44 }
45
46 inline void Handle::replace(oop obj) {
47 // Unlike in OopHandle::replace, we shouldn't use a barrier here.
48 // OopHandle has its storage in OopStorage, which is walked concurrently and uses barriers.
49 // Handle is thread private, and iterated by Thread::oops_do, which is why it shouldn't have any barriers at all.
50 assert(_handle != nullptr, "should not use replace");
51 *_handle = obj;
52 }
53
54 // Inline constructors for Specific Handles for different oop types
55 #define DEF_HANDLE_CONSTR(type, is_a) \
56 inline type##Handle::type##Handle (Thread* thread, type##Oop obj) : Handle(thread, (oop)obj) { \
57 assert(is_null() || ((oop)obj)->is_a(), "illegal type"); \
58 }
59
60 DEF_HANDLE_CONSTR(instance , is_instance_noinline )
61 DEF_HANDLE_CONSTR(array , is_array_noinline )
62 DEF_HANDLE_CONSTR(objArray , is_objArray_noinline )
63 DEF_HANDLE_CONSTR(typeArray, is_typeArray_noinline)
64
65 // Constructor for metadata handles
66 #define DEF_METADATA_HANDLE_FN(name, type) \
67 inline name##Handle::name##Handle(Thread* thread, type* obj) : _value(obj), _thread(thread) { \
68 if (obj != nullptr) { \
69 assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
70 assert(_thread == Thread::current(), "thread must be current"); \
71 assert(_thread->is_in_live_stack((address)this), "not on stack?"); \
72 _thread->metadata_handles()->push((Metadata*)obj); \
73 } \
74 } \
75
76 DEF_METADATA_HANDLE_FN(method, Method)
77 DEF_METADATA_HANDLE_FN(constantPool, ConstantPool)
78
79 inline void HandleMark::push() {
80 // This is intentionally a NOP. pop_and_restore will reset
81 // values to the HandleMark further down the stack, typically
82 // in JavaCalls::call_helper.
83 debug_only(_area->_handle_mark_nesting++);
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44 }
45
46 inline void Handle::replace(oop obj) {
47 // Unlike in OopHandle::replace, we shouldn't use a barrier here.
48 // OopHandle has its storage in OopStorage, which is walked concurrently and uses barriers.
49 // Handle is thread private, and iterated by Thread::oops_do, which is why it shouldn't have any barriers at all.
50 assert(_handle != nullptr, "should not use replace");
51 *_handle = obj;
52 }
53
54 // Inline constructors for Specific Handles for different oop types
55 #define DEF_HANDLE_CONSTR(type, is_a) \
56 inline type##Handle::type##Handle (Thread* thread, type##Oop obj) : Handle(thread, (oop)obj) { \
57 assert(is_null() || ((oop)obj)->is_a(), "illegal type"); \
58 }
59
60 DEF_HANDLE_CONSTR(instance , is_instance_noinline )
61 DEF_HANDLE_CONSTR(array , is_array_noinline )
62 DEF_HANDLE_CONSTR(objArray , is_objArray_noinline )
63 DEF_HANDLE_CONSTR(typeArray, is_typeArray_noinline)
64 DEF_HANDLE_CONSTR(flatArray, is_flatArray_noinline)
65
66 // Constructor for metadata handles
67 #define DEF_METADATA_HANDLE_FN(name, type) \
68 inline name##Handle::name##Handle(Thread* thread, type* obj) : _value(obj), _thread(thread) { \
69 if (obj != nullptr) { \
70 assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
71 assert(_thread == Thread::current(), "thread must be current"); \
72 assert(_thread->is_in_live_stack((address)this), "not on stack?"); \
73 _thread->metadata_handles()->push((Metadata*)obj); \
74 } \
75 } \
76
77 DEF_METADATA_HANDLE_FN(method, Method)
78 DEF_METADATA_HANDLE_FN(constantPool, ConstantPool)
79
80 inline void HandleMark::push() {
81 // This is intentionally a NOP. pop_and_restore will reset
82 // values to the HandleMark further down the stack, typically
83 // in JavaCalls::call_helper.
84 debug_only(_area->_handle_mark_nesting++);
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