#33011 [Opn->Bgs]: shmop: can still open segment for reading after shmop_delete

ID: 33011 Updated by: tony2001@php.net Reported By: joe at bs0 dot com -Status: Open +Status: Bogus Bug Type: Semaphore related Operating System: windows xp PHP Version: 4.3.11, 5.0.4 New Comment: "The segment will only actually be destroyed after the last process detaches it (i.e., when the shm_nattch member of the associated structure shmid_ds is zero)." (c) man shmctl Also read user notes here: http://php.net/shmop_delete Previous Comments: ------------------------------------------------------------------------ [2005-05-12 04:33:53] joe at bs0 dot com Description: ------------ Tested with iis/php5.0.4, iis/php4.3.11, apache2/php4.3.11 - same problem. after a succesful call to shmop_delete, the shared memory can still be opened, and the previous values read in. Delete call seems to have no effect. Each step is done in new request: 1)Create shared memory block, populate with string. 2)open block, read in string 3)open block, call shmop_delete (returns true) 4)open block, read in string <- should not be able to open block for reading at this point. looks to be the same as Bug #28965, this bug has status of No Feedback, so opening a new one. Reproduce code: --------------- Code to reproduce: http://bs0.com/shmop/shmop_test.php.txt Expected result: ---------------- leave only one step uncommented at a time, at step 4, the open should fail and no data should be read in. Actual result: -------------- After step 4, memory is still opened/data is read in. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33011&edit=1