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view src/share/vm/gc_implementation/shared/cSpaceCounters.hpp @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
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date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 2002, 2012, 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_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP #define SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP #include "gc_implementation/shared/generationCounters.hpp" #include "memory/space.inline.hpp" #include "runtime/perfData.hpp" // A CSpaceCounters is a holder class for performance counters // that track a space; class CSpaceCounters: public CHeapObj<mtGC> { friend class VMStructs; private: PerfVariable* _capacity; PerfVariable* _used; PerfVariable* _max_capacity; // Constant PerfData types don't need to retain a reference. // However, it's a good idea to document them here. // PerfConstant* _size; ContiguousSpace* _space; char* _name_space; public: CSpaceCounters(const char* name, int ordinal, size_t max_size, ContiguousSpace* s, GenerationCounters* gc); ~CSpaceCounters() { if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtInternal); } virtual inline void update_capacity() { _capacity->set_value(_space->capacity()); } virtual inline void update_used() { _used->set_value(_space->used()); } virtual inline void update_all() { update_used(); update_capacity(); } const char* name_space() const { return _name_space; } }; class ContiguousSpaceUsedHelper : public PerfLongSampleHelper { private: ContiguousSpace* _space; public: ContiguousSpaceUsedHelper(ContiguousSpace* space) : _space(space) { } inline jlong take_sample() { return _space->used(); } }; #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP