/* $Id: VirtualBoxImpl.cpp 28955 2010-05-02 18:03:45Z vboxsync $ */ /** @file * Implementation of IVirtualBox in VBoxSVC. */ /* * Copyright (C) 2006-2010 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "VBox/com/EventQueue.h" #include #include #include #include #include #include #include #include #include #include // for auto_ptr #include #include "VirtualBoxImpl.h" #include "Global.h" #include "MachineImpl.h" #include "MediumImpl.h" #include "SharedFolderImpl.h" #include "ProgressImpl.h" #include "HostImpl.h" #include "USBControllerImpl.h" #include "SystemPropertiesImpl.h" #include "GuestOSTypeImpl.h" #include "DHCPServerRunner.h" #include "DHCPServerImpl.h" #ifdef VBOX_WITH_RESOURCE_USAGE_API #include "PerformanceImpl.h" #endif /* VBOX_WITH_RESOURCE_USAGE_API */ #include "AutoCaller.h" #include "Logging.h" #include "objectslist.h" #ifdef RT_OS_WINDOWS # include "win/svchlp.h" #endif //////////////////////////////////////////////////////////////////////////////// // // Definitions // //////////////////////////////////////////////////////////////////////////////// #define VBOX_GLOBAL_SETTINGS_FILE "VirtualBox.xml" //////////////////////////////////////////////////////////////////////////////// // // Global variables // //////////////////////////////////////////////////////////////////////////////// // static Bstr VirtualBox::sVersion; // static ULONG VirtualBox::sRevision; // static Bstr VirtualBox::sPackageType; //////////////////////////////////////////////////////////////////////////////// // // VirtualBoxCallbackRegistration // //////////////////////////////////////////////////////////////////////////////// /** * Registered IVirtualBoxCallback, used by VirtualBox::CallbackList and * VirtualBox::Data::llCallbacks. * * In addition to keeping the interface pointer this also keeps track of the * methods that asked to not be called again. The latter is for reducing * unnecessary IPC. */ class VirtualBoxCallbackRegistration { public: ComPtr ptrICb; /** Bitmap of disabled callback methods, that is methods that has return * VBOX_E_DONT_CALL_AGAIN. */ uint32_t bmDisabled; /** Callback bit indexes (for bmDisabled). */ typedef enum { kOnMachineStateChange = 0, kOnMachineDataChange, kOnExtraDataCanChange, kOnExtraDataChange, kOnMediumRegistered, kOnMachineRegistered, kOnSessionStateChange, kOnSnapshotTaken, kOnSnapshotDeleted, kOnSnapshotChange, kOnGuestPropertyChange } CallbackBit; VirtualBoxCallbackRegistration(IVirtualBoxCallback *pIVirtualBoxCallback) : ptrICb(pIVirtualBoxCallback), bmDisabled(0) { /* nothing */ } ~VirtualBoxCallbackRegistration() { /* nothing */ } /** Equal operator for std::find. */ bool operator==(const VirtualBoxCallbackRegistration &rThat) const { return this->ptrICb == rThat.ptrICb; } /** * Checks if the callback is wanted, i.e. if the method hasn't yet returned * VBOX_E_DONT_CALL_AGAIN. * @returns @c true if it is wanted, @c false if not. * @param enmBit The callback, be sure to get this one right! */ inline bool isWanted(CallbackBit enmBit) const { return !ASMBitTest(&bmDisabled, enmBit); } /** * Called in response to VBOX_E_DONT_CALL_AGAIN. * @param enmBit The callback, be sure to get this one right! */ inline void setDontCallAgain(CallbackBit enmBit) { ASMAtomicBitSet(&bmDisabled, enmBit); } }; //////////////////////////////////////////////////////////////////////////////// // // CallbackEvent class // //////////////////////////////////////////////////////////////////////////////// /** * Abstract callback event class to asynchronously call VirtualBox callbacks * on a dedicated event thread. Subclasses reimplement #handleCallback() * to call appropriate IVirtualBoxCallback methods depending on the event * to be dispatched. * * @note The VirtualBox instance passed to the constructor is strongly * referenced, so that the VirtualBox singleton won't be released until the * event gets handled by the event thread. */ class VirtualBox::CallbackEvent : public Event { public: CallbackEvent(VirtualBox *aVirtualBox, VirtualBoxCallbackRegistration::CallbackBit aWhat) : mVirtualBox(aVirtualBox), mWhat(aWhat) { Assert(aVirtualBox); } void *handler(); virtual HRESULT handleCallback(const ComPtr &aCallback) = 0; private: /** * Note that this is a weak ref -- the CallbackEvent handler thread * is bound to the lifetime of the VirtualBox instance, so it's safe. */ VirtualBox *mVirtualBox; protected: /** The callback being called, used for handling VBOX_E_DONT_CALL_AGAIN. */ VirtualBoxCallbackRegistration::CallbackBit mWhat; }; //////////////////////////////////////////////////////////////////////////////// // // VirtualBox private member data definition // //////////////////////////////////////////////////////////////////////////////// #if defined(RT_OS_WINDOWS) #define UPDATEREQARG NULL #define UPDATEREQTYPE HANDLE #elif defined(RT_OS_OS2) #define UPDATEREQARG NIL_RTSEMEVENT #define UPDATEREQTYPE RTSEMEVENT #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) #define UPDATEREQARG #define UPDATEREQTYPE RTSEMEVENT #else # error "Port me!" #endif typedef ObjectsList MachinesOList; typedef ObjectsList MediaOList; typedef ObjectsList GuestOSTypesOList; typedef ObjectsList SharedFoldersOList; typedef ObjectsList DHCPServersOList; typedef std::map > ProgressMap; typedef std::map > HardDiskMap; /** * Main VirtualBox data structure. * @note |const| members are persistent during lifetime so can be accessed * without locking. */ struct VirtualBox::Data { Data() : pMainConfigFile(NULL), lockMachines(LOCKCLASS_LISTOFMACHINES), ollMachines(lockMachines), lockGuestOSTypes(LOCKCLASS_LISTOFOTHEROBJECTS), ollGuestOSTypes(lockGuestOSTypes), lockMedia(LOCKCLASS_LISTOFMEDIA), ollHardDisks(lockMedia), ollDVDImages(lockMedia), ollFloppyImages(lockMedia), lockSharedFolders(LOCKCLASS_LISTOFOTHEROBJECTS), ollSharedFolders(lockSharedFolders), lockDHCPServers(LOCKCLASS_LISTOFOTHEROBJECTS), ollDHCPServers(lockDHCPServers), mtxProgressOperations(LOCKCLASS_PROGRESSLIST), updateReq(UPDATEREQARG), threadClientWatcher(NIL_RTTHREAD), threadAsyncEvent(NIL_RTTHREAD), pAsyncEventQ(NULL) {} ~Data() { if (pMainConfigFile) { delete pMainConfigFile; pMainConfigFile = NULL; } }; // const data members not requiring locking const Utf8Str strHomeDir; // VirtualBox main settings file const Utf8Str strSettingsFilePath; settings::MainConfigFile *pMainConfigFile; // const objects not requiring locking const ComObjPtr pHost; const ComObjPtr pSystemProperties; #ifdef VBOX_WITH_RESOURCE_USAGE_API const ComObjPtr pPerformanceCollector; #endif /* VBOX_WITH_RESOURCE_USAGE_API */ // Each of the following lists use a particular lock handle that protects the // list as a whole. As opposed to version 3.1 and earlier, these lists no // longer need the main VirtualBox object lock, but only the respective list // lock. In each case, the locking order is defined that the list must be // requested before object locks of members of the lists (see the order definitions // in AutoLock.h; e.g. LOCKCLASS_LISTOFMACHINES before LOCKCLASS_MACHINEOBJECT). RWLockHandle lockMachines; MachinesOList ollMachines; RWLockHandle lockGuestOSTypes; GuestOSTypesOList ollGuestOSTypes; // All the media lists are protected by the following locking handle: RWLockHandle lockMedia; MediaOList ollHardDisks, // base images only! ollDVDImages, ollFloppyImages; // the hard disks map is an additional map sorted by UUID for quick lookup // and contains ALL hard disks (base and differencing); it is protected by // the same lock as the other media lists above HardDiskMap mapHardDisks; // list of pending machine renames (also protected by media tree lock; // see VirtualBox::rememberMachineNameChangeForMedia()) struct PendingMachineRename { Utf8Str strConfigDirOld; Utf8Str strConfigDirNew; }; typedef std::list PendingMachineRenamesList; PendingMachineRenamesList llPendingMachineRenames; RWLockHandle lockSharedFolders; SharedFoldersOList ollSharedFolders; RWLockHandle lockDHCPServers; DHCPServersOList ollDHCPServers; RWLockHandle mtxProgressOperations; ProgressMap mapProgressOperations; CallbackList llCallbacks; // the following are data for the client watcher thread const UPDATEREQTYPE updateReq; const RTTHREAD threadClientWatcher; typedef std::list ProcessList; ProcessList llProcesses; // the following are data for the async event thread const RTTHREAD threadAsyncEvent; EventQueue * const pAsyncEventQ; }; // constructor / destructor ///////////////////////////////////////////////////////////////////////////// VirtualBox::VirtualBox() {} VirtualBox::~VirtualBox() {} HRESULT VirtualBox::FinalConstruct() { LogFlowThisFunc(("\n")); return init(); } void VirtualBox::FinalRelease() { LogFlowThisFunc(("\n")); uninit(); } // public initializer/uninitializer for internal purposes only ///////////////////////////////////////////////////////////////////////////// /** * Initializes the VirtualBox object. * * @return COM result code */ HRESULT VirtualBox::init() { /* Enclose the state transition NotReady->InInit->Ready */ AutoInitSpan autoInitSpan(this); AssertReturn(autoInitSpan.isOk(), E_FAIL); /* Locking this object for writing during init sounds a bit paradoxical, * but in the current locking mess this avoids that some code gets a * read lock and later calls code which wants the same write lock. */ AutoWriteLock lock(this COMMA_LOCKVAL_SRC_POS); // allocate our instance data m = new Data; LogFlow(("===========================================================\n")); LogFlowThisFuncEnter(); if (sVersion.isEmpty()) sVersion = VBOX_VERSION_STRING; sRevision = RTBldCfgRevision(); if (sPackageType.isEmpty()) sPackageType = VBOX_PACKAGE_STRING; LogFlowThisFunc(("Version: %ls, Package: %ls\n", sVersion.raw(), sPackageType.raw())); /* Get the VirtualBox home directory. */ { char szHomeDir[RTPATH_MAX]; int vrc = com::GetVBoxUserHomeDirectory(szHomeDir, sizeof(szHomeDir)); if (RT_FAILURE(vrc)) return setError(E_FAIL, tr("Could not create the VirtualBox home directory '%s' (%Rrc)"), szHomeDir, vrc); unconst(m->strHomeDir) = szHomeDir; } /* compose the VirtualBox.xml file name */ unconst(m->strSettingsFilePath) = Utf8StrFmt("%s%c%s", m->strHomeDir.raw(), RTPATH_DELIMITER, VBOX_GLOBAL_SETTINGS_FILE); HRESULT rc = S_OK; bool fCreate = false; try { // load and parse VirtualBox.xml; this will throw on XML or logic errors try { m->pMainConfigFile = new settings::MainConfigFile(&m->strSettingsFilePath); } catch (xml::EIPRTFailure &e) { // this is thrown by the XML backend if the RTOpen() call fails; // only if the main settings file does not exist, create it, // if there's something more serious, then do fail! if (e.rc() == VERR_FILE_NOT_FOUND) fCreate = true; else throw; } if (fCreate) m->pMainConfigFile = new settings::MainConfigFile(NULL); #ifdef VBOX_WITH_RESOURCE_USAGE_API /* create the performance collector object BEFORE host */ unconst(m->pPerformanceCollector).createObject(); rc = m->pPerformanceCollector->init(); ComAssertComRCThrowRC(rc); #endif /* VBOX_WITH_RESOURCE_USAGE_API */ /* create the host object early, machines will need it */ unconst(m->pHost).createObject(); rc = m->pHost->init(this); ComAssertComRCThrowRC(rc); rc = m->pHost->loadSettings(m->pMainConfigFile->host); if (FAILED(rc)) throw rc; /* create the system properties object, someone may need it too */ unconst(m->pSystemProperties).createObject(); rc = m->pSystemProperties->init(this); ComAssertComRCThrowRC(rc); rc = m->pSystemProperties->loadSettings(m->pMainConfigFile->systemProperties); if (FAILED(rc)) throw rc; /* guest OS type objects, needed by machines */ for (size_t i = 0; i < RT_ELEMENTS(Global::sOSTypes); ++ i) { ComObjPtr guestOSTypeObj; rc = guestOSTypeObj.createObject(); if (SUCCEEDED(rc)) { rc = guestOSTypeObj->init(Global::sOSTypes[i].familyId, Global::sOSTypes[i].familyDescription, Global::sOSTypes[i].id, Global::sOSTypes[i].description, Global::sOSTypes[i].osType, Global::sOSTypes[i].osHint, Global::sOSTypes[i].recommendedRAM, Global::sOSTypes[i].recommendedVRAM, Global::sOSTypes[i].recommendedHDD, Global::sOSTypes[i].networkAdapterType, Global::sOSTypes[i].numSerialEnabled, Global::sOSTypes[i].dvdStorageControllerType, Global::sOSTypes[i].dvdStorageBusType, Global::sOSTypes[i].hdStorageControllerType, Global::sOSTypes[i].hdStorageBusType); if (SUCCEEDED(rc)) m->ollGuestOSTypes.addChild(guestOSTypeObj); } ComAssertComRCThrowRC(rc); } /* all registered media, needed by machines */ if (FAILED(rc = initMedia())) throw rc; /* machines */ if (FAILED(rc = initMachines())) throw rc; #ifdef DEBUG LogFlowThisFunc(("Dumping media backreferences\n")); dumpAllBackRefs(); #endif /* net services */ for (settings::DHCPServersList::const_iterator it = m->pMainConfigFile->llDhcpServers.begin(); it != m->pMainConfigFile->llDhcpServers.end(); ++it) { const settings::DHCPServer &data = *it; ComObjPtr pDhcpServer; if (SUCCEEDED(rc = pDhcpServer.createObject())) rc = pDhcpServer->init(this, data); if (FAILED(rc)) throw rc; rc = registerDHCPServer(pDhcpServer, false /* aSaveRegistry */); if (FAILED(rc)) throw rc; } } catch (HRESULT err) { /* we assume that error info is set by the thrower */ rc = err; } catch (...) { rc = VirtualBox::handleUnexpectedExceptions(RT_SRC_POS); } if (SUCCEEDED(rc)) { /* start the client watcher thread */ #if defined(RT_OS_WINDOWS) unconst(m->updateReq) = ::CreateEvent(NULL, FALSE, FALSE, NULL); #elif defined(RT_OS_OS2) RTSemEventCreate(&unconst(m->updateReq)); #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) RTSemEventCreate(&unconst(m->updateReq)); #else # error "Port me!" #endif int vrc = RTThreadCreate(&unconst(m->threadClientWatcher), ClientWatcher, (void *)this, 0, RTTHREADTYPE_MAIN_WORKER, RTTHREADFLAGS_WAITABLE, "Watcher"); ComAssertRC(vrc); if (RT_FAILURE(vrc)) rc = E_FAIL; } if (SUCCEEDED(rc)) { try { /* start the async event handler thread */ int vrc = RTThreadCreate(&unconst(m->threadAsyncEvent), AsyncEventHandler, &unconst(m->pAsyncEventQ), 0, RTTHREADTYPE_MAIN_WORKER, RTTHREADFLAGS_WAITABLE, "EventHandler"); ComAssertRCThrow(vrc, E_FAIL); /* wait until the thread sets m->pAsyncEventQ */ RTThreadUserWait(m->threadAsyncEvent, RT_INDEFINITE_WAIT); ComAssertThrow(m->pAsyncEventQ, E_FAIL); } catch (HRESULT aRC) { rc = aRC; } } /* Confirm a successful initialization when it's