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root/include/sys/time.h/* [<][>][^][v][top][bottom][index][help] */INCLUDED FROM1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)time.h 8.5 (Berkeley) 5/4/95 30 */ 31 32 #ifndef _SYS_TIME_H_ 33 #define _SYS_TIME_H_ 34 35 #include <sys/types.h> 36 37 /* 38 * Structure returned by gettimeofday(2) system call, 39 * and used in other calls. 40 */ 41 struct timeval { 42 long tv_sec; /* seconds */ 43 long tv_usec; /* and microseconds */ 44 }; 45 46 /* 47 * Structure defined by POSIX.4 to be like a timeval. 48 */ 49 struct timespec { 50 time_t ts_sec; /* seconds */ 51 long ts_nsec; /* and nanoseconds */ 52 }; 53 54 #define TIMEVAL_TO_TIMESPEC(tv, ts) { \ 55 (ts)->ts_sec = (tv)->tv_sec; \ 56 (ts)->ts_nsec = (tv)->tv_usec * 1000; \ 57 } 58 #define TIMESPEC_TO_TIMEVAL(tv, ts) { \ 59 (tv)->tv_sec = (ts)->ts_sec; \ 60 (tv)->tv_usec = (ts)->ts_nsec / 1000; \ 61 } 62 63 struct timezone { 64 int tz_minuteswest; /* minutes west of Greenwich */ 65 int tz_dsttime; /* type of dst correction */ 66 }; 67 68 #define DST_NONE 0 /* not on dst */ 69 #define DST_USA 1 /* USA style dst */ 70 #define DST_AUST 2 /* Australian style dst */ 71 #define DST_WET 3 /* Western European dst */ 72 #define DST_MET 4 /* Middle European dst */ 73 #define DST_EET 5 /* Eastern European dst */ 74 #define DST_CAN 6 /* Canada */ 75 76 /* Operations on timevals. */ 77 #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 78 #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 79 #define timercmp(tvp, uvp, cmp) \ 80 (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 81 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 82 ((tvp)->tv_sec cmp (uvp)->tv_sec)) 83 84 /* 85 * Names of the interval timers, and structure 86 * defining a timer setting. 87 */ 88 #define ITIMER_REAL 0 89 #define ITIMER_VIRTUAL 1 90 #define ITIMER_PROF 2 91 92 struct itimerval { 93 struct timeval it_interval; /* timer interval */ 94 struct timeval it_value; /* current value */ 95 }; 96 97 /* 98 * Getkerninfo clock information structure 99 */ 100 struct clockinfo { 101 int hz; /* clock frequency */ 102 int tick; /* micro-seconds per hz tick */ 103 int stathz; /* statistics clock frequency */ 104 int profhz; /* profiling clock frequency */ 105 }; 106 107 #ifndef KERNEL 108 #include <time.h> 109 110 #ifndef _POSIX_SOURCE 111 #include <sys/cdefs.h> 112 113 __BEGIN_DECLS 114 int gettimeofday(struct timeval *, struct timezone *); 115 #if 0 116 int adjtime(const struct timeval *, struct timeval *); 117 int getitimer(int, struct itimerval *); 118 int setitimer(int, const struct itimerval *, struct itimerval *); 119 int settimeofday(const struct timeval *, const struct timezone *); 120 int utimes(const char *, const struct timeval *); 121 #endif 122 __END_DECLS 123 #endif /* !POSIX */ 124 #endif /* !KERNEL */ 125 126 127 #endif /* !_SYS_TIME_H_ */ /* [<][>][^][v][top][bottom][index][help] */ | |||
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