OpenFPGA/libs/EXTERNAL/tcl8.6.12/tests/unixForkEvent.test

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# This file contains a collection of tests for the procedures in the file
# tclUnixNotify.c. Sourcing this file into Tcl runs the tests and
# generates output for errors. No output means no errors were found.
#
# Copyright (c) 1995-1997 Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
package require tcltest 2.5
namespace import -force ::tcltest::*
testConstraint testfork [llength [info commands testfork]]
# Test if the notifier thread is well initialized in a forked interpreter
# by Tcl_InitNotifier
test unixforkevent-1.1 {fork and test writeable event} \
-constraints {testfork nonPortable} \
-body {
set myFolder [makeDirectory unixtestfork]
set pid [testfork]
if {$pid == 0} {
# we are the forked process
set result initialized
set h [open [file join $myFolder test.txt] w]
fileevent $h writable\
"set result writable;\
after cancel [after 1000 {set result timeout}]"
vwait result
close $h
makeFile $result result.txt $myFolder
exit
}
# we are the original process
while {![file readable [file join $myFolder result.txt]]} {}
viewFile result.txt $myFolder
} \
-result {writable} \
-cleanup {
catch { removeFolder $myFolder }
}
::tcltest::cleanupTests
return