49 lines
2.5 KiB
Factor
49 lines
2.5 KiB
Factor
USING: help.markup help.syntax sequences ;
|
|
IN: concurrency.combinators
|
|
|
|
HELP: parallel-map
|
|
{ $values { "seq" sequence } { "quot" { $quotation "( elt -- newelt )" } } { "newseq" sequence } }
|
|
{ $description "Spawns a new thread for applying " { $snippet "quot" } " to every element of " { $snippet "seq" } ", collecting the results at the end." }
|
|
{ $errors "Throws an error if one of the iterations throws an error." } ;
|
|
|
|
HELP: 2parallel-map
|
|
{ $values { "seq1" sequence } { "seq2" sequence } { "quot" { $quotation "( elt -- newelt )" } } { "newseq" sequence } }
|
|
{ $description "Spawns a new thread for applying " { $snippet "quot" } " to pairwise elements of " { $snippet "seq1" } " and " { $snippet "seq2" } ", collecting the results at the end." }
|
|
{ $errors "Throws an error if one of the iterations throws an error." } ;
|
|
|
|
HELP: parallel-each
|
|
{ $values { "seq" sequence } { "quot" { $quotation "( elt -- )" } } }
|
|
{ $description "Spawns a new thread for applying " { $snippet "quot" } " to every element of " { $snippet "seq" } ", blocking until all quotations complete." }
|
|
{ $errors "Throws an error if one of the iterations throws an error." } ;
|
|
|
|
HELP: 2parallel-each
|
|
{ $values { "seq1" sequence } { "seq2" sequence } { "quot" { $quotation "( elt -- )" } } }
|
|
{ $description "Spawns a new thread for applying " { $snippet "quot" } " to pairwise elements of " { $snippet "seq1" } " and " { $snippet "seq2" } ", blocking until all quotations complete." }
|
|
{ $errors "Throws an error if one of the iterations throws an error." } ;
|
|
|
|
HELP: parallel-filter
|
|
{ $values { "seq" sequence } { "quot" { $quotation "( elt -- ? )" } } { "newseq" sequence } }
|
|
{ $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." }
|
|
{ $errors "Throws an error if one of the iterations throws an error." } ;
|
|
|
|
ARTICLE: "concurrency.combinators" "Concurrent combinators"
|
|
"The " { $vocab-link "concurrency.combinators" } " vocabulary provides concurrent variants of various combinators."
|
|
$nl
|
|
"Concurrent sequence combinators:"
|
|
{ $subsections
|
|
parallel-each
|
|
2parallel-each
|
|
parallel-map
|
|
2parallel-map
|
|
parallel-filter
|
|
}
|
|
"Concurrent cleave combinators:"
|
|
{ $subsections
|
|
parallel-cleave
|
|
parallel-spread
|
|
parallel-napply
|
|
}
|
|
"The " { $vocab-link "concurrency.semaphores" } " vocabulary can be used in conjunction with the above combinators to limit the maximum number of concurrent operations." ;
|
|
|
|
ABOUT: "concurrency.combinators"
|