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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␊
70/*␊
71 * [XSI] The fd_set type shall be defined as described in <sys/select.h>.␊
72 * The timespec structure shall be defined as described in <time.h>␊
73 */␊
74#define __need_fd_set␊
75#define __need_struct_timespec␊
76#define __need_struct_timeval␊
77#include <sys/_structs.h>␊
78␊
79#ifndef␉_TIME_T␊
80#define␉_TIME_T␊
81typedef␉__darwin_time_t␉time_t;␊
82#endif␊
83␊
84#ifndef _SUSECONDS_T␊
85#define _SUSECONDS_T␊
86typedef __darwin_suseconds_t␉suseconds_t;␊
87#endif␊
88␊
89/*␊
90 * Structure used as a parameter by getitimer(2) and setitimer(2) system␊
91 * calls.␊
92 */␊
93struct␉itimerval {␊
94␉struct␉timeval it_interval;␉/* timer interval */␊
95␉struct␉timeval it_value;␉/* current value */␊
96};␊
97␊
98/*␊
99 * Names of the interval timers, and structure␊
100 * defining a timer setting.␊
101 */␊
102#define␉ITIMER_REAL␉0␊
103#define␉ITIMER_VIRTUAL␉1␊
104#define␉ITIMER_PROF␉2␊
105␊
106/*␊
107 * Select uses bit masks of file descriptors in longs. These macros␊
108 * manipulate such bit fields (the filesystem macros use chars). The␊
109 * extra protection here is to permit application redefinition above␊
110 * the default size.␊
111 */␊
112#ifndef␉FD_SETSIZE␊
113#define␉FD_SETSIZE␉__DARWIN_FD_SETSIZE␊
114#endif␉/* FD_SETSIZE */␊
115#ifndef FD_SET␊
116#define␉FD_SET(n, p)␉__DARWIN_FD_SET(n, p)␊
117#endif␉/* FD_SET */␊
118#ifndef␉FD_CLR␊
119#define␉FD_CLR(n,p)␉__DARWIN_FD_CLR(n, p)␊
120#endif␉/* FD_CLR */␊
121#ifndef FD_ISSET␊
122#define␉FD_ISSET(n, p)␉__DARWIN_FD_ISSET(n, p)␊
123#endif␉/* FD_ISSET */␊
124#ifndef FD_ZERO␊
125#define␉FD_ZERO(p)␉__DARWIN_FD_ZERO(p)␊
126#endif␉/* FD_ZERO */␊
127␊
128#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
129␊
130#ifndef FD_COPY␊
131#define␉FD_COPY(f, t)␉__DARWIN_FD_COPY(f, t)␊
132#endif␉/* FD_COPY */␊
133␊
134#define␉TIMEVAL_TO_TIMESPEC(tv, ts) {␉␉␉␉␉\␊
135␉(ts)->tv_sec = (tv)->tv_sec;␉␉␉␉␉\␊
136␉(ts)->tv_nsec = (tv)->tv_usec * 1000;␉␉␉␉\␊
137}␊
138#define␉TIMESPEC_TO_TIMEVAL(tv, ts) {␉␉␉␉␉\␊
139␉(tv)->tv_sec = (ts)->tv_sec;␉␉␉␉␉\␊
140␉(tv)->tv_usec = (ts)->tv_nsec / 1000;␉␉␉␉\␊
141}␊
142␊
143struct timezone {␊
144␉int␉tz_minuteswest;␉/* minutes west of Greenwich */␊
145␉int␉tz_dsttime;␉/* type of dst correction */␊
146};␊
147#define␉DST_NONE␉0␉/* not on dst */␊
148#define␉DST_USA␉␉1␉/* USA style dst */␊
149#define␉DST_AUST␉2␉/* Australian style dst */␊
150#define␉DST_WET␉␉3␉/* Western European dst */␊
151#define␉DST_MET␉␉4␉/* Middle European dst */␊
152#define␉DST_EET␉␉5␉/* Eastern European dst */␊
153#define␉DST_CAN␉␉6␉/* Canada */␊
154␊
155/* Operations on timevals. */␊
156#define␉timerclear(tvp)␉␉(tvp)->tv_sec = (tvp)->tv_usec = 0␊
157#define␉timerisset(tvp)␉␉((tvp)->tv_sec || (tvp)->tv_usec)␊
158#define␉timercmp(tvp, uvp, cmp)␉␉␉␉␉␉\␊
159␉(((tvp)->tv_sec == (uvp)->tv_sec) ?␉␉␉␉\␊
160␉ ((tvp)->tv_usec cmp (uvp)->tv_usec) :␉␉␉\␊
161␉ ((tvp)->tv_sec cmp (uvp)->tv_sec))␊
162#define␉timeradd(tvp, uvp, vvp)␉␉␉␉␉␉\␊
163␉do {␉␉␉␉␉␉␉␉\␊
164␉␉(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;␉␉\␊
165␉␉(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;␉\␊
166␉␉if ((vvp)->tv_usec >= 1000000) {␉␉␉\␊
167␉␉␉(vvp)->tv_sec++;␉␉␉␉\␊
168␉␉␉(vvp)->tv_usec -= 1000000;␉␉␉\␊
169␉␉}␉␉␉␉␉␉␉\␊
170␉} while (0)␊
171#define␉timersub(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 < 0) {␉␉␉␉\␊
176␉␉␉(vvp)->tv_sec--;␉␉␉␉\␊
177␉␉␉(vvp)->tv_usec += 1000000;␉␉␉\␊
178␉␉}␉␉␉␉␉␉␉\␊
179␉} while (0)␊
180␊
181#define timevalcmp(l, r, cmp) timercmp(l, r, cmp) /* freebsd */␊
182␊
183/*␊
184 * Getkerninfo clock information structure␊
185 */␊
186struct clockinfo {␊
187␉int␉hz;␉␉/* clock frequency */␊
188␉int␉tick;␉␉/* micro-seconds per hz tick */␊
189␉int␉tickadj;␉/* clock skew rate for adjtime() */␊
190␉int␉stathz;␉␉/* statistics clock frequency */␊
191␉int␉profhz;␉␉/* profiling clock frequency */␊
192};␊
193#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */␊
194␊
195␊
196#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
197#include <time.h>␊
198#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */␊
199␊
200__BEGIN_DECLS␊
201␊
202#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
203int␉adjtime(const struct timeval *, struct timeval *);␊
204int␉futimes(int, const struct timeval *);␊
205int␉lutimes(const char *, const struct timeval *);␊
206int␉settimeofday(const struct timeval *, const struct timezone *);␊
207#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */␊
208␊
209int␉getitimer(int, struct itimerval *);␊
210int␉gettimeofday(struct timeval * __restrict, void * __restrict);␊
211␊
212#include <sys/_select.h>␉/* select() prototype */␊
213␊
214int␉setitimer(int, const struct itimerval * __restrict,␊
215␉␉struct itimerval * __restrict);␊
216int␉utimes(const char *, const struct timeval *);␊
217␊
218__END_DECLS␊
219␊
220␊
221#endif /* !_SYS_TIME_H_ */␊
222

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