70 lines
2.4 KiB
Factor
70 lines
2.4 KiB
Factor
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!:folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2003 Slava Pestov.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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IN: threads
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USE: combinators
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USE: continuations
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USE: kernel
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USE: stack
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: <thread> ( runnable -- thread )
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[ "java.lang.Runnable" ] "java.lang.Thread" jnew ;
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: current-thread ( -- thread )
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[ ] "java.lang.Thread" "currentThread" jinvoke-static ;
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: start-thread ( thread -- )
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[ ] "java.lang.Thread" "start" jinvoke ;
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: clone-interpreter ( interp1 interp2 -- )
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#! Copy the state of interp1 into interp2.
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[ "factor.FactorInterpreter" ]
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"factor.FactorInterpreter"
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"init" jinvoke ;
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: <interpreter> ( -- interpreter )
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#! Clone the current interpreter. Note that it will be
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#! pointing to exactly the same point of execution!
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[ ] "factor.FactorInterpreter" jnew ;
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: fork* ( current new -- thread )
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dup <thread> [ clone-interpreter ] dip ; interpret-only
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: fork ( -- ? )
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#! Spawn a new thread. In the original thread, push f.
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#! In the new thread, push t.
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interpreter <interpreter> fork* dup current-thread = [
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drop t
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] [
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start-thread f
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] ifte ; interpret-only
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: in-thread ( quot -- )
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#! Execute a quotation in a new thread.
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fork [ call toplevel ] [ drop ] ifte ; interpret-only
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