
6518	newHd = vdi;
6519
6520	alock.enter();
6521	parentHdLock.lock();
6522
6523	if (SUCCEEDED (rc))
6524	{
6525	// if online, hd must keep a reader referece
6526	if (!aOnline)
6527	hd->releaseReader();
6528	}
6529	else
6530	{
6531	// decrease readers
6532	hd->releaseReader();
6533	}
6534	}
6535
6536	if (SUCCEEDED (rc))
6537	{
6538	ComObjPtr <HardDiskAttachment> newHda;
6539	newHda.createObject();
6540	rc = newHda->init (newHd, hda->controller(), hda->deviceNumber(),
6541	false /* aDirty */);
6542
6543	if (SUCCEEDED (rc))
6544	{
6545	// associate the snapshot id with the old hard disk
6546	if (hd->type() != HardDiskType_WritethroughHardDisk && aSnapshotId)
6547	hd->setSnapshotId (*aSnapshotId);
6548
6549	// add the new attachment
6550	attachments.push_back (newHda);
6551
6552	// if online, newHd must be marked as busy
6553	if (aOnline)
6554	newHd->setBusy();
6555	}
6556	}
6557
6558	if (FAILED (rc))
6559	{
6560	// set busy flag back if the VM is online
6561	if (aOnline)
6562	hd->setBusy();
6563	break;
6564	}
6565	}
6566
6567	if (SUCCEEDED (rc))
6568	{
6569	// replace the whole list of attachments with the new one
6570	mHDData->mHDAttachments = attachments;
6571	}
6572	else
6573	{
6574	// delete those diffs we've just created
6575	for (HDData::HDAttachmentList::const_iterator it = attachments.begin();
6576	it != attachments.end();
6577	++ it)
6578	{
6579	ComObjPtr <HardDisk> hd = (*it)->hardDisk();
6580	AutoLock hdLock (hd);
6581	Assert (hd->children().size() == 0);
6582	Assert (hd->isDifferencing());
6583	// unregisterDiffHardDisk() is supposed to delete and uninit
6584	// the differencing hard disk
6585	mParent->unregisterDiffHardDisk (hd);
6586	}
6587	}
6588
6589	return rc;
6590	}
6591
6592	/**
6593	* Deletes differencing hard disks created by createSnapshotDiffs() in case
6594	* if snapshot creation was failed.
6595	*
6596	* @param aSnapshot failed snapshot
6597	*
6598	* @note Locks mParent + this object for writing.
6599	*/
6600	HRESULT Machine::deleteSnapshotDiffs (const ComObjPtr <Snapshot> &aSnapshot)
6601	{
6602	AssertReturn (!aSnapshot.isNull(), E_FAIL);
6603
6604	AutoCaller autoCaller (this);
6605	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6606
6607	/* accessing mParent methods below needs mParent lock */
6608	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
6609
6610	/* short cut: check whether attachments are all the same */
6611	if (mHDData->mHDAttachments == aSnapshot->data().mMachine->mHDData->mHDAttachments)
6612	return S_OK;
6613
6614	HRESULT rc = S_OK;
6615
6616	for (HDData::HDAttachmentList::const_iterator it = mHDData->mHDAttachments.begin();
6617	it != mHDData->mHDAttachments.end();
6618	++ it)
6619	{
6620	ComObjPtr <HardDiskAttachment> hda = *it;
6621	ComObjPtr <HardDisk> hd = hda->hardDisk();
6622	AutoLock hdLock (hd);
6623
6624	ComObjPtr <HardDisk> parent = hd->parent();
6625	AutoLock parentHdLock (parent);
6626
6627	if (!parent \|\| parent->snapshotId() != aSnapshot->data().mId)
6628	continue;
6629
6630	/* must not have children */
6631	ComAssertRet (hd->children().size() == 0, E_FAIL);
6632
6633	/* deassociate the old hard disk from the given snapshot's ID */
6634	parent->setSnapshotId (Guid());
6635
6636	/* unregisterDiffHardDisk() is supposed to delete and uninit
6637	* the differencing hard disk */
6638	rc = mParent->unregisterDiffHardDisk (hd);
6639	/* continue on error */
6640	}
6641
6642	/* restore the whole list of attachments from the failed snapshot */
6643	mHDData->mHDAttachments = aSnapshot->data().mMachine->mHDData->mHDAttachments;
6644
6645	return rc;
6646	}
6647
6648	/**
6649	* Helper to lock the machine configuration for write access.
6650	*
6651	* @return S_OK or E_FAIL and sets error info on failure
6652	*
6653	* @note Doesn't lock anything (must be called from this object's lock)
6654	*/
6655	HRESULT Machine::lockConfig()
6656	{
6657	HRESULT rc = S_OK;
6658
6659	if (!isConfigLocked())
6660	{
6661	/* open the associated config file */
6662	int vrc = RTFileOpen (&mData->mHandleCfgFile,
6663	Utf8Str (mData->mConfigFileFull),
6664	RTFILE_O_READWRITE \| RTFILE_O_OPEN \|
6665	RTFILE_O_DENY_WRITE);
6666	if (VBOX_FAILURE (vrc))
6667	mData->mHandleCfgFile = NIL_RTFILE;
6668	}
6669
6670	LogFlowThisFunc (("mConfigFile={%ls}, mHandleCfgFile=%d, rc=%08X\n",
6671	mData->mConfigFileFull.raw(), mData->mHandleCfgFile, rc));
6672	return rc;
6673	}
6674
6675	/**
6676	* Helper to unlock the machine configuration from write access
6677	*
6678	* @return S_OK
6679	*
6680	* @note Doesn't lock anything.
6681	* @note Not thread safe (must be called from this object's lock).
6682	*/
6683	HRESULT Machine::unlockConfig()
6684	{
6685	HRESULT rc = S_OK;
6686
6687	if (isConfigLocked())
6688	{
6689	RTFileFlush(mData->mHandleCfgFile);
6690	RTFileClose(mData->mHandleCfgFile);
6691	/** @todo flush the directory. */
6692	mData->mHandleCfgFile = NIL_RTFILE;
6693	}
6694
6695	LogFlowThisFunc (("\n"));
6696
6697	return rc;
6698	}
6699
6700	/**
6701	* Returns true if the settings file is located in the directory named exactly
6702	* as the machine. This will be true if the machine settings structure was
6703	* created by default in #openConfigLoader().
6704	*
6705	* @param aSettingsDir if not NULL, the full machine settings file directory
6706	* name will be assigned there.
6707	*
6708	* @note Doesn't lock anything.
6709	* @note Not thread safe (must be called from this object's lock).
6710	*/
6711	bool Machine::isInOwnDir (Utf8Str aSettingsDir / = NULL */)
6712	{
6713	Utf8Str settingsDir = mData->mConfigFileFull;
6714	RTPathStripFilename (settingsDir.mutableRaw());
6715	char *dirName = RTPathFilename (settingsDir);
6716
6717	AssertReturn (dirName, false);
6718
6719	/* if we don't rename anything on name change, return false shorlty */
6720	if (!mUserData->mNameSync)
6721	return false;
6722
6723	if (aSettingsDir)
6724	*aSettingsDir = settingsDir;
6725
6726	return Bstr (dirName) == mUserData->mName;
6727	}
6728
6729	/**
6730	* @note Locks objects for reading!
6731	*/
6732	bool Machine::isModified()
6733	{
6734	AutoCaller autoCaller (this);
6735	AssertComRCReturn (autoCaller.rc(), false);
6736
6737	AutoReaderLock alock (this);
6738
6739	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
6740	if (mNetworkAdapters [slot] && mNetworkAdapters [slot]->isModified())
6741	return true;
6742
6743	return
6744	mUserData.isBackedUp() \|\|
6745	mHWData.isBackedUp() \|\|
6746	mHDData.isBackedUp() \|\|
6747	#ifdef VBOX_VRDP
6748	(mVRDPServer && mVRDPServer->isModified()) \|\|
6749	#endif
6750	(mDVDDrive && mDVDDrive->isModified()) \|\|
6751	(mFloppyDrive && mFloppyDrive->isModified()) \|\|
6752	(mAudioAdapter && mAudioAdapter->isModified()) \|\|
6753	(mUSBController && mUSBController->isModified()) \|\|
6754	(mBIOSSettings && mBIOSSettings->isModified());
6755	}
6756
6757	/**
6758	* @note This method doesn't check (ignores) actual changes to mHDData.
6759	* Use mHDData.mHDAttachmentsChanged right after #commit() instead.
6760	*
6761	* @param aIgnoreUserData \|true\| to ignore changes to mUserData
6762	*
6763	* @note Locks objects for reading!
6764	*/
6765	bool Machine::isReallyModified (bool aIgnoreUserData /* = false */)
6766	{
6767	AutoCaller autoCaller (this);
6768	AssertComRCReturn (autoCaller.rc(), false);
6769
6770	AutoReaderLock alock (this);
6771
6772	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
6773	if (mNetworkAdapters [slot] && mNetworkAdapters [slot]->isReallyModified())
6774	return true;
6775
6776	return
6777	(!aIgnoreUserData && mUserData.hasActualChanges()) \|\|
6778	mHWData.hasActualChanges() \|\|
6779	/* ignore mHDData */
6780	//mHDData.hasActualChanges() \|\|
6781	#ifdef VBOX_VRDP
6782	(mVRDPServer && mVRDPServer->isReallyModified()) \|\|
6783	#endif
6784	(mDVDDrive && mDVDDrive->isReallyModified()) \|\|
6785	(mFloppyDrive && mFloppyDrive->isReallyModified()) \|\|
6786	(mAudioAdapter && mAudioAdapter->isReallyModified()) \|\|
6787	(mUSBController && mUSBController->isReallyModified()) \|\|
6788	(mBIOSSettings && mBIOSSettings->isReallyModified());
6789	}
6790
6791	/**
6792	* Discards all changes to machine settings.
6793	*
6794	* @param aNotify whether to notify the direct session about changes or not
6795	*
6796	* @note Locks objects!
6797	*/
6798	void Machine::rollback (bool aNotify)
6799	{
6800	AutoCaller autoCaller (this);
6801	AssertComRCReturn (autoCaller.rc(), (void) 0);
6802
6803	AutoLock alock (this);
6804
6805	mUserData.rollback();
6806
6807	mHWData.rollback();
6808
6809	if (mHDData.isBackedUp())
6810	fixupHardDisks (false /* aCommit */);
6811
6812	bool vrdpChanged = false, dvdChanged = false, floppyChanged = false,
6813	usbChanged = false;
6814	ComPtr <INetworkAdapter> networkAdapters [ELEMENTS (mNetworkAdapters)];
6815
6816	if (mBIOSSettings)
6817	mBIOSSettings->rollback();
6818
6819	#ifdef VBOX_VRDP
6820	if (mVRDPServer)
6821	vrdpChanged = mVRDPServer->rollback();
6822	#endif
6823
6824	if (mDVDDrive)
6825	dvdChanged = mDVDDrive->rollback();
6826
6827	if (mFloppyDrive)
6828	floppyChanged = mFloppyDrive->rollback();
6829
6830	if (mAudioAdapter)
6831	mAudioAdapter->rollback();
6832
6833	if (mUSBController)
6834	usbChanged = mUSBController->rollback();
6835
6836	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
6837	if (mNetworkAdapters [slot])
6838	if (mNetworkAdapters [slot]->rollback())
6839	networkAdapters [slot] = mNetworkAdapters [slot];
6840
6841	if (aNotify)
6842	{
6843	// inform the direct session about changes
6844
6845	ComObjPtr <Machine> that = this;
6846	alock.leave();
6847
6848	if (vrdpChanged)
6849	that->onVRDPServerChange();
6850	if (dvdChanged)
6851	that->onDVDDriveChange();
6852	if (floppyChanged)
6853	that->onFloppyDriveChange();
6854	if (usbChanged)
6855	that->onUSBControllerChange();
6856	for (ULONG slot = 0; slot < ELEMENTS (networkAdapters); slot ++)
6857	if (networkAdapters [slot])
6858	that->onNetworkAdapterChange (networkAdapters [slot]);
6859	}
6860	}
6861
6862	/**
6863	* Commits all the changes to machine settings.
6864	*
6865	* Note that when committing fails at some stage, it still continues
6866	* until the end. So, all data will either be actually committed or rolled
6867	* back (for failed cases) and the returned result code will describe the
6868	* first failure encountered. However, #isModified() will still return true
6869	* in case of failure, to indicade that settings in memory and on disk are
6870	* out of sync.
6871	*
6872	* @note Locks objects!
6873	*/
6874	HRESULT Machine::commit()
6875	{
6876	AutoCaller autoCaller (this);
6877	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
6878
6879	AutoLock alock (this);
6880
6881	HRESULT rc = S_OK;
6882
6883	/*
6884	* use safe commit to ensure Snapshot machines (that share mUserData)
6885	* will still refer to a valid memory location
6886	*/
6887	mUserData.commitCopy();
6888
6889	mHWData.commit();
6890
6891	if (mHDData.isBackedUp())
6892	rc = fixupHardDisks (true /* aCommit */);
6893
6894	mBIOSSettings->commit();
6895	#ifdef VBOX_VRDP
6896	mVRDPServer->commit();
6897	#endif
6898	mDVDDrive->commit();
6899	mFloppyDrive->commit();
6900	mAudioAdapter->commit();
6901	mUSBController->commit();
6902
6903	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
6904	mNetworkAdapters [slot]->commit();
6905
6906	if (mType == IsSessionMachine)
6907	{
6908	/* attach new data to the primary machine and reshare it */
6909	mPeer->mUserData.attach (mUserData);
6910	mPeer->mHWData.attach (mHWData);
6911	mPeer->mHDData.attach (mHDData);
6912	}
6913
6914	if (FAILED (rc))
6915	{
6916	/*
6917	* backup arbitrary data item to cause #isModified() to still return
6918	* true in case of any error
6919	*/
6920	mHWData.backup();
6921	}
6922
6923	return rc;
6924	}
6925
6926	/**
6927	* Copies all the hardware data from the given machine.
6928	*
6929	* @note
6930	* This method must be called from under this object's lock.
6931	* @note
6932	* This method doesn't call #commit(), so all data remains backed up
6933	* and unsaved.
