note 36073 deleted from function.flock by danbrown

Note Submitter: thanatos_101 at yahoo dot com ---- flock() is disabled in some linux kernels (2.4 in my case), it always returns success. i'm using sysv semaphores to compensate. notice : knowing how to use icps and icprm are essential to debugging semaphore stuff!!! simple example for an exclusive only lock thingy // obtain exclusive lock function lock ($filename) { // get semaphore key $sem_key = ftok($filename, 'LOCK'); // get semaphore identifier $sem_id = sem_get($sem_key, 1); // acquire semaphore lock sem_acquire($sem_id); // return sem_id return $sem_id; } // release lock function unlock($sem_id) { // release semaphore lock sem_release($sem_id); }