1.0.31.9: some PCL micro-optimizations

[sbcl.git] / src / pcl / macros.lisp

diff --git a/src/pcl/macros.lisp b/src/pcl/macros.lisp
index a9a657f..996e05f 100644 (file)
--- a/src/pcl/macros.lisp
+++ b/src/pcl/macros.lisp
@@ -110,10 +110,8 @@
 ;;; This DEFVAR was originally in defs.lisp, now moved here.
 ;;;
 ;;; Possible values are NIL, EARLY, BRAID, or COMPLETE.
-;;;
-;;; KLUDGE: This should probably become
-;;;   (DECLAIM (TYPE (MEMBER NIL :EARLY :BRAID :COMPLETE) *BOOT-STATE*))
-(defvar *boot-state* nil)
+(declaim (type (member nil early braid complete) **boot-state**))
+(defglobal **boot-state** nil)
 
 (/show "pcl/macros.lisp 187")
 
@@ -123,7 +121,7 @@
   (if (and (constantp symbol)
            (legal-class-name-p (setf symbol (constant-form-value symbol)))
            (constantp errorp)
-           (member *boot-state* '(braid complete)))
+           (member **boot-state** '(braid complete)))
       (let ((errorp (not (null (constant-form-value errorp))))
             (cell (make-symbol "CLASSOID-CELL")))
         `(let ((,cell (load-time-value (find-classoid-cell ',symbol :create t))))
@@ -144,19 +142,20 @@
          (with-single-package-locked-error
              (:symbol name "Using ~A as the class-name argument in ~
                            (SETF FIND-CLASS)"))
-         (let ((cell (find-classoid-cell name :create new-value)))
-           (cond (new-value
-                  (setf (classoid-cell-pcl-class cell) new-value)
-                  (when (eq *boot-state* 'complete)
-                    (let ((classoid (class-classoid new-value)))
-                      (setf (find-classoid name) classoid)
-                      (set-class-type-translation new-value classoid))))
-                 (cell
-                  (clear-classoid name cell)))
-           (when (or (eq *boot-state* 'complete)
-                     (eq *boot-state* 'braid))
-             (update-ctors 'setf-find-class :class new-value :name name))
-           new-value))
+         (with-world-lock ()
+           (let ((cell (find-classoid-cell name :create new-value)))
+             (cond (new-value
+                    (setf (classoid-cell-pcl-class cell) new-value)
+                    (when (eq **boot-state** 'complete)
+                      (let ((classoid (class-classoid new-value)))
+                        (setf (find-classoid name) classoid)
+                        (%set-class-type-translation new-value classoid))))
+                   (cell
+                    (%clear-classoid name cell)))
+             (when (or (eq **boot-state** 'complete)
+                       (eq **boot-state** 'braid))
+               (update-ctors 'setf-find-class :class new-value :name name))
+             new-value)))
         (t
          (error "~S is not a legal class name." name))))