kc3-lang/libressl/include/compat/time.h

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• Hash : 7af3ba34
  Author :
  Date : 2019-01-06T13:20:29
  

  add configure-time check for timespecsub
  

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• include/compat/time.h

• /*
   * Public domain
   * sys/time.h compatibility shim
   */
  
  #ifdef _MSC_VER
  #if _MSC_VER >= 1900
  #include <../ucrt/time.h>
  #else
  #include <../include/time.h>
  #endif
  #else
  #include_next <time.h>
  #endif
  
  #ifndef LIBCRYPTOCOMPAT_TIME_H
  #define LIBCRYPTOCOMPAT_TIME_H
  
  #ifdef _WIN32
  struct tm *__gmtime_r(const time_t * t, struct tm * tm);
  #define gmtime_r(tp, tm) __gmtime_r(tp, tm)
  #endif
  
  #ifndef HAVE_TIMEGM
  time_t timegm(struct tm *tm);
  #endif
  
  #ifndef CLOCK_MONOTONIC
  #define CLOCK_MONOTONIC CLOCK_REALTIME
  #endif
  
  #ifndef CLOCK_REALTIME
  #define CLOCK_REALTIME 0
  #endif
  
  #ifndef _WIN32
  #ifndef HAVE_CLOCK_GETTIME
  typedef int clockid_t;
  int clock_gettime(clockid_t clock_id, struct timespec *tp);
  #endif
  
  #ifdef timespecsub
  #define HAVE_TIMESPECSUB
  #endif
  
  #ifndef HAVE_TIMESPECSUB
  #define timespecsub(tsp, usp, vsp)                                      \
          do {                                                            \
                  (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;          \
                  (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;       \
                  if ((vsp)->tv_nsec < 0) {                               \
                          (vsp)->tv_sec--;                                \
                          (vsp)->tv_nsec += 1000000000L;                  \
                  }                                                       \
          } while (0)
  #endif
  
  #endif
  
  #endif
  

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