MachineImpl.cpp revision 68b7971bd3dc7072763235a81c6015b4863751a1
#
else /* !RT_OS_WINDOWS */#
endif /* !RT_OS_WINDOWS *////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Machine::Data structure ///////////////////////////////////////////////////////////////////////////// /* mUuid is initialized in Machine::init() */ ///////////////////////////////////////////////////////////////////////////// // Machine::UserData structure ///////////////////////////////////////////////////////////////////////////// /* default values for a newly created machine */ /* mName, mOSTypeId, mSnapshotFolder, mSnapshotFolderFull are initialized in ///////////////////////////////////////////////////////////////////////////// // Machine::HWData structure ///////////////////////////////////////////////////////////////////////////// /* default values for a newly created machine */ mHWVersion =
"2";
/** @todo get the default from the schema if that is possible. */ /* default boot order: floppy - DVD - HDD */ /* Make copies to speed up comparison */ ///////////////////////////////////////////////////////////////////////////// // Machine::HDData structure ///////////////////////////////////////////////////////////////////////////// /* Make copies to speed up comparison */ ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // constructor / destructor ///////////////////////////////////////////////////////////////////////////// * Initializes the instance. * @param aParent Associated parent object * @param aConfigFile Local file system path to the VM settings file (can * be relative to the VirtualBox config directory). * @param aMode Init_New, Init_Existing or Init_Registered * @param aName name for the machine when aMode is Init_New * @param aOsType OS Type of this machine * @param aNameSync |TRUE| to automatically sync settings dir and file * name with the machine name. |FALSE| is used for legacy * machines where the file name is specified by the * user and should never change. Used only in Init_New * mode (ignored otherwise). * @param aId UUID of the machine. Required for aMode==Init_Registered * and optional for aMode==Init_New. Used for consistency * check when aMode is Init_Registered; must match UUID * stored in the settings file. Used for predefining the * UUID of a VM when aMode is Init_New. * @return Success indicator. if not S_OK, the machine object is invalid /* Enclose the state transition NotReady->InInit->Ready */ /* share the parent weakly */ /* register with parent early, since uninit() will unconditionally * unregister on failure */ /* allocate the essential machine data structure (the rest will be * allocated later by initDataAndChildObjects() */ /* memorize the config file name (as provided) */ /* get the full file name */ tr(
"Invalid machine settings file name '%s' (%Rrc)"),
/* store the supplied UUID (will be used to check for UUID consistency // now load the settings from XML: // we're reading the settings file below /* check for the file existence */ tr(
"Machine settings file '%s' already exists"),
tr(
"Invalid machine settings file name '%s' (%Rrc)"),
// create an empty machine config /* set to true now to cause uninit() to call * uninitDataAndChildObjects() on failure */ /* create the machine UUID */ /* memorize the provided new machine's name */ /* initialize the default snapshots folder * (note: depends on the name value set above!) */ /* Apply BIOS defaults */ /* Apply network adapters defaults */ /* Apply serial port defaults */ /* commit all changes made during the initialization */ /* Confirm a successful initialization when it's the case */ * Initializes the registered machine by loading the settings file. * This method is separated from #init() in order to make it possible to * retry the operation after VirtualBox startup instead of refusing to * startup the whole VirtualBox server in case if the settings file of some * registered VM is invalid or inaccessible. * @note Must be always called from this object's write lock * (unless called from #init() that doesn't need any locking). * @note Locks the mUSBController method for writing. * @note Subclasses must not call this method. /* Temporarily reset the registered flag in order to let setters * potentially called from loadSettings() succeed (isMutable() used in * all setters will return FALSE for a Machine instance if mRegistered /* Restore the registered flag (even on failure) */ /* Set mAccessible to TRUE only if we successfully locked and loaded /* commit all changes made during loading the settings file */ /* If the machine is registered, then, instead of returning a * failure, we mark it as inaccessible and set the result to * success to give it a try later */ /* fetch the current error info */ LogWarning((
"Machine {%RTuuid} is inaccessible! [%ls]\n",
/* rollback all changes */ /* uninitialize the common part to make sure all data is reset to * default (null) values */ * Uninitializes the instance. * Called either from FinalRelease() or by the parent when it gets destroyed. * @note The caller of this method must make sure that this object * a) doesn't have active callers on the current thread and b) is not locked * by the current thread; otherwise uninit() will hang either a) due to * AutoUninitSpan waiting for a number of calls to drop to zero or b) due to * a dead-lock caused by this thread waiting for all callers on the other * threads are done but preventing them from doing so by holding a lock. /* Enclose the state transition Ready->InUninit->NotReady */ /* Enter this object lock because there may be a SessionMachine instance * somewhere around, that shares our data and lock but doesn't use our * addCaller()/removeCaller(), and it may be also accessing the same data * members. mParent lock is necessary as well because of * SessionMachine::uninit(), etc. /* Theoretically, this can only happen if the VirtualBox server has been * terminated while there were clients running that owned open direct * sessions. Since in this case we are definitely called by * VirtualBox::uninit(), we may be sure that SessionMachine::uninit() * won't happen on the client watcher thread (because it does * VirtualBox::addCaller() for the duration of the * SessionMachine::checkForDeath() call, so that VirtualBox::uninit() * cannot happen until the VirtualBox caller is released). This is * important, because SessionMachine::uninit() cannot correctly operate * after we return from this method (it expects the Machine instance is * still valid). We'll call it ourselves below. "the direct session is still open!\n",
/* set machine state using SessionMachine reimplementation */ * Uninitialize SessionMachine using public uninit() to indicate * an unexpected uninitialization. /* SessionMachine::uninit() must set mSession.mMachine to null */ /* the lock is no more necessary (SessionMachine is uninitialized) */ /* free the essential data structure last */ ///////////////////////////////////////////////////////////////////////////// /* mParent is constant during life time, no need to lock */ /* try to initialize the VM once more if not accessible */ // @todo why are we parsing this several times? // this is hugely inefficient /* make sure interesting parties will notice the accessibility tr(
"Machine name cannot be empty"));
/* look up the object by Id to check it is valid */ /* when setting, always use the "etalon" value for consistency -- lookup * by ID is case-insensitive and the input value may have different case */ /* check known version */ tr(
"Invalid RAM size: %lu MB (must be in range [%lu, %lu] MB)"),
tr(
"Invalid virtual CPU count: %lu (must be in range [%lu, %lu])"),
tr(
"Invalid VRAM size: %lu MB (must be in range [%lu, %lu] MB)"),
/** @todo this method should not be public */ /** @todo this method should not be public */ tr(
"Invalid memory balloon size: %lu MB (must be in range [%lu, %lu] MB)"),
/** @todo this method should not be public */ /** @todo this method should not be public */ /** @todo check validity! */ /** @todo check validity! */ /* make sure monitor count is a sensible number */ tr(
"Invalid monitor count: %lu (must be in range [%lu, %lu])"),
/* mBIOSSettings is constant during life time, no need to lock */ /* Invalidate all standard leafs. */ /* Invalidate all extended leafs. */ * 1. Allow to change the name of the snapshot folder containing snapshots * 2. Rename the folder on disk instead of just changing the property * value (to be smart and not to leave garbage). Note that it cannot be * done here because the change may be rolled back. Thus, the right * place is #saveSettings(). tr(
"The snapshot folder of a machine with snapshots cannot be changed (please delete all snapshots first)"));
/* the default snapshots folder is 'Snapshots' in the machine dir */ /* the default snapshots folder is {UUID}, for backwards * compatibility and to resolve conflicts */ tr(
"Invalid snapshot folder '%ls' (%Rrc)"),
