1 /* 2 * Copyright (c) 2010, 2018, 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_OBJARRAYKLASS_INLINE_HPP 26 #define SHARE_VM_OOPS_OBJARRAYKLASS_INLINE_HPP 27 28 #include "memory/memRegion.hpp" 29 #include "memory/iterator.inline.hpp" 30 #include "oops/arrayOop.inline.hpp" 31 #include "oops/arrayKlass.hpp" 32 #include "oops/klass.hpp" 33 #include "oops/objArrayKlass.hpp" 34 #include "oops/objArrayOop.inline.hpp" 35 #include "oops/oop.inline.hpp" 36 #include "utilities/macros.hpp" 37 38 template <bool nv, typename T, class OopClosureType> 39 void ObjArrayKlass::oop_oop_iterate_elements_specialized(objArrayOop a, OopClosureType* closure) { 40 T* p = (T*)a->base_raw(); 41 T* const end = p + a->length(); 42 43 for (;p < end; p++) { 44 Devirtualizer<nv>::do_oop(closure, p); 45 } 46 } 47 48 template <bool nv, typename T, class OopClosureType> 49 void ObjArrayKlass::oop_oop_iterate_elements_specialized_bounded( 50 objArrayOop a, OopClosureType* closure, void* low, void* high) { 51 52 T* const l = (T*)low; 53 T* const h = (T*)high; 54 55 T* p = (T*)a->base_raw(); 56 T* end = p + a->length(); 57 58 if (p < l) { 59 p = l; 60 } 61 if (end > h) { 62 end = h; 63 } 64 65 for (;p < end; ++p) { 66 Devirtualizer<nv>::do_oop(closure, p); 67 } 68 } 69 70 template <bool nv, class OopClosureType> 71 void ObjArrayKlass::oop_oop_iterate_elements(objArrayOop a, OopClosureType* closure) { 72 if (UseCompressedOops) { 73 oop_oop_iterate_elements_specialized<nv, narrowOop>(a, closure); 74 } else { 75 oop_oop_iterate_elements_specialized<nv, oop>(a, closure); 76 } 77 } 78 79 template <bool nv, class OopClosureType> 80 void ObjArrayKlass::oop_oop_iterate_elements_bounded(objArrayOop a, OopClosureType* closure, MemRegion mr) { 81 if (UseCompressedOops) { 82 oop_oop_iterate_elements_specialized_bounded<nv, narrowOop>(a, closure, mr.start(), mr.end()); 83 } else { 84 oop_oop_iterate_elements_specialized_bounded<nv, oop>(a, closure, mr.start(), mr.end()); 85 } 86 } 87 88 template <bool nv, typename OopClosureType> 89 void ObjArrayKlass::oop_oop_iterate(oop obj, OopClosureType* closure) { 90 assert (obj->is_array(), "obj must be array"); 91 objArrayOop a = objArrayOop(obj); 92 93 if (Devirtualizer<nv>::do_metadata(closure)) { 94 Devirtualizer<nv>::do_klass(closure, obj->klass()); 95 } 96 97 oop_oop_iterate_elements<nv>(a, closure); 98 } 99 100 template <bool nv, typename OopClosureType> 101 void ObjArrayKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) { 102 assert(obj->is_array(), "obj must be array"); 103 objArrayOop a = objArrayOop(obj); 104 105 if (Devirtualizer<nv>::do_metadata(closure)) { 106 Devirtualizer<nv>::do_klass(closure, a->klass()); 107 } 108 109 oop_oop_iterate_elements_bounded<nv>(a, closure, mr); 110 } 111 112 template <bool nv, typename T, class OopClosureType> 113 void ObjArrayKlass::oop_oop_iterate_range_specialized(objArrayOop a, OopClosureType* closure, int start, int end) { 114 T* low = start == 0 ? cast_from_oop<T*>(a) : a->obj_at_addr_raw<T>(start); 115 T* high = (T*)a->base_raw() + end; 116 117 oop_oop_iterate_elements_specialized_bounded<nv, T>(a, closure, low, high); 118 } 119 120 // Like oop_oop_iterate but only iterates over a specified range and only used 121 // for objArrayOops. 122 template <bool nv, class OopClosureType> 123 void ObjArrayKlass::oop_oop_iterate_range(oop obj, OopClosureType* closure, int start, int end) { 124 assert(obj->is_array(), "obj must be array"); 125 objArrayOop a = objArrayOop(obj); 126 127 if (UseCompressedOops) { 128 oop_oop_iterate_range_specialized<nv, narrowOop>(a, closure, start, end); 129 } else { 130 oop_oop_iterate_range_specialized<nv, oop>(a, closure, start, end); 131 } 132 } 133 134 #define ALL_OBJ_ARRAY_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ 135 OOP_OOP_ITERATE_DEFN( ObjArrayKlass, OopClosureType, nv_suffix) \ 136 OOP_OOP_ITERATE_DEFN_BOUNDED( ObjArrayKlass, OopClosureType, nv_suffix) \ 137 OOP_OOP_ITERATE_DEFN_RANGE( ObjArrayKlass, OopClosureType, nv_suffix) \ 138 OOP_OOP_ITERATE_DEFN_NO_BACKWARDS(ObjArrayKlass, OopClosureType, nv_suffix) 139 140 #endif // SHARE_VM_OOPS_OBJARRAYKLASS_INLINE_HPP