note 116663 added to function.sem-acquire

Unfortunately, PHP does not currently support non-blocking semaphores. If something like this is necessary you can utilize semaphores together with shared memory to create your own non-blocking lock mechanisms. Use a shared memory variable to mark whether or not a lock exists and then use a semaphore around operations against that variable. ---- Server IP: 72.52.91.14 Probable Submitter: 109.110.94.63 ---- Manual Page -- http://php.net/manual/en/function.sem-acquire.php Edit -- https://master.php.net/note/edit/116663 Del: integrated -- https://master.php.net/note/delete/116663/integrated Del: useless -- https://master.php.net/note/delete/116663/useless Del: bad code -- https://master.php.net/note/delete/116663/bad+code Del: spam -- https://master.php.net/note/delete/116663/spam Del: non-english -- https://master.php.net/note/delete/116663/non-english Del: in docs -- https://master.php.net/note/delete/116663/in+docs Del: other reasons-- https://master.php.net/note/delete/116663 Reject -- https://master.php.net/note/reject/116663 Search -- https://master.php.net/manage/user-notes.php