src/share/vm/memory/iterator.hpp

rev 12851 : 8138737: Remove oop_ms_adjust_pointers and use oop_iterate instead
Reviewed-by:
rev 12852 : [mq]: 8138737-remove-oop-ms-adjust-kbarrett-rev1
rev 12853 : [mq]: 8138737-remove-oop-ms-adjust-stefank-rev1

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 63,72 ****
--- 63,82 ----
    void set_ref_processor_internal(ReferenceProcessor* rp) { _ref_processor = rp; }
  
   public:
    ReferenceProcessor* ref_processor() const { return _ref_processor; }
  
+   // Iteration of InstanceRefKlasses differ depending on the closure,
+   // the below enum describes the different alternatives.
+   enum ReferenceIterationMode {
+     DO_DISCOVERY, // Apply closure and discover references
+     DO_FIELDS     // Apply closure to all fields
+   };
+ 
+   // The default iteration mode is to do discovery.
+   virtual ReferenceIterationMode reference_iteration_mode() { return DO_DISCOVERY; }
+ 
    // If the do_metadata functions return "true",
    // we invoke the following when running oop_iterate():
    //
    // 1) do_klass on the header klass pointer.
    // 2) do_klass on the klass pointer in the mirrors.