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Timer

Timer-kind

Get the kind (tag) of a timer structure.

Signature
(timer-kind x) → kind
Arguments: x — Guard (timerp x).

Definitions and Theorems

Function: timer-kind$inline

(defun timer-kind$inline (x)
  (declare (xargs :guard (timerp x)))
  (let ((__function__ 'timer-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :running))
                       :running)
                      (t :expired))
         :exec (car x))))

Theorem: timer-kind-possibilities

(defthm timer-kind-possibilities
  (or (equal (timer-kind x) :running)
      (equal (timer-kind x) :expired))
  :rule-classes
  ((:forward-chaining :trigger-terms ((timer-kind x)))))