1 files changed, 83 insertions, 0 deletions
diff --git a/libs/pthreads/src/ptw32_timespec.c b/libs/pthreads/src/ptw32_timespec.c
new file mode 100644
index 0000000000..6318957a89
--- /dev/null
+++ b/libs/pthreads/src/ptw32_timespec.c
@@ -0,0 +1,83 @@
+/*
+ * 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.,
+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 */