+ (block run-callback
+ (when (eq idle t)
+ (setq idle 0.001))
+ (cond (special
+ (setq gnus-demon-timers
+ (plist-put gnus-demon-timers func
+ (run-with-timer time time 'gnus-demon-run-callback
+ func idle time))))
+ ((and idle (> idle (gnus-demon-idle-since)))
+ (when time
+ (nnheader-cancel-timer (plist-get gnus-demon-timers func))
+ (setq gnus-demon-timers
+ (plist-put gnus-demon-timers func
+ (run-with-idle-timer idle nil
+ 'gnus-demon-run-callback
+ func idle time t))))
+ (return-from run-callback)))