subprocess.ref()

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新增于: v0.7.10

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 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();