35 lines
738 B
JavaScript
35 lines
738 B
JavaScript
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const spawn = require('child_process').spawn;
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module.exports = function(rootPid, callback) {
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const tree = {};
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var output = '';
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// *nix
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const ps = spawn('ps', ['-A', '-o', 'ppid,pid']);
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ps.stdout.on('data', data => {
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output += data.toString('ascii');
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});
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ps.on('close', () => {
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try {
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const res = output
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.split('\n')
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.slice(1)
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.map(_ => _.trim())
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.reduce((acc, line) => {
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if (line.indexOf(rootPid + ' ') === 0) {
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const pid = line.split(/\s+/).pop();
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acc.push(parseInt(pid, 10));
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rootPid = pid;
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}
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return acc;
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}, []);
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callback(null, res);
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} catch (e) {
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callback(e, null);
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}
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});
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};
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