/* * Copyright (c) 2000-2005 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/cdefs.h> #include <sys/_types.h> #ifndef _TIME_T #define _TIME_T typedef __darwin_time_t time_t; #endif #ifndef _SUSECONDS_T #define _SUSECONDS_T typedef __darwin_suseconds_t suseconds_t; #endif /* * Structure returned by gettimeofday(2) system call, * and used in other calls. */ #ifndef _TIMEVAL #define _TIMEVAL struct timeval { time_t tv_sec; /* seconds */ suseconds_t tv_usec; /* and microseconds */ }; #endif /* _TIMEVAL */ /* * Structure used as a parameter by getitimer(2) and setitimer(2) system * calls. */ struct itimerval { struct timeval it_interval; /* timer interval */ struct timeval it_value; /* current value */ }; /* * Names of the interval timers, and structure * defining a timer setting. */ #define ITIMER_REAL 0 #define ITIMER_VIRTUAL 1 #define ITIMER_PROF 2 /* * [XSI] The fd_set type shall be defined as described in <sys/select.h>. * * Note: We use _FD_SET to protect all select related * types and macros */ #ifndef _FD_SET #define _FD_SET /* * Select uses bit masks of file descriptors in longs. These macros * manipulate such bit fields (the filesystem macros use chars). The * extra protection here is to permit application redefinition above * the default size. */ #ifndef FD_SETSIZE #define FD_SETSIZE 1024 #endif #define __DARWIN_NBBY 8 /* bits in a byte */ #define __DARWIN_NFDBITS (sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */ #define __DARWIN_howmany(x, y) (((x) + ((y) - 1)) / (y)) /* # y's == x bits? */ __BEGIN_DECLS typedef struct fd_set { __int32_t fds_bits[__DARWIN_howmany(FD_SETSIZE, __DARWIN_NFDBITS)]; } fd_set; __END_DECLS #define FD_SET(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] |= (1<<((n) % __DARWIN_NFDBITS))) #define FD_CLR(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] &= ~(1<<((n) % __DARWIN_NFDBITS))) #define FD_ISSET(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] & (1<<((n) % __DARWIN_NFDBITS))) #if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3 /* * Use the built-in bzero function instead of the library version so that * we do not pollute the namespace or introduce prototype warnings. */ #define FD_ZERO(p) __builtin_bzero(p, sizeof(*(p))) #else #define FD_ZERO(p) bzero(p, sizeof(*(p))) #endif #ifndef _POSIX_C_SOURCE #define FD_COPY(f, t) bcopy(f, t, sizeof(*(f))) #endif /* !_POSIX_C_SOURCE */ #endif /* !_FD_SET */ #ifndef _POSIX_C_SOURCE /* * Structure defined by POSIX.4 to be like a timeval. */ #ifndef _TIMESPEC #define _TIMESPEC struct timespec { time_t tv_sec; /* seconds */ long tv_nsec; /* and nanoseconds */ }; #ifdef KERNEL // LP64todo - should this move? #include <machine/types.h> /* user_time_t */ /* LP64 version of struct timespec. time_t is a long and must grow when * we're dealing with a 64-bit process. * WARNING - keep in sync with struct timespec */ struct user_timespec { user_time_t tv_sec; /* seconds */ int32_t tv_nsec __attribute((aligned(8))); /* and nanoseconds */ }; #endif #endif #ifdef KERNEL #ifndef _USERTIMEVAL #define _USERTIMEVAL #include <machine/types.h> /* user_time_t */ /* * LP64 version of struct timeval. time_t is a long and must grow when * we're dealing with a 64-bit process. * WARNING - keep in sync with struct timeval */ struct user_timeval { user_time_t tv_sec; /* seconds */ suseconds_t tv_usec __attribute((aligned(8))); /* and microseconds */ }; struct user_itimerval { struct user_timeval it_interval; /* timer interval */ struct user_timeval it_value; /* current value */ }; #endif #endif // KERNEL #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) #define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */ /* * 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 */ }; #endif /* ! _POSIX_C_SOURCE */ #ifdef KERNEL #ifndef _POSIX_C_SOURCE __BEGIN_DECLS void microtime(struct timeval *tv); void microuptime(struct timeval *tv); #define getmicrotime(a) microtime(a) #define getmicrouptime(a) microuptime(a) void nanotime(struct timespec *ts); void nanouptime(struct timespec *ts); #define getnanotime(a) nanotime(a) #define getnanouptime(a) nanouptime(a) void timevaladd(struct timeval *t1, struct timeval *t2); void timevalsub(struct timeval *t1, struct timeval *t2); void timevalfix(struct timeval *t1); #ifdef BSD_KERNEL_PRIVATE time_t boottime_sec(void); void inittodr(time_t base); int itimerfix(struct timeval *tv); int itimerdecr(struct itimerval *itp, int usec); #endif /* BSD_KERNEL_PRIVATE */ __END_DECLS #endif /* ! _POSIX_C_SOURCE */ #else /* !KERNEL */ __BEGIN_DECLS #ifndef _POSIX_C_SOURCE #include <time.h> int adjtime(const struct timeval *, struct timeval *); int futimes(int, const struct timeval *); int settimeofday(const struct timeval *, const struct timezone *); #endif /* ! _POSIX_C_SOURCE */ int getitimer(int, struct itimerval *); int gettimeofday(struct timeval * __restrict, struct timezone * __restrict); int select(int, fd_set * __restrict, fd_set * __restrict, fd_set * __restrict, struct timeval * __restrict); int setitimer(int, const struct itimerval * __restrict, struct itimerval * __restrict); int utimes(const char *, const struct timeval *); __END_DECLS #endif /* !KERNEL */ #endif /* !_SYS_TIME_H_ */