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_VALUEARRAYKLASS_HPP
26 #define SHARE_VM_OOPS_VALUEARRAYKLASS_HPP
27
28 #include "classfile/classLoaderData.hpp"
29 #include "oops/arrayKlass.hpp"
30 #include "oops/valueKlass.hpp"
31 #include "utilities/macros.hpp"
32
33 /**
34 * Array of values, gives a layout of typeArrayOop, but needs oops iterators
35 */
36 class ValueArrayKlass : public ArrayKlass {
37 friend class VMStructs;
38 private:
39 ValueKlass* _element_klass; // The klass of the elements of this array type
40
41 // Constructor
42 ValueArrayKlass(Klass* element_klass, Symbol* name);
43 void set_element_klass(ValueKlass* k);
44
45 static ValueArrayKlass* allocate_klass(Klass* element_klass, Symbol* name, TRAPS);
46 protected:
47 // Returns the ArrayKlass for n'th dimension.
48 Klass* array_klass_impl(bool or_null, int n, TRAPS);
49
50 // Returns the array class with this class as element type.
51 Klass* array_klass_impl(bool or_null, TRAPS);
52
53 public:
54
55 ValueArrayKlass() {}
56
57 // Casting from Klass*
58 static ValueArrayKlass* cast(Klass* k) {
59 assert(k->is_valueArray_klass(), "cast to ValueArrayKlass");
60 return (ValueArrayKlass*) k;
61 }
62
63 // klass allocation
64 static ValueArrayKlass* allocate_klass(Klass* element_klass, TRAPS);
65
66 void initialize(TRAPS);
67
68 // Instance variables
69 ValueKlass* element_klass() const { return _element_klass; }
70 ValueKlass** element_klass_addr() { return &_element_klass; }
71
72 ModuleEntry* module() const;
73 PackageEntry* package() const;
74
75 int element_byte_size() const { return 1 << layout_helper_log2_element_size(_layout_helper); }
76
77 bool is_valueArray_klass_slow() const { return true; }
78
79 bool contains_oops() { return element_klass()->contains_oops(); }
80 bool is_atomic() { return element_klass()->is_atomic(); }
81
82 oop protection_domain() const;
83
84 static jint array_layout_helper(ValueKlass* vklass); // layout helper for values
85
86 // sizing
87 static int header_size() { return sizeof(ValueArrayKlass)/HeapWordSize; }
88 int size() const { return ArrayKlass::static_size(header_size()); }
89
90 jint max_elements() const;
91
92 int oop_size(oop obj) const;
93
94 // Oop Allocation
95 oop allocate(int length, bool do_zero, TRAPS);
96 oop multi_allocate(int rank, jint* sizes, TRAPS);
97
98 // Naming
99 const char* internal_name() const { return external_name(); }
100
101 // Copying
102 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
103
104 // Compiler/Interpreter offset
105 static ByteSize element_klass_offset() { return in_ByteSize(offset_of(ValueArrayKlass, _element_klass)); }
106
107 // GC specific object visitors
108 //
109 // Mark Sweep
110 int oop_ms_adjust_pointers(oop obj);
111
112 #if INCLUDE_ALL_GCS
113 // Parallel Scavenge
114 void oop_ps_push_contents( oop obj, PSPromotionManager* pm);
115 // Parallel Compact
116 void oop_pc_follow_contents(oop obj, ParCompactionManager* cm);
117 void oop_pc_update_pointers(oop obj, ParCompactionManager* cm);
118 #endif
119
120 CMH("Oop iterators. Don't have embedded oops yet, so CMH...")
121
122 private:
123 template <bool nv, typename OopClosureType>
124 inline void oop_oop_iterate(oop obj, OopClosureType* closure);
125 template <bool nv, typename OopClosureType>
|
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_VALUEARRAYKLASS_HPP
26 #define SHARE_VM_OOPS_VALUEARRAYKLASS_HPP
27
28 #include "classfile/classLoaderData.hpp"
29 #include "oops/arrayKlass.hpp"
30 #include "oops/valueKlass.hpp"
31 #include "utilities/macros.hpp"
32
33 /**
34 * Array of values, gives a layout of typeArrayOop, but needs oops iterators
35 */
36 class ValueArrayKlass : public ArrayKlass {
37 friend class VMStructs;
38 private:
39 // Constructor
40 ValueArrayKlass(Klass* element_klass, Symbol* name);
41
42 static ValueArrayKlass* allocate_klass(Klass* element_klass, Symbol* name, TRAPS);
43 protected:
44 // Returns the ArrayKlass for n'th dimension.
45 Klass* array_klass_impl(bool or_null, int n, TRAPS);
46
47 // Returns the array class with this class as element type.
48 Klass* array_klass_impl(bool or_null, TRAPS);
49
50 public:
51
52 ValueArrayKlass() {}
53
54 virtual ValueKlass* element_klass() const;
55 virtual void set_element_klass(Klass* k);
56
57 // Casting from Klass*
58 static ValueArrayKlass* cast(Klass* k) {
59 assert(k->is_valueArray_klass(), "cast to ValueArrayKlass");
60 return (ValueArrayKlass*) k;
61 }
62
63 // klass allocation
64 static ValueArrayKlass* allocate_klass(Klass* element_klass, TRAPS);
65
66 void initialize(TRAPS);
67
68 ModuleEntry* module() const;
69 PackageEntry* package() const;
70
71 int element_byte_size() const { return 1 << layout_helper_log2_element_size(_layout_helper); }
72
73 bool is_valueArray_klass_slow() const { return true; }
74
75 bool contains_oops() {
76 return element_klass()->contains_oops();
77 }
78
79 bool is_atomic() {
80 return element_klass()->is_atomic();
81 }
82
83 oop protection_domain() const;
84
85 static jint array_layout_helper(ValueKlass* vklass); // layout helper for values
86
87 // sizing
88 static int header_size() { return sizeof(ValueArrayKlass)/HeapWordSize; }
89 int size() const { return ArrayKlass::static_size(header_size()); }
90
91 jint max_elements() const;
92
93 int oop_size(oop obj) const;
94
95 // Oop Allocation
96 oop allocate(int length, bool do_zero, TRAPS);
97 oop multi_allocate(int rank, jint* sizes, TRAPS);
98
99 // Naming
100 const char* internal_name() const { return external_name(); }
101
102 // Copying
103 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
104
105 // GC specific object visitors
106 //
107 // Mark Sweep
108 int oop_ms_adjust_pointers(oop obj);
109
110 #if INCLUDE_ALL_GCS
111 // Parallel Scavenge
112 void oop_ps_push_contents( oop obj, PSPromotionManager* pm);
113 // Parallel Compact
114 void oop_pc_follow_contents(oop obj, ParCompactionManager* cm);
115 void oop_pc_update_pointers(oop obj, ParCompactionManager* cm);
116 #endif
117
118 CMH("Oop iterators. Don't have embedded oops yet, so CMH...")
119
120 private:
121 template <bool nv, typename OopClosureType>
122 inline void oop_oop_iterate(oop obj, OopClosureType* closure);
123 template <bool nv, typename OopClosureType>
|