/* Note: The GUI depends on this method returning E_NOTIMPL with no * extended error info to indicate that USB is simply not available * (w/o treting it as a failure), for example, as in OSE */ * if this is a new machine then no config file exists yet, so always return TRUE /* Note: for machines with no snapshots, we always return FALSE * (mData->mCurrentStateModified will be TRUE in this case, for historical /* Only allow it to be set to true when PoweredOff or Aborted. (Clearing it is always permitted.) */ tr(
"The machine is not powered off (state is %s)"),
///////////////////////////////////////////////////////////////////////////// tr (
"Invalid boot position: %lu (must be in range [1, %lu])"),
tr(
"Booting from USB device is currently not supported"));
tr(
"Invalid boot position: %lu (must be in range [1, %lu])"),
LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%d aDevice=%d aType=%d aId=\"%ls\"\n",
/* VirtualBox::findHardDisk() and the corresponding other methods for * DVD and floppy media need *write* lock (for getting rid of unneeded * host drives which got enumerated); also we want to make sure the * media object we pick up doesn't get unregistered before we finish. */ /// @todo NEWMEDIA implicit machine registration tr(
"Cannot attach storage devices to an unregistered machine"));
tr(
"Invalid machine state: %s"),
/* Check for an existing controller. */ /* check that the port and device are not out of range. */ tr(
"The port and/or count parameter are out of range [%lu:%lu]"),
/* check if the device slot is already busy */ tr(
"Medium '%s' is already attached to device slot %d on port %d of controller '%ls' of this virtual machine"),
tr(
"Device is already attached to slot %d on port %d of controller '%ls' of this virtual machine"),
/* find a hard disk by UUID */ /* first search for host drive */ /// @todo eliminate this conversion /* find a DVD image by UUID */ /* null UUID means null medium, which needs no code */ /* first search for host drive */ /// @todo eliminate this conversion /* find a floppy image by UUID */ /* null UUID means null medium, which needs no code */ tr(
"The device type %d is not recognized"),
tr(
"Medium '%s' is already attached to this virtual machine"),
/* check if the medium was attached to the VM before we started * changing attachments in which case the attachment just needs to /* the simplest case: restore the whole attachment * and return, nothing else to do */ * but don't try to associate it again */ /* go further only if the attachment is to be indirect */ /* perform the so called smart attachment logic for indirect * attachments. Note that smart attachment is only applicable to base /* first, investigate the backup copy of the current hard disk * attachments to make it possible to re-attach existing diffs to * another device slot w/o losing their contents */ /* skip the hard disk if its currently attached (we * cannot attach the same hard disk twice) */ /* matched device, channel and bus (i.e. attached to the * same place) will win and immediately stop the search; * otherwise the attachment that has the youngest * descendant of medium will be used /* the simplest case: restore the whole attachment * and return, nothing else to do */ /* use the previously attached hard disk */ /* not implicit, doesn't require association with this VM */ /* go right to the MediumAttachment creation */ /* then, search through snapshots for the best diff in the given * hard disk's chain to base the new diff on */ /* matched device, channel and bus (i.e. attached to the * same place) will win and immediately stop the search; * otherwise the attachment that has the youngest * descendant of medium will be used /* found a suitable diff, use it as a base */ /* make sure the hard disk is not modified before createDiffStorage() */ /* will leave the lock before the potentially lengthy operation, so * protect with the special state */ /* use the created diff for the actual attachment */ /* as the last step, associate the medium to the VM */ /* here we can fail because of Deleting, or being in process of /* success: finally remember the attachment */ LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld\n",
tr(
"Invalid machine state: %s"),
tr(
"No storage device attached to device slot %d on port %d of controller '%ls'"),
/* attempt to implicitly delete the implicitly created diff */ /// @todo move the implicit flag from MediumAttachment to Medium /// and forbid any hard disk operation when it is implicit. Or maybe /// a special media state for it to make it even more simple. /* will leave the lock before the potentially lengthy operation, so * protect with the special state */ /* we cannot use erase (it) below because backup() above will create * a copy of the list and make this copy active, but the iterator * still refers to the original and is not valid for the copy */ /* For non-hard disk media, detach straight away. */ LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld aPassthrough=%d\n",
tr(
"Invalid machine state: %s"),
tr(
"No storage device attached to device slot %d on port %d of controller '%ls'"),
tr(
"Setting passthrough rejected as the device attached to device slot %d on port %d of controller '%ls' is not a DVD"),
LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld aForce=%d\n",
tr(
"No drive attached to device slot %d on port %d of controller '%ls'"),
/* Remember previously mounted medium. The medium before taking the * backup is not necessarily the same thing. */ /* find a DVD by host device UUID */ /// @todo eliminate this conversion /* find a Floppy by host device UUID */ /// @todo eliminate this conversion /* find a Floppy by UUID */ tr(
"Cannot change medium attached to device slot %d on port %d of controller '%ls'"),
/* The backup operation makes the pAttach reference point to the * old settings. Re-get the correct reference. */ /* For non-hard disk media, detach straight away. */ /* On error roll back this change only. */ /* If the attachment is gone in the mean time, bail out. */ /* For non-hard disk media, re-attach straight away. */ LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%ld aDevice=%ld\n",
tr(
"No storage device attached to device slot %d on port %d of controller '%ls'"),
* @note Locks this object for reading. /* start with nothing found */ /* return the result to caller (may be empty) */ * @note Locks mParent for writing + this object for writing. // 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 // ask for permission from all listeners outside the locks; // onExtraDataCanChange() only briefly requests the VirtualBox // lock to copy the list of callbacks to invoke tr(
"Could not set extra data because someone refused the requested change of '%ls' to '%ls'%s%ls"),
// data is changing and change not vetoed: then write it out under the locks // saveSettings() needs VirtualBox write lock // creates a new key if needed /* save settings on success */ // fire notification outside the lock /* saveSettings() needs mParent lock */ /* when there was auto-conversion, we want to save the file even if /* the settings file path may never be null */ /* save all VM data excluding snapshots */ * during this rollback, the session will be notified if data has tr(
"Cannot delete settings of a registered machine"));
/* delete the settings only when the file actually exists */ tr(
"Could not delete the settings file '%s' (%Rrc)"),
/* delete the Logs folder, nothing important should be left * there (we don't check for errors because the user might have * some private files there that we don't want to delete) */ /* Delete all VBox.log[.N] files from the Logs folder * (this must be in sync with the rotation logic in * Console::powerUpThread()). Also, delete the VBox.png[.N] * files that may have been created by the GUI. */ for (
int i =
3; i >= 0; i--)
/* delete the Snapshots folder, nothing important should be left * there (we don't check for errors because the user might have * some private files there that we don't want to delete) */ /* delete the directory that contains the settings file, but only * if it matches the VM name (i.e. a structure created by default in * prepareSaveSettings()) */ /// @todo (dmik) don't forget to set // mData->mCurrentStateModified to FALSE tr(
"Shared folder named '%ls' already exists"),
/* inform the direct session if any */ /* inform the direct session if any */ tr(
"Machine session is not open (session state: %s)"),
/* ignore calls made after #OnSessionEnd() is called */ tr(
"Machine session is not open (session state: %s)"),
/* ignore calls made after #OnSessionEnd() is called */ /* just be on the safe side when calling another process */ /* fail if we were called after #OnSessionEnd() is called. This is a * silly race condition. */ #
endif /* else !defined (VBOX_WITH_GUEST_PROPS) */ tr(
"Invalid flag values: '%ls'"),
/** @todo r=bird: see efficiency rant in PushGuestProperty. (Yeah, I know, * this is simple and do an OK job atm.) */ tr(
"The property '%ls' cannot be changed by the host"),
/* The backup() operation invalidates our iterator, so /** @todo r=bird: Why aren't we leaving the lock here? The * same code in PushGuestProperty does... */ /* just be on the safe side when calling another process */ *
aValue ?