the case */ if (SUCCEEDED(rc)) autoInitSpan.setSucceeded(); LogFlowThisFunc(("rc=%08X\n", rc)); LogFlowThisFuncLeave(); LogFlow(("===========================================================\n")); return rc; } HRESULT VirtualBox::initMachines() { for (settings::MachinesRegistry::const_iterator it = m->pMainConfigFile->llMachines.begin(); it != m->pMainConfigFile->llMachines.end(); ++it) { HRESULT rc = S_OK; const settings::MachineRegistryEntry &xmlMachine = *it; Guid uuid = xmlMachine.uuid; ComObjPtr pMachine; if (SUCCEEDED(rc = pMachine.createObject())) { rc = pMachine->init(this, xmlMachine.strSettingsFile, &uuid); if (SUCCEEDED(rc)) rc = registerMachine(pMachine); if (FAILED(rc)) return rc; } } return S_OK; } HRESULT VirtualBox::initMedia() { AutoWriteLock treeLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); HRESULT rc = S_OK; settings::MediaList::const_iterator it; for (it = m->pMainConfigFile->llHardDisks.begin(); it != m->pMainConfigFile->llHardDisks.end(); ++it) { const settings::Medium &xmlHD = *it; ComObjPtr pHardDisk; if (SUCCEEDED(rc = pHardDisk.createObject())) rc = pHardDisk->init(this, NULL, // parent DeviceType_HardDisk, xmlHD); // XML data; this recurses to processes the children if (FAILED(rc)) return rc; rc = registerHardDisk(pHardDisk, NULL /*pfNeedsSaveSettings*/ ); if (FAILED(rc)) return rc; } for (it = m->pMainConfigFile->llDvdImages.begin(); it != m->pMainConfigFile->llDvdImages.end(); ++it) { const settings::Medium &xmlDvd = *it; ComObjPtr pImage; if (SUCCEEDED(pImage.createObject())) rc = pImage->init(this, NULL, DeviceType_DVD, xmlDvd); if (FAILED(rc)) return rc; rc = registerImage(pImage, DeviceType_DVD, NULL /*pfNeedsSaveSettings*/ ); if (FAILED(rc)) return rc; } for (it = m->pMainConfigFile->llFloppyImages.begin(); it != m->pMainConfigFile->llFloppyImages.end(); ++it) { const settings::Medium &xmlFloppy = *it; ComObjPtr pImage; if (SUCCEEDED(pImage.createObject())) rc = pImage->init(this, NULL, DeviceType_Floppy, xmlFloppy); if (FAILED(rc)) return rc; rc = registerImage(pImage, DeviceType_Floppy, NULL /*pfNeedsSaveSettings*/ ); if (FAILED(rc)) return rc; } return S_OK; } void VirtualBox::uninit() { /* Enclose the state transition Ready->InUninit->NotReady */ AutoUninitSpan autoUninitSpan(this); if (autoUninitSpan.uninitDone()) return; LogFlow(("===========================================================\n")); LogFlowThisFuncEnter(); LogFlowThisFunc(("initFailed()=%d\n", autoUninitSpan.initFailed())); /* tell all our child objects we've been uninitialized */ LogFlowThisFunc(("Uninitializing machines (%d)...\n", m->ollMachines.size())); m->ollMachines.uninitAll(); m->ollFloppyImages.uninitAll(); m->ollDVDImages.uninitAll(); m->ollHardDisks.uninitAll(); m->ollDHCPServers.uninitAll(); m->mapProgressOperations.clear(); m->ollGuestOSTypes.uninitAll(); /* Note that we release singleton children after we've all other children. * In some cases this is important because these other children may use * some resources of the singletons which would prevent them from * uninitializing (as for example, mSystemProperties which owns * MediumFormat objects which Medium objects refer to) */ if (m->pSystemProperties) { m->pSystemProperties->uninit(); unconst(m->pSystemProperties).setNull(); } if (m->pHost) { m->pHost->uninit(); unconst(m->pHost).setNull(); } #ifdef VBOX_WITH_RESOURCE_USAGE_API if (m->pPerformanceCollector) { m->pPerformanceCollector->uninit(); unconst(m->pPerformanceCollector).setNull(); } #endif /* VBOX_WITH_RESOURCE_USAGE_API */ LogFlowThisFunc(("Releasing callbacks...\n")); if (m->llCallbacks.size()) { /* release all callbacks */ LogWarningFunc(("%d unregistered callbacks!\n", m->llCallbacks.size())); m->llCallbacks.clear(); } LogFlowThisFunc(("Terminating the async event handler...\n")); if (m->threadAsyncEvent != NIL_RTTHREAD) { /* signal to exit the event loop */ if (m->pAsyncEventQ->postEvent(NULL)) { /* * Wait for thread termination (only if we've successfully posted * a NULL event!) */ int vrc = RTThreadWait(m->threadAsyncEvent, 60000, NULL); if (RT_FAILURE(vrc)) LogWarningFunc(("RTThreadWait(%RTthrd) -> %Rrc\n", m->threadAsyncEvent, vrc)); } else { AssertMsgFailed(("postEvent(NULL) failed\n")); RTThreadWait(m->threadAsyncEvent, 0, NULL); } unconst(m->threadAsyncEvent) = NIL_RTTHREAD; unconst(m->pAsyncEventQ) = NULL; } LogFlowThisFunc(("Terminating the client watcher...\n")); if (m->threadClientWatcher != NIL_RTTHREAD) { /* signal the client watcher thread */ updateClientWatcher(); /* wait for the termination */ RTThreadWait(m->threadClientWatcher, RT_INDEFINITE_WAIT, NULL); unconst(m->threadClientWatcher) = NIL_RTTHREAD; } m->llProcesses.clear(); #if defined(RT_OS_WINDOWS) if (m->updateReq != NULL) { ::CloseHandle(m->updateReq); unconst(m->updateReq) = NULL; } #elif defined(RT_OS_OS2) if (m->updateReq != NIL_RTSEMEVENT) { RTSemEventDestroy(m->updateReq); unconst(m->updateReq) = NIL_RTSEMEVENT; } #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) if (m->updateReq != NIL_RTSEMEVENT) { RTSemEventDestroy(m->updateReq); unconst(m->updateReq) = NIL_RTSEMEVENT; } #else # error "Port me!" #endif // clean up our instance data delete m; /* Unload hard disk plugin backends. */ VDShutdown(); LogFlowThisFuncLeave(); LogFlow(("===========================================================\n")); } // IVirtualBox properties ///////////////////////////////////////////////////////////////////////////// STDMETHODIMP VirtualBox::COMGETTER(Version)(BSTR *aVersion) { CheckComArgNotNull(aVersion); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); sVersion.cloneTo(aVersion); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(Revision)(ULONG *aRevision) { CheckComArgNotNull(aRevision); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); *aRevision = sRevision; return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(PackageType)(BSTR *aPackageType) { CheckComArgNotNull(aPackageType); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); sPackageType.cloneTo(aPackageType); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(HomeFolder)(BSTR *aHomeFolder) { CheckComArgNotNull(aHomeFolder); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* mHomeDir is const and doesn't need a lock */ m->strHomeDir.cloneTo(aHomeFolder); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(SettingsFilePath)(BSTR *aSettingsFilePath) { CheckComArgNotNull(aSettingsFilePath); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* mCfgFile.mName is const and doesn't need a lock */ m->strSettingsFilePath.cloneTo(aSettingsFilePath); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(Host)(IHost **aHost) { CheckComArgOutSafeArrayPointerValid(aHost); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* mHost is const, no need to lock */ m->pHost.queryInterfaceTo(aHost); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(SystemProperties)(ISystemProperties **aSystemProperties) { CheckComArgOutSafeArrayPointerValid(aSystemProperties); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* mSystemProperties is const, no need to lock */ m->pSystemProperties.queryInterfaceTo(aSystemProperties); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(Machines)(ComSafeArrayOut(IMachine *, aMachines)) { if (ComSafeArrayOutIsNull(aMachines)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray machines(m->ollMachines.getList()); machines.detachTo(ComSafeArrayOutArg(aMachines)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(HardDisks)(ComSafeArrayOut(IMedium *, aHardDisks)) { if (ComSafeArrayOutIsNull(aHardDisks)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollHardDisks.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray hardDisks(m->ollHardDisks.getList()); hardDisks.detachTo(ComSafeArrayOutArg(aHardDisks)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(DVDImages)(ComSafeArrayOut(IMedium *, aDVDImages)) { if (ComSafeArrayOutIsNull(aDVDImages)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollDVDImages.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray images(m->ollDVDImages.getList()); images.detachTo(ComSafeArrayOutArg(aDVDImages)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(FloppyImages)(ComSafeArrayOut(IMedium *, aFloppyImages)) { if (ComSafeArrayOutIsNull(aFloppyImages)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollFloppyImages.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray images(m->ollFloppyImages.getList()); images.detachTo(ComSafeArrayOutArg(aFloppyImages)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(ProgressOperations)(ComSafeArrayOut(IProgress *, aOperations)) { CheckComArgOutSafeArrayPointerValid(aOperations); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* protect mProgressOperations */ AutoReadLock safeLock(m->mtxProgressOperations COMMA_LOCKVAL_SRC_POS); SafeIfaceArray progress(m->mapProgressOperations); progress.detachTo(ComSafeArrayOutArg(aOperations)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(GuestOSTypes)(ComSafeArrayOut(IGuestOSType *, aGuestOSTypes)) { CheckComArgOutSafeArrayPointerValid(aGuestOSTypes); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollGuestOSTypes.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray ostypes(m->ollGuestOSTypes.getList()); ostypes.detachTo(ComSafeArrayOutArg(aGuestOSTypes)); return S_OK; } STDMETHODIMP VirtualBox::COMGETTER(SharedFolders)(ComSafeArrayOut(ISharedFolder *, aSharedFolders)) { #ifndef RT_OS_WINDOWS NOREF(aSharedFoldersSize); #endif /* RT_OS_WINDOWS */ CheckComArgOutSafeArrayPointerValid(aSharedFolders); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); return setError(E_NOTIMPL, "Not yet implemented"); } STDMETHODIMP VirtualBox::COMGETTER(PerformanceCollector)(IPerformanceCollector **aPerformanceCollector) { #ifdef VBOX_WITH_RESOURCE_USAGE_API CheckComArgOutSafeArrayPointerValid(aPerformanceCollector); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* mPerformanceCollector is const, no need to lock */ m->pPerformanceCollector.queryInterfaceTo(aPerformanceCollector); return S_OK; #else /* !VBOX_WITH_RESOURCE_USAGE_API */ ReturnComNotImplemented(); #endif /* !VBOX_WITH_RESOURCE_USAGE_API */ } STDMETHODIMP VirtualBox::COMGETTER(DHCPServers)(ComSafeArrayOut(IDHCPServer *, aDHCPServers)) { if (ComSafeArrayOutIsNull(aDHCPServers)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock al(m->ollDHCPServers.getLockHandle() COMMA_LOCKVAL_SRC_POS); SafeIfaceArray svrs(m->ollDHCPServers.getList()); svrs.detachTo(ComSafeArrayOutArg(aDHCPServers)); return S_OK; } STDMETHODIMP VirtualBox::CheckFirmwarePresent(FirmwareType_T aFirmwareType, IN_BSTR aVersion, BSTR *aUrl, BSTR *aFile, BOOL *aResult) { CheckComArgNotNull(aResult); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); const char * url = NULL; NOREF(aVersion); static const struct { FirmwareType_T type; const char* fileName; const char* url; } firmwareDesc[] = { { /* compiled-in firmware */ FirmwareType_BIOS, NULL, NULL }, { FirmwareType_EFI32, "VBoxEFI32.fd", "http://virtualbox.org/firmware/VBoxEFI32.fd" }, { FirmwareType_EFI64, "VBoxEFI64.fd", "http://virtualbox.org/firmware/VBoxEFI64.fd" }, { FirmwareType_EFIDUAL, "VBoxEFIDual.fd", "http://virtualbox.org/firmware/VBoxEFIDual.fd" } }; for (size_t i = 0; i < sizeof(firmwareDesc) / sizeof(firmwareDesc[0]); i++) { if (aFirmwareType != firmwareDesc[i].type) continue; /* compiled-in firmware */ if (firmwareDesc[i].fileName == NULL) { *aResult = TRUE; break; } Utf8Str shortName, fullName; int rc; shortName = Utf8StrFmt("Firmware%c%s", RTPATH_DELIMITER, firmwareDesc[i].fileName); rc = calculateFullPath(shortName, fullName); AssertRCReturn(rc, rc); if (RTFileExists(fullName.raw())) { *aResult = TRUE; if (aFile) Utf8Str(fullName).cloneTo(aFile); break; } char pszVBoxPath[RTPATH_MAX]; rc = RTPathExecDir(pszVBoxPath, RTPATH_MAX); AssertRCReturn(rc, rc); fullName = Utf8StrFmt("%s%c%s", pszVBoxPath, RTPATH_DELIMITER, firmwareDesc[i].fileName); if (RTFileExists(fullName.raw())) { *aResult = TRUE; if (aFile) Utf8Str(fullName).cloneTo(aFile); break; } url = firmwareDesc[i].url; /** @todo: account for version in the URL */ if (aUrl != NULL) Utf8Str(firmwareDesc[i].url).cloneTo(aUrl); *aResult = FALSE; /* Assume single record per firmware type */ break; } return S_OK; } // IVirtualBox methods ///////////////////////////////////////////////////////////////////////////// /** @note Locks mSystemProperties object for reading. */ STDMETHODIMP VirtualBox::CreateMachine(IN_BSTR aName, IN_BSTR aOsTypeId, IN_BSTR aBaseFolder, IN_BSTR aId, BOOL aOverride, IMachine **aMachine) { LogFlowThisFuncEnter(); LogFlowThisFunc(("aName=\"%ls\",aOsTypeId =\"%ls\",aBaseFolder=\"%ls\"\n", aName, aOsTypeId, aBaseFolder)); CheckComArgStrNotEmptyOrNull(aName); /** @todo tighten checks on aId? */ CheckComArgOutPointerValid(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* Compose the settings file name using the following scheme: * * //.xml * * If a non-null and non-empty base folder is specified, the default * machine folder will be used as a base folder. */ Utf8Str strSettingsFile = aBaseFolder; if (strSettingsFile.isEmpty()) /* we use the non-full folder value below to keep the path relative */ strSettingsFile = getDefaultMachineFolder(); strSettingsFile = Utf8StrFmt("%s%c%ls%c%ls.xml", strSettingsFile.raw(), RTPATH_DELIMITER, aName, RTPATH_DELIMITER, aName); HRESULT rc = E_FAIL; /* create a new object */ ComObjPtr machine; rc = machine.createObject(); if (FAILED(rc)) return rc; /* Create UUID if an empty one was specified. */ Guid id(aId); if (id.isEmpty()) id.create(); GuestOSType *osType = NULL; rc = findGuestOSType(Bstr(aOsTypeId), osType); if (FAILED(rc)) return rc; /* initialize the machine object */ rc = machine->init(this, strSettingsFile, Utf8Str(aName), id, osType, aOverride, TRUE /* aNameSync */); if (SUCCEEDED(rc)) { /* set the return value */ rc = machine.queryInterfaceTo(aMachine); AssertComRC(rc); } LogFlowThisFuncLeave(); return rc; } STDMETHODIMP VirtualBox::CreateLegacyMachine(IN_BSTR aName, IN_BSTR aOsTypeId, IN_BSTR aSettingsFile, IN_BSTR aId, IMachine **aMachine) { CheckComArgStrNotEmptyOrNull(aName); CheckComArgStrNotEmptyOrNull(aSettingsFile); /** @todo tighten checks on aId? */ CheckComArgOutPointerValid(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = E_FAIL; Utf8Str settingsFile = aSettingsFile; /* append the default extension if none */ if (!RTPathHaveExt(settingsFile.c_str())) settingsFile = Utf8StrFmt("%s.xml", settingsFile.raw()); /* create a new object */ ComObjPtr machine; rc = machine.createObject(); if (FAILED(rc)) return rc; /* Create UUID if an empty one was specified. */ Guid id(aId); if (id.isEmpty()) id.create(); GuestOSType *osType = NULL; rc = findGuestOSType(Bstr(aOsTypeId), osType); if (FAILED(rc)) return rc; /* initialize the machine object */ rc = machine->init(this, settingsFile, Utf8Str(aName), id, osType, FALSE /* aOverride */, FALSE /* aNameSync */); if (SUCCEEDED(rc)) { /* set the return value */ rc = machine.queryInterfaceTo(aMachine); AssertComRC(rc); } return rc; } STDMETHODIMP VirtualBox::OpenMachine(IN_BSTR aSettingsFile, IMachine **aMachine) { CheckComArgStrNotEmptyOrNull(aSettingsFile); CheckComArgOutSafeArrayPointerValid(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = E_FAIL; /* create a new object */ ComObjPtr machine; rc = machine.createObject(); if (SUCCEEDED(rc)) { /* initialize the machine object */ rc = machine->init(this, aSettingsFile, NULL); /* const Guid *aId */ if (SUCCEEDED(rc)) { /* set the return value */ rc = machine.queryInterfaceTo(aMachine); ComAssertComRC(rc); } } return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::RegisterMachine(IMachine *aMachine) { CheckComArgNotNull(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc; Bstr name; rc = aMachine->COMGETTER(Name)(name.asOutParam()); if (FAILED(rc)) return rc; /* We can safely cast child to Machine * here because only Machine * implementations of IMachine can be among our children. */ Machine *pMachine = static_cast(aMachine); AutoCaller machCaller(pMachine); ComAssertComRCRetRC(machCaller.rc()); rc = registerMachine(pMachine); /* fire an event */ if (SUCCEEDED(rc)) onMachineRegistered(pMachine->getId(), TRUE); return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::GetMachine(IN_BSTR aId, IMachine **aMachine) { CheckComArgOutSafeArrayPointerValid(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComObjPtr machine; HRESULT rc = findMachine(Guid(aId), true /* setError */, &machine); /* the below will set *aMachine to NULL if machine is null */ machine.queryInterfaceTo(aMachine); return rc; } /** @note Locks this object for reading, then some machine objects for reading. */ STDMETHODIMP VirtualBox::FindMachine(IN_BSTR aName, IMachine **aMachine) { LogFlowThisFuncEnter(); LogFlowThisFunc(("aName=\"%ls\", aMachine={%p}\n", aName, aMachine)); CheckComArgStrNotEmptyOrNull(aName); CheckComArgOutSafeArrayPointerValid(aMachine); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* start with not found */ ComObjPtr pMachineFound; AutoReadLock al(m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (MachinesOList::iterator it = m->ollMachines.begin(); it != m->ollMachines.end(); ++it) { ComObjPtr &pMachine2 = *it; AutoLimitedCaller machCaller(pMachine2); AssertComRC(machCaller.rc()); /* skip inaccessible machines */ if (machCaller.state() == Machine::Ready) { AutoReadLock machLock(pMachine2 COMMA_LOCKVAL_SRC_POS); if (pMachine2->getName() == aName) { pMachineFound = pMachine2; break; } } } /* this will set (*machine) to NULL if machineObj is null */ pMachineFound.queryInterfaceTo(aMachine); HRESULT rc = pMachineFound ? S_OK : setError(VBOX_E_OBJECT_NOT_FOUND, tr("Could not find a registered machine named '%ls'"), aName); LogFlowThisFunc(("aName=\"%ls\", aMachine=%p, rc=%08X\n", aName, *aMachine, rc)); LogFlowThisFuncLeave(); return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::UnregisterMachine(IN_BSTR aId, IMachine **aMachine) { Guid id(aId); if (id.isEmpty()) return E_INVALIDARG; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); // find machine from the given ID ComObjPtr pMachine; HRESULT rc = findMachine(id, true /* setError */, &pMachine); if (FAILED(rc)) return rc; // trySetRegistered needs VirtualBox object write lock AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); rc = pMachine->trySetRegistered(FALSE); if (FAILED(rc)) return rc; /* remove from the collection of registered machines */ m->ollMachines.removeChild(pMachine); /* save the global registry */ rc = saveSettings(); /* return the unregistered machine to the caller */ pMachine.queryInterfaceTo(aMachine); /* fire an event */ onMachineRegistered(id, FALSE); return rc; } STDMETHODIMP VirtualBox::CreateHardDisk(IN_BSTR aFormat, IN_BSTR aLocation, IMedium **aHardDisk) { CheckComArgOutPointerValid(aHardDisk); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* we don't access non-const data members so no need to lock */ Bstr format = aFormat; if (format.isEmpty()) format = getDefaultHardDiskFormat(); HRESULT rc = E_FAIL; bool fNeedsSaveSettings = false; ComObjPtr hardDisk; hardDisk.createObject(); rc = hardDisk->init(this, format.raw(), aLocation, &fNeedsSaveSettings); if (SUCCEEDED(rc)) hardDisk.queryInterfaceTo(aHardDisk); if (fNeedsSaveSettings) { AutoWriteLock vboxlock(this COMMA_LOCKVAL_SRC_POS); saveSettings(); } return rc; } STDMETHODIMP VirtualBox::OpenHardDisk(IN_BSTR aLocation, AccessMode_T accessMode, BOOL aSetImageId, IN_BSTR aImageId, BOOL aSetParentId, IN_BSTR aParentId, IMedium **aHardDisk) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aHardDisk); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* we don't access non-const data members so no need to lock */ HRESULT rc = E_FAIL; ComObjPtr hardDisk; hardDisk.createObject(); Guid imageId, parentId; if (aSetImageId) { imageId = Guid(aImageId); if (imageId.isEmpty()) return setError(E_INVALIDARG, tr("Argument %s is empty"), "aImageId"); } if (aSetParentId) parentId = Guid(aParentId); rc = hardDisk->init(this, aLocation, (accessMode == AccessMode_ReadWrite) ? Medium::OpenReadWrite : Medium::OpenReadOnly, DeviceType_HardDisk, aSetImageId, imageId, aSetParentId, parentId); if (SUCCEEDED(rc)) { bool fNeedsSaveSettings = false; { AutoWriteLock treeLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); rc = registerHardDisk(hardDisk, &fNeedsSaveSettings); } /* Note that it's important to call uninit() on failure to register * because the differencing hard disk would have been already associated * with the parent and this association needs to be broken. */ if (SUCCEEDED(rc)) hardDisk.queryInterfaceTo(aHardDisk); else hardDisk->uninit(); if (fNeedsSaveSettings) { AutoWriteLock vboxlock(this COMMA_LOCKVAL_SRC_POS); saveSettings(); } } return rc; } STDMETHODIMP VirtualBox::GetHardDisk(IN_BSTR aId, IMedium **aHardDisk) { CheckComArgOutSafeArrayPointerValid(aHardDisk); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aId); ComObjPtr hardDisk; HRESULT rc = findHardDisk(&id, NULL, true /* setError */, &hardDisk); /* the below will set *aHardDisk to NULL if hardDisk is null */ hardDisk.queryInterfaceTo(aHardDisk); return rc; } STDMETHODIMP VirtualBox::FindHardDisk(IN_BSTR aLocation, IMedium **aHardDisk) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aHardDisk); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComObjPtr hardDisk; HRESULT rc = findHardDisk(NULL, aLocation, true /* setError */, &hardDisk); /* the below will set *aHardDisk to NULL if hardDisk is null */ hardDisk.queryInterfaceTo(aHardDisk); return rc; } /** @note Doesn't lock anything. */ STDMETHODIMP VirtualBox::OpenDVDImage(IN_BSTR aLocation, IN_BSTR aId, IMedium **aDVDImage) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aDVDImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = VBOX_E_FILE_ERROR; Guid id(aId); /* generate an UUID if not specified */ if (id.isEmpty()) id.create(); ComObjPtr image; image.createObject(); rc = image->init(this, aLocation, Medium::OpenReadOnly, DeviceType_DVD, true, id, false, Guid()); if (SUCCEEDED(rc)) { AutoWriteLock treeLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); bool fNeedsSaveSettings = false; rc = registerImage(image, DeviceType_DVD, &fNeedsSaveSettings); treeLock.release(); if (SUCCEEDED(rc)) image.queryInterfaceTo(aDVDImage); if (fNeedsSaveSettings) { AutoWriteLock vboxlock(this COMMA_LOCKVAL_SRC_POS); saveSettings(); } } return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::GetDVDImage(IN_BSTR aId, IMedium **aDVDImage) { CheckComArgOutSafeArrayPointerValid(aDVDImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aId); ComObjPtr image; HRESULT rc = findDVDImage(&id, NULL, true /* setError */, &image); /* the below will set *aDVDImage to NULL if image is null */ image.queryInterfaceTo(aDVDImage); return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::FindDVDImage(IN_BSTR aLocation, IMedium **aDVDImage) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aDVDImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComObjPtr image; HRESULT rc = findDVDImage(NULL, aLocation, true /* setError */, &image); /* the below will set *aDVDImage to NULL if dvd is null */ image.queryInterfaceTo(aDVDImage); return rc; } /** @note Doesn't lock anything. */ STDMETHODIMP VirtualBox::OpenFloppyImage(IN_BSTR aLocation, IN_BSTR aId, IMedium **aFloppyImage) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aFloppyImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = VBOX_E_FILE_ERROR; Guid id(aId); /* generate an UUID if not specified */ if (id.isEmpty()) id.create(); ComObjPtr image; image.createObject(); rc = image->init(this, aLocation, Medium::OpenReadWrite, DeviceType_Floppy, true, id, false, Guid()); if (SUCCEEDED(rc)) { AutoWriteLock treeLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); bool fNeedsSaveSettings = false; rc = registerImage(image, DeviceType_Floppy, &fNeedsSaveSettings); treeLock.release(); if (SUCCEEDED(rc)) image.queryInterfaceTo(aFloppyImage); if (fNeedsSaveSettings) { AutoWriteLock vboxlock(this COMMA_LOCKVAL_SRC_POS); saveSettings(); } } return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::GetFloppyImage(IN_BSTR aId, IMedium **aFloppyImage) { CheckComArgOutSafeArrayPointerValid(aFloppyImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aId); ComObjPtr image; HRESULT rc = findFloppyImage(&id, NULL, true /* setError */, &image); /* the below will set *aFloppyImage to NULL if image is null */ image.queryInterfaceTo(aFloppyImage); return rc; } /** @note Locks objects! */ STDMETHODIMP VirtualBox::FindFloppyImage(IN_BSTR aLocation, IMedium **aFloppyImage) { CheckComArgStrNotEmptyOrNull(aLocation); CheckComArgOutSafeArrayPointerValid(aFloppyImage); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComObjPtr image; HRESULT rc = findFloppyImage(NULL, aLocation, true /* setError */, &image); /* the below will set *aFloppyImage to NULL if img is null */ image.queryInterfaceTo(aFloppyImage); return rc; } /** @note Locks this object for reading. */ STDMETHODIMP VirtualBox::GetGuestOSType(IN_BSTR aId, IGuestOSType **aType) { /* Old ID to new ID conversion table. See r39691 for a source */ static const wchar_t *kOldNewIDs[] = { L"unknown", L"Other", L"win31", L"Windows31", L"win95", L"Windows95", L"win98", L"Windows98", L"winme", L"WindowsMe", L"winnt4", L"WindowsNT4", L"win2k", L"Windows2000", L"winxp", L"WindowsXP", L"win2k3", L"Windows2003", L"winvista", L"WindowsVista", L"win2k8", L"Windows2008", L"ecs", L"OS2eCS", L"fedoracore", L"Fedora", /* the rest is covered by the case-insensitive comparison */ }; CheckComArgNotNull(aType); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* first, look for a substitution */ Bstr id = aId; for (size_t i = 0; i < RT_ELEMENTS(kOldNewIDs) / 2; i += 2) { if (id == kOldNewIDs[i]) { id = kOldNewIDs[i + 1]; break; } } *aType = NULL; AutoReadLock alock(m->ollGuestOSTypes.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (GuestOSTypesOList::iterator it = m->ollGuestOSTypes.begin(); it != m->ollGuestOSTypes.end(); ++it) { const Bstr &typeId = (*it)->id(); AssertMsg(!typeId.isEmpty(), ("ID must not be NULL")); if (typeId.compare(id, Bstr::CaseInsensitive) == 0) { (*it).queryInterfaceTo(aType); break; } } return (*aType) ? S_OK : setError(E_INVALIDARG, tr("'%ls' is not a valid Guest OS type"), aId); } STDMETHODIMP VirtualBox::CreateSharedFolder(IN_BSTR aName, IN_BSTR aHostPath, BOOL /* aWritable */) { CheckComArgStrNotEmptyOrNull(aName); CheckComArgStrNotEmptyOrNull(aHostPath); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); return setError(E_NOTIMPL, "Not yet implemented"); } STDMETHODIMP VirtualBox::RemoveSharedFolder(IN_BSTR aName) { CheckComArgStrNotEmptyOrNull(aName); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); return setError(E_NOTIMPL, "Not yet implemented"); } /** * @note Locks this object for reading. */ STDMETHODIMP VirtualBox::GetExtraDataKeys(ComSafeArrayOut(BSTR, aKeys)) { using namespace settings; if (ComSafeArrayOutIsNull(aKeys)) return E_POINTER; AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS); com::SafeArray saKeys(m->pMainConfigFile->mapExtraDataItems.size()); int i = 0; for (ExtraDataItemsMap::const_iterator it = m->pMainConfigFile->mapExtraDataItems.begin(); it != m->pMainConfigFile->mapExtraDataItems.end(); ++it, ++i) { const Utf8Str &strName = it->first; // the key strName.cloneTo(&saKeys[i]); } saKeys.detachTo(ComSafeArrayOutArg(aKeys)); return S_OK; } /** * @note Locks this object for reading. */ STDMETHODIMP VirtualBox::GetExtraData(IN_BSTR aKey, BSTR *aValue) { CheckComArgStrNotEmptyOrNull(aKey); CheckComArgNotNull(aValue); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* start with nothing found */ Utf8Str strKey(aKey); Bstr bstrResult; settings::ExtraDataItemsMap::const_iterator it = m->pMainConfigFile->mapExtraDataItems.find(strKey); if (it != m->pMainConfigFile->mapExtraDataItems.end()) // found: bstrResult = it->second; // source is a Utf8Str /* return the result to caller (may be empty) */ bstrResult.cloneTo(aValue); return S_OK; } /** * @note Locks this object for writing. */ STDMETHODIMP VirtualBox::SetExtraData(IN_BSTR aKey, IN_BSTR aValue) { CheckComArgStrNotEmptyOrNull(aKey); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Utf8Str strKey(aKey); Utf8Str strValue(aValue); Utf8Str strOldValue; // empty // locking note: we only hold the read lock briefly to look up the old value, // then release it and call the onExtraCanChange callbacks. There is a small // chance