Mercurial > hg > truffle

comparison src/share/vm/oops/objArrayKlass.hpp @ 6725:da91efe96a93

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents b632e80fc9dc
children d8ce2825b193
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
23 */ 23 */
24 24
25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASS_HPP 25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASS_HPP
26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP 26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP
27 27
28 #include "classfile/classLoaderData.hpp"
28 #include "memory/specialized_oop_closures.hpp" 29 #include "memory/specialized_oop_closures.hpp"
29 #include "oops/arrayKlass.hpp" 30 #include "oops/arrayKlass.hpp"
30 #include "oops/instanceKlass.hpp"
31 31
32 // objArrayKlass is the klass for objArrays 32 // objArrayKlass is the klass for objArrays
33 33
34 class objArrayKlass : public arrayKlass { 34 class objArrayKlass : public arrayKlass {
35 friend class VMStructs; 35 friend class VMStructs;
36 private: 36 private:
37 klassOop _element_klass; // The klass of the elements of this array type 37 Klass* _element_klass; // The klass of the elements of this array type
38 klassOop _bottom_klass; // The one-dimensional type (instanceKlass or typeArrayKlass) 38 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or typeArrayKlass)
39
40 // Constructor
41 objArrayKlass(int n, KlassHandle element_klass, Symbol* name);
42 static objArrayKlass* allocate(ClassLoaderData* loader_data, int n, KlassHandle klass_handle, Symbol* name, TRAPS);
39 public: 43 public:
44 // For dummy objects
45 objArrayKlass() {}
46
40 // Instance variables 47 // Instance variables
41 klassOop element_klass() const { return _element_klass; } 48 Klass* element_klass() const { return _element_klass; }
42 void set_element_klass(klassOop k) { oop_store_without_check((oop*) &_element_klass, (oop) k); } 49 void set_element_klass(Klass* k) { _element_klass = k; }
43 oop* element_klass_addr() { return (oop*)&_element_klass; } 50 Klass** element_klass_addr() { return &_element_klass; }
44 51
45 klassOop bottom_klass() const { return _bottom_klass; } 52 Klass* bottom_klass() const { return _bottom_klass; }
46 void set_bottom_klass(klassOop k) { oop_store_without_check((oop*) &_bottom_klass, (oop) k); } 53 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
47 oop* bottom_klass_addr() { return (oop*)&_bottom_klass; } 54 Klass** bottom_klass_addr() { return &_bottom_klass; }
48 55
49 // Compiler/Interpreter offset 56 // Compiler/Interpreter offset
50 static ByteSize element_klass_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(objArrayKlass, _element_klass)); } 57 static ByteSize element_klass_offset() { return in_ByteSize(offset_of(objArrayKlass, _element_klass)); }
51 58
52 // Dispatched operation 59 // Dispatched operation
53 bool can_be_primary_super_slow() const; 60 bool can_be_primary_super_slow() const;
54 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS); 61 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots);
55 bool compute_is_subtype_of(klassOop k); 62 bool compute_is_subtype_of(Klass* k);
56 bool oop_is_objArray_slow() const { return true; } 63 bool oop_is_objArray_slow() const { return true; }
57 int oop_size(oop obj) const; 64 int oop_size(oop obj) const;
58 int klass_oop_size() const { return object_size(); }
59 65
60 // Allocation 66 // Allocation
61 DEFINE_ALLOCATE_PERMANENT(objArrayKlass); 67 static Klass* allocate_objArray_klass(ClassLoaderData* loader_data,
68 int n, KlassHandle element_klass, TRAPS);
69
62 objArrayOop allocate(int length, TRAPS); 70 objArrayOop allocate(int length, TRAPS);
63 oop multi_allocate(int rank, jint* sizes, TRAPS); 71 oop multi_allocate(int rank, jint* sizes, TRAPS);
64 72
65 // Copying 73 // Copying
66 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS); 74 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
67 75
68 // Compute protection domain 76 // Compute protection domain
69 oop protection_domain() { return Klass::cast(bottom_klass())->protection_domain(); } 77 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 78
73 private: 79 private:
74 // Either oop or narrowOop depending on UseCompressedOops. 80 // Either oop or narrowOop depending on UseCompressedOops.