aValue :
NULL,
/** @todo Fix when adding DeleteGuestProperty(), see defect. */#
endif /* else !defined (VBOX_WITH_GUEST_PROPS) */ * Look for matching patterns and build up a list. * And build up the arrays for returning the property information. /* just be on the safe side when calling another process */ #
endif /* else !defined (VBOX_WITH_GUEST_PROPS) */ LogFlowThisFunc((
"aControllerName=\"%ls\" aControllerPort=%d aDevice=%d\n",
tr(
"No storage device attached to device slot %d on port %d of controller '%ls'"),
tr (
"Invalid connection type: %d"),
/* try to find one with the name first. */ tr (
"Storage controller named '%ls' already exists"),
aName);
/* get a new instance number for the storage controller */ /* inform the direct session if any */ tr(
"Could not find a storage controller with instance number '%lu'"),
/* We can remove the controller only if there is no device attached. */ /* check if the device slot is already busy */ tr(
"Storage controller named '%ls' has still devices attached"),
/* We can remove it now. */ /* inform the direct session if any */ /* @todo where is the right place for this? */ /* @todo cache read data */ /* No saved state data. */ /* No saved state data. */ /* Bitmap is 32bpp, so data is invalid. */ /* @todo not necessary when caching is implemented. */ tr(
"Saved screenshot data is not available (%Rrc)"),
vrc);
tr(
"Saved screenshot data is not available (%Rrc)"),
vrc);
/* Convert pixels to format expected by the API caller. */ /* [0] B, [1] G, [2] R, [3] A. */ for (
unsigned i = 0; i <
cbData; i +=
4)
/* [0] R, [1] G, [2] B, [3] A. */ for (
unsigned i = 0; i <
cbData; i +=
4)
tr(
"Saved screenshot data is not available (%Rrc)"),
vrc);
tr(
"Saved screenshot data is not available (%Rrc)"),
vrc);
for (
unsigned i = 0; i <
cbData; i++)
// public methods for internal purposes ///////////////////////////////////////////////////////////////////////////// * Saves the registry entry of this machine to the given configuration node. * @param aEntryNode Node to save the registry entry to. * @note locks this object for reading. * Calculates the absolute path of the given path taking the directory of the * machine settings file 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). * @note Locks this object for reading. * Tries to calculate the relative path of the given absolute path using the * directory of the machine 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 * @note Locks this object for reading. /* 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 * Returns the full path to the machine's log folder in the * \a aLogFolder argument. /* Log folder is <Machines>/<VM_Name>/Logs */ /* Log folder is <Machines>/<VM_SnapshotFolder>/Logs */ * @note Locks this object for writing, calls the client process (outside the tr(
"The machine '%ls' is not registered"),
/* Hack: in case the session is closing and there is a progress object * which allows waiting for the session to be closed, take the opportunity * and do a limited wait (max. 1 second). This helps a lot when the system * is busy and thus session closing can take a little while. */ tr(
"A session for the machine '%ls' is currently open (or being closed)"),
/* get the session PID */ /* This machine is awaiting for a spawning session to be opened, so * reject any other open attempts from processes other than one * started by #openRemoteSession(). */ tr(
"An unexpected process (PID=0x%08X) has tried to open a direct " "session with the machine named '%ls', while only a process " "started by OpenRemoteSession (PID=0x%08X) is allowed"),
/* create a SessionMachine object */ /* NOTE: doing return from this function after this point but * before the end is forbidden since it may call SessionMachine::uninit() * (through the ComObjPtr's destructor) which requests the VirtualBox write * lock while still holding the Machine lock in alock so that a deadlock * is possible due to the wrong lock order. */ #
endif /* VBOX_WITH_RESOURCE_USAGE_API */ * Set the session state to Spawning to protect against subsequent * attempts to open a session and to unregister the machine after * Leave the lock before calling the client process -- it will call * because the state is Spawning, so that openRemotesession() and * openExistingSession() calls will fail. This method, called before we * enter the lock again, will fail because of the wrong PID. * Note that mData->mSession.mRemoteControls accessed outside * the lock may not be modified when state is Spawning, so it's safe. /* The failure may occur w/o any error info (from RPC), so provide one */ tr(
"Failed to assign the machine to the session (%Rrc)"),
rc);
/* complete the remote session initialization */ /* get the console from the direct session */ /* assign machine & console to the remote session */ * after openRemoteSession(), the first and the only * entry in remoteControls is that remote session /* The failure may occur w/o any error info (from RPC), so provide one */ tr(
"Failed to assign the machine to the remote session (%Rrc)"),
rc);
/* enter the lock again */ /* Restore the session state */ /* finalize spawning anyway (this is why we don't return on errors above) */ /* Note that the progress object is finalized later */ /* We don't reset mSession.mPid here because it is necessary for * SessionMachine::uninit() to reap the child process later. */ /* Close the remote session, remove the remote control from the list * and reset session state to Closed (@note keep the code in sync * with the relevant part in openSession()). */ /* memorize PID of the directly opened session */ /* memorize the direct session control and cache IUnknown for it */ /* associate the SessionMachine with this Machine */ /* request an IUnknown pointer early from the remote party for later * identity checks (it will be internally cached within mDirectControl /* finalize the progress after setting the state, for consistency */ /* Leave the lock since SessionMachine::uninit() locks VirtualBox which * would break the lock order */ /* uninitialize the created session machine on failure */ * @note Locks this object for writing, calls the client process tr(
"The machine '%ls' is not registered"),
tr(
"A session for the machine '%ls' is currently open (or being opened or closed)"),
/* get the path to the executable */ /* clone the current environment */ /* put new variables to the environment * (ignore empty variable names here since RTEnv API * intentionally doesn't do that) */ if (*p ==
'\n' && (p ==
newEnvStr || *(p -
1) !=
'\\'))
#
ifdef RT_OS_DARWIN /* Avoid Launch Services confusing this with the selector by using a helper app. */#
ifdef RT_OS_WINDOWS /** @todo drop this once the RTProcCreate bug has been fixed */#
else /* !VBOX_WITH_QTGUI */#
endif /* VBOX_WITH_QTGUI */#
else /* !VBOX_WITH_VBOXSDL */#
endif /* !VBOX_WITH_VBOXSDL */ /* Leave space for 2 args, as "headless" needs --vrdp off on non-OSE. */ #
else /* !VBOX_WITH_HEADLESS */#
endif /* !VBOX_WITH_HEADLESS */ tr(
"Invalid session type: '%s'"),
tr(
"Could not launch a process for the machine '%ls' (%Rrc)"),
* Note that we don't leave the lock here before calling the client, * because it doesn't need to call us back if called with a NULL argument. * Leaving the lock herer is dangerous because we didn't prepare the * launch data yet, but the client we've just started may happen to be * too fast and call openSession() that will fail (because of PID, etc.), * so that the Machine will never get out of the Spawning session state. /* inform the session that it will be a remote one */ /* restore the session state */ /* The failure may occur w/o any error info (from RPC), so provide one */ tr(
"Failed to assign the machine to the session (%Rrc)"),
rc);
/* attach launch data to the machine */ * @note Locks this object for writing, calls the client process tr (
"The machine '%ls' does not have an open session"),
* Get the console from the direct session (note that we don't leave the * lock here because GetRemoteConsole must not call us back). /* The failure may occur w/o any error info (from RPC), so provide one */ tr (
"Failed to get a console object from the direct session (%Rrc)"),
rc);
* Leave the lock before calling the client process. It's safe here * since the only thing to do after we get the lock again is to add * the remote control to the list (which doesn't directly influence /* attach the remote session to the machine */ /* The failure may occur w/o any error info (from RPC), so provide one */ tr(
"Failed to assign the machine to the session (%Rrc)"),
/* need to revalidate the state after entering the lock again */ tr(
"The machine '%ls' does not have an open session"),
