83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*
|
|
* ptw32_timespec.c
|
|
*
|
|
* Description:
|
|
* This translation unit implements routines which are private to
|
|
* the implementation and may be used throughout it.
|
|
*
|
|
* --------------------------------------------------------------------------
|
|
*
|
|
* Pthreads-win32 - POSIX Threads Library for Win32
|
|
* Copyright(C) 1998 John E. Bossom
|
|
* Copyright(C) 1999,2005 Pthreads-win32 contributors
|
|
*
|
|
* Contact Email: rpj@callisto.canberra.edu.au
|
|
*
|
|
* The current list of contributors is contained
|
|
* in the file CONTRIBUTORS included with the source
|
|
* code distribution. The list can also be seen at the
|
|
* following World Wide Web location:
|
|
* http://sources.redhat.com/pthreads-win32/contributors.html
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library in the file COPYING.LIB;
|
|
* if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include "pthread.h"
|
|
#include "implement.h"
|
|
|
|
|
|
#if defined(NEED_FTIME)
|
|
|
|
/*
|
|
* time between jan 1, 1601 and jan 1, 1970 in units of 100 nanoseconds
|
|
*/
|
|
#define PTW32_TIMESPEC_TO_FILETIME_OFFSET \
|
|
( ((int64_t) 27111902 << 32) + (int64_t) 3577643008 )
|
|
|
|
INLINE void
|
|
ptw32_timespec_to_filetime (const struct timespec *ts, FILETIME * ft)
|
|
/*
|
|
* -------------------------------------------------------------------
|
|
* converts struct timespec
|
|
* where the time is expressed in seconds and nanoseconds from Jan 1, 1970.
|
|
* into FILETIME (as set by GetSystemTimeAsFileTime), where the time is
|
|
* expressed in 100 nanoseconds from Jan 1, 1601,
|
|
* -------------------------------------------------------------------
|
|
*/
|
|
{
|
|
*(int64_t *) ft = ts->tv_sec * 10000000
|
|
+ (ts->tv_nsec + 50) / 100 + PTW32_TIMESPEC_TO_FILETIME_OFFSET;
|
|
}
|
|
|
|
INLINE void
|
|
ptw32_filetime_to_timespec (const FILETIME * ft, struct timespec *ts)
|
|
/*
|
|
* -------------------------------------------------------------------
|
|
* converts FILETIME (as set by GetSystemTimeAsFileTime), where the time is
|
|
* expressed in 100 nanoseconds from Jan 1, 1601,
|
|
* into struct timespec
|
|
* where the time is expressed in seconds and nanoseconds from Jan 1, 1970.
|
|
* -------------------------------------------------------------------
|
|
*/
|
|
{
|
|
ts->tv_sec =
|
|
(int) ((*(int64_t *) ft - PTW32_TIMESPEC_TO_FILETIME_OFFSET) / 10000000);
|
|
ts->tv_nsec =
|
|
(int) ((*(int64_t *) ft - PTW32_TIMESPEC_TO_FILETIME_OFFSET -
|
|
((int64_t) ts->tv_sec * (int64_t) 10000000)) * 100);
|
|
}
|
|
|
|
#endif /* NEED_FTIME */
|