src/share/vm/runtime/thread.hpp

*** 437,447 ****
    }
  
    // GC support
    // Apply "f->do_oop" to all root oops in "this".
    // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames
!   void oops_do(OopClosure* f, CodeBlobClosure* cf);
  
    // Handles the parallel case for the method below.
  private:
    bool claim_oops_do_par_case(int collection_parity);
  public:
--- 437,447 ----
    }
  
    // GC support
    // Apply "f->do_oop" to all root oops in "this".
    // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames
!   virtual void oops_do(OopClosure* f, CodeBlobClosure* cf);
  
    // Handles the parallel case for the method below.
  private:
    bool claim_oops_do_par_case(int collection_parity);
  public:
*** 1696,1705 ****
--- 1696,1707 ----
    CompileLog*   _log;
    CompileTask*  _task;
    CompileQueue* _queue;
    BufferBlob*   _buffer_blob;
  
+   nmethod*      _scanned_nmethod;  // nmethod being scanned by the sweeper
+ 
   public:
  
    static CompilerThread* current();
  
    CompilerThread(CompileQueue* queue, CompilerCounters* counters);
*** 1724,1733 ****
--- 1726,1740 ----
      // Set once, for good.
      assert(_log == NULL, "set only once");
      _log = log;
    }
  
+   // GC support
+   // Apply "f->do_oop" to all root oops in "this".
+   // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames
+   void oops_do(OopClosure* f, CodeBlobClosure* cf);
+ 
  #ifndef PRODUCT
  private:
    IdealGraphPrinter *_ideal_graph_printer;
  public:
    IdealGraphPrinter *ideal_graph_printer()                       { return _ideal_graph_printer; }
*** 1735,1744 ****
--- 1742,1757 ----
  #endif
  
    // Get/set the thread's current task
    CompileTask*  task()                           { return _task; }
    void          set_task(CompileTask* task)      { _task = task; }
+ 
+   // Track the nmethod currently being scanned by the sweeper
+   void          set_scanned_nmethod(nmethod* nm) {
+     assert(_scanned_nmethod == NULL || nm == NULL, "should reset to NULL before writing a new value");
+     _scanned_nmethod = nm;
+   }
  };
  
  inline CompilerThread* CompilerThread::current() {
    return JavaThread::current()->as_CompilerThread();
  }