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 | #include <Availability.h>␊ |
70 | ␊ |
71 | /*␊ |
72 | * [XSI] The fd_set type shall be defined as described in <sys/select.h>.␊ |
73 | * The timespec structure shall be defined as described in <time.h>␊ |
74 | */␊ |
75 | #define __need_fd_set␊ |
76 | #define __need_struct_timespec␊ |
77 | #define __need_struct_timeval␊ |
78 | #include <sys/_structs.h>␊ |
79 | ␊ |
80 | #ifndef␉_TIME_T␊ |
81 | #define␉_TIME_T␊ |
82 | typedef␉__darwin_time_t␉time_t;␊ |
83 | #endif␊ |
84 | ␊ |
85 | #ifndef _SUSECONDS_T␊ |
86 | #define _SUSECONDS_T␊ |
87 | typedef __darwin_suseconds_t␉suseconds_t;␊ |
88 | #endif␊ |
89 | ␊ |
90 | /*␊ |
91 | * Structure used as a parameter by getitimer(2) and setitimer(2) system␊ |
92 | * calls.␊ |
93 | */␊ |
94 | struct␉itimerval {␊ |
95 | ␉struct␉timeval it_interval;␉/* timer interval */␊ |
96 | ␉struct␉timeval it_value;␉/* current value */␊ |
97 | };␊ |
98 | ␊ |
99 | /*␊ |
100 | * Names of the interval timers, and structure␊ |
101 | * defining a timer setting.␊ |
102 | */␊ |
103 | #define␉ITIMER_REAL␉0␊ |
104 | #define␉ITIMER_VIRTUAL␉1␊ |
105 | #define␉ITIMER_PROF␉2␊ |
106 | ␊ |
107 | /*␊ |
108 | * Select uses bit masks of file descriptors in longs. These macros␊ |
109 | * manipulate such bit fields (the filesystem macros use chars). The␊ |
110 | * extra protection here is to permit application redefinition above␊ |
111 | * the default size.␊ |
112 | */␊ |
113 | #ifndef␉FD_SETSIZE␊ |
114 | #define␉FD_SETSIZE␉__DARWIN_FD_SETSIZE␊ |
115 | #endif␉/* FD_SETSIZE */␊ |
116 | #ifndef FD_SET␊ |
117 | #define␉FD_SET(n, p)␉__DARWIN_FD_SET(n, p)␊ |
118 | #endif␉/* FD_SET */␊ |
119 | #ifndef␉FD_CLR␊ |
120 | #define␉FD_CLR(n,p)␉__DARWIN_FD_CLR(n, p)␊ |
121 | #endif␉/* FD_CLR */␊ |
122 | #ifndef FD_ISSET␊ |
123 | #define␉FD_ISSET(n, p)␉__DARWIN_FD_ISSET(n, p)␊ |
124 | #endif␉/* FD_ISSET */␊ |
125 | #ifndef FD_ZERO␊ |
126 | #define␉FD_ZERO(p)␉__DARWIN_FD_ZERO(p)␊ |
127 | #endif␉/* FD_ZERO */␊ |
128 | ␊ |
129 | #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊ |
130 | ␊ |
131 | #ifndef FD_COPY␊ |
132 | #define␉FD_COPY(f, t)␉__DARWIN_FD_COPY(f, t)␊ |
133 | #endif␉/* FD_COPY */␊ |
134 | ␊ |
135 | #define␉TIMEVAL_TO_TIMESPEC(tv, ts) {␉␉␉␉␉\␊ |
136 | ␉(ts)->tv_sec = (tv)->tv_sec;␉␉␉␉␉\␊ |
137 | ␉(ts)->tv_nsec = (tv)->tv_usec * 1000;␉␉␉␉\␊ |
138 | }␊ |
139 | #define␉TIMESPEC_TO_TIMEVAL(tv, ts) {␉␉␉␉␉\␊ |
140 | ␉(tv)->tv_sec = (ts)->tv_sec;␉␉␉␉␉\␊ |
141 | ␉(tv)->tv_usec = (ts)->tv_nsec / 1000;␉␉␉␉\␊ |