/* store the control in the list */ * Returns @c true if the given machine has an open direct session and returns * the session machine instance and additional session data (on some platforms) * Note that when the method returns @c false, the arguments remain unchanged. * @param aMachine Session machine object. * @param aControl Direct session control object (optional). * @param aIPCSem Mutex IPC semaphore handle for this machine (optional). * @note locks this object for reading. /* just return false for inaccessible machines */ /* Additional session data */ * Returns @c true if the given machine has an spawning direct session and * returns and additional session data (on some platforms) if so. * Note that when the method returns @c false, the arguments remain unchanged. * @param aPID PID of the spawned direct session process. * @note locks this object for reading. /* just return false for inaccessible machines */ /* Additional session data */ * Called from the client watcher thread to check for unexpected client process * death during Session_Spawning state (e.g. before it successfully opened a * On Win32 and on OS/2, this method is called only when we've got the * direct client's process termination notification, so it always returns @c * On other platforms, this method returns @c true if the client process is * terminated and @c false if it's still alive. * @note Locks this object for writing. /* VirtualBox::addProcessToReap() needs a write lock */ /* the process was already unexpectedly terminated, we just need to set an * error and finalize session spawning */ tr(
"Virtual machine '%ls' has terminated unexpectedly during startup"),
/* PID not yet initialized, skip check. */ tr(
"Virtual machine '%ls' has terminated unexpectedly during startup"),
/* Close the remote session, remove the remote control from the list * and reset session state to Closed (@note keep the code in sync with * the relevant part in checkForSpawnFailure()). */ /* finalize the progress after setting the state, for consistency */ * Checks that the registered flag of the machine can be set according to * the argument and sets it. On success, commits and saves all settings. * @note When this machine is inaccessible, the only valid value for \a * aRegistered is FALSE (i.e. unregister the machine) because unregistered * inaccessible machines are not currently supported. Note that unregistering * an inaccessible machine will \b uninitialize this machine object. Therefore, * the caller must make sure there are no active Machine::addCaller() calls * on the current thread because this will block Machine::uninit(). * @note Must be called from mParent's write lock. Locks this object and /* wait for state dependants to drop to zero */ /* A special case: the machine is not accessible. */ /* inaccessible machines can only be unregistered */ /* Uninitialize ourselves here because currently there may be no * unregistered that are inaccessible (this state combination is not * supported). Note releasing the caller and leaving the lock before tr(
"The machine '%ls' with UUID {%s} is already registered"),
tr(
"Cannot unregister the machine '%ls' because it is in the Saved state"),
tr(
"Cannot unregister the machine '%ls' because it has %d snapshots"),
tr(
"Cannot unregister the machine '%ls' because it has an open session"),
tr(
"Cannot unregister the machine '%ls' because it has %d medium attachments"),
/* Note that we do not prevent unregistration of a DVD or Floppy image * is attached: as opposed to hard disks detaching such an image * implicitly in this method (which we will do below) won't have any * side effects (like detached orphan base and diff hard disks etc).*/ /* Ensure the settings are saved. If we are going to be registered and * isConfigLocked() is FALSE then it means that no config file exists yet, * so create it by calling saveSettings() too. */ /* more config checking goes here */ /* we may have had implicit modifications we want to fix on success */ /* we may have had implicit modifications we want to cancel on failure*/ * Increases the number of objects dependent on the machine state or on the * registered state. Guarantees that these two states will not change at least * until #releaseStateDependency() is called. * Depending on the @a aDepType value, additional state checks may be made. * These checks will set extended error info on failure. See * #checkStateDependency() for more info. * If this method returns a failure, the dependency is not added and the caller * is not allowed to rely on any particular machine state or registration state * value and may return the failed result code to the upper level. * @param aDepType Dependency type to add. * @param aState Current machine state (NULL if not interested). * @param aRegistered Current registered state (NULL if not interested). * @note Locks this object for writing. /* ensureNoStateDependencies() is waiting for state dependencies to * drop to zero so don't add more. It may make sense to wait a bit * and retry before reporting an error (since the pending state * transition should be really quick) but let's just assert for * now to see if it ever happens on practice. */ tr(
"Machine state change is in progress. Please retry the operation later."));
* Decreases the number of objects dependent on the machine state. * Must always complete the #addStateDependency() call after the state * dependency is no more necessary. /* releaseStateDependency() w/o addStateDependency()? */);
/* inform ensureNoStateDependencies() that there are no more deps */ ///////////////////////////////////////////////////////////////////////////// * Performs machine state checks based on the @a aDepType value. If a check * fails, this method will set extended error info, otherwise it will return * S_OK. It is supposed, that on failure, the caller will immedieately return * the return value of this method to the upper level. * When @a aDepType is AnyStateDep, this method always returns S_OK. * When @a aDepType is MutableStateDep, this method returns S_OK only if the * current state of this machine object allows to change settings of the * machine (i.e. the machine is not registered, or registered but not running * and not saved). It is useful to call this method from Machine setters * before performing any change. * When @a aDepType is MutableOrSavedStateDep, this method behaves the same * as for MutableStateDep except that if the machine is saved, S_OK is also * returned. This is useful in setters which allow changing machine * properties when it is in the saved state. * @param aDepType Dependency type to check. * @note Non Machine based classes should use #addStateDependency() and * #releaseStateDependency() methods or the smart AutoStateDependency * @note This method must be called from under this object's read or write && (
mType !=
IsSessionMachine /** @todo This was just convered raw; Check if Running and Paused should actually be included here... (Live Migration) */ tr(
"The machine is not mutable (state is %s)"),
&& (
mType !=
IsSessionMachine /** @todo This was just convered raw; Check if Running and Paused should actually be included here... (Live Migration) */ tr(
"The machine is not mutable (state is %s)"),
* Helper to initialize all associated child objects and allocate data * This method must be called as a part of the object's initialization procedure * (usually done in the #init() method). * @note Must be called only from #init() or from #registeredInit(). /* allocate data structures */ /* initialize mOSTypeId */ /* create associated BIOS settings object */ /* create an associated VRDPServer object (default is disabled) */ /* create associated serial port objects */ /* create associated parallel port objects */ /* create the audio adapter object (always present, default is disabled) */ /* create the USB controller object (always present, default is disabled) */ /* create associated network adapter objects */ * Helper to uninitialize all associated child objects and to free all data * This method must be called as a part of the object's uninitialization * procedure (usually done in the #uninit() method). * @note Must be called only from #uninit() or from #registeredInit(). /* uninit all children using addDependentChild()/removeDependentChild() * in their init()/uninit() methods */ /* tell all our other child objects we've been uninitialized */ /* Deassociate hard disks (only when a real Machine or a SnapshotMachine * instance is uninitialized; SessionMachine instances refer to real * Machine hard disks). This is necessary for a clean re-initialization of * the VM after successfully re-checking the accessibility state. Note * that in case of normal Machine or SnapshotMachine uninitialization (as * a result of unregistering or discarding the snapshot), outdated hard * disk attachments will already be uninitialized and deleted, so this * code will not affect them. */ /* reset some important fields of mData */ /* free data structures (the essential mData structure is not freed here * since it may be still in use) */ * Makes sure that there are no machine state dependants. If necessary, waits * for the number of dependants to drop to zero. * Make sure this method is called from under this object's write lock to * guarantee that no new dependants may be added when this method returns * @note Locks this object for writing. The lock will be released while waiting * @warning To be used only in methods that change the machine state! /* Wait for all state dependants if necessary */ /* lazy semaphore creation */ /* reset the semaphore before waiting, the last dependant will signal * Changes the machine state and informs callbacks. * This method is not intended to fail so it either returns S_OK or asserts (and * @note Locks this object for writing. /* wait for state dependants to drop to zero */ * Searches for a shared folder with the given logical name * in the collection of shared folders. * @param aName logical name of the shared folder * @param aSharedFolder where to return the found object * @param aSetError whether to set the error info if the folder is * S_OK when found or VBOX_E_OBJECT_NOT_FOUND when not found * must be called from under the object's lock! * Loads all the VM settings by walking down the <Machine> node. * @param aRegistered true when the machine is being loaded on VirtualBox * @note This method is intended to be called only from init(), so it assumes * all machine data fields have appropriate default values when it is called. * @note Doesn't lock any objects. // load and parse machine XML; this will throw on XML or logic errors /* If the stored UUID is not empty, it means the registered machine * is being loaded. Compare the loaded UUID with the stored one taken * from the global registry. */ tr(
