#include <File.h>

Inheritance diagram for File:

Collaboration diagram for File:

Classes
class	DataCacheKey

struct	MonitorTarget

Public Member Functions
	File ()

	File (const String &name, Time::Timestamp accessedTime, Time::Timestamp modifiedTime, Time::Timestamp creationTime, uintptr_t inode, class Filesystem pFs, size_t size, File pParent)

virtual	~File ()

virtual uint64_t	read (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) final

virtual uint64_t	write (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) final

virtual physical_uintptr_t	getPhysicalPage (size_t offset)

virtual void	returnPhysicalPage (size_t offset)

virtual void	sync ()

virtual void	sync (size_t offset, bool async)

Time::Timestamp	getCreationTime ()

void	setCreationTime (Time::Timestamp t)

Time::Timestamp	getAccessedTime ()

void	setAccessedTime (Time::Timestamp t)

Time::Timestamp	getModifiedTime ()

void	setModifiedTime (Time::Timestamp t)

String	getName () const

void	getName (String &s) const

virtual String	getFullPath (bool bWithLabel=true)

virtual void	truncate ()

size_t	getSize ()

void	setSize (size_t sz)

virtual bool	isSymlink ()

virtual bool	isDirectory ()

virtual bool	isPipe () const

virtual bool	isFifo () const

virtual bool	isSocket () const

uintptr_t	getInode () const

virtual void	setInode (uintptr_t inode)

Filesystem *	getFilesystem () const

void	setFilesystem (Filesystem *pFs)

virtual void	fileAttributeChanged ()

virtual void	increaseRefCount (bool bIsWriter)

virtual void	decreaseRefCount (bool bIsWriter)

void	setPermissions (uint32_t perms)

uint32_t	getPermissions () const

void	setUid (size_t uid)

size_t	getUid () const

void	setGid (size_t gid)

size_t	getGid () const

File *	getParent () const

virtual int	select (bool bWriting=false, int timeout=0)

void	monitor (Thread pThread, Event pEvent)

void	cullMonitorTargets (Thread *pThread)

virtual bool	supports (const size_t command) const

virtual int	command (const size_t command, void *buffer)

virtual size_t	getBlockSize () const

void	enableDirect ()

void	disableDirect ()

virtual void	preallocate (size_t expectedSize, bool zero=true)

virtual File *	open ()

Protected Member Functions
virtual bool	isBytewise () const

virtual uint64_t	readBytewise (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true)

virtual uint64_t	writeBytewise (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true)

virtual uintptr_t	readBlock (uint64_t location)

virtual void	writeBlock (uint64_t location, uintptr_t addr)

virtual void	extend (size_t newSize)

virtual void	extend (size_t newSize, uint64_t location, uint64_t size)

void	dataChanged ()

void	getFilesystemLabel (HugeStaticString &s)

virtual void	pinBlock (uint64_t location)

virtual void	unpinBlock (uint64_t location)

void	evict (uint64_t location)

void	setPermissionsOnly (uint32_t perms)

void	setUidOnly (size_t uid)

void	setGidOnly (size_t gid)

Static Protected Member Functions
static void	writeCallback (CacheConstants::CallbackCause cause, uintptr_t loc, uintptr_t page, void *meta)

Protected Attributes
String	m_Name

Time::Timestamp	m_AccessedTime

Time::Timestamp	m_ModifiedTime

Time::Timestamp	m_CreationTime

uintptr_t	m_Inode

class Filesystem *	m_pFilesystem

size_t	m_Size

File *	m_pParent

size_t	m_nWriters

size_t	m_nReaders

size_t	m_Uid

size_t	m_Gid

uint32_t	m_Permissions

HashTable< DataCacheKey, uintptr_t >	m_DataCache

bool	m_bDirect

Cache	m_FillCache

Mutex	m_Lock

List< MonitorTarget * >	m_MonitorTargets

Private Member Functions
	File (const File &file)

File &	operator= (const File &)

uintptr_t	getCachedPage (size_t block, bool locked=true)

void	setCachedPage (size_t block, uintptr_t value, bool locked=true)

bool	useFillCache () const

uintptr_t	readIntoCache (uintptr_t block)

Friends
class	Filesystem

Detailed Description

A File is a regular file - it is also the superclass of Directory, Symlink and Pipe.

