Note how the child knows its parent through getppid and how the parent USES the result of fork to locate its child.

请注意子进程如何通过getppid来知道其父进程以及父进程如何使用fork来定位其子进程。

youdao

Note how the child knows its parent through getppid and how the parent USES the result of fork to locate its child.

请注意子进程如何通过getppid来知道其父进程以及父进程如何使用fork来定位其子进程。

youdao