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src/hotspot/share/gc/shared/gcArguments.hpp

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  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef SHARE_GC_SHARED_GCARGUMENTS_HPP
  27 #define SHARE_GC_SHARED_GCARGUMENTS_HPP
  28 
  29 #include "memory/allocation.hpp"
  30 
  31 class CollectedHeap;
  32 


  33 extern size_t HeapAlignment;
  34 extern size_t SpaceAlignment;
  35 
  36 class GCArguments {
  37 protected:
  38   // Initialize HeapAlignment, SpaceAlignment, and extra alignments (E.g. GenAlignment)
  39   virtual void initialize_alignments() = 0;
  40   virtual void initialize_heap_flags_and_sizes();
  41   virtual void initialize_size_info();
  42 
  43   DEBUG_ONLY(void assert_flags();)
  44   DEBUG_ONLY(void assert_size_info();)
  45 
  46 public:
  47   virtual void initialize();
  48   virtual size_t conservative_max_heap_alignment() = 0;
  49   virtual CollectedHeap* create_heap() = 0;
  50 
  51   void initialize_heap_sizes();
  52 


  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef SHARE_GC_SHARED_GCARGUMENTS_HPP
  27 #define SHARE_GC_SHARED_GCARGUMENTS_HPP
  28 
  29 #include "memory/allocation.hpp"
  30 
  31 class CollectedHeap;
  32 
  33 extern size_t MinHeapSize;
  34 
  35 extern size_t HeapAlignment;
  36 extern size_t SpaceAlignment;
  37 
  38 class GCArguments {
  39 protected:
  40   // Initialize HeapAlignment, SpaceAlignment, and extra alignments (E.g. GenAlignment)
  41   virtual void initialize_alignments() = 0;
  42   virtual void initialize_heap_flags_and_sizes();
  43   virtual void initialize_size_info();
  44 
  45   DEBUG_ONLY(void assert_flags();)
  46   DEBUG_ONLY(void assert_size_info();)
  47 
  48 public:
  49   virtual void initialize();
  50   virtual size_t conservative_max_heap_alignment() = 0;
  51   virtual CollectedHeap* create_heap() = 0;
  52 
  53   void initialize_heap_sizes();
  54 
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