System.IO.Strategies.AsyncWindowsFileStreamStrategy Class Reference

Public Member Functions
override Task	CopyToAsync (Stream destination, int bufferSize, CancellationToken cancellationToken)
override ValueTask	DisposeAsync ()
void	Dispose ()
override void	Flush ()
override Task	FlushAsync (CancellationToken cancellationToken)
Task	FlushAsync ()
override long	Seek (long offset, SeekOrigin origin)
override void	SetLength (long value)
unsafe override int	ReadByte ()
override int	Read (byte[] buffer, int offset, int count)
override int	Read (Span< byte > buffer)
unsafe override void	WriteByte (byte value)
override void	Write (byte[] buffer, int offset, int count)
override void	Write (ReadOnlySpan< byte > buffer)
override IAsyncResult	BeginWrite (byte[] buffer, int offset, int count, AsyncCallback callback, object state)
virtual IAsyncResult	BeginWrite (byte[] buffer, int offset, int count, AsyncCallback? callback, object? state)
override void	EndWrite (IAsyncResult asyncResult)
override Task	WriteAsync (byte[] buffer, int offset, int count, CancellationToken cancellationToken)
override ValueTask	WriteAsync (ReadOnlyMemory< byte > source, CancellationToken cancellationToken)
Task	WriteAsync (byte[] buffer, int offset, int count)
override IAsyncResult	BeginRead (byte[] buffer, int offset, int count, AsyncCallback callback, object state)
virtual IAsyncResult	BeginRead (byte[] buffer, int offset, int count, AsyncCallback? callback, object? state)
override int	EndRead (IAsyncResult asyncResult)
override Task< int >	ReadAsync (byte[] buffer, int offset, int count, CancellationToken cancellationToken)
override ValueTask< int >	ReadAsync (Memory< byte > destination, CancellationToken cancellationToken)
Task< int >	ReadAsync (byte[] buffer, int offset, int count)
void	CopyTo (Stream destination)
virtual void	CopyTo (Stream destination, int bufferSize)
Task	CopyToAsync (Stream destination)
Task	CopyToAsync (Stream destination, int bufferSize)
Task	CopyToAsync (Stream destination, CancellationToken cancellationToken)
virtual void	Close ()
object	GetLifetimeService ()
virtual object	InitializeLifetimeService ()

Static Public Member Functions
static Stream	Synchronized (Stream stream)

Static Public Attributes
static readonly Stream	Null = new NullStream()

Protected Member Functions
override void	Dispose (bool disposing)
void	SetLengthCore (long value)
SemaphoreSlim	EnsureAsyncActiveSemaphoreInitialized ()
virtual WaitHandle	CreateWaitHandle ()
virtual void	ObjectInvariant ()
MarshalByRefObject	MemberwiseClone (bool cloneIdentity)

Static Protected Member Functions
static void	ValidateBufferArguments (byte[] buffer, int offset, int count)
static void	ValidateCopyToArguments (Stream destination, int bufferSize)

Protected Attributes
readonly SafeFileHandle	_fileHandle
long	_filePosition
SemaphoreSlim	_asyncActiveSemaphore

Package Functions
	AsyncWindowsFileStreamStrategy (SafeFileHandle handle, FileAccess access)
	AsyncWindowsFileStreamStrategy (string path, FileMode mode, FileAccess access, FileShare share, FileOptions options, long preallocationSize)
void	OnIncompleteOperation (int expectedBytesTransferred, int actualBytesTransferred)
override void	DisposeInternal (bool disposing)
override void	Flush (bool flushToDisk)
override void	Lock (long position, long length)
override void	Unlock (long position, long length)
Task< int >	BeginReadInternal (byte[] buffer, int offset, int count, AsyncCallback callback, object state, bool serializeAsynchronously, bool apm)
Task	BeginWriteInternal (byte[] buffer, int offset, int count, AsyncCallback callback, object state, bool serializeAsynchronously, bool apm)

Properties
override bool	IsAsync [get]
override bool	CanSeek [get]
override bool	CanRead [get]
override bool	CanWrite [get]
override long	Length [get]
bool	LengthCachingSupported [get]
override long	Position [get, set]
override string	Name [get]
override bool	IsClosed [get]
override SafeFileHandle	SafeFileHandle [get]
IntPtr	Handle [get]
virtual bool	CanTimeout [get]
virtual int	ReadTimeout [get, set]
virtual int	WriteTimeout [get, set]

Private Member Functions
async Task	AsyncModeCopyToAsync (Stream destination, int bufferSize, CancellationToken cancellationToken)
bool	HasOverriddenBeginEndRead ()
bool	HasOverriddenBeginEndWrite ()
int	GetCopyBufferSize ()
Task< int >	BeginEndReadAsync (byte[] buffer, int offset, int count)
void	FinishTrackingAsyncOperation (ReadWriteTask task)
Task	BeginEndWriteAsync (byte[] buffer, int offset, int count)

Static Private Member Functions
static void	RunReadWriteTaskWhenReady (Task asyncWaiter, ReadWriteTask readWriteTask)
static void	RunReadWriteTask (ReadWriteTask readWriteTask)
static async Task	FinishWriteAsync (Task writeTask, byte[] localBuffer)

Private Attributes
readonly FileAccess	_access
long	_length = -1L
long	_appendStart
bool	_lengthCanBeCached

Detailed Description

Definition at line 7 of file AsyncWindowsFileStreamStrategy.cs.

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

• source/System.Private.CoreLib/System.IO.Strategies/AsyncWindowsFileStreamStrategy.cs