mirror of
https://github.com/nodejs/node.git
synced 2024-11-25 08:19:38 +01:00
65b1e4f56f
Server sockets should be shared by default, and client sockets should be exclusive by default. For net/TCP, this is how it is, for dgram/UDP, its a little less clear what a client socket is, but a socket that is auto-bound during a dgram.send() is not usefully shared among cluster workers, any more than an outgoing TCP connection would be usefully shared. Since implicit binds become exclusive, implicit/client dgram sockets can now be used with cluster on Windows. Before, neither explicit nor implicitly bound sockets could be used, causing dgram to be completely unsupported with cluster on Windows. After this change, they become half supported. PR: https://github.com/iojs/io.js/pull/325 PR: https://github.com/joyent/node/pull/8643 Reviewed-by: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-by: Bert Belder <bertbelder@gmail.com>
66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
var NUM_WORKERS = 4;
|
|
var PACKETS_PER_WORKER = 10;
|
|
|
|
var assert = require('assert');
|
|
var cluster = require('cluster');
|
|
var common = require('../common');
|
|
var dgram = require('dgram');
|
|
|
|
|
|
if (process.platform === 'win32') {
|
|
console.warn("dgram clustering is currently not supported on windows.");
|
|
process.exit(0);
|
|
}
|
|
|
|
if (cluster.isMaster)
|
|
master();
|
|
else
|
|
worker();
|
|
|
|
|
|
function master() {
|
|
var i;
|
|
var received = 0;
|
|
|
|
// Start listening on a socket.
|
|
var socket = dgram.createSocket('udp4');
|
|
socket.bind(common.PORT);
|
|
|
|
// Disconnect workers when the expected number of messages have been
|
|
// received.
|
|
socket.on('message', function(data, info) {
|
|
received++;
|
|
|
|
if (received == PACKETS_PER_WORKER * NUM_WORKERS) {
|
|
console.log('master received %d packets', received);
|
|
|
|
// Close the socket.
|
|
socket.close();
|
|
|
|
// Disconnect all workers.
|
|
cluster.disconnect();
|
|
}
|
|
});
|
|
|
|
// Fork workers.
|
|
for (var i = 0; i < NUM_WORKERS; i++)
|
|
cluster.fork();
|
|
}
|
|
|
|
|
|
function worker() {
|
|
// Create udp socket and send packets to master.
|
|
var socket = dgram.createSocket('udp4');
|
|
var buf = new Buffer('hello world');
|
|
|
|
// This test is intended to exercise the cluster binding of udp sockets, but
|
|
// since sockets aren't clustered when implicitly bound by at first call of
|
|
// send(), explicitly bind them to an ephemeral port.
|
|
socket.bind(0);
|
|
|
|
for (var i = 0; i < PACKETS_PER_WORKER; i++)
|
|
socket.send(buf, 0, buf.length, common.PORT, '127.0.0.1');
|
|
|
|
console.log('worker %d sent %d packets', cluster.worker.id, PACKETS_PER_WORKER);
|
|
}
|