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iv_timer

iv_timer(3)						    ivykis programmer's manual						       iv_timer(3)

NAME

       iv_timer_register, iv_timer_unregister, iv_timer_registered - deal with ivykis timers

SYNOPSIS

       #include <iv.h>

       struct iv_timer {
	       struct timespec	       expires;
	       void		       *cookie;
	       void		       (*handler)(void *);
       };

       void IV_TIMER_INIT(struct iv_timer *timer);
       void iv_timer_register(struct iv_timer *timer);
       void iv_timer_unregister(struct iv_timer *timer);
       int iv_timer_registered(struct iv_timer *timer);

DESCRIPTION

       The  functions  iv_timer_register and iv_timer_unregister register, respectively unregister, a timer with the current thread's ivykis event
       loop.  iv_timer_registered on a timer returns true if that timer is currently registered with ivykis.

       When a timer that is registered becomes 'ready', due to the current system clock value becoming	greater  than  or  equal  to  the  timer's
       ->expires  member  field,  the  callback  function  specified  by  ->handler is called in the thread that the timer was registered in, with
       ->cookie as its first and sole argument.  When this happens, the timer is transparently unregistered.

       The application is allowed to change the ->cookie and ->handler members at any  time.   The  application  is  not  allowed  to  change  the
       ->expires member while the timer is registered.

       A given struct iv_timer can only be registered in one thread at a time, and a timer can only be unregistered in the thread that it was reg-
       istered from.

       There is no limit on the number of timers registered at once.

       See iv_examples(3) for programming examples.

SEE ALSO

       ivykis(3), iv_examples(3)

ivykis								    2010-08-15							       iv_timer(3)

Programming