other-licenses/7zstub/src/Windows/Time.h@b8a032363ba2 (annotated)
other-licenses/7zstub/src/Windows/Time.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Windows/Time.h |
| michael@0 | 2 | |
| michael@0 | 3 | #ifndef __WINDOWS_TIME_H |
| michael@0 | 4 | #define __WINDOWS_TIME_H |
| michael@0 | 5 | |
| michael@0 | 6 | #include "Common/Types.h" |
| michael@0 | 7 | #include "Windows/Defs.h" |
| michael@0 | 8 | |
| michael@0 | 9 | namespace NWindows { |
| michael@0 | 10 | namespace NTime { |
| michael@0 | 11 | |
| michael@0 | 12 | inline bool DosTimeToFileTime(UInt32 dosTime, FILETIME &fileTime) |
| michael@0 | 13 | { |
| michael@0 | 14 | return BOOLToBool(::DosDateTimeToFileTime(UInt16(dosTime >> 16), |
| michael@0 | 15 | UInt16(dosTime & 0xFFFF), &fileTime)); |
| michael@0 | 16 | } |
| michael@0 | 17 | |
| michael@0 | 18 | const UInt32 kHighDosTime = 0xFF9FBF7D; |
| michael@0 | 19 | const UInt32 kLowDosTime = 0x210000; |
| michael@0 | 20 | |
| michael@0 | 21 | inline bool FileTimeToDosTime(const FILETIME &fileTime, UInt32 &dosTime) |
| michael@0 | 22 | { |
| michael@0 | 23 | WORD datePart, timePart; |
| michael@0 | 24 | if (!::FileTimeToDosDateTime(&fileTime, &datePart, &timePart)) |
| michael@0 | 25 | { |
| michael@0 | 26 | if (fileTime.dwHighDateTime >= 0x01C00000) // 2000 |
| michael@0 | 27 | dosTime = kHighDosTime; |
| michael@0 | 28 | else |
| michael@0 | 29 | dosTime = kLowDosTime; |
| michael@0 | 30 | return false; |
| michael@0 | 31 | } |
| michael@0 | 32 | dosTime = (((UInt32)datePart) << 16) + timePart; |
| michael@0 | 33 | return true; |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | const UInt32 kNumTimeQuantumsInSecond = 10000000; |
| michael@0 | 37 | const UInt64 kUnixTimeStartValue = ((UInt64)kNumTimeQuantumsInSecond) * 60 * 60 * 24 * 134774; |
| michael@0 | 38 | |
| michael@0 | 39 | inline void UnixTimeToFileTime(UInt32 unixTime, FILETIME &fileTime) |
| michael@0 | 40 | { |
| michael@0 | 41 | UInt64 v = kUnixTimeStartValue + ((UInt64)unixTime) * kNumTimeQuantumsInSecond; |
| michael@0 | 42 | fileTime.dwLowDateTime = (DWORD)v; |
| michael@0 | 43 | fileTime.dwHighDateTime = (DWORD)(v >> 32); |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | inline bool FileTimeToUnixTime(const FILETIME &fileTime, UInt32 &unixTime) |
| michael@0 | 47 | { |
| michael@0 | 48 | UInt64 winTime = (((UInt64)fileTime.dwHighDateTime) << 32) + fileTime.dwLowDateTime; |
| michael@0 | 49 | if (winTime < kUnixTimeStartValue) |
| michael@0 | 50 | { |
| michael@0 | 51 | unixTime = 0; |
| michael@0 | 52 | return false; |
| michael@0 | 53 | } |
| michael@0 | 54 | winTime = (winTime - kUnixTimeStartValue) / kNumTimeQuantumsInSecond; |
| michael@0 | 55 | if (winTime > 0xFFFFFFFF) |
| michael@0 | 56 | { |
| michael@0 | 57 | unixTime = 0xFFFFFFFF; |
| michael@0 | 58 | return false; |
| michael@0 | 59 | } |
| michael@0 | 60 | unixTime = (UInt32)winTime; |
| michael@0 | 61 | return true; |
| michael@0 | 62 | } |
| michael@0 | 63 | |
| michael@0 | 64 | }} |
| michael@0 | 65 | |
| michael@0 | 66 | #endif |
