CLOCK_SETTIME(2)CLOCK_SETTIME(2)NAMEclock_settime - Set the specified clock
SYNOPSIS
long sys_clock_settime (clockid_t which_clock,
const struct timespec *tp);
DESCRIPTIONclock_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.
SEE ALSOclock_getres(2), clock_nanosleep(2), clock_gettime(2)AUTHOR
Niki Rahimi
CLOCK_SETTIME(2)