xref: /openbmc/linux/kernel/time/posix-timers.h (revision 4da722ca)
1 #define TIMER_RETRY 1
2 
3 struct k_clock {
4 	int	(*clock_getres)(const clockid_t which_clock,
5 				struct timespec64 *tp);
6 	int	(*clock_set)(const clockid_t which_clock,
7 			     const struct timespec64 *tp);
8 	int	(*clock_get)(const clockid_t which_clock,
9 			     struct timespec64 *tp);
10 	int	(*clock_adj)(const clockid_t which_clock, struct timex *tx);
11 	int	(*timer_create)(struct k_itimer *timer);
12 	int	(*nsleep)(const clockid_t which_clock, int flags,
13 			  const struct timespec64 *);
14 	int	(*timer_set)(struct k_itimer *timr, int flags,
15 			     struct itimerspec64 *new_setting,
16 			     struct itimerspec64 *old_setting);
17 	int	(*timer_del)(struct k_itimer *timr);
18 	void	(*timer_get)(struct k_itimer *timr,
19 			     struct itimerspec64 *cur_setting);
20 	void	(*timer_rearm)(struct k_itimer *timr);
21 	int	(*timer_forward)(struct k_itimer *timr, ktime_t now);
22 	ktime_t	(*timer_remaining)(struct k_itimer *timr, ktime_t now);
23 	int	(*timer_try_to_cancel)(struct k_itimer *timr);
24 	void	(*timer_arm)(struct k_itimer *timr, ktime_t expires,
25 			     bool absolute, bool sigev_none);
26 };
27 
28 extern const struct k_clock clock_posix_cpu;
29 extern const struct k_clock clock_posix_dynamic;
30 extern const struct k_clock clock_process;
31 extern const struct k_clock clock_thread;
32 extern const struct k_clock alarm_clock;
33 
34 int posix_timer_event(struct k_itimer *timr, int si_private);
35 
36 void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting);
37 int common_timer_set(struct k_itimer *timr, int flags,
38 		     struct itimerspec64 *new_setting,
39 		     struct itimerspec64 *old_setting);
40 int common_timer_del(struct k_itimer *timer);
41