:accessor update-queue
:initform (locked-queue:create)
:documentation "Updates to be sent to the browser")
+ (update-thread
+ :accessor update-thread
+ :initform nil
+ :documentation "COMET thread waiting for updates of non-NIL")
(connection
:accessor connection
:documentation "Connection to the empire game server")))
(defun update ()
"Send stream of updates to client"
(with-session
- (locked-queue:dequeue (update-queue *empire-session*))))
+ (when (update-thread *empire-session*)
+ (empire-log:info "~a: Killing update thread ~a." *empire-session* (update-thread *empire-session*))
+ (sb-thread:terminate-thread (update-thread *empire-session*)))
+ (setf (update-thread *empire-session*) sb-thread:*current-thread*)
+ (let ((next-update (locked-queue:dequeue (update-queue *empire-session*))))
+ (setf (update-thread *empire-session*) nil)
+ next-update)))
(defmethod send ((s session) string)
"Push a javascript update fragment to the client."