kernel/time/posix-timers.h

   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);