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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [sys/] [time.h] - Rev 859
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/* 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
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