src/hotspot/share/gc/parallel/adjoiningVirtualSpaces.hpp

rev 52004 : webrev.02
rev 52005 : Comments from Sangheon
rev 52006 : Bringing over one change from combined patch

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2015, 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) 2003, 2018, 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.
*** 57,67 ****
  // boundary) independently.  If L want to grow above its high_boundary,
  // then the high_boundary of L and the low_boundary of H must be
  // moved up consistently.  AdjoiningVirtualSpaces provide the
  // interfaces for moving the this boundary.
  
! class AdjoiningVirtualSpaces {
    // space at the high end and the low end, respectively
    PSVirtualSpace*    _high;
    PSVirtualSpace*    _low;
  
    // The reserved space spanned by the two spaces.
--- 57,68 ----
  // boundary) independently.  If L want to grow above its high_boundary,
  // then the high_boundary of L and the low_boundary of H must be
  // moved up consistently.  AdjoiningVirtualSpaces provide the
  // interfaces for moving the this boundary.
  
! class AdjoiningVirtualSpaces : public CHeapObj<mtGC> {
! protected:
    // space at the high end and the low end, respectively
    PSVirtualSpace*    _high;
    PSVirtualSpace*    _low;
  
    // The reserved space spanned by the two spaces.
*** 82,102 ****
                           size_t min_low_byte_size,
                           size_t min_high_byte_size,
                           size_t alignment);
  
    // accessors
!   PSVirtualSpace* high() { return _high; }
!   PSVirtualSpace* low()  { return _low; }
    ReservedSpace reserved_space() { return _reserved_space; }
    size_t min_low_byte_size() { return _min_low_byte_size; }
    size_t min_high_byte_size() { return _min_high_byte_size; }
    size_t alignment() const { return _alignment; }
  
    // move boundary between the two spaces up
!   bool adjust_boundary_up(size_t size_in_bytes);
    // and down
!   bool adjust_boundary_down(size_t size_in_bytes);
  
    // Maximum byte size for the high space.
    size_t high_byte_size_limit() {
      return _reserved_space.size() - _min_low_byte_size;
    }
--- 83,103 ----
                           size_t min_low_byte_size,
                           size_t min_high_byte_size,
                           size_t alignment);
  
    // accessors
!   virtual PSVirtualSpace* high() { return _high; }
!   virtual PSVirtualSpace* low()  { return _low; }
    ReservedSpace reserved_space() { return _reserved_space; }
    size_t min_low_byte_size() { return _min_low_byte_size; }
    size_t min_high_byte_size() { return _min_high_byte_size; }
    size_t alignment() const { return _alignment; }
  
    // move boundary between the two spaces up
!   virtual bool adjust_boundary_up(size_t size_in_bytes);
    // and down
!   virtual bool adjust_boundary_down(size_t size_in_bytes);
  
    // Maximum byte size for the high space.
    size_t high_byte_size_limit() {
      return _reserved_space.size() - _min_low_byte_size;
    }
*** 105,115 ****
      return _reserved_space.size() - _min_high_byte_size;
    }
  
    // Sets the boundaries for the virtual spaces and commits and
    // initial size;
!   void initialize(size_t max_low_byte_size,
                    size_t init_low_byte_size,
                    size_t init_high_byte_size);
  };
- 
  #endif // SHARE_VM_GC_PARALLEL_ADJOININGVIRTUALSPACES_HPP
--- 106,115 ----
      return _reserved_space.size() - _min_high_byte_size;
    }
  
    // Sets the boundaries for the virtual spaces and commits and
    // initial size;
!   virtual void initialize(size_t max_low_byte_size,
                    size_t init_low_byte_size,
                    size_t init_high_byte_size);
  };
  #endif // SHARE_VM_GC_PARALLEL_ADJOININGVIRTUALSPACES_HPP