src/share/vm/gc_implementation/g1/concurrentMark.hpp

rev 6672 : imported patch bengt-fixes2

*** 734,743 ****
--- 734,746 ----
                         VerifyOption vo, bool all) PRODUCT_RETURN;
  
    // Clear the next marking bitmap (will be called concurrently).
    void clearNextBitmap();
  
+   // Return whether the next mark bitmap has no marks set.
+   bool nextMarkBitmapIsClear();
+ 
    // These two do the work that needs to be done before and after the
    // initial root checkpoint. Since this checkpoint can be done at two
    // different points (i.e. an explicit pause or piggy-backed on a
    // young collection), then it's nice to be able to easily share the
    // pre/post code. It might be the case that we can put everything in