1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
'use strict';
/*
* The purpose of this test is to make sure that when forking a process,
* sending a fd representing a UDP socket to the child and sending messages
* to this endpoint, these messages are distributed to the parent and the
* child process.
*/
const common = require('../common');
const dgram = require('dgram');
const fork = require('child_process').fork;
const assert = require('assert');
if (common.isWindows) {
common.skip('Sending dgram sockets to child processes is not supported');
return;
}
if (process.argv[2] === 'child') {
let childServer;
process.once('message', function(msg, clusterServer) {
childServer = clusterServer;
childServer.once('message', function() {
process.send('gotMessage');
childServer.close();
});
process.send('handleReceived');
});
} else {
const parentServer = dgram.createSocket('udp4');
const client = dgram.createSocket('udp4');
const child = fork(__filename, ['child']);
const msg = Buffer.from('Some bytes');
let childGotMessage = false;
let parentGotMessage = false;
parentServer.once('message', function(msg, rinfo) {
parentGotMessage = true;
parentServer.close();
});
parentServer.on('listening', function() {
child.send('server', parentServer);
child.on('message', function(msg) {
if (msg === 'gotMessage') {
childGotMessage = true;
} else if (msg = 'handlReceived') {
sendMessages();
}
});
});
const sendMessages = function() {
const serverPort = parentServer.address().port;
const timer = setInterval(function() {
/*
* Both the parent and the child got at least one message,
* test passed, clean up everything.
*/
if (parentGotMessage && childGotMessage) {
clearInterval(timer);
client.close();
} else {
client.send(
msg,
0,
msg.length,
serverPort,
'127.0.0.1',
function(err) {
assert.ifError(err);
}
);
}
}, 1);
};
parentServer.bind(0, '127.0.0.1');
process.once('exit', function() {
assert(parentGotMessage);
assert(childGotMessage);
});
}
|
