author | brutisso |
Mon, 21 Nov 2011 07:47:34 +0100 | |
changeset 11170 | 7663e46f3a54 |
parent 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2010, 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_MEMORY_CLASSIFY_HPP |
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#define SHARE_VM_MEMORY_CLASSIFY_HPP |
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#include "oops/oop.inline.hpp" |
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typedef enum oop_type { |
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unknown_type, |
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instance_type, |
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instanceRef_type, |
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objArray_type, |
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symbol_type, |
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klass_type, |
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instanceKlass_type, |
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method_type, |
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constMethod_type, |
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methodData_type, |
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constantPool_type, |
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constantPoolCache_type, |
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typeArray_type, |
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compiledICHolder_type, |
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number_object_types |
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} object_type; |
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// Classify objects by type and keep counts. |
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// Print the count and space taken for each type. |
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class ClassifyObjectClosure : public ObjectClosure { |
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private: |
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static const char* object_type_name[number_object_types]; |
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int total_object_count; |
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size_t total_object_size; |
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int object_count[number_object_types]; |
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size_t object_size[number_object_types]; |
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public: |
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ClassifyObjectClosure() { reset(); } |
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void reset(); |
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void do_object(oop obj); |
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static object_type classify_object(oop obj, bool count); |
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size_t print(); |
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}; |
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// Count objects using the alloc_count field in the object's klass |
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// object. |
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class ClassifyInstanceKlassClosure : public ClassifyObjectClosure { |
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private: |
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int total_instances; |
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public: |
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ClassifyInstanceKlassClosure() { reset(); } |
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void reset(); |
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void print(); |
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void do_object(oop obj); |
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}; |
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// Clear the alloc_count fields in all classes so that the count can be |
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// restarted. |
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class ClearAllocCountClosure : public ObjectClosure { |
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public: |
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void do_object(oop obj) { |
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if (obj->is_klass()) { |
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Klass* k = Klass::cast((klassOop)obj); |
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k->set_alloc_count(0); |
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} |
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} |
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}; |
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#endif // SHARE_VM_MEMORY_CLASSIFY_HPP |