1 // Copyright Joyent, Inc. and other Node contributors.
3 // Permission is hereby granted, free of charge, to any person obtaining a
4 // copy of this software and associated documentation files (the
5 // "Software"), to deal in the Software without restriction, including
6 // without limitation the rights to use, copy, modify, merge, publish,
7 // distribute, sublicense, and/or sell copies of the Software, and to permit
8 // persons to whom the Software is furnished to do so, subject to the
9 // following conditions:
11 // The above copyright notice and this permission notice shall be included
12 // in all copies or substantial portions of the Software.
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17 // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18 // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 // USE OR OTHER DEALINGS IN THE SOFTWARE.
23 var PACKETS_PER_WORKER = 10;
25 var assert = require('assert');
26 var cluster = require('cluster');
27 var common = require('../common');
28 var dgram = require('dgram');
31 if (process.platform === 'win32') {
32 console.warn("dgram clustering is currently not supported on windows.");
46 // Start listening on a socket.
47 var socket = dgram.createSocket('udp4');
48 socket.bind(common.PORT);
50 // Disconnect workers when the expected number of messages have been
52 socket.on('message', function(data, info) {
55 if (received == PACKETS_PER_WORKER * NUM_WORKERS) {
56 console.log('master received %d packets', received);
61 // Disconnect all workers.
67 for (var i = 0; i < NUM_WORKERS; i++)
73 // Create udp socket and send packets to master.
74 var socket = dgram.createSocket('udp4');
75 var buf = new Buffer('hello world');
77 for (var i = 0; i < PACKETS_PER_WORKER; i++)
78 socket.send(buf, 0, buf.length, common.PORT, '127.0.0.1');
80 console.log('worker %d sent %d packets', cluster.worker.id, PACKETS_PER_WORKER);