If not, the target object sends a message to the parent.
如果没有，目标对象向父对象发送一条消息。
2
The daemon process is terminated either during normal plug-in termination (message in a named pipe to terminate) or if it is signaled that the parent process has terminated.
当插件正常终止(命名管道中出现终止消息)时，或者在发现父进程已经终止时，这个守护进程就被终止。
3
After all, the most important message a parent can give is not about the mistakes that can derail a child, but about the joys of finding your way.