projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| da7c5cc6 | 1 | /* |
| 56559b70 KB |
2 | * Copyright (c) 1982, 1986, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. | |
| da7c5cc6 | 4 | * |
| 6dc0e27a | 5 | * %sccs.include.redist.c% |
| f4500e15 | 6 | * |
| 56559b70 | 7 | * @(#)time.h 8.1 (Berkeley) %G% |
| da7c5cc6 | 8 | */ |
| 2ded0c90 | 9 | |
| 91befe9c KB |
10 | #ifndef _SYS_TIME_H_ |
| 11 | #define _SYS_TIME_H_ | |
| 2f78880a | 12 | |
| 2ded0c90 SL |
13 | /* |
| 14 | * Structure returned by gettimeofday(2) system call, | |
| 15 | * and used in other calls. | |
| 16 | */ | |
| 17 | struct timeval { | |
| 18 | long tv_sec; /* seconds */ | |
| 19 | long tv_usec; /* and microseconds */ | |
| 20 | }; | |
| 21 | ||
| 9f5460ba KM |
22 | /* |
| 23 | * Structure defined by POSIX.4 to be like a timeval. | |
| 24 | */ | |
| 25 | struct timespec { | |
| 26 | long ts_sec; /* seconds */ | |
| 27 | long ts_nsec; /* and nanoseconds */ | |
| 28 | }; | |
| 29 | ||
| 85b67eab KB |
30 | #define TIMEVAL_TO_TIMESPEC(tv, ts) { \ |
| 31 | (ts)->ts_sec = (tv)->tv_sec; \ | |
| 32 | (ts)->ts_nsec = (tv)->tv_usec * 1000; \ | |
| 33 | } | |
| 34 | #define TIMESPEC_TO_TIMEVAL(tv, ts) { \ | |
| 35 | (tv)->tv_sec = (ts)->ts_sec; \ | |
| 36 | (tv)->tv_usec = (ts)->ts_nsec / 1000; \ | |
| 37 | } | |
| 38 | ||
| 2ded0c90 SL |
39 | struct timezone { |
| 40 | int tz_minuteswest; /* minutes west of Greenwich */ | |
| 41 | int tz_dsttime; /* type of dst correction */ | |
| 42 | }; | |
| 43 | #define DST_NONE 0 /* not on dst */ | |
| 1871c085 | 44 | #define DST_USA 1 /* USA style dst */ |
| ade46307 | 45 | #define DST_AUST 2 /* Australian style dst */ |
| 1871c085 SL |
46 | #define DST_WET 3 /* Western European dst */ |
| 47 | #define DST_MET 4 /* Middle European dst */ | |
| 48 | #define DST_EET 5 /* Eastern European dst */ | |
| 37201327 | 49 | #define DST_CAN 6 /* Canada */ |
| 2ded0c90 | 50 | |
| 3d3f5466 | 51 | /* Operations on timevals. */ |
| 2ded0c90 | 52 | #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 |
| 3d3f5466 KB |
53 | #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) |
| 54 | #define timercmp(tvp, uvp, cmp) \ | |
| 55 | (((tvp)->tv_sec == (uvp)->tv_sec) ? \ | |
| 56 | ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ | |
| 57 | ((tvp)->tv_sec cmp (uvp)->tv_sec)) | |
| 2ded0c90 SL |
58 | |
| 59 | /* | |
| 60 | * Names of the interval timers, and structure | |
| 61 | * defining a timer setting. | |
| 62 | */ | |
| 63 | #define ITIMER_REAL 0 | |
| 64 | #define ITIMER_VIRTUAL 1 | |
| 65 | #define ITIMER_PROF 2 | |
| 66 | ||
| 67 | struct itimerval { | |
| 68 | struct timeval it_interval; /* timer interval */ | |
| 69 | struct timeval it_value; /* current value */ | |
| 70 | }; | |
| 71 | ||
| b6d61c5a KM |
72 | /* |
| 73 | * Getkerninfo clock information structure | |
| 74 | */ | |
| 75 | struct clockinfo { | |
| 6f347f89 KM |
76 | int hz; /* clock frequency */ |
| 77 | int tick; /* micro-seconds per hz tick */ | |
| 78 | int stathz; /* statistics clock frequency */ | |
| 79 | int profhz; /* profiling clock frequency */ | |
| b6d61c5a KM |
80 | }; |
| 81 | ||
| 2ded0c90 | 82 | #ifndef KERNEL |
| 31db6542 | 83 | #include <time.h> |
| d0a2b281 DS |
84 | |
| 85 | #ifndef _POSIX_SOURCE | |
| 86 | #include <sys/cdefs.h> | |
| 87 | ||
| 88 | __BEGIN_DECLS | |
| 89 | int adjtime __P((const struct timeval *, struct timeval *)); | |
| 90 | int getitimer __P((int, struct itimerval *)); | |
| 91 | int gettimeofday __P((struct timeval *, struct timezone *)); | |
| 92 | int setitimer __P((int, const struct itimerval *, struct itimerval *)); | |
| 93 | int settimeofday __P((const struct timeval *, const struct timezone *)); | |
| 94 | int utimes __P((const char *, const struct timeval *)); | |
| 95 | __END_DECLS | |
| 96 | #endif /* !POSIX */ | |
| 97 | ||
| 98 | #endif /* !KERNEL */ | |
| 2f78880a | 99 | |
| 91befe9c | 100 | #endif /* !_SYS_TIME_H_ */ |