142 | }␊ |
143 | ␊ |
144 | struct timezone {␊ |
145 | ␉int␉tz_minuteswest;␉/* minutes west of Greenwich */␊ |
146 | ␉int␉tz_dsttime;␉/* type of dst correction */␊ |
147 | };␊ |
148 | #define␉DST_NONE␉0␉/* not on dst */␊ |
149 | #define␉DST_USA␉␉1␉/* USA style dst */␊ |
150 | #define␉DST_AUST␉2␉/* Australian style dst */␊ |
151 | #define␉DST_WET␉␉3␉/* Western European dst */␊ |
152 | #define␉DST_MET␉␉4␉/* Middle European dst */␊ |
153 | #define␉DST_EET␉␉5␉/* Eastern European dst */␊ |
154 | #define␉DST_CAN␉␉6␉/* Canada */␊ |
155 | ␊ |
156 | /* Operations on timevals. */␊ |
157 | #define␉timerclear(tvp)␉␉(tvp)->tv_sec = (tvp)->tv_usec = 0␊ |
158 | #define␉timerisset(tvp)␉␉((tvp)->tv_sec || (tvp)->tv_usec)␊ |
159 | #define␉timercmp(tvp, uvp, cmp)␉␉␉␉␉␉\␊ |
160 | ␉(((tvp)->tv_sec == (uvp)->tv_sec) ?␉␉␉␉\␊ |
161 | ␉ ((tvp)->tv_usec cmp (uvp)->tv_usec) :␉␉␉\␊ |
162 | ␉ ((tvp)->tv_sec cmp (uvp)->tv_sec))␊ |
163 | #define␉timeradd(tvp, uvp, vvp)␉␉␉␉␉␉\␊ |
164 | ␉do {␉␉␉␉␉␉␉␉\␊ |
165 | ␉␉(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;␉␉\␊ |
166 | ␉␉(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;␉\␊ |
167 | ␉␉if ((vvp)->tv_usec >= 1000000) {␉␉␉\␊ |
168 | ␉␉␉(vvp)->tv_sec++;␉␉␉␉\␊ |
169 | ␉␉␉(vvp)->tv_usec -= 1000000;␉␉␉\␊ |
170 | ␉␉}␉␉␉␉␉␉␉\␊ |
171 | ␉} while (0)␊ |
172 | #define␉timersub(tvp, uvp, vvp)␉␉␉␉␉␉\␊ |
173 | ␉do {␉␉␉␉␉␉␉␉\␊ |
174 | ␉␉(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;␉␉\␊ |
175 | ␉␉(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;␉\␊ |
176 | ␉␉if ((vvp)->tv_usec < 0) {␉␉␉␉\␊ |
177 | ␉␉␉(vvp)->tv_sec--;␉␉␉␉\␊ |
178 | ␉␉␉(vvp)->tv_usec += 1000000;␉␉␉\␊ |
179 | ␉␉}␉␉␉␉␉␉␉\␊ |
180 | ␉} while (0)␊ |
181 | ␊ |
182 | #define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */␊ |
183 | ␊ |
184 | /*␊ |
185 | * Getkerninfo clock information structure␊ |
186 | */␊ |
187 | struct clockinfo {␊ |
188 | ␉int␉hz;␉␉/* clock frequency */␊ |
189 | ␉int␉tick;␉␉/* micro-seconds per hz tick */␊ |
190 | ␉int␉tickadj;␉/* clock skew rate for adjtime() */␊ |
191 | ␉int␉stathz;␉␉/* statistics clock frequency */␊ |
192 | ␉int␉profhz;␉␉/* profiling clock frequency */␊ |
193 | };␊ |
194 | #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */␊ |
195 | ␊ |
196 | ␊ |
197 | __BEGIN_DECLS␊ |
198 | ␊ |
199 | ␊ |
200 | int␉gettimeofday(struct timeval * __restrict, void * __restrict);␊ |
201 | ␊ |
202 | ␊ |
203 | ␊ |
204 | __END_DECLS␊ |
205 | ␊ |
206 | ␊ |
207 | #endif /* !_SYS_TIME_H_ */␊ |
208 | |