clock_settime – Set the specified clock

USAGE
       long sys_clock_settime (clockid_t which_clock,
                               const struct timespec *tp);

DESCRIPTION
       clock_settime sets the specified clock, which_clock, to the value spec-
       ified  by tp. The values that clockid_t currently supports for POSIX.1b
       timers, defined in include/linux/time.h, are:

       CLOCK_REALTIME
              Systemwide realtime clock.

       CLOCK_MONOTONIC
              Represents monotonic time. Cannot be set.

       CLOCK_PROCESS_CPUTIME_ID
              High resolution per-process timer.

       CLOCK_THREAD_CPUTIME_ID
              Thread-specific timer.

       CLOCK_REALTIME_HR
              High resolution version of CLOCK_REALTIME.

       CLOCK_MONOTONIC_HR
              High resolution version of CLOCK_MONOTONIC.

RETURN VALUE
       clock_gettime returns 0 on success; otherwise, it returns  one  of  the
       errors listed in the "Errors" section.

ERRORS
       -EINVAL
              An invalid which_clock value was specified.

       -EFAULT
              Can not copy tp value to kernel space.

AUTHOR
       Niki Rahimi