of a race insofar as the callback might be called twice if two callers // change the same key at the same time, but that's a much better solution // than the deadlock we had here before. The actual changing of the extradata // is then performed under the write lock and race-free. // look up the old value first; if nothing's changed then we need not do anything { AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS); // hold read lock only while looking up settings::ExtraDataItemsMap::const_iterator it = m->pMainConfigFile->mapExtraDataItems.find(strKey); if (it != m->pMainConfigFile->mapExtraDataItems.end()) strOldValue = it->second; } bool fChanged; if ((fChanged = (strOldValue != strValue))) { // ask for permission from all listeners outside the locks; // onExtraDataCanChange() only briefly requests the VirtualBox // lock to copy the list of callbacks to invoke Bstr error; Bstr bstrValue(aValue); if (!onExtraDataCanChange(Guid::Empty, aKey, bstrValue, error)) { const char *sep = error.isEmpty() ? "" : ": "; CBSTR err = error.raw(); LogWarningFunc(("Someone vetoed! Change refused%s%ls\n", sep, err)); return setError(E_ACCESSDENIED, tr("Could not set extra data because someone refused the requested change of '%ls' to '%ls'%s%ls"), aKey, bstrValue.raw(), sep, err); } // data is changing and change not vetoed: then write it out under the lock AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); if (strValue.isEmpty()) m->pMainConfigFile->mapExtraDataItems.erase(strKey); else m->pMainConfigFile->mapExtraDataItems[strKey] = strValue; // creates a new key if needed /* save settings on success */ HRESULT rc = saveSettings(); if (FAILED(rc)) return rc; } // fire notification outside the lock if (fChanged) onExtraDataChange(Guid::Empty, aKey, aValue); return S_OK; } /** * @note Locks objects! */ STDMETHODIMP VirtualBox::OpenSession(ISession *aSession, IN_BSTR aMachineId) { CheckComArgNotNull(aSession); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aMachineId); ComObjPtr machine; HRESULT rc = findMachine(id, true /* setError */, &machine); if (FAILED(rc)) return rc; /* check the session state */ SessionState_T state; rc = aSession->COMGETTER(State)(&state); if (FAILED(rc)) return rc; if (state != SessionState_Closed) return setError(VBOX_E_INVALID_OBJECT_STATE, tr("The given session is already open or being opened")); /* get the IInternalSessionControl interface */ ComPtr control = aSession; ComAssertMsgRet(!!control, ("No IInternalSessionControl interface"), E_INVALIDARG); rc = machine->openSession(control); if (SUCCEEDED(rc)) { /* * tell the client watcher thread to update the set of * machines that have open sessions */ updateClientWatcher(); /* fire an event */ onSessionStateChange(id, SessionState_Open); } return rc; } /** * @note Locks objects! */ STDMETHODIMP VirtualBox::OpenRemoteSession(ISession *aSession, IN_BSTR aMachineId, IN_BSTR aType, IN_BSTR aEnvironment, IProgress **aProgress) { LogRel(("remotesession=%s\n", Utf8Str(aMachineId).c_str())); CheckComArgStrNotEmptyOrNull(aMachineId); CheckComArgNotNull(aSession); CheckComArgStrNotEmptyOrNull(aType); CheckComArgOutSafeArrayPointerValid(aProgress); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aMachineId); ComObjPtr machine; HRESULT rc = findMachine(id, true /* setError */, &machine); if (FAILED(rc)) return rc; /* check the session state */ SessionState_T state; rc = aSession->COMGETTER(State)(&state); if (FAILED(rc)) return rc; if (state != SessionState_Closed) return setError(VBOX_E_INVALID_OBJECT_STATE, tr("The given session is already open or being opened")); /* get the IInternalSessionControl interface */ ComPtr control = aSession; ComAssertMsgRet(!!control, ("No IInternalSessionControl interface"), E_INVALIDARG); /* create a progress object */ ComObjPtr progress; progress.createObject(); progress->init(this, static_cast (machine), Bstr(tr("Spawning session")), FALSE /* aCancelable */); rc = machine->openRemoteSession(control, aType, aEnvironment, progress); if (SUCCEEDED(rc)) { progress.queryInterfaceTo(aProgress); /* signal the client watcher thread */ updateClientWatcher(); /* fire an event */ onSessionStateChange(id, SessionState_Spawning); } return rc; } /** * @note Locks objects! */ STDMETHODIMP VirtualBox::OpenExistingSession(ISession *aSession, IN_BSTR aMachineId) { CheckComArgNotNull(aSession); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Guid id(aMachineId); ComObjPtr machine; HRESULT rc = findMachine(id, true /* setError */, &machine); if (FAILED(rc)) return rc; /* check the session state */ SessionState_T state; rc = aSession->COMGETTER(State)(&state); if (FAILED(rc)) return rc; if (state != SessionState_Closed) return setError(VBOX_E_INVALID_OBJECT_STATE, tr("The given session is already open or being opened")); /* get the IInternalSessionControl interface */ ComPtr control = aSession; ComAssertMsgRet(!!control, ("No IInternalSessionControl interface"), E_INVALIDARG); rc = machine->openExistingSession(control); return rc; } /** * @note Locks this object for writing. */ STDMETHODIMP VirtualBox::RegisterCallback(IVirtualBoxCallback *aCallback) { LogFlowThisFunc(("aCallback=%p\n", aCallback)); CheckComArgNotNull(aCallback); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* Query the interface we associate with IVirtualBoxCallback as the caller might've been compiled against a different SDK. */ void *pvCallback; HRESULT hrc = aCallback->QueryInterface(COM_IIDOF(IVirtualBoxCallback), &pvCallback); if (FAILED(hrc)) return setError(hrc, tr("Incompatible IVirtualBoxCallback interface - version mismatch?")); aCallback = (IVirtualBoxCallback *)pvCallback; AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); m->llCallbacks.push_back(CallbackList::value_type(aCallback)); aCallback->Release(); return S_OK; } /** * @note Locks this object for writing. */ STDMETHODIMP VirtualBox::UnregisterCallback(IVirtualBoxCallback *aCallback) { CheckComArgNotNull(aCallback); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = S_OK; AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); CallbackList::iterator it; it = std::find(m->llCallbacks.begin(), m->llCallbacks.end(), CallbackList::value_type(aCallback)); if (it == m->llCallbacks.end()) rc = E_INVALIDARG; else m->llCallbacks.erase(it); LogFlowThisFunc(("aCallback=%p, rc=%08X\n", aCallback, rc)); return rc; } STDMETHODIMP VirtualBox::WaitForPropertyChange(IN_BSTR /* aWhat */, ULONG /* aTimeout */, BSTR * /* aChanged */, BSTR * /* aValues */) { ReturnComNotImplemented(); } // public methods only for internal purposes ///////////////////////////////////////////////////////////////////////////// #ifdef DEBUG void VirtualBox::dumpAllBackRefs() { { AutoReadLock al(m->ollHardDisks.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (MediaList::const_iterator mt = m->ollHardDisks.begin(); mt != m->ollHardDisks.end(); ++mt) { ComObjPtr pMedium = *mt; pMedium->dumpBackRefs(); } } { AutoReadLock al(m->ollDVDImages.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (MediaList::const_iterator mt = m->ollDVDImages.begin(); mt != m->ollDVDImages.end(); ++mt) { ComObjPtr pMedium = *mt; pMedium->dumpBackRefs(); } } } #endif /** * Posts an event to the event queue that is processed asynchronously * on a dedicated thread. * * Posting events to the dedicated event queue is useful to perform secondary * actions outside any object locks -- for example, to iterate over a list * of callbacks and inform them about some change caused by some object's * method call. * * @param event event to post * (must be allocated using |new|, will be deleted automatically * by the event thread after processing) * * @note Doesn't lock any object. */ HRESULT VirtualBox::postEvent(Event *event) { AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); if (autoCaller.state() != Ready) { LogWarningFunc(("VirtualBox has been uninitialized (state=%d), the event is discarded!\n", autoCaller.state())); return S_OK; } AssertReturn(event, E_FAIL); AssertReturn(m->pAsyncEventQ, E_FAIL); if (m->pAsyncEventQ->postEvent(event)) return S_OK; return E_FAIL; } /** * Adds a progress to the global collection of pending operations. * Usually gets called upon progress object initialization. * * @param aProgress Operation to add to the collection. * * @note Doesn't lock objects. */ HRESULT VirtualBox::addProgress(IProgress *aProgress) { CheckComArgNotNull(aProgress); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); Bstr id; HRESULT rc = aProgress->COMGETTER(Id)(id.asOutParam()); AssertComRCReturnRC(rc); /* protect mProgressOperations */ AutoWriteLock safeLock(m->mtxProgressOperations COMMA_LOCKVAL_SRC_POS); m->mapProgressOperations.insert(ProgressMap::value_type(Guid(id), aProgress)); return S_OK; } /** * Removes the progress from the global collection of pending operations. * Usually gets called upon progress completion. * * @param aId UUID of the progress operation to remove * * @note Doesn't lock objects. */ HRESULT VirtualBox::removeProgress(IN_GUID aId) { AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComPtr progress; /* protect mProgressOperations */ AutoWriteLock safeLock(m->mtxProgressOperations COMMA_LOCKVAL_SRC_POS); size_t cnt = m->mapProgressOperations.erase(aId); Assert(cnt == 1); NOREF(cnt); return S_OK; } #ifdef RT_OS_WINDOWS struct StartSVCHelperClientData { ComObjPtr that; ComObjPtr progress; bool privileged; VirtualBox::SVCHelperClientFunc func; void *user; }; /** * Helper method that starts a worker thread that: * - creates a pipe communication channel using SVCHlpClient; * - starts an SVC Helper process that will inherit this channel; * - executes the supplied function by passing it the created SVCHlpClient * and opened instance to communicate to the Helper process and the given * Progress object. * * The user function is supposed to communicate to the helper process * using the \a aClient argument to do the requested job and optionally expose * the progress through the \a aProgress object. The user function should never * call notifyComplete() on it: this will be done automatically using the * result code returned by the function. * * Before the user function is started, the communication channel passed to * the \a aClient argument is fully set up, the function should start using * its write() and read() methods directly. * * The \a aVrc parameter of the user function may be used to return an error * code if it is related to communication errors (for example, returned by * the SVCHlpClient members when they fail). In this case, the correct error * message using this value will be reported to the caller. Note that the * value of \a aVrc is inspected only if the user function itself returns * success. * * If a failure happens anywhere before the user function would be normally * called, it will be called anyway in special "cleanup only" mode indicated * by \a aClient, \a aProgress and \aVrc arguments set to NULL. In this mode, * all the function is supposed to do is to cleanup its aUser argument if * necessary (it's assumed that the ownership of this argument is passed to * the user function once #startSVCHelperClient() returns a success, thus * making it responsible for the cleanup). * * After the user function returns, the thread will send the SVCHlpMsg::Null * message to indicate a process termination. * * @param aPrivileged |true| to start the SVC Helper process as a privileged * user that can perform administrative tasks * @param aFunc user function to run * @param aUser argument to the user function * @param aProgress progress object that will track operation completion * * @note aPrivileged is currently ignored (due to some unsolved problems in * Vista) and the process will be started as a normal (unprivileged) * process. * * @note Doesn't lock anything. */ HRESULT VirtualBox::startSVCHelperClient(bool aPrivileged, SVCHelperClientFunc aFunc, void *aUser, Progress *aProgress) { AssertReturn(aFunc, E_POINTER); AssertReturn(aProgress, E_POINTER); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); /* create the SVCHelperClientThread() argument */ std::auto_ptr d(new StartSVCHelperClientData()); AssertReturn(d.get(), E_OUTOFMEMORY); d->that = this; d->progress = aProgress; d->privileged = aPrivileged; d->func = aFunc; d->user = aUser; RTTHREAD tid = NIL_RTTHREAD; int vrc = RTThreadCreate(&tid, SVCHelperClientThread, static_cast (d.get()), 0, RTTHREADTYPE_MAIN_WORKER, RTTHREADFLAGS_WAITABLE, "SVCHelper"); ComAssertMsgRCRet(vrc, ("Could not create SVCHelper thread (%Rrc)", vrc), E_FAIL); /* d is now owned by SVCHelperClientThread(), so release it */ d.release(); return S_OK; } /** * Worker thread for startSVCHelperClient(). */ /* static */ DECLCALLBACK(int) VirtualBox::SVCHelperClientThread(RTTHREAD aThread, void *aUser) { LogFlowFuncEnter(); std::auto_ptr d(static_cast (aUser)); HRESULT rc = S_OK; bool userFuncCalled = false; do { AssertBreakStmt(d.get(), rc = E_POINTER); AssertReturn(!d->progress.isNull(), E_POINTER); /* protect VirtualBox from uninitialization */ AutoCaller autoCaller(d->that); if (!autoCaller.isOk()) { /* it's too late */ rc = autoCaller.rc(); break; } int vrc = VINF_SUCCESS; Guid id; id.create(); SVCHlpClient client; vrc = client.create(Utf8StrFmt("VirtualBox\\SVCHelper\\{%RTuuid}", id.raw()).c_str()); if (RT_FAILURE(vrc)) { rc = setError(E_FAIL, tr("Could not create the communication channel (%Rrc)"), vrc); break; } /* get the path to the executable */ char exePathBuf[RTPATH_MAX]; char *exePath = RTProcGetExecutableName(exePathBuf, RTPATH_MAX); ComAssertBreak(exePath, E_FAIL); Utf8Str argsStr = Utf8StrFmt("/Helper %s", client.name().raw()); LogFlowFunc(("Starting '\"%s\" %s'...