Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/classfile/classLoaderData.cpp
src/share/vm/classfile/classLoaderData.cpp
- changeset 6742
- e4a6e7f1b90b
- parent 6680
- 78bbf4d43a14
- child 6876
- 710a3c8b516e
- child 6974
- 556a06aec3fa
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| 6741:ae92351815b6 | 6742:e4a6e7f1b90b |
|---|---|
| 529 | 529 |
| 530 | 530 |
| 531 // GC root of class loader data created. | 531 // GC root of class loader data created. |
| 532 ClassLoaderData* ClassLoaderDataGraph::_head = NULL; | 532 ClassLoaderData* ClassLoaderDataGraph::_head = NULL; |
| 533 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL; | 533 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL; |
| 534 ClassLoaderData* ClassLoaderDataGraph::_saved_unloading = NULL; | |
| 534 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL; | 535 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL; |
| 535 | 536 |
| 536 bool ClassLoaderDataGraph::_should_purge = false; | 537 bool ClassLoaderDataGraph::_should_purge = false; |
| 537 | 538 |
| 538 // Add a new class loader data node to the list. Assign the newly created | 539 // Add a new class loader data node to the list. Assign the newly created |
| 626 } | 627 } |
| 627 } | 628 } |
| 628 | 629 |
| 629 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) { | 630 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) { |
| 630 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!"); | 631 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!"); |
| 631 for (ClassLoaderData* cld = _unloading; cld != NULL; cld = cld->next()) { | 632 // Only walk the head until any clds not purged from prior unloading |
| 633 // (CMS doesn't purge right away). | |
| 634 for (ClassLoaderData* cld = _unloading; cld != _saved_unloading; cld = cld->next()) { | |
| 632 cld->classes_do(f); | 635 cld->classes_do(f); |
| 633 } | 636 } |
| 634 } | 637 } |
| 635 | 638 |
| 636 GrowableArray<ClassLoaderData*>* ClassLoaderDataGraph::new_clds() { | 639 GrowableArray<ClassLoaderData*>* ClassLoaderDataGraph::new_clds() { |
| 674 // and deallocation later. | 677 // and deallocation later. |
| 675 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure) { | 678 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure) { |
| 676 ClassLoaderData* data = _head; | 679 ClassLoaderData* data = _head; |
| 677 ClassLoaderData* prev = NULL; | 680 ClassLoaderData* prev = NULL; |
| 678 bool seen_dead_loader = false; | 681 bool seen_dead_loader = false; |
| 682 | |
| 683 // Save previous _unloading pointer for CMS which may add to unloading list before | |
| 684 // purging and we don't want to rewalk the previously unloaded class loader data. | |
| 685 _saved_unloading = _unloading; | |
| 686 | |
| 679 // mark metadata seen on the stack and code cache so we can delete | 687 // mark metadata seen on the stack and code cache so we can delete |
| 680 // unneeded entries. | 688 // unneeded entries. |
| 681 bool has_redefined_a_class = JvmtiExport::has_redefined_a_class(); | 689 bool has_redefined_a_class = JvmtiExport::has_redefined_a_class(); |
| 682 MetadataOnStackMark md_on_stack; | 690 MetadataOnStackMark md_on_stack; |
| 683 while (data != NULL) { | 691 while (data != NULL) { |
