jdk8-mips64-public/hotspot: src/share/vm/oops/instanceKlassKlass.hpp@c89f86385056

6814659: separable cleanups and subroutines for 6655638
Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never

     1 /*

     2  * Copyright 1997-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 // An instanceKlassKlass is the klass of an instanceKlass

    27 class instanceKlassKlass : public klassKlass {

    28  public:

    29   // Dispatched operation

    30   bool oop_is_klass() const           { return true; }

    31   bool oop_is_instanceKlass() const   { return true; }

    33   int oop_size(oop obj) const;

    34   int klass_oop_size() const    { return object_size(); }

    36   // Allocation

    37   DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass);

    38   static klassOop create_klass(TRAPS);

    39   klassOop allocate_instance_klass(int vtable_len,

    40                                    int itable_len,

    41                                    int static_field_size,

    42                                    int nonstatic_oop_map_size,

    43                                    ReferenceType rt,

    44                                    TRAPS);

    46   // Casting from klassOop

    47   static instanceKlassKlass* cast(klassOop k) {

    48     assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass");

    49     return (instanceKlassKlass*) k->klass_part();

    50   }

    52   // Sizing

    53   static int header_size()    { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; }

    54   int object_size() const     { return align_object_size(header_size()); }

    56   // Garbage collection

    57   void oop_follow_contents(oop obj);

    58   int  oop_adjust_pointers(oop obj);

    59   bool oop_is_parsable(oop obj) const;

    61   // Parallel Scavenge and Parallel Old

    62   PARALLEL_GC_DECLS

    64   // Iterators

    65   int oop_oop_iterate(oop obj, OopClosure* blk);

    66   int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);

    68 private:

    69   // Apply closure to the InstanceKlass oops that are outside the java heap.

    70   inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure);

    72 #ifndef PRODUCT

    73  public:

    74   // Printing

    75   void oop_print_on(oop obj, outputStream* st);

    76   void oop_print_value_on(oop obj, outputStream* st);

    77 #endif

    79  public:

    80   // Verification

    81   const char* internal_name() const;

    82   void oop_verify_on(oop obj, outputStream* st);

    83   // tells whether obj is partially constructed (gc during class loading)

    84   bool oop_partially_loaded(oop obj) const;

    85   void oop_set_partially_loaded(oop obj);

    86 };

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