src_partikle/fosa_clocks_and_timers.c

   1 /** fosa_clocks_and_timers.c
   2  *
   3  * < description >
   4  * < author >
   5  * < date >
   6  */
   7
   8 #include <fosa_clocks_and_timers.h>
   9
  10 /*************************
  11  * Timing: Clocks
  12  *************************/
  13 int fosa_clock_get_time(fosa_clock_id_t clockid, struct timespec *current_time)
  14 {
  15         if (clock_gettime (clockid, current_time))
  16                 return FOSA_EINVAL;
  17
  18         return 0;
  19 }
  20
  21
  22
  23 int fosa_thread_get_cputime_clock(frsh_thread_id_t tid, fosa_clock_id_t *clockid)
  24 {
  25 //      if (tid == thread_invalid)
  26 //              return FOSA_EINVAL;
  27
  28         *clockid = CLOCK_THREAD_CPUTIME_ID;
  29         return 0;
  30 }
  31
  32 /*************************
  33  * Timing: Timers
  34  *************************/
  35 int fosa_timer_create
  36                  (fosa_clock_id_t clockid, frsh_signal_t signal, frsh_signal_info_t info,
  37                   fosa_timer_id_t *timerid);
  38
  39 int fosa_timer_delete(fosa_timer_id_t timerid)
  40 {
  41         if (timer_delete (timerid))
  42                 return FOSA_EINVAL;
  43         return 0;
  44 }
  45
  46
  47 int fosa_timer_arm
  48                 (fosa_timer_id_t timerid, bool abstime,
  49                  const struct timespec *value)
  50 {
  51         struct itimerspec value =
  52         {
  53                 .it_value = (struct timespec) *value,
  54                 .it_interval = 0,
  55         }
  56
  57         if (timer_settime (timerid, abstime, &value, NULL))
  58                 return EINVAL;
  59
  60         return 0;
  61 }
  62
  63
  64 // TODO: CPU-clock ???
  65 int fosa_timer_get_remaining_time
  66                 (fosa_timer_id_t timerid, struct timespec *remaining_time)
  67 {
  68         struct itimerspec value;
  69
  70         if (timer_gettime (timerid, &value))
  71                 return EINVAL;
  72
  73         *remaining_time = value.it_value;
  74         return 0;
  75 }
  76
  77 int fosa_timer_disarm(fosa_timer_id_t timerid, struct timespec
  78                 *remaining_time)
  79 {
  80         struct itimerspec null_timer, old;
  81
  82         // NULL timer -> disarm
  83         value = (struct itimerspec) {
  84                 .it_value = {0, 0},
  85                 .it_interval = 0,
  86         }
  87
  88         if (timer_settime (timerid, 0, &null_timer, &old))
  89                 return EINVAL;
  90
  91         if (remaining_time)
  92                 *remaining_time = old.it_value;
  93
  94         return 0;
  95 }