package ;
import haxe.io.Bytes;
import haxe.Stack;
import neko.Lib;
import neko.io.File;
import neko.io.FileInput;
import neko.Sys;
import org.zeromq.ZMQ;
import org.zeromq.ZMQContext;
import org.zeromq.ZMQException;
import org.zeromq.ZMQSocket;
/**
* Task ventilator in Haxe
* Binds PUSH socket to tcp://localhost:5557
* Sends batch of tasks to workers via that socket.
*
* Based on code from: http://zguide.zeromq.org/java:taskvent
*
* Use with TaskWork.hx and TaskSink.hx
*/
class TaskVent
{
public static function main() {
try {
var context:ZMQContext = ZMQContext.instance();
var sender:ZMQSocket = context.socket(ZMQ_PUSH);
Lib.println("** TaskVent (see: http://zguide.zeromq.org/page:all#Divide-and-Conquer)");
sender.bind("tcp://127.0.0.1:5557");
Lib.println("Press Enter when the workers are ready: ");
var f:FileInput = File.stdin();
var str:String = f.readLine();
Lib.println("Sending tasks to workers …\n");
// The first message is "0" and signals starts of batch
sender.sendMsg(Bytes.ofString("0"));
// Send 100 tasks
var totalMsec:Int = 0; // Total expected cost in msec
for (task_nbr in 0 … 100) {
var workload = Std.random(100) + 1; // Generates 1 to 100 msecs
totalMsec += workload;
Lib.print(workload + ".");
sender.sendMsg(Bytes.ofString(Std.string(workload)));
}
Lib.println("Total expected cost: " + totalMsec + " msec");
// Give 0MQ time to deliver
Sys.sleep(1);
sender.close();
context.term();
} catch (e:ZMQException) {
trace("ZMQException #:" + ZMQ.errNoToErrorType(e.errNo) + ", str:" + e.str());
trace (Stack.toString(Stack.exceptionStack()));
}
}
}