1.1 --- a/src/share/vm/oops/instanceKlass.hpp Sat Nov 09 20:15:27 2019 +0800
1.2 +++ b/src/share/vm/oops/instanceKlass.hpp Sat Nov 09 20:29:45 2019 +0800
1.3 @@ -225,6 +225,7 @@
1.4 // _is_marked_dependent can be set concurrently, thus cannot be part of the
1.5 // _misc_flags.
1.6 bool _is_marked_dependent; // used for marking during flushing and deoptimization
1.7 + bool _is_being_redefined; // used for locking redefinition
1.8 bool _has_unloaded_dependent;
1.9
1.10 enum {
1.11 @@ -667,6 +668,10 @@
1.12 _nonstatic_oop_map_size = words;
1.13 }
1.14
1.15 + // Redefinition locking. Class can only be redefined by one thread at a time.
1.16 + bool is_being_redefined() const { return _is_being_redefined; }
1.17 + void set_is_being_redefined(bool value) { _is_being_redefined = value; }
1.18 +
1.19 // RedefineClasses() support for previous versions:
1.20 void add_previous_version(instanceKlassHandle ikh, int emcp_method_count);
1.21
