[cs631apue] Questions about clean zombie children processes

[yluo4]

   Sorry, I may be wrong.  I find that kill grandparent will not kill 
grandchildren zombies.
  Yulong

On 11/02/2013 11:50 AM, yluo4 wrote:
> I don't think we need to handle the zombies.  Daemon will kill parent
> first, so when children exit, it will not be zombies.
>  Thanks,
>  Yulong
> 
> On 11/02/2013 12:52 AM, Hongyi Shen wrote:
>> Hello everyone:
>> 
>> After some searching, there seems to be two ways to kill exited child
>> processes.
>> #1. use SIGNAL() catch SIGCHLD with WAITPID() .  (or fork 2 times)
>> #2. terminate them by shell commands.
>> 
>> here is my question:
>> Which way does real world server do with this problem? 
>> If it is #1, when to SIGNAL() the zombies ? 
>> (I assume that should be each time new process forked, it check
>> whether SIGCHLD exist and then handle them)
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