Node.js ChildProcess subprocess.ref()用法及代码示例

subprocess.ref()

在调用subprocess.unref() 之后调用subprocess.ref() 将恢复子进程已删除的引用计数，迫使父进程等待子进程退出后再自行退出。

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

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

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