src/share/vm/oops/instanceClassLoaderKlass.hpp

Wed, 23 Jan 2013 13:02:39 -0500

author
jprovino
date
Wed, 23 Jan 2013 13:02:39 -0500
changeset 4542
db9981fd3124
parent 4047
aed758eda82a
child 6198
55fb97c4c58d
permissions
-rw-r--r--

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*
     2  * Copyright (c) 2011, 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_INSTANCECLASSLOADERKLASS_HPP
    26 #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
    28 #include "oops/instanceKlass.hpp"
    29 #include "utilities/macros.hpp"
    31 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
    32 // not add any field.  It is added to walk the dependencies for the class loader
    33 // key that this class loader points to.  This is how the loader_data graph is
    34 // walked and dependant class loaders are kept alive.  I thought we walked
    35 // the list later?
    37 class InstanceClassLoaderKlass: public InstanceKlass {
    38   friend class VMStructs;
    39   friend class InstanceKlass;
    41   // Constructor
    42   InstanceClassLoaderKlass(int vtable_len, int itable_len, int static_field_size, int nonstatic_oop_map_size, ReferenceType rt, AccessFlags access_flags, bool is_anonymous)
    43     : InstanceKlass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt, access_flags, is_anonymous) {}
    45 public:
    46   virtual bool oop_is_instanceClassLoader() const { return true; }
    48   InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
    50   // Iterators
    51   int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
    52     return oop_oop_iterate_v(obj, blk);
    53   }
    54   int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
    55     return oop_oop_iterate_v_m(obj, blk, mr);
    56   }
    58 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix)                \
    59   int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk);                         \
    60   int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, MemRegion mr);
    62   ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
    63   ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
    65 #if INCLUDE_ALL_GCS
    66 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix)      \
    67   int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk);
    69   ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
    70   ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
    71 #endif // INCLUDE_ALL_GCS
    73     // Garbage collection
    74   void oop_follow_contents(oop obj);
    76   // Parallel Scavenge and Parallel Old
    77   PARALLEL_GC_DECLS
    78 };
    80 #endif // SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP

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