66 *(markWord*)(((char*)mem) + mark_offset_in_bytes()) = m;
67 }
68
69 void oopDesc::release_set_mark(HeapWord* mem, markWord m) {
70 Atomic::release_store((markWord*)(((char*)mem) + mark_offset_in_bytes()), m);
71 }
72
73 void oopDesc::release_set_mark(markWord m) {
74 Atomic::release_store(&_mark, m);
75 }
76
77 markWord oopDesc::cas_set_mark(markWord new_mark, markWord old_mark) {
78 return Atomic::cmpxchg(&_mark, old_mark, new_mark);
79 }
80
81 markWord oopDesc::cas_set_mark(markWord new_mark, markWord old_mark, atomic_memory_order order) {
82 return Atomic::cmpxchg(&_mark, old_mark, new_mark, order);
83 }
84
85 void oopDesc::init_mark() {
86 set_mark(markWord::prototype());
87 }
88
89 Klass* oopDesc::klass() const {
90 if (UseCompressedClassPointers) {
91 return CompressedKlassPointers::decode_not_null(_metadata._compressed_klass);
92 } else {
93 return _metadata._klass;
94 }
95 }
96
97 Klass* oopDesc::klass_or_null() const {
98 if (UseCompressedClassPointers) {
99 return CompressedKlassPointers::decode(_metadata._compressed_klass);
100 } else {
101 return _metadata._klass;
102 }
103 }
104
105 Klass* oopDesc::klass_or_null_acquire() const {
106 if (UseCompressedClassPointers) {
192
193 assert(s == klass->oop_size(this) || size_might_change(), "wrong array object size");
194 } else {
195 // Must be zero, so bite the bullet and take the virtual call.
196 s = klass->oop_size(this);
197 }
198 }
199
200 assert(s > 0, "Oop size must be greater than zero, not " SIZE_FORMAT, s);
201 assert(is_object_aligned(s), "Oop size is not properly aligned: " SIZE_FORMAT, s);
202 return s;
203 }
204
205 bool oopDesc::is_instance() const { return klass()->is_instance_klass(); }
206 bool oopDesc::is_instanceRef() const { return klass()->is_reference_instance_klass(); }
207 bool oopDesc::is_stackChunk() const { return klass()->is_stack_chunk_instance_klass(); }
208 bool oopDesc::is_array() const { return klass()->is_array_klass(); }
209 bool oopDesc::is_objArray() const { return klass()->is_objArray_klass(); }
210 bool oopDesc::is_typeArray() const { return klass()->is_typeArray_klass(); }
211
212 template<typename T>
213 T* oopDesc::field_addr(int offset) const { return reinterpret_cast<T*>(cast_from_oop<intptr_t>(as_oop()) + offset); }
214
215 template <typename T>
216 size_t oopDesc::field_offset(T* p) const { return pointer_delta((void*)p, (void*)this, 1); }
217
218 template <DecoratorSet decorators>
219 inline oop oopDesc::obj_field_access(int offset) const { return HeapAccess<decorators>::oop_load_at(as_oop(), offset); }
220 inline oop oopDesc::obj_field(int offset) const { return HeapAccess<>::oop_load_at(as_oop(), offset); }
221
222 inline void oopDesc::obj_field_put(int offset, oop value) { HeapAccess<>::oop_store_at(as_oop(), offset, value); }
223 template <DecoratorSet decorators>
224 inline void oopDesc::obj_field_put_access(int offset, oop value) { HeapAccess<decorators>::oop_store_at(as_oop(), offset, value); }
225
226 inline jbyte oopDesc::byte_field(int offset) const { return *field_addr<jbyte>(offset); }
227 inline void oopDesc::byte_field_put(int offset, jbyte value) { *field_addr<jbyte>(offset) = value; }
228
229 inline jchar oopDesc::char_field(int offset) const { return *field_addr<jchar>(offset); }
230 inline void oopDesc::char_field_put(int offset, jchar value) { *field_addr<jchar>(offset) = value; }
231
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66 *(markWord*)(((char*)mem) + mark_offset_in_bytes()) = m;
67 }
68
69 void oopDesc::release_set_mark(HeapWord* mem, markWord m) {
70 Atomic::release_store((markWord*)(((char*)mem) + mark_offset_in_bytes()), m);
71 }
72
73 void oopDesc::release_set_mark(markWord m) {
74 Atomic::release_store(&_mark, m);
75 }
76
