47 lines
1.0 KiB
JavaScript
47 lines
1.0 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var os = require('os');
|
||
|
|
var bin = require('./bin');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the list of all the pids of the system through the ps command.
|
||
|
|
* @param {Function} callback(err, list)
|
||
|
|
*/
|
||
|
|
function ps(callback) {
|
||
|
|
var args = ['-A', '-o', 'ppid,pid'];
|
||
|
|
|
||
|
|
bin('ps', args, function(err, stdout, code) {
|
||
|
|
if (err) return callback(err);
|
||
|
|
if (code !== 0) {
|
||
|
|
return callback(new Error('pidtree ps command exited with code ' + code));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Example of stdout
|
||
|
|
//
|
||
|
|
// PPID PID
|
||
|
|
// 1 430
|
||
|
|
// 430 432
|
||
|
|
// 1 727
|
||
|
|
// 1 7166
|
||
|
|
|
||
|
|
try {
|
||
|
|
stdout = stdout.split(os.EOL);
|
||
|
|
|
||
|
|
var list = [];
|
||
|
|
for (var i = 1; i < stdout.length; i++) {
|
||
|
|
stdout[i] = stdout[i].trim();
|
||
|
|
if (!stdout[i]) continue;
|
||
|
|
stdout[i] = stdout[i].split(/\s+/);
|
||
|
|
stdout[i][0] = parseInt(stdout[i][0], 10); // PPID
|
||
|
|
stdout[i][1] = parseInt(stdout[i][1], 10); // PID
|
||
|
|
list.push(stdout[i]);
|
||
|
|
}
|
||
|
|
callback(null, list);
|
||
|
|
} catch (err) {
|
||
|
|
callback(err);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = ps;
|