/// <summary>
/// Receive <see cref="AsyncCallback"/> method.
/// </summary>
/// <exception cref="InvalidOperationException" />
protected override unsafe void ReceiveCallback(IAsyncResult ar)
{
try
{
MReceivedLength += MSocket.EndReceive(ar);
fixed(byte *buf = MReceiveBuffer)
{
if (!MHeaderReceived) //get packet capacity
{
L2Buffer.Extend(ref MReceiveBuffer, 0, *(int *)buf - sizeof(int));
MReceivedLength = 0;
MHeaderReceived = true;
}
if (MReceivedLength == MReceiveBuffer.Length) // all data received
{
Handle(new Packet(2, MReceiveBuffer));
MReceivedLength = 0;
MReceiveBuffer = MDefaultBuffer;
MHeaderReceived = false;
MSocket.BeginReceive(MReceiveBuffer, 0, 4, 0, ReceiveCallback, null);
}
else
{
if (MReceivedLength < MReceiveBuffer.Length) // not all data received
{
MSocket.BeginReceive(MReceiveBuffer, MReceivedLength, MReceiveBuffer.Length - MReceivedLength, 0, MReceiveCallback, null);
}
else
{
throw new InvalidOperationException();
}
}
}
}
catch (SocketException se)
{
Log.Info(string.Format("{0} \r\nError code: {1}", se.ToString(), se.ErrorCode));
CloseConnection();
OnDisconnected?.Invoke(se.ErrorCode, this, ConnectionId);
}
catch (Exception e)
{
Log.Error(e);
CloseConnection();
OnDisconnected?.Invoke(-1, this, ConnectionId);
}
}
/// <summary>
/// Begins receive from connection socket.
/// </summary>
public override void BeginReceive()
{
MSocket.BeginReceive(MReceiveBuffer, 0, 4, 0, MReceiveCallback, null);
}