- (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)))