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 2014 Garrett D'Amore <garrett@damore.org> 27 * 28 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 29 * Use is subject to license terms. 30 */ 31 /* 32 * Copyright 2010 Nexenta Systems, Inc. Al rights reserved. 33 */ 34 35 #ifndef _TIME_H 36 #define _TIME_H 37 38 #include <sys/feature_tests.h> 39 #include <iso/time_iso.h> 40 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \ 41 (_POSIX_C_SOURCE > 2) || defined(__EXTENSIONS__) 42 #include <sys/types.h> 43 #include <sys/time_impl.h> 44 #endif /* (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) ... */ 45 46 /* 47 * Allow global visibility for symbols defined in 48 * C++ "std" namespace in <iso/time_iso.h>. 49 */ 50 #if __cplusplus >= 199711L 51 using std::size_t; 52 using std::clock_t; 53 using std::time_t; 54 using std::tm; 55 using std::asctime; 56 using std::clock; 57 using std::ctime; 58 using std::difftime; 59 using std::gmtime; 60 using std::localtime; 61 using std::mktime; 62 using std::time; 63 using std::strftime; 64 #endif 65 66 #ifdef __cplusplus 67 extern "C" { 68 #endif 69 70 #ifndef _CLOCKID_T 71 #define _CLOCKID_T 72 typedef int clockid_t; 73 #endif 74 75 #ifndef _TIMER_T 76 #define _TIMER_T 77 typedef int timer_t; 78 #endif 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 /* 200 * ctime_r() & asctime_r() prototypes are defined here. 201 */ 202 203 /* 204 * Previous releases of Solaris, starting at 2.3, provided definitions of 205 * various functions as specified in POSIX.1c, Draft 6. For some of these 206 * functions, the final POSIX 1003.1c standard had a different number of 207 * arguments and return values. 208 * 209 * The following segment of this header provides support for the standard 210 * interfaces while supporting applications written under earlier 211 * releases. The application defines appropriate values of the feature 212 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate 213 * whether it was written to expect the Draft 6 or standard versions of 214 * these interfaces, before including this header. This header then 215 * provides a mapping from the source version of the interface to an 216 * appropriate binary interface. Such mappings permit an application 217 * to be built from libraries and objects which have mixed expectations 218 * of the definitions of these functions. 219 * 220 * For applications using the Draft 6 definitions, the binary symbol is the 221 * same as the source symbol, and no explicit mapping is needed. For the 222 * standard interface, the function func() is mapped to the binary symbol 223 * _posix_func(). The preferred mechanism for the remapping is a compiler 224 * #pragma. If the compiler does not provide such a #pragma, the header file 225 * defines a static function func() which calls the _posix_func() version; 226 * this has to be done instead of #define since POSIX specifies that an 227 * application can #undef the symbol and still be bound to the correct 228 * implementation. Unfortunately, the statics confuse lint so we fallback to 229 * #define in that case. 230 * 231 * NOTE: Support for the Draft 6 definitions is provided for compatibility 232 * only. New applications/libraries should use the standard definitions. 233 */ 234 235 #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \ 236 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \ 237 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 238 239 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 240 241 #ifdef __PRAGMA_REDEFINE_EXTNAME 242 #pragma redefine_extname ctime_r __posix_ctime_r 243 #pragma redefine_extname asctime_r __posix_asctime_r 244 extern char *asctime_r(const struct tm *_RESTRICT_KYWD, char *_RESTRICT_KYWD); 245 extern char *ctime_r(const time_t *, char *); 246 #else /* __PRAGMA_REDEFINE_EXTNAME */ 247 248 extern char *__posix_asctime_r(const struct tm *_RESTRICT_KYWD, 249 char *_RESTRICT_KYWD); 250 extern char *__posix_ctime_r(const time_t *, char *); 251 252 #ifdef __lint 253 254 #define ctime_r __posix_ctime_r 255 #define asctime_r __posix_asctime_r 256 257 #else /* !__lint */ 258 259 static char * 260 asctime_r(const struct tm *_RESTRICT_KYWD __tm, char *_RESTRICT_KYWD __buf) 261 { 262 return (__posix_asctime_r(__tm, __buf)); 263 } 264 265 static char * 266 ctime_r(const time_t *__time, char *__buf) 267 { 268 return (__posix_ctime_r(__time, __buf)); 269 } 270 271 #endif /* !__lint */ 272 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 273 274 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 275 276 extern char *asctime_r(const struct tm *, char *, int); 277 extern char *ctime_r(const time_t *, char *, int); 278 279 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 280 281 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */ 282 283 284 #if defined(_XPG7) || !defined(_STRICT_SYMBOLS) 285 286 #ifndef _LOCALE_T 287 #define _LOCALE_T 288 typedef struct _locale *locale_t; 289 #endif 290 291 extern size_t strftime_l(char *_RESTRICT_KYWD, size_t, 292 const char *_RESTRICT_KYWD, const struct tm *_RESTRICT_KYWD, locale_t); 293 294 #endif /* defined(_XPG7) || !defined(_STRICT_SYMBOLS) */ 295 296 #ifdef __cplusplus 297 } 298 #endif 299 300 #endif /* _TIME_H */ 301