factor/basis/io/backend/unix/multiplexers/multiplexers.factor

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Factor

! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel accessors assocs sequences threads ;
IN: io.backend.unix.multiplexers
TUPLE: mx fd reads writes ;
: new-mx ( class -- obj )
new
H{ } clone >>reads
H{ } clone >>writes ; inline
GENERIC: add-input-callback ( thread fd mx -- )
M: mx add-input-callback reads>> push-at ;
GENERIC: add-output-callback ( thread fd mx -- )
M: mx add-output-callback writes>> push-at ;
GENERIC: remove-input-callbacks ( fd mx -- callbacks )
M: mx remove-input-callbacks reads>> delete-at* drop ;
GENERIC: remove-output-callbacks ( fd mx -- callbacks )
M: mx remove-output-callbacks writes>> delete-at* drop ;
GENERIC: wait-for-events ( ms mx -- )
: input-available ( fd mx -- )
reads>> delete-at* drop [ resume ] each ;
: output-available ( fd mx -- )
writes>> delete-at* drop [ resume ] each ;