rev 9803 : 8146401: Clean up oop.hpp: add inline directives and fix header files
1 /* 2 * Copyright (c) 2015, 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_INSTANCEREFKLASS_INLINE_HPP 26 #define SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP 27 28 #include "classfile/javaClasses.hpp" 29 #include "gc/shared/referenceProcessor.hpp" 30 #include "logging/log.hpp" 31 #include "oops/instanceKlass.inline.hpp" 32 #include "oops/instanceRefKlass.hpp" 33 #include "oops/oop.inline.hpp" 34 #include "utilities/debug.hpp" 35 #include "utilities/globalDefinitions.hpp" 36 #include "utilities/macros.hpp" 37 38 template <bool nv, typename T, class OopClosureType, class Contains> 39 void InstanceRefKlass::oop_oop_iterate_ref_processing_specialized(oop obj, OopClosureType* closure, Contains& contains) { 40 T* disc_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); 41 if (closure->apply_to_weak_ref_discovered_field()) { 42 Devirtualizer<nv>::do_oop(closure, disc_addr); 43 } 44 45 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); 46 T heap_oop = oopDesc::load_heap_oop(referent_addr); 47 ReferenceProcessor* rp = closure->ref_processor(); 48 if (!oopDesc::is_null(heap_oop)) { 49 oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); 50 if (!referent->is_gc_marked() && (rp != NULL) && 51 rp->discover_reference(obj, reference_type())) { 52 return; 53 } else if (contains(referent_addr)) { 54 // treat referent as normal oop 55 Devirtualizer<nv>::do_oop(closure, referent_addr); 56 } 57 } 58 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); 59 T next_oop = oopDesc::load_heap_oop(next_addr); 60 // Treat discovered as normal oop, if ref is not "active" (next non-NULL) 61 if (!oopDesc::is_null(next_oop) && contains(disc_addr)) { 62 // i.e. ref is not "active" 63 log_develop_trace(gc, ref)(" Process discovered as normal " PTR_FORMAT, p2i(disc_addr)); 64 Devirtualizer<nv>::do_oop(closure, disc_addr); 65 } 66 // treat next as normal oop 67 if (contains(next_addr)) { 68 Devirtualizer<nv>::do_oop(closure, next_addr); 69 } 70 } 71 72 class AlwaysContains { 73 public: 74 template <typename T> bool operator()(T* p) const { return true; } 75 }; 76 77 template <bool nv, class OopClosureType> 78 void InstanceRefKlass::oop_oop_iterate_ref_processing(oop obj, OopClosureType* closure) { 79 AlwaysContains always_contains; 80 if (UseCompressedOops) { 81 oop_oop_iterate_ref_processing_specialized<nv, narrowOop>(obj, closure, always_contains); 82 } else { 83 oop_oop_iterate_ref_processing_specialized<nv, oop>(obj, closure, always_contains); 84 } 85 } 86 87 class MrContains { 88 const MemRegion _mr; 89 public: 90 MrContains(MemRegion mr) : _mr(mr) {} 91 template <typename T> bool operator()(T* p) const { return _mr.contains(p); } 92 }; 93 94 template <bool nv, class OopClosureType> 95 void InstanceRefKlass::oop_oop_iterate_ref_processing_bounded(oop obj, OopClosureType* closure, MemRegion mr) { 96 const MrContains contains(mr); 97 if (UseCompressedOops) { 98 oop_oop_iterate_ref_processing_specialized<nv, narrowOop>(obj, closure, contains); 99 } else { 100 oop_oop_iterate_ref_processing_specialized<nv, oop>(obj, closure, contains); 101 } 102 } 103 104 template <bool nv, class OopClosureType> 105 void InstanceRefKlass::oop_oop_iterate(oop obj, OopClosureType* closure) { 106 InstanceKlass::oop_oop_iterate<nv>(obj, closure); 107 108 oop_oop_iterate_ref_processing<nv>(obj, closure); 109 } 110 111 #if INCLUDE_ALL_GCS 112 template <bool nv, class OopClosureType> 113 void InstanceRefKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) { 114 InstanceKlass::oop_oop_iterate_reverse<nv>(obj, closure); 115 116 oop_oop_iterate_ref_processing<nv>(obj, closure); 117 } 118 #endif // INCLUDE_ALL_GCS 119 120 121 template <bool nv, class OopClosureType> 122 void InstanceRefKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) { 123 InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr); 124 125 oop_oop_iterate_ref_processing_bounded<nv>(obj, closure, mr); 126 } 127 128 // Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for 129 // all closures. Macros calling macros above for each oop size. 130 #define ALL_INSTANCE_REF_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ 131 OOP_OOP_ITERATE_DEFN( InstanceRefKlass, OopClosureType, nv_suffix) \ 132 OOP_OOP_ITERATE_DEFN_BOUNDED( InstanceRefKlass, OopClosureType, nv_suffix) \ 133 OOP_OOP_ITERATE_DEFN_BACKWARDS(InstanceRefKlass, OopClosureType, nv_suffix) 134 135 #endif // SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP --- EOF ---