215 lines
5.8 KiB
C
215 lines
5.8 KiB
C
/*
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* time.h
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is a part of the mingw-runtime package.
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* No warranty is given; refer to the file DISCLAIMER within the package.
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*
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* Date and time functions and types.
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*
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*/
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#ifndef _TIME_H_
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#define _TIME_H_
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/* All the headers include this file. */
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#include <_mingw.h>
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#define __need_wchar_t
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#define __need_size_t
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#define __need_NULL
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#ifndef RC_INVOKED
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#include <stddef.h>
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#endif /* Not RC_INVOKED */
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/*
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* Number of clock ticks per second. A clock tick is the unit by which
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* processor time is measured and is returned by 'clock'.
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*/
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#define CLOCKS_PER_SEC ((clock_t)1000)
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#define CLK_TCK CLOCKS_PER_SEC
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#ifndef RC_INVOKED
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/*
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* A type for storing the current time and date. This is the number of
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* seconds since midnight Jan 1, 1970.
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* NOTE: This is also defined in non-ISO sys/types.h.
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*/
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#ifndef _TIME_T_DEFINED
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typedef long time_t;
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#define _TIME_T_DEFINED
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#endif
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#ifndef __STRICT_ANSI__
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/* A 64-bit time_t to get to Y3K */
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#ifndef _TIME64_T_DEFINED
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typedef __int64 __time64_t
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#define _TIME64_T_DEFINED
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#endif
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#endif
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/*
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* A type for measuring processor time (in clock ticks).
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*/
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#ifndef _CLOCK_T_DEFINED
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typedef long clock_t;
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#define _CLOCK_T_DEFINED
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#endif
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/*
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* A structure for storing all kinds of useful information about the
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* current (or another) time.
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*/
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struct tm
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{
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int tm_sec; /* Seconds: 0-59 (K&R says 0-61?) */
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int tm_min; /* Minutes: 0-59 */
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int tm_hour; /* Hours since midnight: 0-23 */
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int tm_mday; /* Day of the month: 1-31 */
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int tm_mon; /* Months *since* january: 0-11 */
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int tm_year; /* Years since 1900 */
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int tm_wday; /* Days since Sunday (0-6) */
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int tm_yday; /* Days since Jan. 1: 0-365 */
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int tm_isdst; /* +1 Daylight Savings Time, 0 No DST,
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* -1 don't know */
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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_CRTIMP clock_t __cdecl clock (void);
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_CRTIMP time_t __cdecl time (time_t*);
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_CRTIMP double __cdecl difftime (time_t, time_t);
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_CRTIMP time_t __cdecl mktime (struct tm*);
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/*
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* These functions write to and return pointers to static buffers that may
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* be overwritten by other function calls. Yikes!
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*
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* NOTE: localtime, and perhaps the others of the four functions grouped
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* below may return NULL if their argument is not 'acceptable'. Also note
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* that calling asctime with a NULL pointer will produce an Invalid Page
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* Fault and crap out your program. Guess how I know. Hint: stat called on
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* a directory gives 'invalid' times in st_atime etc...
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*/
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_CRTIMP char* __cdecl asctime (const struct tm*);
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_CRTIMP char* __cdecl ctime (const time_t*);
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_CRTIMP struct tm* __cdecl gmtime (const time_t*);
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_CRTIMP struct tm* __cdecl localtime (const time_t*);
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_CRTIMP size_t __cdecl strftime (char*, size_t, const char*, const struct tm*);
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#ifndef __STRICT_ANSI__
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extern _CRTIMP void __cdecl _tzset (void);
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#ifndef _NO_OLDNAMES
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extern _CRTIMP void __cdecl tzset (void);
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#endif
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_CRTIMP char* __cdecl _strdate(char*);
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_CRTIMP char* __cdecl _strtime(char*);
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/* These require newer versions of msvcrt.dll (6.10 or higher). */
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#if __MSVCRT_VERSION__ >= 0x0601
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_CRTIMP __time64_t __cdecl _time64( __time64_t);
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_CRTIMP __time64_t __cdecl _mktime64 (struct tm*);
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_CRTIMP char* __cdecl _ctime64 (const __time64_t*);
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_CRTIMP struct tm* __cdecl _gmtime64 (const __time64_t*);
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_CRTIMP struct tm* __cdecl _localtime64 (const __time64_t*);
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#endif /* __MSVCRT_VERSION__ >= 0x0601 */
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/*
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* _daylight: non zero if daylight savings time is used.
