storage/disk_device/DiskDeviceRoster.cpp

77 	\param device Pointer to a pre-allocated BDiskDevice to be initialized to
78 		   represent the next device.
86 BDiskDeviceRoster::GetNextDevice(BDiskDevice* device)
88 	if (!device)
97 	return device->_SetTo(id, true, neededSize);
101 /*!	\brief Rewinds the device list iterator.
172 BDiskDeviceRoster::UnregisterFileDevice(partition_id device)
174 	if (device < 0)
176 	return _kern_unregister_file_device(device, NULL);
182 	The supplied visitor's Visit(BDiskDevice*) is invoked for each device.
184 	returns \c true. If supplied, \a device is set to the concerned device.
187 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
188 		   to the device at which the iteration was terminated.
194 	BDiskDevice* device)
201 		BDiskDevice* useDevice = device ? device : &deviceOnStack;
216 	disk device and Visit(BPartition*) for each (non-disk device) partition.
218 	returns \c true. If supplied, \a device is set to the concerned device
222 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
223 		   to the device at which the iteration was terminated.
232 	BDiskDevice* device, BPartition** partition)
239 		BDiskDevice* useDevice = device ? device : &deviceOnStack;
251 		else if (device && partition)
263 	returns \c true. If supplied, \a device is set to the concerned device
267 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
268 		   to the device at which the iteration was terminated.
277 	BDiskDevice* device, BPartition** partition)
287 			= VisitEachPartition(&filterVisitor, device, partition);
298 	returns \c true. If supplied, \a device is set to the concerned device
302 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
303 		   to the device at which the iteration was terminated.
312 	BDiskDevice* device, BPartition** partition)
322 			= VisitEachPartition(&filterVisitor, device, partition);
332 	BDiskDevice* device, BPartition** _partition)
342 		virtual bool Visit(BDiskDevice* device)
344 			return Visit(device, 0);
358 	if (VisitEachMountedPartition(&visitor, device, _partition))
369 	BDiskDevice* device, BPartition** _partition)
373 		&& FindPartitionByVolume(volume, device, _partition))
382 	The supplied \a device is initialized to the device identified by \a id.
384 	\param id The ID of the device to be retrieved.
385 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
386 		   to the device identified by \a id.
389 	- \c B_ENTRY_NOT_FOUND: A device with ID \a id could not be found.
393 BDiskDeviceRoster::GetDeviceWithID(int32 id, BDiskDevice* device) const
395 	if (!device)
397 	return device->_SetTo(id, true, 0);
403 	The supplied \a device is initialized to the device the partition
408 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
409 		   to the device the partition identified by \a id resides on.
418 BDiskDeviceRoster::GetPartitionWithID(int32 id, BDiskDevice* device,
421 	if (!device || !partition)
424 	// retrieve the device data
425 	status_t error = device->_SetTo(id, false, 0);
430 	*partition = device->FindDescendant(id);
439 BDiskDeviceRoster::GetDeviceForPath(const char* filename, BDiskDevice* device)
441 	if (!filename || !device)
444 	// get the device ID
450 	// retrieve the device data
451 	return device->_SetTo(id, true, neededSize);
457 	BDiskDevice* device, BPartition** partition)
459 	if (!filename || !device || !partition)
468 	// retrieve the device data
469 	status_t error = device->_SetTo(id, false, neededSize);
474 	*partition = device->FindDescendant(id);
483 	BDiskDevice* device)
485 	if (!filename || !device)
488 	// get the device ID
494 	// retrieve the device data
495 	return device->_SetTo(id, true, neededSize);
499 /*!	\brief Adds a target to the list of targets to be notified on disk device
529 		   device events.
696 /*!	\brief Returns a BDiskDevice for a given device, session or partition ID.
698 	The supplied \a device is initialized to the device the object identified
702 		   the type of object the device shall be retrieved for.
703 	\param id The ID of the device, session or partition to be retrieved.
704 	\param device Pointer to a pre-allocated BDiskDevice to be initialized
705 		   to the device to be retrieved.
708 	- \c B_ENTRY_NOT_FOUND: A device, session or partition respectively with
714 	BDiskDevice *device) const
716 	status_t error = (device ? B_OK : B_BAD_VALUE);
732 		// device
735 			error = reply.FindMessage("device", &archive);
737 			error = device->_Unarchive(&archive);