Re: Unix Question
- From: "Shawn Ferris" <shawn@xxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 26 May 2004 14:14:15 -0600 (MDT)
> The problem that Ryan has comes from trying to solve it with the wrong
> tool
.. snip .. snip ..
> Multithreading with threads communicating with each other is
> something that should be done by specialized scripting languages.
So.. if it can be done via korn shell.. does that promote it to a
specialized scripting language? This is very rudimentary, but should
suffice for the task at hand. Mladen is mostly correct, but IPC is a
sledge hammer if all that you want to do is fork some processes and figure
out their exit status. ksh can do this fine. 8D
Take this example:
#!/bin/ksh
( sleep 5; exit 2 ) &
p1=$!
( sleep 3; exit 1 ) &
p2=$!
( sleep 1; exit 0 ) &
p3=$!
wait $p2; echo "p2:$?"
wait $p1; echo "p1:$?"
wait $p3; echo "p3:$?"
This works for this example. But as Mladen suggests, Korn isn't the best
of tools for this. YMMV
Shawn
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