kc3-lang/kc3/libkc3/timespec.c

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• Hash : dec6e133
  Author : Thomas de Grivel
  Date : 2025-07-25T12:49:22
  

  time.c -> timespec.c
  

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• libkc3/timespec.c

• /* kc3
   * Copyright from 2022 to 2025 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include "timespec.h"
  
  s_timespec * timespec_sub (const s_timespec *a, const s_timespec *b,
                             s_timespec *dest)
  {
    if ((a->tv_nsec - b->tv_nsec) < 0) {
      dest->tv_sec = a->tv_sec - b->tv_sec - 1;
      dest->tv_nsec = 1000000000 + a->tv_nsec - b->tv_nsec;
    } else {
      dest->tv_sec = a->tv_sec - b->tv_sec;
      dest->tv_nsec = a->tv_nsec - b->tv_nsec;
    }
    return dest;
  }
  
  f64 * timespec_to_f64 (const s_timespec *time, f64 *dest)
  {
    *dest = (f64) time->tv_sec + (f64) time->tv_nsec * 0.000000001;
    return dest;
  }
  

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