1 /* 2 * Copyright (c) 2014, 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_MEMORY_ITERATOR_INLINE_HPP 26 #define SHARE_VM_MEMORY_ITERATOR_INLINE_HPP 27 28 #include "classfile/classLoaderData.hpp" 29 #include "memory/iterator.hpp" 30 #include "oops/klass.hpp" 31 #include "oops/instanceKlass.inline.hpp" 32 #include "oops/instanceMirrorKlass.inline.hpp" 33 #include "oops/instanceClassLoaderKlass.inline.hpp" 34 #include "oops/instanceRefKlass.inline.hpp" 35 #include "oops/objArrayKlass.inline.hpp" 36 #include "oops/typeArrayKlass.inline.hpp" 37 #include "utilities/debug.hpp" 38 39 inline void MetadataAwareOopClosure::do_cld_nv(ClassLoaderData* cld) { 40 assert(_klass_closure._oop_closure == this, "Must be"); 41 42 bool claim = true; // Must claim the class loader data before processing. 43 cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim); 44 } 45 46 inline void MetadataAwareOopClosure::do_klass_nv(Klass* k) { 47 ClassLoaderData* cld = k->class_loader_data(); 48 do_cld_nv(cld); 49 } 50 51 #ifdef ASSERT 52 // This verification is applied to all visited oops. 53 // The closures can turn is off by overriding should_verify_oops(). 54 template <typename T> 55 void ExtendedOopClosure::verify(T* p) { 56 if (should_verify_oops()) { 57 T heap_oop = oopDesc::load_heap_oop(p); 58 if (!oopDesc::is_null(heap_oop)) { 59 oop o = oopDesc::decode_heap_oop_not_null(heap_oop); 60 assert(Universe::heap()->is_in_closed_subset(o), 61 "should be in closed *p " PTR_FORMAT " " PTR_FORMAT, p2i(p), p2i(o)); 62 } 63 } 64 } 65 #endif 66 67 // Implementation of the non-virtual do_oop dispatch. 68 69 template <class OopClosureType, typename T> 70 inline void Devirtualizer<true>::do_oop(OopClosureType* closure, T* p) { 71 debug_only(closure->verify(p)); 72 closure->do_oop_nv(p); 73 } 74 template <class OopClosureType> 75 inline void Devirtualizer<true>::do_klass(OopClosureType* closure, Klass* k) { 76 closure->do_klass_nv(k); 77 } 78 template <class OopClosureType> 79 void Devirtualizer<true>::do_cld(OopClosureType* closure, ClassLoaderData* cld) { 80 closure->do_cld_nv(cld); 81 } 82 template <class OopClosureType> 83 inline bool Devirtualizer<true>::do_metadata(OopClosureType* closure) { 84 // Make sure the non-virtual and the virtual versions match. 85 assert(closure->do_metadata_nv() == closure->do_metadata(), "Inconsistency in do_metadata"); 86 return closure->do_metadata_nv(); 87 } 88 89 // Implementation of the virtual do_oop dispatch. 90 91 template <class OopClosureType, typename T> 92 void Devirtualizer<false>::do_oop(OopClosureType* closure, T* p) { 93 debug_only(closure->verify(p)); 94 closure->do_oop(p); 95 } 96 template <class OopClosureType> 97 void Devirtualizer<false>::do_klass(OopClosureType* closure, Klass* k) { 98 closure->do_klass(k); 99 } 100 template <class OopClosureType> 101 void Devirtualizer<false>::do_cld(OopClosureType* closure, ClassLoaderData* cld) { 102 closure->do_cld(cld); 103 } 104 template <class OopClosureType> 105 bool Devirtualizer<false>::do_metadata(OopClosureType* closure) { 106 return closure->do_metadata(); 107 } 108 109 // The list of all "specializable" oop_oop_iterate function definitions. 110 #define ALL_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ 111 ALL_INSTANCE_KLASS_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix) \ 112 ALL_INSTANCE_REF_KLASS_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix) \ 113 ALL_INSTANCE_MIRROR_KLASS_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix) \ 114 ALL_INSTANCE_CLASS_LOADER_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ 115 ALL_OBJ_ARRAY_KLASS_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix) \ 116 ALL_TYPE_ARRAY_KLASS_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix) 117 118 #endif // SHARE_VM_MEMORY_ITERATOR_INLINE_HPP