,@body))
+(defmacro time-seconds (&body body)
+ (let ((t1 (gensym)))
+ `(let ((,t1 (get-internal-real-time)))
+ (values
+ (progn ,@body)
+ (coerce (/ (- (get-internal-real-time) ,t1)
+ internal-time-units-per-second)
+ 'double-float)))))
+
(defmacro time-iterations (n &body body)
(let ((i (gensym))
(count (gensym)))
(defun ,release-name (instance)
(kmrcl::with-lock-held (,lock-name)
(push instance ,cache-name))))))
+
+(defmacro with-ignore-errors (&rest forms)
+ `(progn
+ ,@(mapcar
+ (lambda (x) (list 'ignore-errors x))
+ forms)))
+
+(defmacro ppmx (form)
+ "Pretty prints the macro expansion of FORM."
+ `(let* ((exp1 (macroexpand-1 ',form))
+ (exp (macroexpand exp1))
+ (*print-circle* nil))
+ (cond ((equal exp exp1)
+ (format t "~&Macro expansion:")
+ (pprint exp))
+ (t (format t "~&First step of expansion:")
+ (pprint exp1)
+ (format t "~%~%Final expansion:")
+ (pprint exp)))
+ (format t "~%~%")
+ (values)))
+
+(defmacro defconstant* (sym value &optional doc)
+ "Ensure VALUE is evaluated only once."
+ `(defconstant ,sym (if (boundp ',sym)
+ (symbol-value ',sym)
+ ,value)
+ ,@(when doc (list doc))))
+
+(defmacro defvar-unbound (sym &optional (doc ""))
+ "defvar with a documentation string."
+ `(progn
+ (defvar ,sym)
+ (setf (documentation ',sym 'variable) ,doc)))
+