1 /* 2 * Copyright (c) 1997, 2010, 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 */ 24 25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP 26 #define SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP 27 28 #include "oops/arrayKlassKlass.hpp" 29 #include "oops/objArrayKlass.hpp" 30 31 // The objArrayKlassKlass is klass for all objArrayKlass' 32 33 class objArrayKlassKlass : public arrayKlassKlass { 34 public: 35 // Testing 36 virtual bool oop_is_objArrayKlass() const { return true; } 37 38 // Dispatched operation 39 int oop_size(oop obj) const { return objArrayKlass::cast(klassOop(obj))->object_size(); } 40 int klass_oop_size() const { return object_size(); } 41 42 // Allocation 43 DEFINE_ALLOCATE_PERMANENT(objArrayKlassKlass); 44 static klassOop create_klass(TRAPS); 45 klassOop allocate_objArray_klass(int n, KlassHandle element_klass, TRAPS); 46 klassOop allocate_system_objArray_klass(TRAPS); // Used for bootstrapping in Universe::genesis 47 48 // Casting from klassOop 49 static objArrayKlassKlass* cast(klassOop k) { 50 assert(k->klass_part()->oop_is_klass(), "cast to objArrayKlassKlass"); 51 return (objArrayKlassKlass*) k->klass_part(); 52 } 53 54 // Sizing 55 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlassKlass)/HeapWordSize; } 56 int object_size() const { return align_object_size(header_size()); } 57 58 // Garbage collection 59 void oop_follow_contents(oop obj); 60 int oop_adjust_pointers(oop obj); 61 62 // Parallel Scavenge and Parallel Old 63 PARALLEL_GC_DECLS 64 65 // Iterators 66 int oop_oop_iterate(oop obj, OopClosure* blk); 67 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); 68 69 private: 70 // helpers 71 static klassOop allocate_objArray_klass_impl(objArrayKlassKlassHandle this_oop, int n, KlassHandle element_klass, TRAPS); 72 73 public: 74 // Printing 75 void oop_print_value_on(oop obj, outputStream* st); 76 #ifndef PRODUCT 77 void oop_print_on(oop obj, outputStream* st); 78 #endif //PRODUCT 79 80 // Verification 81 const char* internal_name() const; 82 void oop_verify_on(oop obj, outputStream* st); 83 84 }; 85 86 #endif // SHARE_VM_OOPS_OBJARRAYKLASSKLASS_HPP