93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
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/*
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* Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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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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