coleenp@4037: /*
coleenp@4037:  * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
coleenp@4037:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
coleenp@4037:  *
coleenp@4037:  * This code is free software; you can redistribute it and/or modify it
coleenp@4037:  * under the terms of the GNU General Public License version 2 only, as
coleenp@4037:  * published by the Free Software Foundation.
coleenp@4037:  *
coleenp@4037:  * This code is distributed in the hope that it will be useful, but WITHOUT
coleenp@4037:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
coleenp@4037:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
coleenp@4037:  * version 2 for more details (a copy is included in the LICENSE file that
coleenp@4037:  * accompanied this code).
coleenp@4037:  *
coleenp@4037:  * You should have received a copy of the GNU General Public License version
coleenp@4037:  * 2 along with this work; if not, write to the Free Software Foundation,
coleenp@4037:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
coleenp@4037:  *
coleenp@4037:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
coleenp@4037:  * or visit www.oracle.com if you need additional information or have any
coleenp@4037:  * questions.
coleenp@4037:  *
coleenp@4037:  */
coleenp@4037: 
coleenp@4037: #ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
coleenp@4037: #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
coleenp@4037: 
coleenp@4037: #include "oops/instanceKlass.hpp"
coleenp@4037: 
coleenp@4047: // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
coleenp@4037: // not add any field.  It is added to walk the dependencies for the class loader
coleenp@4037: // key that this class loader points to.  This is how the loader_data graph is
coleenp@4037: // walked and dependant class loaders are kept alive.  I thought we walked
coleenp@4037: // the list later?
coleenp@4037: 
coleenp@4047: class InstanceClassLoaderKlass: public InstanceKlass {
coleenp@4037:   friend class VMStructs;
coleenp@4037:   friend class InstanceKlass;
coleenp@4037: 
coleenp@4037:   // Constructor
coleenp@4047:   InstanceClassLoaderKlass(int vtable_len, int itable_len, int static_field_size, int nonstatic_oop_map_size, ReferenceType rt, AccessFlags access_flags, bool is_anonymous)
coleenp@4037:     : InstanceKlass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt, access_flags, is_anonymous) {}
coleenp@4037: 
coleenp@4037: public:
coleenp@4037:   virtual bool oop_is_instanceClassLoader() const { return true; }
coleenp@4037: 
coleenp@4047:   InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
coleenp@4037: 
coleenp@4037:   // Iterators
coleenp@4037:   int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
coleenp@4037:     return oop_oop_iterate_v(obj, blk);
coleenp@4037:   }
coleenp@4037:   int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
coleenp@4037:     return oop_oop_iterate_v_m(obj, blk, mr);
coleenp@4037:   }
coleenp@4037: 
coleenp@4037: #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix)                \
coleenp@4037:   int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk);                         \
coleenp@4037:   int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, MemRegion mr);
coleenp@4037: 
coleenp@4037:   ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
coleenp@4037:   ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
coleenp@4037: 
coleenp@4037: #ifndef SERIALGC
coleenp@4037: #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix)      \
coleenp@4037:   int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk);
coleenp@4037: 
coleenp@4037:   ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
coleenp@4037:   ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
coleenp@4037: #endif // !SERIALGC
coleenp@4037: 
coleenp@4037:     // Garbage collection
coleenp@4037:   void oop_follow_contents(oop obj);
coleenp@4037: 
coleenp@4037:   // Parallel Scavenge and Parallel Old
coleenp@4037:   PARALLEL_GC_DECLS
coleenp@4037: };
coleenp@4037: 
coleenp@4037: #endif // SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP