Subversion Repositories or1k

//==========================================================================

//

//      include/sys/time.h

//

//      

//

//==========================================================================

//####BSDCOPYRIGHTBEGIN####

//

// -------------------------------------------

//

// Portions of this software may have been derived from OpenBSD or other sources,

// and are covered by the appropriate copyright disclaimers included herein.

//

// -------------------------------------------

//

//####BSDCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-01-10

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

/*      $OpenBSD: time.h,v 1.9 1999/12/06 19:36:42 aaron Exp $  */

/*      $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $        */

/*

 * 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      8.2 (Berkeley) 7/10/94

 */

#ifndef _SYS_TIME_H_

#define _SYS_TIME_H_

#include <sys/types.h>

#include <time.h>

#if 0 //ndef __time_t_defined

typedef int time_t;

# define __time_t_defined

#endif

#if 0

/*

 * Structure returned by gettimeofday(2) system call,

 * and used in other calls.

 */

struct timeval {

        long    tv_sec;         /* seconds */

        long    tv_usec;        /* and microseconds */

};

#endif

#if 0

/*

 * Structure defined by POSIX.1b to be like a timeval.

 */

struct timespec {

        time_t  tv_sec;         /* seconds */

        long    tv_nsec;        /* and nanoseconds */

};

#endif

#define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \

        (ts)->tv_sec = (tv)->tv_sec;                                    \

        (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \

}

#define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \

        (tv)->tv_sec = (ts)->tv_sec;                                    \

        (tv)->tv_usec = (ts)->tv_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)

#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))

#define timeradd(tvp, uvp, vvp)                                         \

        do {                                                            \

                (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \

                (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \

                if ((vvp)->tv_usec >= 1000000) {                        \

                        (vvp)->tv_sec++;                                \

                        (vvp)->tv_usec -= 1000000;                      \

                }                                                       \

        } while (0)

#define timersub(tvp, uvp, vvp)                                         \

        do {                                                            \

                (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \

                (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \

                if ((vvp)->tv_usec < 0) {                                \

                        (vvp)->tv_sec--;                                \

                        (vvp)->tv_usec += 1000000;                      \

                }                                                       \

        } while (0)

/* Operations on timespecs. */

#define timespecclear(tsp)              (tsp)->tv_sec = (tsp)->tv_nsec = 0

#define timespecisset(tsp)              ((tsp)->tv_sec || (tsp)->tv_nsec)

#define timespeccmp(tsp, usp, cmp)                                      \

        (((tsp)->tv_sec == (usp)->tv_sec) ?                             \

            ((tsp)->tv_nsec cmp (usp)->tv_nsec) :                       \

            ((tsp)->tv_sec cmp (usp)->tv_sec))

#define timespecadd(tsp, usp, vsp)                                      \

        do {                                                            \

                (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec;          \

                (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec;       \

                if ((vsp)->tv_nsec >= 1000000000L) {                    \

                        (vsp)->tv_sec++;                                \

                        (vsp)->tv_nsec -= 1000000000L;                  \

                }                                                       \

        } while (0)

#define timespecsub(tsp, usp, vsp)                                      \

        do {                                                            \

                (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;          \

                (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;       \

                if ((vsp)->tv_nsec < 0) {                                \

                        (vsp)->tv_sec--;                                \

                        (vsp)->tv_nsec += 1000000000L;                  \

                }                                                       \

        } while (0)

/*

 * Names of the interval timers, and structure

 * defining a timer setting.

 */

#define ITIMER_REAL     0

#define ITIMER_VIRTUAL  1

#define ITIMER_PROF     2

struct  itimerval {

        struct  timeval it_interval;    /* timer interval */

        struct  timeval it_value;       /* current value */

};

/*

 * Getkerninfo clock information structure

 */

struct clockinfo {

        int     hz;             /* clock frequency */

        int     tick;           /* micro-seconds per hz tick */

        int     tickadj;        /* clock skew rate for adjtime() */

        int     stathz;         /* statistics clock frequency */

        int     profhz;         /* profiling clock frequency */

};

#define CLOCK_REALTIME  0

#define CLOCK_VIRTUAL   1

#define CLOCK_PROF      2

#define TIMER_RELTIME   0x0     /* relative timer */

#ifndef TIMER_ABSTIME

#define TIMER_ABSTIME   0x1     /* absolute timer */

#endif

#if defined(_KERNEL) || defined(_STANDALONE)

int     itimerfix __P((struct timeval *tv));

int     itimerdecr __P((struct itimerval *itp, int usec));

void    microtime __P((struct timeval *tv));

void    settime __P((struct timeval *tv));

#else /* !_KERNEL */

#ifndef __ECOS

#include <time.h>

#endif

#if 0 //ndef _POSIX_SOURCE

#include <sys/cdefs.h>

__BEGIN_DECLS

int     adjtime __P((const struct timeval *, struct timeval *));

int     clock_getres __P((clockid_t, struct timespec *));

int     clock_gettime __P((clockid_t, struct timespec *));

int     clock_settime __P((clockid_t, const struct timespec *));

int     futimes __P((int, const struct timeval *));

int     getitimer __P((int, struct itimerval *));

int     gettimeofday __P((struct timeval *, struct timezone *));

int     nanosleep __P((const struct timespec *, struct timespec *));

int     setitimer __P((int, const struct itimerval *, struct itimerval *));

int     settimeofday __P((const struct timeval *, const struct timezone *));

int     utimes __P((const char *, const struct timeval *));

__END_DECLS

#endif /* !POSIX */

#endif /* !_KERNEL */

#endif /* !_SYS_TIME_H_ */