1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/shared/generationCounters.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,80 @@
1.4 +/*
1.5 + * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
1.30 +
1.31 +#include "runtime/perfData.hpp"
1.32 +#include "runtime/virtualspace.hpp"
1.33 +
1.34 +// A GenerationCounter is a holder class for performance counters
1.35 +// that track a generation
1.36 +
1.37 +class GenerationCounters: public CHeapObj<mtGC> {
1.38 + friend class VMStructs;
1.39 +
1.40 +private:
1.41 + void initialize(const char* name, int ordinal, int spaces,
1.42 + size_t min_capacity, size_t max_capacity,
1.43 + size_t curr_capacity);
1.44 +
1.45 + protected:
1.46 + PerfVariable* _current_size;
1.47 + VirtualSpace* _virtual_space;
1.48 +
1.49 + // Constant PerfData types don't need to retain a reference.
1.50 + // However, it's a good idea to document them here.
1.51 + // PerfStringConstant* _name;
1.52 + // PerfConstant* _min_size;
1.53 + // PerfConstant* _max_size;
1.54 + // PerfConstant* _spaces;
1.55 +
1.56 + char* _name_space;
1.57 +
1.58 + // This constructor is only meant for use with the PSGenerationCounters
1.59 + // constructor. The need for such an constructor should be eliminated
1.60 + // when VirtualSpace and PSVirtualSpace are unified.
1.61 + GenerationCounters()
1.62 + : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
1.63 +
1.64 + // This constructor is used for subclasses that do not have a space
1.65 + // associated with them (e.g, in G1).
1.66 + GenerationCounters(const char* name, int ordinal, int spaces,
1.67 + size_t min_capacity, size_t max_capacity,
1.68 + size_t curr_capacity);
1.69 +
1.70 + public:
1.71 + GenerationCounters(const char* name, int ordinal, int spaces,
1.72 + VirtualSpace* v);
1.73 +
1.74 + ~GenerationCounters() {
1.75 + if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC);
1.76 + }
1.77 +
1.78 + virtual void update_all();
1.79 +
1.80 + const char* name_space() const { return _name_space; }
1.81 +
1.82 +};
1.83 +#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
