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Annotation of linux/include/sys/time.h, revision 1.1

1.1     ! root        1: #ifndef _SYS_TIME_H
        !             2: #define _SYS_TIME_H
        !             3: 
        !             4: /* gettimofday returns this */
        !             5: struct timeval {
        !             6:        long    tv_sec;         /* seconds */
        !             7:        long    tv_usec;        /* microseconds */
        !             8: };
        !             9: 
        !            10: struct timezone {
        !            11:        int     tz_minuteswest; /* minutes west of Greenwich */
        !            12:        int     tz_dsttime;     /* type of dst correction */
        !            13: };
        !            14: 
        !            15: #define        DST_NONE        0       /* not on dst */
        !            16: #define        DST_USA         1       /* USA style dst */
        !            17: #define        DST_AUST        2       /* Australian style dst */
        !            18: #define        DST_WET         3       /* Western European dst */
        !            19: #define        DST_MET         4       /* Middle European dst */
        !            20: #define        DST_EET         5       /* Eastern European dst */
        !            21: #define        DST_CAN         6       /* Canada */
        !            22: #define        DST_GB          7       /* Great Britain and Eire */
        !            23: #define        DST_RUM         8       /* Rumania */
        !            24: #define        DST_TUR         9       /* Turkey */
        !            25: #define        DST_AUSTALT     10      /* Australian style with shift in 1986 */
        !            26: 
        !            27: #define FD_SET(fd,fdsetp)      (*(fdsetp) |= (1 << (fd)))
        !            28: #define FD_CLR(fd,fdsetp)      (*(fdsetp) &= ~(1 << (fd)))
        !            29: #define FD_ISSET(fd,fdsetp)    ((*(fdsetp) >> fd) & 1)
        !            30: #define FD_ZERO(fdsetp)                (*(fdsetp) = 0)
        !            31: 
        !            32: /*
        !            33:  * Operations on timevals.
        !            34:  *
        !            35:  * NB: timercmp does not work for >= or <=.
        !            36:  */
        !            37: #define        timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
        !            38: #define        timercmp(tvp, uvp, cmp) \
        !            39:        ((tvp)->tv_sec cmp (uvp)->tv_sec || \
        !            40:         (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
        !            41: #define        timerclear(tvp)         ((tvp)->tv_sec = (tvp)->tv_usec = 0)
        !            42: 
        !            43: /*
        !            44:  * Names of the interval timers, and structure
        !            45:  * defining a timer setting.
        !            46:  */
        !            47: #define        ITIMER_REAL     0
        !            48: #define        ITIMER_VIRTUAL  1
        !            49: #define        ITIMER_PROF     2
        !            50: 
        !            51: struct itimerval {
        !            52:        struct  timeval it_interval;    /* timer interval */
        !            53:        struct  timeval it_value;       /* current value */
        !            54: };
        !            55: 
        !            56: #include <time.h>
        !            57: #include <sys/types.h>
        !            58: 
        !            59: int gettimeofday(struct timeval * tp, struct timezone * tz);
        !            60: int select(int width, fd_set * readfds, fd_set * writefds,
        !            61:        fd_set * exceptfds, struct timeval * timeout);
        !            62: 
        !            63: #endif /*_SYS_TIME_H*/

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