time.h (480B)
- #include_next <sys/time.h>
- #define timespeccmp(tsp, usp, cmp) \
- (((tsp)->tv_sec == (usp)->tv_sec) ? \
- ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
- ((tsp)->tv_sec cmp (usp)->tv_sec))
- #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)