@theia/core
Version:
Theia is a cloud & desktop IDE framework implemented in TypeScript.
111 lines • 4.64 kB
JavaScript
;
// *****************************************************************************
// Copyright (C) 2021 Ericsson and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ProcessUtils = void 0;
const cp = require("child_process");
const inversify_1 = require("inversify");
/**
* `@theia/core` service with some process-related utilities.
*/
let ProcessUtils = class ProcessUtils {
terminateProcessTree(ppid) {
if (process.platform === 'win32') {
this.winTerminateProcessTree(ppid);
}
else {
this.unixTerminateProcessTree(ppid);
}
}
winTerminateProcessTree(ppid) {
this.spawnSync('taskkill.exe', ['/f', '/t', '/pid', ppid.toString(10)]);
}
unixTerminateProcessTree(ppid) {
for (const pid of this.unixGetChildrenRecursive(ppid)) {
// Prevent killing the current process:
if (pid !== process.pid) {
// Don't stop if a process fails to be killed (keep on killing the others):
try {
process.kill(pid);
}
catch (error) {
console.error(error);
}
}
}
if (ppid === this.unixGetPGID(ppid)) {
// When a process pgid === pid this means the the process is a group leader.
// We can then kill every process part of its group by doing `kill(-pgid)`.
// This can catch leaked processes under `init` that are still part of the group.
process.kill(-ppid);
}
process.kill(ppid);
}
unixGetPGID(pid) {
const { stdout } = this.spawnSync('ps', ['-p', pid.toString(10), '-o', 'pgid=']);
return Number.parseInt(stdout, 10);
}
unixGetChildrenRecursive(ppid) {
const { stdout } = this.spawnSync('ps', ['ax', '-o', 'ppid=,pid=']);
const pids = new Set([ppid]);
const matcher = /(\d+)\s+(\d+)/;
const psList = stdout
.trim()
.split('\n')
.map(line => {
const match = line.match(matcher);
return {
ppid: Number.parseInt(match[1], 10),
pid: Number.parseInt(match[2], 10),
};
});
// Keep looking for parent/child relationships while we keep finding new parents:
let size;
do {
size = pids.size;
for (const child of psList) {
if (pids.has(child.ppid)) {
pids.add(child.pid);
}
}
} while (size !== pids.size);
// Exclude the requested parent id:
pids.delete(ppid);
return pids;
}
spawnSync(file, argv, options) {
var _a;
const result = cp.spawnSync(file, argv, { ...options, encoding: 'utf8' });
if (result.error) {
throw result.error;
}
if (result.status !== 0) {
throw new Error(`${JSON.stringify(file)} exited with ${(_a = result.status) !== null && _a !== void 0 ? _a : result.signal}. Output:\n${JSON.stringify(result.output)}`);
}
return result;
}
};
ProcessUtils = __decorate([
(0, inversify_1.injectable)()
], ProcessUtils);
exports.ProcessUtils = ProcessUtils;
//# sourceMappingURL=process-utils.js.map