1/* SPDX-License-Identifier: GPL-2.0 */
 2#define TIMER_RETRY 1
 3
 4struct k_clock {
 5	int	(*clock_getres)(const clockid_t which_clock,
 6				struct timespec64 *tp);
 7	int	(*clock_set)(const clockid_t which_clock,
 8			     const struct timespec64 *tp);
 9	int	(*clock_get)(const clockid_t which_clock,
10			     struct timespec64 *tp);
11	int	(*clock_adj)(const clockid_t which_clock, struct __kernel_timex *tx);
12	int	(*timer_create)(struct k_itimer *timer);
13	int	(*nsleep)(const clockid_t which_clock, int flags,
14			  const struct timespec64 *);
15	int	(*timer_set)(struct k_itimer *timr, int flags,
16			     struct itimerspec64 *new_setting,
17			     struct itimerspec64 *old_setting);
18	int	(*timer_del)(struct k_itimer *timr);
19	void	(*timer_get)(struct k_itimer *timr,
20			     struct itimerspec64 *cur_setting);
21	void	(*timer_rearm)(struct k_itimer *timr);
22	s64	(*timer_forward)(struct k_itimer *timr, ktime_t now);
23	ktime_t	(*timer_remaining)(struct k_itimer *timr, ktime_t now);
24	int	(*timer_try_to_cancel)(struct k_itimer *timr);
25	void	(*timer_arm)(struct k_itimer *timr, ktime_t expires,
26			     bool absolute, bool sigev_none);
27	void	(*timer_wait_running)(struct k_itimer *timr);
28};
29
30extern const struct k_clock clock_posix_cpu;
31extern const struct k_clock clock_posix_dynamic;
32extern const struct k_clock clock_process;
33extern const struct k_clock clock_thread;
34extern const struct k_clock alarm_clock;
35
36int posix_timer_event(struct k_itimer *timr, int si_private);
37
38void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting);
39int common_timer_set(struct k_itimer *timr, int flags,
40		     struct itimerspec64 *new_setting,
41		     struct itimerspec64 *old_setting);
42int common_timer_del(struct k_itimer *timer);