A poller is an object that watches an operating system file descriptor for you and tells you when it’s ready to be read or written to.
This class wraps a poller, responsible for notifying you of changes to a file descriptor.
It is an opaque object meant to be passed to free-poller.
(defmethod poller-freed-p ((poller poller))) => t/nil
This method lets us know if a poller has already been freed.
(defun poll (fd poll-cb &key event-cb (poll-for '(:readable :writable)) socket)) => poller
Starts polling the given
fd, calling the
poll-cb callback whenever the
is ready for the actions given in the list
:poll-for (allowed actions are
You can optionally pass an
:event-cb function, called when errors occur while
If you are polling an fd that’s a socket, you must pass
(defun free-poller (poller)) => nil
Stops the given poller and frees its resources.