Definition at line 66 of file File.h.

Constructor & Destructor Documentation

File::File ( )

Constructor, creates an invalid file.

Definition at line 68 of file File.cc.

Referenced by RtcFile::command(), FramebufferFile::command(), and NullFile::writeBytewise().

Here is the caller graph for this function:

File::File ( const File & file )

private

Copy constructors are hidden - unused!

File::File	(	const String &	name,
		Time::Timestamp	accessedTime,
		Time::Timestamp	modifiedTime,
		Time::Timestamp	creationTime,
		uintptr_t	inode,
		class Filesystem *	pFs,
		size_t	size,
		File *	pParent
	)

Constructor, should be called only by a Filesystem.

Definition at line 84 of file File.cc.

References getBlockSize(), and setCachedPage().

File::~File ( )

virtual

Destructor - doesn't do anything.

Definition at line 111 of file File.cc.

Member Function Documentation

int File::command	(	const size_t	command,
		void *	buffer
	)

virtual

Handle a command.

Reimplemented in FramebufferFile, and RtcFile.

Definition at line 544 of file File.cc.

void File::cullMonitorTargets ( Thread * pThread )

Walks the monitor-target queue, removing all for pThread .

Definition at line 691 of file File.cc.

void File::dataChanged ( )

protected

Internal function to notify all registered MonitorTargets.

Definition at line 654 of file File.cc.

References Scheduler::instance(), Thread::sendEvent(), and Scheduler::yield().

Referenced by Pipe::decreaseRefCount(), ConsolePhysicalFile::performInject(), PsAuxFile::select(), and Pipe::writeBytewise().

Here is the caller graph for this function:

void File::disableDirect ( )

Disables direct mode (use File-level cache).

Definition at line 559 of file File.cc.

void File::enableDirect ( )

Enables direct mode (no File-level cache).

Definition at line 554 of file File.cc.

void File::evict ( uint64_t location )

protected

Removes the given location from the VFS-level File cache.

Each File offers read() and write(), which in turn call readBlock. The result from readBlock is cached at the File object level in such a way that requires notification from the File subclass when the address returned from readBlock is no longer valid.

Definition at line 634 of file File.cc.

References getBlockSize(), and setCachedPage().

void File::extend ( size_t newSize )

protectedvirtual

Internal function to extend a file to be at least the given size.

Reimplemented in FatFile, and Ext2File.

Definition at line 615 of file File.cc.

Referenced by extend(), and write().

Here is the caller graph for this function:

void File::extend	(	size_t	newSize,
		uint64_t	location,
		uint64_t	size
	)

protectedvirtual

Does the same thing as extend() but with an optional hint indicating that the upcoming write will fill an entire block. This hint can be used to do things like avoid zeroing the block that would otherwise be written over anyway.

Reimplemented in FatFile, and Ext2File.

Definition at line 621 of file File.cc.

References extend().

Time::Timestamp File::getAccessedTime ( )

Returns the time the file was last accessed.

Definition at line 389 of file File.cc.

Referenced by Iso9660Directory::cacheDirectoryContents().

Here is the caller graph for this function:

size_t File::getBlockSize ( ) const

virtual

Function to retrieve the block size returned by readBlock.

Note: This must be constant throughout the life of the file.

Reimplemented in ConsoleFile, Ext2File, Iso9660File, and RawFsFile.

Definition at line 549 of file File.cc.

References PhysicalMemoryManager::getPageSize().

Referenced by evict(), File(), getPhysicalPage(), read(), FatFile::readBlock(), readIntoCache(), returnPhysicalPage(), sync(), useFillCache(), write(), FatFile::writeBlock(), and writeCallback().

Here is the caller graph for this function:

uintptr_t File::getCachedPage	(	size_t	block,
		bool	locked = `true`
	)

private

Retrieve a page from our cache.

Definition at line 760 of file File.cc.

Referenced by getPhysicalPage(), and readIntoCache().

Here is the caller graph for this function:

Time::Timestamp File::getCreationTime ( )

Returns the time the file was created.

Definition at line 378 of file File.cc.

Referenced by Iso9660Directory::cacheDirectoryContents().