"Machine UUID {%RTuuid} in '%s' doesn't match its UUID {%s} in the registry file '%s'"),
/* nameSync (optional, default is true) */ /* look up the object by Id to check it is valid */ tr(
"Invalid saved state file path '%s' (%Rrc)"),
/* snapshotFolder (optional) */ /* currentStateModified (optional, default is true) */ * note: all mUserData members must be assigned prior this point because * we need to commit changes in order to let mUserData be shared by all * snapshot machine instances. /* Snapshot node (optional) */ // there can only be one root snapshot NULL);
// no parent == first snapshot /* Hardware node (required) */ /* Load storage controllers */ * NOTE: the assignment below must be the last thing to do, * otherwise it will be not possible to change the settings * somewehere in the code above because all setters will be * blocked by checkStateDependency(MutableStateDep). /* set the machine state to Aborted or Saved when appropriate */ /* no need to use setMachineState() during init() */ /* no need to use setMachineState() during init() */ /* we assume that error info is set by the thrower */ * Recursively loads all snapshots starting from the given. * @param aNode <Snapshot> node. * @param aCurSnapshotId Current snapshot ID from the settings file. * @param aParentSnapshot Parent snapshot. tr(
"Invalid saved state file path '%s' (%Rrc)"),
/* create a snapshot machine object */ /* create a snapshot object */ /* initialize the snapshot */ /* memorize the first snapshot if necessary */ /* memorize the current snapshot when appropriate */ // now create the children pSnapshot);
// parent = the one we created above * @param aNode <Hardware> node. /* The hardware version attribute (optional). */ /* slot unicity is guaranteed by XML Schema */ // parallel ports (optional) /* Guest properties (optional) */ #
endif /* VBOX_WITH_GUEST_PROPS defined */ * @param aNode <StorageControllers> node. /* Make sure the attached hard disks don't get unregistered until we * associate them with tis machine (important for VMs loaded (opened) after /* Try to find one with the name first. */ tr(
"Storage controller named '%s' already exists"),
/* Set IDE emulation settings (only for AHCI controller). */ /* Load the attached devices now. */ * @param aNode <HardDiskAttachments> node. * @param aRegistered true when the machine is being loaded on VirtualBox * startup, or when a snapshot is being loaded (wchich * currently can happen on startup only) * @param aSnapshotId pointer to the snapshot ID if this is a snapshot machine * @note Lock mParent for reading and hard disks for writing before calling. /* when the machine is being loaded (opened) from a file, it cannot * have hard disks attached (this should not happen normally, * because we don't allow to attach hard disks to an unregistered tr(
"Unregistered machine '%ls' cannot have storage devices attached (found %d attachments)"),
/* paranoia: detect duplicate attachments */ tr(
"Duplicate attachments for storage controller '%s', port %d, device %d of the virtual machine '%ls'"),
/* find a floppy by UUID */ /* find a floppy by host device name */ /// @todo eliminate this conversion /* find a DVD by host device name */ /// @todo eliminate this conversion /* find a hard disk by UUID */ // wrap another error message around the "cannot find hard disk" set by findHardDisk // so the user knows that the bad disk is in a snapshot somewhere tr(
"A differencing image of snapshot {%RTuuid} could not be found. %ls"),
tr(
"Immutable hard disk '%s' with UUID {%RTuuid} cannot be directly attached to snapshot with UUID {%RTuuid} " "of the virtual machine '%ls' ('%s')"),
tr(
"Immutable hard disk '%s' with UUID {%RTuuid} cannot be directly attached to the virtual machine '%ls' ('%s')"),
tr(
"Hard disk '%s' with UUID {%RTuuid} cannot be directly attached to the virtual machine '%ls' ('%s') " "because it has %d differencing child hard disks"),
tr(
"Hard disk '%s' with UUID {%RTuuid} is already attached to the virtual machine '%ls' ('%s')"),
tr(
"Device with unknown type is attached to the virtual machine '%s' ('%s')"),
/* associate the medium with this machine and snapshot */ /* backup mMediaData to let registeredInit() properly rollback on failure * (= limited accessibility) */ * Returns the snapshot with the given UUID or fails of no such snapshot exists. * @param aId snapshot UUID to find (empty UUID refers the first snapshot) * @param aSnapshot where to return the found snapshot * @param aSetError true to set extended error info on failure tr(
"This machine does not have any snapshots"));
tr(
"Could not find a snapshot with UUID {%s}"),
* Returns the snapshot with the given name or fails of no such snapshot. * @param aName snapshot name to find * @param aSnapshot where to return the found snapshot * @param aSetError true to set extended error info on failure tr(
"This machine does not have any snapshots"));
tr(
"Could not find a snapshot named '%ls'"),
aName);
* Returns a storage controller object with the given name. * @param aName storage controller name to find * @param aStorageController where to return the found storage controller * @param aSetError true to set extended error info on failure tr(
"Could not find a storage controller named '%s'"),
* Helper for #saveSettings. Cares about renaming the settings directory and * file if the machine name was changed and about creating a new settings file * if this is a new machine. * @note Must be never called directly but only from #saveSettings(). * @param aRenamed receives |true| if the name was changed and the settings * file was renamed as a result, or |false| otherwise. The * value makes sense only on success. * @param aNew receives |true| if a virgin settings file was created. /* Note: tecnhically, mParent needs to be locked only when the machine is * registered (see prepareSaveSettings() for details) but we don't * currently differentiate it in callers of saveSettings() so we don't * make difference here too. */ /* if we're ready and isConfigLocked() is FALSE then it means * that no config file exists yet (we will create a virgin one) */ /* attempt to rename the settings file if machine name is changed */ /* first, rename the directory if it matches the machine name */ /* new dir and old dir cannot be equal here because of 'if' * above and because name != newName */ /* perform real rename only if the machine is not new */ tr(
"Could not rename the directory '%s' to '%s' to save the settings file (%Rrc)"),
/* then try to rename the settings file itself */ /* get the path to old settings file in renamed directory */ /* perform real rename only if the machine is not new */ tr(
"Could not rename the settings file '%s' to '%s' (%Rrc)"),
/* update m_strConfigFileFull amd mConfigFile */ /* try to get the relative path for mConfigFile */ /* last, try to update the global settings with the new path */ /* revert to old values */ /* update the snapshot folder */ /* update the saved state file path */ /* Update saved state file paths of all online snapshots. * Note that saveSettings() will recognize name change * and will save all snapshots in this case. */ /* silently try to rename everything back */ /* create a virgin config file */ /* ensure the settings directory exists */ tr(
"Could not create a directory '%s' to save the settings file (%Rrc)"),
/* Note: open flags must correlate with RTFileOpen() in lockConfig() */ tr(
"Could not create the settings file '%s' (%Rrc)"),
