4 * Copyright (c) 1982, 1986, 1993
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8 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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31 * @(#)time.h 8.5 (Berkeley) 5/4/95
34 #ifndef _LIBNETBSD_SYS_TIME_H_
35 #define _LIBNETBSD_SYS_TIME_H_
37 #include_next <sys/time.h>
39 /* Operations on timespecs. */
40 #define timespecclear(tsp) (tsp)->tv_sec = (time_t)((tsp)->tv_nsec = 0L)
41 #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec)
42 #define timespeccmp(tsp, usp, cmp) \
43 (((tsp)->tv_sec == (usp)->tv_sec) ? \
44 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
45 ((tsp)->tv_sec cmp (usp)->tv_sec))
46 #define timespecadd(tsp, usp, vsp) \
48 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
49 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
50 if ((vsp)->tv_nsec >= 1000000000L) { \
52 (vsp)->tv_nsec -= 1000000000L; \
54 } while (/* CONSTCOND */ 0)
55 #define timespecsub(tsp, usp, vsp) \
57 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
58 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
59 if ((vsp)->tv_nsec < 0) { \
61 (vsp)->tv_nsec += 1000000000L; \
63 } while (/* CONSTCOND */ 0)