| Next | The Perl Hardware Store | DC.pm Version | 27 |
On some systems, you can't LOCK_EX a file that is only open for reading
Solution: Open the semaphore file for writing and LOCK_EX it instead
How do you lock an entire directory at once?
Solution: Lock a semaphore file instead
Processes deadlock when locking several files in sequence
Solution: Represent the entire group with a single semaphore
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