6934	*/
6935	void Machine::copyFrom (Machine *aThat)
6936	{
6937	AssertReturn (mType == IsMachine \|\| mType == IsSessionMachine, (void) 0);
6938	AssertReturn (aThat->mType == IsSnapshotMachine, (void) 0);
6939
6940	mHWData.assignCopy (aThat->mHWData);
6941
6942	// create copies of all shared folders (mHWData after attiching a copy
6943	// contains just references to original objects)
6944	for (HWData::SharedFolderList::iterator it = mHWData->mSharedFolders.begin();
6945	it != mHWData->mSharedFolders.end();
6946	++ it)
6947	{
6948	ComObjPtr <SharedFolder> folder;
6949	folder.createObject();
6950	HRESULT rc = folder->initCopy (machine(), *it);
6951	AssertComRC (rc);
6952	*it = folder;
6953	}
6954
6955	mBIOSSettings->copyFrom (aThat->mBIOSSettings);
6956	#ifdef VBOX_VRDP
6957	mVRDPServer->copyFrom (aThat->mVRDPServer);
6958	#endif
6959	mDVDDrive->copyFrom (aThat->mDVDDrive);
6960	mFloppyDrive->copyFrom (aThat->mFloppyDrive);
6961	mAudioAdapter->copyFrom (aThat->mAudioAdapter);
6962	mUSBController->copyFrom (aThat->mUSBController);
6963
6964	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
6965	mNetworkAdapters [slot]->copyFrom (aThat->mNetworkAdapters [slot]);
6966	}
6967
6968	/////////////////////////////////////////////////////////////////////////////
6969	// SessionMachine class
6970	/////////////////////////////////////////////////////////////////////////////
6971
6972	/** Task structure for asynchronous VM operations */
6973	struct SessionMachine::Task
6974	{
6975	Task (SessionMachine m, Progress p)
6976	: machine (m), progress (p)
6977	, state (m->data()->mMachineState) // save the current machine state
6978	, subTask (false), settingsChanged (false)
6979	{}
6980
6981	void modifyLastState (MachineState_T s)
6982	{
6983	const_cast <MachineState_T > (&state) = s;
6984	}
6985
6986	virtual void handler() = 0;
6987
6988	const ComObjPtr <SessionMachine> machine;
6989	const ComObjPtr <Progress> progress;
6990	const MachineState_T state;
6991
6992	bool subTask : 1;
6993	bool settingsChanged : 1;
6994	};
6995
6996	/** Take snapshot task */
6997	struct SessionMachine::TakeSnapshotTask : public SessionMachine::Task
6998	{
6999	TakeSnapshotTask (SessionMachine *m)
7000	: Task (m, NULL) {}
7001
7002	void handler() { machine->takeSnapshotHandler (*this); }
7003	};
7004
7005	/** Discard snapshot task */
7006	struct SessionMachine::DiscardSnapshotTask : public SessionMachine::Task
7007	{
7008	DiscardSnapshotTask (SessionMachine m, Progress p, Snapshot *s)
7009	: Task (m, p)
7010	, snapshot (s) {}
7011
7012	DiscardSnapshotTask (const Task &task, Snapshot *s)
7013	: Task (task)
7014	, snapshot (s) {}
7015
7016	void handler() { machine->discardSnapshotHandler (*this); }
7017
7018	const ComObjPtr <Snapshot> snapshot;
7019	};
7020
7021	/** Discard current state task */
7022	struct SessionMachine::DiscardCurrentStateTask : public SessionMachine::Task
7023	{
7024	DiscardCurrentStateTask (SessionMachine m, Progress p,
7025	bool discardCurSnapshot)
7026	: Task (m, p), discardCurrentSnapshot (discardCurSnapshot) {}
7027
7028	void handler() { machine->discardCurrentStateHandler (*this); }
7029
7030	const bool discardCurrentSnapshot;
7031	};
7032
7033	////////////////////////////////////////////////////////////////////////////////
7034
7035	DEFINE_EMPTY_CTOR_DTOR (SessionMachine)
7036
7037	HRESULT SessionMachine::FinalConstruct()
7038	{
7039	LogFlowThisFunc (("\n"));
7040
7041	/* set the proper type to indicate we're the SessionMachine instance */
7042	unconst (mType) = IsSessionMachine;
7043
7044	#if defined(__WIN__)
7045	mIPCSem = NULL;
7046	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7047	mIPCSem = -1;
7048	#endif
7049
7050	return S_OK;
7051	}
7052
7053	void SessionMachine::FinalRelease()
7054	{
7055	LogFlowThisFunc (("\n"));
7056
7057	uninit (Uninit::Unexpected);
7058	}
7059
7060	/**
7061	* @note Must be called only by Machine::openSession() from its own write lock.
7062	*/
7063	HRESULT SessionMachine::init (Machine *aMachine)
7064	{
7065	LogFlowThisFuncEnter();
7066	LogFlowThisFunc (("mName={%ls}\n", aMachine->mUserData->mName.raw()));
7067
7068	AssertReturn (aMachine, E_INVALIDARG);
7069
7070	AssertReturn (aMachine->lockHandle()->isLockedOnCurrentThread(), E_FAIL);
7071
7072	/* Enclose the state transition NotReady->InInit->Ready */
7073	AutoInitSpan autoInitSpan (this);
7074	AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
7075
7076	/* create the interprocess semaphore */
7077	#if defined(__WIN__)
7078	mIPCSemName = aMachine->mData->mConfigFileFull;
7079	for (size_t i = 0; i < mIPCSemName.length(); i++)
7080	if (mIPCSemName[i] == '\\')
7081	mIPCSemName[i] = '/';
7082	mIPCSem = ::CreateMutex (NULL, FALSE, mIPCSemName);
7083	ComAssertMsgRet (mIPCSem, ("Cannot create IPC mutex, err=0x%08X", ::GetLastError()),
7084	E_FAIL);
7085	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7086	Utf8Str configFile = aMachine->mData->mConfigFileFull;
7087	char *pszConfigFile = NULL;
7088	RTStrUtf8ToCurrentCP (&pszConfigFile, configFile);
7089	key_t key = ::ftok (pszConfigFile, 0);
7090	RTStrFree (pszConfigFile);
7091	mIPCSem = ::semget (key, 1, S_IRWXU \| S_IRWXG \| S_IRWXO \| IPC_CREAT);
7092	ComAssertMsgRet (mIPCSem >= 0, ("Cannot create IPC semaphore, errno=%d", errno),
7093	E_FAIL);
7094	/* set the initial value to 1 */
7095	int rv = ::semctl (mIPCSem, 0, SETVAL, 1);
7096	ComAssertMsgRet (rv == 0, ("Cannot init IPC semaphore, errno=%d", errno),
7097	E_FAIL);
7098	#endif
7099
7100	/* memorize the peer Machine */
7101	unconst (mPeer) = aMachine;
7102	/* share the parent pointer */
7103	unconst (mParent) = aMachine->mParent;
7104
7105	/* take the pointers to data to share */
7106	mData.share (aMachine->mData);
7107	mSSData.share (aMachine->mSSData);
7108
7109	mUserData.share (aMachine->mUserData);
7110	mHWData.share (aMachine->mHWData);
7111	mHDData.share (aMachine->mHDData);
7112
7113	unconst (mBIOSSettings).createObject();
7114	mBIOSSettings->init (this, aMachine->mBIOSSettings);
7115	#ifdef VBOX_VRDP
7116	/* create another VRDPServer object that will be mutable */
7117	unconst (mVRDPServer).createObject();
7118	mVRDPServer->init (this, aMachine->mVRDPServer);
7119	#endif
7120	/* create another DVD drive object that will be mutable */
7121	unconst (mDVDDrive).createObject();
7122	mDVDDrive->init (this, aMachine->mDVDDrive);
7123	/* create another floppy drive object that will be mutable */
7124	unconst (mFloppyDrive).createObject();
7125	mFloppyDrive->init (this, aMachine->mFloppyDrive);
7126	/* create another audio adapter object that will be mutable */
7127	unconst (mAudioAdapter).createObject();
7128	mAudioAdapter->init (this, aMachine->mAudioAdapter);
7129	/* create another USB controller object that will be mutable */
7130	unconst (mUSBController).createObject();
7131	mUSBController->init (this, aMachine->mUSBController);
7132	/* create a list of network adapters that will be mutable */
7133	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
7134	{
7135	unconst (mNetworkAdapters [slot]).createObject();
7136	mNetworkAdapters [slot]->init (this, aMachine->mNetworkAdapters [slot]);
7137	}
7138
7139	/* Confirm a successful initialization when it's the case */
7140	autoInitSpan.setSucceeded();
7141
7142	LogFlowThisFuncLeave();
7143	return S_OK;
7144	}
7145
7146	/**
7147	* Uninitializes this session object. If the reason is other than
7148	* Uninit::Unexpected, then this method MUST be called from #checkForDeath().
7149	*
7150	* @param aReason uninitialization reason
7151	*
7152	* @note Locks mParent + this object for writing.
7153	*/
7154	void SessionMachine::uninit (Uninit::Reason aReason)
7155	{
7156	LogFlowThisFuncEnter();
7157	LogFlowThisFunc (("reason=%d\n", aReason));
7158
7159	/*
7160	* Strongly reference ourselves to prevent this object deletion after
7161	* mData->mSession.mMachine.setNull() below (which can release the last
7162	* reference and call the destructor). Important: this must be done before
7163	* accessing any members (and before AutoUninitSpan that does it as well).
7164	* This self reference will be released as the very last step on return.
7165	*/
7166	ComObjPtr <SessionMachine> selfRef = this;
7167
7168	/* Enclose the state transition Ready->InUninit->NotReady */
7169	AutoUninitSpan autoUninitSpan (this);
7170	if (autoUninitSpan.uninitDone())
7171	{
7172	LogFlowThisFunc (("Already uninitialized\n"));
7173	LogFlowThisFuncLeave();
7174	return;
7175	}
7176
7177	if (autoUninitSpan.initFailed())
7178	{
7179	/*
7180	* We've been called by init() because it's failed. It's not really
7181	* necessary (nor it's safe) to perform the regular uninit sequence
7182	* below, the following is enough.
7183	*/
7184	LogFlowThisFunc (("Initialization failed\n"));
7185	#if defined(__WIN__)
7186	if (mIPCSem)
7187	::CloseHandle (mIPCSem);
7188	mIPCSem = NULL;
7189	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7190	if (mIPCSem >= 0)
7191	::semctl (mIPCSem, 0, IPC_RMID);
7192	mIPCSem = -1;
7193	#endif
7194	uninitDataAndChildObjects();
7195	unconst (mParent).setNull();
7196	unconst (mPeer).setNull();
7197	LogFlowThisFuncLeave();
7198	return;
7199	}
7200
7201	/*
7202	* We need to lock this object in uninit() because the lock is shared
7203	* with mPeer (as well as data we modify below).
7204	* mParent->addProcessToReap() and others need mParent lock.
7205	*/
7206	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7207
7208	if (isModified())
7209	{
7210	LogWarningThisFunc (("Discarding unsaved settings changes!\n"));
7211	rollback (false /* aNotify */);
7212	}
7213
7214	Assert (!mSnapshotData.mStateFilePath \|\| !mSnapshotData.mSnapshot);
7215	if (mSnapshotData.mStateFilePath)
7216	{
7217	LogWarningThisFunc (("canceling failed save state request!\n"));
7218	endSavingState (FALSE /* aSuccess */);
7219	}
7220	else if (!!mSnapshotData.mSnapshot)
7221	{
7222	LogWarningThisFunc (("canceling untaken snapshot!\n"));
7223	endTakingSnapshot (FALSE /* aSuccess */);
7224	}
7225
7226	/* release all captured USB devices */
7227	mParent->host()->releaseAllUSBDevices (this);
7228
7229	if (!mData->mSession.mType.isNull())
7230	{
7231	/* mType is not null when this machine's process has been started by
7232	* VirtualBox::OpenRemoteSession(), therefore it is our child. We
7233	* need to queue the PID to reap the process (and avoid zombies on
7234	* Linux). */
7235	Assert (mData->mSession.mPid != NIL_RTPROCESS);
7236	mParent->addProcessToReap (mData->mSession.mPid);
7237	}
7238
7239	mData->mSession.mPid = NIL_RTPROCESS;
7240
7241	if (aReason == Uninit::Unexpected)
7242	{
7243	/* Uninitialization didn't come from #checkForDeath(), so tell the
7244	* client watcher thread to update the set of machines that have open
7245	* sessions. */
7246	mParent->updateClientWatcher();
7247	}
7248
7249	/* uninitialize all remote controls */
7250	if (mData->mSession.mRemoteControls.size())
7251	{
7252	LogFlowThisFunc (("Closing remote sessions (%d):\n",
7253	mData->mSession.mRemoteControls.size()));
7254
7255	Data::Session::RemoteControlList::iterator it =
7256	mData->mSession.mRemoteControls.begin();
7257	while (it != mData->mSession.mRemoteControls.end())
7258	{
7259	LogFlowThisFunc ((" Calling remoteControl->Uninitialize()...\n"));
7260	HRESULT rc = (*it)->Uninitialize();
7261	LogFlowThisFunc ((" remoteControl->Uninitialize() returned %08X\n", rc));
7262	if (FAILED (rc))
7263	LogWarningThisFunc (("Forgot to close the remote session?\n"));
7264	++ it;
7265	}
7266	mData->mSession.mRemoteControls.clear();
7267	}
7268
7269	/*
7270	* An expected uninitialization can come only from #checkForDeath().
7271	* Otherwise it means that something's got really wrong (for examlple,
7272	* the Session implementation has released the VirtualBox reference
7273	* before it triggered #OnSessionEnd(), or before releasing IPC semaphore,
7274	* etc). However, it's also possible, that the client releases the IPC
7275	* semaphore correctly (i.e. before it releases the VirtualBox reference),
7276	* but but the VirtualBox release event comes first to the server process.
7277	* This case is practically possible, so we should not assert on an
7278	* unexpected uninit, just log a warning.
