public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
// Validate arguments as would the base CopyToAsync
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
// And bail early if cancellation has already been requested
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled(cancellationToken));
}
// Then do additional checks as ReadAsync would.
if (_cleanedUp)
{
throw new ObjectDisposedException(this.GetType().FullName);
}
Socket streamSocket = _streamSocket;
if (streamSocket == null)
{
throw new IOException(SR.Format(SR.net_io_readfailure, SR.net_io_connectionclosed));
}
// Do the copy. We get a copy buffer from the shared pool, and we pass both it and the
// socket into the copy as part of the event args so as to avoid additional fields in
// the async method's state machine.
return(CopyToAsyncCore(
destination,
new AwaitableSocketAsyncEventArgs(streamSocket, ArrayPool <byte> .Shared.Rent(bufferSize)),
cancellationToken));
}
public override void CopyTo(Stream destination, int bufferSize)
{
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
EnsureDecompressionMode();
EnsureNotDisposed();
new CopyToStream(this, destination, bufferSize).CopyFromSourceToDestination();
}
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
ArraySegment<byte> buffer;
if (TryGetBuffer(out buffer))
{
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
long pos = Position;
long length = Length;
Position = length;
long bytesToWrite = length - pos;
return destination.WriteAsync(buffer.Array, (int)(buffer.Offset + pos), (int)bytesToWrite, cancellationToken);
}
return base.CopyToAsync(destination, bufferSize, cancellationToken);
}
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
// Validate arguments as would the base CopyToAsync
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
// And bail early if cancellation has already been requested
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled(cancellationToken));
}
// Do the copy. We get a copy buffer from the shared pool, and we pass both it and the
// socket into the copy as part of the event args so as to avoid additional fields in
// the async method's state machine.
return(CopyToAsyncCore(
destination,
new AwaitableSocketAsyncEventArgs(_streamSocket, ArrayPool <byte> .Shared.Rent(bufferSize)),
cancellationToken));
}
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
// Validation as base CopyToAsync would do
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
// Validation as ReadAsync would do
EnsureDecompressionMode();
EnsureNoActiveAsyncOperation();
EnsureNotDisposed();
// Early check for cancellation
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled <int>(cancellationToken));
}
// Do the copy
return(new CopyToAsyncStream(this, destination, bufferSize, cancellationToken).CopyFromSourceToDestination());
}
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
// Validate arguments as would base CopyToAsync
StreamHelpers.ValidateCopyToArgs(this, destination, bufferSize);
// Check that there are no other pending read operations
if (_state.AsyncReadInProgress)
{
throw new InvalidOperationException(SR.net_http_no_concurrent_io_allowed);
}
// Early check for cancellation
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled(cancellationToken));
}
// Check out a buffer and start the copy
return(CopyToAsyncCore(destination, ArrayPool <byte> .Shared.Rent(bufferSize), cancellationToken));
}
public override Task CopyToAsync(
Stream destination,
int bufferSize,
CancellationToken cancellationToken)
{
ArraySegment <byte> buffer;
if (!this.TryGetBuffer(out buffer))
{
return(base.CopyToAsync(destination, bufferSize, cancellationToken));
}
StreamHelpers.ValidateCopyToArgs((Stream)this, destination, bufferSize);
long position = this.Position;
long length = this.Length;
this.Position = length;
long num = length - position;
return(destination.WriteAsync(buffer.Array, (int)((long)buffer.Offset + position), (int)num, cancellationToken));
}
