usbloadergx/source/libntfs/ntfstime.h
dimok321 64f8406b07 *Mem2 fix
*updated libntfs (write fix)
*updated libfat
*lots of changes in the startup code, removed almost everything. This might cause problems for some drives at loading the gamelist and needs to be adjusted later but better this time. more cleanup is needed in main.cpp and will come.
*using libogc sd/usb for config loading and reload to cIOS afterwards
*added missing boothomebrew stuff pune forgot

NOTE: From now on we will be doing a lot of revs which we won't be compiling and releasing. This revs are officially not available for public so don't making issues regarding those revs. Those will be closed right away. We need first to cleanup a lot of crap and update loader to new standards before releasing stuff again.
2010-09-16 19:59:41 +00:00

122 lines
3.6 KiB
C

/*
* ntfstime.h - NTFS time related functions. Originated from the Linux-NTFS project.
*
* Copyright (c) 2005 Anton Altaparmakov
* Copyright (c) 2005 Yura Pakhuchiy
* Copyright (c) 2010 Jean-Pierre Andre
*
* This program/include file 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/include file 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.
*
* You should have received a copy of the GNU General Public License
* along with this program (in the main directory of the NTFS-3G
* distribution in the file COPYING); if not, write to the Free Software
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _NTFS_NTFSTIME_H
#define _NTFS_NTFSTIME_H
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_GETTIMEOFDAY
#include <sys/time.h>
#endif
#include "types.h"
/*
* There are four times more conversions of internal representation
* to ntfs representation than any other conversion, so the most
* efficient internal representation is ntfs representation
* (with low endianness)
*/
typedef sle64 ntfs_time;
#define NTFS_TIME_OFFSET ((s64)(369 * 365 + 89) * 24 * 3600 * 10000000)
/**
* ntfs2timespec - Convert an NTFS time to Unix time
* @ntfs_time: An NTFS time in 100ns units since 1601
*
* NTFS stores times as the number of 100ns intervals since January 1st 1601 at
* 00:00 UTC. This system will not suffer from Y2K problems until ~57000AD.
*
* Return: A Unix time (number of seconds since 1970, and nanoseconds)
*/
static __inline__ struct timespec ntfs2timespec(ntfs_time ntfstime)
{
struct timespec spec;
s64 cputime;
cputime = sle64_to_cpu(ntfstime);
spec.tv_sec = (cputime - (NTFS_TIME_OFFSET)) / 10000000;
spec.tv_nsec = (cputime - (NTFS_TIME_OFFSET)
- (s64)spec.tv_sec*10000000)*100;
/* force zero nsec for overflowing dates */
if ((spec.tv_nsec < 0) || (spec.tv_nsec > 999999999))
spec.tv_nsec = 0;
return (spec);
}
/**
* timespec2ntfs - Convert Linux time to NTFS time
* @utc_time: Linux time to convert to NTFS
*
* Convert the Linux time @utc_time to its corresponding NTFS time.
*
* Linux stores time in a long at present and measures it as the number of
* 1-second intervals since 1st January 1970, 00:00:00 UTC
* with a separated non-negative nanosecond value
*
* NTFS uses Microsoft's standard time format which is stored in a sle64 and is
* measured as the number of 100 nano-second intervals since 1st January 1601,
* 00:00:00 UTC.
*
* Return: An NTFS time (100ns units since Jan 1601)
*/
static __inline__ ntfs_time timespec2ntfs(struct timespec spec)
{
s64 units;
units = (s64)spec.tv_sec * 10000000
+ NTFS_TIME_OFFSET + spec.tv_nsec/100;
return (cpu_to_le64(units));
}
/*
* Return the current time in ntfs format
*/
static __inline__ ntfs_time ntfs_current_time(void)
{
struct timespec now;
#if defined(HAVE_CLOCK_GETTIME) || defined(HAVE_SYS_CLOCK_GETTIME)
clock_gettime(CLOCK_REALTIME, &now);
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval microseconds;
gettimeofday(&microseconds, (struct timezone*)NULL);
now.tv_sec = microseconds.tv_sec;
now.tv_nsec = microseconds.tv_usec*1000;
#else
now.tv_sec = time((time_t*)NULL);
now.tv_nsec = 0;
#endif
return (timespec2ntfs(now));
}
#endif /* _NTFS_NTFSTIME_H */