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1// Copyright Joyent, Inc. and other Node contributors.
2//
3// Permission is hereby granted, free of charge, to any person obtaining a
4// copy of this software and associated documentation files (the
5// "Software"), to deal in the Software without restriction, including
6// without limitation the rights to use, copy, modify, merge, publish,
7// distribute, sublicense, and/or sell copies of the Software, and to permit
8// persons to whom the Software is furnished to do so, subject to the
9// following conditions:
10//
11// The above copyright notice and this permission notice shall be included
12// in all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20// USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22'use strict';
23const common = require('../common');
24const assert = require('assert');
25const cluster = require('cluster');
26
27if (cluster.isWorker) {
28  const http = require('http');
29  http.Server(() => {
30
31  }).listen(0, '127.0.0.1');
32
33  cluster.worker.on('disconnect', common.mustCall(() => {
34    process.exit(42);
35  }));
36
37} else if (cluster.isMaster) {
38
39  const checks = {
40    cluster: {
41      emitDisconnect: false,
42      emitExit: false,
43      callback: false
44    },
45    worker: {
46      emitDisconnect: false,
47      emitDisconnectInsideWorker: false,
48      emitExit: false,
49      state: false,
50      voluntaryMode: false,
51      died: false
52    }
53  };
54
55  // start worker
56  const worker = cluster.fork();
57
58  // Disconnect worker when it is ready
59  worker.once('listening', common.mustCall(() => {
60    const w = worker.disconnect();
61    assert.strictEqual(worker, w, `${worker.id} did not return a reference`);
62  }));
63
64  // Check cluster events
65  cluster.once('disconnect', common.mustCall(() => {
66    checks.cluster.emitDisconnect = true;
67  }));
68  cluster.once('exit', common.mustCall(() => {
69    checks.cluster.emitExit = true;
70  }));
71
72  // Check worker events and properties
73  worker.once('disconnect', common.mustCall(() => {
74    checks.worker.emitDisconnect = true;
75    checks.worker.voluntaryMode = worker.exitedAfterDisconnect;
76    checks.worker.state = worker.state;
77  }));
78
79  // Check that the worker died
80  worker.once('exit', common.mustCall((code) => {
81    checks.worker.emitExit = true;
82    checks.worker.died = !common.isAlive(worker.process.pid);
83    checks.worker.emitDisconnectInsideWorker = code === 42;
84  }));
85
86  process.once('exit', () => {
87
88    const w = checks.worker;
89    const c = checks.cluster;
90
91    // events
92    assert.ok(w.emitDisconnect, 'Disconnect event did not emit');
93    assert.ok(w.emitDisconnectInsideWorker,
94              'Disconnect event did not emit inside worker');
95    assert.ok(c.emitDisconnect, 'Disconnect event did not emit');
96    assert.ok(w.emitExit, 'Exit event did not emit');
97    assert.ok(c.emitExit, 'Exit event did not emit');
98
99    // flags
100    assert.strictEqual(w.state, 'disconnected');
101    assert.strictEqual(w.voluntaryMode, true);
102
103    // is process alive
104    assert.ok(w.died, 'The worker did not die');
105  });
106}
107