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