66 lines
1.9 KiB
Factor
66 lines
1.9 KiB
Factor
|
! :folding=none:collapseFolds=1:
|
||
|
|
|
||
|
|
! $Id$
|
||
|
|
!
|
||
|
|
! Copyright (C) 2004 Slava Pestov.
|
||
|
|
!
|
||
|
|
! Redistribution and use in source and binary forms, with or without
|
||
|
|
! modification, are permitted provided that the following conditions are met:
|
||
|
|
!
|
||
|
|
! 1. Redistributions of source code must retain the above copyright notice,
|
||
|
|
! this list of conditions and the following disclaimer.
|
||
|
|
!
|
||
|
|
! 2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
! this list of conditions and the following disclaimer in the documentation
|
||
|
|
! and/or other materials provided with the distribution.
|
||
|
|
!
|
||
|
|
! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
||
|
|
! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
||
|
|
! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||
|
|
! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||
|
|
! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
||
|
|
! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||
|
|
! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
||
|
|
! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
||
|
|
! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
IN: threads
|
||
|
|
USE: combinators
|
||
|
|
USE: continuations
|
||
|
|
USE: io-internals
|
||
|
|
USE: kernel
|
||
|
|
USE: lists
|
||
|
|
USE: namespaces
|
||
|
|
USE: stack
|
||
|
|
USE: strings
|
||
|
|
|
||
|
|
: run-queue ( -- queue )
|
||
|
|
9 getenv ;
|
||
|
|
|
||
|
|
: set-run-queue ( queue -- )
|
||
|
|
9 setenv ;
|
||
|
|
|
||
|
|
: init-threads ( -- )
|
||
|
|
f set-run-queue ;
|
||
|
|
|
||
|
|
: next-thread ( -- quot )
|
||
|
|
run-queue dup [ uncons set-run-queue ] when ;
|
||
|
|
|
||
|
|
: schedule-thread ( quot -- )
|
||
|
|
run-queue cons set-run-queue ;
|
||
|
|
|
||
|
|
: yield ( -- )
|
||
|
|
next-thread dup [
|
||
|
|
call
|
||
|
|
] [
|
||
|
|
drop next-io-task dup [
|
||
|
|
call
|
||
|
|
] [
|
||
|
|
drop yield
|
||
|
|
] ifte
|
||
|
|
] ifte ;
|
||
|
|
|
||
|
|
: in-thread ( quot -- )
|
||
|
|
[ schedule-thread call yield ] callcc0 drop ;
|