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1c79356b 1/*
2d21ac55 2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
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A
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
2d21ac55
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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27 */
28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1982, 1986, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Berkeley and its contributors.
45 * 4. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)time.h 8.2 (Berkeley) 7/10/94
62 */
63
64#ifndef _SYS_TIME_H_
65#define _SYS_TIME_H_
66
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67#include <sys/cdefs.h>
68#include <sys/_types.h>
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69#ifdef KERNEL
70#include <machine/types.h> /* user_time_t */
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71#else /* !KERNEL */
72#include <Availability.h>
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73#endif /* KERNEL */
74
75/*
76 * [XSI] The fd_set type shall be defined as described in <sys/select.h>.
77 * The timespec structure shall be defined as described in <time.h>
78 */
79#define __need_fd_set
80#define __need_struct_timespec
81#define __need_struct_timeval
82#ifdef KERNEL
83#define __need_struct_user_timespec
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84#define __need_struct_user32_timespec
85#define __need_struct_user64_timespec
86#define __need_struct_user_timeval
87#define __need_struct_user32_timeval
88#define __need_struct_user64_timeval
89#define __need_struct_user32_itimerval
90#define __need_struct_user64_itimerval
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91#endif /* KERNEL */
92#include <sys/_structs.h>
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93
94#ifndef _TIME_T
95#define _TIME_T
96typedef __darwin_time_t time_t;
97#endif
98
99#ifndef _SUSECONDS_T
100#define _SUSECONDS_T
101typedef __darwin_suseconds_t suseconds_t;
102#endif
103
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104/*
105 * Structure used as a parameter by getitimer(2) and setitimer(2) system
106 * calls.
107 */
108struct itimerval {
109 struct timeval it_interval; /* timer interval */
110 struct timeval it_value; /* current value */
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111};
112
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113/*
114 * Names of the interval timers, and structure
115 * defining a timer setting.
116 */
117#define ITIMER_REAL 0
118#define ITIMER_VIRTUAL 1
119#define ITIMER_PROF 2
120
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121/*
122 * Select uses bit masks of file descriptors in longs. These macros
123 * manipulate such bit fields (the filesystem macros use chars). The
124 * extra protection here is to permit application redefinition above
125 * the default size.
126 */
127#ifndef FD_SETSIZE
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128#define FD_SETSIZE __DARWIN_FD_SETSIZE
129#endif /* FD_SETSIZE */
130#ifndef FD_SET
131#define FD_SET(n, p) __DARWIN_FD_SET(n, p)
132#endif /* FD_SET */
133#ifndef FD_CLR
134#define FD_CLR(n,p) __DARWIN_FD_CLR(n, p)
135#endif /* FD_CLR */
136#ifndef FD_ISSET
137#define FD_ISSET(n, p) __DARWIN_FD_ISSET(n, p)
138#endif /* FD_ISSET */
139#ifndef FD_ZERO
140#define FD_ZERO(p) __DARWIN_FD_ZERO(p)
141#endif /* FD_ZERO */
142
143#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
144
145#ifndef FD_COPY
146#define FD_COPY(f, t) __DARWIN_FD_COPY(f, t)
147#endif /* FD_COPY */
0c530ab8 148
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149#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
150 (ts)->tv_sec = (tv)->tv_sec; \
151 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
152}
153#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
154 (tv)->tv_sec = (ts)->tv_sec; \
155 (tv)->tv_usec = (ts)->tv_nsec / 1000; \
156}
157
158struct timezone {
159 int tz_minuteswest; /* minutes west of Greenwich */
160 int tz_dsttime; /* type of dst correction */
161};
162#define DST_NONE 0 /* not on dst */
163#define DST_USA 1 /* USA style dst */
164#define DST_AUST 2 /* Australian style dst */
165#define DST_WET 3 /* Western European dst */
166#define DST_MET 4 /* Middle European dst */
167#define DST_EET 5 /* Eastern European dst */
168#define DST_CAN 6 /* Canada */
169
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170/* Operations on timevals. */
171#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
172#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
173#define timercmp(tvp, uvp, cmp) \
174 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
175 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
176 ((tvp)->tv_sec cmp (uvp)->tv_sec))
177#define timeradd(tvp, uvp, vvp) \
178 do { \
179 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
180 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
181 if ((vvp)->tv_usec >= 1000000) { \
182 (vvp)->tv_sec++; \
183 (vvp)->tv_usec -= 1000000; \
184 } \
185 } while (0)
186#define timersub(tvp, uvp, vvp) \
187 do { \
188 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
189 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
190 if ((vvp)->tv_usec < 0) { \
191 (vvp)->tv_sec--; \
192 (vvp)->tv_usec += 1000000; \
193 } \
194 } while (0)
195
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196#define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */
197
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198/*
199 * Getkerninfo clock information structure
200 */
201struct clockinfo {
202 int hz; /* clock frequency */
203 int tick; /* micro-seconds per hz tick */
204 int tickadj; /* clock skew rate for adjtime() */
205 int stathz; /* statistics clock frequency */
206 int profhz; /* profiling clock frequency */
207};
2d21ac55 208#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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209
210#ifdef KERNEL
91447636 211
2d21ac55 212#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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213__BEGIN_DECLS
214void microtime(struct timeval *tv);
215void microuptime(struct timeval *tv);
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216#define getmicrotime(a) microtime(a)
217#define getmicrouptime(a) microuptime(a)
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218void nanotime(struct timespec *ts);
219void nanouptime(struct timespec *ts);
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220#define getnanotime(a) nanotime(a)
221#define getnanouptime(a) nanouptime(a)
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222void timevaladd(struct timeval *t1, struct timeval *t2);
223void timevalsub(struct timeval *t1, struct timeval *t2);
224void timevalfix(struct timeval *t1);
225#ifdef BSD_KERNEL_PRIVATE
226time_t boottime_sec(void);
2d21ac55 227void inittodr(time_t base) __attribute__((section("__TEXT, initcode")));
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228#endif /* BSD_KERNEL_PRIVATE */
229
230__END_DECLS
231
2d21ac55 232#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
9bccf70c 233
1c79356b 234#else /* !KERNEL */
91447636 235
2d21ac55 236#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b 237#include <time.h>
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238#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
239
240__BEGIN_DECLS
1c79356b 241
2d21ac55 242#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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243int adjtime(const struct timeval *, struct timeval *);
244int futimes(int, const struct timeval *);
6d2010ae 245int lutimes(const char *, const struct timeval *) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
91447636 246int settimeofday(const struct timeval *, const struct timezone *);
2d21ac55 247#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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248
249int getitimer(int, struct itimerval *);
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250int gettimeofday(struct timeval * __restrict, void * __restrict);
251
252#include <sys/_select.h> /* select() prototype */
253
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254int setitimer(int, const struct itimerval * __restrict,
255 struct itimerval * __restrict);
256int utimes(const char *, const struct timeval *);
1c79356b 257
1c79356b 258__END_DECLS
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259
260#endif /* !KERNEL */
261
262#endif /* !_SYS_TIME_H_ */