[444] | 1 | /* |
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| 2 | * time.h |
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| 3 | * |
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| 4 | * Struct and function declarations for dealing with time. |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef _TIME_H_ |
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| 8 | #define _TIME_H_ |
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| 9 | |
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| 10 | #include "_ansi.h" |
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| 11 | #include <sys/cdefs.h> |
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| 12 | #include <sys/reent.h> |
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| 13 | |
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| 14 | #define __need_size_t |
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| 15 | #define __need_NULL |
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| 16 | #include <stddef.h> |
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| 17 | |
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| 18 | /* Get _CLOCKS_PER_SEC_ */ |
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| 19 | #include <machine/time.h> |
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| 20 | |
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| 21 | #ifndef _CLOCKS_PER_SEC_ |
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| 22 | #define _CLOCKS_PER_SEC_ 1000 |
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| 23 | #endif |
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| 24 | |
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| 25 | #define CLOCKS_PER_SEC _CLOCKS_PER_SEC_ |
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| 26 | #define CLK_TCK CLOCKS_PER_SEC |
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| 27 | |
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| 28 | #include <sys/types.h> |
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| 29 | #include <sys/timespec.h> |
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| 30 | |
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| 31 | #if __POSIX_VISIBLE >= 200809 |
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| 32 | #include <xlocale.h> |
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| 33 | #endif |
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| 34 | |
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| 35 | _BEGIN_STD_C |
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| 36 | |
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| 37 | struct tm |
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| 38 | { |
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| 39 | int tm_sec; |
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| 40 | int tm_min; |
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| 41 | int tm_hour; |
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| 42 | int tm_mday; |
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| 43 | int tm_mon; |
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| 44 | int tm_year; |
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| 45 | int tm_wday; |
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| 46 | int tm_yday; |
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| 47 | int tm_isdst; |
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| 48 | #ifdef __TM_GMTOFF |
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| 49 | long __TM_GMTOFF; |
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| 50 | #endif |
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| 51 | #ifdef __TM_ZONE |
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| 52 | const char *__TM_ZONE; |
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| 53 | #endif |
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| 54 | }; |
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| 55 | |
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| 56 | clock_t clock (void); |
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| 57 | double difftime (time_t _time2, time_t _time1); |
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| 58 | time_t mktime (struct tm *_timeptr); |
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| 59 | time_t time (time_t *_timer); |
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| 60 | #ifndef _REENT_ONLY |
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| 61 | char *asctime (const struct tm *_tblock); |
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| 62 | char *ctime (const time_t *_time); |
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| 63 | struct tm *gmtime (const time_t *_timer); |
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| 64 | struct tm *localtime (const time_t *_timer); |
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| 65 | #endif |
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| 66 | size_t strftime (char *__restrict _s, |
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| 67 | size_t _maxsize, const char *__restrict _fmt, |
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| 68 | const struct tm *__restrict _t); |
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| 69 | |
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| 70 | #if __POSIX_VISIBLE >= 200809 |
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| 71 | extern size_t strftime_l (char *__restrict _s, size_t _maxsize, |
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| 72 | const char *__restrict _fmt, |
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| 73 | const struct tm *__restrict _t, locale_t _l); |
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| 74 | #endif |
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| 75 | |
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| 76 | char *asctime_r (const struct tm *__restrict, |
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| 77 | char *__restrict); |
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| 78 | char *ctime_r (const time_t *, char *); |
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| 79 | struct tm *gmtime_r (const time_t *__restrict, |
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| 80 | struct tm *__restrict); |
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| 81 | struct tm *localtime_r (const time_t *__restrict, |
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| 82 | struct tm *__restrict); |
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| 83 | |
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| 84 | _END_STD_C |
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| 85 | |
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| 86 | #ifdef __cplusplus |
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| 87 | extern "C" { |
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| 88 | #endif |
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| 89 | |
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| 90 | #if __XSI_VISIBLE |
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| 91 | char *strptime (const char *__restrict, |
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| 92 | const char *__restrict, |
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| 93 | struct tm *__restrict); |
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| 94 | #endif |
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| 95 | #if __GNU_VISIBLE |
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| 96 | char *strptime_l (const char *__restrict, const char *__restrict, |
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| 97 | struct tm *__restrict, locale_t); |
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| 98 | #endif |
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| 99 | |
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| 100 | #if __POSIX_VISIBLE |
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| 101 | void tzset (void); |
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| 102 | #endif |
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| 103 | void _tzset_r (struct _reent *); |
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| 104 | |
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| 105 | typedef struct __tzrule_struct |
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| 106 | { |
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| 107 | char ch; |
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| 108 | int m; |
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| 109 | int n; |
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| 110 | int d; |
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| 111 | int s; |
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| 112 | time_t change; |
