[plt-scheme] file locking, or appending an email to a mbox file

From: A. Ozmen (aoz at dmailman.com)
Date: Tue May 13 15:04:44 EDT 2003


I am trying to write a function to append an email to a mbox
file. How can I prevent multiple programs, or threads in the same
program, modifying the same mbox file?

Thank you.
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