If you fork off the graphics rendering and watch in the parent, as you are considering, it is very easy to knock off the child with, 

kill 'INT', $cpid;
waitpid $cpid;

[download]
You set $cpid from the return value of fork or open in the parent.

After Compline,
Zaxo

In reply to Re: mod_perl, long running process and broken connections by Zaxo
in thread mod_perl, long running process and broken connections by glwtta

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