--TEST-- General semaphore and shared memory test --SKIPIF-- <?php // vim600: ts=4 sw=4 syn=php fdm=marker if(!extension_loaded('sysvsem') || !extension_loaded('sysvshm')) { die("skip Both sysvsem and sysvshm required"); } ?> --INI-- magic_quotes_runtime=0 --FILE-- <?php $MEMSIZE = 512; // size of shared memory to allocate $SEMKEY = 1; // Semaphore key $SHMKEY = 2; // Shared memory key echo "Start.\n"; // Get semaphore $sem_id = sem_get($SEMKEY, 1); if ($sem_id === FALSE) { echo "Fail to get semaphore"; exit; } echo "Got semaphore $sem_id.\n"; // Accuire semaphore if (! sem_acquire($sem_id)) { echo "Fail to aquire semaphore $sem_id.\n"; sem_remove($sem_id); exit; } echo "Success aquire semaphore $sem_id.\n"; $shm_id = shm_attach($SHMKEY, $MEMSIZE); if ($shm_id === FALSE) { echo "Fail to attach shared memory.\n"; sem_remove($sem_id); exit; } echo "Success to attach shared memory : $shm_id.\n"; // Write variable 1 if (!shm_put_var($shm_id, 1, "Variable 1")) { echo "Fail to put var 1 on shared memory $shm_id.\n"; sem_remove($sem_id); shm_remove ($shm_id); exit; } echo "Write var1 to shared memory.\n"; // Write variable 2 if (!shm_put_var($shm_id, 2, "Variable 2")) { echo "Fail to put var 2 on shared memory $shm_id.\n"; sem_remove($sem_id); shm_remove ($shm_id); exit; } echo "Write var2 to shared memory.\n"; // Read variable 1 $var1 = shm_get_var ($shm_id, 1); if ($var1 === FALSE) { echo "Fail to retrieve Var 1 from Shared memory $shm_id, return value=$var1.\n"; } else { echo "Read var1=$var1.\n"; } // Read variable 1 $var2 = shm_get_var ($shm_id, 2); if ($var1 === FALSE) { echo "Fail to retrieve Var 2 from Shared memory $shm_id, return value=$var2.\n"; } else { echo "Read var2=$var2.\n"; } // Release semaphore if (!sem_release($sem_id)) { echo "Fail to release $sem_id semaphore.\n"; } else { echo "Semaphore $sem_id released.\n"; } // remove shared memory segmant from SysV if (shm_remove ($shm_id)) { echo "Shared memory successfully removed from SysV.\n"; } else { echo "Fail to remove $shm_id shared memory from SysV.\n"; } // Remove semaphore if (sem_remove($sem_id)) { echo "semaphore removed successfully from SysV.\n"; } else { echo "Fail to remove $sem_id semaphore from SysV.\n"; } echo "End.\n"; /* NOTE: assigned semids differ depending on the kernel, since * there are actually 3 semaphores per PHP-created * semaphores in effect, to keep state information. * That's the reason for EXPECTF. */ ?> --EXPECTF-- Start. Got semaphore Resource id #%i. Success aquire semaphore Resource id #%i. Success to attach shared memory : %i. Write var1 to shared memory. Write var2 to shared memory. Read var1=Variable 1. Read var2=Variable 2. Semaphore Resource id #%i released. Shared memory successfully removed from SysV. semaphore removed successfully from SysV. End.