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Removed during the early stages of node 0.5 refactoring to libuv.
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// Copyright Joyent, Inc. and other Node contributors. | ||
// | ||
// Permission is hereby granted, free of charge, to any person obtaining a | ||
// copy of this software and associated documentation files (the | ||
// "Software"), to deal in the Software without restriction, including | ||
// without limitation the rights to use, copy, modify, merge, publish, | ||
// distribute, sublicense, and/or sell copies of the Software, and to permit | ||
// persons to whom the Software is furnished to do so, subject to the | ||
// following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included | ||
// in all copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN | ||
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | ||
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | ||
// USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
|
||
var common = require('../common'), | ||
assert = require('assert'), | ||
cluster = require('cluster'), | ||
dgram = require('dgram'), | ||
util = require('util'), | ||
assert = require('assert'), | ||
Buffer = require('buffer').Buffer, | ||
LOCAL_BROADCAST_HOST = '255.255.255.255', | ||
messages = [ | ||
new Buffer('First message to send'), | ||
new Buffer('Second message to send'), | ||
new Buffer('Third message to send'), | ||
new Buffer('Fourth message to send') | ||
]; | ||
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if (cluster.isMaster) { | ||
var workers = {}, | ||
listeners = 3, | ||
listening = 0, | ||
i = 0, | ||
done = 0; | ||
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//launch child processes | ||
for (var x = 0; x < listeners; x++) { | ||
(function () { | ||
var worker = cluster.fork(); | ||
workers[worker.pid] = worker; | ||
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worker.messagesReceived = []; | ||
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worker.on('message', function (msg) { | ||
if (msg.listening) { | ||
listening += 1; | ||
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if (listening === listeners) { | ||
//all child process are listening, so start sending | ||
sendSocket.sendNext(); | ||
} | ||
} | ||
else if (msg.message) { | ||
worker.messagesReceived.push(msg.message); | ||
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if (worker.messagesReceived.length === messages.length) { | ||
done += 1; | ||
console.error('%d received %d messages total.', worker.pid, | ||
worker.messagesReceived.length); | ||
} | ||
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if (done === listeners) { | ||
console.error('All workers have received the required number of ' | ||
+ 'messages. Will now compare.'); | ||
|
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Object.keys(workers).forEach(function (pid) { | ||
var worker = workers[pid]; | ||
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var count = 0; | ||
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worker.messagesReceived.forEach(function(buf) { | ||
for (var i = 0; i < messages.length; ++i) { | ||
if (buf.toString() === messages[i].toString()) { | ||
count++; | ||
break; | ||
} | ||
} | ||
}); | ||
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console.error('%d received %d matching messges.', worker.pid | ||
, count); | ||
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assert.equal(count, messages.length | ||
,'A worker received an invalid multicast message'); | ||
}); | ||
} | ||
} | ||
}); | ||
})(x); | ||
} | ||
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var sendSocket = dgram.createSocket('udp4'); | ||
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sendSocket.bind(common.PORT); | ||
sendSocket.setBroadcast(true); | ||
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sendSocket.on('close', function() { | ||
console.error('sendSocket closed'); | ||
}); | ||
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sendSocket.sendNext = function() { | ||
var buf = messages[i++]; | ||
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if (!buf) { | ||
try { sendSocket.close(); } catch (e) {} | ||
return; | ||
} | ||
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sendSocket.send(buf, 0, buf.length, | ||
common.PORT, LOCAL_BROADCAST_HOST, function(err) { | ||
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if (err) throw err; | ||
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console.error('sent %s to %s:%s', util.inspect(buf.toString()) | ||
, LOCAL_BROADCAST_HOST, common.PORT); | ||
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process.nextTick(sendSocket.sendNext); | ||
}); | ||
}; | ||
} | ||
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if (!cluster.isMaster) { | ||
var receivedMessages = []; | ||
var listenSocket = dgram.createSocket('udp4'); | ||
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listenSocket.on('message', function(buf, rinfo) { | ||
console.error('%s received %s from %j', process.pid | ||
, util.inspect(buf.toString()), rinfo); | ||
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receivedMessages.push(buf); | ||
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process.send({ message : buf.toString() }); | ||
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if (receivedMessages.length == messages.length) { | ||
listenSocket.dropMembership(LOCAL_BROADCAST_HOST); | ||
process.nextTick(function() { // TODO should be changed to below. | ||
// listenSocket.dropMembership(LOCAL_BROADCAST_HOST, function() { | ||
listenSocket.close(); | ||
}); | ||
} | ||
}); | ||
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listenSocket.on('close', function() { | ||
process.exit(); | ||
}); | ||
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listenSocket.on('listening', function() { | ||
process.send({ listening : true }); | ||
}); | ||
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listenSocket.bind(common.PORT); | ||
} |