subprocess.ref()

在调用 subprocess.unref() 之后调用 subprocess.ref() 将恢复子进程被移除的引用计数，强制父进程在自己退出之前等待子进程退出。

【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