1 #ifdef USE_PRAGMA_IDENT_HDR 2 #pragma ident "@(#)constantPoolKlass.hpp 1.51 07/05/29 09:44:18 JVM" 3 #endif 4 /* 5 * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. 6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 7 * 8 * This code is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License version 2 only, as 10 * published by the Free Software Foundation. 11 * 12 * This code is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * version 2 for more details (a copy is included in the LICENSE file that 16 * accompanied this code). 17 * 18 * You should have received a copy of the GNU General Public License version 19 * 2 along with this work; if not, write to the Free Software Foundation, 20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 23 * CA 95054 USA or visit www.sun.com if you need additional information or 24 * have any questions. 25 * 26 */ 27 28 // A constantPoolKlass is the klass of a constantPoolOop 29 30 class constantPoolKlass : public arrayKlass { 31 public: 32 // Dispatched klass operations 33 bool oop_is_constantPool() const { return true; } 34 int oop_size(oop obj) const; 35 int klass_oop_size() const { return object_size(); } 36 37 // Allocation 38 DEFINE_ALLOCATE_PERMANENT(constantPoolKlass); 39 constantPoolOop allocate(int length, TRAPS); 40 static klassOop create_klass(TRAPS); 41 42 // Casting from klassOop 43 static constantPoolKlass* cast(klassOop k) { 44 assert(k->klass_part()->oop_is_constantPool(), "cast to constantPoolKlass"); 45 return (constantPoolKlass*) k->klass_part(); 46 } 47 48 // Sizing 49 static int header_size() { return oopDesc::header_size() + sizeof(constantPoolKlass)/HeapWordSize; } 50 int object_size() const { return arrayKlass::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 #ifndef PRODUCT 64 public: 65 // Printing 66 void oop_print_on(oop obj, outputStream* st); 67 #endif 68 69 public: 70 // Verification 71 const char* internal_name() const; 72 void oop_verify_on(oop obj, outputStream* st); 73 // tells whether obj is partially constructed (gc during class loading) 74 bool oop_partially_loaded(oop obj) const; 75 void oop_set_partially_loaded(oop obj); 76 #ifndef PRODUCT 77 // Compile the world support 78 static void preload_and_initialize_all_classes(oop constant_pool, TRAPS); 79 #endif 80 }; 81