273 lines
10 KiB
C
273 lines
10 KiB
C
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/*
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* Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.2 (Berkeley) 7/10/94
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*/
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#ifndef _SYS_TIME_H_
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#define _SYS_TIME_H_
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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#ifdef KERNEL
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#include <machine/types.h> /* user_time_t */
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#include <stdint.h> /* uint64_t */
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#else /* !KERNEL */
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#include <Availability.h>
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#endif /* KERNEL */
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#ifndef DRIVERKIT
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/*
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* [XSI] The fd_set type shall be defined as described in <sys/select.h>.
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* The timespec structure shall be defined as described in <time.h>
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*/
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#include <sys/_types/_fd_def.h>
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#include <sys/_types/_timespec.h>
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#include <sys/_types/_timeval.h>
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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#include <sys/_types/_timeval64.h>
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#endif /* !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) */
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#ifdef KERNEL
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#include <sys/_types/_user_timespec.h>
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#include <sys/_types/_user32_timespec.h>
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#include <sys/_types/_user64_timespec.h>
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#include <sys/_types/_user_timeval.h>
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#include <sys/_types/_user32_timeval.h>
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#include <sys/_types/_user64_timeval.h>
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#include <sys/_types/_user32_itimerval.h>
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#include <sys/_types/_user64_itimerval.h>
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#endif /* KERNEL */
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#include <sys/_types/_time_t.h>
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#include <sys/_types/_suseconds_t.h>
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/*
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* Structure used as a parameter by getitimer(2) and setitimer(2) system
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* calls.
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*/
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struct itimerval {
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struct timeval it_interval; /* timer interval */
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struct timeval it_value; /* current value */
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};
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/*
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* Names of the interval timers, and structure
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* defining a timer setting.
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*/
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#define ITIMER_REAL 0
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#define ITIMER_VIRTUAL 1
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#define ITIMER_PROF 2
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/*
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* Select uses bit masks of file descriptors in longs. These macros
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* manipulate such bit fields (the filesystem macros use chars). The
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* extra protection here is to permit application redefinition above
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* the default size.
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*/
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#include <sys/_types/_fd_setsize.h>
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#include <sys/_types/_fd_set.h>
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#include <sys/_types/_fd_clr.h>
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#include <sys/_types/_fd_isset.h>
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#include <sys/_types/_fd_zero.h>
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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#include <sys/_types/_fd_copy.h>
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#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
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(ts)->tv_sec = (tv)->tv_sec; \
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(ts)->tv_nsec = (tv)->tv_usec * 1000; \
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}
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#ifdef KERNEL
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#define TIMEVAL64_TO_TIMESPEC(tv, ts){ \
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(ts)->tv_sec = (time_t)((tv)->tv_sec); \
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(ts)->tv_nsec = (tv)->tv_usec * 1000; \
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}
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#endif
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#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
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(tv)->tv_sec = (ts)->tv_sec; \
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(tv)->tv_usec = (__darwin_suseconds_t)((ts)->tv_nsec / 1000); \
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}
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struct timezone {
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int tz_minuteswest; /* minutes west of Greenwich */
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int tz_dsttime; /* type of dst correction */
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};
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#define DST_NONE 0 /* not on dst */
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#define DST_USA 1 /* USA style dst */
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#define DST_AUST 2 /* Australian style dst */
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#define DST_WET 3 /* Western European dst */
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#define DST_MET 4 /* Middle European dst */
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#define DST_EET 5 /* Eastern European dst */
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#define DST_CAN 6 /* Canada */
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/* Operations on timevals. */
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#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
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#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
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#define timercmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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#define timeradd(tvp, uvp, vvp) \
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do { \
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(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
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if ((vvp)->tv_usec >= 1000000) { \
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(vvp)->tv_sec++; \
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(vvp)->tv_usec -= 1000000; \
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} \
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} while (0)
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#define timersub(tvp, uvp, vvp) \
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do { \
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(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
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if ((vvp)->tv_usec < 0) { \
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(vvp)->tv_sec--; \
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(vvp)->tv_usec += 1000000; \
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} \
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} while (0)
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#define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */
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/*
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* Getkerninfo clock information structure
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*/
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struct clockinfo {
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int hz; /* clock frequency */
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int tick; /* micro-seconds per hz tick */
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int tickadj; /* clock skew rate for adjtime() */
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int stathz; /* statistics clock frequency */
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int profhz; /* profiling clock frequency */
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};
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#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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#ifdef XNU_KERNEL_PRIVATE
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#define SETTIME_ENTITLEMENT "com.apple.private.settime"
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#endif
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#ifdef KERNEL
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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__BEGIN_DECLS
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void microtime(struct timeval *tv);
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void microtime_with_abstime(struct timeval *tv, uint64_t *abstime);
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void microuptime(struct timeval *tv);
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#define getmicrotime(a) microtime(a)
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#define getmicrouptime(a) microuptime(a)
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void nanotime(struct timespec *ts);
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void nanouptime(struct timespec *ts);
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#define getnanotime(a) nanotime(a)
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#define getnanouptime(a) nanouptime(a)
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void timevaladd(struct timeval *t1, struct timeval *t2);
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void timevalsub(struct timeval *t1, struct timeval *t2);
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void timevalfix(struct timeval *t1);
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#ifdef BSD_KERNEL_PRIVATE
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time_t boottime_sec(void);
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void boottime_timeval(struct timeval *tv);
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void inittodr(time_t base);
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int ratecheck(struct timeval *lasttime, const struct timeval *mininterval);
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int ppsratecheck(struct timeval *lasttime, int *curpps, int maxpps);
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#endif /* BSD_KERNEL_PRIVATE */
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__END_DECLS
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#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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#else /* !KERNEL */
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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#include <time.h>
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#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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__BEGIN_DECLS
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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int adjtime(const struct timeval *, struct timeval *);
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int futimes(int, const struct timeval *);
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int lutimes(const char *, const struct timeval *) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
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int settimeofday(const struct timeval *, const struct timezone *);
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#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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int getitimer(int, struct itimerval *);
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int gettimeofday(struct timeval * __restrict, void * __restrict);
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__END_DECLS
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#include <sys/_select.h> /* select() prototype */
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__BEGIN_DECLS
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int setitimer(int, const struct itimerval * __restrict,
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struct itimerval * __restrict);
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int utimes(const char *, const struct timeval *);
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__END_DECLS
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#endif /* !KERNEL */
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#else /* !DRIVERKIT */
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#include <sys/_types/_time_t.h>
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#endif /* DRIVERKIT */
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#endif /* !_SYS_TIME_H_ */
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