* Saves and commits machine data, user data and hardware data. * Note that on failure, the data remains uncommitted. * @a aFlags may combine the following flags: * - SaveS_ResetCurStateModified: Resets mData->mCurrentStateModified to FALSE. * Used when saving settings after an operation that makes them 100% * correspond to the settings from the current snapshot. * - SaveS_InformCallbacksAnyway: Callbacks will be informed even if * #isReallyModified() returns false. This is necessary for cases when we * change machine data diectly, not through the backup()/commit() mechanism. * @note Must be called from under mParent write lock (sometimes needed by * #prepareSaveSettings()) and this object's write lock. Locks children for * writing. There is one exception when mParent is unused and therefore may be * left unlocked: if this machine is an unregistered one. /* Note: tecnhically, mParent needs to be locked only when the machine is * registered (see prepareSaveSettings() for details) but we don't * currently differentiate it in callers of saveSettings() so we don't * make difference here too. */ /* make sure child objects are unable to modify the settings while we are /* We ignore changes to user data when setting mCurrentStateModified * because the current state will not differ from the current snapshot * if only user data has been changed (user data is shared by all /* First, prepare to save settings. It will care about renaming the * settings directory and file if the machine name was changed and about * creating a new settings file if this is a new machine. */ // when deleting a snapshot we may or may not have a saved state in the current state, // so let's not assert here please /* try to make the file name relative to the settings file dir */ /// @todo Live Migration: mData->m_pMachineConfigFile->fTeleported = (mData->mMachineState == MachineState_Teleported); /* we assume that error info is set by the thrower */ /* memorize the new modified state */ /* Fire the data change event, even on failure (since we've already * committed all data). This is done only for SessionMachines because * mutable Machine instances are always not registered (i.e. private * to the client process that creates them) and thus don't need to // get reference to the fresh copy of the snapshot on the list and // work on that copy directly to avoid excessive copying later // if (mType == IsSessionMachine) // mParent->onMachineDataChange(mData->mUuid); @todo is this necessary? /* we assume that error info is set by the thrower */ * Saves the VM hardware configuration. It is assumed that the * @param aNode <Hardware> node to save the VM hardware confguration to. /* The hardware version attribute (optional). Automatically upgrade from 1 to 2 when there is no saved state. (ugly!) */ mHWData->
mHWVersion =
"2";
/** @todo Is this safe, to update mHWVersion here? If not some other point needs to be found where this can be done. */ /* Standard and Extended CPUID leafs. */ /* VRDP settings (optional) */ /* USB Controller (required) */ /* Network adapters (required) */ #
endif /* VBOX_WITH_GUEST_PROPS defined */ * Saves the storage controller configuration. * @param aNode <StorageControllers> node to save the VM hardware confguration to. /* Save the port count. */ /* Save IDE emulation settings. */ /* save the devices now. */ * Saves the hard disk confguration. * Saves machine state settings as defined by aFlags * @param aFlags Combination of SaveSTS_* flags. * @note Locks objects for writing. /* This object's write lock is also necessary to serialize file access * (prevent concurrent reads and writes) */ /* try to make the file name relative to the settings file dir */ //@todo live migration mData->m_pMachineConfigFile->fTeleported = (mData->mMachineState == MachineState_Teleported); * Creates differencing hard disks for all normal hard disks attached to this * machine and a new set of attachments to refer to created disks. * Used when taking a snapshot or when discarding the current state. * This method assumes that mMediaData contains the original hard disk attachments * it needs to create diffs for. On success, these attachments will be replaced * with the created diffs. On failure, #deleteImplicitDiffs() is implicitly * called to delete created diffs which will also rollback mMediaData and restore * whatever was backed up before calling this method. * Attachments with non-normal hard disks are left as is. * If @a aOnline is @c false then the original hard disks that require implicit * diffs will be locked for reading. Otherwise it is assumed that they are * already locked for writing (when the VM was started). Note that in the latter * case it is responsibility of the caller to lock the newly created diffs for * writing if this method succeeds. * @param aFolder Folder where to create diff hard disks. * @param aProgress Progress object to run (must contain at least as * many operations left as the number of hard disks * @param aOnline Whether the VM was online prior to this operation. * @note The progress object is not marked as completed, neither on success nor * on failure. This is a responsibility of the caller. * @note Locks this object for writing. /* must be in a protective state because we leave the lock below */ /* lock all attached hard disks early to detect "in use" * situations before creating actual diffs */ /* remember the current list (note that we don't use backup() since * mMediaData may be already backed up) */ /* go through remembered attachments and create diffs for normal hard * disks and attach them */ /* copy the attachment as is */ /** @todo the progress object created in Console::TakeSnaphot * only expects operations for hard disks. Later other * device types need to show up in the progress as well. */ /* leave the lock before the potentially lengthy operation */ /** @todo r=bird: How is the locking and diff image cleaned up if we fail before * the push_back? Looks like we're going to leave medium with the * wrong kind of lock (general issue with if we fail anywhere at all) * and an orphaned VDI in the snapshots folder. */ // at this point, the old image is still locked for writing, but instead // we need the new diff image locked for writing and lock the previously // current one for reading only /* add a new attachment */ /* unlock all hard disks we locked */ * Deletes implicit differencing hard disks created either by * #createImplicitDiffs() or by #AttachMedium() and rolls back mMediaData. * Note that to delete hard disks created by #AttachMedium() this method is * called from #fixupMedia() when the changes are rolled back. * @note Locks this object for writing. /* enumerate new attachments */ /* deassociate and mark for deletion */ /* was this hard disk attached before? */ /* rollback hard disk changes */ /* delete unused implicit diffs */ /* will leave the lock before the potentially lengthy * operation, so protect with the special state (unless already #
if 1 /* HACK ALERT: Just make it kind of work */ /** @todo Fix this hack properly. The LockWrite / UnlockWrite / LockRead changes aren't undone! */ * Looks through the given list of media attachments for one with the given parameters * and returns it, or NULL if not found. The list is a parameter so that backup lists * can be searched as well if needed. * Looks through the given list of media attachments for one with the given parameters * and returns it, or NULL if not found. The list is a parameter so that backup lists * can be searched as well if needed. * Looks through the given list of media attachments for one with the given parameters * and returns it, or NULL if not found. The list is a parameter so that backup lists * can be searched as well if needed. * Perform deferred hard disk detachments on success and deletion of implicitly * created diffs on failure. * Does nothing if the hard disk attachment data (mMediaData) is not changed (not * When the data is backed up, this method will commit mMediaData if @a aCommit is * @c true and rollback it otherwise before returning. * If @a aOnline is @c true then this method called with @a aCommit = @c true * will also unlock the old hard disks for which the new implicit diffs were * created and will lock these new diffs for writing. When @a aCommit is @c * false, this argument is ignored. * @param aCommit @c true if called on success. * @param aOnline Whether the VM was online prior to this operation. * @note Locks this object for writing! /* enumerate new attachments */ /** @todo convert all this Machine-based voodoo to MediumAttachment /* convert implicit attachment to normal */ /* also, relock the old hard disk which is a base for the * new diff for reading if the VM is online */ /* make the relock atomic */ /* XXX actually we should replace the old entry in that * vector (write lock => read lock) but this would take * some effort. So lets just ignore the error code in * SessionMachine::unlockMedia(). */ /* was this medium attached before? */ /* yes: remove from old to avoid de-association */ /* enumerate remaining old attachments and de-associate from the * current machine state */ /* Detach only hard disks, since DVD/floppy media is detached * instantly in MountMedium. */ /* now de-associate from the current machine state */ /* unlock since not used anymore */ /* the disk may be alredy relocked for reading above */ /* commit the hard disk changes */ /* attach new data to the primary machine and reshare it */ /* enumerate new attachments */ /* Fix up the backrefs for DVD/floppy media. */ /* Fix up the backrefs for DVD/floppy media. */ /** @todo convert all this Machine-based voodoo to MediumAttachment * based rollback logic. */ // @todo r=dj the below totally fails if this gets called from Machine::rollback(), // which gets called if Machine::registeredInit() fails... * Returns true if the settings file is located in the directory named exactly * as the machine. This will be true if the machine settings structure was * created by default in #openConfigLoader(). * @param aSettingsDir if not NULL, the full machine settings file directory * name will be assigned there. * @note Doesn't lock anything. * @note Not thread safe (must be called from this object's lock). /* if we don't rename anything on name change, return false shorlty */ * @note Locks objects for reading! * Returns the logical OR of data.hasActualChanges() of this and all child * @param aIgnoreUserData @c true to ignore changes to mUserData * @note Locks objects for reading! /* see whether