37 lines
1.1 KiB
Factor
Executable File
37 lines
1.1 KiB
Factor
Executable File
! Copyright (C) 2007, 2008 Doug Coleman, Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: continuations destructors io.backend kernel quotations
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sequences system alien alien.accessors accessors
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sequences.private system vocabs.loader combinators ;
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IN: io.mmap
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TUPLE: mapped-file address handle length disposed ;
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M: mapped-file length dup check-disposed length>> ;
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M: mapped-file nth-unsafe
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dup check-disposed address>> swap alien-unsigned-1 ;
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M: mapped-file set-nth-unsafe
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dup check-disposed address>> swap set-alien-unsigned-1 ;
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INSTANCE: mapped-file sequence
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HOOK: (mapped-file) io-backend ( path length -- address handle )
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: <mapped-file> ( path length -- mmap )
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[ >r normalize-path r> (mapped-file) ] keep
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f mapped-file boa ;
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HOOK: close-mapped-file io-backend ( mmap -- )
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M: mapped-file dispose* ( mmap -- ) close-mapped-file ;
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: with-mapped-file ( path length quot -- )
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>r <mapped-file> r> with-disposal ; inline
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{
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{ [ os unix? ] [ "io.unix.mmap" require ] }
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{ [ os winnt? ] [ "io.windows.mmap" require ] }
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} cond
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