38 lines
2.4 KiB
Factor
38 lines
2.4 KiB
Factor
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USING: help.markup help.syntax sequences ;
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IN: concurrency.combinators
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HELP: parallel-map
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{ $values { "seq" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt -- newelt )" } } { "newseq" sequence } }
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{ $description "Spawns a new thread for applying " { $snippet "quot" } " to every element of " { $snippet "seq" } ", collecting the results at the end." }
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{ $errors "Throws an error if one of the iterations throws an error." } ;
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HELP: 2parallel-map
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{ $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt -- newelt )" } } { "newseq" sequence } }
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{ $description "Spawns a new thread for applying " { $snippet "quot" } " to pairwise elements of " { $snippet "seq1" } " and " { $snippet "seq2" } ", collecting the results at the end." }
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{ $errors "Throws an error if one of the iterations throws an error." } ;
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HELP: parallel-each
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{ $values { "seq" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt -- )" } } }
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{ $description "Spawns a new thread for applying " { $snippet "quot" } " to every element of " { $snippet "seq" } ", blocking until all quotations complete." }
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{ $errors "Throws an error if one of the iterations throws an error." } ;
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HELP: 2parallel-each
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{ $values { "seq1" sequence } { "seq2" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt -- )" } } }
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{ $description "Spawns a new thread for applying " { $snippet "quot" } " to pairwise elements of " { $snippet "seq1" } " and " { $snippet "seq2" } ", blocking until all quotations complete." }
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{ $errors "Throws an error if one of the iterations throws an error." } ;
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HELP: parallel-filter
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{ $values { "seq" sequence } { "quot" "a quotation with stack effect " { $snippet "( elt -- ? )" } } { "newseq" sequence } }
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{ $description "Spawns a new thread for applying " { $snippet "quot" } " to every element of " { $snippet "seq" } ", collecting the elements for which the quotation yielded a true value." }
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{ $errors "Throws an error if one of the iterations throws an error." } ;
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ARTICLE: "concurrency.combinators" "Concurrent combinators"
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"The " { $vocab-link "concurrency.combinators" } " vocabulary provides concurrent variants of " { $link each } ", " { $link map } " and " { $link filter } ":"
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{ $subsection parallel-each }
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{ $subsection 2parallel-each }
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{ $subsection parallel-map }
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{ $subsection 2parallel-map }
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{ $subsection parallel-filter } ;
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ABOUT: "concurrency.combinators"
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