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comparison src/share/vm/oops/oop.hpp @ 14909:4ca6dc0799b6

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Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents 7f0e0366ec81
children 52b4284cb496
comparison
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14908:8db6e76cb658 14909:4ca6dc0799b6
1 /* 1 /*
2 * Copyright (c) 1997, 2014, 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.
107 // Sometimes (for complicated concurrency-related reasons), it is useful 107 // Sometimes (for complicated concurrency-related reasons), it is useful
108 // to be able to figure out the size of an object knowing its klass. 108 // to be able to figure out the size of an object knowing its klass.
109 int size_given_klass(Klass* klass); 109 int size_given_klass(Klass* klass);
110 110
111 // type test operations (inlined in oop.inline.h) 111 // type test operations (inlined in oop.inline.h)
112 bool is_instance() const; 112 bool is_instance() const;
113 bool is_instanceMirror() const; 113 bool is_instanceMirror() const;
114 bool is_instanceClassLoader() const; 114 bool is_instanceRef() const;
115 bool is_instanceRef() const; 115 bool is_array() const;
116 bool is_array() const; 116 bool is_objArray() const;
117 bool is_objArray() const; 117 bool is_typeArray() const;
118 bool is_typeArray() const;
119 118
120 private: 119 private:
121 // field addresses in oop 120 // field addresses in oop
122 void* field_base(int offset) const; 121 void* field_base(int offset) const;
123 122
361 // safepoint if called on a biased object. Calling code must be aware of that. 360 // safepoint if called on a biased object. Calling code must be aware of that.
362 intptr_t identity_hash(); 361 intptr_t identity_hash();
363 intptr_t slow_identity_hash(); 362 intptr_t slow_identity_hash();
364 363
365 // Alternate hashing code if string table is rehashed 364 // Alternate hashing code if string table is rehashed
366 unsigned int new_hash(juint seed); 365 unsigned int new_hash(jint seed);
367 366
368 // marks are forwarded to stack when object is locked 367 // marks are forwarded to stack when object is locked
369 bool has_displaced_mark() const; 368 bool has_displaced_mark() const;
370 markOop displaced_mark() const; 369 markOop displaced_mark() const;
371 void set_displaced_mark(markOop m); 370 void set_displaced_mark(markOop m);