31 lines
905 B
Factor
Executable File
31 lines
905 B
Factor
Executable File
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: concurrency.futures concurrency.count-downs sequences
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kernel ;
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IN: concurrency.combinators
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: (parallel-each) ( n quot -- )
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>r <count-down> r> keep await ; inline
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: parallel-each ( seq quot -- )
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over length [
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[ >r curry r> spawn-stage ] 2curry each
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] (parallel-each) ; inline
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: 2parallel-each ( seq1 seq2 quot -- )
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2over min-length [
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[ >r 2curry r> spawn-stage ] 2curry 2each
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] (parallel-each) ; inline
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: parallel-filter ( seq quot -- newseq )
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over >r pusher >r each r> r> like ; inline
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: future-values dup [ ?future ] change-each ; inline
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: parallel-map ( seq quot -- newseq )
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[ curry future ] curry map future-values ;
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inline
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: 2parallel-map ( seq1 seq2 quot -- newseq )
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[ 2curry future ] curry 2map future-values ;
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