sched_rr_get_interval(2) — DG/UX 5.4R3.00



sched_rr_get_interval(2)       DG/UX 5.4R3.00       sched_rr_get_interval(2)


NAME
       sched_rr_get_interval - get the execution timeslice for a process

SYNOPSIS
       #include <time.h>
       #include <sched.h>

       int schedrrgetinterval (pid, *interval)
            pidt          pid;
            struct timespec*interval;

DESCRIPTION
       For a process governed by the SCHED_RR scheduling policy (round robin
       with a timeslice), use schedrrgetinterval(2) to get the timeslice
       interval:

        pid    is the ID of a process controlled by the SCHED_RR policy. The
               value 0 indicates the calling process.

        interval
               is a pointer to a structure to contain the timeslice
               information.

       The POSIX-designated structure updated by this routine is shown
       below:

       struct timespec
           {
           timet  tvsec;
           long    tvnsec;
           };

       The time interval is expressed in seconds (tvsec) and nanoseconds
       (tvnsec).

       This call requires no access to pid.

   Note
        * This routine is based on POSIX realtime extension document P1003.4
          draft 14. It is therefore subject to change.

        * Compilation of a source file using this routine requires that
          feature macro _POSIX4_DRAFT_SOURCE be defined.  This feature macro
          is not enabled by any other feature macro, nor does it enable any
          other feature macro.

        * The compiled routine must be linked to library librte.a.

RETURN VALUE
       If successful, schedrrgetinterval returns 0. If unsuccessful, the
       routine returns -1 and sets ERRNO to one of the following:

        EFAULT The address of interval is bad.




Licensed material--property of copyright holder(s)                         1



sched_rr_get_interval(2)       DG/UX 5.4R3.00       sched_rr_get_interval(2)


        EINVAL Process pid is not under the SCHED_RR policy.

        ESRCH  Process pid doesn't exist or is negative.

SEE ALSO
       schedgetprioritymax(2), schedgetprioritymin(2),
       schedsetscheduler(2), schedgetscheduler(2), schedsetparam(2),
       schedgetparam(2), schedyield(2).

















































Licensed material--property of copyright holder(s)                         2

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