clock_getres(2) — DG/UX 5.4R3.00



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


NAME
       clock_getres - get the resolution of the system clock

SYNOPSIS
       #include <time.h>

       int clockgetres (clockid, *res)
            clockt   clockid;
            struct timespec *res;

DESCRIPTION
       Use clockgetres(2) to get the resolution res (interval in
       nanoseconds between clock resets) of the system-wide realtime clock.
       The value of clockid must be CLOCK_REALTIME.

   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, clockgetres returns 0. If unsuccessful, the routine
       returns -1 and sets ERRNO to:

        EFAULT The address of res is bad.

        EINVAL The value of clockid is not CLOCK_REALTIME.

SEE ALSO
       clockgettime(2), timercreate(2), timerdelete(2), timersettime(2),
       timergettime(2), timergetoverrun(2).




















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