private void readCallback(IAsyncResult ar)
{
//The callback messages
object[] messages = (object[])ar.AsyncState;
//The channel
ConnectionChannel channel = (ConnectionChannel)messages[0];
//The packet
Packet packet = (Packet)messages[1];
try {
//If we are unable to poll the channel's socket, it must be terminated
if (channel.getSocket().Poll(1000, SelectMode.SelectRead))
{
channel.getPipeline().getHandler().connectionTerminated(channel);
connectedChannels.Remove(channel);
return;
}
//Send the packet to the channel's decoder
channel.getPipeline().getHandler().messageReceived(channel, channel.getPipeline().getDecoder().decode(channel, packet));
//Await another packet
channel.getSocket().BeginReceive(packet.getPayload(), 0, packet.getPayload().Length, 0, new AsyncCallback(readCallback), new object[] { channel, packet });
} catch (Exception e) {
//Send the exception to the channel's handler
channel.getPipeline().getHandler().exceptionCaught(channel, e);
}
}
private void connectCallback(IAsyncResult ar)
{
//The listener socket
Socket listener = (Socket)ar.AsyncState;
//The connected socket
Socket socket = listener.EndAccept(ar);
//Set the socket options
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, 1);
//The channel instance
ConnectionChannel channel = new ConnectionChannel(socket, pipelineFactory.getPipeline());
//Add the channel
connectedChannels.Add(channel);
//An empty packet instance
Packet packet = new Packet();
//Begin receiving to the packet payload
channel.getSocket().BeginReceive(packet.getPayload(), 0, packet.getPayload().Length, 0, new AsyncCallback(readCallback), new object[] { channel, packet });
// Start accepting another connection
listener.BeginAccept(new AsyncCallback(connectCallback), listener);
}