1 | /* |
2 | * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
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. |
14 | * |
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 |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
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. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
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 | |
67 | #include <sys/cdefs.h> |
68 | #include <sys/_types.h> |
69 | #ifdef KERNEL |
70 | #include <machine/types.h> /* user_time_t */ |
71 | #include <stdint.h> /* uint64_t */ |
72 | #else /* !KERNEL */ |
73 | #include <Availability.h> |
74 | #endif /* KERNEL */ |
75 | |
76 | #ifndef DRIVERKIT |
77 | |
78 | /* |
79 | * [XSI] The fd_set type shall be defined as described in <sys/select.h>. |
80 | * The timespec structure shall be defined as described in <time.h> |
81 | */ |
82 | #include <sys/_types/_fd_def.h> |
83 | #include <sys/_types/_timespec.h> |
84 | #include <sys/_types/_timeval.h> |
85 | |
86 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) |
87 | #include <sys/_types/_timeval64.h> |
88 | #endif /* !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) */ |
89 | |
90 | #ifdef KERNEL |
91 | #include <sys/_types/_user_timespec.h> |
92 | #include <sys/_types/_user32_timespec.h> |
93 | #include <sys/_types/_user64_timespec.h> |
94 | #include <sys/_types/_user_timeval.h> |
95 | #include <sys/_types/_user32_timeval.h> |
96 | #include <sys/_types/_user64_timeval.h> |
97 | #include <sys/_types/_user32_itimerval.h> |
98 | #include <sys/_types/_user64_itimerval.h> |
99 | #endif /* KERNEL */ |
100 | |
101 | #include <sys/_types/_time_t.h> |
102 | #include <sys/_types/_suseconds_t.h> |
103 | |
104 | /* |
105 | * Structure used as a parameter by getitimer(2) and setitimer(2) system |
106 | * calls. |
107 | */ |
108 | struct itimerval { |
109 | struct timeval it_interval; /* timer interval */ |
110 | struct timeval it_value; /* current value */ |
111 | }; |
112 | |
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 | |
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 | #include <sys/_types/_fd_setsize.h> |
128 | #include <sys/_types/_fd_set.h> |
129 | #include <sys/_types/_fd_clr.h> |
130 | #include <sys/_types/_fd_isset.h> |
131 | #include <sys/_types/_fd_zero.h> |
132 | |
133 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) |
134 | |
135 | #include <sys/_types/_fd_copy.h> |
136 | |
137 | #define TIMEVAL_TO_TIMESPEC(tv, ts) { \ |
138 | (ts)->tv_sec = (tv)->tv_sec; \ |
139 | (ts)->tv_nsec = (tv)->tv_usec * 1000; \ |
140 | } |
141 | #ifdef KERNEL |
142 | #define TIMEVAL64_TO_TIMESPEC(tv, ts){ \ |
143 | (ts)->tv_sec = (time_t)((tv)->tv_sec); \ |
144 | (ts)->tv_nsec = (tv)->tv_usec * 1000; \ |
145 | } |
146 | #endif |
147 | #define TIMESPEC_TO_TIMEVAL(tv, ts) { \ |
148 | (tv)->tv_sec = (ts)->tv_sec; \ |
149 | (tv)->tv_usec = (__darwin_suseconds_t)((ts)->tv_nsec / 1000); \ |
150 | } |
151 | |
152 | struct timezone { |
153 | int tz_minuteswest; /* minutes west of Greenwich */ |
154 | int tz_dsttime; /* type of dst correction */ |
155 | }; |
156 | #define DST_NONE 0 /* not on dst */ |
157 | #define DST_USA 1 /* USA style dst */ |
158 | #define DST_AUST 2 /* Australian style dst */ |
159 | #define DST_WET 3 /* Western European dst */ |
160 | #define DST_MET 4 /* Middle European dst */ |
161 | #define DST_EET 5 /* Eastern European dst */ |
162 | #define DST_CAN 6 /* Canada */ |
163 | |
164 | /* Operations on timevals. */ |
165 | #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 |
166 | #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) |
167 | #define timercmp(tvp, uvp, cmp) \ |
168 | (((tvp)->tv_sec == (uvp)->tv_sec) ? \ |
169 | ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ |
