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

8049421: G1 Class Unloading after completing a concurrent mark cycle

Browse source 
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
This commit is contained in:
Stefan Karlsson 2014-07-07 10:12:40 +02:00
parent ef1e9b3c80
commit 1b001a2afd
75 changed files with 2169 additions and 874 deletions
Download patch file Download diff file Expand all files Collapse all files

37
hotspot/src/share/vm/classfile/dictionary.cpp
View file

@ -199,6 +199,26 @@ bool Dictionary::do_unloading() {
return class_was_unloaded;
}
void Dictionary::roots_oops_do(OopClosure* strong, OopClosure* weak) {
// Skip the strong roots probe marking if the closures are the same.
if (strong == weak) {
oops_do(strong);
return;
}
for (int index = 0; index < table_size(); index++) {
for (DictionaryEntry *probe = bucket(index);
probe != NULL;
probe = probe->next()) {
Klass* e = probe->klass();
ClassLoaderData* loader_data = probe->loader_data();
if (is_strongly_reachable(loader_data, e)) {
probe->set_strongly_reachable();
}
}
}
_pd_cache_table->roots_oops_do(strong, weak);
}
void Dictionary::always_strong_oops_do(OopClosure* blk) {
// Follow all system classes and temporary placeholders in dictionary; only
@ -490,6 +510,23 @@ void ProtectionDomainCacheTable::oops_do(OopClosure* f) {
}
}
void ProtectionDomainCacheTable::roots_oops_do(OopClosure* strong, OopClosure* weak) {
for (int index = 0; index < table_size(); index++) {
for (ProtectionDomainCacheEntry* probe = bucket(index);
probe != NULL;
probe = probe->next()) {
if (probe->is_strongly_reachable()) {
probe->reset_strongly_reachable();
probe->oops_do(strong);
} else {
if (weak != NULL) {
probe->oops_do(weak);
}
}
}
}
}
uint ProtectionDomainCacheTable::bucket_size() {
return sizeof(ProtectionDomainCacheEntry);
}