1 /* 2 * Copyright (c) 1997, 2006, 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 // The objArrayKlassKlass is klass for all objArrayKlass' 26 27 class objArrayKlassKlass : public arrayKlassKlass { 28 public: 29 // Testing 30 virtual bool oop_is_objArrayKlass() const { return true; } 31 32 // Dispatched operation 33 int oop_size(oop obj) const { return objArrayKlass::cast(klassOop(obj))->object_size(); } 34 int klass_oop_size() const { return object_size(); } 35 36 // Allocation 37 DEFINE_ALLOCATE_PERMANENT(objArrayKlassKlass); 38 static klassOop create_klass(TRAPS); 39 klassOop allocate_objArray_klass(int n, KlassHandle element_klass, TRAPS); 40 klassOop allocate_system_objArray_klass(TRAPS); // Used for bootstrapping in Universe::genesis 41 42 // Casting from klassOop 43 static objArrayKlassKlass* cast(klassOop k) { 44 assert(k->klass_part()->oop_is_klass(), "cast to objArrayKlassKlass"); 45 return (objArrayKlassKlass*) k->klass_part(); 46 } 47 48 // Sizing 49 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlassKlass)/HeapWordSize; } 50 int object_size() const { return align_object_size(header_size()); } 51 52 // Garbage collection 53 void oop_follow_contents(oop obj); 54 int oop_adjust_pointers(oop obj); 55 56 // Parallel Scavenge and Parallel Old 57 PARALLEL_GC_DECLS 58 59 // Iterators 60 int oop_oop_iterate(oop obj, OopClosure* blk); 61 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); 62 63 private: 64 // helpers 65 static klassOop allocate_objArray_klass_impl(objArrayKlassKlassHandle this_oop, int n, KlassHandle element_klass, TRAPS); 66 67 public: 68 // Printing 69 void oop_print_value_on(oop obj, outputStream* st); 70 #ifndef PRODUCT 71 void oop_print_on(oop obj, outputStream* st); 72 #endif //PRODUCT 73 74 // Verification 75 const char* internal_name() const; 76 void oop_verify_on(oop obj, outputStream* st); 77 78 };