| /* libc/sys/linux/sys/time.h - Time handling */ |
| |
| /* Written 2000 by Werner Almesberger */ |
| |
| /* |
| * 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 |
| * $FreeBSD: src/sys/sys/time.h,v 1.56 2002/05/05 04:33:09 bde Exp $ |
| */ |
| |
| #ifndef _SYS_TIME_H |
| #define _SYS_TIME_H |
| |
| #include <sys/types.h> |
| #include <sys/linux_time.h> |
| |
| /* Macros for converting between `struct timeval' and `struct timespec'. */ |
| # 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; \ |
| } |
| |
| /* Convenience macros for operations on timevals. |
| NOTE: `timercmp' does not work for >= or <=. */ |
| # define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) |
| # define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0) |
| # define timercmp(a, b, CMP) \ |
| (((a)->tv_sec == (b)->tv_sec) ? \ |
| ((a)->tv_usec CMP (b)->tv_usec) : \ |
| ((a)->tv_sec CMP (b)->tv_sec)) |
| # define timeradd(a, b, result) \ |
| do { \ |
| (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \ |
| (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \ |
| if ((result)->tv_usec >= 1000000) \ |
| { \ |
| ++(result)->tv_sec; \ |
| (result)->tv_usec -= 1000000; \ |
| } \ |
| } while (0) |
| # define timersub(a, b, result) \ |
| do { \ |
| (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ |
| (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ |
| if ((result)->tv_usec < 0) { \ |
| --(result)->tv_sec; \ |
| (result)->tv_usec += 1000000; \ |
| } \ |
| } while (0) |
| /* --- redundant stuff below --- */ |
| |
| #include <_ansi.h> |
| |
| int _EXFUN(gettimeofday, (struct timeval *__p, struct timezone *__z)); |
| int _EXFUN(settimeofday, (const struct timeval *, const struct timezone *)); |
| int _EXFUN(utimes, (const char *__path, const struct timeval __tvp[2])); |
| int _EXFUN(getitimer, (int __which, struct itimerval *__value)); |
| int _EXFUN(setitimer, (int __which, const struct itimerval *__value, |
| struct itimerval *__ovalue)); |
| #endif |