\n", exePath, argsStr.raw())); RTPROCESS pid = NIL_RTPROCESS; if (d->privileged) { /* Attempt to start a privileged process using the Run As dialog */ Bstr file = exePath; Bstr parameters = argsStr; SHELLEXECUTEINFO shExecInfo; shExecInfo.cbSize = sizeof(SHELLEXECUTEINFO); shExecInfo.fMask = NULL; shExecInfo.hwnd = NULL; shExecInfo.lpVerb = L"runas"; shExecInfo.lpFile = file; shExecInfo.lpParameters = parameters; shExecInfo.lpDirectory = NULL; shExecInfo.nShow = SW_NORMAL; shExecInfo.hInstApp = NULL; if (!ShellExecuteEx(&shExecInfo)) { int vrc2 = RTErrConvertFromWin32(GetLastError()); /* hide excessive details in case of a frequent error * (pressing the Cancel button to close the Run As dialog) */ if (vrc2 == VERR_CANCELLED) rc = setError(E_FAIL, tr("Operation cancelled by the user")); else rc = setError(E_FAIL, tr("Could not launch a privileged process '%s' (%Rrc)"), exePath, vrc2); break; } } else { const char *args[] = { exePath, "/Helper", client.name().c_str(), 0 }; vrc = RTProcCreate(exePath, args, RTENV_DEFAULT, 0, &pid); if (RT_FAILURE(vrc)) { rc = setError(E_FAIL, tr("Could not launch a process '%s' (%Rrc)"), exePath, vrc); break; } } /* wait for the client to connect */ vrc = client.connect(); if (RT_SUCCESS(vrc)) { /* start the user supplied function */ rc = d->func(&client, d->progress, d->user, &vrc); userFuncCalled = true; } /* send the termination signal to the process anyway */ { int vrc2 = client.write(SVCHlpMsg::Null); if (RT_SUCCESS(vrc)) vrc = vrc2; } if (SUCCEEDED(rc) && RT_FAILURE(vrc)) { rc = setError(E_FAIL, tr("Could not operate the communication channel (%Rrc)"), vrc); break; } } while (0); if (FAILED(rc) && !userFuncCalled) { /* call the user function in the "cleanup only" mode * to let it free resources passed to in aUser */ d->func(NULL, NULL, d->user, NULL); } d->progress->notifyComplete(rc); LogFlowFuncLeave(); return 0; } #endif /* RT_OS_WINDOWS */ /** * Sends a signal to the client watcher thread to rescan the set of machines * that have open sessions. * * @note Doesn't lock anything. */ void VirtualBox::updateClientWatcher() { AutoCaller autoCaller(this); AssertComRCReturnVoid(autoCaller.rc()); AssertReturnVoid(m->threadClientWatcher != NIL_RTTHREAD); /* sent an update request */ #if defined(RT_OS_WINDOWS) ::SetEvent(m->updateReq); #elif defined(RT_OS_OS2) RTSemEventSignal(m->updateReq); #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) RTSemEventSignal(m->updateReq); #else # error "Port me!" #endif } /** * Adds the given child process ID to the list of processes to be reaped. * This call should be followed by #updateClientWatcher() to take the effect. */ void VirtualBox::addProcessToReap(RTPROCESS pid) { AutoCaller autoCaller(this); AssertComRCReturnVoid(autoCaller.rc()); /// @todo (dmik) Win32? #ifndef RT_OS_WINDOWS AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); m->llProcesses.push_back(pid); #endif } /** * Removes a dead callback. * @param aCallback The reference to the registered callback interface. */ void VirtualBox::removeDeadCallback(const ComPtr &aCallback) { /* find and delete */ AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS); CallbackList::iterator it = std::find(m->llCallbacks.begin(), m->llCallbacks.end(), CallbackList::value_type(aCallback)); if (it != m->llCallbacks.end()) { LogRel(("Removing dead callback: %p\n", &*it)); m->llCallbacks.erase(it); } } /** Event for onMachineStateChange(), onMachineDataChange(), onMachineRegistered() */ struct MachineEvent : public VirtualBox::CallbackEvent { MachineEvent(VirtualBox *aVB, const Guid &aId) : CallbackEvent(aVB, VirtualBoxCallbackRegistration::kOnMachineDataChange), id(aId) {} MachineEvent(VirtualBox *aVB, const Guid &aId, MachineState_T aState) : CallbackEvent(aVB, VirtualBoxCallbackRegistration::kOnMachineStateChange), id(aId) , state(aState) {} MachineEvent(VirtualBox *aVB, const Guid &aId, BOOL aRegistered) : CallbackEvent(aVB, VirtualBoxCallbackRegistration::kOnMachineRegistered), id(aId) , registered(aRegistered) {} HRESULT handleCallback(const ComPtr &aCallback) { switch (mWhat) { case VirtualBoxCallbackRegistration::kOnMachineDataChange: LogFlow(("OnMachineDataChange: id={%RTuuid}\n", id.ptr())); return aCallback->OnMachineDataChange(id.toUtf16()); case VirtualBoxCallbackRegistration::kOnMachineStateChange: LogFlow(("OnMachineStateChange: id={%RTuuid}, state=%d\n", id.ptr(), state)); return aCallback->OnMachineStateChange(id.toUtf16(), state); case VirtualBoxCallbackRegistration::kOnMachineRegistered: LogFlow(("OnMachineRegistered: id={%RTuuid}, registered=%d\n", id.ptr(), registered)); return aCallback->OnMachineRegistered(id.toUtf16(), registered); default: AssertFailedReturn(S_OK); } } Guid id; MachineState_T state; BOOL registered; }; /** * @note Doesn't lock any object. */ void VirtualBox::onMachineStateChange(const Guid &aId, MachineState_T aState) { postEvent(new MachineEvent(this, aId, aState)); } /** * @note Doesn't lock any object. */ void VirtualBox::onMachineDataChange(const Guid &aId) { postEvent(new MachineEvent(this, aId)); } /** * @note Locks this object for reading. */ BOOL VirtualBox::onExtraDataCanChange(const Guid &aId, IN_BSTR aKey, IN_BSTR aValue, Bstr &aError) { LogFlowThisFunc(("machine={%s} aKey={%ls} aValue={%ls}\n", aId.toString().raw(), aKey, aValue)); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); CallbackList list; { AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS); list = m->llCallbacks; } BOOL allowChange = TRUE; CallbackList::iterator it = list.begin(); Bstr id = aId.toUtf16(); while ((it != list.end()) && allowChange) { if (it->isWanted(VirtualBoxCallbackRegistration::kOnExtraDataCanChange)) { HRESULT rc = it->ptrICb->OnExtraDataCanChange(id, aKey, aValue, aError.asOutParam(), &allowChange); if (FAILED(rc)) { if (rc == VBOX_E_DONT_CALL_AGAIN) { /* Have to update the original. */ AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS); CallbackList::iterator itOrg; itOrg = std::find(m->llCallbacks.begin(), m->llCallbacks.end(), CallbackList::value_type(it->ptrICb)); if (itOrg != m->llCallbacks.end()) itOrg->setDontCallAgain(VirtualBoxCallbackRegistration::kOnExtraDataCanChange); } else if (FAILED_DEAD_INTERFACE(rc)) removeDeadCallback(it->ptrICb); /* if a call to this method fails for some reason (for ex., because * the other side is dead), we ensure allowChange stays true * (MS COM RPC implementation seems to zero all output vars before * issuing an IPC call or after a failure, so it's essential * there) */ allowChange = TRUE; } } ++it; } LogFlowThisFunc(("allowChange=%RTbool\n", allowChange)); return allowChange; } /** Event for onExtraDataChange() */ struct ExtraDataEvent : public VirtualBox::CallbackEvent { ExtraDataEvent(VirtualBox *aVB, const Guid &aMachineId, IN_BSTR aKey, IN_BSTR aVal) : CallbackEvent(aVB, VirtualBoxCallbackRegistration::kOnExtraDataChange) , machineId(aMachineId), key(aKey), val(aVal) {} HRESULT handleCallback(const ComPtr &aCallback) { LogFlow(("OnExtraDataChange: machineId={%RTuuid}, key='%ls', val='%ls'\n", machineId.ptr(), key.raw(), val.raw())); return aCallback->OnExtraDataChange(machineId.toUtf16(), key, val); } Guid machineId; Bstr key, val; }; /** * @note Doesn't lock any object. */ void VirtualBox::onExtraDataChange(const Guid &aId, IN_BSTR aKey, IN_BSTR aValue) { postEvent(new ExtraDataEvent(this, aId, aKey, aValue)); } /** * @note Doesn't lock any object. */ void VirtualBox::onMachineRegistered(const Guid &aId, BOOL aRegistered) { postEvent(new MachineEvent(this, aId, aRegistered)); } /** Event for onSessionStateChange() */ struct SessionEvent : public VirtualBox::CallbackEvent { SessionEvent(VirtualBox *aVB, const Guid &aMachineId, SessionState_T aState) : CallbackEvent(aVB, VirtualBoxCallbackRegistration::kOnSessionStateChange) , machineId(aMachineId), sessionState(aState) {} HRESULT handleCallback(const ComPtr &aCallback) { LogFlow(("OnSessionStateChange: machineId={%RTuuid}, sessionState=%d\n", machineId.ptr(), sessionState)); return aCallback->OnSessionStateChange(machineId.toUtf16(), sessionState); } Guid machineId; SessionState_T sessionState; }; /** * @note Doesn't lock any object. */ void VirtualBox::onSessionStateChange(const Guid &aId, SessionState_T aState) { postEvent(new SessionEvent(this, aId, aState)); } /** Event for onSnapshotTaken(), onSnapshotDeleted() and onSnapshotChange() */ struct SnapshotEvent : public VirtualBox::CallbackEvent { SnapshotEvent(VirtualBox *aVB, const Guid &aMachineId, const Guid &aSnapshotId, VirtualBoxCallbackRegistration::CallbackBit aWhat) : CallbackEvent(aVB, aWhat) , machineId(aMachineId), snapshotId(aSnapshotId) {} HRESULT handleCallback(const ComPtr &aCallback) { Bstr mid = machineId.toUtf16(); Bstr sid = snapshotId.toUtf16(); switch (mWhat) { case VirtualBoxCallbackRegistration::kOnSnapshotTaken: LogFlow(("OnSnapshotTaken: machineId={%RTuuid}, snapshotId={%RTuuid}\n", machineId.ptr(), snapshotId.ptr())); return aCallback->OnSnapshotTaken(mid, sid); case VirtualBoxCallbackRegistration::kOnSnapshotDeleted: LogFlow(("OnSnapshotDeleted: machineId={%RTuuid}, snapshotId={%RTuuid}\n", machineId.ptr(), snapshotId.ptr())); return aCallback->OnSnapshotDeleted(mid, sid); case VirtualBoxCallbackRegistration::kOnSnapshotChange: LogFlow(("OnSnapshotChange: machineId={%RTuuid}, snapshotId={%RTuuid}\n", machineId.ptr(), snapshotId.ptr())); return aCallback->OnSnapshotChange(mid, sid); default: AssertFailedReturn(S_OK); } } Guid machineId; Guid snapshotId; }; /** * @note Doesn't lock any object. */ void VirtualBox::onSnapshotTaken(const Guid &aMachineId, const Guid &aSnapshotId) { postEvent(new SnapshotEvent(this, aMachineId, aSnapshotId, VirtualBoxCallbackRegistration::kOnSnapshotTaken)); } /** * @note Doesn't lock any object. */ void VirtualBox::onSnapshotDeleted(const Guid &aMachineId, const Guid &aSnapshotId) { postEvent(new SnapshotEvent(this, aMachineId, aSnapshotId, VirtualBoxCallbackRegistration::kOnSnapshotDeleted)); } /** * @note Doesn't lock any object. */ void VirtualBox::onSnapshotChange(const Guid &aMachineId, const Guid &aSnapshotId) { postEvent(new SnapshotEvent(this, aMachineId, aSnapshotId, VirtualBoxCallbackRegistration::kOnSnapshotChange)); } /** Event for onGuestPropertyChange() */ struct GuestPropertyEvent : public VirtualBox::CallbackEvent { GuestPropertyEvent(VirtualBox *aVBox, const Guid &aMachineId, IN_BSTR aName, IN_BSTR aValue, IN_BSTR aFlags) : CallbackEvent(aVBox, VirtualBoxCallbackRegistration::kOnGuestPropertyChange), machineId(aMachineId), name(aName), value(aValue), flags(aFlags) {} HRESULT handleCallback(const ComPtr &aCallback) { LogFlow(("OnGuestPropertyChange: machineId={%RTuuid}, name='%ls', value='%ls', flags='%ls'\n", machineId.ptr(), name.raw(), value.raw(), flags.raw())); return aCallback->OnGuestPropertyChange(machineId.toUtf16(), name, value, flags); } Guid machineId; Bstr name, value, flags; }; /** * @note Doesn't lock any object. */ void VirtualBox::onGuestPropertyChange(const Guid &aMachineId, IN_BSTR aName, IN_BSTR aValue, IN_BSTR aFlags) { postEvent(new GuestPropertyEvent(this, aMachineId, aName, aValue, aFlags)); } /** * @note Locks this object for reading. */ ComObjPtr VirtualBox::getUnknownOSType() { ComObjPtr type; AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), type); /* unknown type must always be the first */ ComAssertRet(m->ollGuestOSTypes.size() > 0, type); return m->ollGuestOSTypes.front(); } /** * Returns the list of opened machines (machines having direct sessions opened * by client processes) and optionally the list of direct session controls. * * @param aMachines Where to put opened machines (will be empty if none). * @param aControls Where to put direct session controls (optional). * * @note The returned lists contain smart pointers. So, clear it as soon as * it becomes no more necessary to release instances. * * @note It can be possible that a session machine from the list has been * already uninitialized, so do a usual AutoCaller/AutoReadLock sequence * when accessing unprotected data directly. * * @note Locks objects for reading. */ void VirtualBox::getOpenedMachines(SessionMachinesList &aMachines, InternalControlList *aControls /*= NULL*/) { AutoCaller autoCaller(this); AssertComRCReturnVoid(autoCaller.rc()); aMachines.clear(); if (aControls) aControls->clear(); AutoReadLock alock(m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (MachinesOList::iterator it = m->ollMachines.begin(); it != m->ollMachines.end(); ++it) { ComObjPtr sm; ComPtr ctl; if ((*it)->isSessionOpen(sm, &ctl)) { aMachines.push_back(sm); if (aControls) aControls->push_back(ctl); } } } /** * Searches for a Machine object with the given ID in the collection * of registered machines. * * @param id * ID of the machine * @param doSetError * if TRUE, the appropriate error info is set in case when the machine * is not found * @param machine * where to store the found machine object (can be NULL) * * @return * S_OK when found or VBOX_E_OBJECT_NOT_FOUND when not found * * @note Locks this object for reading. */ HRESULT VirtualBox::findMachine(const Guid &aId, bool aSetError, ComObjPtr *aMachine /* = NULL */) { HRESULT rc = VBOX_E_OBJECT_NOT_FOUND; AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); { AutoReadLock al(m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (MachinesOList::iterator it = m->ollMachines.begin(); it != m->ollMachines.end(); ++it) { ComObjPtr pMachine2 = *it; /* sanity */ AutoLimitedCaller machCaller(pMachine2); AssertComRC(machCaller.rc()); if (pMachine2->getId() == aId) { rc = S_OK; if (aMachine) *aMachine = pMachine2; break; } } } if (aSetError && FAILED(rc)) setError(VBOX_E_OBJECT_NOT_FOUND, tr("Could not find a registered machine with UUID {%RTuuid}"), aId.raw()); return rc; } /** * Searches for a Medium object with the given ID or location in the list of * registered hard disks. If both ID and location are specified, the first * object that matches either of them (not necessarily both) is returned. * * @param aId ID of the hard disk (unused when NULL). * @param aLocation Full location specification (unused NULL). * @param aSetError If @c true , the appropriate error info is set in case * when the hard disk is not found. * @param aHardDisk Where to store the found hard disk object (can be NULL). * * @return S_OK when found or E_INVALIDARG when not found. * * @note Locks the media tree for reading. */ HRESULT VirtualBox::findHardDisk(const Guid *aId, CBSTR aLocation, bool aSetError, ComObjPtr *aHardDisk /*= NULL*/) { AssertReturn(aId || aLocation, E_INVALIDARG); // we use the hard disks map, but it is protected by the // hard disk _list_ lock handle AutoReadLock alock(m->ollHardDisks.getLockHandle() COMMA_LOCKVAL_SRC_POS); /* first, look up by UUID in the map if UUID is provided */ if (aId) { HardDiskMap::const_iterator