src/share/vm/oops/objArrayKlassKlass.hpp

Wed, 25 Jan 2012 17:40:51 -0500

author
jiangli
date
Wed, 25 Jan 2012 17:40:51 -0500
changeset 3526
a79cb7c55012
parent 2314
f95d63e2154a
permissions
-rw-r--r--

7132690: InstanceKlass:_reference_type should be u1 type
Summary: Change InstanceKlass::_reference_type to u1 type.
Reviewed-by: dholmes, coleenp, acorn
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     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
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP
    26 #define SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP
    28 #include "oops/arrayKlassKlass.hpp"
    29 #include "oops/objArrayKlass.hpp"
    31 // The objArrayKlassKlass is klass for all objArrayKlass'
    33 class objArrayKlassKlass : public arrayKlassKlass {
    34  public:
    35   // Testing
    36   virtual bool oop_is_objArrayKlass() const { return true; }
    38   // Dispatched operation
    39   int oop_size(oop obj) const { return objArrayKlass::cast(klassOop(obj))->object_size(); }
    40   int klass_oop_size() const  { return object_size(); }
    42   // Allocation
    43   DEFINE_ALLOCATE_PERMANENT(objArrayKlassKlass);
    44   static klassOop create_klass(TRAPS);
    45   klassOop allocate_objArray_klass(int n, KlassHandle element_klass, TRAPS);
    46   klassOop allocate_system_objArray_klass(TRAPS); // Used for bootstrapping in Universe::genesis
    48   // Casting from klassOop
    49   static objArrayKlassKlass* cast(klassOop k) {
    50     assert(k->klass_part()->oop_is_klass(), "cast to objArrayKlassKlass");
    51     return (objArrayKlassKlass*) k->klass_part();
    52   }
    54   // Sizing
    55   static int header_size()  { return oopDesc::header_size() + sizeof(objArrayKlassKlass)/HeapWordSize; }
    56   int object_size() const   { return align_object_size(header_size()); }
    58   // Garbage collection
    59   void oop_follow_contents(oop obj);
    60   int oop_adjust_pointers(oop obj);
    62   // Parallel Scavenge and Parallel Old
    63   PARALLEL_GC_DECLS
    65   // Iterators
    66   int oop_oop_iterate(oop obj, OopClosure* blk);
    67   int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
    69  private:
    70   // helpers
    71   static klassOop allocate_objArray_klass_impl(objArrayKlassKlassHandle this_oop, int n, KlassHandle element_klass, TRAPS);
    73  public:
    74   // Printing
    75   void oop_print_value_on(oop obj, outputStream* st);
    76 #ifndef PRODUCT
    77   void oop_print_on(oop obj, outputStream* st);
    78 #endif //PRODUCT
    80   // Verification
    81   const char* internal_name() const;
    82   void oop_verify_on(oop obj, outputStream* st);
    84 };
    86 #endif // SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP

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