1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /* Copyright (c) 1988 AT&T */
22 /* All Rights Reserved */
23
24
25 /*
26 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29 /*
30 * Copyright 2010 Nexenta Systems, Inc. Al rights reserved.
31 */
32
33 #ifndef _TIME_H
34 #define _TIME_H
35
36 #include <sys/feature_tests.h>
37 #include <iso/time_iso.h>
38 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
39 (_POSIX_C_SOURCE > 2) || defined(__EXTENSIONS__)
40 #include <sys/types.h>
41 #include <sys/time_impl.h>
42 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) ... */
43
44 /*
45 * Allow global visibility for symbols defined in
46 * C++ "std" namespace in <iso/time_iso.h>.
47 */
48 #if __cplusplus >= 199711L
49 using std::size_t;
50 using std::clock_t;
51 using std::time_t;
52 using std::tm;
53 using std::asctime;
54 using std::clock;
55 using std::ctime;
56 using std::difftime;
57 using std::gmtime;
58 using std::localtime;
59 using std::mktime;
60 using std::time;
61 using std::strftime;
62 #endif
63
64 #ifdef __cplusplus
65 extern "C" {
66 #endif
67
68 #ifndef _CLOCKID_T
69 #define _CLOCKID_T
70 typedef int clockid_t;
71 #endif
72
73 #ifndef _TIMER_T
74 #define _TIMER_T
75 typedef int timer_t;
76 #endif
77
78 #if defined(__STDC__)
79
80 #if defined(__EXTENSIONS__) || \
81 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
82 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT)
83 extern struct tm *gmtime_r(const time_t *_RESTRICT_KYWD,
84 struct tm *_RESTRICT_KYWD);
85 extern struct tm *localtime_r(const time_t *_RESTRICT_KYWD,
86 struct tm *_RESTRICT_KYWD);
87 #endif
88
89 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
90 defined(_XPG4) || defined(__EXTENSIONS__)
91
92 #ifdef _STRPTIME_DONTZERO
93 #ifdef __PRAGMA_REDEFINE_EXTNAME
94 #pragma redefine_extname strptime __strptime_dontzero
95 #else /* __PRAGMA_REDEFINE_EXTNAME */
96 extern char *__strptime_dontzero(const char *, const char *, struct tm *);
97 #define strptime __strptime_dontzero
98 #endif /* __PRAGMA_REDEFINE_EXTNAME */
99 #endif /* _STRPTIME_DONTZERO */
100
101 extern char *strptime(const char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
102 struct tm *_RESTRICT_KYWD);
103
104 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))... */
105
106 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
107 (_POSIX_C_SOURCE > 2) || defined(__EXTENSIONS__)
108 /*
109 * Neither X/Open nor POSIX allow the inclusion of <signal.h> for the
110 * definition of the sigevent structure. Both require the inclusion
111 * of <signal.h> and <time.h> when using the timer_create() function.
112 * However, X/Open also specifies that the sigevent structure be defined
113 * in <time.h> as described in the header <signal.h>. This prevents
114 * compiler warnings for applications that only include <time.h> and not
115 * also <signal.h>. The sigval union and the sigevent structure is
116 * therefore defined both here and in <sys/siginfo.h> which gets included
117 * via inclusion of <signal.h>.
