contrib/libfido2/openbsd-compat/time.h

   1 /*
   2  * Public domain
   3  * sys/time.h compatibility shim
   4  */
   5
   6 #if defined(_MSC_VER) && (_MSC_VER >= 1900)
   7 #include <../ucrt/time.h>
   8 #elif defined(_MSC_VER) && (_MSC_VER < 1900)
   9 #include <../include/time.h>
  10 #else
  11 #include <time.h>
  12 #endif
  13
  14 #ifndef _COMPAT_TIME_H
  15 #define _COMPAT_TIME_H
  16
  17 #ifndef CLOCK_MONOTONIC
  18 #define CLOCK_MONOTONIC CLOCK_REALTIME
  19 #endif
  20
  21 #ifndef CLOCK_REALTIME
  22 #define CLOCK_REALTIME 0
  23 #endif
  24
  25 #ifndef HAVE_CLOCK_GETTIME
  26 typedef int clockid_t;
  27 int clock_gettime(clockid_t, struct timespec *);
  28 #endif
  29
  30 #ifdef HAVE_TIMESPECSUB
  31 #include <sys/time.h>
  32 #endif
  33
  34 #ifndef HAVE_TIMESPECSUB
  35 #define timespecadd(tsp, usp, vsp)                                      \
  36         do {                                                            \
  37                 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec;          \
  38                 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec;       \
  39                 if ((vsp)->tv_nsec >= 1000000000L) {                    \
  40                         (vsp)->tv_sec++;                                \
  41                         (vsp)->tv_nsec -= 1000000000L;                  \
  42                 }                                                       \
  43         } while (0)
  44
  45 #define timespecsub(tsp, usp, vsp)                                      \
  46         do {                                                            \
  47                 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;          \
  48                 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;       \
  49                 if ((vsp)->tv_nsec < 0) {                               \
  50                         (vsp)->tv_sec--;                                \
  51                         (vsp)->tv_nsec += 1000000000L;                  \
  52                 }                                                       \
  53         } while (0)
  54
  55 #define timespeccmp(tsp, usp, cmp)                                      \
  56         (((tsp)->tv_sec == (usp)->tv_sec) ?                             \
  57             ((tsp)->tv_nsec cmp (usp)->tv_nsec) :                       \
  58             ((tsp)->tv_sec cmp (usp)->tv_sec))
  59 #endif
  60
  61 #endif /* _COMPAT_TIME_H */