private void registerTimer(int ack, TaskTimer timer)
{
if (!dictionaryTimer.ContainsKey(ack))
{
dictionaryTimer.Add(ack, timer);
}
}
private void registerPacket(TCPCopycatPacket packet, TCPCopycatReceiveMessageCallback lambda, int waitTime)
{
if (waitTime < 0)
{
throw new Exception("waitTime must be positive");
}
//Console.WriteLine("registering packet: " + packet.header.sequenceNumber);
if (dictionaryRegisteredPacket.ContainsKey(packet.header.sequenceNumber + 1))
{
dictionaryRegisteredPacket[packet.header.sequenceNumber + 1] = lambda;
}
else
{
dictionaryRegisteredPacket.Add(packet.header.sequenceNumber + 1, lambda);
}
//Console.WriteLine(dictionaryRegisteredPacket.Count.ToString() + " packets registered");
setPacketResponse(packet.header.sequenceNumber + 1, TCPCopyCatController.responseCode.NONE);
ElapsedEventHandler timerCallbackLambda = delegate(object state, System.Timers.ElapsedEventArgs e)
{
TaskTimer t = (TaskTimer)state;
TCPCopycatPacket packetToSend = t.packetToSend;
TCPCopycatReceiveMessageCallback l = t.lambda;
int w = t.waitTime;
t.Dispose();
if (dictionaryRegisteredPacketResponse[packetToSend.header.sequenceNumber + 1] == TCPCopyCatController.responseCode.OK) //unregister timer is called before the timer is even initialized
{
return;
}
Console.WriteLine("packet: " + packetToSend.header.sequenceNumber.ToString() + " lost");
unregisterPacket(packetToSend.header.sequenceNumber + 1);
setPacketResponse(packetToSend.header.sequenceNumber + 1, TCPCopyCatController.responseCode.NONE);
TCPCopyCatController.sendMessageToEndPoint(socket, serverEndpoint, packetToSend);
registerPacket(packetToSend, l, w);
};
TaskTimer timer = new TaskTimer();
timer.Interval = waitTime; // set the interval as 10000 ms
timer.Elapsed += new System.Timers.ElapsedEventHandler(timerCallbackLambda); // set the event to execute
timer.AutoReset = false; // false: only execute once
timer.Enabled = true; // to decide if execute the event of timer specified
timer.packetToSend = packet;
timer.lambda = lambda;
timer.waitTime = waitTime;
registerTimer(packet.header.sequenceNumber + 1, timer);
}
