node spawn args

node를 이용하여 RPC 비스므리하게 구현해본 예제

근데 windows + node.js라 kill을 테스트 해보진 못함

var express = require('express');

var spawn = require('child_process').spawn;

var router = express.Router();

var proc_list = [];

var pid_list = [];

function find_pid(pid) {

var len = pid_list.length;

for (var i = 0; i < len; i++) {

if (proc_list[i]['pid'] == pid) {

return i;

}

}

return -1;

}

// create proces

router.post('/program', (req, res, next) => {

var cmd = req.query.cmd;

var args = req.query.args;

// console.log("req.query:"+JSON.stringify(req.query));

console.log("cmd:" + cmd);

console.log("args:" + args);

var argstring = args.split(" ");

var argslist = [];

for (var i = 0; i < argstring.length; i++) {

argslist.push(argstring[i]);

if (i != argstring.length - 1) {

argslist.push(" ");

}

}

child = spawn(cmd, argslist);

child.on('error', function (err) {

console.log(err);

});

var pid = child.pid;

console.log("cmd executed");

pid_list.push(pid);

proc_list.push({ 'pid': pid, 'obj': child });

res.send('' + pid);

});

// read process list

router.get('/program', (req, res, next) => {

console.log('get');

res.send(pid_list);

});

// update

// router.put('/program', (req, res, next) => {

// });

// delete

router.delete('/program', (req, res, next) => {

var pid = req.body.pid;

var val = find_pid(pid);

if (val != -1) {

pid_list.splice(val, 1);

proc_list[val].obj.kill();

proc_list.splice(val, 1);

}

res.send(pid + ' killed');

});

module.exports = router;

[링크 : https://stackoverflow.com/questions/18334181/spawn-on-node-js-windows-server-2012]

[링크 : https://stackoverflow.com/questions/26425637/javascript-split-string-with-white-space]