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Annotation of 43BSD/sys/h/time.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)time.h      7.1 (Berkeley) 6/4/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Structure returned by gettimeofday(2) system call,
        !            11:  * and used in other calls.
        !            12:  */
        !            13: struct timeval {
        !            14:        long    tv_sec;         /* seconds */
        !            15:        long    tv_usec;        /* and microseconds */
        !            16: };
        !            17: 
        !            18: struct timezone {
        !            19:        int     tz_minuteswest; /* minutes west of Greenwich */
        !            20:        int     tz_dsttime;     /* type of dst correction */
        !            21: };
        !            22: #define        DST_NONE        0       /* not on dst */
        !            23: #define        DST_USA         1       /* USA style dst */
        !            24: #define        DST_AUST        2       /* Australian style dst */
        !            25: #define        DST_WET         3       /* Western European dst */
        !            26: #define        DST_MET         4       /* Middle European dst */
        !            27: #define        DST_EET         5       /* Eastern European dst */
        !            28: #define        DST_CAN         6       /* Canada */
        !            29: 
        !            30: /*
        !            31:  * Operations on timevals.
        !            32:  *
        !            33:  * NB: timercmp does not work for >= or <=.
        !            34:  */
        !            35: #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
        !            36: #define        timercmp(tvp, uvp, cmp) \
        !            37:        ((tvp)->tv_sec cmp (uvp)->tv_sec || \
        !            38:         (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
        !            39: #define        timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
        !            40: 
        !            41: /*
        !            42:  * Names of the interval timers, and structure
        !            43:  * defining a timer setting.
        !            44:  */
        !            45: #define        ITIMER_REAL     0
        !            46: #define        ITIMER_VIRTUAL  1
        !            47: #define        ITIMER_PROF     2
        !            48: 
        !            49: struct itimerval {
        !            50:        struct  timeval it_interval;    /* timer interval */
        !            51:        struct  timeval it_value;       /* current value */
        !            52: };
        !            53: 
        !            54: #ifndef KERNEL
        !            55: #include <time.h>
        !            56: #endif

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