/usr/share/gnu-smalltalk/unsupported/Interr.st is in gnu-smalltalk-common 3.2.4-2.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | "======================================================================
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| Test interrupt handling
|
|
======================================================================"
"======================================================================
|
| Copyright 1988-92, 1994-95, 1999, 2000, 2005 Free Software Foundation, Inc.
| Written by Steve Byrne.
|
| This file is part of GNU Smalltalk.
|
| GNU Smalltalk is free software; you can redistribute it and/or modify it
| under the terms of the GNU General Public License as published by the Free
| Software Foundation; either version 2, or (at your option) any later version.
|
| GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
| FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
| details.
|
| You should have received a copy of the GNU General Public License along with
| GNU Smalltalk; see the file COPYING. If not, write to the Free Software
| Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
======================================================================"
DLD addLibrary: 'libc'!
SystemDictionary defineCFunc: 'fcntl'
withSelectorArgs: 'fcntl: fd cmd: cmd arg: arg'
returning: #int
args: #(#int #int #int)!
| mask |
mask := (Smalltalk fcntl: 0 cmd: 3 arg: 0).
mask := mask bitOr: 16r40.
Smalltalk fcntl: 0 cmd: 4 arg: mask.
!
| sem |
sem := Semaphore new.
Processor signal: sem onInterrupt: 23.
[ [ sem wait. stdin next printNl.
'running' printNl. Processor yield. true ] whileTrue ] fork.
[ Processor yield. true ] whileTrue.
'back from yielding' printNl.
!
|