jdk8-mips64-public/hotspot: src/share/vm/oops/instanceKlassKlass.hpp@246d977b51f2

7178670: runtime/7158800/BadUtf8.java fails in SymbolTable::rehash_table
Summary: Cannot delete _buckets and HashtableEntries in shared space (CDS)
Reviewed-by: acorn, kvn, dlong, dcubed, kamg

     1 /*

     2  * Copyright (c) 1997, 2012, 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_INSTANCEKLASSKLASS_HPP

    26 #define SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP

    28 #include "oops/klassKlass.hpp"

    30 // An instanceKlassKlass is the klass of an instanceKlass

    32 class instanceKlassKlass : public klassKlass {

    33  public:

    34   // Dispatched operation

    35   bool oop_is_klass() const           { return true; }

    36   bool oop_is_instanceKlass() const   { return true; }

    38   int oop_size(oop obj) const;

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

    41   // Allocation

    42   DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass);

    43   static klassOop create_klass(TRAPS);

    44   klassOop allocate_instance_klass(Symbol* name,

    45                                    int vtable_len,

    46                                    int itable_len,

    47                                    int static_field_size,

    48                                    unsigned int nonstatic_oop_map_count,

    49                                    AccessFlags access_flags,

    50                                    ReferenceType rt,

    51                                    KlassHandle host_klass,

    52                                    TRAPS);

    54   // Casting from klassOop

    55   static instanceKlassKlass* cast(klassOop k) {

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

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

    58   }

    60   // Sizing

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

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

    64   // Garbage collection

    65   void oop_follow_contents(oop obj);

    66   int  oop_adjust_pointers(oop obj);

    67   bool oop_is_parsable(oop obj) const;

    69   // Parallel Scavenge and Parallel Old

    70   PARALLEL_GC_DECLS

    72   // Iterators

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

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

    76 private:

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

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

    80  public:

    81   // Printing

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

    83 #ifndef PRODUCT

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

    85 #endif

    87   // Verification

    88   const char* internal_name() const;

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

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

    91   bool oop_partially_loaded(oop obj) const;

    92   void oop_set_partially_loaded(oop obj);

    93 };

    95 #endif // SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/oops/instanceKlassKlass.hpp@246d977b51f2

src/share/vm/oops/instanceKlassKlass.hpp