nativelibc/include/sys/time.h

/*	A part of the Native C Library for Windows NT
	Copyright 2007-2015 PC GO Ld.

	This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
*/

#ifndef _SYS_TIME_H
#define _SYS_TIME_H

#include <time.h>

#ifdef	__cplusplus
extern "C" {
#endif

#ifndef _TIMEVAL_DEFINED
#define _TIMEVAL_DEFINED
struct timeval {
	long tv_sec;
	long tv_usec;
};
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp) \
	(((tvp)->tv_sec != (uvp)->tv_sec) ? \
	((tvp)->tv_sec cmp (uvp)->tv_sec) : \
	((tvp)->tv_usec cmp (uvp)->tv_usec))
#define timerclear(tvp)	 (tvp)->tv_sec = (tvp)->tv_usec = 0
#endif /* _TIMEVAL_DEFINED */

/* Provided for compatibility with code that assumes that
   the presence of gettimeofday function implies a definition
   of struct timezone. */
struct timezone {
	int tz_minuteswest;		/* of Greenwich */
	int tz_dsttime;			/* type of dst correction to apply */
};

/*
   Implementation as per:
   The Open Group Base Specifications, Issue 6
   IEEE Std 1003.1, 2004 Edition

   The timezone pointer arg is ignored.  Errors are ignored.
*/
int __cdecl __MINGW_NOTHROW gettimeofday(struct timeval *__restrict__, struct timezone *__restrict__);
int __cdecl __MINGW_NOTHROW settimeofday(const struct timeval *__restrict__, const struct timezone *__restrict__);

int __cdecl __MINGW_NOTHROW utimes(const char *, const struct timeval *);


#if 0
#ifndef _WINNT_H
typedef struct _LARGE_INTEGER LARGE_INTEGER;
#endif
void __hurdred_nanoseconds_since_1601_to_timeval(const LARGE_INTEGER *, struct timeval *);
void __timeval_to_hurdred_nanoseconds_since_1601(const struct timeval *, LARGE_INTEGER *);
#else
#define __hurdred_nanoseconds_since_1601_to_timeval(li, tv) \
	do {								\
		unsigned long int _t;					\
		RtlTimeToSecondsSince1970((li), &_t);			\
		(tv)->tv_sec = _t;					\
		(tv)->tv_usec = ((li)->QuadPart / 10) % 1000000;	\
	} while(0)
#define __timeval_to_hurdred_nanoseconds_since_1601(tv, li) \
	do {							\
		(li)->QuadPart = (tv)->tv_sec * 1000000ULL;	\
		(li)->QuadPart += (tv)->tv_usec;		\
		(li)->QuadPart += 11644473600000000ULL;		\
		(li)->QuadPart *= 10;				\
	} while(0)
#endif

#define __hurdred_nanoseconds_since_1601_to_timespec(li, ts) \
	do {								\
		unsigned long int _t;					\
		RtlTimeToSecondsSince1970((li), &_t);			\
		(ts)->tv_sec = _t;					\
		(ts)->tv_nsec = ((li)->QuadPart % 10000000) * 100;	\
	} while(0)
#define __timespec_to_hurdred_nanoseconds_since_1601(ts, li) \
	do {							\
		(li)->QuadPart = (ts)->tv_nsec / 100;		\
		(li)->QuadPart += (ts)->tv_sec * 10000000ULL;	\
		(li)->QuadPart += 11644473600000000ULL * 10;	\
	} while(0)


#ifdef	__cplusplus
}
#endif

#endif