Causes execution to cease and become dormant for approximately the seconds of real time indicated by seconds, whereupon execution is resumed.
;;; Actually, since SLEEP is permitted to use approximate timing, this might not always ;;; yield true, but it will often enough that we felt it to be a productive example of the intent. (let ((then (get-universal-time)) (now (progn (sleep 10) (get-universal-time)))) (>= (- now then) 10))
Causes processing to pause.
The granularity of the scheduler.
Should signal an error of type type-error if seconds is not a non-negative real.