3.13

Windows/Time.h

@@ -0,0 +1,58 @@
+// Windows/Time.h
+
+#pragma once
+
+#ifndef __WINDOWS_TIME_H
+#define __WINDOWS_TIME_H
+
+#include "Common/Types.h"
+// #include <windows.h>
+// #include <time.h>
+#include "Windows/Defs.h"
+
+namespace NWindows {
+namespace NTime {
+
+inline bool DosTimeToFileTime(UINT32 dosTime, FILETIME &fileTime)
+{
+  return BOOLToBool(::DosDateTimeToFileTime(UINT16(dosTime >> 16), 
+      UINT16(dosTime & 0xFFFF), &fileTime));
+}
+
+inline bool FileTimeToDosTime(const FILETIME &fileTime, UINT32 &dosTime)
+{
+  return BOOLToBool(::FileTimeToDosDateTime(&fileTime, 
+      ((LPWORD)&dosTime) + 1, (LPWORD)&dosTime));
+}
+
+const UINT64 kUnixTimeStartValue = 
+      #if ( __GNUC__)
+      116444736000000000LL;
+      #else
+      116444736000000000;
+      #endif
+const UINT32 kNumTimeQuantumsInSecond = 10000000;
+
+inline void UnixTimeToFileTime(long unixTime, FILETIME &fileTime)
+{
+  ULONGLONG ll = UInt32x32To64(unixTime, kNumTimeQuantumsInSecond) + 
+      kUnixTimeStartValue;
+  fileTime.dwLowDateTime = (DWORD) ll;
+  fileTime.dwHighDateTime = DWORD(ll >> 32);
+}
+
+inline bool FileTimeToUnixTime(const FILETIME &fileTime, long &unixTime)
+{
+  UINT64 winTime = (((UINT64)fileTime.dwHighDateTime) << 32) + fileTime.dwLowDateTime;
+  if (winTime < kUnixTimeStartValue)
+    return false;
+  winTime = (winTime - kUnixTimeStartValue) / kNumTimeQuantumsInSecond;
+  if (winTime >= 0xFFFFFFFF)
+    return false;
+  unixTime = (long)winTime;
+  return true;
+}
+
+}}
+
+#endif