77 markWord oopDesc::cas_set_mark(markWord new_mark, markWord old_mark) {
78 return Atomic::cmpxchg(&_mark, old_mark, new_mark);
79 }
80
81 markWord oopDesc::cas_set_mark(markWord new_mark, markWord old_mark, atomic_memory_order order) {
82 return Atomic::cmpxchg(&_mark, old_mark, new_mark, order);
83 }
84
85 void oopDesc::init_mark() {
86 set_mark(Klass::default_prototype_header(klass()));
87 }
88
89 Klass* oopDesc::klass() const {
90 if (UseCompressedClassPointers) {
91 return CompressedKlassPointers::decode_not_null(_metadata._compressed_klass);
92 } else {
93 return _metadata._klass;
94 }
95 }
96
97 Klass* oopDesc::klass_or_null() const {
98 if (UseCompressedClassPointers) {
99 return CompressedKlassPointers::decode(_metadata._compressed_klass);
100 } else {
101 return _metadata._klass;
102 }
103 }
104
105 Klass* oopDesc::klass_or_null_acquire() const {
106 if (UseCompressedClassPointers) {
192
193 assert(s == klass->oop_size(this) || size_might_change(), "wrong array object size");
194 } else {
195 // Must be zero, so bite the bullet and take the virtual call.
196 s = klass->oop_size(this);
197 }
198 }
199
200 assert(s > 0, "Oop size must be greater than zero, not " SIZE_FORMAT, s);
201 assert(is_object_aligned(s), "Oop size is not properly aligned: " SIZE_FORMAT, s);
202 return s;
203 }
204
205 bool oopDesc::is_instance() const { return klass()->is_instance_klass(); }
206 bool oopDesc::is_instanceRef() const { return klass()->is_reference_instance_klass(); }
207 bool oopDesc::is_stackChunk() const { return klass()->is_stack_chunk_instance_klass(); }
208 bool oopDesc::is_array() const { return klass()->is_array_klass(); }
209 bool oopDesc::is_objArray() const { return klass()->is_objArray_klass(); }
210 bool oopDesc::is_typeArray() const { return klass()->is_typeArray_klass(); }
211
212 bool oopDesc::is_inline_type() const { return mark().is_inline_type(); }
213 #ifdef _LP64
214 bool oopDesc::is_flatArray() const {
215 markWord mrk = mark();
216 return (mrk.is_unlocked()) ? mrk.is_flat_array() : klass()->is_flatArray_klass();
217 }
218 bool oopDesc::is_null_free_array() const {
219 markWord mrk = mark();
220 return (mrk.is_unlocked()) ? mrk.is_null_free_array() : klass()->is_null_free_array_klass();
221 }
222 #else
223 bool oopDesc::is_flatArray() const { return klass()->is_flatArray_klass(); }
224 bool oopDesc::is_null_free_array() const { return klass()->is_null_free_array_klass(); }
225 #endif
226
227 template<typename T>
228 T* oopDesc::field_addr(int offset) const { return reinterpret_cast<T*>(cast_from_oop<intptr_t>(as_oop()) + offset); }
229
230 template <typename T>
231 size_t oopDesc::field_offset(T* p) const { return pointer_delta((void*)p, (void*)this, 1); }
232
233 template <DecoratorSet decorators>
234 inline oop oopDesc::obj_field_access(int offset) const { return HeapAccess<decorators>::oop_load_at(as_oop(), offset); }
235 inline oop oopDesc::obj_field(int offset) const { return HeapAccess<>::oop_load_at(as_oop(), offset); }
236
237 inline void oopDesc::obj_field_put(int offset, oop value) { HeapAccess<>::oop_store_at(as_oop(), offset, value); }
238 template <DecoratorSet decorators>
239 inline void oopDesc::obj_field_put_access(int offset, oop value) { HeapAccess<decorators>::oop_store_at(as_oop(), offset, value); }
240
241 inline jbyte oopDesc::byte_field(int offset) const { return *field_addr<jbyte>(offset); }
242 inline void oopDesc::byte_field_put(int offset, jbyte value) { *field_addr<jbyte>(offset) = value; }
243
244 inline jchar oopDesc::char_field(int offset) const { return *field_addr<jchar>(offset); }
245 inline void oopDesc::char_field_put(int offset, jchar value) { *field_addr<jchar>(offset) = value; }
246
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