7279	*/
7280
7281	if ((aReason == Uninit::Unexpected))
7282	LogWarningThisFunc (("Unexpected SessionMachine uninitialization!\n"));
7283
7284	if (aReason != Uninit::Normal)
7285	mData->mSession.mDirectControl.setNull();
7286	else
7287	{
7288	/* this must be null here (see #OnSessionEnd()) */
7289	Assert (mData->mSession.mDirectControl.isNull());
7290	Assert (mData->mSession.mState == SessionState_SessionClosing);
7291	Assert (!mData->mSession.mProgress.isNull());
7292
7293	mData->mSession.mProgress->notifyComplete (S_OK);
7294	mData->mSession.mProgress.setNull();
7295	}
7296
7297	/* remove the association between the peer machine and this session machine */
7298	Assert (mData->mSession.mMachine == this \|\|
7299	aReason == Uninit::Unexpected);
7300
7301	/* reset the rest of session data */
7302	mData->mSession.mMachine.setNull();
7303	mData->mSession.mState = SessionState_SessionClosed;
7304	mData->mSession.mType.setNull();
7305
7306	/* close the interprocess semaphore before leaving the shared lock */
7307	#if defined(__WIN__)
7308	if (mIPCSem)
7309	::CloseHandle (mIPCSem);
7310	mIPCSem = NULL;
7311	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7312	if (mIPCSem >= 0)
7313	::semctl (mIPCSem, 0, IPC_RMID);
7314	mIPCSem = -1;
7315	#endif
7316
7317	/* fire an event */
7318	mParent->onSessionStateChange (mData->mUuid, SessionState_SessionClosed);
7319
7320	uninitDataAndChildObjects();
7321
7322	/* leave the shared lock before setting the above two to NULL */
7323	alock.leave();
7324
7325	unconst (mParent).setNull();
7326	unconst (mPeer).setNull();
7327
7328	LogFlowThisFuncLeave();
7329	}
7330
7331	// AutoLock::Lockable interface
7332	////////////////////////////////////////////////////////////////////////////////
7333
7334	/**
7335	* Overrides VirtualBoxBase::lockHandle() in order to share the lock handle
7336	* with the primary Machine instance (mPeer).
7337	*/
7338	AutoLock::Handle *SessionMachine::lockHandle() const
7339	{
7340	AssertReturn (!mPeer.isNull(), NULL);
7341	return mPeer->lockHandle();
7342	}
7343
7344	// IInternalMachineControl methods
7345	////////////////////////////////////////////////////////////////////////////////
7346
7347	/**
7348	* @note Locks the same as #setMachineState() does.
7349	*/
7350	STDMETHODIMP SessionMachine::UpdateState (MachineState_T machineState)
7351	{
7352	return setMachineState (machineState);
7353	}
7354
7355	/**
7356	* @note Locks this object for reading.
7357	*/
7358	STDMETHODIMP SessionMachine::GetIPCId (BSTR *id)
7359	{
7360	AutoCaller autoCaller (this);
7361	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7362
7363	AutoReaderLock alock (this);
7364
7365	#if defined(__WIN__)
7366	mIPCSemName.cloneTo (id);
7367	return S_OK;
7368	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
7369	mData->mConfigFileFull.cloneTo (id);
7370	return S_OK;
7371	#else
7372	return S_FAIL;
7373	#endif
7374	}
7375
7376	/**
7377	* @note Locks this object for reading.
7378	*/
7379	STDMETHODIMP SessionMachine::GetLogFolder (BSTR *aLogFolder)
7380	{
7381	AutoCaller autoCaller (this);
7382	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7383
7384	AutoReaderLock alock (this);
7385
7386	Utf8Str logFolder;
7387	getLogFolder (logFolder);
7388
7389	Bstr (logFolder).cloneTo (aLogFolder);
7390
7391	return S_OK;
7392	}
7393
7394	/**
7395	* Goes through the USB filters of the given machine to see if the given
7396	* device matches any filter or not.
7397	*
7398	* @note Locks the same as USBController::hasMatchingFilter() does.
7399	*/
7400	STDMETHODIMP SessionMachine::RunUSBDeviceFilters (IUSBDevice *aUSBDevice,
7401	BOOL *aMatched)
7402	{
7403	if (!aUSBDevice)
7404	return E_INVALIDARG;
7405	if (!aMatched)
7406	return E_POINTER;
7407
7408	AutoCaller autoCaller (this);
7409	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7410
7411	*aMatched = mUSBController->hasMatchingFilter (aUSBDevice);
7412
7413	return S_OK;
7414	}
7415
7416	/**
7417	* @note Locks the same as Host::captureUSBDevice() does.
7418	*/
7419	STDMETHODIMP SessionMachine::CaptureUSBDevice (INPTR GUIDPARAM aId,
7420	IUSBDevice **aHostDevice)
7421	{
7422	if (!aHostDevice)
7423	return E_POINTER;
7424
7425	AutoCaller autoCaller (this);
7426	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7427
7428	// if cautureUSBDevice() fails, it must have set extended error info
7429	return mParent->host()->captureUSBDevice (this, aId, aHostDevice);
7430	}
7431
7432	/**
7433	* @note Locks the same as Host::releaseUSBDevice() does.
7434	*/
7435	STDMETHODIMP SessionMachine::ReleaseUSBDevice (INPTR GUIDPARAM aId)
7436	{
7437	AutoCaller autoCaller (this);
7438	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7439
7440	return mParent->host()->releaseUSBDevice (this, aId);
7441	}
7442
7443	/**
7444	* @note Locks the same as Host::autoCaptureUSBDevices() does.
7445	*/
7446	STDMETHODIMP SessionMachine::AutoCaptureUSBDevices (IUSBDeviceCollection **aHostDevices)
7447	{
7448	AutoCaller autoCaller (this);
7449	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7450
7451	return mParent->host()->autoCaptureUSBDevices (this, aHostDevices);
7452	}
7453
7454	/**
7455	* @note Locks the same as Host::releaseAllUSBDevices() does.
7456	*/
7457	STDMETHODIMP SessionMachine::ReleaseAllUSBDevices()
7458	{
7459	AutoCaller autoCaller (this);
7460	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7461
7462	return mParent->host()->releaseAllUSBDevices (this);
7463	}
7464
7465	/**
7466	* @note Locks mParent + this object for writing.
7467	*/
7468	STDMETHODIMP SessionMachine::OnSessionEnd (ISession *aSession,
7469	IProgress **aProgress)
7470	{
7471	LogFlowThisFuncEnter();
7472
7473	AssertReturn (aSession, E_INVALIDARG);
7474	AssertReturn (aProgress, E_INVALIDARG);
7475
7476	AutoCaller autoCaller (this);
7477
7478	LogFlowThisFunc (("state=%d\n", autoCaller.state()));
7479	/*
7480	* We don't assert below because it might happen that a non-direct session
7481	* informs us it is closed right after we've been uninitialized -- it's ok.
7482	*/
7483	CheckComRCReturnRC (autoCaller.rc());
7484
7485	/* get IInternalSessionControl interface */
7486	ComPtr <IInternalSessionControl> control (aSession);
7487
7488	ComAssertRet (!control.isNull(), E_INVALIDARG);
7489
7490	/* Progress::init() needs mParent lock */
7491	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7492
7493	if (control.equalsTo (mData->mSession.mDirectControl))
7494	{
7495	ComAssertRet (aProgress, E_POINTER);
7496
7497	/* The direct session is being normally closed by the client process
7498	* ----------------------------------------------------------------- */
7499
7500	/* go to the closing state (essential for all open*Session() calls and
7501	* for #checkForDeath()) */
7502	Assert (mData->mSession.mState == SessionState_SessionOpen);
7503	mData->mSession.mState = SessionState_SessionClosing;
7504
7505	/* set direct control to NULL to release the remote instance */
7506	mData->mSession.mDirectControl.setNull();
7507	LogFlowThisFunc (("Direct control is set to NULL\n"));
7508
7509	/*
7510	* Create the progress object the client will use to wait until
7511	* #checkForDeath() is called to uninitialize this session object
7512	* after it releases the IPC semaphore.
7513	*/
7514	ComObjPtr <Progress> progress;
7515	progress.createObject();
7516	progress->init (mParent, (IMachine *) mPeer, Bstr (tr ("Closing session")),
7517	FALSE /* aCancelable */);
7518	progress.queryInterfaceTo (aProgress);
7519	mData->mSession.mProgress = progress;
7520	}
7521	else
7522	{
7523	/* the remote session is being normally closed */
7524	Data::Session::RemoteControlList::iterator it =
7525	mData->mSession.mRemoteControls.begin();
7526	while (it != mData->mSession.mRemoteControls.end())
7527	{
7528	if (control.equalsTo (*it))
7529	break;
7530	++it;
7531	}
7532	BOOL found = it != mData->mSession.mRemoteControls.end();
7533	ComAssertMsgRet (found, ("The session is not found in the session list!"),
7534	E_INVALIDARG);
7535	mData->mSession.mRemoteControls.remove (*it);
7536	}
7537
7538	LogFlowThisFuncLeave();
7539	return S_OK;
7540	}
7541
7542	/**
7543	* @note Locks mParent + this object for writing.
7544	*/
7545	STDMETHODIMP SessionMachine::BeginSavingState (IProgress aProgress, BSTR aStateFilePath)
7546	{
7547	LogFlowThisFuncEnter();
7548
7549	AssertReturn (aProgress, E_INVALIDARG);
7550	AssertReturn (aStateFilePath, E_POINTER);
7551
7552	AutoCaller autoCaller (this);
7553	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7554
7555	/* mParent->addProgress() needs mParent lock */
7556	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7557
7558	AssertReturn (mData->mMachineState == MachineState_Paused &&
7559	mSnapshotData.mLastState == MachineState_InvalidMachineState &&
7560	mSnapshotData.mProgressId.isEmpty() &&
7561	mSnapshotData.mStateFilePath.isNull(),
7562	E_FAIL);
7563
7564	/* memorize the progress ID and add it to the global collection */
7565	Guid progressId;
7566	HRESULT rc = aProgress->COMGETTER(Id) (progressId.asOutParam());
7567	AssertComRCReturn (rc, rc);
7568	rc = mParent->addProgress (aProgress);
7569	AssertComRCReturn (rc, rc);
7570
7571	Bstr stateFilePath;
7572	/* stateFilePath is null when the machine is not running */
7573	if (mData->mMachineState == MachineState_Paused)
7574	{
7575	stateFilePath = Utf8StrFmt ("%ls%c{%Vuuid}.sav",
7576	mUserData->mSnapshotFolderFull.raw(),
7577	RTPATH_DELIMITER, mData->mUuid.raw());
7578	}
7579
7580	/* fill in the snapshot data */
7581	mSnapshotData.mLastState = mData->mMachineState;
7582	mSnapshotData.mProgressId = progressId;
7583	mSnapshotData.mStateFilePath = stateFilePath;
7584
7585	/* set the state to Saving (this is expected by Console::SaveState()) */
7586	setMachineState (MachineState_Saving);
7587
7588	stateFilePath.cloneTo (aStateFilePath);
7589
7590	return S_OK;
7591	}
7592
7593	/**
7594	* @note Locks mParent + this objects for writing.
7595	*/
7596	STDMETHODIMP SessionMachine::EndSavingState (BOOL aSuccess)
7597	{
7598	LogFlowThisFunc (("\n"));
7599
7600	AutoCaller autoCaller (this);
7601	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7602
7603	/* endSavingState() need mParent lock */
7604	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7605
7606	AssertReturn (mData->mMachineState == MachineState_Saving &&
7607	mSnapshotData.mLastState != MachineState_InvalidMachineState &&
7608	!mSnapshotData.mProgressId.isEmpty() &&
7609	!mSnapshotData.mStateFilePath.isNull(),
7610	E_FAIL);
7611
7612	/*
7613	* on success, set the state to Saved;
7614	* on failure, set the state to the state we had when BeginSavingState() was
7615	* called (this is expected by Console::SaveState() and
7616	* Console::saveStateThread())
7617	*/
7618	if (aSuccess)
7619	setMachineState (MachineState_Saved);
7620	else
7621	setMachineState (mSnapshotData.mLastState);
7622
7623	return endSavingState (aSuccess);
7624	}
7625
7626	/**
7627	* @note Locks mParent + this objects for writing.
