// .split main task
// Finally, here is the main task. We create a new broker instance and
// then process messages on the broker Socket:
public static void MDBroker(string[] args)
{
CancellationTokenSource cancellor = new CancellationTokenSource();
Console.CancelKeyPress += (s, ea) =>
{
ea.Cancel = true;
cancellor.Cancel();
};
args = args?.Select(e => e.ToLowerInvariant()).ToArray() ?? new string[] {};
var argsVerbose = args.Where(e => e.Equals("-v") || e.Equals("--verbose")).ToList();
bool verbose = argsVerbose.Any();
Console.WriteLine("Verbose: {0}", verbose);
var argsExVerbose = args.Except(argsVerbose).ToList();
if (argsExVerbose.Count < 1)
{
Console.WriteLine();
Console.WriteLine("Usage: ./{0} MDBroker [Endpoint] [-v|--verbose]", AppDomain.CurrentDomain.FriendlyName);
Console.WriteLine();
Console.WriteLine(" Endpoint Where MDBroker should bind on");
Console.WriteLine(" Default is tcp://*:5555");
Console.WriteLine(" -v Verbose mode");
Console.WriteLine(" Default verbose mode is not active");
Console.WriteLine();
if (argsExVerbose.Count < 1)
argsExVerbose.Add("tcp://*:5555");
}
var brokerBinding = argsExVerbose[0];
using (Broker broker = new Broker(verbose))
{
broker.Bind(brokerBinding);
// Get and process messages forever or until interrupted
while (true)
{
if (cancellor.IsCancellationRequested
|| (Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape))
broker.ShutdownContext();
var p = ZPollItem.CreateReceiver();
ZMessage msg;
ZError error;
if (broker.Socket.PollIn(p, out msg, out error, MdpCommon.HEARTBEAT_INTERVAL))
{
if (verbose)
msg.DumpZmsg("I: received message:");
using (ZFrame sender = msg.Pop())
using (ZFrame empty = msg.Pop())
using (ZFrame header = msg.Pop())
{
if (header.ToString().Equals(MdpCommon.MDPC_CLIENT))
broker.ClientMsg(sender, msg);
else if (header.ToString().Equals(MdpCommon.MDPW_WORKER))
broker.WorkerMsg(sender, msg);
else
{
msg.DumpZmsg("E: invalid message:");
msg.Dispose();
}
}
}
else
{
if (Equals(error, ZError.ETERM))
{
"W: interrupt received, shutting down...".DumpString();
break; // Interrupted
}
if (!Equals(error, ZError.EAGAIN))
throw new ZException(error);
}
// Disconnect and delete any expired workers
// Send heartbeats to idle workes if needed
if (DateTime.UtcNow > broker.HeartbeatAt)
{
broker.Purge();
foreach (var waitingworker in broker.Waiting)
{
waitingworker.Send(MdpCommon.MdpwCmd.HEARTBEAT.ToHexString(), null, null);
}
broker.HeartbeatAt = DateTime.UtcNow + MdpCommon.HEARTBEAT_INTERVAL;
}
}
}
}
// .split main task
// Finally, here is the main task. We create a new broker instance and
// then process messages on the broker Socket:
public static void MDBroker(string[] args)
{
bool verbose = (args.Any(e => e.ToLower().Equals("-v")
|| e.ToLower().Equals("--verbose")));
Console.WriteLine("Verbose: {0}", verbose);
CancellationTokenSource cancellor = new CancellationTokenSource();
Console.CancelKeyPress += (s, ea) =>
{
ea.Cancel = true;
cancellor.Cancel();
};
using (Broker broker = new Broker(verbose))
{
broker.Bind("tcp://*:5555");
// Get and process messages forever or until interrupted
while (true)
{
if (cancellor.IsCancellationRequested
|| (Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape))
broker.ShutdownContext();
var p = ZPollItem.CreateReceiver();
ZMessage msg;
ZError error;
if (broker.Socket.PollIn(p, out msg, out error, MdpCommon.HEARTBEAT_INTERVAL))
{
if (verbose)
msg.DumpZmsg("I: received message:");
using (ZFrame sender = msg.Pop())
using (ZFrame empty = msg.Pop())
using (ZFrame header = msg.Pop())
{
if (header.ToString().Equals(MdpCommon.MDPC_CLIENT))
broker.ClientMsg(sender, msg);
else if (header.ToString().Equals(MdpCommon.MDPW_WORKER))
broker.WorkerMsg(sender, msg);
else
{
msg.DumpZmsg("E: invalid message:");
msg.Dispose();
}
}
}
else
{
if (Equals(error, ZError.ETERM))
{
"W: interrupt received, shutting down...".DumpString();
break; // Interrupted
}
if (!Equals(error, ZError.EAGAIN))
throw new ZException(error);
}
// Disconnect and delete any expired workers
// Send heartbeats to idle workes if needed
if (DateTime.UtcNow > broker.HeartbeatAt)
{
broker.Purge();
foreach (var waitingworker in broker.Waiting)
{
waitingworker.Send(MdpCommon.MdpwCmd.HEARTBEAT.ToHexString(), null, null);
}
broker.HeartbeatAt = DateTime.UtcNow + MdpCommon.HEARTBEAT_INTERVAL;
}
}
}
}
