public static void Main(string[] args)
{
if (args.Length < 2)
{
Console.WriteLine("Usage: peering2 <myself> <peer_1> … <peer_N>");
return;
}
var myself = args[0];
Console.WriteLine("Hello, I am " + myself);
using (var context = new Context(1))
{
using (Socket cloudfe = context.Socket(SocketType.ROUTER), cloudbe = context.Socket(SocketType.ROUTER),
localfe = context.Socket(SocketType.ROUTER), localbe = context.Socket(SocketType.ROUTER))
{
cloudFeAddress = "tcp://127.0.0.1:" + myself;
cloudfe.Identity = Encoding.Unicode.GetBytes(myself);
cloudfe.Bind(cloudFeAddress);
cloudbe.Identity = Encoding.Unicode.GetBytes(myself);
for (int arg = 1; arg < args.Length; arg++)
{
var endpoint = "tcp://127.0.0.1:" + args[arg];
peers.Add(endpoint);
Console.WriteLine("I: connecting to cloud frontend at " + endpoint);
cloudbe.Connect(endpoint);
}
localFeAddress = cloudFeAddress + "1";
localfe.Bind(localFeAddress);
localBeAddress = cloudFeAddress + "2";
localbe.Bind(localBeAddress);
Console.WriteLine("Press Enter when all brokers are started: ");
Console.ReadKey();
var workers = new List<Thread>();
for (int workerNumber = 0; workerNumber < numberOfWorkers; workerNumber++)
{
workers.Add(new Thread(WorkerTask));
workers[workerNumber].Start();
}
var clients = new List<Thread>();
for (int clientNumber = 0; clientNumber < numberOfClients; clientNumber++)
{
clients.Add(new Thread(ClientTask));
clients[clientNumber].Start();
}
var workerQueue = new Queue<byte[]>();
var localfeReady = false;
var cloudfeReady = false;
var backends = new PollItem[2];
backends[0] = localbe.CreatePollItem(IOMultiPlex.POLLIN);
backends[0].PollInHandler += (socket, revents) =>
{
var zmsg = new ZMessage(socket);
// Use worker address for LRU routing
workerQueue.Enqueue(zmsg.Unwrap());
if (zmsg.BodyToString() != "READY")
{
SendReply(zmsg, cloudfe, localfe);
}
};
backends[1] = cloudbe.CreatePollItem(IOMultiPlex.POLLIN);
backends[1].PollInHandler += (socket, revents) =>
{
var zmsg = new ZMessage(socket);
// We don't use peer broker address for anything
zmsg.Unwrap();
SendReply(zmsg, cloudfe, localfe);
};
var frontends = new PollItem[2];
frontends[0] = cloudfe.CreatePollItem(IOMultiPlex.POLLIN);
frontends[0].PollInHandler += (socket, revents) =>
{
cloudfeReady = true;
};
frontends[1] = localfe.CreatePollItem(IOMultiPlex.POLLIN);
frontends[1].PollInHandler += (socket, revents) =>
{
localfeReady = true;
};
while (true)
{
var timeout = (workerQueue.Count > 0 ? 1000000 : -1);
var rc = Context.Poller(backends, timeout);
if (rc == -1)
break; // Interrupted
while (workerQueue.Count > 0)
{
Context.Poller(frontends, 0);
bool reRoutable;
ZMessage msg;
if (cloudfeReady)
{
cloudfeReady = false;
msg = new ZMessage(cloudfe);
reRoutable = false;
}
else if (localfeReady)
{
localfeReady = false;
msg = new ZMessage(localfe);
reRoutable = true;
}
else
{
break;
}
//if (reRoutable && workerQueue.Count > 0 && randomizer.Next(3) == 0)
if (reRoutable && peers.Count > 0 && randomizer.Next(4) == 0)
{
var randomPeer = randomizer.Next(1, args.Length - 1);
var endpoint = "tcp://127.0.0.1:" + args[randomPeer];
msg.Wrap(Encoding.Unicode.GetBytes(endpoint), new byte[0]);
msg.Send(cloudbe);
}
else
{
msg.Wrap(workerQueue.Dequeue(), new byte[0]);
msg.Send(localbe);
}
}
}
}
}
}
private static void WorkerTask()
{
using (var ctx = new Context(1))
{
using (var worker = ctx.Socket(SocketType.REQ))
{
ZHelpers.SetID(worker, Encoding.Unicode);
worker.Connect(localBeAddress);
var msg = new ZMessage("READY");
msg.Send(worker);
while (true)
{
var recvMsg = new ZMessage(worker);
Console.WriteLine("Worker: {0}", recvMsg.BodyToString());
Thread.Sleep(1000);
recvMsg.StringToBody("OK");
recvMsg.Send(worker);
//var okmsg = new ZMessage("OK");
//okmsg.Send(worker);
}
}
}
}