170 | ((tvp)->tv_sec cmp (uvp)->tv_sec)) |
171 | #define timeradd(tvp, uvp, vvp) \ |
172 | do { \ |
173 | (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ |
174 | (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ |
175 | if ((vvp)->tv_usec >= 1000000) { \ |
176 | (vvp)->tv_sec++; \ |
177 | (vvp)->tv_usec -= 1000000; \ |
178 | } \ |
179 | } while (0) |
180 | #define timersub(tvp, uvp, vvp) \ |
181 | do { \ |
182 | (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ |
183 | (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ |
184 | if ((vvp)->tv_usec < 0) { \ |
185 | (vvp)->tv_sec--; \ |
186 | (vvp)->tv_usec += 1000000; \ |
187 | } \ |
188 | } while (0) |
189 | |
190 | #define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */ |
191 | |
192 | /* |
193 | * Getkerninfo clock information structure |
194 | */ |
195 | struct clockinfo { |
196 | int hz; /* clock frequency */ |
197 | int tick; /* micro-seconds per hz tick */ |
198 | int tickadj; /* clock skew rate for adjtime() */ |
199 | int stathz; /* statistics clock frequency */ |
200 | int profhz; /* profiling clock frequency */ |
201 | }; |
202 | #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ |
203 | |
204 | #ifdef XNU_KERNEL_PRIVATE |
205 | #define SETTIME_ENTITLEMENT "com.apple.private.settime" |
206 | #endif |
207 | |
208 | #ifdef KERNEL |
209 | |
210 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) |
211 | __BEGIN_DECLS |
212 | void microtime(struct timeval *tv); |
213 | void microtime_with_abstime(struct timeval *tv, uint64_t *abstime); |
214 | void microuptime(struct timeval *tv); |
215 | #define getmicrotime(a) microtime(a) |
216 | #define getmicrouptime(a) microuptime(a) |
217 | void nanotime(struct timespec *ts); |
218 | void nanouptime(struct timespec *ts); |
219 | #define getnanotime(a) nanotime(a) |
220 | #define getnanouptime(a) nanouptime(a) |
221 | void timevaladd(struct timeval *t1, struct timeval *t2); |
222 | void timevalsub(struct timeval *t1, struct timeval *t2); |
223 | void timevalfix(struct timeval *t1); |
224 | #ifdef BSD_KERNEL_PRIVATE |
225 | time_t boottime_sec(void); |
226 | void boottime_timeval(struct timeval *tv); |
227 | void inittodr(time_t base); |
228 | int ratecheck(struct timeval *lasttime, const struct timeval *mininterval); |
229 | int ppsratecheck(struct timeval *lasttime, int *curpps, int maxpps); |
230 | #endif /* BSD_KERNEL_PRIVATE */ |
231 | |
232 | __END_DECLS |
233 | |
234 | #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ |
235 | |
236 | #else /* !KERNEL */ |
237 | |
238 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) |
239 | #include <time.h> |
240 | #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ |
241 | |
242 | __BEGIN_DECLS |
243 | |
244 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) |
245 | int adjtime(const struct timeval *, struct timeval *); |
246 | int futimes(int, const struct timeval *); |
247 | int lutimes(const char *, const struct timeval *) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); |
248 | int settimeofday(const struct timeval *, const struct timezone *); |
249 | #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ |
250 | |
251 | int getitimer(int, struct itimerval *); |
252 | int gettimeofday(struct timeval * __restrict, void * __restrict); |
253 | |
254 | __END_DECLS |
255 | |
256 | #include <sys/_select.h> /* select() prototype */ |
257 | |
258 | __BEGIN_DECLS |
259 | |
260 | int setitimer(int, const struct itimerval * __restrict, |
261 | struct itimerval * __restrict); |
262 | int utimes(const char *, const struct timeval *); |
263 | |
264 | __END_DECLS |
265 | |
266 | #endif /* !KERNEL */ |
267 | |
268 | #else /* !DRIVERKIT */ |
269 | #include <sys/_types/_time_t.h> |
270 | #endif /* DRIVERKIT */ |
271 | |
272 | #endif /* !_SYS_TIME_H_ */ |
273 | |