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Annotation of prex-old/include/sys/time.h, Revision 1.1.1.1.2.1

1.1       nbrk        1: /*
                      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: };
1.1.1.1.2.1! nbrk       67:
1.1       nbrk       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    adjtime(const struct timeval *, struct timeval *);
                    115: int    getitimer(int, struct itimerval *);
                    116: int    gettimeofday(struct timeval *, struct timezone *);
                    117: int    setitimer(int, const struct itimerval *, struct itimerval *);
                    118: int    settimeofday(const struct timeval *, const struct timezone *);
                    119: int    utimes(const char *, const struct timeval *);
                    120: __END_DECLS
                    121: #endif /* !POSIX */
                    122: #endif /* !KERNEL */
                    123:
                    124:
                    125: #endif /* !_SYS_TIME_H_ */