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* _timezone: difference in seconds between GMT and local time.
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* _tzname: standard/daylight savings time zone names (an array with two
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* elements).
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*/
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#ifdef __MSVCRT__
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/* These are for compatibility with pre-VC 5.0 suppied MSVCRT. */
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extern _CRTIMP int* __cdecl __p__daylight (void);
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extern _CRTIMP long* __cdecl __p__timezone (void);
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extern _CRTIMP char** __cdecl __p__tzname (void);
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__MINGW_IMPORT int _daylight;
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__MINGW_IMPORT long _timezone;
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__MINGW_IMPORT char *_tzname[2];
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#else /* not __MSVCRT (ie. crtdll) */
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#ifndef __DECLSPEC_SUPPORTED
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extern int* _imp___daylight_dll;
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extern long* _imp___timezone_dll;
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extern char** _imp___tzname;
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#define _daylight (*_imp___daylight_dll)
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#define _timezone (*_imp___timezone_dll)
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#define _tzname (*_imp___tzname)
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#else /* __DECLSPEC_SUPPORTED */
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__MINGW_IMPORT int _daylight_dll;
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__MINGW_IMPORT long _timezone_dll;
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__MINGW_IMPORT char* _tzname[2];
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#define _daylight _daylight_dll
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#define _timezone _timezone_dll
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#endif /* __DECLSPEC_SUPPORTED */
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#endif /* not __MSVCRT__ */
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#ifndef _NO_OLDNAMES
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#ifdef __MSVCRT__
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/* These go in the oldnames import library for MSVCRT. */
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__MINGW_IMPORT int daylight;
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__MINGW_IMPORT long timezone;
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__MINGW_IMPORT char *tzname[2];
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#else /* not __MSVCRT__ */
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/* CRTDLL is royally messed up when it comes to these macros.
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TODO: import and alias these via oldnames import library instead
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of macros. */
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#define daylight _daylight
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/* NOTE: timezone not defined because it would conflict with sys/timeb.h.
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Also, tzname used to a be macro, but now it's in moldname. */
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__MINGW_IMPORT char *tzname[2];
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#endif /* not __MSVCRT__ */
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#endif /* Not _NO_OLDNAMES */
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#endif /* Not __STRICT_ANSI__ */
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#ifndef __STRICT_ANSI__
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#ifndef _WTIME_DEFINED
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/* wide function prototypes, also declared in wchar.h */
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#ifdef __MSVCRT__
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_CRTIMP wchar_t* __cdecl _wasctime(const struct tm*);
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_CRTIMP wchar_t* __cdecl _wctime(const time_t*);
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_CRTIMP wchar_t* __cdecl _wstrdate(wchar_t*);
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_CRTIMP wchar_t* __cdecl _wstrtime(wchar_t*);
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#if __MSVCRT_VERSION__ >= 0x0601
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_CRTIMP wchar_t* __cdecl _wctime64 (const __time64_t*);
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#endif
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#endif /* __MSVCRT__ */
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_CRTIMP size_t __cdecl wcsftime (wchar_t*, size_t, const wchar_t*, const struct tm*);
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#define _WTIME_DEFINED
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#endif /* _WTIME_DEFINED */
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#endif /* __STRICT_ANSI__ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* Not RC_INVOKED */
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#endif /* Not _TIME_H_ */
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