Variable: xscheme-running-p
xscheme-running-p is a buffer-local variable defined in xscheme.el.gz.
Documentation
This variable, if nil, indicates that the scheme process is waiting for input. Otherwise, it is busy evaluating something.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/xscheme.el.gz
(defvar-local xscheme-running-p nil
"This variable, if nil, indicates that the scheme process is
waiting for input. Otherwise, it is busy evaluating something.")