/* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* * 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/appleapiopts.h> #include <sys/types.h> /* * Structure returned by gettimeofday(2) system call, * and used in other calls. */ struct timeval { int32_t tv_sec; /* seconds */ int32_t tv_usec; /* and microseconds */ }; /* * Structure defined by POSIX.4 to be like a timeval. */ #ifndef _TIMESPEC_DECLARED #define _TIMESPEC_DECLARED struct timespec { time_t tv_sec; /* seconds */ int32_t 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 */ #define time_second time.tv_sec /* 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) /* * 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 */ }; #include <sys/cdefs.h> #ifdef KERNEL void microtime __P((struct timeval *tv)); void microuptime __P((struct timeval *tv)); #define getmicrotime(a) microtime(a) #define getmicrouptime(a) microuptime(a) void nanotime __P((struct timespec *ts)); void nanouptime __P((struct timespec *ts)); #define getnanotime(a) nanotime(a) #define getnanouptime(a) nanouptime(a) #ifdef __APPLE_API_PRIVATE int itimerfix __P((struct timeval *tv)); int itimerdecr __P((struct itimerval *itp, int usec)); #endif /* __APPLE_API_PRIVATE */ #else /* !KERNEL */ #include <time.h> #ifndef _POSIX_SOURCE #include <sys/cdefs.h> __BEGIN_DECLS int adjtime __P((const struct timeval *, struct timeval *)); int futimes __P((int, const struct timeval *)); int getitimer __P((int, struct itimerval *)); int gettimeofday __P((struct timeval *, struct timezone *)); 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_ */