public IAsyncResult BeginReadMessage(AsyncCallback asyncCallback, object stateObject)
{
WorkerAsyncResult workerResult;
if (_eof)
{
workerResult = new WorkerAsyncResult(this, stateObject, asyncCallback, null, 0, 0);
workerResult.InvokeCallback(-1);
return(workerResult);
}
workerResult = new WorkerAsyncResult(this, stateObject, asyncCallback,
_readHeaderBuffer, 0,
_readHeaderBuffer.Length);
IAsyncResult result = _transportAPM.BeginRead(_readHeaderBuffer, 0, _readHeaderBuffer.Length,
_readFrameCallback, workerResult);
if (result.CompletedSynchronously)
{
ReadFrameComplete(result);
}
return(workerResult);
}
//
// Loops while subsequent completions are sync.
//
private void StartReading()
{
while (true)
{
IAsyncResult ar = _transportAPM.BeginRead(_request.Buffer, _request.Offset + _totalRead, _request.Count - _totalRead, s_readCallback, this);
if (!ar.CompletedSynchronously)
{
#if DEBUG
_request._DebugAsyncChain = ar;
#endif
break;
}
int bytes = _transportAPM.EndRead(ar);
if (CheckCompletionBeforeNextRead(bytes))
{
break;
}
}
}
