3e1b1dd4a9
The copyright and license notice is already in the LICENSE file. There is no justifiable reason to also require that it be included in every file, since the individual files are not individually distributed except as part of the entire package.
95 lines
2.4 KiB
JavaScript
95 lines
2.4 KiB
JavaScript
var common = require('../common');
|
|
var assert = require('assert');
|
|
|
|
var dgram = require('dgram'),
|
|
util = require('util'),
|
|
assert = require('assert'),
|
|
Buffer = require('buffer').Buffer;
|
|
var LOCAL_BROADCAST_HOST = '224.0.0.1';
|
|
var sendMessages = [
|
|
new Buffer('First message to send'),
|
|
new Buffer('Second message to send'),
|
|
new Buffer('Third message to send'),
|
|
new Buffer('Fourth message to send')
|
|
];
|
|
|
|
var listenSockets = [];
|
|
|
|
var sendSocket = dgram.createSocket('udp4');
|
|
|
|
sendSocket.on('close', function() {
|
|
console.error('sendSocket closed');
|
|
});
|
|
|
|
sendSocket.setBroadcast(true);
|
|
sendSocket.setMulticastTTL(1);
|
|
sendSocket.setMulticastLoopback(true);
|
|
|
|
var i = 0;
|
|
|
|
sendSocket.sendNext = function() {
|
|
var buf = sendMessages[i++];
|
|
|
|
if (!buf) {
|
|
try { sendSocket.close(); } catch (e) {}
|
|
return;
|
|
}
|
|
|
|
sendSocket.send(buf, 0, buf.length,
|
|
common.PORT, LOCAL_BROADCAST_HOST, function(err) {
|
|
if (err) throw err;
|
|
console.error('sent %s to %s', util.inspect(buf.toString()),
|
|
LOCAL_BROADCAST_HOST + common.PORT);
|
|
process.nextTick(sendSocket.sendNext);
|
|
});
|
|
};
|
|
|
|
var listener_count = 0;
|
|
|
|
function mkListener() {
|
|
var receivedMessages = [];
|
|
var listenSocket = dgram.createSocket('udp4');
|
|
listenSocket.addMembership(LOCAL_BROADCAST_HOST);
|
|
|
|
listenSocket.on('message', function(buf, rinfo) {
|
|
console.error('received %s from %j', util.inspect(buf.toString()), rinfo);
|
|
receivedMessages.push(buf);
|
|
|
|
if (receivedMessages.length == sendMessages.length) {
|
|
listenSocket.dropMembership(LOCAL_BROADCAST_HOST);
|
|
process.nextTick(function() { // TODO should be changed to below.
|
|
// listenSocket.dropMembership(LOCAL_BROADCAST_HOST, function() {
|
|
listenSocket.close();
|
|
});
|
|
}
|
|
});
|
|
|
|
listenSocket.on('close', function() {
|
|
console.error('listenSocket closed -- checking received messages');
|
|
var count = 0;
|
|
receivedMessages.forEach(function(buf) {
|
|
for (var i = 0; i < sendMessages.length; ++i) {
|
|
if (buf.toString() === sendMessages[i].toString()) {
|
|
count++;
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
console.error('count %d', count);
|
|
//assert.strictEqual(count, sendMessages.length);
|
|
});
|
|
|
|
listenSocket.on('listening', function() {
|
|
listenSockets.push(listenSocket);
|
|
if (listenSockets.length == 3) {
|
|
sendSocket.sendNext();
|
|
}
|
|
});
|
|
|
|
listenSocket.bind(common.PORT);
|
|
}
|
|
|
|
mkListener();
|
|
mkListener();
|
|
mkListener();
|
|
|