40 lines
1.2 KiB
Factor
40 lines
1.2 KiB
Factor
! Copyright (C) 2007 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: alien alien.c-types kernel math windows windows.kernel32
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namespaces calendar ;
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IN: windows.time
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: >64bit ( lo hi -- n )
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32 shift bitor ;
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: windows-1601 ( -- timestamp )
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1601 1 1 0 0 0 instant <timestamp> ;
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: FILETIME>windows-time ( FILETIME -- n )
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[ FILETIME-dwLowDateTime ] keep
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FILETIME-dwHighDateTime >64bit ;
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: windows-time>timestamp ( n -- timestamp )
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10000000 /i seconds windows-1601 swap time+ ;
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: windows-time ( -- n )
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"FILETIME" <c-object> [ GetSystemTimeAsFileTime ] keep
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FILETIME>windows-time ;
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: timestamp>windows-time ( timestamp -- n )
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#! 64bit number representing # of nanoseconds since Jan 1, 1601 (UTC)
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>gmt windows-1601 (time-) 10000000 * >integer ;
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: windows-time>FILETIME ( n -- FILETIME )
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"FILETIME" <c-object>
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[
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[ >r HEX: ffffffff bitand r> set-FILETIME-dwLowDateTime ] 2keep
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>r -32 shift r> set-FILETIME-dwHighDateTime
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] keep ;
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: timestamp>FILETIME ( timestamp -- FILETIME/f )
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[ >gmt timestamp>windows-time windows-time>FILETIME ] [ f ] if* ;
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: FILETIME>timestamp ( FILETIME -- timestamp/f )
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FILETIME>windows-time windows-time>timestamp ;
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