blob: fc309b0fbb51671054b1c0e43263d3c58c9b9f45 (
plain)
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
|
'use strict';
const callbacks = new Set();
let isCalled = false;
let isRegistered = false;
function exit(exit, signal) {
if (isCalled) {
return;
}
isCalled = true;
for (const callback of callbacks) {
callback();
}
if (exit === true) {
process.exit(128 + signal); // eslint-disable-line unicorn/no-process-exit
}
}
module.exports = callback => {
callbacks.add(callback);
if (!isRegistered) {
isRegistered = true;
process.once('exit', exit);
process.once('SIGINT', exit.bind(null, true, 2));
process.once('SIGTERM', exit.bind(null, true, 15));
// PM2 Cluster shutdown message. Caught to support async handlers with pm2, needed because
// explicitly calling process.exit() doesn't trigger the beforeExit event, and the exit
// event cannot support async handlers, since the event loop is never called after it.
process.on('message', message => {
if (message === 'shutdown') {
exit(true, -128);
}
});
}
return () => {
callbacks.delete(callback);
};
};
|
