5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
  27 
  28 #include "memory/virtualspace.hpp"
  29 #include "runtime/perfData.hpp"
  30 
  31 // A GenerationCounter is a holder class for performance counters
  32 // that track a generation
  33 
  34 class GenerationCounters: public CHeapObj<mtGC> {
  35   friend class VMStructs;
  36 
  37 private:
  38   void initialize(const char* name, int ordinal, int spaces,
  39                   size_t min_capacity, size_t max_capacity,
  40                   size_t curr_capacity);
  41 
  42  protected:
  43   PerfVariable*      _current_size;
  44   VirtualSpace*      _virtual_space;
  45 
  46   // Constant PerfData types don't need to retain a reference.

  60 
  61   // This constructor is used for subclasses that do not have a space
  62   // associated with them (e.g, in G1).
  63   GenerationCounters(const char* name, int ordinal, int spaces,
  64                      size_t min_capacity, size_t max_capacity,
  65                      size_t curr_capacity);
  66 
  67  public:
  68   GenerationCounters(const char* name, int ordinal, int spaces,
  69                      size_t min_capacity, size_t max_capacity, VirtualSpace* v);
  70 
  71   ~GenerationCounters() {
  72     if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
  73   }
  74 
  75   virtual void update_all();
  76 
  77   const char* name_space() const        { return _name_space; }
  78 
  79 };
  80 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP

   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP
  26 #define SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP
  27 
  28 #include "memory/virtualspace.hpp"
  29 #include "runtime/perfData.hpp"
  30 
  31 // A GenerationCounter is a holder class for performance counters
  32 // that track a generation
  33 
  34 class GenerationCounters: public CHeapObj<mtGC> {
  35   friend class VMStructs;
  36 
  37 private:
  38   void initialize(const char* name, int ordinal, int spaces,
  39                   size_t min_capacity, size_t max_capacity,
  40                   size_t curr_capacity);
  41 
  42  protected:
  43   PerfVariable*      _current_size;
  44   VirtualSpace*      _virtual_space;
  45 
  46   // Constant PerfData types don't need to retain a reference.

  60 
  61   // This constructor is used for subclasses that do not have a space
  62   // associated with them (e.g, in G1).
  63   GenerationCounters(const char* name, int ordinal, int spaces,
  64                      size_t min_capacity, size_t max_capacity,
  65                      size_t curr_capacity);
  66 
  67  public:
  68   GenerationCounters(const char* name, int ordinal, int spaces,
  69                      size_t min_capacity, size_t max_capacity, VirtualSpace* v);
  70 
  71   ~GenerationCounters() {
  72     if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
  73   }
  74 
  75   virtual void update_all();
  76 
  77   const char* name_space() const        { return _name_space; }
  78 
  79 };
  80 #endif // SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP