From: Francis Cianfrocca <garbagecat10@...>
Date: 2006-08-08T03:02:39+09:00
Subject: Re: How to recognize which child process has just ended?

Lukasz Muziol wrote:
> Hi!
> 
> The piece of software I'm working on now needs to fork child processes 
> and execute different programs (which terminate themselves). Also, some 
> child processes need to be killed/stopped/resumed and action needs to be 
> taken when a child is terminated. When the parent receives & traps the 
> SIGCLD signal, how does it know which child it is regarding and whether 
> it has been ended, terminated, stopped or resumed?
> 
> In brief, I need the information, which in C signal handling is 
> accessible via the siginfo_t structure.
> 
> Thanks.

Look at Process#wait2 and Process#waitpid2.

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