it = m->mapHardDisks.find(*aId); if (it != m->mapHardDisks.end()) { if (aHardDisk) *aHardDisk = (*it).second; return S_OK; } } /* then iterate and search by location */ int result = -1; if (aLocation) { Utf8Str location = aLocation; for (HardDiskMap::const_iterator it = m->mapHardDisks.begin(); it != m->mapHardDisks.end(); ++ it) { const ComObjPtr &hd = (*it).second; HRESULT rc = hd->compareLocationTo(location.c_str(), result); if (FAILED(rc)) return rc; if (result == 0) { if (aHardDisk) *aHardDisk = hd; break; } } } HRESULT rc = result == 0 ? S_OK : VBOX_E_OBJECT_NOT_FOUND; if (aSetError && result != 0) { if (aId) setError(rc, tr("Could not find a hard disk with UUID {%RTuuid} in the media registry ('%s')"), aId->raw(), m->strSettingsFilePath.raw()); else setError(rc, tr("Could not find a hard disk with location '%ls' in the media registry ('%s')"), aLocation, m->strSettingsFilePath.raw()); } return rc; } /** * Searches for a Medium object with the given ID or location in the list of * registered DVD images. If both ID and file path are specified, the first * object that matches either of them (not necessarily both) is returned. * * @param aId ID of the DVD image (unused when NULL). * @param aLocation Full path to the image file (unused when NULL). * @param aSetError If @c true, the appropriate error info is set in case when * the image is not found. * @param aImage Where to store the found image object (can be NULL). * * @return S_OK when found or E_INVALIDARG when not found. * * @note Locks the media tree for reading. */ HRESULT VirtualBox::findDVDImage(const Guid *aId, CBSTR aLocation, bool aSetError, ComObjPtr *aImage /* = NULL */) { AssertReturn(aId || aLocation, E_INVALIDARG); Utf8Str location; if (aLocation != NULL) { int vrc = calculateFullPath(Utf8Str(aLocation), location); if (RT_FAILURE(vrc)) return setError(VBOX_E_FILE_ERROR, tr("Invalid image file location '%ls' (%Rrc)"), aLocation, vrc); } AutoReadLock alock(m->ollDVDImages.getLockHandle() COMMA_LOCKVAL_SRC_POS); bool found = false; for (MediaList::const_iterator it = m->ollDVDImages.begin(); it != m->ollDVDImages.end(); ++ it) { /* no AutoCaller, registered image life time is bound to this */ AutoReadLock imageLock(*it COMMA_LOCKVAL_SRC_POS); found = (aId && (*it)->getId() == *aId) || (aLocation != NULL && RTPathCompare(location.c_str(), (*it)->getLocationFull().c_str() ) == 0); if (found) { if (aImage) *aImage = *it; break; } } HRESULT rc = found ? S_OK : VBOX_E_OBJECT_NOT_FOUND; if (aSetError && !found) { if (aId) setError(rc, tr("Could not find a CD/DVD image with UUID {%RTuuid} in the media registry ('%s')"), aId->raw(), m->strSettingsFilePath.raw()); else setError(rc, tr("Could not find a CD/DVD image with location '%ls' in the media registry ('%s')"), aLocation, m->strSettingsFilePath.raw()); } return rc; } /** * Searches for a Medium object with the given ID or location in the * collection of registered DVD images. If both ID and file path are specified, * the first object that matches either of them (not necessarily both) is * returned. * * @param aId ID of the DVD image (unused when NULL). * @param aLocation Full path to the image file (unused when NULL). * @param aSetError If @c true, the appropriate error info is set in case when * the image is not found. * @param aImage Where to store the found image object (can be NULL). * * @return S_OK when found or E_INVALIDARG when not found. * * @note Locks the media tree for reading. */ HRESULT VirtualBox::findFloppyImage(const Guid *aId, CBSTR aLocation, bool aSetError, ComObjPtr *aImage /* = NULL */) { AssertReturn(aId || aLocation, E_INVALIDARG); Utf8Str location; if (aLocation != NULL) { int vrc = calculateFullPath(Utf8Str(aLocation), location); if (RT_FAILURE(vrc)) return setError(VBOX_E_FILE_ERROR, tr("Invalid image file location '%ls' (%Rrc)"), aLocation, vrc); } AutoReadLock alock(m->ollFloppyImages.getLockHandle() COMMA_LOCKVAL_SRC_POS); bool found = false; for (MediaList::const_iterator it = m->ollFloppyImages.begin(); it != m->ollFloppyImages.end(); ++ it) { /* no AutoCaller, registered image life time is bound to this */ AutoReadLock imageLock(*it COMMA_LOCKVAL_SRC_POS); found = (aId && (*it)->getId() == *aId) || (aLocation != NULL && RTPathCompare(location.c_str(), (*it)->getLocationFull().c_str() ) == 0); if (found) { if (aImage) *aImage = *it; break; } } HRESULT rc = found ? S_OK : VBOX_E_OBJECT_NOT_FOUND; if (aSetError && !found) { if (aId) setError(rc, tr("Could not find a floppy image with UUID {%RTuuid} in the media registry ('%s')"), aId->raw(), m->strSettingsFilePath.raw()); else setError(rc, tr("Could not find a floppy image with location '%ls' in the media registry ('%s')"), aLocation, m->strSettingsFilePath.raw()); } return rc; } HRESULT VirtualBox::findGuestOSType(const Bstr &bstrOSType, GuestOSType*& pGuestOSType) { /* Look for a GuestOSType object */ AssertMsg(m->ollGuestOSTypes.size() != 0, ("Guest OS types array must be filled")); if (bstrOSType.isEmpty()) { pGuestOSType = NULL; return S_OK; } AutoReadLock alock(m->ollGuestOSTypes.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (GuestOSTypesOList::const_iterator it = m->ollGuestOSTypes.begin(); it != m->ollGuestOSTypes.end(); ++it) { if ((*it)->id() == bstrOSType) { pGuestOSType = *it; return S_OK; } } return setError(VBOX_E_OBJECT_NOT_FOUND, tr("Guest OS type '%ls' is invalid"), bstrOSType.raw()); } const ComObjPtr& VirtualBox::host() const { return m->pHost; } const ComObjPtr& VirtualBox::systemProperties() const { return m->pSystemProperties; } #ifdef VBOX_WITH_RESOURCE_USAGE_API const ComObjPtr& VirtualBox::performanceCollector() const { return m->pPerformanceCollector; } #endif /* VBOX_WITH_RESOURCE_USAGE_API */ /** * Returns the default machine folder from the system properties * with proper locking. * @return */ const Utf8Str& VirtualBox::getDefaultMachineFolder() const { AutoReadLock propsLock(m->pSystemProperties COMMA_LOCKVAL_SRC_POS); return m->pSystemProperties->m_strDefaultMachineFolder; } /** * Returns the default hard disk folder from the system properties * with proper locking. * @return */ const Utf8Str& VirtualBox::getDefaultHardDiskFolder() const { AutoReadLock propsLock(m->pSystemProperties COMMA_LOCKVAL_SRC_POS); return m->pSystemProperties->m_strDefaultHardDiskFolder; } /** * Returns the default hard disk format from the system properties * with proper locking. * @return */ const Utf8Str& VirtualBox::getDefaultHardDiskFormat() const { AutoReadLock propsLock(m->pSystemProperties COMMA_LOCKVAL_SRC_POS); return m->pSystemProperties->m_strDefaultHardDiskFormat; } const Utf8Str& VirtualBox::homeDir() const { return m->strHomeDir; } /** * Calculates the absolute path of the given path taking the VirtualBox home * directory as the current directory. * * @param aPath Path to calculate the absolute path for. * @param aResult Where to put the result (used only on success, can be the * same Utf8Str instance as passed in @a aPath). * @return IPRT result. * * @note Doesn't lock any object. */ int VirtualBox::calculateFullPath(const Utf8Str &strPath, Utf8Str &aResult) { AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), VERR_GENERAL_FAILURE); /* no need to lock since mHomeDir is const */ char folder[RTPATH_MAX]; int vrc = RTPathAbsEx(m->strHomeDir.c_str(), strPath.c_str(), folder, sizeof(folder)); if (RT_SUCCESS(vrc)) aResult = folder; return vrc; } /** * Tries to calculate the relative path of the given absolute path using the * directory of the VirtualBox settings file as the base directory. * * @param aPath Absolute path to calculate the relative path for. * @param aResult Where to put the result (used only when it's possible to * make a relative path from the given absolute path; otherwise * left untouched). * * @note Doesn't lock any object. */ void VirtualBox::calculateRelativePath(const Utf8Str &strPath, Utf8Str &aResult) { AutoCaller autoCaller(this); AssertComRCReturnVoid(autoCaller.rc()); /* no need to lock since mHomeDir is const */ Utf8Str settingsDir = m->strHomeDir; if (RTPathStartsWith(strPath.c_str(), settingsDir.c_str())) { /* when assigning, we create a separate Utf8Str instance because both * aPath and aResult can point to the same memory location when this * func is called (if we just do aResult = aPath, aResult will be freed * first, and since its the same as aPath, an attempt to copy garbage * will be made. */ aResult = Utf8Str(strPath.c_str() + settingsDir.length() + 1); } } // private methods ///////////////////////////////////////////////////////////////////////////// /** * Checks if there is a hard disk, DVD or floppy image with the given ID or * location already registered. * * On return, sets @a aConflict to the string describing the conflicting medium, * or sets it to @c Null if no conflicting media is found. Returns S_OK in * either case. A failure is unexpected. * * @param aId UUID to check. * @param aLocation Location to check. * @param aConflict Where to return parameters of the conflicting medium. * * @note Locks the media tree and media objects for reading. */ HRESULT VirtualBox::checkMediaForConflicts2(const Guid &aId, const Utf8Str &aLocation, Utf8Str &aConflict) { aConflict.setNull(); AssertReturn(!aId.isEmpty() && !aLocation.isEmpty(), E_FAIL); AutoReadLock alock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); HRESULT rc = S_OK; Bstr bstrLocation(aLocation); { ComObjPtr hardDisk; rc = findHardDisk(&aId, bstrLocation, false /* aSetError */, &hardDisk); if (SUCCEEDED(rc)) { /* Note: no AutoCaller since bound to this */ AutoReadLock mediaLock(hardDisk COMMA_LOCKVAL_SRC_POS); aConflict = Utf8StrFmt(tr("hard disk '%s' with UUID {%RTuuid}"), hardDisk->getLocationFull().raw(), hardDisk->getId().raw()); return S_OK; } } { ComObjPtr image; rc = findDVDImage(&aId, bstrLocation, false /* aSetError */, &image); if (SUCCEEDED(rc)) { /* Note: no AutoCaller since bound to this */ AutoReadLock mediaLock(image COMMA_LOCKVAL_SRC_POS); aConflict = Utf8StrFmt(tr("CD/DVD image '%s' with UUID {%RTuuid}"), image->getLocationFull().raw(), image->getId().raw()); return S_OK; } } { ComObjPtr image; rc = findFloppyImage(&aId, bstrLocation, false /* aSetError */, &image); if (SUCCEEDED(rc)) { /* Note: no AutoCaller since bound to this */ AutoReadLock mediaLock(image COMMA_LOCKVAL_SRC_POS); aConflict = Utf8StrFmt(tr("floppy image '%s' with UUID {%RTuuid}"), image->getLocationFull().raw(), image->getId().raw()); return S_OK; } } return S_OK; } /** * Called from Machine::prepareSaveSettings() when it has detected * that a machine has been renamed. Such renames will require * updating the global media registry during the * VirtualBox::saveSettings() that follows later. * * When a machine is renamed, there may well be media (in particular, * diff images for snapshots) in the global registry that will need * to have their paths updated. Before 3.2, Machine::saveSettings * used to call VirtualBox::saveSettings implicitly, which was both * unintuitive and caused locking order problems. Now, we remeber * such pending name changes with this method so that * VirtualBox::saveSettings() can process them properly. */ void VirtualBox::rememberMachineNameChangeForMedia(const Utf8Str &strOldConfigDir, const Utf8Str &strNewConfigDir) { AutoWriteLock mediaLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); Data::PendingMachineRename pmr; pmr.strConfigDirOld = strOldConfigDir; pmr.strConfigDirNew = strNewConfigDir; m->llPendingMachineRenames.push_back(pmr); } /** * Helper function to write out the configuration tree. * * @note Caller must have locked the VirtualBox object for writing! */ HRESULT VirtualBox::saveSettings() { AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AssertReturn(isWriteLockOnCurrentThread(), E_FAIL); AssertReturn(!m->strSettingsFilePath.isEmpty(), E_FAIL); HRESULT rc = S_OK; try { // lock the lists while we're here AutoReadLock machinesLock(m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); // machines settings::MachinesRegistry machinesTemp; { for (MachinesOList::iterator it = m->ollMachines.begin(); it != m->ollMachines.end(); ++it) { Machine *pMachine = *it; // save actual machine registry entry settings::MachineRegistryEntry mre; rc = pMachine->saveRegistryEntry(mre); machinesTemp.push_back(mre); } } // lock all media for the following; use a write lock because we're // modifying the PendingMachineRenamesList, which is protected by this AutoWriteLock mediaLock(getMediaTreeLockHandle() COMMA_LOCKVAL_SRC_POS); // if a machine was renamed, then we'll need to refresh media paths if (m->llPendingMachineRenames.size()) { // make a single list from the three media lists so we don't need three loops MediaList llAllMedia; // with hard disks, we must use the map, not the list, because the list only has base images for (HardDiskMap::iterator it = m->mapHardDisks.begin(); it != m->mapHardDisks.end(); ++it) llAllMedia.push_back(it->second); for (MediaList::iterator it = m->ollDVDImages.begin(); it != m->ollDVDImages.end(); ++it) llAllMedia.push_back(*it); for (MediaList::iterator it = m->ollFloppyImages.begin(); it != m->ollFloppyImages.end(); ++it) llAllMedia.push_back(*it); for (MediaList::iterator it = llAllMedia.begin(); it != llAllMedia.end(); ++it) { Medium *pMedium = *it; for (Data::PendingMachineRenamesList::iterator it2 = m->llPendingMachineRenames.begin(); it2 != m->llPendingMachineRenames.end(); ++it2) { const Data::PendingMachineRename &pmr = *it2; const char *pcszOld = pmr.strConfigDirOld.c_str(); const char *pcszNew = pmr.strConfigDirNew.c_str(); pMedium->updatePath(pcszOld, pcszNew); } } // done, don't do it again until we have more machine renames m->llPendingMachineRenames.clear(); } // hard disks settings::MediaList hardDisksTemp; for (MediaList::const_iterator it = m->ollHardDisks.begin(); it != m->ollHardDisks.end(); ++it) { settings::Medium med; rc = (*it)->saveSettings(med); // this recurses into its children if (FAILED(rc)) throw rc; hardDisksTemp.push_back(med); } /* CD/DVD images */ settings::MediaList dvdsTemp; for (MediaList::const_iterator it = m->ollDVDImages.begin(); it != m->ollDVDImages.end(); ++it) { settings::Medium med; rc = (*it)->saveSettings(med); if (FAILED(rc)) throw rc; dvdsTemp.push_back(med); } /* floppy images */ settings::MediaList floppiesTemp; for (MediaList::const_iterator it = m->ollFloppyImages.begin(); it != m->ollFloppyImages.end(); ++it) { settings::Medium med; rc = (*it)->saveSettings(med); if (FAILED(rc)) throw rc; floppiesTemp.push_back(med); } settings::DHCPServersList dhcpServersTemp; { AutoReadLock dhcpLock(m->ollDHCPServers.