duke@435: /*
trims@1907:  * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // A constantPoolKlass is the klass of a constantPoolOop
duke@435: 
coleenp@548: class constantPoolKlass : public Klass {
coleenp@548:   juint    _alloc_size;        // allocation profiling support
duke@435:  public:
duke@435:   // Dispatched klass operations
duke@435:   bool oop_is_constantPool() const  { return true; }
duke@435:   int oop_size(oop obj) const;
duke@435:   int klass_oop_size() const        { return object_size(); }
duke@435: 
duke@435:   // Allocation
duke@435:   DEFINE_ALLOCATE_PERMANENT(constantPoolKlass);
jmasa@953:   constantPoolOop allocate(int length, bool is_conc_safe, TRAPS);
duke@435:   static klassOop create_klass(TRAPS);
duke@435: 
duke@435:   // Casting from klassOop
duke@435:   static constantPoolKlass* cast(klassOop k) {
duke@435:     assert(k->klass_part()->oop_is_constantPool(), "cast to constantPoolKlass");
duke@435:     return (constantPoolKlass*) k->klass_part();
duke@435:   }
duke@435: 
duke@435:   // Sizing
duke@435:   static int header_size()        { return oopDesc::header_size() + sizeof(constantPoolKlass)/HeapWordSize; }
coleenp@548:   int object_size() const        { return align_object_size(header_size()); }
duke@435: 
duke@435:   // Garbage collection
jmasa@953:   // Returns true is the object is safe for GC concurrent processing.
jmasa@953:   virtual bool oop_is_conc_safe(oop obj) const;
duke@435:   void oop_follow_contents(oop obj);
duke@435:   int oop_adjust_pointers(oop obj);
duke@435: 
duke@435:   // Parallel Scavenge and Parallel Old
duke@435:   PARALLEL_GC_DECLS
duke@435: 
duke@435:   // Iterators
duke@435:   int oop_oop_iterate(oop obj, OopClosure* blk);
duke@435:   int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
duke@435: 
coleenp@548:   // Allocation profiling support
coleenp@548:   juint alloc_size() const              { return _alloc_size; }
coleenp@548:   void set_alloc_size(juint n)          { _alloc_size = n; }
coleenp@548: 
duke@435:   // Printing
jrose@1590:   void oop_print_value_on(oop obj, outputStream* st);
duke@435:   void oop_print_on(oop obj, outputStream* st);
duke@435: 
duke@435:   // Verification
duke@435:   const char* internal_name() const;
duke@435:   void oop_verify_on(oop obj, outputStream* st);
duke@435:   // tells whether obj is partially constructed (gc during class loading)
duke@435:   bool oop_partially_loaded(oop obj) const;
duke@435:   void oop_set_partially_loaded(oop obj);
duke@435: #ifndef PRODUCT
duke@435:   // Compile the world support
duke@435:   static void preload_and_initialize_all_classes(oop constant_pool, TRAPS);
duke@435: #endif
duke@435: };