7628	*/
7629	STDMETHODIMP SessionMachine::BeginTakingSnapshot (
7630	IConsole *aInitiator, INPTR BSTR aName, INPTR BSTR aDescription,
7631	IProgress aProgress, BSTR aStateFilePath,
7632	IProgress **aServerProgress)
7633	{
7634	LogFlowThisFuncEnter();
7635
7636	AssertReturn (aInitiator && aName, E_INVALIDARG);
7637	AssertReturn (aStateFilePath && aServerProgress, E_POINTER);
7638
7639	LogFlowThisFunc (("aName='%ls'\n", aName));
7640
7641	AutoCaller autoCaller (this);
7642	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7643
7644	/* Progress::init() needs mParent lock */
7645	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7646
7647	AssertReturn ((mData->mMachineState < MachineState_Running \|\|
7648	mData->mMachineState == MachineState_Paused) &&
7649	mSnapshotData.mLastState == MachineState_InvalidMachineState &&
7650	mSnapshotData.mSnapshot.isNull() &&
7651	mSnapshotData.mServerProgress.isNull() &&
7652	mSnapshotData.mCombinedProgress.isNull(),
7653	E_FAIL);
7654
7655	bool takingSnapshotOnline = mData->mMachineState == MachineState_Paused;
7656
7657	if (!takingSnapshotOnline && mData->mMachineState != MachineState_Saved)
7658	{
7659	/*
7660	* save all current settings to ensure current changes are committed
7661	* and hard disks are fixed up
7662	*/
7663	HRESULT rc = saveSettings();
7664	CheckComRCReturnRC (rc);
7665	}
7666
7667	/* check that there are no Writethrough hard disks attached */
7668	for (HDData::HDAttachmentList::const_iterator
7669	it = mHDData->mHDAttachments.begin();
7670	it != mHDData->mHDAttachments.end();
7671	++ it)
7672	{
7673	ComObjPtr <HardDisk> hd = (*it)->hardDisk();
7674	AutoLock hdLock (hd);
7675	if (hd->type() == HardDiskType_WritethroughHardDisk)
7676	return setError (E_FAIL,
7677	tr ("Cannot take a snapshot when there is a Writethrough hard "
7678	" disk attached ('%ls')"), hd->toString().raw());
7679	}
7680
7681	AssertReturn (aProgress \|\| !takingSnapshotOnline, E_FAIL);
7682
7683	/* create an ID for the snapshot */
7684	Guid snapshotId;
7685	snapshotId.create();
7686
7687	Bstr stateFilePath;
7688	/* stateFilePath is null when the machine is not online nor saved */
7689	if (takingSnapshotOnline \|\| mData->mMachineState == MachineState_Saved)
7690	stateFilePath = Utf8StrFmt ("%ls%c{%Vuuid}.sav",
7691	mUserData->mSnapshotFolderFull.raw(),
7692	RTPATH_DELIMITER,
7693	snapshotId.ptr());
7694
7695	/* ensure the directory for the saved state file exists */
7696	if (stateFilePath)
7697	{
7698	Utf8Str dir = stateFilePath;
7699	RTPathStripFilename (dir.mutableRaw());
7700	if (!RTDirExists (dir))
7701	{
7702	int vrc = RTDirCreateFullPath (dir, 0777);
7703	if (VBOX_FAILURE (vrc))
7704	return setError (E_FAIL,
7705	tr ("Could not create a directory '%s' to save the "
7706	"VM state to (%Vrc)"),
7707	dir.raw(), vrc);
7708	}
7709	}
7710
7711	/* create a snapshot machine object */
7712	ComObjPtr <SnapshotMachine> snapshotMachine;
7713	snapshotMachine.createObject();
7714	HRESULT rc = snapshotMachine->init (this, snapshotId, stateFilePath);
7715	AssertComRCReturn (rc, rc);
7716
7717	Bstr progressDesc = Bstr (tr ("Taking snapshot of virtual machine"));
7718	Bstr firstOpDesc = Bstr (tr ("Preparing to take snapshot"));
7719
7720	/*
7721	* create a server-side progress object (it will be descriptionless
7722	* when we need to combine it with the VM-side progress, i.e. when we're
7723	* taking a snapshot online). The number of operations is:
7724	* 1 (preparing) + # of VDIs + 1 (if the state is saved so we need to copy it)
7725	*/
7726	ComObjPtr <Progress> serverProgress;
7727	{
7728	ULONG opCount = 1 + mHDData->mHDAttachments.size();
7729	if (mData->mMachineState == MachineState_Saved)
7730	opCount ++;
7731	serverProgress.createObject();
7732	if (takingSnapshotOnline)
7733	rc = serverProgress->init (FALSE, opCount, firstOpDesc);
7734	else
7735	rc = serverProgress->init (mParent, aInitiator, progressDesc, FALSE,
7736	opCount, firstOpDesc);
7737	AssertComRCReturn (rc, rc);
7738	}
7739
7740	/* create a combined server-side progress object when necessary */
7741	ComObjPtr <CombinedProgress> combinedProgress;
7742	if (takingSnapshotOnline)
7743	{
7744	combinedProgress.createObject();
7745	rc = combinedProgress->init (mParent, aInitiator, progressDesc,
7746	serverProgress, aProgress);
7747	AssertComRCReturn (rc, rc);
7748	}
7749
7750	/* create a snapshot object */
7751	RTTIMESPEC time;
7752	ComObjPtr <Snapshot> snapshot;
7753	snapshot.createObject();
7754	rc = snapshot->init (snapshotId, aName, aDescription,
7755	RTTimeSpecGetMilli (RTTimeNow (&time)),
7756	snapshotMachine, mData->mCurrentSnapshot);
7757	AssertComRCReturn (rc, rc);
7758
7759	/*
7760	* create and start the task on a separate thread
7761	* (note that it will not start working until we release alock)
7762	*/
7763	TakeSnapshotTask *task = new TakeSnapshotTask (this);
7764	int vrc = RTThreadCreate (NULL, taskHandler,
7765	(void *) task,
7766	0, RTTHREADTYPE_MAIN_WORKER, 0, "TakeSnapshot");
7767	if (VBOX_FAILURE (vrc))
7768	{
7769	snapshot->uninit();
7770	delete task;
7771	ComAssertFailedRet (E_FAIL);
7772	}
7773
7774	/* fill in the snapshot data */
7775	mSnapshotData.mLastState = mData->mMachineState;
7776	mSnapshotData.mSnapshot = snapshot;
7777	mSnapshotData.mServerProgress = serverProgress;
7778	mSnapshotData.mCombinedProgress = combinedProgress;
7779
7780	/* set the state to Saving (this is expected by Console::TakeSnapshot()) */
7781	setMachineState (MachineState_Saving);
7782
7783	if (takingSnapshotOnline)
7784	stateFilePath.cloneTo (aStateFilePath);
7785	else
7786	*aStateFilePath = NULL;
7787
7788	serverProgress.queryInterfaceTo (aServerProgress);
7789
7790	LogFlowThisFuncLeave();
7791	return S_OK;
7792	}
7793
7794	/**
7795	* @note Locks mParent + this objects for writing.
7796	*/
7797	STDMETHODIMP SessionMachine::EndTakingSnapshot (BOOL aSuccess)
7798	{
7799	LogFlowThisFunc (("\n"));
7800
7801	AutoCaller autoCaller (this);
7802	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7803
7804	/* Lock mParent because of endTakingSnapshot() */
7805	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7806
7807	AssertReturn (!aSuccess \|\|
7808	(mData->mMachineState == MachineState_Saving &&
7809	mSnapshotData.mLastState != MachineState_InvalidMachineState &&
7810	!mSnapshotData.mSnapshot.isNull() &&
7811	!mSnapshotData.mServerProgress.isNull() &&
7812	!mSnapshotData.mCombinedProgress.isNull()),
7813	E_FAIL);
7814
7815	/*
7816	* set the state to the state we had when BeginTakingSnapshot() was called
7817	* (this is expected by Console::TakeSnapshot() and
7818	* Console::saveStateThread())
7819	*/
7820	setMachineState (mSnapshotData.mLastState);
7821
7822	return endTakingSnapshot (aSuccess);
7823	}
7824
7825	/**
7826	* @note Locks mParent + this + children objects for writing!
7827	*/
7828	STDMETHODIMP SessionMachine::DiscardSnapshot (
7829	IConsole *aInitiator, INPTR GUIDPARAM aId,
7830	MachineState_T aMachineState, IProgress *aProgress)
7831	{
7832	LogFlowThisFunc (("\n"));
7833
7834	Guid id = aId;
7835	AssertReturn (aInitiator && !id.isEmpty(), E_INVALIDARG);
7836	AssertReturn (aMachineState && aProgress, E_POINTER);
7837
7838	AutoCaller autoCaller (this);
7839	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7840
7841	/* Progress::init() needs mParent lock */
7842	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7843
7844	ComAssertRet (mData->mMachineState < MachineState_Running, E_FAIL);
7845
7846	ComObjPtr <Snapshot> snapshot;
7847	HRESULT rc = findSnapshot (id, snapshot, true /* aSetError */);
7848	CheckComRCReturnRC (rc);
7849
7850	AutoLock snapshotLock (snapshot);
7851	if (snapshot == mData->mFirstSnapshot)
7852	{
7853	AutoLock chLock (mData->mFirstSnapshot->childrenLock());
7854	size_t childrenCount = mData->mFirstSnapshot->children().size();
7855	if (childrenCount > 1)
7856	return setError (E_FAIL,
7857	tr ("Cannot discard the snapshot '%ls' because it is the first "
7858	"snapshot of the machine '%ls' and it has more than one "
7859	"child snapshot (%d)"),
7860	snapshot->data().mName.raw(), mUserData->mName.raw(),
7861	childrenCount);
7862	}
7863
7864	/*
7865	* If the snapshot being discarded is the current one, ensure current
7866	* settings are committed and saved.
7867	*/
7868	if (snapshot == mData->mCurrentSnapshot)
7869	{
7870	if (isModified())
7871	{
7872	rc = saveSettings();
7873	CheckComRCReturnRC (rc);
7874	}
7875	}
7876
7877	/*
7878	* create a progress object. The number of operations is:
7879	* 1 (preparing) + # of VDIs
7880	*/
7881	ComObjPtr <Progress> progress;
7882	progress.createObject();
7883	rc = progress->init (mParent, aInitiator,
7884	Bstr (Utf8StrFmt (tr ("Discarding snapshot '%ls'"),
7885	snapshot->data().mName.raw())),
7886	FALSE /* aCancelable */,
7887	1 + snapshot->data().mMachine->mHDData->mHDAttachments.size(),
7888	Bstr (tr ("Preparing to discard snapshot")));
7889	AssertComRCReturn (rc, rc);
7890
7891	/* create and start the task on a separate thread */
7892	DiscardSnapshotTask *task = new DiscardSnapshotTask (this, progress, snapshot);
7893	int vrc = RTThreadCreate (NULL, taskHandler,
7894	(void *) task,
7895	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardSnapshot");
7896	if (VBOX_FAILURE (vrc))
7897	delete task;
7898	ComAssertRCRet (vrc, E_FAIL);
7899
7900	/* set the proper machine state (note: after creating a Task instance) */
7901	setMachineState (MachineState_Discarding);
7902
7903	/* return the progress to the caller */
7904	progress.queryInterfaceTo (aProgress);
7905
7906	/* return the new state to the caller */
7907	*aMachineState = mData->mMachineState;
7908
7909	return S_OK;
7910	}
7911
7912	/**
7913	* @note Locks mParent + this + children objects for writing!
7914	*/
7915	STDMETHODIMP SessionMachine::DiscardCurrentState (
7916	IConsole aInitiator, MachineState_T aMachineState, IProgress **aProgress)
7917	{
7918	LogFlowThisFunc (("\n"));
7919
7920	AssertReturn (aInitiator, E_INVALIDARG);
7921	AssertReturn (aMachineState && aProgress, E_POINTER);
7922
7923	AutoCaller autoCaller (this);
7924	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7925
7926	/* Progress::init() needs mParent lock */
7927	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7928
7929	ComAssertRet (mData->mMachineState < MachineState_Running, E_FAIL);
7930
7931	if (mData->mCurrentSnapshot.isNull())
7932	return setError (E_FAIL,
7933	tr ("Could not discard the current state of the machine '%ls' "
7934	"because it doesn't have any snapshots"),
7935	mUserData->mName.raw());
7936
7937	/*
7938	* create a progress object. The number of operations is:
7939	* 1 (preparing) + # of VDIs + 1 (if we need to copy the saved state file)
7940	*/
7941	ComObjPtr <Progress> progress;
7942	progress.createObject();
7943	{
7944	ULONG opCount = 1 + mData->mCurrentSnapshot->data()
7945	.mMachine->mHDData->mHDAttachments.size();
7946	if (mData->mCurrentSnapshot->stateFilePath())
7947	++ opCount;
7948	progress->init (mParent, aInitiator,
7949	Bstr (tr ("Discarding current machine state")),
7950	FALSE /* aCancelable */, opCount,
7951	Bstr (tr ("Preparing to discard current state")));
7952	}
7953
7954	/* create and start the task on a separate thread */
7955	DiscardCurrentStateTask *task =
7956	new DiscardCurrentStateTask (this, progress, false /* discardCurSnapshot */);
7957	int vrc = RTThreadCreate (NULL, taskHandler,
7958	(void *) task,
7959	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardCurState");
7960	if (VBOX_FAILURE (vrc))
7961	delete task;
7962	ComAssertRCRet (vrc, E_FAIL);
7963
7964	/* set the proper machine state (note: after creating a Task instance) */
7965	setMachineState (MachineState_Discarding);
7966
7967	/* return the progress to the caller */
7968	progress.queryInterfaceTo (aProgress);
7969
7970	/* return the new state to the caller */
7971	*aMachineState = mData->mMachineState;
7972
7973	return S_OK;
7974	}
7975
7976	/**
7977	* @note Locks mParent + other objects for writing!
7978	*/
7979	STDMETHODIMP SessionMachine::DiscardCurrentSnapshotAndState (
7980	IConsole aInitiator, MachineState_T aMachineState, IProgress **aProgress)
7981	{
7982	LogFlowThisFunc (("\n"));
7983
7984	AssertReturn (aInitiator, E_INVALIDARG);
7985	AssertReturn (aMachineState && aProgress, E_POINTER);
7986
7987	AutoCaller autoCaller (this);
7988	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
7989
7990	/* Progress::init() needs mParent lock */
7991	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
7992
7993	ComAssertRet (mData->mMachineState < MachineState_Running, E_FAIL);
7994
7995	if (mData->mCurrentSnapshot.isNull())
7996	return setError (E_FAIL,
7997	tr ("Could not discard the current state of the machine '%ls' "
7998	"because it doesn't have any snapshots"),
7999	mUserData->mName.raw());
8000
8001	/*
8002	* create a progress object. The number of operations is:
8003	* 1 (preparing) + # of VDIs in the current snapshot +
8004	* # of VDIs in the previous snapshot +
8005	* 1 (if we need to copy the saved state file of the previous snapshot)
8006	* or (if there is no previous snapshot):
8007	* 1 (preparing) + # of VDIs in the current snapshot * 2 +
8008	* 1 (if we need to copy the saved state file of the current snapshot)
8009	*/
8010	ComObjPtr <Progress> progress;
8011	progress.createObject();
8012	{
8013	ComObjPtr <Snapshot> curSnapshot = mData->mCurrentSnapshot;
8014	ComObjPtr <Snapshot> prevSnapshot = mData->mCurrentSnapshot->parent();
8015
8016	ULONG opCount = 1;
8017	if (prevSnapshot)
8018	{
8019	opCount += curSnapshot->data().mMachine->mHDData->mHDAttachments.size();
8020	opCount += prevSnapshot->data().mMachine->mHDData->mHDAttachments.size();
8021	if (prevSnapshot->stateFilePath())
8022	++ opCount;
8023	}
8024	else
8025	{
8026	opCount += curSnapshot->data().mMachine->mHDData->mHDAttachments.size() * 2;
8027	if (curSnapshot->stateFilePath())
8028	++ opCount;
8029	}
8030
8031	progress->init (mParent, aInitiator,
8032	Bstr (tr ("Discarding current machine snapshot and state")),
8033	FALSE /* aCancelable */, opCount,
8034	Bstr (tr ("Preparing to discard current snapshot and state")));
8035	}
8036
8037	/* create and start the task on a separate thread */
8038	DiscardCurrentStateTask *task =
8039	new DiscardCurrentStateTask (this, progress, true /* discardCurSnapshot */);
8040	int vrc = RTThreadCreate (NULL, taskHandler,
8041	(void *) task,
8042	0, RTTHREADTYPE_MAIN_WORKER, 0, "DiscardCurState");
8043	if (VBOX_FAILURE (vrc))
8044	delete task;
8045	ComAssertRCRet (vrc, E_FAIL);
8046
8047	/* set the proper machine state (note: after creating a Task instance) */
8048	setMachineState (MachineState_Discarding);
8049
8050	/* return the progress to the caller */
8051	progress.queryInterfaceTo (aProgress);
8052
8053	/* return the new state to the caller */
8054	*aMachineState = mData->mMachineState;
8055
8056	return S_OK;
8057	}
8058
8059	// public methods only for internal purposes
8060	/////////////////////////////////////////////////////////////////////////////
8061
8062	/**
8063	* Called from the client watcher thread to check for unexpected client
8064	* process death.
