1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #define TIMER_RETRY 1 3 4 enum posix_timer_state { 5 POSIX_TIMER_DISARMED, 6 POSIX_TIMER_ARMED, 7 POSIX_TIMER_REQUEUE_PENDING, 8 }; 9 10 struct k_clock { 11 int (*clock_getres)(const clockid_t which_clock, 12 struct timespec64 *tp); 13 int (*clock_set)(const clockid_t which_clock, 14 const struct timespec64 *tp); 15 /* Returns the clock value in the current time namespace. */ 16 int (*clock_get_timespec)(const clockid_t which_clock, 17 struct timespec64 *tp); 18 /* Returns the clock value in the root time namespace. */ 19 ktime_t (*clock_get_ktime)(const clockid_t which_clock); 20 int (*clock_adj)(const clockid_t which_clock, struct __kernel_timex *tx); 21 int (*timer_create)(struct k_itimer *timer); 22 int (*nsleep)(const clockid_t which_clock, int flags, 23 const struct timespec64 *); 24 int (*timer_set)(struct k_itimer *timr, int flags, 25 struct itimerspec64 *new_setting, 26 struct itimerspec64 *old_setting); 27 int (*timer_del)(struct k_itimer *timr); 28 void (*timer_get)(struct k_itimer *timr, 29 struct itimerspec64 *cur_setting); 30 void (*timer_rearm)(struct k_itimer *timr); 31 s64 (*timer_forward)(struct k_itimer *timr, ktime_t now); 32 ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now); 33 int (*timer_try_to_cancel)(struct k_itimer *timr); 34 void (*timer_arm)(struct k_itimer *timr, ktime_t expires, 35 bool absolute, bool sigev_none); 36 void (*timer_wait_running)(struct k_itimer *timr); 37 }; 38 39 extern const struct k_clock clock_posix_cpu; 40 extern const struct k_clock clock_posix_dynamic; 41 extern const struct k_clock clock_process; 42 extern const struct k_clock clock_thread; 43 extern const struct k_clock alarm_clock; 44 45 void posix_timer_queue_signal(struct k_itimer *timr); 46 47 void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting); 48 int common_timer_set(struct k_itimer *timr, int flags, 49 struct itimerspec64 *new_setting, 50 struct itimerspec64 *old_setting); 51 void posix_timer_set_common(struct k_itimer *timer, struct itimerspec64 *new_setting); 52 int common_timer_del(struct k_itimer *timer); 53