private static async Task CopyToAsyncCore(Stream destination, AwaitableSocketAsyncEventArgs ea, CancellationToken cancellationToken)
{
try
{
while (true)
{
cancellationToken.ThrowIfCancellationRequested();
int bytesRead = await ea.ReceiveAsync();
if (bytesRead == 0)
{
break;
}
await destination.WriteAsync(ea.Buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
}
}
finally
{
ArrayPool <byte> .Shared.Return(ea.Buffer, clearArray : true);
ea.Dispose();
}
}
/// <exception cref="ObjectDisposedException"/>
public ValueTask <SocketReceiveResult> ReceiveAsync(Memory <byte> buffer, CancellationToken cancellationToken = default)
{
if (!IsDisposed)
{
if (!cancellationToken.IsCancellationRequested)
{
if (_receiveArgs.Reserve())
{
return(_receiveArgs.ReceiveAsync(_socket, buffer));
}
else
{
return(new ValueTask <SocketReceiveResult>(task: Task.FromException <SocketReceiveResult>(SimultaneouslyOperationException())));
}
}
else
{
return(new ValueTask <SocketReceiveResult>(Task.FromCanceled <SocketReceiveResult>(cancellationToken)));
}
}
else
{
return(DisposedValueTask <SocketReceiveResult>());
}
}
internal ValueTask <int> ReceiveAsync(Memory <byte> buffer, SocketFlags socketFlags, bool fromNetworkStream, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(ValueTask.FromCanceled <int>(cancellationToken));
}
AwaitableSocketAsyncEventArgs saea =
Interlocked.Exchange(ref _singleBufferReceiveEventArgs, null) ??
new AwaitableSocketAsyncEventArgs(this, isReceiveForCaching: true);
Debug.Assert(saea.BufferList == null);
saea.SetBuffer(buffer);
saea.SocketFlags = socketFlags;
saea.WrapExceptionsForNetworkStream = fromNetworkStream;
return(saea.ReceiveAsync(this, cancellationToken));
}
private static async Task CopyToAsyncCore(Stream destination, AwaitableSocketAsyncEventArgs ea, CancellationToken cancellationToken)
{
try
{
while (true)
{
cancellationToken.ThrowIfCancellationRequested();
int bytesRead = await ea.ReceiveAsync();
if (bytesRead == 0)
{
break;
}
await destination.WriteAsync(ea.Buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
}
}
finally
{
ArrayPool<byte>.Shared.Return(ea.Buffer, clearArray: true);
ea.Dispose();
}
}
