public function read() { // should just call $this->len(), but copy-paste // here to reduce one function call since the logic // in len() is simple if (inotify_queue_len($this->inotify) < 1) { return false; } // should just call $this->wait(), but copy-paste // here to reduce one function call since the logic // in wait() is simple return inotify_read($this->inotify); }
<?php // Open an inotify instance $fd = inotify_init(); // Watch __FILE__ for metadata changes (e.g. mtime) $watch_descriptor = inotify_add_watch($fd, __FILE__, IN_ATTRIB); // generate an event touch(__FILE__); // Read events $events = inotify_read($fd); print_r($events); // The following methods allows to use inotify functions without blocking on inotify_read(): // - Using stream_select() on $fd: $read = array($fd); $write = null; $except = null; stream_select($read, $write, $except, 0); // - Using stream_set_blocking() on $fd stream_set_blocking($fd, 0); inotify_read($fd); // Does no block, and return false if no events are pending // - Using inotify_queue_len() to check if event queue is not empty $queue_len = inotify_queue_len($fd); // If > 0, inotify_read() will not block // Stop watching __FILE__ for metadata changes inotify_rm_watch($fd, $watch_descriptor); // Close the inotify instance // This may have closed all watches if this was not already done fclose($fd);