src/hotspot/share/gc/g1/g1Allocator.hpp

rev 57551 : imported patch 8214277-merge-open-closed-archive-map

*** 1,7 ****
  /*
!  * Copyright (c) 2014, 2019, 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) 2014, 2020, 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.
*** 201,216 ****
                              uint node_index);
  
    void undo_allocation(G1HeapRegionAttr dest, HeapWord* obj, size_t word_sz, uint node_index);
  };
  
! // G1ArchiveRegionMap is a boolean array used to mark G1 regions as
  // archive regions.  This allows a quick check for whether an object
  // should not be marked because it is in an archive region.
! class G1ArchiveRegionMap : public G1BiasedMappedArray<bool> {
  protected:
!   bool default_value() const { return false; }
  };
  
  // G1ArchiveAllocator is used to allocate memory in archive
  // regions. Such regions are not scavenged nor compacted by GC.
  // There are two types of archive regions, which are
--- 201,221 ----
                              uint node_index);
  
    void undo_allocation(G1HeapRegionAttr dest, HeapWord* obj, size_t word_sz, uint node_index);
  };
  
! // G1ArchiveRegionMap is an array used to mark G1 regions as
  // archive regions.  This allows a quick check for whether an object
  // should not be marked because it is in an archive region.
! class G1ArchiveRegionMap : public G1BiasedMappedArray<uint8_t> {
! public:
!   static const uint8_t NoArchive = 0;
!   static const uint8_t OpenArchive = 1;
!   static const uint8_t ClosedArchive = 2;
! 
  protected:
!   uint8_t default_value() const { return NoArchive; }
  };
  
  // G1ArchiveAllocator is used to allocate memory in archive
  // regions. Such regions are not scavenged nor compacted by GC.
  // There are two types of archive regions, which are
*** 299,309 ****
    // Check if the object is either in closed archive or open archive
    static inline bool is_archived_object(oop object);
  
  private:
    static bool _archive_check_enabled;
!   static G1ArchiveRegionMap  _closed_archive_region_map;
    static G1ArchiveRegionMap  _open_archive_region_map;
  
    // Check if an object is in a closed archive region using the _closed_archive_region_map.
    static inline bool in_closed_archive_range(oop object);
    // Check if an object is in open archive region using the _open_archive_region_map.
--- 304,314 ----
    // Check if the object is either in closed archive or open archive
    static inline bool is_archived_object(oop object);
  
  private:
    static bool _archive_check_enabled;
!   static G1ArchiveRegionMap  _archive_region_map;
    static G1ArchiveRegionMap  _open_archive_region_map;
  
    // Check if an object is in a closed archive region using the _closed_archive_region_map.
    static inline bool in_closed_archive_range(oop object);
    // Check if an object is in open archive region using the _open_archive_region_map.