Chameleon

Chameleon Svn Source Tree

Root/branches/cparm/i386/modules/include/sys/time.h

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␊
82typedef␉__darwin_time_t␉time_t;␊
83#endif␊
84␊
85#ifndef _SUSECONDS_T␊
86#define _SUSECONDS_T␊
87typedef __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 */␊
94struct␉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␊
144struct 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 */␊
187struct 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␊
200int␉gettimeofday(struct timeval * __restrict, void * __restrict);␊
201␊
202␊
203␊
204__END_DECLS␊
205␊
206␊
207#endif /* !_SYS_TIME_H_ */␊
208

Archive Download this file

Revision: 2182