LXR linux/kernel/time/posix-timers.h

   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 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        int     (*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};
  28
  29extern const struct k_clock clock_posix_cpu;
  30extern const struct k_clock clock_posix_dynamic;
  31extern const struct k_clock clock_process;
  32extern const struct k_clock clock_thread;
  33extern const struct k_clock alarm_clock;
  34
  35int posix_timer_event(struct k_itimer *timr, int si_private);
  36
  37void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting);
  38int common_timer_set(struct k_itimer *timr, int flags,
  39                     struct itimerspec64 *new_setting,
  40                     struct itimerspec64 *old_setting);
  41int common_timer_del(struct k_itimer *timer);
  42