118 */
119 #ifndef _SIGVAL
120 #define _SIGVAL
121 union sigval {
122 int sival_int; /* integer value */
123 void *sival_ptr; /* pointer value */
124 };
125 #endif /* _SIGVAL */
126
127 #ifndef _SIGEVENT
128 #define _SIGEVENT
129 struct sigevent {
130 int sigev_notify; /* notification mode */
131 int sigev_signo; /* signal number */
132 union sigval sigev_value; /* signal value */
133 void (*sigev_notify_function)(union sigval);
134 pthread_attr_t *sigev_notify_attributes;
135 int __sigev_pad2;
136 };
137 #endif /* _SIGEVENT */
138
139 extern int clock_getres(clockid_t, struct timespec *);
140 extern int clock_gettime(clockid_t, struct timespec *);
141 extern int clock_settime(clockid_t, const struct timespec *);
142 extern int timer_create(clockid_t, struct sigevent *_RESTRICT_KYWD,
143 timer_t *_RESTRICT_KYWD);
144 extern int timer_delete(timer_t);
145 extern int timer_getoverrun(timer_t);
146 extern int timer_gettime(timer_t, struct itimerspec *);
147 extern int timer_settime(timer_t, int, const struct itimerspec *_RESTRICT_KYWD,
148 struct itimerspec *_RESTRICT_KYWD);
149
150 extern int nanosleep(const struct timespec *, struct timespec *);
151 extern int clock_nanosleep(clockid_t, int,
152 const struct timespec *, struct timespec *);
153
154 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))... */
155
156 #if !defined(_STRICT_STDC) || defined(__XOPEN_OR_POSIX) || \
157 defined(__EXTENSIONS__)
158
159 extern void tzset(void);
160 extern char *tzname[2];
161
162 /* CLK_TCK marked as LEGACY in SUSv2 and removed in SUSv3 */
163 #if !defined(_XPG6) || defined(__EXTENSIONS__)
164 #ifndef CLK_TCK
165 extern long _sysconf(int); /* System Private interface to sysconf() */
166 #define CLK_TCK ((clock_t)_sysconf(3)) /* clock ticks per second */
167 /* 3 is _SC_CLK_TCK */
168 #endif
169 #endif /* !defined(_XPG6) || defined(__EXTENSIONS__) */
170
171 #if (!defined(_STRICT_STDC) && !defined(_POSIX_C_SOURCE)) || \
172 defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__)
173 extern long timezone;
174 extern int daylight;
175 #endif
176
177 #endif /* !defined(_STRICT_STDC) || defined(__XOPEN_OR_POSIX)... */
178
179 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
180 defined(__EXTENSIONS__)
181 extern time_t timegm(struct tm *);
182 extern int cftime(char *, char *, const time_t *);
183 extern int ascftime(char *, const char *, const struct tm *);
184 extern long altzone;
185 #endif
186
187 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
188 defined(_XPG4_2) || defined(__EXTENSIONS__)
189 extern struct tm *getdate(const char *);
190 #ifdef _REENTRANT
191 #undef getdate_err
192 #define getdate_err *(int *)_getdate_err_addr()
193 extern int *_getdate_err_addr(void);
194 #else
195 extern int getdate_err;
196 #endif /* _REENTRANT */
197 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))... */
198
199 #else /* __STDC__ */
200
201 extern int cftime(), ascftime();
202 extern void tzset();
203 extern time_t timegm();
204
205 #ifdef _STRPTIME_DONTZERO
206 #ifdef __PRAGMA_REDEFINE_EXTNAME
207 #pragma redefine_extname strptime __strptime_dontzero
208 #else /* __PRAGMA_REDEFINE_EXTNAME */
209 extern char *__strptime_dontzero();
210 #define strptime __strptime_dontzero
211 #endif /* __PRAGMA_REDEFINE_EXTNAME */
212 #endif /* _STRPTIME_DONTZERO */
213
214 extern char *strptime();
215
216 #if defined(__EXTENSIONS__) || \
217 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
218 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT)
219 extern struct tm *gmtime_r();
220 extern struct tm *localtime_r();
221 #endif
222
223 extern long timezone, altzone;
224 extern int daylight;
225 extern char *tzname[2];
226
227 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
228 extern struct tm *getdate();
229 #ifdef _REENTRANT
230 #undef getdate_err
231 #define getdate_err *(int *)_getdate_err_addr()
232 extern int *_getdate_err_addr();
233 #else
234 extern int getdate_err;
235 #endif /* _REENTRANT */
236 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
237
238 #endif /* __STDC__ */
239
240 /*
241 * ctime_r() & asctime_r() prototypes are defined here.
242 */
243
244 /*
245 * Previous releases of Solaris, starting at 2.3, provided definitions of
246 * various functions as specified in POSIX.1c, Draft 6. For some of these
247 * functions, the final POSIX 1003.1c standard had a different number of
248 * arguments and return values.
