https://bugzilla.novell.com/show_bug.cgi?id=442475
User jsmeix@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=442475#c14
Johannes Meixner changed:
What |Removed |Added
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CC| |jsmeix@novell.com
--- Comment #14 from Johannes Meixner 2009-04-01 01:26:16 MDT ---
Only FYI what could help regarding comment #9:
"not be easy to solve ... code ... does not run in parallel to the UI"
The solution is to run code in parallel to the UI.
When I have to do something in the system
where I don't know if it will finish,
I call a bash script from YaST.
The reason is that at least for me it is easiest
via a bash script to work with several processes
so that a background process does the actual work
while the foreground process controls the worker-process.
After a timeout the foreground watchdog kills the worker.
See for example in the YaST printer and scanner modules
the bash scripts in /usr/lib/YaST2/bin/ which contain
a "MAXIMUM_WAIT" like
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#! /bin/bash
export PATH="/sbin:/usr/sbin:/usr/bin:/bin"
export LC_ALL="POSIX"
export LANG="POSIX"
umask 022
MAXIMUM_WAIT="10"
/run/the/worker/command &
PID=$!
for i in $( seq $MAXIMUM_WAIT )
do ps $PID &>/dev/null || break
sleep 1
done
if ps $PID &>/dev/null
then kill -9 $PID &>/dev/null
exit 1
fi
exit 0
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This way there is no longer an unlimited waiting
which mitigates the "Cancel button ineffective" issue
but clicking [Cancel] is still ignored (compare bug #489077)
until the timeout had happened and then
https://bugzilla.novell.com/show_bug.cgi?id=442173#c4
might happen.
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