libc-bottom-half/clocks/times.c

   1 #define _WASI_EMULATED_PROCESS_CLOCKS
   2 #include <time.h>
   3 #include <sys/times.h>
   4 #include <wasi/api.h>
   5 #include <common/time.h>
   6
   7 _Static_assert(
   8     CLOCKS_PER_SEC == NSEC_PER_SEC,
   9     "This implementation assumes that `clock` is in nanoseconds"
  10 );
  11
  12 clock_t __clock(void);
  13
  14 clock_t times(struct tms *buffer) {
  15     __wasi_timestamp_t user = __clock();
  16     *buffer = (struct tms){
  17         .tms_utime = user,
  18         .tms_cutime = user
  19     };
  20
  21     __wasi_timestamp_t realtime = 0;
  22     (void)__wasi_clock_time_get(__WASI_CLOCKID_MONOTONIC, 0, &realtime);
  23     return realtime;
  24 }