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 */ 379