8065	*
8066	* @note On Win32, this method is called only when we've got the semaphore
8067	* (i.e. it has been signaled when we were waiting for it).
8068	*
8069	* On Win32, this method always returns true.
8070	*
8071	* On Linux, the method returns true if the client process has terminated
8072	* abnormally (and/or the session has been uninitialized) and false if it is
8073	* still alive.
8074	*
8075	* @note Locks this object for writing.
8076	*/
8077	bool SessionMachine::checkForDeath()
8078	{
8079	Uninit::Reason reason;
8080	bool doUninit = false;
8081	bool rc = false;
8082
8083	/*
8084	* Enclose autoCaller with a block because calling uninit()
8085	* from under it will deadlock.
8086	*/
8087	{
8088	AutoCaller autoCaller (this);
8089	if (!autoCaller.isOk())
8090	{
8091	/*
8092	* return true if not ready, to cause the client watcher to exclude
8093	* the corresponding session from watching
8094	*/
8095	LogFlowThisFunc (("Already uninitialized!"));
8096	return true;
8097	}
8098
8099	AutoLock alock (this);
8100
8101	/*
8102	* Determine the reason of death: if the session state is Closing here,
8103	* everything is fine. Otherwise it means that the client did not call
8104	* OnSessionEnd() before it released the IPC semaphore.
8105	* This may happen either because the client process has abnormally
8106	* terminated, or because it simply forgot to call ISession::Close()
8107	* before exiting. We threat the latter also as an abnormal termination
8108	* (see Session::uninit() for details).
8109	*/
8110	reason = mData->mSession.mState == SessionState_SessionClosing ?
8111	Uninit::Normal :
8112	Uninit::Abnormal;
8113
8114	#if defined(__WIN__)
8115
8116	AssertMsg (mIPCSem, ("semaphore must be created"));
8117
8118	if (reason == Uninit::Abnormal)
8119	{
8120	LogWarningThisFunc (("ABNORMAL client termination! (wasRunning=%d)\n",
8121	mData->mMachineState >= MachineState_Running));
8122
8123	/* reset the state to Aborted */
8124	if (mData->mMachineState != MachineState_Aborted)
8125	setMachineState (MachineState_Aborted);
8126	}
8127
8128	/* release the IPC mutex */
8129	::ReleaseMutex (mIPCSem);
8130
8131	doUninit = true;
8132
8133	rc = true;
8134
8135	#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
8136
8137	AssertMsg (mIPCSem >= 0, ("semaphore must be created"));
8138
8139	int val = ::semctl (mIPCSem, 0, GETVAL);
8140	if (val > 0)
8141	{
8142	/* the semaphore is signaled, meaning the session is terminated */
8143
8144	if (reason == Uninit::Abnormal)
8145	{
8146	LogWarningThisFunc (("ABNORMAL client termination! (wasRunning=%d)\n",
8147	mData->mMachineState >= MachineState_Running));
8148
8149	/* reset the state to Aborted */
8150	if (mData->mMachineState != MachineState_Aborted)
8151	setMachineState (MachineState_Aborted);
8152	}
8153
8154	doUninit = true;
8155	}
8156
8157	rc = val > 0;
8158
8159	#endif
8160
8161	} /* AutoCaller block */
8162
8163	if (doUninit)
8164	uninit (reason);
8165
8166	return rc;
8167	}
8168
8169	/**
8170	* @note Locks this object for reading.
8171	*/
8172	HRESULT SessionMachine::onDVDDriveChange()
8173	{
8174	LogFlowThisFunc (("\n"));
8175
8176	AutoCaller autoCaller (this);
8177	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8178
8179	ComPtr <IInternalSessionControl> directControl;
8180	{
8181	AutoReaderLock alock (this);
8182	directControl = mData->mSession.mDirectControl;
8183	}
8184
8185	/* ignore notifications sent after #OnSessionEnd() is called */
8186	if (!directControl)
8187	return S_OK;
8188
8189	return directControl->OnDVDDriveChange();
8190	}
8191
8192	/**
8193	* @note Locks this object for reading.
8194	*/
8195	HRESULT SessionMachine::onFloppyDriveChange()
8196	{
8197	LogFlowThisFunc (("\n"));
8198
8199	AutoCaller autoCaller (this);
8200	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8201
8202	ComPtr <IInternalSessionControl> directControl;
8203	{
8204	AutoReaderLock alock (this);
8205	directControl = mData->mSession.mDirectControl;
8206	}
8207
8208	/* ignore notifications sent after #OnSessionEnd() is called */
8209	if (!directControl)
8210	return S_OK;
8211
8212	return directControl->OnFloppyDriveChange();
8213	}
8214
8215	/**
8216	* @note Locks this object for reading.
8217	*/
8218	HRESULT SessionMachine::onNetworkAdapterChange(INetworkAdapter *networkAdapter)
8219	{
8220	LogFlowThisFunc (("\n"));
8221
8222	AutoCaller autoCaller (this);
8223	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8224
8225	ComPtr <IInternalSessionControl> directControl;
8226	{
8227	AutoReaderLock alock (this);
8228	directControl = mData->mSession.mDirectControl;
8229	}
8230
8231	/* ignore notifications sent after #OnSessionEnd() is called */
8232	if (!directControl)
8233	return S_OK;
8234
8235	return directControl->OnNetworkAdapterChange(networkAdapter);
8236	}
8237
8238	/**
8239	* @note Locks this object for reading.
8240	*/
8241	HRESULT SessionMachine::onVRDPServerChange()
8242	{
8243	LogFlowThisFunc (("\n"));
8244
8245	AutoCaller autoCaller (this);
8246	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8247
8248	ComPtr <IInternalSessionControl> directControl;
8249	{
8250	AutoReaderLock alock (this);
8251	directControl = mData->mSession.mDirectControl;
8252	}
8253
8254	/* ignore notifications sent after #OnSessionEnd() is called */
8255	if (!directControl)
8256	return S_OK;
8257
8258	return directControl->OnVRDPServerChange();
8259	}
8260
8261	/**
8262	* @note Locks this object for reading.
8263	*/
8264	HRESULT SessionMachine::onUSBControllerChange()
8265	{
8266	LogFlowThisFunc (("\n"));
8267
8268	AutoCaller autoCaller (this);
8269	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8270
8271	ComPtr <IInternalSessionControl> directControl;
8272	{
8273	AutoReaderLock alock (this);
8274	directControl = mData->mSession.mDirectControl;
8275	}
8276
8277	/* ignore notifications sent after #OnSessionEnd() is called */
8278	if (!directControl)
8279	return S_OK;
8280
8281	return directControl->OnUSBControllerChange();
8282	}
8283
8284	/**
8285	* @note Locks this object for reading.
8286	*/
8287	HRESULT SessionMachine::onUSBDeviceAttach (IUSBDevice *aDevice)
8288	{
8289	LogFlowThisFunc (("\n"));
8290
8291	AutoCaller autoCaller (this);
8292	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8293
8294	ComPtr <IInternalSessionControl> directControl;
8295	{
8296	AutoReaderLock alock (this);
8297	directControl = mData->mSession.mDirectControl;
8298	}
8299
8300	/* ignore notifications sent after #OnSessionEnd() is called */
8301	if (!directControl)
8302	return S_OK;
8303
8304	return directControl->OnUSBDeviceAttach (aDevice);
8305	}
8306
8307	/**
8308	* @note Locks this object for reading.
8309	*/
8310	HRESULT SessionMachine::onUSBDeviceDetach (INPTR GUIDPARAM aId)
8311	{
8312	LogFlowThisFunc (("\n"));
8313
8314	AutoCaller autoCaller (this);
8315	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8316
8317	ComPtr <IInternalSessionControl> directControl;
8318	{
8319	AutoReaderLock alock (this);
8320	directControl = mData->mSession.mDirectControl;
8321	}
8322
8323	/* ignore notifications sent after #OnSessionEnd() is called */
8324	if (!directControl)
8325	return S_OK;
8326
8327	return directControl->OnUSBDeviceDetach (aId);
8328	}
8329
8330	// protected methods
8331	/////////////////////////////////////////////////////////////////////////////
8332
8333	/**
8334	* Helper method to finalize saving the state.
8335	*
8336	* @note Must be called from under this object's lock.
8337	*
8338	* @param aSuccess TRUE if the snapshot has been taken successfully
8339	*
8340	* @note Locks mParent + this objects for writing.
8341	*/
8342	HRESULT SessionMachine::endSavingState (BOOL aSuccess)
8343	{
8344	LogFlowThisFuncEnter();
8345
8346	AutoCaller autoCaller (this);
8347	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8348
8349	/* mParent->removeProgress() needs mParent lock */
8350	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
8351
8352	HRESULT rc = S_OK;
8353
8354	if (aSuccess)
8355	{
8356	mSSData->mStateFilePath = mSnapshotData.mStateFilePath;
8357
8358	/* save all VM settings */
8359	rc = saveSettings();
8360	}
8361	else
8362	{
8363	/* delete the saved state file (it might have been already created) */
8364	RTFileDelete (Utf8Str (mSnapshotData.mStateFilePath));
8365	}
8366
8367	/* remove the completed progress object */
8368	mParent->removeProgress (mSnapshotData.mProgressId);
8369
8370	/* clear out the temporary saved state data */
8371	mSnapshotData.mLastState = MachineState_InvalidMachineState;
8372	mSnapshotData.mProgressId.clear();
8373	mSnapshotData.mStateFilePath.setNull();
8374
8375	LogFlowThisFuncLeave();
8376	return rc;
8377	}
8378
8379	/**
8380	* Helper method to finalize taking a snapshot.
8381	* Gets called only from #EndTakingSnapshot() that is expected to
8382	* be called by the VM process when it finishes all the tasks related to
8383	* taking a snapshot, either scucessfully or unsuccessfilly.
8384	*
8385	* @param aSuccess TRUE if the snapshot has been taken successfully
8386	*
8387	* @note Locks mParent + this objects for writing.
8388	*/
8389	HRESULT SessionMachine::endTakingSnapshot (BOOL aSuccess)
8390	{
8391	LogFlowThisFuncEnter();
8392
8393	AutoCaller autoCaller (this);
8394	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
8395
8396	/* Progress object uninitialization needs mParent lock */
8397	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
8398
8399	HRESULT rc = S_OK;
8400
8401	if (aSuccess)
8402	{
8403	/* the server progress must be completed on success */
8404	Assert (mSnapshotData.mServerProgress->completed());
8405
8406	mData->mCurrentSnapshot = mSnapshotData.mSnapshot;
8407	/* memorize the first snapshot if necessary */
8408	if (!mData->mFirstSnapshot)
8409	mData->mFirstSnapshot = mData->mCurrentSnapshot;
8410
8411	int opFlags = SaveSS_AddOp \| SaveSS_UpdateCurrentId;
8412	if (mSnapshotData.mLastState != MachineState_Paused && !isModified())
8413	{
8414	/*
8415	* the machine was powered off or saved when taking a snapshot,
8416	* so reset the mCurrentStateModified flag
8417	*/
8418	mData->mCurrentStateModified = FALSE;
8419	opFlags \|= SaveSS_UpdateCurStateModified;
8420	}
8421
8422	rc = saveSnapshotSettings (mSnapshotData.mSnapshot, opFlags);
8423	}
8424
8425	if (!aSuccess \|\| FAILED (rc))
8426	{
8427	if (mSnapshotData.mSnapshot)
8428	{
8429	/* wait for the completion of the server progress (diff VDI creation) */
8430	/// @todo (dmik) later, we will definitely want to cancel it instead
8431	// (when the cancel function is implemented)
8432	mSnapshotData.mServerProgress->WaitForCompletion (-1);
8433
8434	/*
8435	* delete all differencing VDIs created
8436	* (this will attach their parents back)
8437	*/
8438	rc = deleteSnapshotDiffs (mSnapshotData.mSnapshot);
8439	/* continue cleanup on error */
8440
8441	/* delete the saved state file (it might have been already created) */
8442	if (mSnapshotData.mSnapshot->stateFilePath())
8443	RTFileDelete (Utf8Str (mSnapshotData.mSnapshot->stateFilePath()));
8444
8445	mSnapshotData.mSnapshot->uninit();
8446	}
8447	}
8448
8449	/* inform callbacks */
8450	if (aSuccess && SUCCEEDED (rc))
8451	mParent->onSnapshotTaken (mData->mUuid, mSnapshotData.mSnapshot->data().mId);
8452
8453	/* clear out the snapshot data */
8454	mSnapshotData.mLastState = MachineState_InvalidMachineState;
8455	mSnapshotData.mSnapshot.setNull();
8456	mSnapshotData.mServerProgress.setNull();
8457	/* uninitialize the combined progress (to remove it from the VBox collection) */
8458	if (!mSnapshotData.mCombinedProgress.isNull())
8459	{
8460	mSnapshotData.mCombinedProgress->uninit();
8461	mSnapshotData.mCombinedProgress.setNull();
8462	}
8463
8464	LogFlowThisFuncLeave();
8465	return rc;
8466	}
8467
8468	/**
8469	* Take snapshot task handler.
8470	* Must be called only by TakeSnapshotTask::handler()!
8471	*
8472	* The sole purpose of this task is to asynchronously create differencing VDIs
8473	* and copy the saved state file (when necessary). The VM process will wait
8474	* for this task to complete using the mSnapshotData.mServerProgress
8475	* returned to it.
8476	*
8477	* @note Locks mParent + this objects for writing.
