[337] | 1 | #ifndef _SYS_TIME_H
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| 2 | #define _SYS_TIME_H
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| 3 | #ifdef __cplusplus
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| 4 | extern "C" {
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| 5 | #endif
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| 6 |
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| 7 | #include <features.h>
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| 8 |
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| 9 | #include <sys/select.h>
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| 10 |
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| 11 | int gettimeofday (struct timeval *__restrict, void *__restrict);
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| 12 |
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| 13 | #define ITIMER_REAL 0
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| 14 | #define ITIMER_VIRTUAL 1
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| 15 | #define ITIMER_PROF 2
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| 16 |
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| 17 | struct itimerval {
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| 18 | struct timeval it_interval;
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| 19 | struct timeval it_value;
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| 20 | };
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| 21 |
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| 22 | int getitimer (int, struct itimerval *);
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| 23 | int setitimer (int, const struct itimerval *__restrict, struct itimerval *__restrict);
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| 24 | int utimes (const char *, const struct timeval [2]);
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| 25 |
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| 26 | #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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| 27 | struct timezone {
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| 28 | int tz_minuteswest;
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| 29 | int tz_dsttime;
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| 30 | };
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| 31 | int futimes(int, const struct timeval [2]);
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| 32 | int futimesat(int, const char *, const struct timeval [2]);
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| 33 | int lutimes(const char *, const struct timeval [2]);
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| 34 | int settimeofday(const struct timeval *, const struct timezone *);
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| 35 | int adjtime (const struct timeval *, struct timeval *);
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| 36 | #define timerisset(t) ((t)->tv_sec || (t)->tv_usec)
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| 37 | #define timerclear(t) ((t)->tv_sec = (t)->tv_usec = 0)
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| 38 | #define timercmp(s,t,op) ((s)->tv_sec == (t)->tv_sec ? \
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| 39 | (s)->tv_usec op (t)->tv_usec : (s)->tv_sec op (t)->tv_sec)
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| 40 | #define timeradd(s,t,a) (void) ( (a)->tv_sec = (s)->tv_sec + (t)->tv_sec, \
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| 41 | ((a)->tv_usec = (s)->tv_usec + (t)->tv_usec) >= 1000000 && \
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| 42 | ((a)->tv_usec -= 1000000, (a)->tv_sec++) )
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| 43 | #define timersub(s,t,a) (void) ( (a)->tv_sec = (s)->tv_sec - (t)->tv_sec, \
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| 44 | ((a)->tv_usec = (s)->tv_usec - (t)->tv_usec) < 0 && \
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| 45 | ((a)->tv_usec += 1000000, (a)->tv_sec--) )
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| 46 | #endif
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| 47 |
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| 48 | #if defined(_GNU_SOURCE)
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| 49 | #define TIMEVAL_TO_TIMESPEC(tv, ts) ( \
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| 50 | (ts)->tv_sec = (tv)->tv_sec, \
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| 51 | (ts)->tv_nsec = (tv)->tv_usec * 1000, \
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| 52 | (void)0 )
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| 53 | #define TIMESPEC_TO_TIMEVAL(tv, ts) ( \
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| 54 | (tv)->tv_sec = (ts)->tv_sec, \
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| 55 | (tv)->tv_usec = (ts)->tv_nsec / 1000, \
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| 56 | (void)0 )
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| 57 | #endif
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| 58 |
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| 59 | #ifdef __cplusplus
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| 60 | }
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| 61 | #endif
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| 62 | #endif
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