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (DHCPServersOList::const_iterator it = m->ollDHCPServers.begin(); it != m->ollDHCPServers.end(); ++it) { settings::DHCPServer d; rc = (*it)->saveSettings(d); if (FAILED(rc)) throw rc; dhcpServersTemp.push_back(d); } } /* now copy the temp data to the config file under the VirtualBox lock */ m->pMainConfigFile->llMachines = machinesTemp; m->pMainConfigFile->llHardDisks = hardDisksTemp; m->pMainConfigFile->llDvdImages = dvdsTemp; m->pMainConfigFile->llFloppyImages = floppiesTemp; m->pMainConfigFile->llDhcpServers = dhcpServersTemp; // leave extra data alone, it's still in the config file /* host data (USB filters) */ rc = m->pHost->saveSettings(m->pMainConfigFile->host); if (FAILED(rc)) throw rc; rc = m->pSystemProperties->saveSettings(m->pMainConfigFile->systemProperties); if (FAILED(rc)) throw rc; // and write out the XML, still under the lock m->pMainConfigFile->write(m->strSettingsFilePath); } catch (HRESULT err) { /* we assume that error info is set by the thrower */ rc = err; } catch (...) { rc = VirtualBox::handleUnexpectedExceptions(RT_SRC_POS); } return rc; } /** * Helper to register the machine. * * When called during VirtualBox startup, adds the given machine to the * collection of registered machines. Otherwise tries to mark the machine * as registered, and, if succeeded, adds it to the collection and * saves global settings. * * @note The caller must have added itself as a caller of the @a aMachine * object if calls this method not on VirtualBox startup. * * @param aMachine machine to register * * @note Locks objects! */ HRESULT VirtualBox::registerMachine(Machine *aMachine) { ComAssertRet(aMachine, E_INVALIDARG); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = S_OK; AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); { ComObjPtr pMachine; rc = findMachine(aMachine->getId(), false /* aDoSetError */, &pMachine); if (SUCCEEDED(rc)) { /* sanity */ AutoLimitedCaller machCaller(pMachine); AssertComRC(machCaller.rc()); return setError(E_INVALIDARG, tr("Registered machine with UUID {%RTuuid} ('%ls') already exists"), aMachine->getId().raw(), pMachine->getSettingsFileFull().raw()); } ComAssertRet(rc == VBOX_E_OBJECT_NOT_FOUND, rc); rc = S_OK; } if (autoCaller.state() != InInit) { rc = aMachine->trySetRegistered(TRUE); if (FAILED(rc)) return rc; } /* add to the collection of registered machines */ m->ollMachines.addChild(aMachine); if (autoCaller.state() != InInit) rc = saveSettings(); return rc; } /** * Remembers the given hard disk by storing it in the hard disk registry. * * @param aHardDisk Hard disk object to remember. * @param pfNeedsSaveSettings Optional pointer to a bool that must have been initialized to false and that will be set to true * by this function if the caller should invoke VirtualBox::saveSettings() because the global settings have changed. * * @note Caller must hold the media tree lock for writing; in addition, this locks @a aHardDisk for reading */ HRESULT VirtualBox::registerHardDisk(Medium *aHardDisk, bool *pfNeedsSaveSettings) { AssertReturn(aHardDisk != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoCaller hardDiskCaller(aHardDisk); AssertComRCReturn(hardDiskCaller.rc(), hardDiskCaller.rc()); // caller must hold the media tree write lock Assert(getMediaTreeLockHandle().isWriteLockOnCurrentThread()); Guid id; Utf8Str strLocationFull; ComObjPtr pParent; { AutoReadLock hardDiskLock(aHardDisk COMMA_LOCKVAL_SRC_POS); id = aHardDisk->getId(); strLocationFull = aHardDisk->getLocationFull(); pParent = aHardDisk->getParent(); } HRESULT rc; Utf8Str strConflict; rc = checkMediaForConflicts2(id, strLocationFull, strConflict); if (FAILED(rc)) return rc; if (strConflict.length()) return setError(E_INVALIDARG, tr("Cannot register the hard disk '%s' with UUID {%RTuuid} because a %s already exists in the media registry ('%s')"), strLocationFull.raw(), id.raw(), strConflict.raw(), m->strSettingsFilePath.raw()); // store base (root) hard disks in the list if (pParent.isNull()) m->ollHardDisks.getList().push_back(aHardDisk); // access the list directly because we already locked the list above // store all hard disks (even differencing images) in the map m->mapHardDisks[id] = aHardDisk; if (pfNeedsSaveSettings) *pfNeedsSaveSettings = true; return rc; } /** * Removes the given hard disk from the hard disk registry. * * @param aHardDisk Hard disk object to remove. * @param pfNeedsSaveSettings Optional pointer to a bool that must have been initialized to false and that will be set to true * by this function if the caller should invoke VirtualBox::saveSettings() because the global settings have changed. * * @note Caller must hold the media tree lock for writing; in addition, this locks @a aHardDisk for reading */ HRESULT VirtualBox::unregisterHardDisk(Medium *aHardDisk, bool *pfNeedsSaveSettings) { AssertReturn(aHardDisk != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoCaller hardDiskCaller(aHardDisk); AssertComRCReturn(hardDiskCaller.rc(), hardDiskCaller.rc()); // caller must hold the media tree write lock Assert(getMediaTreeLockHandle().isWriteLockOnCurrentThread()); Guid id; ComObjPtr pParent; { AutoReadLock hardDiskLock(aHardDisk COMMA_LOCKVAL_SRC_POS); id = aHardDisk->getId(); pParent = aHardDisk->getParent(); } // remove base (root) hard disks from the list if (pParent.isNull()) m->ollHardDisks.getList().remove(aHardDisk); // access the list directly because caller must have locked the list // remove all hard disks (even differencing images) from map size_t cnt = m->mapHardDisks.erase(id); Assert(cnt == 1); NOREF(cnt); if (pfNeedsSaveSettings) *pfNeedsSaveSettings = true; return S_OK; } /** * Remembers the given image by storing it in the CD/DVD or floppy image registry. * * @param argImage Image object to remember. * @param argType Either DeviceType_DVD or DeviceType_Floppy. * @param pfNeedsSaveSettings Optional pointer to a bool that must have been initialized to false and that will be set to true * by this function if the caller should invoke VirtualBox::saveSettings() because the global settings have changed. * * @note Caller must hold the media tree lock for writing; in addition, this locks @a argImage for reading */ HRESULT VirtualBox::registerImage(Medium *argImage, DeviceType_T argType, bool *pfNeedsSaveSettings) { AssertReturn(argImage != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoCaller imageCaller(argImage); AssertComRCReturn(imageCaller.rc(), imageCaller.rc()); // caller must hold the media tree write lock Assert(getMediaTreeLockHandle().isWriteLockOnCurrentThread()); Guid id; Utf8Str strLocationFull; ComObjPtr pParent; { AutoReadLock al(argImage COMMA_LOCKVAL_SRC_POS); id = argImage->getId(); strLocationFull = argImage->getLocationFull(); pParent = argImage->getParent(); } // work on DVDs or floppies list? ObjectsList &oll = (argType == DeviceType_DVD) ? m->ollDVDImages : m->ollFloppyImages; HRESULT rc; // lock the images lists (list + map) while checking for conflicts AutoWriteLock al(oll.getLockHandle() COMMA_LOCKVAL_SRC_POS); Utf8Str strConflict; rc = checkMediaForConflicts2(id, strLocationFull, strConflict); if (FAILED(rc)) return rc; if (strConflict.length()) return setError(VBOX_E_INVALID_OBJECT_STATE, tr("Cannot register the image '%s' with UUID {%RTuuid} because a %s already exists in the media registry ('%s')"), strLocationFull.raw(), id.raw(), strConflict.raw(), m->strSettingsFilePath.raw()); // add to the collection oll.getList().push_back(argImage); // access the list directly because we already locked the list above if (pfNeedsSaveSettings) *pfNeedsSaveSettings = true; return rc; } /** * Removes the given image from the CD/DVD or floppy image registry. * * @param argImage Image object to remove. * @param argType Either DeviceType_DVD or DeviceType_Floppy. * @param pfNeedsSaveSettings Optional pointer to a bool that must have been initialized to false and that will be set to true * by this function if the caller should invoke VirtualBox::saveSettings() because the global settings have changed. * * @note Caller must hold the media tree lock for writing; in addition, this locks @a argImage for reading */ HRESULT VirtualBox::unregisterImage(Medium *argImage, DeviceType_T argType, bool *pfNeedsSaveSettings) { AssertReturn(argImage != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoCaller imageCaller(argImage); AssertComRCReturn(imageCaller.rc(), imageCaller.rc()); // caller must hold the media tree write lock Assert(getMediaTreeLockHandle().isWriteLockOnCurrentThread()); Guid id; ComObjPtr pParent; { AutoReadLock al(argImage COMMA_LOCKVAL_SRC_POS); id = argImage->getId(); pParent = argImage->getParent(); } // work on DVDs or floppies list? ObjectsList &oll = (argType == DeviceType_DVD) ? m->ollDVDImages : m->ollFloppyImages; // access the list directly because the caller must have requested the lock oll.getList().remove(argImage); HRESULT rc = S_OK; if (pfNeedsSaveSettings) *pfNeedsSaveSettings = true; return rc; } /** * Creates the path to the specified file according to the path information * present in the file name. * * Note that the given file name must contain the full path otherwise the * extracted relative path will be created based on the current working * directory which is normally unknown. * * @param aFileName Full file name which path needs to be created. * * @return Extended error information on failure to create the path. */ /* static */ HRESULT VirtualBox::ensureFilePathExists(const Utf8Str &strFileName) { Utf8Str strDir(strFileName); strDir.stripFilename(); if (!RTDirExists(strDir.c_str())) { int vrc = RTDirCreateFullPath(strDir.c_str(), 0777); if (RT_FAILURE(vrc)) return setError(E_FAIL, tr("Could not create the directory '%s' (%Rrc)"), strDir.c_str(), vrc); } return S_OK; } /** * Handles unexpected exceptions by turning them into COM errors in release * builds or by hitting a breakpoint in the release builds. * * Usage pattern: * @code try { // ... } catch (LaLalA) { // ... } catch (...) { rc = VirtualBox::handleUnexpectedExceptions (RT_SRC_POS); } * @endcode * * @param RT_SRC_POS_DECL "RT_SRC_POS" macro instantiation. */ /* static */ HRESULT VirtualBox::handleUnexpectedExceptions(RT_SRC_POS_DECL) { try { /* re-throw the current exception */ throw; } catch (const xml::Error &err) { return setError(E_FAIL, tr("%s.\n%s[%d] (%s)"), err.what(), pszFile, iLine, pszFunction); } catch (const std::exception &err) { return setError(E_FAIL, tr("Unexpected exception: %s [%s]\n%s[%d] (%s)"), err.what(), typeid(err).name(), pszFile, iLine, pszFunction); } catch (...) { return setError(E_FAIL, tr("Unknown exception\n%s[%d] (%s)"), pszFile, iLine, pszFunction); } /* should not get here */ AssertFailed(); return E_FAIL; } const Utf8Str& VirtualBox::settingsFilePath() { return m->strSettingsFilePath; } /** * Returns the lock handle which protects the media trees (hard disks, * DVDs, floppies). As opposed to version 3.1 and earlier, these lists * are no longer protected by the VirtualBox lock, but by this more * specialized lock. Mind the locking order: always request this lock * after the VirtualBox object lock but before the locks of the media * objects contained in these lists. See AutoLock.h. */ RWLockHandle& VirtualBox::getMediaTreeLockHandle() { return m->lockMedia; } /** * Thread function that watches the termination of all client processes * that have opened sessions using IVirtualBox::OpenSession() */ // static DECLCALLBACK(int) VirtualBox::ClientWatcher(RTTHREAD /* thread */, void *pvUser) { LogFlowFuncEnter(); VirtualBox *that = (VirtualBox*)pvUser; Assert(that); typedef std::vector< ComObjPtr > MachineVector; typedef std::vector< ComObjPtr > SessionMachineVector; SessionMachineVector machines; MachineVector spawnedMachines; size_t cnt = 0; size_t cntSpawned = 0; #if defined(RT_OS_WINDOWS) HRESULT hrc = CoInitializeEx(NULL, COINIT_MULTITHREADED | COINIT_DISABLE_OLE1DDE | COINIT_SPEED_OVER_MEMORY); AssertComRC(hrc); /// @todo (dmik) processes reaping! HANDLE handles[MAXIMUM_WAIT_OBJECTS]; handles[0] = that->m->updateReq; do { AutoCaller autoCaller(that); /* VirtualBox has been early uninitialized, terminate */ if (!autoCaller.isOk()) break; do { /* release the caller to let uninit() ever proceed */ autoCaller.release(); DWORD rc = ::WaitForMultipleObjects((DWORD)(1 + cnt + cntSpawned), handles, FALSE, INFINITE); /* Restore the caller before using VirtualBox. If it fails, this * means VirtualBox is being uninitialized and we must terminate. */ autoCaller.add(); if (!autoCaller.isOk()) break; bool update = false; if (rc == WAIT_OBJECT_0) { /* update event is signaled */ update = true; } else if (rc > WAIT_OBJECT_0 && rc <= (WAIT_OBJECT_0 + cnt)) { /* machine mutex is released */ (machines[rc - WAIT_OBJECT_0 - 1])->checkForDeath(); update = true; } else if (rc > WAIT_ABANDONED_0 && rc <= (WAIT_ABANDONED_0 + cnt)) { /* machine mutex is abandoned due to client process termination */ (machines[rc - WAIT_ABANDONED_0 - 1])->checkForDeath(); update = true; } else if (rc > WAIT_OBJECT_0 + cnt && rc <= (WAIT_OBJECT_0 + cntSpawned)) { /* spawned VM process has terminated (normally or abnormally) */ (spawnedMachines[rc - WAIT_OBJECT_0 - cnt - 1])-> checkForSpawnFailure(); update = true; } if (update) { /* close old process handles */ for (size_t i = 1 + cnt; i < 1 + cnt + cntSpawned; ++i) CloseHandle(handles[i]); // lock the machines list for reading AutoReadLock thatLock(that->m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); /* obtain a new set of opened machines */ cnt = 0; machines.clear(); for (MachinesOList::iterator it = that->m->ollMachines.begin(); it != that->m->ollMachines.end(); ++it) { /// @todo handle situations with more than 64 objects AssertMsgBreak((1 + cnt) <= MAXIMUM_WAIT_OBJECTS, ("MAXIMUM_WAIT_OBJECTS reached")); ComObjPtr sm; HANDLE ipcSem; if ((*it)->isSessionOpenOrClosing(sm, NULL, &ipcSem)) { machines.push_back(sm); handles[1 + cnt] = ipcSem; ++cnt; } } LogFlowFunc(("UPDATE: direct session count = %d\n", cnt)); /* obtain a new set of spawned machines */ cntSpawned = 0; spawnedMachines.clear(); for (MachinesOList::iterator it = that->m->ollMachines.begin(); it != that->m->ollMachines.end(); ++it) { /// @todo handle situations with more than 64 objects AssertMsgBreak((1 + cnt + cntSpawned) <= MAXIMUM_WAIT_OBJECTS, ("MAXIMUM_WAIT_OBJECTS reached")); RTPROCESS pid; if ((*it)->isSessionSpawning(&pid)) { HANDLE ph = OpenProcess(SYNCHRONIZE, FALSE, pid); AssertMsg(ph != NULL, ("OpenProcess (pid=%d) failed with %d\n", pid, GetLastError())); if (rc == 0) { spawnedMachines.push_back(*it); handles[1 + cnt + cntSpawned] = ph; ++cntSpawned; } } } LogFlowFunc(("UPDATE: spawned session count = %d\n", cntSpawned)); // machines lock unwinds here } } while (true); } while (0); /* close old process handles */ for (size_t i = 1 + cnt; i < 1 + cnt + cntSpawned; ++ i) CloseHandle(handles[i]); /* release sets of machines if any */ machines.clear(); spawnedMachines.clear(); ::CoUninitialize(); #elif defined(RT_OS_OS2) /// @todo (dmik) processes reaping! /* according to PMREF, 64 is the maximum for the muxwait list */ SEMRECORD handles[64]; HMUX muxSem = NULLHANDLE; do { AutoCaller autoCaller(that); /* VirtualBox has been early uninitialized, terminate */ if (!autoCaller.isOk()) break; do { /* release the caller to let uninit() ever proceed */ autoCaller.release(); int vrc = RTSemEventWait(that->m->updateReq, 500); /* Restore the caller before using VirtualBox. If it fails, this * means VirtualBox is being uninitialized and we must terminate. */ autoCaller.add(); if (!autoCaller.isOk()) break; bool update = false; bool updateSpawned = false; if (RT_SUCCESS(vrc)) { /* update event is signaled */ update = true; updateSpawned = true; } else { AssertMsg(vrc == VERR_TIMEOUT || vrc == VERR_INTERRUPTED, ("RTSemEventWait returned %Rrc\n", vrc)); /* are there any mutexes? */ if (cnt > 0) { /* figure out what's going on with machines */ unsigned long semId = 0; APIRET arc = ::DosWaitMuxWaitSem(muxSem, SEM_IMMEDIATE_RETURN, &semId); if (arc == NO_ERROR) { /* machine mutex is normally released */ Assert(semId >= 0 && semId < cnt); if (semId >= 0 && semId < cnt) { #ifdef DEBUG { AutoReadLock machineLock(machines[semId] COMMA_LOCKVAL_SRC_POS); LogFlowFunc(("released mutex: machine='%ls'\n", machines[semId]->name().raw())); } #endif machines[semId]->checkForDeath(); } update = true; } else if (arc == ERROR_SEM_OWNER_DIED) { /* machine mutex is abandoned due to client process * termination; find which mutex is in the Owner Died * state */ for (size_t i = 0; i < cnt; ++ i) { PID pid; TID tid; unsigned long reqCnt; arc = DosQueryMutexSem((HMTX)handles[i].hsemCur, &pid, &tid, &reqCnt); if (arc == ERROR_SEM_OWNER_DIED) { /* close the dead mutex as asked by PMREF */ ::DosCloseMutexSem((HMTX)handles[i].hsemCur); Assert(i >= 0 && i < cnt); if (i >= 0 && i < cnt) { #ifdef DEBUG { AutoReadLock machineLock(machines[semId] COMMA_LOCKVAL_SRC_POS); LogFlowFunc(("mutex owner dead: machine='%ls'\n", machines[i]->name().raw())); } #endif machines[i]->checkForDeath(); } } } update = true; } else AssertMsg(arc == ERROR_INTERRUPT || arc == ERROR_TIMEOUT, ("DosWaitMuxWaitSem returned %d\n", arc)); } /* are there any spawning sessions? */ if (cntSpawned > 0) { for (size_t i = 0; i < cntSpawned; ++ i) updateSpawned |= (spawnedMachines[i])-> checkForSpawnFailure(); } } if (update || updateSpawned) { AutoReadLock thatLock(that COMMA_LOCKVAL_SRC_POS); if (update) { /* close the old muxsem */ if (muxSem != NULLHANDLE) ::DosCloseMuxWaitSem(muxSem); /* obtain a new set of opened machines */ cnt = 0; machines.clear(); for (MachinesOList::iterator it = that->m->llMachines.begin(); it != that->m->llMachines.end(); ++ it) { /// @todo handle situations with more than 64 objects AssertMsg(cnt <= 64 /* according to PMREF */, ("maximum of 64 mutex semaphores reached (%d)", cnt)); ComObjPtr sm; HMTX ipcSem; if ((*it)->isSessionOpenOrClosing(sm, NULL, &ipcSem)) { machines.push_back(sm); handles[cnt].hsemCur = (HSEM)ipcSem; handles[cnt].ulUser = cnt; ++ cnt; } } LogFlowFunc(("UPDATE: direct session count = %d\n", cnt)); if (cnt > 0) { /* create a new muxsem */ APIRET arc = ::DosCreateMuxWaitSem(NULL, &muxSem, cnt, handles, DCMW_WAIT_ANY); AssertMsg(arc == NO_ERROR, ("DosCreateMuxWaitSem returned %d\n", arc)); NOREF(arc); } } if (updateSpawned) { /* obtain a new set of spawned machines */ spawnedMachines.clear(); for (MachinesOList::iterator it = that->m->llMachines.begin(); it != that->m->llMachines.end(); ++ it) { if ((*it)->isSessionSpawning()) spawnedMachines.push_back(*it); } cntSpawned = spawnedMachines.size(); LogFlowFunc(("UPDATE: spawned session count = %d\n", cntSpawned)); } } } while (true); } while (0); /* close the muxsem */ if (muxSem != NULLHANDLE) ::DosCloseMuxWaitSem(muxSem); /* release sets of machines if any */ machines.clear(); spawnedMachines.clear(); #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) bool update = false; bool updateSpawned = false; do { AutoCaller autoCaller(that); if (!autoCaller.isOk()) break; do { /* release the caller to let uninit() ever proceed */ autoCaller.release(); int rc = RTSemEventWait(that->m->updateReq, 500); /* * Restore the caller before using VirtualBox. If it fails, this * means VirtualBox is being uninitialized and we must terminate. */ autoCaller.add(); if (!autoCaller.isOk()) break; if (RT_SUCCESS(rc) || update || updateSpawned) { /* RT_SUCCESS(rc) means an update event is signaled */ // lock the machines list for reading AutoReadLock thatLock(that->m->ollMachines.getLockHandle() COMMA_LOCKVAL_SRC_POS); if (RT_SUCCESS(rc) || update) { /* obtain a new set of opened machines */ machines.clear(); for (MachinesOList::iterator it = that->m->ollMachines.begin(); it != that->m->ollMachines.end(); ++it) { ComObjPtr sm; if ((*it)->isSessionOpenOrClosing(sm)) machines.push_back(sm); } cnt = machines.size(); LogFlowFunc(("UPDATE: direct session count = %d\n", cnt)); } if (RT_SUCCESS(rc) || updateSpawned) { /* obtain a new set of spawned machines */ spawnedMachines.clear(); for (MachinesOList::iterator it = that->m->ollMachines.begin(); it != that->m->ollMachines.end(); ++it) { if ((*it)->isSessionSpawning()) spawnedMachines.push_back(*it); } cntSpawned = spawnedMachines.size(); LogFlowFunc(("UPDATE: spawned session count = %d\n", cntSpawned)); } // machines lock unwinds here } update = false; for (size_t i = 0; i < cnt; ++ i) update |= (machines[i])->checkForDeath(); updateSpawned = false; for (size_t i = 0; i < cntSpawned; ++ i) updateSpawned |= (spawnedMachines[i])->checkForSpawnFailure(); /* reap child processes */ { AutoWriteLock alock(that COMMA_LOCKVAL_SRC_POS); if (that->m->llProcesses.size()) { LogFlowFunc(("UPDATE: child process count = %d\n", that->m->llProcesses.size())); VirtualBox::Data::ProcessList::iterator it = that->m->llProcesses.begin(); while (it != that->m->llProcesses.end()) { RTPROCESS pid = *it; RTPROCSTATUS status; int vrc = ::RTProcWait(pid, RTPROCWAIT_FLAGS_NOBLOCK, &status); if (vrc == VINF_SUCCESS) { LogFlowFunc(("pid %d (%x) was reaped, status=%d, reason=%d\n", pid, pid, status.iStatus, status.enmReason)); it = that->m->llProcesses.erase(it); } else { LogFlowFunc(("pid %d (%x) was NOT reaped, vrc=%Rrc\n", pid, pid, vrc)); if (vrc != VERR_PROCESS_RUNNING) { /* remove the process if it is not already running */ it = that->m->llProcesses.erase(it); } else ++ it; } } } } } while (true); } while (0); /* release sets of machines if any */ machines.clear(); spawnedMachines.clear(); #else # error "Port me!" #endif LogFlowFuncLeave(); return 0; } /** * Thread function that handles custom events posted using #postEvent(). */ // static DECLCALLBACK(int) VirtualBox::AsyncEventHandler(RTTHREAD thread, void *pvUser) { LogFlowFuncEnter(); AssertReturn(pvUser, VERR_INVALID_POINTER); // create an event queue for the current thread EventQueue *eventQ = new EventQueue(); AssertReturn(eventQ, VERR_NO_MEMORY); // return the queue to the one who created this thread *(static_cast (pvUser)) = eventQ; // signal that we're ready RTThreadUserSignal(thread); BOOL ok = TRUE; Event *event = NULL; while ((ok = eventQ->waitForEvent(&event)) && event) eventQ->handleEvent(event); AssertReturn(ok, VERR_GENERAL_FAILURE); delete eventQ; LogFlowFuncLeave(); return 0; } //////////////////////////////////////////////////////////////////////////////// /** * Takes the current list of registered callbacks of the managed VirtualBox * instance, and calls #handleCallback() for every callback item from the * list, passing the item as an argument. * * @note Locks the managed VirtualBox object for reading but leaves the lock * before iterating over callbacks and calling their methods. */ void *VirtualBox::CallbackEvent::handler() { if (!mVirtualBox) return NULL; AutoCaller autoCaller(mVirtualBox); if (!autoCaller.isOk()) { LogWarningFunc(("VirtualBox has been uninitialized (state=%d), the callback event is discarded!\n", autoCaller.state())); /* We don't need mVirtualBox any more, so release it */ mVirtualBox = NULL; return NULL; } CallbackList callbacks; { /* Make a copy to release the lock before iterating */ AutoReadLock alock(mVirtualBox COMMA_LOCKVAL_SRC_POS); callbacks = mVirtualBox->m->llCallbacks; } for (CallbackList::const_iterator it = callbacks.begin(); it != callbacks.end(); ++it) { if (it->isWanted(mWhat)) { HRESULT hrc = handleCallback(it->ptrICb); if (hrc == VBOX_E_DONT_CALL_AGAIN) { /* Have to update the original. */ AutoReadLock alock(mVirtualBox COMMA_LOCKVAL_SRC_POS); CallbackList::iterator itOrg; itOrg = std::find(mVirtualBox->m->llCallbacks.begin(), mVirtualBox->m->llCallbacks.end(), CallbackList::value_type(it->ptrICb)); if (itOrg != mVirtualBox->m->llCallbacks.end()) itOrg->setDontCallAgain(mWhat); } else if (FAILED_DEAD_INTERFACE(hrc)) mVirtualBox->removeDeadCallback(it->ptrICb); } } mVirtualBox = NULL; /* Not needed any longer. Still make sense to do this? */ return NULL; } //STDMETHODIMP VirtualBox::CreateDHCPServerForInterface(/*IHostNetworkInterface * aIinterface,*/ IDHCPServer ** aServer) //{ // return E_NOTIMPL; //} STDMETHODIMP VirtualBox::CreateDHCPServer(IN_BSTR aName, IDHCPServer ** aServer) { CheckComArgStrNotEmptyOrNull(aName); CheckComArgNotNull(aServer); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); ComObjPtr dhcpServer; dhcpServer.createObject(); HRESULT rc = dhcpServer->init(this, aName); if (FAILED(rc)) return rc; rc = registerDHCPServer(dhcpServer, true); if (FAILED(rc)) return rc; dhcpServer.queryInterfaceTo(aServer); return rc; } STDMETHODIMP VirtualBox::FindDHCPServerByNetworkName(IN_BSTR aName, IDHCPServer ** aServer) { CheckComArgStrNotEmptyOrNull(aName); CheckComArgNotNull(aServer); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc; Bstr bstr; ComPtr found; AutoReadLock alock(m->ollDHCPServers.getLockHandle() COMMA_LOCKVAL_SRC_POS); for (DHCPServersOList::const_iterator it = m->ollDHCPServers.begin(); it != m->ollDHCPServers.end(); ++it) { rc = (*it)->COMGETTER(NetworkName)(bstr.asOutParam()); if (FAILED(rc)) throw rc; if (bstr == aName) { found = *it; break; } } if (!found) return E_INVALIDARG; return found.queryInterfaceTo(aServer); } STDMETHODIMP VirtualBox::RemoveDHCPServer(IDHCPServer * aServer) { CheckComArgNotNull(aServer); AutoCaller autoCaller(this); if (FAILED(autoCaller.rc())) return autoCaller.rc(); HRESULT rc = unregisterDHCPServer(static_cast(aServer), true); return rc; } /** * Remembers the given dhcp server by storing it in the hard disk registry. * * @param aDHCPServer Dhcp Server object to remember. * @param aSaveRegistry @c true to save hard disk registry to disk (default). * * When @a aSaveRegistry is @c true, this operation may fail because of the * failed #saveSettings() method it calls. In this case, the dhcp server object * will not be remembered. It is therefore the responsibility of the caller to * call this method as the last step of some action that requires registration * in order to make sure that only fully functional dhcp server objects get * registered. * * @note Locks this object for writing and @a aDHCPServer for reading. */ HRESULT VirtualBox::registerDHCPServer(DHCPServer *aDHCPServer, bool aSaveRegistry /*= true*/) { AssertReturn(aDHCPServer != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoCaller dhcpServerCaller(aDHCPServer); AssertComRCReturn(dhcpServerCaller.rc(), dhcpServerCaller.rc()); Bstr name; HRESULT rc; rc = aDHCPServer->COMGETTER(NetworkName)(name.asOutParam()); if (FAILED(rc)) return rc; ComPtr existing; rc = FindDHCPServerByNetworkName(name, existing.asOutParam()); if (SUCCEEDED(rc)) { return E_INVALIDARG; } rc = S_OK; m->ollDHCPServers.addChild(aDHCPServer); if (aSaveRegistry) { rc = saveSettings(); if (FAILED(rc)) unregisterDHCPServer(aDHCPServer, false /* aSaveRegistry */); } return rc; } /** * Removes the given hard disk from the hard disk registry. * * @param aHardDisk Hard disk object to remove. * @param aSaveRegistry @c true to save hard disk registry to disk (default). * * When @a aSaveRegistry is @c true, this operation may fail because of the * failed #saveSettings() method it calls. In this case, the hard disk object * will NOT be removed from the registry when this method returns. It is * therefore the responsibility of the caller to call this method as the first * step of some action that requires unregistration, before calling uninit() on * @a aHardDisk. * * @note Locks this object for writing and @a aHardDisk for reading. */ HRESULT VirtualBox::unregisterDHCPServer(DHCPServer *aDHCPServer, bool aSaveRegistry /*= true*/) { AssertReturn(aDHCPServer != NULL, E_INVALIDARG); AutoCaller autoCaller(this); AssertComRCReturn(autoCaller.rc(), autoCaller.rc()); AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); AutoCaller dhcpServerCaller(aDHCPServer); AssertComRCReturn(dhcpServerCaller.rc(), dhcpServerCaller.rc()); m->ollDHCPServers.removeChild(aDHCPServer); HRESULT rc = S_OK; if (aSaveRegistry) { rc = saveSettings(); if (FAILED(rc)) registerDHCPServer(aDHCPServer, false /* aSaveRegistry */); } return rc; } /* vi: set tabstop=4 shiftwidth=4 expandtab: */