archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-26 22:34:27 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8236035: refactor ObjectMonitor::set_owner() and _owner field setting

Browse source 
Reviewed-by: dholmes, kbarrett, rehn
This commit is contained in:
Daniel D. Daugherty 2020-02-05 11:39:52 -05:00
parent b9e3a4efef
commit 8ff24c55ef
5 changed files with 95 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/hotspot/share/runtime/objectMonitor.hpp
View file

@ -238,7 +238,16 @@ class ObjectMonitor {
intptr_t is_entered(Thread* current) const;
void* owner() const;
void set_owner(void* owner);
// Clear _owner field; current value must match old_value.
void release_clear_owner(void* old_value);
// Simply set _owner field to new_value; current value must match old_value.
void set_owner_from(void* old_value, void* new_value);
// Simply set _owner field to self; current value must match basic_lock_p.
void set_owner_from_BasicLock(void* basic_lock_p, Thread* self);
// Try to set _owner field to new_value if the current value matches
// old_value, using Atomic::cmpxchg(). Otherwise, does not change the
// _owner field. Returns the prior value of the _owner field.
void* try_set_owner_from(void* old_value, void* new_value);
jint waiters() const;