8478	*/
8479	void SessionMachine::takeSnapshotHandler (TakeSnapshotTask &aTask)
8480	{
8481	LogFlowThisFuncEnter();
8482
8483	AutoCaller autoCaller (this);
8484
8485	LogFlowThisFunc (("state=%d\n", autoCaller.state()));
8486	if (!autoCaller.isOk())
8487	{
8488	/*
8489	* we might have been uninitialized because the session was
8490	* accidentally closed by the client, so don't assert
8491	*/
8492	LogFlowThisFuncLeave();
8493	return;
8494	}
8495
8496	/* endTakingSnapshot() needs mParent lock */
8497	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
8498
8499	HRESULT rc = S_OK;
8500
8501	LogFlowThisFunc (("Creating differencing VDIs...\n"));
8502
8503	/* create new differencing hard disks and attach them to this machine */
8504	rc = createSnapshotDiffs (&mSnapshotData.mSnapshot->data().mId,
8505	mUserData->mSnapshotFolderFull,
8506	mSnapshotData.mServerProgress,
8507	true /* aOnline */);
8508
8509	if (SUCCEEDED (rc) && mSnapshotData.mLastState == MachineState_Saved)
8510	{
8511	Utf8Str stateFrom = mSSData->mStateFilePath;
8512	Utf8Str stateTo = mSnapshotData.mSnapshot->stateFilePath();
8513
8514	LogFlowThisFunc (("Copying the execution state from '%s' to '%s'...\n",
8515	stateFrom.raw(), stateTo.raw()));
8516
8517	mSnapshotData.mServerProgress->advanceOperation (
8518	Bstr (tr ("Copying the execution state")));
8519
8520	/*
8521	* We can safely leave the lock here:
8522	* mMachineState is MachineState_Saving here
8523	*/
8524	alock.leave();
8525
8526	/* copy the state file */
8527	int vrc = RTFileCopyEx (stateFrom, stateTo, progressCallback,
8528	static_cast <Progress *> (mSnapshotData.mServerProgress));
8529
8530	alock.enter();
8531
8532	if (VBOX_FAILURE (vrc))
8533	rc = setError (E_FAIL,
8534	tr ("Could not copy the state file '%ls' to '%ls' (%Vrc)"),
8535	stateFrom.raw(), stateTo.raw());
8536	}
8537
8538	/*
8539	* we have to call endTakingSnapshot() here if the snapshot was taken
8540	* offline, because the VM process will not do it in this case
8541	*/
8542	if (mSnapshotData.mLastState != MachineState_Paused)
8543	{
8544	LogFlowThisFunc (("Finalizing the taken snapshot (rc=%08X)...\n", rc));
8545
8546	setMachineState (mSnapshotData.mLastState);
8547	updateMachineStateOnClient();
8548
8549	/* finalize the progress after setting the state, for consistency */
8550	mSnapshotData.mServerProgress->notifyComplete (rc);
8551
8552	endTakingSnapshot (SUCCEEDED (rc));
8553	}
8554	else
8555	{
8556	mSnapshotData.mServerProgress->notifyComplete (rc);
8557	}
8558
8559	LogFlowThisFuncLeave();
8560	}
8561
8562	/**
8563	* Discard snapshot task handler.
8564	* Must be called only by DiscardSnapshotTask::handler()!
8565	*
8566	* When aTask.subTask is true, the associated progress object is left
8567	* uncompleted on success. On failure, the progress is marked as completed
8568	* regardless of this parameter.
8569	*
8570	* @note Locks mParent + this + child objects for writing!
8571	*/
8572	void SessionMachine::discardSnapshotHandler (DiscardSnapshotTask &aTask)
8573	{
8574	LogFlowThisFuncEnter();
8575
8576	AutoCaller autoCaller (this);
8577
8578	LogFlowThisFunc (("state=%d\n", autoCaller.state()));
8579	if (!autoCaller.isOk())
8580	{
8581	/*
8582	* we might have been uninitialized because the session was
8583	* accidentally closed by the client, so don't assert
8584	*/
8585	aTask.progress->notifyComplete (
8586	E_FAIL, COM_IIDOF (IMachine), getComponentName(),
8587	tr ("The session has been accidentally closed"));
8588
8589	LogFlowThisFuncLeave();
8590	return;
8591	}
8592
8593	ComObjPtr <SnapshotMachine> sm = aTask.snapshot->data().mMachine;
8594
8595	/* mParent is locked because of Progress::notifyComplete(), etc. */
8596	AutoMultiLock <3> alock (mParent->wlock(), this->wlock(), sm->rlock());
8597
8598	/* Safe locking in the direction parent->child */
8599	AutoLock snapshotLock (aTask.snapshot);
8600	AutoLock snapshotChildrenLock (aTask.snapshot->childrenLock());
8601
8602	HRESULT rc = S_OK;
8603
8604	/* save the snapshot ID (for callbacks) */
8605	Guid snapshotId = aTask.snapshot->data().mId;
8606
8607	do
8608	{
8609	/* first pass: */
8610	LogFlowThisFunc (("Check hard disk accessibility and affected machines...\n"));
8611
8612	HDData::HDAttachmentList::const_iterator it;
8613	for (it = sm->mHDData->mHDAttachments.begin();
8614	it != sm->mHDData->mHDAttachments.end();
8615	++ it)
8616	{
8617	ComObjPtr <HardDiskAttachment> hda = *it;
8618	ComObjPtr <HardDisk> hd = hda->hardDisk();
8619	ComObjPtr <HardDisk> parent = hd->parent();
8620
8621	AutoLock hdLock (hd);
8622
8623	if (hd->hasForeignChildren())
8624	{
8625	rc = setError (E_FAIL,
8626	tr ("One or more hard disks belonging to other machines are "
8627	"based on the hard disk '%ls' stored in the snapshot '%ls'"),
8628	hd->toString().raw(), aTask.snapshot->data().mName.raw());
8629	break;
8630	}
8631
8632	if (hd->type() == HardDiskType_NormalHardDisk)
8633	{
8634	AutoLock hdChildrenLock (hd->childrenLock());
8635	size_t childrenCount = hd->children().size();
8636	if (childrenCount > 1)
8637	{
8638	rc = setError (E_FAIL,
8639	tr ("Normal hard disk '%ls' stored in the snapshot '%ls' "
8640	"has more than one child hard disk (%d)"),
8641	hd->toString().raw(), aTask.snapshot->data().mName.raw(),
8642	childrenCount);
8643	break;
8644	}
8645	}
8646	else
8647	{
8648	ComAssertMsgFailedBreak (("Invalid hard disk type %d\n", hd->type()),
8649	rc = E_FAIL);
8650	}
8651
8652	Bstr accessError;
8653	rc = hd->getAccessibleWithChildren (accessError);
8654	CheckComRCBreakRC (rc);
8655
8656	if (!accessError.isNull())
8657	{
8658	rc = setError (E_FAIL,
8659	tr ("Hard disk '%ls' stored in the snapshot '%ls' is not "
8660	"accessible (%ls)"),
8661	hd->toString().raw(), aTask.snapshot->data().mName.raw(),
8662	accessError.raw());
8663	break;
8664	}
8665
8666	rc = hd->setBusyWithChildren();
8667	if (FAILED (rc))
8668	{
8669	/* reset the busy flag of all previous hard disks */
8670	while (it != sm->mHDData->mHDAttachments.begin())
8671	(*(-- it))->hardDisk()->clearBusyWithChildren();
8672	break;
8673	}
8674	}
8675
8676	CheckComRCBreakRC (rc);
8677
8678	/* second pass: */
8679	LogFlowThisFunc (("Performing actual vdi merging...\n"));
8680
8681	for (it = sm->mHDData->mHDAttachments.begin();
8682	it != sm->mHDData->mHDAttachments.end();
8683	++ it)
8684	{
8685	ComObjPtr <HardDiskAttachment> hda = *it;
8686	ComObjPtr <HardDisk> hd = hda->hardDisk();
8687	ComObjPtr <HardDisk> parent = hd->parent();
8688
8689	AutoLock hdLock (hd);
8690
8691	Bstr hdRootString = hd->root()->toString (true /* aShort */);
8692
8693	if (parent)
8694	{
8695	if (hd->isParentImmutable())
8696	{
8697	aTask.progress->advanceOperation (Bstr (Utf8StrFmt (
8698	tr ("Discarding changes to immutable hard disk '%ls'"),
8699	hdRootString.raw())));
8700
8701	/* clear the busy flag before unregistering */
8702	hd->clearBusy();
8703
8704	/*
8705	* unregisterDiffHardDisk() is supposed to delete and uninit
8706	* the differencing hard disk
8707	*/
8708	rc = mParent->unregisterDiffHardDisk (hd);
8709	CheckComRCBreakRC (rc);
8710	continue;
8711	}
8712	else
8713	{
8714	/*
8715	* differencing VDI:
8716	* merge this image to all its children
8717	*/
8718
8719	aTask.progress->advanceOperation (Bstr (Utf8StrFmt (
8720	tr ("Merging changes to normal hard disk '%ls' to children"),
8721	hdRootString.raw())));
8722
8723	snapshotChildrenLock.unlock();
8724	snapshotLock.unlock();
8725	alock.leave();
8726
8727	rc = hd->asVDI()->mergeImageToChildren (aTask.progress);
8728
8729	alock.enter();
8730	snapshotLock.lock();
8731	snapshotChildrenLock.lock();
8732
8733	// debug code
8734	// if (it != sm->mHDData->mHDAttachments.begin())
8735	// {
8736	// rc = setError (E_FAIL, "Simulated failure");
8737	// break;
8738	//}
8739
8740	if (SUCCEEDED (rc))
8741	rc = mParent->unregisterDiffHardDisk (hd);
8742	else
8743	hd->clearBusyWithChildren();
8744
8745	CheckComRCBreakRC (rc);
8746	}
8747	}
8748	else if (hd->type() == HardDiskType_NormalHardDisk)
8749	{
8750	/*
8751	* normal vdi has the only child or none
8752	* (checked in the first pass)
8753	*/
8754
8755	ComObjPtr <HardDisk> child;
8756	{
8757	AutoLock hdChildrenLock (hd->childrenLock());
8758	if (hd->children().size())
8759	child = hd->children().front();
8760	}
8761
8762	if (child.isNull())
8763	{
8764	aTask.progress->advanceOperation (Bstr (Utf8StrFmt (
8765	tr ("Detaching normal hard disk '%ls'"),
8766	hdRootString.raw())));
8767
8768	/* just deassociate the normal image from this machine */
8769	hd->setMachineId (Guid());
8770	hd->setSnapshotId (Guid());
8771
8772	/* clear the busy flag */
8773	hd->clearBusy();
8774	}
8775	else
8776	{
8777	AutoLock childLock (child);
8778
8779	aTask.progress->advanceOperation (Bstr (Utf8StrFmt (
8780	tr ("Preserving changes to normal hard disk '%ls'"),
8781	hdRootString.raw())));
8782
8783	ComObjPtr <Machine> cm;
8784	ComObjPtr <Snapshot> cs;
8785	ComObjPtr <HardDiskAttachment> childHda;
8786	rc = findHardDiskAttachment (child, &cm, &cs, &childHda);
8787	CheckComRCBreakRC (rc);
8788	/* must be the same machine (checked in the first pass) */
8789	ComAssertBreak (cm->mData->mUuid == mData->mUuid, rc = E_FAIL);
8790
8791	/* merge the child to this basic image */
8792
8793	snapshotChildrenLock.unlock();
8794	snapshotLock.unlock();
8795	alock.leave();
8796
8797	rc = child->asVDI()->mergeImageToParent (aTask.progress);
8798
8799	alock.enter();
8800	snapshotLock.lock();
8801	snapshotChildrenLock.lock();
8802
8803	if (SUCCEEDED (rc))
8804	rc = mParent->unregisterDiffHardDisk (child);
8805	else
8806	hd->clearBusyWithChildren();
8807
8808	CheckComRCBreakRC (rc);
8809
8810	/* reset the snapshot Id */
8811	hd->setSnapshotId (Guid());
8812
8813	/* replace the child image in the appropriate place */
8814	childHda->updateHardDisk (hd, FALSE /* aDirty */);
8815
8816	if (!cs)
8817	{
8818	aTask.settingsChanged = true;
8819	}
8820	else
8821	{
8822	rc = cm->saveSnapshotSettings (cs, SaveSS_UpdateAllOp);
8823	CheckComRCBreakRC (rc);
8824	}
8825	}
8826	}
8827	else
8828	{
8829	ComAssertMsgFailedBreak (("Invalid hard disk type %d\n", hd->type()),
8830	rc = E_FAIL);
8831	}
8832	}
8833
8834	/* fetch the current error info */
8835	ErrorInfo mergeEi;
8836	HRESULT mergeRc = rc;
8837
8838	if (FAILED (rc))
8839	{
8840	/* clear the busy flag on the rest of hard disks */
8841	for (++ it; it != sm->mHDData->mHDAttachments.end(); ++ it)
8842	(*it)->hardDisk()->clearBusyWithChildren();
8843	}
8844
8845	/*
8846	* we have to try to discard the snapshot even if merging failed
8847	* because some images might have been already merged (and deleted)
8848	*/
8849
8850	do
8851	{
8852	LogFlowThisFunc (("Discarding the snapshot (reparenting children)...\n"));
8853
8854	ComObjPtr <Snapshot> parentSnapshot = aTask.snapshot->parent();
8855
8856	/// @todo (dmik):
8857	// when we introduce clones later, discarding the snapshot
8858	// will affect the current and first snapshots of clones, if they are
8859	// direct children of this snapshot. So we will need to lock machines
8860	// associated with child snapshots as well and update mCurrentSnapshot
8861	// and/or mFirstSnapshot fields.
