- cancel-timer-task! TASKprocedure
Cancels the TASK (must be a reference obtained from register-timer-task!). (In fact it atomically sets the cdr of the reference to #f and returns the old value.)
Returns #f if the TASK was already canceled or fired.
Cancels the TASK (must be a reference obtained from register-timer-task!). (In fact it atomically sets the cdr of the reference to #f and returns the old value.)
Returns #f if the TASK was already canceled or fired.