subprocess.ref()

在调用 subprocess.unref() 后调用 subprocess.ref() 将恢复子进程的已删除引用计数，从而强制父进程等待子进程退出后再退出自身。

¥Calling subprocess.ref() after making a call to subprocess.unref() will restore the removed reference count for the child process, forcing the parent process to wait for the child process to exit before exiting itself.

const { spawn } = require('node:child_process');
const process = require('node:process');

const subprocess = spawn(process.argv[0], ['child_program.js'], {
  detached: true,
  stdio: 'ignore',
});

subprocess.unref();
subprocess.ref();import { spawn } from 'node:child_process';
import process from 'node:process';

const subprocess = spawn(process.argv[0], ['child_program.js'], {
  detached: true,
  stdio: 'ignore',
});

subprocess.unref();
subprocess.ref();拷贝