(PECL inotify >= 0.1.2) Read events from an inotify instance

(PECL inotify >= 0.1.2) Add a watch to an initialized inotify instance

(PECL inotify >= 0.1.2) Return a number upper than zero if there are pending events

(PECL inotify >= 0.1.2) Initialize an inotify instance

(PECL inotify >= 0.1.2) Remove an existing watch from an inotify instance