maqu14
67 lines
1.6 KiB
JavaScript
67 lines
1.6 KiB
JavaScript
/*
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*
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* Forwarder device
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*
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*/
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var zmq = require('../../')
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, frontPort = 'tcp://127.0.0.1:12345'
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, backPort = 'tcp://127.0.0.1:12346';
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function createClient (port) {
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var socket = zmq.socket('push');
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socket.identity = 'client' + process.pid;
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socket.connect(port);
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console.log('client connected!');
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setInterval(function() {
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var value = Math.floor(Math.random()*100);
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console.log(socket.identity + ': pushing ' + value);
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socket.send(value);
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}, 100);
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};
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function createWorker (port) {
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var socket = zmq.socket('pull');
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socket.identity = 'worker' + process.pid;
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socket.on('message', function(data) {
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console.log(socket.identity + ': pulled ' + data.toString());
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});
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socket.connect(port, function(err) {
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if (err) throw err;
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console.log('worker connected!');
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});
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};
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function createStreamerDevice(frontPort, backPort) {
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var frontSocket = zmq.socket('pull'),
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backSocket = zmq.socket('push');
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frontSocket.identity = 'sub' + process.pid;
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backSocket.identity = 'pub' + process.pid;
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frontSocket.bind(frontPort, function (err) {
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console.log('bound', frontPort);
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});
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frontSocket.on('message', function() {
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//pass to back
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console.log('forwarder: sending downstream', arguments[0].toString());
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backSocket.send(Array.prototype.slice.call(arguments));
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});
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backSocket.bind(backPort, function (err) {
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console.log('bound', backPort);
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});
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}
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createStreamerDevice(frontPort, backPort);
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createClient(frontPort);
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createWorker(backPort);
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