note 113540 added to function.sem-remove

sem_remove() shouldn't be part of a normal cleanup/teardown and should be called very rarely due to bugs in the implementation. It doesn't seem to hurt to leave semaphores lying around and is likely to be more performance-friendly to do so. If you are concerned about having too many semaphores floating around for an application (e.g. a file cache that uses ftok()), you can use some modulus arithmetic and simple addition to create a limited range of values for your semaphores off in the middle of nowhere. For example, ftok() % 101 + 0xBADBEEF. Be sure to replace 0xBADBEEF with your own random value. The example limits the range to 101 semaphores. 101 is a prime number - so if you want more or less, be sure to replace it with a prime number since primes theoretically help distribute values more evenly. ---- Server IP: 72.52.91.14 Probable Submitter: 72.52.91.14 ---- Manual Page -- http://php.net/manual/en/function.sem-remove.php Edit -- https://master.php.net/note/edit/113540 Del: integrated -- https://master.php.net/note/delete/113540/integrated Del: useless -- https://master.php.net/note/delete/113540/useless Del: bad code -- https://master.php.net/note/delete/113540/bad+code Del: spam -- https://master.php.net/note/delete/113540/spam Del: non-english -- https://master.php.net/note/delete/113540/non-english Del: in docs -- https://master.php.net/note/delete/113540/in+docs Del: other reasons-- https://master.php.net/note/delete/113540 Reject -- https://master.php.net/note/reject/113540 Search -- https://master.php.net/manage/user-notes.php