nativelibc/include/time.h

/* 
 * time.h
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is a part of the mingw-runtime package.
 * No warranty is given; refer to the file DISCLAIMER within the package.
 *
 * Date and time functions and types.
 *
 */

#ifndef	_TIME_H
#define	_TIME_H

/* All the headers include this file. */
#include <_mingw.h>

#define __need_wchar_t
#define __need_size_t
#define __need_NULL
#include <stddef.h>
#include <sys/types.h>

/*
 * Number of clock ticks per second. A clock tick is the unit by which
 * processor time is measured and is returned by 'clock'.
 */
#define CLOCKS_PER_SEC ((clock_t)1000)
#define CLK_TCK CLOCKS_PER_SEC

/*
 * A type for measuring processor time (in clock ticks).
 */
#ifndef _CLOCK_T_DEFINED
typedef long clock_t;
#define _CLOCK_T_DEFINED
#endif

#ifndef _TM_DEFINED
/*
 * A structure for storing all kinds of useful information about the
 * current (or another) time.
 */
struct tm {
	int tm_sec;		/* Seconds: 0-59 (K&R says 0-61?) */
	int tm_min;		/* Minutes: 0-59 */
	int tm_hour;		/* Hours since midnight: 0-23 */
	int tm_mday;		/* Day of the month: 1-31 */
	int tm_mon;		/* Months *since* january: 0-11 */
	int tm_year;		/* Years since 1900 */
	int tm_wday;		/* Days since Sunday (0-6) */
	int tm_yday;		/* Days since Jan. 1: 0-365 */
	int tm_isdst;		/* +1 Daylight Savings Time, 0 No DST,
				 * -1 don't know */
};
#define _TM_DEFINED
#endif

struct timespec {
	time_t tv_sec;			// Seconds.
	long int tv_nsec;		// Nanoseconds.
};

#ifdef	__cplusplus
extern "C" {
#endif

clock_t __cdecl __MINGW_NOTHROW clock(void);
time_t __cdecl __MINGW_NOTHROW time(time_t *);
double __cdecl __MINGW_NOTHROW difftime(time_t, time_t);
time_t __cdecl __MINGW_NOTHROW mktime(struct tm *);

/*
 * These functions write to and return pointers to static buffers that may
 * be overwritten by other function calls. Yikes! Using *_r versions to
 * avoid it.
 */
char *__cdecl __MINGW_NOTHROW asctime(const struct tm *);
char *__cdecl __MINGW_NOTHROW asctime_r(const struct tm *, char *);
char *__cdecl __MINGW_NOTHROW ctime(const time_t *);
char *__cdecl __MINGW_NOTHROW ctime_r(const time_t *, char *);
struct tm *__cdecl __MINGW_NOTHROW gmtime(const time_t *);
struct tm *__cdecl __MINGW_NOTHROW gmtime_r(const time_t *, struct tm *);
struct tm *__cdecl __MINGW_NOTHROW localtime(const time_t *);
struct tm *__cdecl __MINGW_NOTHROW localtime_r(const time_t *, struct tm *);

size_t __cdecl __MINGW_NOTHROW strftime(char *, size_t, const char *, const struct tm *);
char *__cdecl __MINGW_NOTHROW strptime(const char *, const char *, const struct tm *);

void __cdecl __MINGW_NOTHROW tzset(void);

/*
 * daylight: non zero if daylight savings time is used.
 * timezone: difference in seconds between GMT and local time.
 * tzname: standard/daylight savings time zone names (an array with two
 * 	elements).
 */
extern int daylight;
extern long timezone;
extern char *tzname[2];

/* Nonzero if YEAR is a leap year (every 4 years,
   except every 100th isn't, and every 400th is).  */
# define __isleap(year) ((year)%4 == 0 && ((year)%100 || (year)%400 == 0))

#define CLOCK_REALTIME 0
#define CLOCK_MONOTONIC 1

int clock_gettime(clockid_t, struct timespec *);
int clock_settime(clockid_t, const struct timespec *);

#ifdef	__cplusplus
}
#endif

#endif