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Annotation of Net2/sys/time.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !             3:  * 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. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)time.h      7.6 (Berkeley) 2/22/91
        !            34:  */
        !            35: 
        !            36: #ifndef _SYS_TIME_H_
        !            37: #define _SYS_TIME_H_
        !            38: 
        !            39: /*
        !            40:  * Structure returned by gettimeofday(2) system call,
        !            41:  * and used in other calls.
        !            42:  */
        !            43: struct timeval {
        !            44:        long    tv_sec;         /* seconds */
        !            45:        long    tv_usec;        /* and microseconds */
        !            46: };
        !            47: 
        !            48: struct timezone {
        !            49:        int     tz_minuteswest; /* minutes west of Greenwich */
        !            50:        int     tz_dsttime;     /* type of dst correction */
        !            51: };
        !            52: #define        DST_NONE        0       /* not on dst */
        !            53: #define        DST_USA         1       /* USA style dst */
        !            54: #define        DST_AUST        2       /* Australian style dst */
        !            55: #define        DST_WET         3       /* Western European dst */
        !            56: #define        DST_MET         4       /* Middle European dst */
        !            57: #define        DST_EET         5       /* Eastern European dst */
        !            58: #define        DST_CAN         6       /* Canada */
        !            59: 
        !            60: /*
        !            61:  * Operations on timevals.
        !            62:  *
        !            63:  * NB: timercmp does not work for >= or <=.
        !            64:  */
        !            65: #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
        !            66: #define        timercmp(tvp, uvp, cmp) \
        !            67:        ((tvp)->tv_sec cmp (uvp)->tv_sec || \
        !            68:         (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
        !            69: #define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
        !            70: 
        !            71: /*
        !            72:  * Names of the interval timers, and structure
        !            73:  * defining a timer setting.
        !            74:  */
        !            75: #define        ITIMER_REAL     0
        !            76: #define        ITIMER_VIRTUAL  1
        !            77: #define        ITIMER_PROF     2
        !            78: 
        !            79: struct itimerval {
        !            80:        struct  timeval it_interval;    /* timer interval */
        !            81:        struct  timeval it_value;       /* current value */
        !            82: };
        !            83: 
        !            84: #ifndef KERNEL
        !            85: #include <time.h>
        !            86: 
        !            87: #ifndef _POSIX_SOURCE
        !            88: #include <sys/cdefs.h>
        !            89: 
        !            90: __BEGIN_DECLS
        !            91: int    adjtime __P((const struct timeval *, struct timeval *));
        !            92: int    getitimer __P((int, struct itimerval *));
        !            93: int    gettimeofday __P((struct timeval *, struct timezone *));
        !            94: int    setitimer __P((int, const struct itimerval *, struct itimerval *));
        !            95: int    settimeofday __P((const struct timeval *, const struct timezone *));
        !            96: int    utimes __P((const char *, const struct timeval *));
        !            97: __END_DECLS
        !            98: #endif /* !POSIX */
        !            99: 
        !           100: #endif /* !KERNEL */
        !           101: 
        !           102: #endif /* !_SYS_TIME_H_ */

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