TIMER_CREATE(2) System Calls Manual TIMER_CREATE(2)
timer_create -- create a per-process timer
Standard C Library (libc, -lc)
timer_create(clockid_t clockid, struct sigevent * restrict evp, timer_t *
The timer_create() function creates a per-process timer using the clock
specified in the clockid argument. If it succeeds, the timer_create()
function fills in the timerid argument with an id associated with the
timer created that can be used by other timer related calls. The clockid
must be a valid clock id as defined in <time.h>. The timer is created in
a disarmed state.
An optional (non-NULL) struct sigevent argument can be specified by the
evp argument. If the evp argument is NULL, then evp->sigev_notify
defaults to SIGEV_SIGNAL and evp->sigev_value is set to timerid. Refer
to sigevent(3) for more details.
Timers are not inherited after a fork(2) and are disarmed and deleted by
If successful, the timer_create() function returns 0, and fills in the
timerid argument with the id of the new timer that was created.
Otherwise, it returns -1, and sets errno to indicate the error.
The timer_create() function will fail if:
[EAGAIN] The system is out of resources to satisfy this
request, or the process has created all the timers it
[EINVAL] The argument clockid is not a valid clock id.
clock_getres(2), clock_gettime(2), clock_settime(2), timer_delete(2),
timer_getoverrun(2), timer_gettime(2), timer_settime(2)
IEEE Std 1003.1b-1993 (``POSIX.1''), IEEE Std 1003.1i-1995 (``POSIX.1'')
NetBSD 6.1.5 May 19, 2010 NetBSD 6.1.5