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Annotation of Net2/sys/time.h, revision 1.1.1.2

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:  *
1.1.1.2 ! root       33:  *     from: @(#)time.h        7.6 (Berkeley) 2/22/91
        !            34:  *     time.h,v 1.3 1993/06/27 05:59:09 andrew Exp
1.1       root       35:  */
                     36: 
                     37: #ifndef _SYS_TIME_H_
                     38: #define _SYS_TIME_H_
                     39: 
                     40: /*
                     41:  * Structure returned by gettimeofday(2) system call,
                     42:  * and used in other calls.
                     43:  */
                     44: struct timeval {
                     45:        long    tv_sec;         /* seconds */
                     46:        long    tv_usec;        /* and microseconds */
                     47: };
                     48: 
                     49: struct timezone {
                     50:        int     tz_minuteswest; /* minutes west of Greenwich */
                     51:        int     tz_dsttime;     /* type of dst correction */
                     52: };
                     53: #define        DST_NONE        0       /* not on dst */
                     54: #define        DST_USA         1       /* USA style dst */
                     55: #define        DST_AUST        2       /* Australian style dst */
                     56: #define        DST_WET         3       /* Western European dst */
                     57: #define        DST_MET         4       /* Middle European dst */
                     58: #define        DST_EET         5       /* Eastern European dst */
                     59: #define        DST_CAN         6       /* Canada */
                     60: 
                     61: /*
                     62:  * Operations on timevals.
                     63:  *
                     64:  * NB: timercmp does not work for >= or <=.
                     65:  */
                     66: #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
                     67: #define        timercmp(tvp, uvp, cmp) \
                     68:        ((tvp)->tv_sec cmp (uvp)->tv_sec || \
                     69:         (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
                     70: #define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
                     71: 
                     72: /*
                     73:  * Names of the interval timers, and structure
                     74:  * defining a timer setting.
                     75:  */
                     76: #define        ITIMER_REAL     0
                     77: #define        ITIMER_VIRTUAL  1
                     78: #define        ITIMER_PROF     2
                     79: 
                     80: struct itimerval {
                     81:        struct  timeval it_interval;    /* timer interval */
                     82:        struct  timeval it_value;       /* current value */
                     83: };
                     84: 
1.1.1.2 ! root       85: #ifdef KERNEL
        !            86: int    itimerfix __P((struct timeval *tv));
        !            87: int    itimerdecr __P((struct itimerval *itp, int usec));
        !            88: void   timevaladd __P((struct timeval *t1, struct timeval *t2));
        !            89: void   timevalsub __P((struct timeval *t1, struct timeval *t2));
        !            90: void   timevalfix __P((struct timeval *t1));
        !            91: #else
1.1       root       92: #include <time.h>
                     93: 
                     94: #ifndef _POSIX_SOURCE
                     95: #include <sys/cdefs.h>
                     96: 
                     97: __BEGIN_DECLS
                     98: int    adjtime __P((const struct timeval *, struct timeval *));
                     99: int    getitimer __P((int, struct itimerval *));
                    100: int    gettimeofday __P((struct timeval *, struct timezone *));
                    101: int    setitimer __P((int, const struct itimerval *, struct itimerval *));
                    102: int    settimeofday __P((const struct timeval *, const struct timezone *));
                    103: int    utimes __P((const char *, const struct timeval *));
                    104: __END_DECLS
                    105: #endif /* !POSIX */
                    106: 
                    107: #endif /* !KERNEL */
                    108: 
                    109: #endif /* !_SYS_TIME_H_ */

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