75 // must be called from within objArrayKlass.cpp 81 // must be called from within objArrayKlass.cpp
76 template <class T> void do_copy(arrayOop s, T* src, arrayOop d, 82 template <class T> void do_copy(arrayOop s, T* src, arrayOop d,
77 T* dst, int length, TRAPS); 83 T* dst, int length, TRAPS);
78 protected: 84 protected:
79 // Returns the objArrayKlass for n'th dimension. 85 // Returns the objArrayKlass for n'th dimension.
80 virtual klassOop array_klass_impl(bool or_null, int n, TRAPS); 86 virtual Klass* array_klass_impl(bool or_null, int n, TRAPS);
81 87
82 // Returns the array class with this class as element type. 88 // Returns the array class with this class as element type.
83 virtual klassOop array_klass_impl(bool or_null, TRAPS); 89 virtual Klass* array_klass_impl(bool or_null, TRAPS);
84 90
85 public: 91 public:
86 // Casting from klassOop 92 // Casting from Klass*
87 static objArrayKlass* cast(klassOop k) { 93 static objArrayKlass* cast(Klass* k) {
88 assert(k->klass_part()->oop_is_objArray_slow(), "cast to objArrayKlass"); 94 assert(k->oop_is_objArray(), "cast to objArrayKlass");
89 return (objArrayKlass*) k->klass_part(); 95 return (objArrayKlass*) k;
90 } 96 }
91 97
92 // Sizing 98 // Sizing
93 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlass)/HeapWordSize; } 99 static int header_size() { return sizeof(objArrayKlass)/HeapWordSize; }
94 int object_size() const { return arrayKlass::object_size(header_size()); } 100 int size() const { return arrayKlass::static_size(header_size()); }
95 101
96 // Initialization (virtual from Klass) 102 // Initialization (virtual from Klass)
97 void initialize(TRAPS); 103 void initialize(TRAPS);
98 104
99 // Garbage collection 105 // Garbage collection
110 template <class T> inline void 116 template <class T> inline void
111 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index); 117 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index);
112 #endif // !SERIALGC 118 #endif // !SERIALGC
113 119
114 // Iterators 120 // Iterators
115 int oop_oop_iterate(oop obj, OopClosure* blk) { 121 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
116 return oop_oop_iterate_v(obj, blk); 122 return oop_oop_iterate_v(obj, blk);
117 } 123 }
118 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { 124 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
119 return oop_oop_iterate_v_m(obj, blk, mr); 125 return oop_oop_iterate_v_m(obj, blk, mr);
120 } 126 }
121 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ 127 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
122 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ 128 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
123 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \ 129 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \
129 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL) 135 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
130 136
131 // JVM support 137 // JVM support
132 jint compute_modifier_flags(TRAPS) const; 138 jint compute_modifier_flags(TRAPS) const;
133 139
134 private:
135 static klassOop array_klass_impl (objArrayKlassHandle this_oop, bool or_null, int n, TRAPS);
136
137 public: 140 public:
138 // Printing 141 // Printing
142 void print_on(outputStream* st) const;
143 void print_value_on(outputStream* st) const;
144
139 void oop_print_value_on(oop obj, outputStream* st); 145 void oop_print_value_on(oop obj, outputStream* st);
140 #ifndef PRODUCT 146 #ifndef PRODUCT
141 void oop_print_on (oop obj, outputStream* st); 147 void oop_print_on (oop obj, outputStream* st);
142 #endif //PRODUCT 148 #endif //PRODUCT
143 149
150 const char* internal_name() const;
151
144 // Verification 152 // Verification
145 const char* internal_name() const; 153 void verify_on(outputStream* st);
154
146 void oop_verify_on(oop obj, outputStream* st); 155 void oop_verify_on(oop obj, outputStream* st);
147 }; 156 };
148 157
149 #endif // SHARE_VM_OOPS_OBJARRAYKLASS_HPP 158 #endif // SHARE_VM_OOPS_OBJARRAYKLASS_HPP