81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
/*
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* Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP
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#define SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP
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#include "memory/virtualspace.hpp"
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#include "runtime/perfData.hpp"
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// A GenerationCounter is a holder class for performance counters
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// that track a generation
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class GenerationCounters: public CHeapObj<mtGC> {
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friend class VMStructs;
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private:
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void initialize(const char* name, int ordinal, int spaces,
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size_t min_capacity, size_t max_capacity,
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size_t curr_capacity);
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protected:
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PerfVariable* _current_size;
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VirtualSpace* _virtual_space;
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// Constant PerfData types don't need to retain a reference.
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// However, it's a good idea to document them here.
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// PerfStringConstant* _name;
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// PerfConstant* _min_size;
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// PerfConstant* _max_size;
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// PerfConstant* _spaces;
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char* _name_space;
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// This constructor is only meant for use with the PSGenerationCounters
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// constructor. The need for such an constructor should be eliminated
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// when VirtualSpace and PSVirtualSpace are unified.
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GenerationCounters()
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: _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
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// This constructor is used for subclasses that do not have a space
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// associated with them (e.g, in G1).
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GenerationCounters(const char* name, int ordinal, int spaces,
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size_t min_capacity, size_t max_capacity,
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size_t curr_capacity);
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public:
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GenerationCounters(const char* name, int ordinal, int spaces,
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size_t min_capacity, size_t max_capacity, VirtualSpace* v);
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~GenerationCounters() {
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if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
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}
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virtual void update_all();
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const char* name_space() const { return _name_space; }
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};
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#endif // SHARE_VM_GC_SHARED_GENERATIONCOUNTERS_HPP
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