120 lines
4.1 KiB
C++
120 lines
4.1 KiB
C++
/*
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* Copyright (c) 1997, 2011, 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_OOPS_KLASSOOP_HPP
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#define SHARE_VM_OOPS_KLASSOOP_HPP
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#include "oops/oop.hpp"
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// A klassOop is the C++ equivalent of a Java class.
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// Part of a klassOopDesc is a Klass which handle the
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// dispatching for the C++ method calls.
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// klassOop object layout:
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// [header ]
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// [klass_field]
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// [KLASS ]
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class klassOopDesc : public oopDesc {
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public:
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// size operation
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static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; }
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// support for code generation
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static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); }
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// returns the Klass part containing dispatching behavior
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Klass* klass_part() const { return (Klass*)((address)this + klass_part_offset_in_bytes()); }
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// Convenience wrapper
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inline oop java_mirror() const;
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private:
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// These have no implementation since klassOop should never be accessed in this fashion
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oop obj_field(int offset) const;
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volatile oop obj_field_volatile(int offset) const;
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void obj_field_put(int offset, oop value);
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void obj_field_put_raw(int offset, oop value);
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void obj_field_put_volatile(int offset, oop value);
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jbyte byte_field(int offset) const;
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void byte_field_put(int offset, jbyte contents);
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jchar char_field(int offset) const;
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void char_field_put(int offset, jchar contents);
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jboolean bool_field(int offset) const;
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void bool_field_put(int offset, jboolean contents);
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jint int_field(int offset) const;
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void int_field_put(int offset, jint contents);
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jshort short_field(int offset) const;
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void short_field_put(int offset, jshort contents);
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jlong long_field(int offset) const;
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void long_field_put(int offset, jlong contents);
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jfloat float_field(int offset) const;
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void float_field_put(int offset, jfloat contents);
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jdouble double_field(int offset) const;
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void double_field_put(int offset, jdouble contents);
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address address_field(int offset) const;
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void address_field_put(int offset, address contents);
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oop obj_field_acquire(int offset) const;
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void release_obj_field_put(int offset, oop value);
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jbyte byte_field_acquire(int offset) const;
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void release_byte_field_put(int offset, jbyte contents);
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jchar char_field_acquire(int offset) const;
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void release_char_field_put(int offset, jchar contents);
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jboolean bool_field_acquire(int offset) const;
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void release_bool_field_put(int offset, jboolean contents);
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jint int_field_acquire(int offset) const;
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void release_int_field_put(int offset, jint contents);
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jshort short_field_acquire(int offset) const;
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void release_short_field_put(int offset, jshort contents);
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jlong long_field_acquire(int offset) const;
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void release_long_field_put(int offset, jlong contents);
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jfloat float_field_acquire(int offset) const;
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void release_float_field_put(int offset, jfloat contents);
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jdouble double_field_acquire(int offset) const;
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void release_double_field_put(int offset, jdouble contents);
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address address_field_acquire(int offset) const;
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void release_address_field_put(int offset, address contents);
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};
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#endif // SHARE_VM_OOPS_KLASSOOP_HPP
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