8862
8863	if (aTask.snapshot == mData->mCurrentSnapshot)
8864	{
8865	/* currently, the parent snapshot must refer to the same machine */
8866	ComAssertBreak (
8867	!parentSnapshot \|\|
8868	parentSnapshot->data().mMachine->mData->mUuid == mData->mUuid,
8869	rc = E_FAIL);
8870	mData->mCurrentSnapshot = parentSnapshot;
8871	/* mark the current state as modified */
8872	mData->mCurrentStateModified = TRUE;
8873	}
8874
8875	if (aTask.snapshot == mData->mFirstSnapshot)
8876	{
8877	/*
8878	* the first snapshot must have only one child when discarded,
8879	* or no children at all
8880	*/
8881	ComAssertBreak (aTask.snapshot->children().size() <= 1, rc = E_FAIL);
8882
8883	if (aTask.snapshot->children().size() == 1)
8884	{
8885	ComObjPtr <Snapshot> childSnapshot = aTask.snapshot->children().front();
8886	ComAssertBreak (
8887	childSnapshot->data().mMachine->mData->mUuid == mData->mUuid,
8888	rc = E_FAIL);
8889	mData->mFirstSnapshot = childSnapshot;
8890	}
8891	else
8892	mData->mFirstSnapshot.setNull();
8893	}
8894
8895	/// @todo (dmik)
8896	// if we implement some warning mechanism later, we'll have
8897	// to return a warning if the state file path cannot be deleted
8898	Bstr stateFilePath = aTask.snapshot->stateFilePath();
8899	if (stateFilePath)
8900	RTFileDelete (Utf8Str (stateFilePath));
8901
8902	aTask.snapshot->discard();
8903
8904	rc = saveSnapshotSettings (parentSnapshot,
8905	SaveSS_UpdateAllOp \| SaveSS_UpdateCurrentId);
8906	}
8907	while (0);
8908
8909	/* restore the merge error if any */
8910	if (FAILED (mergeRc))
8911	{
8912	rc = mergeRc;
8913	setError (mergeEi);
8914	}
8915	}
8916	while (0);
8917
8918	if (!aTask.subTask \|\| FAILED (rc))
8919	{
8920	if (!aTask.subTask)
8921	{
8922	/* save current error info */
8923	ErrorInfo ei;
8924
8925	/* restore the machine state */
8926	setMachineState (aTask.state);
8927	updateMachineStateOnClient();
8928
8929	/*
8930	* save settings anyway, since we've already changed the current
8931	* machine configuration
8932	*/
8933	if (aTask.settingsChanged)
8934	{
8935	saveSettings (true /* aMarkCurStateAsModified */,
8936	true /* aInformCallbacksAnyway */);
8937	}
8938
8939	/* restore current error info */
8940	setError (ei);
8941	}
8942
8943	/* set the result (this will try to fetch current error info on failure) */
8944	aTask.progress->notifyComplete (rc);
8945	}
8946
8947	if (SUCCEEDED (rc))
8948	mParent->onSnapshotDiscarded (mData->mUuid, snapshotId);
8949
8950	LogFlowThisFunc (("Done discarding snapshot (rc=%08X)\n", rc));
8951	LogFlowThisFuncLeave();
8952	}
8953
8954	/**
8955	* Discard current state task handler.
8956	* Must be called only by DiscardCurrentStateTask::handler()!
8957	*
8958	* @note Locks mParent + this object for writing.
8959	*/
8960	void SessionMachine::discardCurrentStateHandler (DiscardCurrentStateTask &aTask)
8961	{
8962	LogFlowThisFuncEnter();
8963
8964	AutoCaller autoCaller (this);
8965
8966	LogFlowThisFunc (("state=%d\n", autoCaller.state()));
8967	if (!autoCaller.isOk())
8968	{
8969	/*
8970	* we might have been uninitialized because the session was
8971	* accidentally closed by the client, so don't assert
8972	*/
8973	aTask.progress->notifyComplete (
8974	E_FAIL, COM_IIDOF (IMachine), getComponentName(),
8975	tr ("The session has been accidentally closed"));
8976
8977	LogFlowThisFuncLeave();
8978	return;
8979	}
8980
8981	/* mParent is locked because of Progress::notifyComplete(), etc. */
8982	AutoMultiLock <2> alock (mParent->wlock(), this->wlock());
8983
8984	/*
8985	* discard all current changes to mUserData (name, OSType etc.)
8986	* (note that the machine is powered off, so there is no need
8987	* to inform the direct session)
8988	*/
8989	if (isModified())
8990	rollback (false /* aNotify */);
8991
8992	HRESULT rc = S_OK;
8993
8994	bool errorInSubtask = false;
8995	bool stateRestored = false;
8996
8997	const bool isLastSnapshot = mData->mCurrentSnapshot->parent().isNull();
8998
8999	do
9000	{
9001	/*
9002	* discard the saved state file if the machine was Saved prior
9003	* to this operation
9004	*/
9005	if (aTask.state == MachineState_Saved)
9006	{
9007	Assert (!mSSData->mStateFilePath.isEmpty());
9008	RTFileDelete (Utf8Str (mSSData->mStateFilePath));
9009	mSSData->mStateFilePath.setNull();
9010	aTask.modifyLastState (MachineState_PoweredOff);
9011	rc = saveStateSettings (SaveSTS_StateFilePath);
9012	CheckComRCBreakRC (rc);
9013	}
9014
9015	if (aTask.discardCurrentSnapshot && !isLastSnapshot)
9016	{
9017	/*
9018	* the "discard current snapshot and state" task is in action,
9019	* the current snapshot is not the last one.
9020	* Discard the current snapshot first.
9021	*/
9022
9023	DiscardSnapshotTask subTask (aTask, mData->mCurrentSnapshot);
9024	subTask.subTask = true;
9025	discardSnapshotHandler (subTask);
9026	aTask.settingsChanged = subTask.settingsChanged;
9027	if (aTask.progress->completed())
9028	{
9029	/*
9030	* the progress can be completed by a subtask only if there was
9031	* a failure
9032	*/
9033	Assert (FAILED (aTask.progress->resultCode()));
9034	errorInSubtask = true;
9035	rc = aTask.progress->resultCode();
9036	break;
9037	}
9038	}
9039
9040	LONG64 snapshotTimeStamp = 0;
9041
9042	{
9043	ComObjPtr <Snapshot> curSnapshot = mData->mCurrentSnapshot;
9044	AutoLock snapshotLock (curSnapshot);
9045
9046	/* remember the timestamp of the snapshot we're restoring from */
9047	snapshotTimeStamp = curSnapshot->data().mTimeStamp;
9048
9049	/* copy all hardware data from the current snapshot */
9050	copyFrom (curSnapshot->data().mMachine);
9051
9052	LogFlowThisFunc (("Restoring VDIs from the snapshot...\n"));
9053
9054	/* restore the attachmends from the snapshot */
9055	mHDData.backup();
9056	mHDData->mHDAttachments =
9057	curSnapshot->data().mMachine->mHDData->mHDAttachments;
9058
9059	snapshotLock.unlock();
9060	alock.leave();
9061	rc = createSnapshotDiffs (NULL, mUserData->mSnapshotFolderFull,
9062	aTask.progress,
9063	false /* aOnline */);
9064	alock.enter();
9065	snapshotLock.lock();
9066
9067	if (FAILED (rc))
9068	{
9069	/* here we can still safely rollback, so do it */
9070	ErrorInfo ei;
9071	/* undo all changes */
9072	rollback (false /* aNotify */);
9073	setError (ei);
9074	break;
9075	}
9076
9077	/*
9078	* note: old VDIs will be deassociated/deleted on #commit() called
9079	* either from #saveSettings() or directly at the end
9080	*/
9081
9082	/* should not have a saved state file associated at this point */
9083	Assert (mSSData->mStateFilePath.isNull());
9084
9085	if (curSnapshot->stateFilePath())
9086	{
9087	Utf8Str snapStateFilePath = curSnapshot->stateFilePath();
9088
9089	Utf8Str stateFilePath = Utf8StrFmt ("%ls%c{%Vuuid}.sav",
9090	mUserData->mSnapshotFolderFull.raw(),
9091	RTPATH_DELIMITER, mData->mUuid.raw());
9092
9093	LogFlowThisFunc (("Copying saved state file from '%s' to '%s'...\n",
9094	snapStateFilePath.raw(), stateFilePath.raw()));
9095
9096	aTask.progress->advanceOperation (
9097	Bstr (tr ("Restoring the execution state")));
9098
9099	/* copy the state file */
9100	snapshotLock.unlock();
9101	alock.leave();
9102	int vrc = RTFileCopyEx (snapStateFilePath, stateFilePath,
9103	progressCallback, aTask.progress);
9104	alock.enter();
9105	snapshotLock.lock();
9106
9107	if (VBOX_SUCCESS (vrc))
9108	{
9109	mSSData->mStateFilePath = stateFilePath;
9110	}
9111	else
9112	{
9113	rc = setError (E_FAIL,
9114	tr ("Could not copy the state file '%s' to '%s' (%Vrc)"),
9115	snapStateFilePath.raw(), stateFilePath.raw(), vrc);
9116	break;
9117	}
9118	}
9119	}
9120
9121	bool informCallbacks = false;
9122
9123	if (aTask.discardCurrentSnapshot && isLastSnapshot)
9124	{
9125	/*
9126	* discard the current snapshot and state task is in action,
9127	* the current snapshot is the last one.
9128	* Discard the current snapshot after discarding the current state.
9129	*/
9130
9131	/* commit changes to fixup hard disks before discarding */
9132	rc = commit();
9133	if (SUCCEEDED (rc))
9134	{
9135	DiscardSnapshotTask subTask (aTask, mData->mCurrentSnapshot);
9136	subTask.subTask = true;
9137	discardSnapshotHandler (subTask);
9138	aTask.settingsChanged = subTask.settingsChanged;
9139	if (aTask.progress->completed())
9140	{
9141	/*
9142	* the progress can be completed by a subtask only if there
9143	* was a failure
9144	*/
9145	Assert (FAILED (aTask.progress->resultCode()));
9146	errorInSubtask = true;
9147	rc = aTask.progress->resultCode();
9148	}
9149	}
9150
9151	/*
9152	* we've committed already, so inform callbacks anyway to ensure
9153	* they don't miss some change
9154	*/
9155	informCallbacks = true;
9156	}
9157
9158	/*
9159	* we have already discarded the current state, so set the
9160	* execution state accordingly no matter of the discard snapshot result
9161	*/
9162	if (mSSData->mStateFilePath)
9163	setMachineState (MachineState_Saved);
9164	else
9165	setMachineState (MachineState_PoweredOff);
9166
9167	updateMachineStateOnClient();
9168	stateRestored = true;
9169
9170	if (errorInSubtask)
9171	break;
9172
9173	/* assign the timestamp from the snapshot */
9174	Assert (snapshotTimeStamp != 0);
9175	mData->mLastStateChange = snapshotTimeStamp;
9176
9177	/* mark the current state as not modified */
9178	mData->mCurrentStateModified = FALSE;
9179
9180	/* save all settings and commit */
9181	rc = saveSettings (false /* aMarkCurStateAsModified */,
9182	informCallbacks);
9183	aTask.settingsChanged = false;
9184	}
9185	while (0);
9186
9187	if (FAILED (rc))
9188	{
9189	ErrorInfo ei;
9190
9191	if (!stateRestored)
9192	{
9193	/* restore the machine state */
9194	setMachineState (aTask.state);
9195	updateMachineStateOnClient();
9196	}
9197
9198	/*
9199	* save all settings and commit if still modified (there is no way to
9200	* rollback properly). Note that isModified() will return true after
9201	* copyFrom(). Also save the settings if requested by the subtask.
9202	*/
9203	if (isModified() \|\| aTask.settingsChanged)
9204	{
9205	if (aTask.settingsChanged)
9206	saveSettings (true /* aMarkCurStateAsModified */,
9207	true /* aInformCallbacksAnyway */);
9208	else
9209	saveSettings();
9210	}
9211
9212	setError (ei);
9213	}
9214
9215	if (!errorInSubtask)
9216	{
9217	/* set the result (this will try to fetch current error info on failure) */
9218	aTask.progress->notifyComplete (rc);
9219	}
9220
9221	if (SUCCEEDED (rc))
9222	mParent->onSnapshotDiscarded (mData->mUuid, Guid());
9223
9224	LogFlowThisFunc (("Done discarding current state (rc=%08X)\n", rc));
9225
9226	LogFlowThisFuncLeave();
9227	}
9228
9229	/**
9230	* Helper to change the machine state (reimplementation).
9231	*
9232	* @note Locks this object for writing.
9233	*/
9234	HRESULT SessionMachine::setMachineState (MachineState_T aMachineState)
9235	{
9236	LogFlowThisFuncEnter();
9237	LogFlowThisFunc (("aMachineState=%d\n", aMachineState));
9238
9239	AutoCaller autoCaller (this);
9240	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9241
9242	AutoLock alock (this);
9243
9244	MachineState_T oldMachineState = mData->mMachineState;
9245
9246	AssertMsgReturn (oldMachineState != aMachineState,
9247	("oldMachineState=%d, aMachineState=%d\n",
9248	oldMachineState, aMachineState), E_FAIL);
9249
9250	HRESULT rc = S_OK;
9251
9252	int stsFlags = 0;
9253	bool deleteSavedState = false;
9254
9255	/* detect some state transitions */
9256
9257	if (oldMachineState < MachineState_Running &&
9258	aMachineState >= MachineState_Running &&
9259	aMachineState != MachineState_Discarding)
9260	{
9261	/*
9262	* the EMT thread is about to start, so mark attached HDDs as busy
9263	* and all its ancestors as being in use
9264	*/
9265	for (HDData::HDAttachmentList::const_iterator it =
9266	mHDData->mHDAttachments.begin();
9267	it != mHDData->mHDAttachments.end();
9268	++ it)
9269	{
9270	ComObjPtr <HardDisk> hd = (*it)->hardDisk();
9271	AutoLock hdLock (hd);
9272	hd->setBusy();
9273	hd->addReaderOnAncestors();
9274	}
9275	}
9276	else
9277	if (oldMachineState >= MachineState_Running &&
9278	oldMachineState != MachineState_Discarding &&
9279	aMachineState < MachineState_Running)
9280	{
9281	/*
9282	* the EMT thread stopped, so mark attached HDDs as no more busy
9283	* and remove the in-use flag from all its ancestors
9284	*/
9285	for (HDData::HDAttachmentList::const_iterator it =
9286	mHDData->mHDAttachments.begin();
9287	it != mHDData->mHDAttachments.end();
9288	++ it)
9289	{
9290	ComObjPtr <HardDisk> hd = (*it)->hardDisk();
9291	AutoLock hdLock (hd);
9292	hd->releaseReaderOnAncestors();
9293	hd->clearBusy();
9294	}
9295	}
9296
9297	if (oldMachineState == MachineState_Restoring)
9298	{
9299	if (aMachineState != MachineState_Saved)
9300	{
9301	/*
9302	* delete the saved state file once the machine has finished
9303	* restoring from it (note that Console sets the state from
9304	* Restoring to Saved if the VM couldn't restore successfully,
9305	* to give the user an ability to fix an error and retry --
9306	* we keep the saved state file in this case)
9307	*/
9308	deleteSavedState = true;
9309	}
9310	}
9311	else
9312	if (oldMachineState == MachineState_Saved &&
9313	(aMachineState == MachineState_PoweredOff \|\|
9314	aMachineState == MachineState_Aborted))
9315	{
9316	/*
9317	* delete the saved state after Console::DiscardSavedState() is called
9318	* or if the VM process (owning a direct VM session) crashed while the
9319	* VM was Saved
9320	*/
9321
9322	/// @todo (dmik)
9323	// Not sure that deleting the saved state file just because of the
9324	// client death before it attempted to restore the VM is a good
9325	// thing. But when it crashes we need to go to the Aborted state
9326	// which cannot have the saved state file associated... The only
9327	// way to fix this is to make the Aborted condition not a VM state
9328	// but a bool flag: i.e., when a crash occurs, set it to true and
9329	// change the state to PoweredOff or Saved depending on the
9330	// saved state presence.
