<?php
/*
* Task ventilator
* Binds PUSH socket to tcp://localhost:5557
* Sends batch of tasks to workers via that socket
* @author Ian Barber <ian(dot)barber(at)gmail(dot)com>
*/
$context = new ZMQContext();
// Socket to send messages on
$sender = new ZMQSocket($context, ZMQ::SOCKET_PUSH);
$sender->bind("tcp://*:5557");
echo "Press Enter when the workers are ready: ";
$fp = fopen('php://stdin', 'r');
$line = fgets($fp, 512);
fclose($fp);
echo "Sending tasks to workers…", PHP_EOL;
// The first message is "0" and signals start of batch
$sender->send(0);
// Send 100 tasks
$total_msec = 0; // Total expected cost in msecs
for ($task_nbr = 0; $task_nbr < 100; $task_nbr++) {
// Random workload from 1 to 100msecs
$workload = mt_rand(1, 100);
$total_msec += $workload;
$sender->send($workload);
}
printf ("Total expected cost: %d msec\n", $total_msec);
sleep (1); // Give 0MQ time to deliver