Mercurial > hg > truffle
annotate src/share/vm/oops/objArrayKlass.hpp @ 4970:33df1aeaebbf
Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Mon, 27 Feb 2012 13:10:13 +0100 |
| parents | 069ab3f976d3 |
| children | b632e80fc9dc |
| rev | line source |
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| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASS_HPP |
| 26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP | |
| 27 | |
| 28 #include "memory/specialized_oop_closures.hpp" | |
| 29 #include "oops/arrayKlass.hpp" | |
| 30 #include "oops/instanceKlass.hpp" | |
| 31 | |
| 0 | 32 // objArrayKlass is the klass for objArrays |
| 33 | |
| 34 class objArrayKlass : public arrayKlass { | |
| 35 friend class VMStructs; | |
| 36 private: | |
| 37 klassOop _element_klass; // The klass of the elements of this array type | |
| 38 klassOop _bottom_klass; // The one-dimensional type (instanceKlass or typeArrayKlass) | |
| 39 public: | |
| 40 // Instance variables | |
| 41 klassOop element_klass() const { return _element_klass; } | |
| 42 void set_element_klass(klassOop k) { oop_store_without_check((oop*) &_element_klass, (oop) k); } | |
| 43 oop* element_klass_addr() { return (oop*)&_element_klass; } | |
| 44 | |
| 45 klassOop bottom_klass() const { return _bottom_klass; } | |
| 46 void set_bottom_klass(klassOop k) { oop_store_without_check((oop*) &_bottom_klass, (oop) k); } | |
| 47 oop* bottom_klass_addr() { return (oop*)&_bottom_klass; } | |
| 48 | |
| 49 // Compiler/Interpreter offset | |
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50 static ByteSize element_klass_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(objArrayKlass, _element_klass)); } |
| 0 | 51 |
| 52 // Dispatched operation | |
| 53 bool can_be_primary_super_slow() const; | |
| 54 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS); | |
| 55 bool compute_is_subtype_of(klassOop k); | |
| 56 bool oop_is_objArray_slow() const { return true; } | |
| 57 int oop_size(oop obj) const; | |
| 58 int klass_oop_size() const { return object_size(); } | |
| 59 | |
| 60 // Allocation | |
| 61 DEFINE_ALLOCATE_PERMANENT(objArrayKlass); | |
| 62 objArrayOop allocate(int length, TRAPS); | |
| 63 oop multi_allocate(int rank, jint* sizes, TRAPS); | |
| 64 | |
| 65 // Copying | |
| 66 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS); | |
| 67 | |
| 68 // Compute protection domain | |
| 69 oop protection_domain() { return Klass::cast(bottom_klass())->protection_domain(); } | |
| 70 // Compute class loader | |
| 71 oop class_loader() const { return Klass::cast(bottom_klass())->class_loader(); } | |
| 72 | |
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73 private: |
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74 // Either oop or narrowOop depending on UseCompressedOops. |
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75 // must be called from within objArrayKlass.cpp |
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76 template <class T> void do_copy(arrayOop s, T* src, arrayOop d, |
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77 T* dst, int length, TRAPS); |
| 0 | 78 protected: |
| 79 // Returns the objArrayKlass for n'th dimension. | |
| 80 virtual klassOop array_klass_impl(bool or_null, int n, TRAPS); | |
| 81 | |
| 82 // Returns the array class with this class as element type. | |
| 83 virtual klassOop array_klass_impl(bool or_null, TRAPS); | |
| 84 | |
| 85 public: | |
| 86 // Casting from klassOop | |
| 87 static objArrayKlass* cast(klassOop k) { | |
| 88 assert(k->klass_part()->oop_is_objArray_slow(), "cast to objArrayKlass"); | |
| 89 return (objArrayKlass*) k->klass_part(); | |
| 90 } | |
| 91 | |
| 92 // Sizing | |
| 93 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlass)/HeapWordSize; } | |
| 94 int object_size() const { return arrayKlass::object_size(header_size()); } | |
| 95 | |
| 96 // Initialization (virtual from Klass) | |
| 97 void initialize(TRAPS); | |
| 98 | |
| 99 // Garbage collection | |
| 100 void oop_follow_contents(oop obj); | |
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101 inline void oop_follow_contents(oop obj, int index); |
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102 template <class T> inline void objarray_follow_contents(oop obj, int index); |
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103 |
| 0 | 104 int oop_adjust_pointers(oop obj); |
| 105 | |
| 106 // Parallel Scavenge and Parallel Old | |
| 107 PARALLEL_GC_DECLS | |
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108 #ifndef SERIALGC |
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109 inline void oop_follow_contents(ParCompactionManager* cm, oop obj, int index); |
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110 template <class T> inline void |
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111 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index); |
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112 #endif // !SERIALGC |
| 0 | 113 |
| 114 // Iterators | |
| 115 int oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 116 return oop_oop_iterate_v(obj, blk); | |
| 117 } | |
| 118 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 119 return oop_oop_iterate_v_m(obj, blk, mr); | |
| 120 } | |
| 121 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ | |
| 122 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ | |
| 123 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \ | |
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124 MemRegion mr); \ |
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125 int oop_oop_iterate_range##nv_suffix(oop obj, OopClosureType* blk, \ |
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126 int start, int end); |
| 0 | 127 |
| 128 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DECL) | |
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129 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL) |
| 0 | 130 |
| 131 // JVM support | |
| 132 jint compute_modifier_flags(TRAPS) const; | |
| 133 | |
| 134 private: | |
| 135 static klassOop array_klass_impl (objArrayKlassHandle this_oop, bool or_null, int n, TRAPS); | |
| 136 | |
| 137 public: | |
| 138 // Printing | |
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139 void oop_print_value_on(oop obj, outputStream* st); |
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140 #ifndef PRODUCT |
| 0 | 141 void oop_print_on (oop obj, outputStream* st); |
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142 #endif //PRODUCT |
| 0 | 143 |
| 144 // Verification | |
| 145 const char* internal_name() const; | |
| 146 void oop_verify_on(oop obj, outputStream* st); | |
| 147 void oop_verify_old_oop(oop obj, oop* p, bool allow_dirty); | |
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148 void oop_verify_old_oop(oop obj, narrowOop* p, bool allow_dirty); |
| 0 | 149 }; |
| 1972 | 150 |
| 151 #endif // SHARE_VM_OOPS_OBJARRAYKLASS_HPP |