Here is the caller graph for this function:

void File::getFilesystemLabel ( HugeStaticString & s )

protected

Internal function to get the filesystem label for this file.

Definition at line 713 of file File.cc.

References Filesystem::getVolumeLabel().

Referenced by getFullPath().

Here is the caller graph for this function:

String File::getFullPath ( bool bWithLabel = true )

virtual

Obtains the full path of the File.

Definition at line 718 of file File.cc.

References ERROR, getFilesystemLabel(), and getName().

Referenced by UnixSocketSyscalls::bind(), FileDescriptor::FileDescriptor(), Filesystem::findNode(), FatFilesystem::getVolumeLabel(), FileDescriptor::operator=(), PosixSubsystem::parseShebang(), readBlock(), and FileDescriptor::~FileDescriptor().

Here is the caller graph for this function:

Time::Timestamp File::getModifiedTime ( )

Returns the time the file was last modified.

Definition at line 400 of file File.cc.

Referenced by Iso9660Directory::cacheDirectoryContents().

Here is the caller graph for this function:

String File::getName ( ) const

Returns the name of the file.

Definition at line 411 of file File.cc.

Referenced by RawFsDir::addEntry(), FatDirectory::addEntry(), Directory::addEphemeralFile(), UnixSocketSyscalls::bind(), FatFilesystem::findFreeCluster(), getFullPath(), ProcFs::initialise(), DevFs::initialise(), PosixSubsystem::invoke(), Pipe::isFifo(), Pipe::isPipe(), PosixSubsystem::loadElf(), DynamicLinker::loadObject(), DynamicLinker::loadProgram(), MemoryMapManager::mapFile(), VirtualTerminalManager::openInactive(), Ext2Filesystem::remove(), FatDirectory::removeEntry(), RawFsDir::removeRecursive(), MemoryMappedFile::setPermissions(), RamFile::unpinBlock(), and UnixSocket::writeBytewise().

Here is the caller graph for this function:

physical_uintptr_t File::getPhysicalPage ( size_t offset )

virtual

Get the physical address for the given offset into the file. Returns (physical_uintptr_t) ~0 if the offset isn't in the cache.

Reimplemented in MemFile.

Definition at line 242 of file File.cc.

References getBlockSize(), getCachedPage(), VirtualAddressSpace::getMapping(), PhysicalMemoryManager::getPageSize(), Processor::information(), VirtualAddressSpace::isMapped(), LIKELY, Cache::lookup(), m_FillCache, Cache::pin(), pinBlock(), UNLIKELY, useFillCache(), and WARNING.

Referenced by MemoryMappedFile::setPermissions().

Here is the caller graph for this function:

bool File::isBytewise ( ) const

protectedvirtual

File subclasses can define this and return true if they require read() calls to perform actual data reads, and false if readBlock() is otherwise sufficient.

Reimplemented in Tty0File, UnixSocket, ConsoleFile, RtcFile, TextIO, ConstantFile, PtmxFile, Directory, UptimeFile, ZeroFile, Pipe, MountFile, NullFile, PciDevicesFile, Symlink, RandomFile, MeminfoFile, and PsAuxFile.

Definition at line 577 of file File.cc.

Referenced by Symlink::isSymlink(), read(), readBytewise(), write(), and writeBytewise().

Here is the caller graph for this function:

bool File::isDirectory ( )

virtual

Returns true if the File is actually a directory.

Reimplemented in Directory.

Definition at line 436 of file File.cc.

Referenced by FatDirectory::addEntry(), UnixSocketSyscalls::bind(), RamFs::createDirectory(), RamFs::createFile(), FatFilesystem::createFile(), Ext2Filesystem::createLink(), Ext2Filesystem::createNode(), FatFilesystem::createSymlink(), Filesystem::findNode(), Filesystem::findParent(), Directory::fromFile(), Iso9660Filesystem::getVolumeLabel(), FatFilesystem::getVolumeLabel(), UnixFilesystem::getVolumeLabel(), PosixSubsystem::parseShebang(), Ext2Filesystem::remove(), Filesystem::remove(), RamFs::remove(), and FatDirectory::removeEntry().

Here is the caller graph for this function:

bool File::isFifo ( ) const

virtual

Returns true if the File is actually a fifo.

