public static void Init ( int poolSize, string ip, int port, int threshold ) {
_ip = ip;
_port = port;
initialPoolSize = poolSize;
_threshold = threshold;
for (int i=0; i<poolSize; i++) {
QueueClient qc = new QueueClient(ip, port);
qc.ConnectionClosed += queue_ConnectionClosed;
qc.Connect();
clients.Enqueue(qc);
}
run = true;
runner = new Thread(new ThreadStart(Process));
runner.Start();
}
public static void Process () {
while (run) {
// if we don't have any messages le'ts just pause and try again
if (messages.Count == 0) {
Thread.Sleep(1000);
continue;
}
for (int i=0; i<clients.Count; i++) {
MessageEvent me = null;
if (messages.Count > 0) {
me = (MessageEvent)messages.Dequeue();
if ((me != null) && (me.Message != null)) {
QueueClient qc = null;
qc = (QueueClient)clients.Dequeue();
me.Client = qc;
me.MessageReceived += new MessageEventHandler(queue_MessageReceived);
QueueClient.AsyncSend(me);
QueueClient.AsyncRecv(me);
}
}
}
if (!run) {
break;
}
if ((messages.Count > initialPoolSize) && (clients.Count < _threshold)) {
// we may need to increase the queue clients pool
QueueClient qc = new QueueClient(_ip, _port);
qc.ConnectionClosed += queue_ConnectionClosed;
try {
qc.Connect();
clients.Enqueue(qc);
} catch (SocketException se) {
// we should find a way to warn that we can't create more connections
// but this could be one of only so let's try give it a chance to recover
Thread.Sleep(5000);
}
} else if ((messages.Count == 0) && (clients.Count > initialPoolSize)) {
// or reduce it
QueueClient qc = (QueueClient)clients.Dequeue();
qc.Disconnect();
}
}
}