duke@435: /*
duke@435:  * Copyright 2002-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // GCPolicyCounters is a holder class for performance counters
duke@435: // that track a generation
duke@435: 
duke@435: class GCPolicyCounters: public CHeapObj {
duke@435:   friend class VMStructs;
duke@435: 
duke@435:   private:
duke@435: 
duke@435:     // Constant PerfData types don't need to retain a reference.
duke@435:     // However, it's a good idea to document them here.
duke@435:     // PerfStringConstant*     _name;
duke@435:     // PerfStringConstant*     _collector_size;
duke@435:     // PerfStringConstant*     _generation_size;
duke@435: 
duke@435:     PerfVariable*     _tenuring_threshold;
duke@435:     PerfVariable*     _desired_survivor_size;
duke@435: 
duke@435:     const char* _name_space;
duke@435: 
duke@435:  public:
duke@435: 
duke@435:   enum Name {
duke@435:     NONE,
duke@435:     GCPolicyCountersKind,
duke@435:     GCAdaptivePolicyCountersKind,
duke@435:     PSGCAdaptivePolicyCountersKind,
duke@435:     CMSGCAdaptivePolicyCountersKind
duke@435:   };
duke@435: 
duke@435:   GCPolicyCounters(const char* name, int collectors, int generations);
duke@435: 
duke@435:     inline PerfVariable* tenuring_threshold() const  {
duke@435:       return _tenuring_threshold;
duke@435:     }
duke@435: 
duke@435:     inline PerfVariable* desired_survivor_size() const  {
duke@435:       return _desired_survivor_size;
duke@435:     }
duke@435: 
duke@435:     const char* name_space() const { return _name_space; }
duke@435: 
duke@435:     virtual void update_counters() {}
duke@435: 
duke@435:     virtual GCPolicyCounters::Name kind() const {
duke@435:       return GCPolicyCounters::GCPolicyCountersKind;
duke@435:     }
duke@435: };