+ (allow-with-interrupts (%call-with-system-mutex))))))
+
+ (defun call-with-system-spinlock (function spinlock &optional without-gcing-p)
+ (declare (function function))
+ (flet ((%call-with-system-spinlock ()
+ (dx-let (got-it)
+ (unwind-protect
+ (when (setf got-it (get-spinlock spinlock))
+ (funcall function))
+ (when got-it
+ (release-spinlock spinlock))))))
+ (if without-gcing-p
+ (without-gcing
+ (%call-with-system-spinlock))
+ (without-interrupts
+ (allow-with-interrupts (%call-with-system-spinlock))))))