Re: Problem with time package, struct rusage and wait3

[Igor Khavkine]

"Arkadi E. Shishlov" wrote:
> 
> On Tue, Jul 31, 2001 at 10:14:55AM -0400, Igor Khavkine wrote:
> >  pid_t
> >  __wait3 (__WAIT_STATUS stat_loc, int options, struct rusage *usage)
> >  {
> > +     int err;
> > +
> 
>   err as pid_t?
> 
> arkadi.

Let this be a lesson to me... Do not post any patches before noon.

Yes, it should be `pid_t err', but that's not the only problem. wait3
wants rusage information for whatever processes it waits for, and it seems
that getrusage(RUSAGE_CHILDREN,...) returns "information is returned about
resources used by the terminated and waited-for children of the current 
process."
They don't seem to be the same thing.

Also, the Hurd version of getrusage() currently doesn't even support
RUSAGE_CHILDREN. I have tried to see how Linux differenciate between
these behaviors, however I have not been able to find the Linux
implementation of getrusage() in the C library at all. I am confused now,
is it implement as some macro wrapping the system call?

Igor