note
Corion
<p>Now is a good time to review [mod://perlipc].</p>
<p>The only way to modify values within a Perl process is to do it within that one Perl process. Either you use [mod://threads], or you set up an API to do that modification for you.</p>
<p>There are other approaches, like shared memory or debuggers, but until you've understood the limitations of IPC, it doesn't make sense to bring out the heavy guns.</p>
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