#18775 [Opn->Bgs]: Conflict with variables between father and child

ID: 18775 Updated by: jason@php.net Reported By: bariou@brasnah.com -Status: Open +Status: Bogus Bug Type: POSIX related Operating System: Linux PHP Version: 4.2.2 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Processes do not share memory, they are completly independant of each other. After the fork, a parent can not modify a childs memory area, and a child can not modify a parent's memory area. You either rethink your design, use shared memory, or use sockets for interprocess communication -Jason Previous Comments: ------------------------------------------------------------------------ [2002-08-07 05:40:02] bariou@brasnah.com I work with the pcntl extension and sockets, and I'm working on the developpement of a multiuser server. Several clients can connect limited to FD_SIZE. I start by a setup : //Setup of the sockets .... //Setup of the client array $i=0; while($i<FD_SETSIZE){ $client[$i]=null; $i++; } while(1){ Here the parent cheks connection $new_socket=socket_accept(main_socket); It accepts and puts the new socket ressource in the first free slot of the array client .... $client[$k]=$new_socket ..... if(!pcntl_fork){ Child here..... Manage the dialog its OK ! with several connection .... but when I shutdown a connection, exit is correct ... I need to remove the linked ressources from $client[$slot] and it is the same for the select array... So I do $client[$slot]=null; .... But It seems to fail, and each time the parent continues to see the allocate ressources, so it refuses more connexion, because $client[$slot] is not change from the parent point of view. }//En child }// Where I'm wrong, is there a bug for variables between parent and child ? Or maybe I make a confusion for the way to remove ressources from my client array (value or references) ? So, now I'm lost, Could somebody gives me some help about please ? I can send all the code if necessary ! Thanks for your help Marcel ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=18775&edit=1