for each message of a 2000 message mbox the file will have to be copied 2000 times.
What if the delete operation locked the file and queued the delete for a background thread, which would kick off in, oh let's say 1 second? The delete thread would run through the deletion list, and then unlock the file. In the common case where there is either a single delete, or when POP3 deletes a whole series at once (when the POP3 session finishes), the mailbox could do all of the deletes in a single pass, sorted by position within the file.
As I understand how some POP3 implementations work, when you delete a file, it doesn't actually delete the message until the POP3 session ends. The POP3 mailbox is locked for the scope of a POP3 session, otherwise the message number would change.
-- Serge Knystautas President Lokitech >> software . strategy . design >> http://www.lokitech.com/ p. 1.301.656.5501 e. [EMAIL PROTECTED]
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