31 #include "oops/weakHandle.inline.hpp"
32 #include "utilities/debug.hpp"
33 #include "utilities/ostream.hpp"
34
35 template <> OopStorage* WeakHandle<vm_class_loader_data>::get_storage() {
36 return SystemDictionary::vm_weak_oop_storage();
37 }
38
39 template <> OopStorage* WeakHandle<vm_string_table_data>::get_storage() {
40 return StringTable::weak_storage();
41 }
42
43 template <WeakHandleType T>
44 WeakHandle<T> WeakHandle<T>::create(Handle obj) {
45 assert(obj() != NULL, "no need to create weak null oop");
46 oop* oop_addr = get_storage()->allocate();
47 if (oop_addr == NULL) {
48 vm_exit_out_of_memory(sizeof(oop*), OOM_MALLOC_ERROR, "Unable to create new weak oop handle in OopStorage");
49 }
50 // Create WeakHandle with address returned and store oop into it.
51 RootAccess<ON_PHANTOM_OOP_REF>::oop_store(oop_addr, obj());
52 return WeakHandle(oop_addr);
53 }
54
55 template <WeakHandleType T>
56 void WeakHandle<T>::release() const {
57 // Only release if the pointer to the object has been created.
58 if (_obj != NULL) {
59 // Clear the WeakHandle. For race in creating ClassLoaderData, we can release this
60 // WeakHandle before it is cleared by GC.
61 RootAccess<ON_PHANTOM_OOP_REF>::oop_store(_obj, (oop)NULL);
62 get_storage()->release(_obj);
63 }
64 }
65
66 template <WeakHandleType T>
67 void WeakHandle<T>::print() const { print_on(tty); }
68
69 template <WeakHandleType T>
70 void WeakHandle<T>::print_on(outputStream* st) const {
71 st->print("WeakHandle: " PTR_FORMAT, p2i(peek()));
72 }
73
74 // Provide instantiation.
75 template class WeakHandle<vm_class_loader_data>;
76 template class WeakHandle<vm_string_table_data>;
77
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31 #include "oops/weakHandle.inline.hpp"
32 #include "utilities/debug.hpp"
33 #include "utilities/ostream.hpp"
34
35 template <> OopStorage* WeakHandle<vm_class_loader_data>::get_storage() {
36 return SystemDictionary::vm_weak_oop_storage();
37 }
38
39 template <> OopStorage* WeakHandle<vm_string_table_data>::get_storage() {
40 return StringTable::weak_storage();
41 }
42
43 template <WeakHandleType T>
44 WeakHandle<T> WeakHandle<T>::create(Handle obj) {
45 assert(obj() != NULL, "no need to create weak null oop");
46 oop* oop_addr = get_storage()->allocate();
47 if (oop_addr == NULL) {
48 vm_exit_out_of_memory(sizeof(oop*), OOM_MALLOC_ERROR, "Unable to create new weak oop handle in OopStorage");
49 }
50 // Create WeakHandle with address returned and store oop into it.
51 NativeAccess<ON_PHANTOM_OOP_REF>::oop_store(oop_addr, obj());
52 return WeakHandle(oop_addr);
53 }
54
55 template <WeakHandleType T>
56 void WeakHandle<T>::release() const {
57 // Only release if the pointer to the object has been created.
58 if (_obj != NULL) {
59 // Clear the WeakHandle. For race in creating ClassLoaderData, we can release this
60 // WeakHandle before it is cleared by GC.
61 NativeAccess<ON_PHANTOM_OOP_REF>::oop_store(_obj, (oop)NULL);
62 get_storage()->release(_obj);
63 }
64 }
65
66 template <WeakHandleType T>
67 void WeakHandle<T>::print() const { print_on(tty); }
68
69 template <WeakHandleType T>
70 void WeakHandle<T>::print_on(outputStream* st) const {
71 st->print("WeakHandle: " PTR_FORMAT, p2i(peek()));
72 }
73
74 // Provide instantiation.
75 template class WeakHandle<vm_class_loader_data>;
76 template class WeakHandle<vm_string_table_data>;
77
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