Reimplemented in Pipe.

Definition at line 446 of file File.cc.

Referenced by Pipe::fromFile().

Here is the caller graph for this function:

bool File::isPipe ( ) const

virtual

Returns true if the File is actually a pipe.

Reimplemented in Pipe.

Definition at line 441 of file File.cc.

Referenced by Pipe::fromFile().

Here is the caller graph for this function:

bool File::isSocket ( ) const

virtual

Returns true if the File is actually a socket.

Reimplemented in UnixSocket.

Definition at line 451 of file File.cc.

Referenced by UnixSocketSyscalls::connect(), and UnixSocketSyscalls::sendto_msg().

Here is the caller graph for this function:

bool File::isSymlink ( )

virtual

Returns true if the File is actually a symlink.

Reimplemented in Symlink.

Definition at line 431 of file File.cc.

Referenced by FatDirectory::addEntry(), Ext2Filesystem::createLink(), Ext2Filesystem::createNode(), Filesystem::findNode(), Symlink::fromFile(), DynamicLinker::loadObject(), DynamicLinker::loadProgram(), PosixSubsystem::parseShebang(), Ext2Filesystem::remove(), and FatDirectory::removeEntry().

Here is the caller graph for this function:

void File::monitor	(	Thread *	pThread,
		Event *	pEvent
	)

Causes the event pEvent to be dispatched to pThread when activity occurs on this File. Activity includes the file becoming available for reading, writing or erroring.

Definition at line 683 of file File.cc.

Referenced by IoEvent::IoEvent().

Here is the caller graph for this function:

File * File::open ( )

virtual

Obtain the actual File object to use when opening this file.

This allows a File to exist and perform logic on an open() before returning either itself or some other File object. Some files require side effects as part of their opening, this facilitates that.

Reimplemented in Tty0File, and PtmxFile.

Definition at line 572 of file File.cc.

Referenced by Framebuffer::initialise().

Here is the caller graph for this function:

void File::pinBlock ( uint64_t location )

protectedvirtual

Pins the given page.

If your File subclass uses a Cache for readBlock, this method should be implemented to call Cache::pin. The VFS layer calls this method when it determines it is about to give a physical page to an upper layer, and therefore will be unable to guarantee the virtual page's dirty status is a correct reflection of the page's state.

Reimplemented in FatFile, Ext2File, and RamFile.

Definition at line 626 of file File.cc.

Referenced by getPhysicalPage().

Here is the caller graph for this function:

void File::preallocate	(	size_t	expectedSize,
		bool	zero = `true`
	)

virtual

Optionally preallocates blocks to fit the given size.

Reimplemented in Ext2File.

Definition at line 564 of file File.cc.

uint64_t File::read	(	uint64_t	location,
		uint64_t	size,
		uintptr_t	buffer,
		bool	bCanBlock = `true`
	)

finalvirtual

Reads from the file.

Parameters

[in]	buffer	Buffer to write the read data into. Can be null, in which case the data can be found by calling getPhysicalPage.
[in]	bCanBlock	Whether or not the File can block when reading

Todo:: consider caching this still

Definition at line 116 of file File.cc.

References ERROR, getBlockSize(), PhysicalMemoryManager::getPageSize(), isBytewise(), readBytewise(), readIntoCache(), and useFillCache().

Referenced by Symlink::initialise(), PosixSubsystem::invoke(), PosixSubsystem::parseShebang(), and MemoryMappedFile::setPermissions().

Here is the caller graph for this function:

uintptr_t File::readBlock ( uint64_t location )

protectedvirtual

Internal function to retrieve an aligned 512byte section of the file.

Reimplemented in FramebufferFile, FatFile, Iso9660File, Ext2File, RamFile, and RawFsFile.

Definition at line 602 of file File.cc.

References assert, ERROR, and getFullPath().

Referenced by readIntoCache().

Here is the caller graph for this function:

uint64_t File::readBytewise	(	uint64_t	location,
		uint64_t	size,
		uintptr_t	buffer,
		bool	bCanBlock = `true`
	)

protectedvirtual

Reads bytes from the file, if isBytewise() == true.