9331
9332	deleteSavedState = true;
9333	mData->mCurrentStateModified = TRUE;
9334	stsFlags \|= SaveSTS_CurStateModified;
9335	}
9336
9337	if (aMachineState == MachineState_Starting \|\|
9338	aMachineState == MachineState_Restoring)
9339	{
9340	/*
9341	* set the current state modified flag to indicate that the
9342	* current state is no more identical to the state in the
9343	* current snapshot
9344	*/
9345	if (!mData->mCurrentSnapshot.isNull())
9346	{
9347	mData->mCurrentStateModified = TRUE;
9348	stsFlags \|= SaveSTS_CurStateModified;
9349	}
9350	}
9351
9352	if (deleteSavedState == true)
9353	{
9354	Assert (!mSSData->mStateFilePath.isEmpty());
9355	RTFileDelete (Utf8Str (mSSData->mStateFilePath));
9356	mSSData->mStateFilePath.setNull();
9357	stsFlags \|= SaveSTS_StateFilePath;
9358	}
9359
9360	/* redirect to the underlying peer machine */
9361	mPeer->setMachineState (aMachineState);
9362
9363	if (aMachineState == MachineState_PoweredOff \|\|
9364	aMachineState == MachineState_Aborted \|\|
9365	aMachineState == MachineState_Saved)
9366	{
9367	stsFlags \|= SaveSTS_StateTimeStamp;
9368	}
9369
9370	rc = saveStateSettings (stsFlags);
9371
9372	if ((oldMachineState != MachineState_PoweredOff &&
9373	oldMachineState != MachineState_Aborted) &&
9374	(aMachineState == MachineState_PoweredOff \|\|
9375	aMachineState == MachineState_Aborted))
9376	{
9377	/*
9378	* clear differencing hard disks based on immutable hard disks
9379	* once we've been shut down for any reason
9380	*/
9381	rc = wipeOutImmutableDiffs();
9382	}
9383
9384	LogFlowThisFunc (("rc=%08X\n", rc));
9385	LogFlowThisFuncLeave();
9386	return rc;
9387	}
9388
9389	/**
9390	* Sends the current machine state value to the VM process.
9391	*
9392	* @note Locks this object for reading, then calls a client process.
9393	*/
9394	HRESULT SessionMachine::updateMachineStateOnClient()
9395	{
9396	AutoCaller autoCaller (this);
9397	AssertComRCReturn (autoCaller.rc(), autoCaller.rc());
9398
9399	ComPtr <IInternalSessionControl> directControl;
9400	{
9401	AutoReaderLock alock (this);
9402	AssertReturn (!!mData, E_FAIL);
9403	directControl = mData->mSession.mDirectControl;
9404
9405	/* directControl may be already set to NULL here in #OnSessionEnd()
9406	* called too early by the direct session process while there is still
9407	* some operation (like discarding the snapshot) in progress. The client
9408	* process in this case is waiting inside Session::close() for the
9409	* "end session" process object to complete, while #uninit() called by
9410	* #checkForDeath() on the Watcher thread is waiting for the pending
9411	* operation to complete. For now, we accept this inconsitent behavior
9412	* and simply do nothing here. */
9413
9414	if (mData->mSession.mState == SessionState_SessionClosing)
9415	return S_OK;
9416
9417	AssertReturn (!directControl.isNull(), E_FAIL);
9418	}
9419
9420	return directControl->UpdateMachineState (mData->mMachineState);
9421	}
9422
9423	/* static */
9424	DECLCALLBACK(int) SessionMachine::taskHandler (RTTHREAD thread, void *pvUser)
9425	{
9426	AssertReturn (pvUser, VERR_INVALID_POINTER);
9427
9428	Task task = static_cast <Task > (pvUser);
9429	task->handler();
9430
9431	// it's our responsibility to delete the task
9432	delete task;
9433
9434	return 0;
9435	}
9436
9437	/////////////////////////////////////////////////////////////////////////////
9438	// SnapshotMachine class
9439	/////////////////////////////////////////////////////////////////////////////
9440
9441	DEFINE_EMPTY_CTOR_DTOR (SnapshotMachine)
9442
9443	HRESULT SnapshotMachine::FinalConstruct()
9444	{
9445	LogFlowThisFunc (("\n"));
9446
9447	/* set the proper type to indicate we're the SnapshotMachine instance */
9448	unconst (mType) = IsSnapshotMachine;
9449
9450	return S_OK;
9451	}
9452
9453	void SnapshotMachine::FinalRelease()
9454	{
9455	LogFlowThisFunc (("\n"));
9456
9457	uninit();
9458	}
9459
9460	/**
9461	* Initializes the SnapshotMachine object when taking a snapshot.
9462	*
9463	* @param aSessionMachine machine to take a snapshot from
9464	* @param aSnapshotId snapshot ID of this snapshot machine
9465	* @param aStateFilePath file where the execution state will be later saved
9466	* (or NULL for the offline snapshot)
9467	*
9468	* @note Locks aSessionMachine object for reading.
9469	*/
9470	HRESULT SnapshotMachine::init (SessionMachine *aSessionMachine,
9471	INPTR GUIDPARAM aSnapshotId,
9472	INPTR BSTR aStateFilePath)
9473	{
9474	LogFlowThisFuncEnter();
9475	LogFlowThisFunc (("mName={%ls}\n", aSessionMachine->mUserData->mName.raw()));
9476
9477	AssertReturn (aSessionMachine && !Guid (aSnapshotId).isEmpty(), E_INVALIDARG);
9478
9479	/* Enclose the state transition NotReady->InInit->Ready */
9480	AutoInitSpan autoInitSpan (this);
9481	AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
9482
9483	mSnapshotId = aSnapshotId;
9484
9485	AutoReaderLock alock (aSessionMachine);
9486
9487	/* memorize the primary Machine instance (i.e. not SessionMachine!) */
9488	unconst (mPeer) = aSessionMachine->mPeer;
9489	/* share the parent pointer */
9490	unconst (mParent) = mPeer->mParent;
9491
9492	/* take the pointer to Data to share */
9493	mData.share (mPeer->mData);
9494	/*
9495	* take the pointer to UserData to share
9496	* (our UserData must always be the same as Machine's data)
9497	*/
9498	mUserData.share (mPeer->mUserData);
9499	/* make a private copy of all other data (recent changes from SessionMachine) */
9500	mHWData.attachCopy (aSessionMachine->mHWData);
9501	mHDData.attachCopy (aSessionMachine->mHDData);
9502
9503	/* SSData is always unique for SnapshotMachine */
9504	mSSData.allocate();
9505	mSSData->mStateFilePath = aStateFilePath;
9506
9507	/*
9508	* create copies of all shared folders (mHWData after attiching a copy
9509	* contains just references to original objects)
9510	*/
9511	for (HWData::SharedFolderList::iterator it = mHWData->mSharedFolders.begin();
9512	it != mHWData->mSharedFolders.end();
9513	++ it)
9514	{
9515	ComObjPtr <SharedFolder> folder;
9516	folder.createObject();
9517	HRESULT rc = folder->initCopy (this, *it);
9518	CheckComRCReturnRC (rc);
9519	*it = folder;
9520	}
9521
9522	/* create all other child objects that will be immutable private copies */
9523
9524	unconst (mBIOSSettings).createObject();
9525	mBIOSSettings->initCopy (this, mPeer->mBIOSSettings);
9526
9527	#ifdef VBOX_VRDP
9528	unconst (mVRDPServer).createObject();
9529	mVRDPServer->initCopy (this, mPeer->mVRDPServer);
9530	#endif
9531
9532	unconst (mDVDDrive).createObject();
9533	mDVDDrive->initCopy (this, mPeer->mDVDDrive);
9534
9535	unconst (mFloppyDrive).createObject();
9536	mFloppyDrive->initCopy (this, mPeer->mFloppyDrive);
9537
9538	unconst (mAudioAdapter).createObject();
9539	mAudioAdapter->initCopy (this, mPeer->mAudioAdapter);
9540
9541	unconst (mUSBController).createObject();
9542	mUSBController->initCopy (this, mPeer->mUSBController);
9543
9544	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
9545	{
9546	unconst (mNetworkAdapters [slot]).createObject();
9547	mNetworkAdapters [slot]->initCopy (this, mPeer->mNetworkAdapters [slot]);
9548	}
9549
9550	/* Confirm a successful initialization when it's the case */
9551	autoInitSpan.setSucceeded();
9552
9553	LogFlowThisFuncLeave();
9554	return S_OK;
9555	}
9556
9557	/**
9558	* Initializes the SnapshotMachine object when loading from the settings file.
9559	*
9560	* @param aMachine machine the snapshot belngs to
9561	* @param aHWNode <Hardware> node
9562	* @param aHDAsNode <HardDiskAttachments> node
9563	* @param aSnapshotId snapshot ID of this snapshot machine
9564	* @param aStateFilePath file where the execution state is saved
9565	* (or NULL for the offline snapshot)
9566	*
9567	* @note Locks aMachine object for reading.
9568	*/
9569	HRESULT SnapshotMachine::init (Machine *aMachine, CFGNODE aHWNode, CFGNODE aHDAsNode,
9570	INPTR GUIDPARAM aSnapshotId, INPTR BSTR aStateFilePath)
9571	{
9572	LogFlowThisFuncEnter();
9573	LogFlowThisFunc (("mName={%ls}\n", aMachine->mUserData->mName.raw()));
9574
9575	AssertReturn (aMachine && aHWNode && aHDAsNode && !Guid (aSnapshotId).isEmpty(),
9576	E_INVALIDARG);
9577
9578	/* Enclose the state transition NotReady->InInit->Ready */
9579	AutoInitSpan autoInitSpan (this);
9580	AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
9581
9582	mSnapshotId = aSnapshotId;
9583
9584	AutoReaderLock alock (aMachine);
9585
9586	/* memorize the primary Machine instance */
9587	unconst (mPeer) = aMachine;
9588	/* share the parent pointer */
9589	unconst (mParent) = mPeer->mParent;
9590
9591	/* take the pointer to Data to share */
9592	mData.share (mPeer->mData);
9593	/*
9594	* take the pointer to UserData to share
9595	* (our UserData must always be the same as Machine's data)
9596	*/
9597	mUserData.share (mPeer->mUserData);
9598	/* allocate private copies of all other data (will be loaded from settings) */
9599	mHWData.allocate();
9600	mHDData.allocate();
9601
9602	/* SSData is always unique for SnapshotMachine */
9603	mSSData.allocate();
9604	mSSData->mStateFilePath = aStateFilePath;
9605
9606	/* create all other child objects that will be immutable private copies */
9607
9608	unconst (mBIOSSettings).createObject();
9609	mBIOSSettings->init (this);
9610
9611	#ifdef VBOX_VRDP
9612	unconst (mVRDPServer).createObject();
9613	mVRDPServer->init (this);
9614	#endif
9615
9616	unconst (mDVDDrive).createObject();
9617	mDVDDrive->init (this);
9618
9619	unconst (mFloppyDrive).createObject();
9620	mFloppyDrive->init (this);
9621
9622	unconst (mAudioAdapter).createObject();
9623	mAudioAdapter->init (this);
9624
9625	unconst (mUSBController).createObject();
9626	mUSBController->init (this);
9627
9628	for (ULONG slot = 0; slot < ELEMENTS (mNetworkAdapters); slot ++)
9629	{
9630	unconst (mNetworkAdapters [slot]).createObject();
9631	mNetworkAdapters [slot]->init (this, slot);
9632	}
9633
9634	/* load hardware and harddisk settings */
9635
9636	HRESULT rc = loadHardware (aHWNode);
9637	if (SUCCEEDED (rc))
9638	rc = loadHardDisks (aHDAsNode, true /* aRegistered */, &mSnapshotId);
9639
9640	if (SUCCEEDED (rc))
9641	{
9642	/* commit all changes made during the initialization */
9643	commit();
9644	}
9645
9646	/* Confirm a successful initialization when it's the case */
9647	if (SUCCEEDED (rc))
9648	autoInitSpan.setSucceeded();
9649
9650	LogFlowThisFuncLeave();
9651	return rc;
9652	}
9653
9654	/**
9655	* Uninitializes this SnapshotMachine object.
9656	*/
9657	void SnapshotMachine::uninit()
9658	{
9659	LogFlowThisFuncEnter();
9660
9661	/* Enclose the state transition Ready->InUninit->NotReady */
9662	AutoUninitSpan autoUninitSpan (this);
9663	if (autoUninitSpan.uninitDone())
9664	return;
9665
9666	uninitDataAndChildObjects();
9667
9668	unconst (mParent).setNull();
9669	unconst (mPeer).setNull();
9670
9671	LogFlowThisFuncLeave();
9672	}
9673
9674	// AutoLock::Lockable interface
9675	////////////////////////////////////////////////////////////////////////////////
9676
9677	/**
9678	* Overrides VirtualBoxBase::lockHandle() in order to share the lock handle
9679	* with the primary Machine instance (mPeer).
9680	*/
9681	AutoLock::Handle *SnapshotMachine::lockHandle() const
9682	{
9683	AssertReturn (!mPeer.isNull(), NULL);
9684	return mPeer->lockHandle();
9685	}
9686
9687	// public methods only for internal purposes
9688	////////////////////////////////////////////////////////////////////////////////
9689
9690	/**
9691	* Called by the snapshot object associated with this SnapshotMachine when
9692	* snapshot data such as name or description is changed.
9693	*
9694	* @note Locks this object for writing.
9695	*/
9696	HRESULT SnapshotMachine::onSnapshotChange (Snapshot *aSnapshot)
9697	{
9698	AutoLock alock (this);
9699
9700	mPeer->saveSnapshotSettings (aSnapshot, SaveSS_UpdateAttrsOp);
9701
9702	/* inform callbacks */
9703	mParent->onSnapshotChange (mData->mUuid, aSnapshot->data().mId);
9704
9705	return S_OK;
9706	}

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source: vbox/trunk/src/VBox/Main/MachineImpl.cpp@ 1713

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