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Re: FSGetCatalogInfo returns mod dates in a deprecated data type: UTCDateTime



You can manually convert the UTCDateTime to a double, then add kCFAbsoluteTimeIntervalSince1904 to get a CFAbsoluteTime. It'd look something like this:

 (double) utcdt.highSeconds * UINT32_MAX + utcdt.lowSeconds
  + (double) utcdt.fraction / UINT16_MAX + kCFAbsoluteTimeIntervalSince1904;

The Unix standard/portable option is to use stat() to get file times (use FSRefMakePath to get the Posix path from an FSRef). You can then use standard strftime/localtime_r/etc on the time_t you get if those APIs are adequate, or convert it manually to a double, add kCFAbsoluteTimeIntervalSince1970 and you have a CFAbsoluteTime.

               - Chris

João Varela wrote on 1/12/07 19:56 +0000:

Hello All

I have been using UTCDateTime extensively because I thought that was  the way
forward away from DateTimeRec but apparently that's not the  case anymore as
(almost) everything to do with UTCDateTime has become  deprecated in Tiger.
As I am at the moment modernizing my code base I  really want to move my code
to the recommended APIs (CFTimeZone,  CFCalendar, etc.) but the fact that
FSGetCatalogInfo still returns  mod and creation dates as UTCDateTime
variables prevents me from  getting rid of this data type from my code as I
need to retrieve this  information. Therefore, I have this question:

Is there a more modern way to retrieve a modification / creation date  of a
given file / directory other than FSGetCatalogInfo? If so,  please tell me
which, so that I can get rid of UTCDateTime. Or is  that slated for Leopard?

TIA

JV

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References: 
 >FSGetCatalogInfo returns mod dates in a deprecated data type: UTCDateTime (From: João Varela <email@hidden>)



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