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comparison src/share/vm/oops/oop.inline.hpp @ 14518:d8041d695d19

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Merged with jdk9/dev/hotspot changeset 3812c088b945
author twisti
date Tue, 11 Mar 2014 18:45:59 -0700
parents cefad50507d8 7f0e0366ec81
children 4ca6dc0799b6
comparison
equal deleted inserted replaced
14141:f97c5ec83832 14518:d8041d695d19
145 145
146 inline void oopDesc::init_mark() { set_mark(markOopDesc::prototype_for_object(this)); } 146 inline void oopDesc::init_mark() { set_mark(markOopDesc::prototype_for_object(this)); }
147 147
148 inline bool oopDesc::is_a(Klass* k) const { return klass()->is_subtype_of(k); } 148 inline bool oopDesc::is_a(Klass* k) const { return klass()->is_subtype_of(k); }
149 149
150 inline bool oopDesc::is_instance() const { return klass()->oop_is_instance(); } 150 inline bool oopDesc::is_instance() const { return klass()->oop_is_instance(); }
151 inline bool oopDesc::is_instanceMirror() const { return klass()->oop_is_instanceMirror(); } 151 inline bool oopDesc::is_instanceClassLoader() const { return klass()->oop_is_instanceClassLoader(); }
152 inline bool oopDesc::is_instanceRef() const { return klass()->oop_is_instanceRef(); } 152 inline bool oopDesc::is_instanceMirror() const { return klass()->oop_is_instanceMirror(); }
153 inline bool oopDesc::is_array() const { return klass()->oop_is_array(); } 153 inline bool oopDesc::is_instanceRef() const { return klass()->oop_is_instanceRef(); }
154 inline bool oopDesc::is_objArray() const { return klass()->oop_is_objArray(); } 154 inline bool oopDesc::is_array() const { return klass()->oop_is_array(); }
155 inline bool oopDesc::is_typeArray() const { return klass()->oop_is_typeArray(); } 155 inline bool oopDesc::is_objArray() const { return klass()->oop_is_objArray(); }
156 inline bool oopDesc::is_typeArray() const { return klass()->oop_is_typeArray(); }
156 157
157 inline void* oopDesc::field_base(int offset) const { return (void*)&((char*)this)[offset]; } 158 inline void* oopDesc::field_base(int offset) const { return (void*)&((char*)this)[offset]; }
158 159
159 template <class T> inline T* oopDesc::obj_field_addr(int offset) const { return (T*)field_base(offset); } 160 template <class T> inline T* oopDesc::obj_field_addr(int offset) const { return (T*)field_base(offset); }
160 inline Metadata** oopDesc::metadata_field_addr(int offset) const { return (Metadata**)field_base(offset); } 161 inline Metadata** oopDesc::metadata_field_addr(int offset) const { return (Metadata**)field_base(offset); }
488 489
489 inline int oopDesc::size() { 490 inline int oopDesc::size() {
490 return size_given_klass(klass()); 491 return size_given_klass(klass());
491 } 492 }
492 493
493 inline void update_barrier_set(void* p, oop v) { 494 inline void update_barrier_set(void* p, oop v, bool release = false) {
494 assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!"); 495 assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!");
495 oopDesc::bs()->write_ref_field(p, v); 496 oopDesc::bs()->write_ref_field(p, v, release);
496 } 497 }
497 498
498 template <class T> inline void update_barrier_set_pre(T* p, oop v) { 499 template <class T> inline void update_barrier_set_pre(T* p, oop v) {
499 oopDesc::bs()->write_ref_field_pre(p, v); 500 oopDesc::bs()->write_ref_field_pre(p, v);
500 } 501 }
503 if (always_do_update_barrier) { 504 if (always_do_update_barrier) {
504 oop_store((volatile T*)p, v); 505 oop_store((volatile T*)p, v);
505 } else { 506 } else {
506 update_barrier_set_pre(p, v); 507 update_barrier_set_pre(p, v);
507 oopDesc::encode_store_heap_oop(p, v); 508 oopDesc::encode_store_heap_oop(p, v);
508 update_barrier_set((void*)p, v); // cast away type 509 // always_do_update_barrier == false =>
510 // Either we are at a safepoint (in GC) or CMS is not used. In both
511 // cases it's unnecessary to mark the card as dirty with release sematics.
512 update_barrier_set((void*)p, v, false /* release */); // cast away type
509 } 513 }
510 } 514 }
511 515
512 template <class T> inline void oop_store(volatile T* p, oop v) { 516 template <class T> inline void oop_store(volatile T* p, oop v) {
513 update_barrier_set_pre((T*)p, v); // cast away volatile 517 update_barrier_set_pre((T*)p, v); // cast away volatile
514 // Used by release_obj_field_put, so use release_store_ptr. 518 // Used by release_obj_field_put, so use release_store_ptr.
515 oopDesc::release_encode_store_heap_oop(p, v); 519 oopDesc::release_encode_store_heap_oop(p, v);
516 update_barrier_set((void*)p, v); // cast away type 520 // When using CMS we must mark the card corresponding to p as dirty
521 // with release sematics to prevent that CMS sees the dirty card but
522 // not the new value v at p due to reordering of the two
523 // stores. Note that CMS has a concurrent precleaning phase, where
524 // it reads the card table while the Java threads are running.
525 update_barrier_set((void*)p, v, true /* release */); // cast away type
517 } 526 }
518 527
519 // Should replace *addr = oop assignments where addr type depends on UseCompressedOops 528 // Should replace *addr = oop assignments where addr type depends on UseCompressedOops
520 // (without having to remember the function name this calls). 529 // (without having to remember the function name this calls).
521 inline void oop_store_raw(HeapWord* addr, oop value) { 530 inline void oop_store_raw(HeapWord* addr, oop value) {