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| 113 | long offset; /* Match type of _timezone. */ |
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| 114 | } __tzrule_type; |
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| 115 | |
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| 116 | typedef struct __tzinfo_struct |
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| 117 | { |
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| 118 | int __tznorth; |
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| 119 | int __tzyear; |
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| 120 | __tzrule_type __tzrule[2]; |
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| 121 | } __tzinfo_type; |
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| 122 | |
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| 123 | __tzinfo_type *__gettzinfo (void); |
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| 124 | |
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| 125 | /* getdate functions */ |
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| 126 | |
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| 127 | #ifdef HAVE_GETDATE |
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| 128 | #if __XSI_VISIBLE >= 4 |
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| 129 | #ifndef _REENT_ONLY |
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| 130 | #define getdate_err (*__getdate_err()) |
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| 131 | int *__getdate_err (void); |
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| 132 | |
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| 133 | struct tm * getdate (const char *); |
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| 134 | /* getdate_err is set to one of the following values to indicate the error. |
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| 135 | 1 the DATEMSK environment variable is null or undefined, |
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| 136 | 2 the template file cannot be opened for reading, |
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| 137 | 3 failed to get file status information, |
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| 138 | 4 the template file is not a regular file, |
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| 139 | 5 an error is encountered while reading the template file, |
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| 140 | 6 memory allication failed (not enough memory available), |
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| 141 | 7 there is no line in the template that matches the input, |
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| 142 | 8 invalid input specification */ |
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| 143 | #endif /* !_REENT_ONLY */ |
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| 144 | #endif /* __XSI_VISIBLE >= 4 */ |
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| 145 | |
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| 146 | #if __GNU_VISIBLE |
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| 147 | /* getdate_r returns the error code as above */ |
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| 148 | int getdate_r (const char *, struct tm *); |
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| 149 | #endif /* __GNU_VISIBLE */ |
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| 150 | #endif /* HAVE_GETDATE */ |
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| 151 | |
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| 152 | /* defines for the opengroup specifications Derived from Issue 1 of the SVID. */ |
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| 153 | #if __SVID_VISIBLE || __XSI_VISIBLE |
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| 154 | extern __IMPORT long _timezone; |
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| 155 | extern __IMPORT int _daylight; |
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| 156 | #endif |
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| 157 | #if __POSIX_VISIBLE |
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| 158 | extern __IMPORT char *_tzname[2]; |
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| 159 | |
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| 160 | /* POSIX defines the external tzname being defined in time.h */ |
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| 161 | #ifndef tzname |
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| 162 | #define tzname _tzname |
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| 163 | #endif |
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| 164 | #endif /* __POSIX_VISIBLE */ |
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| 165 | |
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| 166 | #ifdef __cplusplus |
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| 167 | } |
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| 168 | #endif |
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| 169 | |
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| 170 | #include <sys/features.h> |
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| 171 | |
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| 172 | #ifdef __CYGWIN__ |
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| 173 | #include <cygwin/time.h> |
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| 174 | #endif /*__CYGWIN__*/ |
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| 175 | |
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| 176 | #if defined(_POSIX_TIMERS) |
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| 177 | |
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| 178 | #include <signal.h> |
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| 179 | |
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| 180 | #ifdef __cplusplus |
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| 181 | extern "C" { |
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| 182 | #endif |
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| 183 | |
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| 184 | /* Clocks, P1003.1b-1993, p. 263 */ |
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| 185 | |
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| 186 | int clock_settime (clockid_t clock_id, const struct timespec *tp); |
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| 187 | int clock_gettime (clockid_t clock_id, struct timespec *tp); |
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| 188 | int clock_getres (clockid_t clock_id, struct timespec *res); |
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| 189 | |
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| 190 | /* Create a Per-Process Timer, P1003.1b-1993, p. 264 */ |
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| 191 | |
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| 192 | int timer_create (clockid_t clock_id, |
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| 193 | struct sigevent *__restrict evp, |
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| 194 | timer_t *__restrict timerid); |
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| 195 | |
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| 196 | /* Delete a Per_process Timer, P1003.1b-1993, p. 266 */ |
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| 197 | |
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| 198 | int timer_delete (timer_t timerid); |
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| 199 | |
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| 200 | /* Per-Process Timers, P1003.1b-1993, p. 267 */ |
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| 201 | |
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| 202 | int timer_settime (timer_t timerid, int flags, |
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| 203 | const struct itimerspec *__restrict value, |
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| 204 | struct itimerspec *__restrict ovalue); |
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| 205 | int timer_gettime (timer_t timerid, struct itimerspec *value); |
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| 206 | int timer_getoverrun (timer_t timerid); |
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| 207 | |
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| 208 | /* High Resolution Sleep, P1003.1b-1993, p. 269 */ |
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| 209 | |
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| 210 | int nanosleep (const struct timespec *rqtp, struct timespec *rmtp); |
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| 211 | |
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| 212 | #ifdef __cplusplus |
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| 213 | } |
