/// <inheritdoc/>
protected override void BeginSend(IWriteRequest request, IoBuffer buf)
{
SocketAsyncEventArgs saea;
SocketAsyncEventArgsBuffer saeaBuf = buf as SocketAsyncEventArgsBuffer;
if (saeaBuf == null)
{
_writeBuffer.Clear();
if (_writeBuffer.Remaining < buf.Remaining)
{
Int32 oldLimit = buf.Limit;
buf.Limit = buf.Position + _writeBuffer.Remaining;
_writeBuffer.Put(buf);
buf.Limit = oldLimit;
}
else
{
_writeBuffer.Put(buf);
}
_writeBuffer.Flip();
_writeBuffer.SetBuffer();
saea = _writeBuffer.SocketAsyncEventArgs;
}
else
{
saea = saeaBuf.SocketAsyncEventArgs;
saea.Completed += _completeHandler;
}
Boolean willRaiseEvent;
try
{
willRaiseEvent = Socket.SendAsync(saea);
}
catch (ObjectDisposedException)
{
// do nothing
return;
}
catch (SocketException ex)
{
EndSend(ex);
return;
}
catch (Exception ex)
{
EndSend(ex);
return;
}
if (!willRaiseEvent)
{
ProcessSend(saea);
}
}
private void BeginSend(AsyncDatagramSession session, IoBuffer buf, EndPoint remoteEP)
{
_writeBuffer.Clear();
SocketAsyncEventArgs saea;
SocketAsyncEventArgsBuffer saeaBuf = buf as SocketAsyncEventArgsBuffer;
if (saeaBuf == null)
{
if (_writeBuffer.Remaining < buf.Remaining)
{
// TODO allocate a temp buffer
}
else
{
_writeBuffer.Put(buf);
}
_writeBuffer.Flip();
saea = _writeBuffer.SocketAsyncEventArgs;
saea.SetBuffer(saea.Offset + _writeBuffer.Position, _writeBuffer.Limit);
}
else
{
saea = saeaBuf.SocketAsyncEventArgs;
saea.Completed += _completeHandler;
}
saea.UserToken = session;
saea.RemoteEndPoint = remoteEP;
Boolean willRaiseEvent;
try
{
willRaiseEvent = Socket.SendToAsync(saea);
}
catch (ObjectDisposedException)
{
// do nothing
return;
}
catch (Exception ex)
{
EndSend(session, ex);
return;
}
if (!willRaiseEvent)
{
ProcessSend(saea);
}
}
