Re: waitpid(WNOHANG) should report SIGCHLD-notified signals [Re:[PATCH 09/11] job control: reorganize wait_task_stopped()]

From: Tejun Heo
Date: Mon May 16 2011 - 08:28:06 EST


On Mon, May 16, 2011 at 02:11:16PM +0200, Jan Kratochvil wrote:
> It cannot as various GDB-supported platforms do not support threads properly.
> And you want to have a common codebase to get it will supported.
> Besides that it is a matter of coding style, I perfer "poll() model" even on
> threads-supporting GNU/Linux.

The above wouldn't be linux kernel's top design concerns, right?

> > Anyways, I would recommend using sleeping wait(2)'s for ptrace event
> > tracking.
> You cannot as I described above.

If you prefer that, go ahead. It's not like new interface is gonna
break that, but I think it's gonna be more fragile. Well, it
shouldn't be worse than now.


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