1 
   2 /*
   3  * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  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 // A PSGenerationCounter is a holder class for performance counters
  27 // that track a generation
  28 
  29 class PSGenerationCounters: public GenerationCounters {
  30   friend class VMStructs;
  31 
  32  private:
  33   PSVirtualSpace*      _ps_virtual_space;
  34 
  35  public:
  36   PSGenerationCounters(const char* name, int ordinal, int spaces,
  37                      PSVirtualSpace* v);
  38 
  39   void update_all() {
  40     assert(_virtual_space == NULL, "Only one should be in use");
  41     _current_size->set_value(_ps_virtual_space->committed_size());
  42   }
  43 };