Reimplemented in ConsolePhysicalFile, ConsoleSlaveFile, Tty0File, ConsoleMasterFile, RtcFile, ConstantFile, PtmxFile, TextIO, UnixSocket, UptimeFile, ZeroFile, MountFile, NullFile, PciDevicesFile, Pipe, FatSymlink, RandomFile, Ext2Symlink, PsAuxFile, and MeminfoFile.

Definition at line 582 of file File.cc.

References FATAL, and isBytewise().

Referenced by Pipe::fromFile(), and read().

Here is the caller graph for this function:

uintptr_t File::readIntoCache ( uintptr_t block )

private

Read the given block into the relevant cache.

Todo:: handle readBlock failing here

Definition at line 816 of file File.cc.

References ERROR, getBlockSize(), getCachedPage(), PhysicalMemoryManager::getPageSize(), Cache::insert(), m_FillCache, Cache::markNoLongerEditing(), NOTICE, readBlock(), setCachedPage(), and useFillCache().

Referenced by read(), and write().

Here is the caller graph for this function:

void File::returnPhysicalPage ( size_t offset )

virtual

Specifies that the system is done with the physical page retrieved from getPhysicalPage now. Allows the physical page to be evicted from the file cache again.

Reimplemented in MemFile.

Definition at line 315 of file File.cc.

References getBlockSize(), PhysicalMemoryManager::getPageSize(), m_FillCache, Cache::release(), UNLIKELY, unpinBlock(), and useFillCache().

int File::select	(	bool	bWriting = `false`,
		int	timeout = `0`
	)

virtual

Similar to POSIX's select() function

Returns: 1 if ready for reading/writing, 0 otherwise

Note: Default implementation says always ready to read/write so be sure to override if that's not right

Reimplemented in ConsolePhysicalFile, TextIO, UnixSocket, ConsoleFile, Pipe, and PsAuxFile.

Definition at line 534 of file File.cc.

Referenced by Pipe::fromFile().

Here is the caller graph for this function:

void File::setAccessedTime ( Time::Timestamp t )

Sets the time the file was last accessed.

Definition at line 394 of file File.cc.

Referenced by Ext2Filesystem::createNode().

Here is the caller graph for this function:

void File::setCachedPage	(	size_t	block,
		uintptr_t	value,
		bool	locked = `true`
	)

private

Set a page in our cache.

Definition at line 778 of file File.cc.

References assert.

Referenced by evict(), File(), readIntoCache(), and writeCallback().

Here is the caller graph for this function:

void File::setCreationTime ( Time::Timestamp t )

Sets the time the file was created.

Definition at line 383 of file File.cc.

void File::setGidOnly ( size_t gid )

protected

Set GID without raising fileAttributeChanged.

Definition at line 649 of file File.cc.

Referenced by RtcFile::command(), FramebufferFile::command(), Ext2Directory::Ext2Directory(), Ext2File::Ext2File(), Ext2Symlink::Ext2Symlink(), and NullFile::writeBytewise().

Here is the caller graph for this function:

void File::setModifiedTime ( Time::Timestamp t )

Sets the time the file was last modified.

Definition at line 405 of file File.cc.

Referenced by Ext2Filesystem::createNode().

Here is the caller graph for this function:

void File::setPermissionsOnly ( uint32_t perms )

protected

Set permissions without raising fileAttributeChanged.

Definition at line 639 of file File.cc.

Referenced by RtcFile::command(), FramebufferFile::command(), Ext2Directory::Ext2Directory(), Ext2File::Ext2File(), Ext2Symlink::Ext2Symlink(), and NullFile::writeBytewise().

Here is the caller graph for this function:

void File::setUidOnly ( size_t uid )

protected

Set UID without raising fileAttributeChanged.

Definition at line 644 of file File.cc.

Referenced by RtcFile::command(), FramebufferFile::command(), Ext2Directory::Ext2Directory(), Ext2File::Ext2File(), Ext2Symlink::Ext2Symlink(), and NullFile::writeBytewise().

Here is the caller graph for this function:

bool File::supports ( const size_t command ) const

virtual

Does this File object support the given integer-based command?

Reimplemented in FramebufferFile, and RtcFile.

Definition at line 539 of file File.cc.

void File::sync ( )

virtual

Sync all cached pages for the file back to disk.

Default implementation calls writeBlock; only override if your File subclass does not actually expose readBlock/writeBlock, or if it already overrides read() or write().

Definition at line 351 of file File.cc.

References getBlockSize(), and writeBlock().

void File::sync	(	size_t	offset,
		bool	async
	)

virtual

Trigger a sync of an inner cache back to disk.

Reimplemented in FatFile, and Ext2File.

Definition at line 374 of file File.cc.

void File::truncate ( )

virtual

Delete all data from the file.

Reimplemented in Ext2Symlink, Ext2File, Ext2Directory, FatDirectory, and RamFile.

Definition at line 568 of file File.cc.

void File::unpinBlock ( uint64_t location )

protectedvirtual

Unpins the given page.

Reimplemented in FatFile, Ext2File, and RamFile.

Definition at line 630 of file File.cc.

Referenced by returnPhysicalPage().

Here is the caller graph for this function:

bool File::useFillCache ( ) const

private

Indicate whether the 'fill cache' is needed to handle sub-page block sizes.

Definition at line 804 of file File.cc.

References getBlockSize(), and PhysicalMemoryManager::getPageSize().

Referenced by getPhysicalPage(), read(), readIntoCache(), and returnPhysicalPage().

Here is the caller graph for this function:

uint64_t File::write	(	uint64_t	location,
		uint64_t	size,
		uintptr_t	buffer,
		bool	bCanBlock = `true`
	)

finalvirtual

Writes to the file.

Parameters

[in] bCanBlock Whether or not the File can block when reading

Todo:: consider caching this still

Definition at line 183 of file File.cc.

References ERROR, extend(), getBlockSize(), isBytewise(), readIntoCache(), writeBlock(), and writeBytewise().

Referenced by Ext2Filesystem::createNode(), FatFilesystem::createSymlink(), DevFs::initialise(), ConsolePhysicalFile::readBytewise(), and UnixSocketSyscalls::sendto_msg().

Here is the caller graph for this function:

void File::writeBlock	(	uint64_t	location,
		uintptr_t	addr
	)

protectedvirtual

Internal function to write a block retrieved with readBlock back to the file. The address of the block is provided for convenience.

Reimplemented in FatFile, and Ext2File.

Definition at line 611 of file File.cc.

Referenced by sync(), write(), and writeCallback().

Here is the caller graph for this function:

uint64_t File::writeBytewise	(	uint64_t	location,
		uint64_t	size,
		uintptr_t	buffer,
		bool	bCanBlock = `true`
	)

protectedvirtual

Writes bytes to the file, if isBytewise() == true.

Reimplemented in ConsolePhysicalFile, ConsoleSlaveFile, Tty0File, ConsoleMasterFile, RtcFile, ConstantFile, PtmxFile, TextIO, UnixSocket, UptimeFile, ZeroFile, MountFile, NullFile, PciDevicesFile, FatSymlink, Pipe, RandomFile, Ext2Symlink, PsAuxFile, and MeminfoFile.

Definition at line 592 of file File.cc.

References FATAL, and isBytewise().

Referenced by Pipe::fromFile(), and write().

Here is the caller graph for this function:

void File::writeCallback	(	CacheConstants::CallbackCause	cause,
		uintptr_t	loc,
		uintptr_t	page,
		void *	meta
	)

staticprotected

Called by a cache to write back changed data to disk.

File subclasses that use a Cache for readBlock can utilise this as the callback on their Cache instance to get a write-back notification.

Todo:: handle block size < 4K??

Definition at line 37 of file File.cc.

References getBlockSize(), PhysicalMemoryManager::getPageSize(), setCachedPage(), WARNING, and writeBlock().

Referenced by FatFile::FatFile().

Here is the caller graph for this function:

Member Data Documentation

Cache File::m_FillCache

protected

This cache is necessary to handle filesystems with block sizes that are smaller than the native page size. For these filesystems, to perform memory maps we read native page size blocks into this cache, and then return pages from it directly. This is expected to somewhat increase memory usage and reduce performance on non-natively-sized block sizes, but that's an acceptable compromise.

Definition at line 379 of file File.h.

Referenced by getPhysicalPage(), readIntoCache(), and returnPhysicalPage().

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation