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comparison src/share/vm/oops/klass.hpp @ 7956:16fb9f942703

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6479360: PrintClassHistogram improvements Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions) Reviewed-by: coleenp, hseigel, sla, acorn Contributed-by: ioi.lam@oracle.com
author acorn
date Fri, 25 Jan 2013 15:06:18 -0500
parents 30866cd626b0
children 1eae78177059
comparison
equal deleted inserted replaced
7950:6cf2530f7fd3 7956:16fb9f942703
1 /* 1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
89 template <class T> class Array; 89 template <class T> class Array;
90 template <class T> class GrowableArray; 90 template <class T> class GrowableArray;
91 class ClassLoaderData; 91 class ClassLoaderData;
92 class klassVtable; 92 class klassVtable;
93 class ParCompactionManager; 93 class ParCompactionManager;
94 class KlassSizeStats;
94 95
95 class Klass : public Metadata { 96 class Klass : public Metadata {
96 friend class VMStructs; 97 friend class VMStructs;
97 protected: 98 protected:
98 // note: put frequently-used fields together at start of klass structure 99 // note: put frequently-used fields together at start of klass structure
475 // actual oop size of obj in memory 476 // actual oop size of obj in memory
476 virtual int oop_size(oop obj) const = 0; 477 virtual int oop_size(oop obj) const = 0;
477 478
478 // Size of klass in word size. 479 // Size of klass in word size.
479 virtual int size() const = 0; 480 virtual int size() const = 0;
481 #if INCLUDE_SERVICES
482 virtual void collect_statistics(KlassSizeStats *sz) const;
483 #endif
480 484
481 // Returns the Java name for a class (Resource allocated) 485 // Returns the Java name for a class (Resource allocated)
482 // For arrays, this returns the name of the element with a leading '['. 486 // For arrays, this returns the name of the element with a leading '['.
483 // For classes, this returns the name with the package separators 487 // For classes, this returns the name with the package separators
484 // turned into '.'s. 488 // turned into '.'s.