关闭父进程与子进程之间的 IPC 通道,一旦没有其他的连接使其保持活跃,则允许子进程正常退出。 调用该方法后,则父进程和子进程上各自的 subprocess.connectedprocess.connected 属性都会被设为 false,且进程之间不能再传递消息。

当进程中没有正被接收的消息时,就会触发 'disconnect' 事件。 这经常在调用 subprocess.disconnect() 后被立即触发。

当子进程是一个 Node.js 实例时(例如使用 child_process.fork() 衍生),也可以在子进程中调用 process.disconnect() 方法来关闭 IPC 通道。

Closes the IPC channel between parent and child, allowing the child to exit gracefully once there are no other connections keeping it alive. After calling this method the subprocess.connected and process.connected properties in both the parent and child (respectively) will be set to false, and it will be no longer possible to pass messages between the processes.

The 'disconnect' event will be emitted when there are no messages in the process of being received. This will most often be triggered immediately after calling subprocess.disconnect().

When the child process is a Node.js instance (e.g. spawned using child_process.fork()), the process.disconnect() method can be invoked within the child process to close the IPC channel as well.