diff options
| -rw-r--r-- | newlib/libc/include/sys/time.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/time.h b/newlib/libc/include/sys/time.h index 103f56660..370c13406 100644 --- a/newlib/libc/include/sys/time.h +++ b/newlib/libc/include/sys/time.h @@ -340,6 +340,33 @@ tvtosbt(struct timeval _tv) return (((sbintime_t)_tv.tv_sec << 32) + ustosbt(_tv.tv_usec)); } + +/* Operations on timespecs */ +#define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0) +#define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec) +#define timespeccmp(tvp, uvp, cmp) \ + (((tvp)->tv_sec == (uvp)->tv_sec) ? \ + ((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \ + ((tvp)->tv_sec cmp (uvp)->tv_sec)) + +#define timespecadd(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 >= 1000000000L) { \ + (vsp)->tv_sec++; \ + (vsp)->tv_nsec -= 1000000000L; \ + } \ + } while (0) +#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 /* __BSD_VISIBLE */ /* |