any of the devices has changed its data */ * Discards all changes to machine settings. * @param aNotify Whether to notify the direct session about changes or not. * @note Locks objects for writing! /* check for changes in own data */ /* unitialize all new devices (absent in the backed up list). */ /* rollback any changes to devices after restoring the list */ /* check for changes in child objects */ /* inform the direct session about changes */ * Commits all the changes to machine settings. * Note that this operation is supposed to never fail. * @note Locks this object and children for writing. * use safe commit to ensure Snapshot machines (that share mUserData) * will still refer to a valid memory location /* Commit all changes to new controllers (this will reshare data with * peers for thos who have peers) */ /* look if this controller has a peer device */ /* no peer means the device is a newly created one; * create a peer owning data this device share it with */ /* remove peer from the old list */ /* and add it to the new list */ /* uninit old peer's controllers that are left */ /* attach new list of controllers to our peer */ /* we have no peer (our parent is the newly created machine); * just commit changes to devices */ /* the list of controllers itself is not changed, * just commit changes to controllers themselves */ /* attach new data to the primary machine and reshare it */ /* mMediaData is reshared by fixupMedia */ // mPeer->mMediaData.attach(mMediaData); * Copies all the hardware data from the given machine. * Currently, only called when the VM is being restored from a snapshot. In * particular, this implies that the VM is not running during this method's * @note This method must be called from under this object's lock. * @note This method doesn't call #commit(), so all data remains backed up and // create copies of all shared folders (mHWData after attiching a copy // contains just references to original objects) /* create private copies of all controllers */ "Percentage of processor time spent in user mode by VM process.");
"Percentage of processor time spent in kernel mode by VM process.");
"Size of resident portion of VM process in memory.");
/* Create and register base metrics */ #
endif /* VBOX_WITH_RESOURCE_USAGE_API *///////////////////////////////////////////////////////////////////////////////// /* set the proper type to indicate we're the SessionMachine instance */ * @note Must be called only by Machine::openSession() from its own write lock. /* Enclose the state transition NotReady->InInit->Ready */ /* create the interprocess semaphore */ (
"Cannot create IPC mutex '%ls', err=%d",
(
"Cannot create IPC mutex '%s', arc=%ld",
/** @todo Check that this still works correctly. */ #
else /* !VBOX_WITH_NEW_SYS_V_KEYGEN */#
endif /* !VBOX_WITH_NEW_SYS_V_KEYGEN */ tr(
"Cannot create IPC semaphore. Most likely your host kernel lacks " "support for SysV IPC. Check the host kernel configuration for " /* ENOSPC can also be the result of VBoxSVC crashes without properly freeing tr(
"Cannot create IPC semaphore because the system limit for the " "maximum number of semaphore sets (SEMMNI), or the system wide " "maximum number of sempahores (SEMMNS) would be exceeded. The " "current set of SysV IPC semaphores can be determined from " tr(
"Cannot create IPC semaphore because the system-imposed limit " "on the maximum number of allowed semaphores or semaphore " "identifiers system-wide would be exceeded"));
/* set the initial value to 1 */ /* memorize the peer Machine */ /* share the parent pointer */ /* take the pointers to data to share */ /* create another VRDPServer object that will be mutable */ /* create another audio adapter object that will be mutable */ /* create a list of serial ports that will be mutable */ /* create a list of parallel ports that will be mutable */ /* create another USB controller object that will be mutable */ /* create a list of network adapters that will be mutable */ /* default is to delete saved state on Saved -> PoweredOff transition */ /* Confirm a successful initialization when it's the case */ * Uninitializes this session object. If the reason is other than * Uninit::Unexpected, then this method MUST be called from #checkForDeath(). * @param aReason uninitialization reason * @note Locks mParent + this object for writing. * Strongly reference ourselves to prevent this object deletion after * reference and call the destructor). Important: this must be done before * accessing any members (and before AutoUninitSpan that does it as well). * This self reference will be released as the very last step on return. /* Enclose the state transition Ready->InUninit->NotReady */ /* We've been called by init() because it's failed. It's not really * necessary (nor it's safe) to perform the regular uninit sequense * below, the following is enough. #
endif /* VBOX_WITH_NEW_SYS_V_KEYGEN */ /* We need to lock this object in uninit() because the lock is shared * with mPeer (as well as data we modify below). mParent->addProcessToReap() * and others need mParent lock. */ #
endif /* VBOX_WITH_RESOURCE_USAGE_API */ /* reset the state to Aborted */ /* release all captured USB devices */ /* Console::captureUSBDevices() is called in the VM process only after * setting the machine state to Starting or Restoring. * Console::detachAllUSBDevices() will be called upon successful * termination. So, we need to release USB devices only if there was * an abnormal termination of a running VM. * This is identical to SessionMachine::DetachAllUSBDevices except * for the aAbnormal argument. */ #
endif /* VBOX_WITH_USB */ /* mType is not null when this machine's process has been started by * VirtualBox::OpenRemoteSession(), therefore it is our child. We * need to queue the PID to reap the process (and avoid zombies on /* Uninitialization didn't come from #checkForDeath(), so tell the * client watcher thread to update the set of machines that have open /* uninitialize all remote controls */ * An expected uninitialization can come only from #checkForDeath(). * Otherwise it means that something's got really wrong (for examlple, * the Session implementation has released the VirtualBox reference * before it triggered #OnSessionEnd(), or before releasing IPC semaphore, * etc). However, it's also possible, that the client releases the IPC * semaphore correctly (i.e. before it releases the VirtualBox reference), * but the VirtualBox release event comes first to the server process. * This case is practically possible, so we should not assert on an * unexpected uninit, just log a warning. /* this must be null here (see #OnSessionEnd()) */ /* remove the association between the peer machine and this session machine */ /* reset the rest of session data */ /* close the interprocess semaphore before leaving the exclusive lock */ #
endif /* VBOX_WITH_NEW_SYS_V_KEYGEN */ /* free the essential data structure last */ /* leave the exclusive lock before setting the below two to NULL */ // util::Lockable interface //////////////////////////////////////////////////////////////////////////////// * Overrides VirtualBoxBase::lockHandle() in order to share the lock handle * with the primary Machine instance (mPeer). // IInternalMachineControl methods //////////////////////////////////////////////////////////////////////////////// * @note Locks this object for writing. * @note Locks the same as #setMachineState() does. * @note Locks this object for reading. #
else /* !VBOX_WITH_NEW_SYS_V_KEYGEN */#
endif /* !VBOX_WITH_NEW_SYS_V_KEYGEN */ * Goes through the USB filters of the given machine to see if the given * device matches any filter or not. * @note Locks the same as USBController::hasMatchingFilter() does. * @note Locks the same as Host::captureUSBDevice() does. /* if captureDeviceForVM() fails, it must have set extended error info */ * @note Locks the same as Host::detachUSBDevice() does. * Inserts all machine filters to the USB proxy service and then calls * Host::autoCaptureUSBDevices(). * Called by Console from the VM process upon VM startup. * @note Locks what called methods lock. * Removes all machine filters from the USB proxy service and then calls * Host::detachAllUSBDevices(). * Called by Console from the VM process upon normal VM termination or by * SessionMachine::uninit() upon abnormal VM termination (from under the * @note Locks what called methods lock. * @note Locks this object for writing. * We don't assert below because it might happen that a non-direct session * informs us it is closed right after we've been uninitialized -- it's ok. /* get IInternalSessionControl interface */ /* Creating a Progress object requires the VirtualBox children lock, and * thus locking it here is required by the lock order rules. */ /* The direct session is being normally closed by the client process * ----------------------------------------------------------------- */ /* go to the closing state (essential for all open*Session() calls and * for #checkForDeath()) */ /* set direct control to NULL to release the remote instance */ /* Create the progress object the client will use to wait until * #checkForDeath() is called to uninitialize this session object after * it releases the IPC semaphore. */ Bstr (
tr (
"Closing session")),
FALSE /* aCancelable */);
