public void ReceiveData(byte[] data)
{
if (data == null)
{
logger.Error("received null data");
return;
}
// get length data
if (this.bufferPos == -1)
{
if (data.Length != 4)
{
logger.ErrorFormat("error length data. [{0}]", data.Length);
return;
}
// length data
this.expectLen = BitConverter.ToInt32(data, 0);
this.recvBuffer = new byte[this.expectLen];
this.bufferPos = 0;
return;
}
// fill buffer
Array.Copy(data, 0, this.recvBuffer, this.bufferPos, data.Length);
this.bufferPos += data.Length;
if (this.bufferPos < this.expectLen)
{
return; // not full
}
this.bufferPos = -1;
lock (this.recvLocker)
{
// complete the read async result
if (this.readDataAsyncResultQueue.Count > 0)
{
ReadDataAsyncResultServer result = this.readDataAsyncResultQueue.Dequeue();
if (data != null)
{
result.Complete(false, this.recvBuffer);
}
else
{
result.Complete(new TimeoutException());
}
return;
}
// there is no read data async result, cache the received data
this.receivedDataQueue.Enqueue(this.recvBuffer);
}
}
public IAsyncResult BeginReceive(TimeSpan timeout, AsyncCallback callback, object state)
{
ReadDataAsyncResultServer result = new ReadDataAsyncResultServer(this, callback, state);
lock (this.recvLocker)
{
// if there is already data received, complete the read async result immediately
if (this.receivedDataQueue.Count > 0)
{
result.Complete(true, this.receivedDataQueue.Dequeue());
return(result);
}
// there is no data received, wait for data arrive
this.readDataAsyncResultQueue.Enqueue(result);
}
return(result);
}