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