(define (s:log . msg)
  (apply session:log s:session msg))

(session:get-vars s:session)

(define (s:set-err . args)
  (sdat-set-curr-err s:session args))
  (sdat-set-curr-err! s:session args))

;; Usage: (s:get-err s:big)
(define (s:get-err wrapperfunc)
  (let ((errmsg (sdat-get-curr-err s:session)))
    (if errmsg ((if wrapperfunc
                    wrapperfunc
                    s:strong) errmsg) '())))