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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _TIME_H 32 #define _TIME_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.18 */ 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 extern int cftime(char *, char *, const time_t *); 181 extern int ascftime(char *, const char *, const struct tm *); 182 extern long altzone; 183 #endif 184 185 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \ 186 defined(_XPG4_2) || defined(__EXTENSIONS__) 187 extern struct tm *getdate(const char *); 188 #ifdef _REENTRANT 189 #undef getdate_err 190 #define getdate_err *(int *)_getdate_err_addr() 191 extern int *_getdate_err_addr(void); 192 #else 193 extern int getdate_err; 194 #endif /* _REENTRANT */ 195 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))... */ 196 197 #else /* __STDC__ */ 198 199 extern int cftime(), ascftime(); 200 extern void tzset(); 201 202 #ifdef _STRPTIME_DONTZERO 203 #ifdef __PRAGMA_REDEFINE_EXTNAME 204 #pragma redefine_extname strptime __strptime_dontzero 205 #else /* __PRAGMA_REDEFINE_EXTNAME */ 206 extern char *__strptime_dontzero(); 207 #define strptime __strptime_dontzero 208 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 209 #endif /* _STRPTIME_DONTZERO */ 210 211 extern char *strptime(); 212 213 #if defined(__EXTENSIONS__) || \ 214 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \ 215 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT) 216 extern struct tm *gmtime_r(); 217 extern struct tm *localtime_r(); 218 #endif 219 220 extern long timezone, altzone; 221 extern int daylight; 222 extern char *tzname[2]; 223 224 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 225 extern struct tm *getdate(); 226 #ifdef _REENTRANT 227 #undef getdate_err 228 #define getdate_err *(int *)_getdate_err_addr() 229 extern int *_getdate_err_addr(); 230 #else 231 extern int getdate_err; 232 #endif /* _REENTRANT */ 233 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 234 235 #endif /* __STDC__ */ 236 237 /* 238 * ctime_r() & asctime_r() prototypes are defined here. 239 */ 240 241 /* 242 * Previous releases of Solaris, starting at 2.3, provided definitions of 243 * various functions as specified in POSIX.1c, Draft 6. For some of these 244 * functions, the final POSIX 1003.1c standard had a different number of 245 * arguments and return values. 246 * 247 * The following segment of this header provides support for the standard 248 * interfaces while supporting applications written under earlier 249 * releases. The application defines appropriate values of the feature 250 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate 251 * whether it was written to expect the Draft 6 or standard versions of 252 * these interfaces, before including this header. This header then 253 * provides a mapping from the source version of the interface to an 254 * appropriate binary interface. Such mappings permit an application 255 * to be built from libraries and objects which have mixed expectations 256 * of the definitions of these functions. 257 * 258 * For applications using the Draft 6 definitions, the binary symbol is the 259 * same as the source symbol, and no explicit mapping is needed. For the 260 * standard interface, the function func() is mapped to the binary symbol 261 * _posix_func(). The preferred mechanism for the remapping is a compiler 262 * #pragma. If the compiler does not provide such a #pragma, the header file 263 * defines a static function func() which calls the _posix_func() version; 264 * this has to be done instead of #define since POSIX specifies that an 265 * application can #undef the symbol and still be bound to the correct 266 * implementation. Unfortunately, the statics confuse lint so we fallback to 267 * #define in that case. 268 * 269 * NOTE: Support for the Draft 6 definitions is provided for compatibility 270 * only. New applications/libraries should use the standard definitions. 271 */ 272 273 #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \ 274 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \ 275 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 276 277 #if defined(__STDC__) 278 279 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 280 281 #ifdef __PRAGMA_REDEFINE_EXTNAME 282 #pragma redefine_extname ctime_r __posix_ctime_r 283 #pragma redefine_extname asctime_r __posix_asctime_r 284 extern char *asctime_r(const struct tm *_RESTRICT_KYWD, char *_RESTRICT_KYWD); 285 extern char *ctime_r(const time_t *, char *); 286 #else /* __PRAGMA_REDEFINE_EXTNAME */ 287 288 extern char *__posix_asctime_r(const struct tm *_RESTRICT_KYWD, 289 char *_RESTRICT_KYWD); 290 extern char *__posix_ctime_r(const time_t *, char *); 291 292 #ifdef __lint 293 294 #define ctime_r __posix_ctime_r 295 #define asctime_r __posix_asctime_r 296 297 #else /* !__lint */ 298 299 static char * 300 asctime_r(const struct tm *_RESTRICT_KYWD __tm, char *_RESTRICT_KYWD __buf) 301 { 302 return (__posix_asctime_r(__tm, __buf)); 303 } 304 305 static char * 306 ctime_r(const time_t *__time, char *__buf) 307 { 308 return (__posix_ctime_r(__time, __buf)); 309 } 310 311 #endif /* !__lint */ 312 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 313 314 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 315 316 extern char *asctime_r(const struct tm *, char *, int); 317 extern char *ctime_r(const time_t *, char *, int); 318 319 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 320 321 #else /* __STDC__ */ 322 323 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 324 325 #ifdef __PRAGMA_REDEFINE_EXTNAME 326 #pragma redefine_extname asctime_r __posix_asctime_r 327 #pragma redefine_extname ctime_r __posix_ctime_r 328 extern char *asctime_r(); 329 extern char *ctime_r(); 330 #else /* __PRAGMA_REDEFINE_EXTNAME */ 331 332 extern char *__posix_asctime_r(); 333 extern char *__posix_ctime_r(); 334 335 #ifdef __lint 336 337 #define asctime_r __posix_asctime_r 338 #define ctime_r __posix_ctime_r 339 340 #else /* !__lint */ 341 342 static char * 343 asctime_r(__tm, __buf) 344 struct tm *__tm; 345 char *__buf; 346 { 347 return (__posix_asctime_r(__tm, __buf)); 348 } 349 static char * 350 ctime_r(__time, __buf) 351 time_t *__time; 352 char *__buf; 353 { 354 return (__posix_ctime_r(__time, __buf)); 355 } 356 357 #endif /* !__lint */ 358 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 359 360 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 361 362 extern char *asctime_r(); 363 extern char *ctime_r(); 364 365 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 366 367 #endif /* __STDC__ */ 368 369 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */ 370 371 #ifdef __cplusplus 372 } 373 #endif 374 375 #endif /* _TIME_H */ 376