duke@435: /*
duke@435:  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: typedef enum oop_type {
duke@435:   unknown_type,
duke@435:   instance_type,
duke@435:   instanceRef_type,
duke@435:   objArray_type,
duke@435:   symbol_type,
duke@435:   klass_type,
duke@435:   instanceKlass_type,
duke@435:   method_type,
duke@435:   constMethod_type,
duke@435:   methodData_type,
duke@435:   constantPool_type,
duke@435:   constantPoolCache_type,
duke@435:   typeArray_type,
duke@435:   compiledICHolder_type,
duke@435:   number_object_types
duke@435: } object_type;
duke@435: 
duke@435: 
duke@435: // Classify objects by type and keep counts.
duke@435: // Print the count and space taken for each type.
duke@435: 
duke@435: 
duke@435: class ClassifyObjectClosure : public ObjectClosure {
duke@435: private:
duke@435: 
duke@435:   static const char* object_type_name[number_object_types];
duke@435: 
duke@435:   int total_object_count;
duke@435:   size_t total_object_size;
duke@435:   int object_count[number_object_types];
duke@435:   size_t object_size[number_object_types];
duke@435: 
duke@435: public:
duke@435:   ClassifyObjectClosure() { reset(); }
duke@435:   void reset();
duke@435:   void do_object(oop obj);
duke@435:   static object_type classify_object(oop obj, bool count);
duke@435:   size_t print();
duke@435: };
duke@435: 
duke@435: 
duke@435: // Count objects using the alloc_count field in the object's klass
duke@435: // object.
duke@435: 
duke@435: class ClassifyInstanceKlassClosure : public ClassifyObjectClosure {
duke@435: private:
duke@435:   int total_instances;
duke@435: public:
duke@435:   ClassifyInstanceKlassClosure() { reset(); }
duke@435:   void reset();
duke@435:   void print();
duke@435:   void do_object(oop obj);
duke@435: };
duke@435: 
duke@435: 
duke@435: // Clear the alloc_count fields in all classes so that the count can be
duke@435: // restarted.
duke@435: 
duke@435: class ClearAllocCountClosure : public ObjectClosure {
duke@435: public:
duke@435:   void do_object(oop obj) {
duke@435:     if (obj->is_klass()) {
duke@435:       Klass* k = Klass::cast((klassOop)obj);
duke@435:       k->set_alloc_count(0);
duke@435:     }
duke@435:   }
duke@435: };