src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp

rev 56811 : imported patch 8189737-heapregion-remove-space-inheritance

*** 31,48 ****
  #include "memory/virtualspace.hpp"
  #include "utilities/globalDefinitions.hpp"
  
  // Forward declarations
  class G1BlockOffsetTable;
! class G1ContiguousSpace;
  
  // This implementation of "G1BlockOffsetTable" divides the covered region
  // into "N"-word subregions (where "N" = 2^"LogN".  An array with an entry
  // for each such subregion indicates how far back one must go to find the
  // start of the chunk that includes the first word of the subregion.
  //
! // Each G1BlockOffsetTablePart is owned by a G1ContiguousSpace.
  
  class G1BlockOffsetTable: public CHeapObj<mtGC> {
    friend class G1BlockOffsetTablePart;
    friend class VMStructs;
  
--- 31,48 ----
  #include "memory/virtualspace.hpp"
  #include "utilities/globalDefinitions.hpp"
  
  // Forward declarations
  class G1BlockOffsetTable;
! class HeapRegion;
  
  // This implementation of "G1BlockOffsetTable" divides the covered region
  // into "N"-word subregions (where "N" = 2^"LogN".  An array with an entry
  // for each such subregion indicates how far back one must go to find the
  // start of the chunk that includes the first word of the subregion.
  //
! // Each G1BlockOffsetTablePart is owned by a HeapRegion.
  
  class G1BlockOffsetTable: public CHeapObj<mtGC> {
    friend class G1BlockOffsetTablePart;
    friend class VMStructs;
  
*** 118,129 ****
    debug_only(bool _object_can_span;)
  
    // This is the global BlockOffsetTable.
    G1BlockOffsetTable* _bot;
  
!   // The space that owns this subregion.
!   G1ContiguousSpace* _space;
  
    // Sets the entries
    // corresponding to the cards starting at "start" and ending at "end"
    // to point back to the card before "start": the interval [start, end)
    // is right-open.
--- 118,129 ----
    debug_only(bool _object_can_span;)
  
    // This is the global BlockOffsetTable.
    G1BlockOffsetTable* _bot;
  
!   // The region that owns this subregion.
!   HeapRegion* _hr;
  
    // Sets the entries
    // corresponding to the cards starting at "start" and ending at "end"
    // to point back to the card before "start": the interval [start, end)
    // is right-open.
*** 181,191 ****
  
    void check_all_cards(size_t left_card, size_t right_card) const;
  
  public:
    //  The elements of the array are initialized to zero.
!   G1BlockOffsetTablePart(G1BlockOffsetTable* array, G1ContiguousSpace* gsp);
  
    void verify() const;
  
    // Returns the address of the start of the block containing "addr", or
    // else "null" if it is covered by no block.  (May have side effects,
--- 181,191 ----
  
    void check_all_cards(size_t left_card, size_t right_card) const;
  
  public:
    //  The elements of the array are initialized to zero.
!   G1BlockOffsetTablePart(G1BlockOffsetTable* array, HeapRegion* hr);
  
    void verify() const;
  
    // Returns the address of the start of the block containing "addr", or
    // else "null" if it is covered by no block.  (May have side effects,