/* the remote session is being normally closed */ * @note Locks this object for writing. /* memorize the progress ID and add it to the global collection */ /* stateFilePath is null when the machine is not running */ /* fill in the snapshot data */ /* set the state to Saving (this is expected by Console::SaveState()) */ * @note Locks mParent + this object for writing. /* endSavingState() need mParent lock */ * on success, set the state to Saved; * on failure, set the state to the state we had when BeginSavingState() was * called (this is expected by Console::SaveState() and * Console::saveStateThread()) * @note Locks this object for writing. ,
E_FAIL);
/** @todo setError. */ tr(
"Invalid saved state file path '%ls' (%Rrc)"),
/* The below setMachineState() will detect the state transition and will * update the settings file */ /* If it is NULL, keep it NULL. */ * Temporarily reset the registered flag, so that our machine state * changes (i.e. mHWData.backup()) succeed. (isMutable() used in all * setters will return FALSE for a Machine instance if mRegistered is TRUE). * This is copied from registeredInit(), and may or may not be the right /* Restore the mRegistered flag. */ return E_POINTER;
/* aValue can be NULL to indicate deletion */ * Convert input up front. * Now grab the object lock, validate the state and do the update. /** @todo r=bird: The careful memory handling doesn't work out here because * the catch block won't undo any damange we've done. So, if push_back throws * bad_alloc then you've lost the value. * Another thing. Doing a linear search here isn't extremely efficient, esp. * since values that changes actually bubbles to the end of the list. Using * something that has an efficient lookup and can tollerate a bit of updates * would be nice. RTStrSpace is one suggestion (it's not perfect). Some * combination of RTStrCache (for sharing names and getting uniqueness into * the bargain) and hash/tree is another. */ * Send a callback notification if appropriate // public methods only for internal purposes ///////////////////////////////////////////////////////////////////////////// * Called from the client watcher thread to check for expected or unexpected * death of the client process that has a direct session to this machine. * On Win32 and on OS/2, this method is called only when we've got the * mutex (i.e. the client has either died or terminated normally) so it always * returns @c true (the client is terminated, the session machine is * On other platforms, the method returns @c true if the client process has * terminated normally or abnormally and the session machine was uninitialized, * and @c false if the client process is still alive. * @note Locks this object for writing. /* Enclose autoCaller with a block because calling uninit() from under it /* return true if not ready, to cause the client watcher to exclude * the corresponding session from watching */ /* Determine the reason of death: if the session state is Closing here, * everything is fine. Otherwise it means that the client did not call * OnSessionEnd() before it released the IPC semaphore. This may happen * either because the client process has abnormally terminated, or * because it simply forgot to call ISession::Close() before exiting. We * threat the latter also as an abnormal termination (see * Session::uninit() for details). */ /* release the IPC mutex */ /* release the IPC mutex */ /* the semaphore is signaled, meaning the session is terminated */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * @note Locks this object for reading. /* ignore notifications sent after #OnSessionEnd() is called */ * Returns @c true if this machine's USB controller reports it has a matching * filter for the given USB device and @c false otherwise. * @note Locks this object for reading. /* silently return if not ready -- this method may be called after the * direct machine session has been called */ /** @todo Live Migration: snapshoting & teleporting. Need to fend things of * @note The calls shall hold no locks. Will temporarily lock this object for reading. /* This notification may happen after the machine object has been * uninitialized (the session was closed), so don't assert. */ /* fail on notifications sent after #OnSessionEnd() is called, it is * expected by the caller */ /* No locks should be held at this point. */ * @note The calls shall hold no locks. Will temporarily lock this object for reading. /* This notification may happen after the machine object has been * uninitialized (the session was closed), so don't assert. */ /* fail on notifications sent after #OnSessionEnd() is called, it is * expected by the caller */ /* No locks should be held at this point. */ ///////////////////////////////////////////////////////////////////////////// * Helper method to finalize saving the state. * @note Must be called from under this object's lock. * @param aSuccess TRUE if the snapshot has been taken successfully * @note Locks mParent + this objects for writing. /* saveSettings() needs mParent lock */ /* save all VM settings */ /* delete the saved state file (it might have been already created) */ /* remove the completed progress object */ /* clear out the temporary saved state data */ * Locks the attached media. * All attached hard disks are locked for writing and DVD/floppy are locked for * reading. Parents of attached hard disks (if any) are locked for reading. * This method also performs accessibility check of all media it locks: if some * media is inaccessible, the method will return a failure and a bunch of * extended error info objects per each inaccessible medium. * Note that this method is atomic: if it returns a success, all media are * locked as described above; on failure no media is locked at all (all * succeeded individual locks will be undone). * This method is intended to be called when the machine is in Starting or * Restoring state and asserts otherwise. * The locks made by this method must be undone by calling #unlockMedia() when /* Lock all medium objects attached to the VM. * Get status for inaccessible media as well. */ /** @todo split out the media locking, and put it into /* accessibility check must be first, otherwise locking * interferes with getting the medium state. */ /* collect multiple errors */ /* be in sync with MediumBase::setStateError() */ tr(
"Medium '%ls' is not accessible. %ls"),
/* HardDisk and Floppy medium must be locked for writing */ /* DVD medium must be locked for reading */ /* no locks or callers here since there should be no way to * change the hard disk parent at this point (as it is still * attached to the machine) */ /* Unlock all locked media on failure */ * Undoes the locks made by by #lockMedia(). /* we may be holding important error info on the current thread; /* The second can happen if an object was re-locked in * Machine::fixupMedia(). The last can happen when e.g a DVD/Floppy * image was unmounted at runtime. */ * Helper to change the machine state (reimplementation). * @note Locks this object for writing. (
"oldMachineState=%s, aMachineState=%s\n",
/* detect some state transitions */ /* The EMT thread is about to start */ /* Nothing to do here for now... */ /// @todo NEWMEDIA don't let mDVDDrive and other children /* ignore PoweredOff->Saving->PoweredOff transition when taking a /* The EMT thread has just stopped, unlock attached media. Note that as * opposed to locking that is done from Console, we do unlocking here * because the VM process may have aborted before having a chance to * properly unlock all media it locked. */ * delete the saved state file once the machine has finished * restoring from it (note that Console sets the state from * Restoring to Saved if the VM couldn't restore successfully, * to give the user an ability to fix an error and retry -- * we keep the saved state file in this case) * delete the saved state after Console::DiscardSavedState() is called * or if the VM process (owning a direct VM session) crashed while the // Not sure that deleting the saved state file just because of the // client death before it attempted to restore the VM is a good // thing. But when it crashes we need to go to the Aborted state // which cannot have the saved state file associated... The only // way to fix this is to make the Aborted condition not a VM state // but a bool flag: i.e., when a crash occurs, set it to true and // change the state to PoweredOff or Saved depending on the /* set the current state modified flag to indicate that the current * state is no more identical to the state in the /* redirect to the underlying peer machine */ /* the machine has stopped execution * (or the saved state file was adopted) */ /* the saved state file was adopted */ /* we've been shut down for any reason */ /* no special action so far */ * Sends the current machine state value to the VM process. * @note Locks this object for reading, then calls a client process. /* directControl may be already set to NULL here in #OnSessionEnd() * called too early by the direct session process while there is still * some operation (like discarding the snapshot) in progress. The client * process in this case is waiting inside Session::close() for the * "end session" process object to complete, while #uninit() called by * #checkForDeath() on the Watcher thread is waiting for the pending * operation to complete. For now, we accept this inconsitent behavior * and simply do nothing here. */