249 *
250 * The following segment of this header provides support for the standard
251 * interfaces while supporting applications written under earlier
252 * releases. The application defines appropriate values of the feature
253 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
254 * whether it was written to expect the Draft 6 or standard versions of
255 * these interfaces, before including this header. This header then
256 * provides a mapping from the source version of the interface to an
257 * appropriate binary interface. Such mappings permit an application
258 * to be built from libraries and objects which have mixed expectations
259 * of the definitions of these functions.
260 *
261 * For applications using the Draft 6 definitions, the binary symbol is the
262 * same as the source symbol, and no explicit mapping is needed. For the
263 * standard interface, the function func() is mapped to the binary symbol
264 * _posix_func(). The preferred mechanism for the remapping is a compiler
265 * #pragma. If the compiler does not provide such a #pragma, the header file
266 * defines a static function func() which calls the _posix_func() version;
267 * this has to be done instead of #define since POSIX specifies that an
268 * application can #undef the symbol and still be bound to the correct
269 * implementation. Unfortunately, the statics confuse lint so we fallback to
270 * #define in that case.
271 *
272 * NOTE: Support for the Draft 6 definitions is provided for compatibility
273 * only. New applications/libraries should use the standard definitions.
274 */
275
276 #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \
277 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
278 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
279
280 #if defined(__STDC__)
281
282 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
283
284 #ifdef __PRAGMA_REDEFINE_EXTNAME
285 #pragma redefine_extname ctime_r __posix_ctime_r
286 #pragma redefine_extname asctime_r __posix_asctime_r
287 extern char *asctime_r(const struct tm *_RESTRICT_KYWD, char *_RESTRICT_KYWD);
288 extern char *ctime_r(const time_t *, char *);
289 #else /* __PRAGMA_REDEFINE_EXTNAME */
290
291 extern char *__posix_asctime_r(const struct tm *_RESTRICT_KYWD,
292 char *_RESTRICT_KYWD);
293 extern char *__posix_ctime_r(const time_t *, char *);
294
295 #ifdef __lint
296
297 #define ctime_r __posix_ctime_r
298 #define asctime_r __posix_asctime_r
299
300 #else /* !__lint */
301
302 static char *
303 asctime_r(const struct tm *_RESTRICT_KYWD __tm, char *_RESTRICT_KYWD __buf)
304 {
305 return (__posix_asctime_r(__tm, __buf));
306 }
307
308 static char *
309 ctime_r(const time_t *__time, char *__buf)
310 {
311 return (__posix_ctime_r(__time, __buf));
312 }
313
314 #endif /* !__lint */
315 #endif /* __PRAGMA_REDEFINE_EXTNAME */
316
317 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
318
319 extern char *asctime_r(const struct tm *, char *, int);
320 extern char *ctime_r(const time_t *, char *, int);
321
322 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
323
324 #else /* __STDC__ */
325
326 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
327
328 #ifdef __PRAGMA_REDEFINE_EXTNAME
329 #pragma redefine_extname asctime_r __posix_asctime_r
330 #pragma redefine_extname ctime_r __posix_ctime_r
331 extern char *asctime_r();
332 extern char *ctime_r();
333 #else /* __PRAGMA_REDEFINE_EXTNAME */
334
335 extern char *__posix_asctime_r();
336 extern char *__posix_ctime_r();
337
338 #ifdef __lint
339
340 #define asctime_r __posix_asctime_r
341 #define ctime_r __posix_ctime_r
342
343 #else /* !__lint */
344
345 static char *
346 asctime_r(__tm, __buf)
347 struct tm *__tm;
348 char *__buf;
349 {
350 return (__posix_asctime_r(__tm, __buf));
351 }
352 static char *
353 ctime_r(__time, __buf)
354 time_t *__time;
355 char *__buf;
356 {
357 return (__posix_ctime_r(__time, __buf));
358 }
359
360 #endif /* !__lint */
361 #endif /* __PRAGMA_REDEFINE_EXTNAME */
362
363 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
364
365 extern char *asctime_r();
366 extern char *ctime_r();
367
368 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
369
370 #endif /* __STDC__ */
371
372 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
373
374 #ifdef __cplusplus
375 }
376 #endif
377
378 #endif /* _TIME_H */