protected SocketChannelAsyncOperation PrepareWriteOperation(ArraySegment <byte> buffer)
{
SocketChannelAsyncOperation operation = this.WriteOperation;
operation.SetBuffer(buffer.Array, buffer.Offset, buffer.Count);
return(operation);
}
protected void ResetWriteOperation()
{
SocketChannelAsyncOperation operation = this.writeOperation;
Contract.Requires(operation != null);
operation.SetBuffer(null, 0, 0);
}
protected override void ScheduleSocketRead()
{
try
{
SocketChannelAsyncOperation operation = this.ReadOperation;
operation.RemoteEndPoint = this.anyRemoteEndPoint;
IRecvByteBufAllocatorHandle handle = this.Unsafe.RecvBufAllocHandle;
IByteBuffer buffer = handle.Allocate(this.config.Allocator);
handle.AttemptedBytesRead = buffer.WritableBytes;
operation.UserToken = buffer;
ArraySegment <byte> bytes = buffer.GetIoBuffer(0, buffer.WritableBytes);
operation.SetBuffer(bytes.Array, bytes.Offset, bytes.Count);
bool pending;
#if NETSTANDARD1_3
pending = this.Socket.ReceiveFromAsync(operation);
#else
if (this.isConnected)
{
if (ExecutionContext.IsFlowSuppressed())
{
pending = this.Socket.ReceiveAsync(operation);
}
else
{
using (ExecutionContext.SuppressFlow())
{
pending = this.Socket.ReceiveAsync(operation);
}
}
}
else
{
if (ExecutionContext.IsFlowSuppressed())
{
pending = this.Socket.ReceiveFromAsync(operation);
}
else
{
using (ExecutionContext.SuppressFlow())
{
pending = this.Socket.ReceiveFromAsync(operation);
}
}
}
#endif
if (!pending)
{
this.EventLoop.Execute(ReceiveFromCompletedSyncCallback, this.Unsafe, operation);
}
}
catch (Exception e)
{
this.Pipeline.FireExceptionCaught(e);
}
}
protected SocketChannelAsyncOperation PrepareWriteOperation(IByteBuffer buffer)
{
SocketChannelAsyncOperation operation = this.writeOperation ?? (this.writeOperation = new SocketChannelAsyncOperation(this, false));
if (!buffer.HasArray)
{
throw new NotImplementedException("IByteBuffer implementations not backed by array are currently not supported.");
}
operation.SetBuffer(buffer.Array, buffer.ArrayOffset + buffer.WriterIndex, buffer.WritableBytes);
return(operation);
}
protected void ResetWriteOperation()
{
SocketChannelAsyncOperation operation = this.writeOperation;
Contract.Assert(operation != null);
if (operation.BufferList == null)
{
operation.SetBuffer(null, 0, 0);
}
else
{
operation.BufferList = null;
}
}