On Tue, Nov 09, 2010 at 08:17:59AM +0100, Markus Bergkvist wrote:
> On 11/09/10 03:27, Philip Guenther wrote:
> >On Mon, Nov 8, 2010 at 4:10 PM, Christiano F. Haesbaert
> ><[email protected]> wrote:
> >>I must be doing something really silly but it seems waitpid ends up
> >>returning -1 if WNOHANG is specified and there are no children to
> >>reap.
> >
> >Umm, that's what the standard specifies.
> >
> >
>
> waitpid(2), RETURN VALUES
> "Otherwise, if WNOHANG is specified and there are no stopped or
> exited children, 0 is returned."
And before the "Otherwise", it says: "If there are no children not
previously awaited, -1 is returned with errno set to [ECHILD]."
To me this sentence is hard to understand, but I suspect the testcase
hits this part.
-Otto