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| 214 | #endif |
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| 215 | #endif /* _POSIX_TIMERS */ |
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| 216 | |
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| 217 | #if defined(_POSIX_CLOCK_SELECTION) |
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| 218 | |
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| 219 | #ifdef __cplusplus |
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| 220 | extern "C" { |
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| 221 | #endif |
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| 222 | |
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| 223 | int clock_nanosleep (clockid_t clock_id, int flags, |
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| 224 | const struct timespec *rqtp, struct timespec *rmtp); |
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| 225 | |
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| 226 | #ifdef __cplusplus |
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| 227 | } |
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| 228 | #endif |
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| 229 | |
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| 230 | #endif /* _POSIX_CLOCK_SELECTION */ |
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| 231 | |
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| 232 | #ifdef __cplusplus |
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| 233 | extern "C" { |
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| 234 | #endif |
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| 235 | |
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| 236 | /* CPU-time Clock Attributes, P1003.4b/D8, p. 54 */ |
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| 237 | |
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| 238 | /* values for the clock enable attribute */ |
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| 239 | |
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| 240 | #define CLOCK_ENABLED 1 /* clock is enabled, i.e. counting execution time */ |
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| 241 | #define CLOCK_DISABLED 0 /* clock is disabled */ |
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| 242 | |
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| 243 | /* values for the pthread cputime_clock_allowed attribute */ |
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| 244 | |
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| 245 | #define CLOCK_ALLOWED 1 /* If a thread is created with this value a */ |
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| 246 | /* CPU-time clock attached to that thread */ |
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| 247 | /* shall be accessible. */ |
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| 248 | #define CLOCK_DISALLOWED 0 /* If a thread is created with this value, the */ |
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| 249 | /* thread shall not have a CPU-time clock */ |
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| 250 | /* accessible. */ |
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| 251 | |
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| 252 | /* Manifest Constants, P1003.1b-1993, p. 262 */ |
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| 253 | |
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| 254 | #define CLOCK_REALTIME (clockid_t)1 |
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| 255 | |
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| 256 | /* Flag indicating time is "absolute" with respect to the clock |
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| 257 | associated with a time. */ |
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| 258 | |
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| 259 | #define TIMER_ABSTIME 4 |
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| 260 | |
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| 261 | /* Manifest Constants, P1003.4b/D8, p. 55 */ |
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| 262 | |
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| 263 | #if defined(_POSIX_CPUTIME) |
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| 264 | |
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| 265 | /* When used in a clock or timer function call, this is interpreted as |
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| 266 | the identifier of the CPU_time clock associated with the PROCESS |
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| 267 | making the function call. */ |
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| 268 | |
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| 269 | #define CLOCK_PROCESS_CPUTIME_ID (clockid_t)2 |
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| 270 | |
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| 271 | #endif |
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| 272 | |
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| 273 | #if defined(_POSIX_THREAD_CPUTIME) |
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| 274 | |
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| 275 | /* When used in a clock or timer function call, this is interpreted as |
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| 276 | the identifier of the CPU_time clock associated with the THREAD |
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| 277 | making the function call. */ |
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| 278 | |
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| 279 | #define CLOCK_THREAD_CPUTIME_ID (clockid_t)3 |
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| 280 | |
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| 281 | #endif |
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| 282 | |
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| 283 | #if defined(_POSIX_MONOTONIC_CLOCK) |
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| 284 | |
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| 285 | /* The identifier for the system-wide monotonic clock, which is defined |
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| 286 | * as a clock whose value cannot be set via clock_settime() and which |
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| 287 | * cannot have backward clock jumps. */ |
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| 288 | |
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| 289 | #define CLOCK_MONOTONIC (clockid_t)4 |
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| 290 | |
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| 291 | #endif |
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| 292 | |
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| 293 | #if defined(_POSIX_CPUTIME) |
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| 294 | |
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| 295 | /* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */ |
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| 296 | |
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| 297 | int clock_getcpuclockid (pid_t pid, clockid_t *clock_id); |
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| 298 | |
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| 299 | #endif /* _POSIX_CPUTIME */ |
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| 300 | |
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| 301 | #if defined(_POSIX_CPUTIME) || defined(_POSIX_THREAD_CPUTIME) |
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| 302 | |
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| 303 | /* CPU-time Clock Attribute Access, P1003.4b/D8, p. 56 */ |
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| 304 | |
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| 305 | int clock_setenable_attr (clockid_t clock_id, int attr); |
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| 306 | int clock_getenable_attr (clockid_t clock_id, int *attr); |
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| 307 | |
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| 308 | #endif /* _POSIX_CPUTIME or _POSIX_THREAD_CPUTIME */ |
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| 309 | |
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| 310 | #ifdef __cplusplus |
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| 311 | } |
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| 312 | #endif |
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| 313 | |
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| 314 | #endif /* _TIME_H_ */ |
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| 315 | |
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