archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 15:24:43 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8286666: JEP 429: Implementation of Scoped Values (Incubator)

Browse source 
Reviewed-by: psandoz, dlong, alanb, mcimadamore
This commit is contained in:
Andrew Haley 2022-12-07 10:14:06 +00:00 • committed by Alan Bateman
parent ccc69af966
commit 221e1a4260
61 changed files with 2889 additions and 230 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/hotspot/share/runtime/javaThread.cpp
View file

@ -157,7 +157,7 @@ void JavaThread::set_threadOopHandles(oop p) {
_threadObj = OopHandle(_thread_oop_storage, p);
_vthread = OopHandle(_thread_oop_storage, p);
_jvmti_vthread = OopHandle(_thread_oop_storage, NULL);
_extentLocalCache = OopHandle(_thread_oop_storage, NULL);
_scopedValueCache = OopHandle(_thread_oop_storage, NULL);
}
oop JavaThread::threadObj() const {
@ -186,13 +186,26 @@ void JavaThread::set_jvmti_vthread(oop p) {
_jvmti_vthread.replace(p);
}
oop JavaThread::extentLocalCache() const {
return _extentLocalCache.resolve();
oop JavaThread::scopedValueCache() const {
return _scopedValueCache.resolve();
}
void JavaThread::set_extentLocalCache(oop p) {
assert(_thread_oop_storage != NULL, "not yet initialized");
_extentLocalCache.replace(p);
void JavaThread::set_scopedValueCache(oop p) {
if (_scopedValueCache.ptr_raw() != NULL) { // i.e. if the OopHandle has been allocated
_scopedValueCache.replace(p);
} else {
assert(p == NULL, "not yet initialized");
}
}
void JavaThread::clear_scopedValueBindings() {
set_scopedValueCache(NULL);
oop vthread_oop = vthread();
// vthread may be null here if we get a VM error during startup,
// before the java.lang.Thread instance has been created.
if (vthread_oop != NULL) {
java_lang_Thread::clear_scopedValueBindings(vthread_oop);
}
}
void JavaThread::allocate_threadObj(Handle thread_group, const char* thread_name,
@ -1040,11 +1053,7 @@ void JavaThread::handle_async_exception(oop java_throwable) {
// We cannot call Exceptions::_throw(...) here because we cannot block
set_pending_exception(java_throwable, __FILE__, __LINE__);
// Clear any extent-local bindings
set_extentLocalCache(NULL);
oop threadOop = threadObj();
assert(threadOop != NULL, "must be");
java_lang_Thread::clear_extentLocalBindings(threadOop);
clear_scopedValueBindings();
LogTarget(Info, exceptions) lt;
if (lt.is_enabled()) {
@ -2097,7 +2106,7 @@ void JavaThread::add_oop_handles_for_release() {
new_head->add(_threadObj);
new_head->add(_vthread);
new_head->add(_jvmti_vthread);
new_head->add(_extentLocalCache);
new_head->add(_scopedValueCache);
_oop_handle_list = new_head;
Service_lock->notify_all();
}