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I have a trace file that each transaction time represented in Windows filetime format. These time numbers are something like this:
Would you please let me know if there are any C/C++ library in Unix/Linux to extract actual time (specially second) from these numbers ? May I write my own extraction function ?
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get(file); BasicFileAttributes attr = Files. readAttributes(filepath,BasicFileAttributes. class); FileTime date = attr. creationTime(); DateFormat df = new SimpleDateFormat("MM/dd/yyyy"); String dateCreated = df.
Remarks. A Windows file time is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601 A.D. (C.E.) Coordinated Universal Time (UTC). Windows uses a file time to record when an application creates, accesses, or writes to a file.
it's quite simple: the windows epoch starts 1601-01-01T00:00:00Z. It's 11644473600 seconds before the UNIX/Linux epoch (1970-01-01T00:00:00Z). The Windows ticks are in 100 nanoseconds. Thus, a function to get seconds from the UNIX epoch will be as follows:
#define WINDOWS_TICK 10000000 #define SEC_TO_UNIX_EPOCH 11644473600LL unsigned WindowsTickToUnixSeconds(long long windowsTicks) { return (unsigned)(windowsTicks / WINDOWS_TICK - SEC_TO_UNIX_EPOCH); } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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