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src/hotspot/share/oops/klass.inline.hpp

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35 inline oop Klass::klass_holder() const {
36   return class_loader_data()->holder();
37 }
38 
39 inline bool Klass::is_non_strong_hidden() const {
40   return access_flags().is_hidden_class() &&
41          class_loader_data()->has_class_mirror_holder();
42 }
43 
44 // Iff the class loader (or mirror for non-strong hidden classes) is alive the
45 // Klass is considered alive. This is safe to call before the CLD is marked as
46 // unloading, and hence during concurrent class unloading.
47 // This returns false if the Klass is unloaded, or about to be unloaded because the holder of
48 // the CLD is no longer strongly reachable.
49 // The return value of this function may change from true to false after a safepoint. So the caller
50 // of this function must ensure that a safepoint doesn't happen while interpreting the return value.
51 inline bool Klass::is_loader_alive() const {
52   return class_loader_data()->is_alive();
53 }
54 




55 inline oop Klass::java_mirror() const {
56   return _java_mirror.resolve();
57 }
58 
59 inline klassVtable Klass::vtable() const {
60   return klassVtable(const_cast<Klass*>(this), start_of_vtable(), vtable_length() / vtableEntry::size());
61 }
62 
63 inline oop Klass::class_loader() const {
64   return class_loader_data()->class_loader();
65 }
66 
67 inline vtableEntry* Klass::start_of_vtable() const {
68   return (vtableEntry*) ((address)this + in_bytes(vtable_start_offset()));
69 }
70 
71 inline ByteSize Klass::vtable_start_offset() {
72   return in_ByteSize(InstanceKlass::header_size() * wordSize);
73 }
74 

35 inline oop Klass::klass_holder() const {
36   return class_loader_data()->holder();
37 }
38 
39 inline bool Klass::is_non_strong_hidden() const {
40   return access_flags().is_hidden_class() &&
41          class_loader_data()->has_class_mirror_holder();
42 }
43 
44 // Iff the class loader (or mirror for non-strong hidden classes) is alive the
45 // Klass is considered alive. This is safe to call before the CLD is marked as
46 // unloading, and hence during concurrent class unloading.
47 // This returns false if the Klass is unloaded, or about to be unloaded because the holder of
48 // the CLD is no longer strongly reachable.
49 // The return value of this function may change from true to false after a safepoint. So the caller
50 // of this function must ensure that a safepoint doesn't happen while interpreting the return value.
51 inline bool Klass::is_loader_alive() const {
52   return class_loader_data()->is_alive();
53 }
54 
55 inline void Klass::set_prototype_header(markWord header) {
56   _prototype_header = header;
57 }
58 
59 inline oop Klass::java_mirror() const {
60   return _java_mirror.resolve();
61 }
62 
63 inline klassVtable Klass::vtable() const {
64   return klassVtable(const_cast<Klass*>(this), start_of_vtable(), vtable_length() / vtableEntry::size());
65 }
66 
67 inline oop Klass::class_loader() const {
68   return class_loader_data()->class_loader();
69 }
70 
71 inline vtableEntry* Klass::start_of_vtable() const {
72   return (vtableEntry*) ((address)this + in_bytes(vtable_start_offset()));
73 }
74 
75 inline ByteSize Klass::vtable_start_offset() {
76   return in_ByteSize(InstanceKlass::header_size() * wordSize);
77 }
78 
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