Repository navigation
Expand file tree
/
Copy pathForkMode.js
More file actions
205 lines (175 loc) · 5.58 KB
/
Copy pathForkMode.js
File metadata and controls
205 lines (175 loc) · 5.58 KB
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/**
* Copyright 2013-present the PM2 project authors. All rights reserved.
* Use of this source code is governed by a license that
* can be found in the LICENSE file.
*/
'use strict';
/**
* @file Fork execution related functions
* @author Alexandre Strzelewicz <as@unitech.io>
* @project PM2
*/
var log = require('debug')('pm2:fork_mode');
var fs = require('fs');
var Utility = require('../Utility.js');
var path = require('path');
var cst = require('../../constants.js');
var StdioLogger = require('./StdioLogger.js');
var runtimeOf = require('../tools/interpreter.js').runtimeOf;
/**
* Description
* @method exports
* @param {} God
* @return
*/
module.exports = function ForkMode(God) {
/**
* For all apps - FORK MODE
* fork the app
* @method forkMode
* @param {} pm2_env
* @param {} cb
* @return
*/
God.forkMode = function forkMode(pm2_env, cb) {
var command = '';
var args = [];
console.log(`App [${pm2_env.name}:${pm2_env.pm_id}] starting in -fork mode-`)
var spawn = require('child_process').spawn;
var interpreter = pm2_env.exec_interpreter || process.execPath;
var pidFile = pm2_env.pm_pid_path;
if (interpreter !== 'none') {
command = interpreter;
if (pm2_env.node_args && Array.isArray(pm2_env.node_args)) {
args = args.concat(pm2_env.node_args);
}
// Deprecated - to remove at some point
if (process.env.PM2_NODE_OPTIONS) {
args = args.concat(process.env.PM2_NODE_OPTIONS.split(' '));
}
var runtime = runtimeOf(interpreter);
if (runtime === 'node') {
args.push(path.resolve(path.dirname(module.filename), '..', 'ProcessContainerFork.js'));
}
else if (runtime === 'bun') {
args.push(path.resolve(path.dirname(module.filename), '..', 'ProcessContainerForkBun.js'));
}
else
args.push(pm2_env.pm_exec_path);
}
else {
command = pm2_env.pm_exec_path;
args = [ ];
}
if (pm2_env.args) {
args = args.concat(pm2_env.args);
}
// piping stream o file
var stds = StdioLogger.stdsFromEnv(pm2_env);
log("stds: %j", stds);
Utility.startLogging(stds, function(err, result) {
if (err) {
God.logAndGenerateError(err);
return cb(err);
};
try {
var spawn_env = {};
for (var k in pm2_env) {
if (pm2_env[k] !== null && pm2_env[k] !== undefined && typeof pm2_env[k] !== 'object')
spawn_env[k] = pm2_env[k];
}
var options = {
env : spawn_env,
detached : true,
cwd : pm2_env.pm_cwd || process.cwd(),
stdio : ['pipe', 'pipe', 'pipe', 'ipc'] //Same as fork() in node core
}
if (typeof(pm2_env.windowsHide) === "boolean") {
options.windowsHide = pm2_env.windowsHide;
} else {
options.windowsHide = true;
}
if (pm2_env.uid) {
options.uid = pm2_env.uid
}
if (pm2_env.gid) {
options.gid = pm2_env.gid
}
var cspr = spawn(command, args, options);
} catch(e) {
God.logAndGenerateError(e);
return cb(e);
}
if (!cspr || !cspr.stderr || !cspr.stdout) {
var fatalError = new Error('Process could not be forked properly, check your system health')
God.logAndGenerateError(fatalError);
return cb(fatalError);
}
cspr.process = {};
cspr.process.pid = cspr.pid;
cspr.pm2_env = pm2_env;
var stdio = StdioLogger.attach(God, cspr, pm2_env, stds);
/**
* Broadcast message to God
*/
cspr.on('message', function forkMessage(msg) {
/*********************************
* If you edit this function
* Do the same in ClusterMode.js !
*********************************/
if (msg.data && msg.type) {
process.nextTick(function() {
return God.bus.emit(msg.type ? msg.type : 'process:msg', {
at : Utility.getDate(),
data : msg.data,
process : {
pm_id : cspr.pm2_env.pm_id,
name : cspr.pm2_env.name,
versioning : cspr.pm2_env.versioning,
namespace : cspr.pm2_env.namespace
}
});
});
}
else {
if (typeof msg == 'object' && 'node_version' in msg) {
cspr.pm2_env.node_version = msg.node_version;
return false;
}
return God.bus.emit('process:msg', {
at : Utility.getDate(),
raw : msg,
process : {
pm_id : cspr.pm2_env.pm_id,
name : cspr.pm2_env.name,
namespace : cspr.pm2_env.namespace
}
});
}
});
try {
var pid = cspr.pid
if (typeof(pid) !== 'undefined')
fs.writeFileSync(pidFile, pid.toString());
} catch (e) {
console.error(e.stack || e);
}
// once stdout/stderr are drained, see StdioLogger.onPipesClosed
StdioLogger.onPipesClosed(cspr, function forkClose() {
try {
stdio.flush();
StdioLogger.close(stds);
} catch(e) { God.logAndGenerateError(e);}
});
cspr._reloadLogs = function(cb) {
try {
StdioLogger.close(stds);
} catch(e) { God.logAndGenerateError(e);}
//cspr.removeAllListeners();
Utility.startLogging(stds, cb);
};
cspr.unref();
return cb(null, cspr);
});
};
};