/*
 * Copyright (c) 1982, 1986, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)time.h      8.5 (Berkeley) 5/4/95
 */

#ifndef _SYS_TIME_H_
#define _SYS_TIME_H_

#ifdef TCPV40HDRS
#include <stack16\sys\time.h>
#else
#include <sys/types.h>

/*
 * Structure returned by gettimeofday(2) system call,
 * and used in other calls.
 */
struct timeval {
        long    tv_sec;         /* seconds */
        long    tv_usec;        /* and microseconds */
};

/*
 * Structure defined by POSIX.4 to be like a timeval.
 */
#pragma pack(4)
struct timespec {
        time_t  ts_sec;         /* seconds */
        long    ts_nsec;        /* and nanoseconds */
};
#pragma pack()

#define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
        (ts)->ts_sec = (tv)->tv_sec;                                    \
        (ts)->ts_nsec = (tv)->tv_usec * 1000;                           \
}
#define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
        (tv)->tv_sec = (ts)->ts_sec;                                    \
        (tv)->tv_usec = (ts)->ts_nsec / 1000;                           \
}

struct timezone {
        int     tz_minuteswest; /* minutes west of Greenwich */
        int     tz_dsttime;     /* type of dst correction */
};
#define DST_NONE        0       /* not on dst */
#define DST_USA         1       /* USA style dst */
#define DST_AUST        2       /* Australian style dst */
#define DST_WET         3       /* Western European dst */
#define DST_MET         4       /* Middle European dst */
#define DST_EET         5       /* Eastern European dst */
#define DST_CAN         6       /* Canada */

/* Operations on timevals. */
#define timerclear(tvp)         (tvp)->tv_sec = (tvp)->tv_usec = 0
#define timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
#ifndef timercmp
#define timercmp(tvp, uvp, cmp)                                         \
        (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
            ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
            ((tvp)->tv_sec cmp (uvp)->tv_sec))
#endif

/*
 * Names of the interval timers, and structure
 * defining a timer setting.
 */
#define ITIMER_REAL     0
#define ITIMER_VIRTUAL  1
#define ITIMER_PROF     2

#pragma pack(4)
struct  itimerval {
        struct  timeval it_interval;    /* timer interval */
        struct  timeval it_value;       /* current value */
};
#pragma pack()

/*
 * Getkerninfo clock information structure
 */
struct clockinfo {
        int     hz;             /* clock frequency */
        int     tick;           /* micro-seconds per hz tick */
        int     stathz;         /* statistics clock frequency */
        int     profhz;         /* profiling clock frequency */
};

#ifdef KERNEL
#else /* !KERNEL */
#include <time.h>

#ifndef _POSIX_SOURCE
#include <sys/cdefs.h>

__BEGIN_DECLS
int _System adjtime __TCPPROTO((const struct timeval *, struct timeval *));
int _System getitimer __TCPPROTO((int, struct itimerval *));
int _System gettimeofday __TCPPROTO((struct timeval *, struct timezone *));
int _System setitimer __TCPPROTO((int, const struct itimerval *, struct itimerval *));
int _System settimeofday __TCPPROTO((const struct timeval *, const struct timezone *));
int _System utimes __TCPPROTO((const char *, const struct timeval *));
__END_DECLS
#endif /* !POSIX */

#endif /* !KERNEL */

#endif /* TCPV40HDRS */
#endif /* !_SYS_TIME_H_ */
