Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/classfile/classLoaderData.cpp
src/share/vm/classfile/classLoaderData.cpp
- changeset 9866
- 41515291559a
- parent 9858
- b985cbb00e68
- child 9931
- fd44df5e3bc3
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| 9865:5a83b7215107 | 9866:41515291559a |
|---|---|
| 62 #include "runtime/safepoint.hpp" | 62 #include "runtime/safepoint.hpp" |
| 63 #include "runtime/synchronizer.hpp" | 63 #include "runtime/synchronizer.hpp" |
| 64 #include "utilities/growableArray.hpp" | 64 #include "utilities/growableArray.hpp" |
| 65 #include "utilities/macros.hpp" | 65 #include "utilities/macros.hpp" |
| 66 #include "utilities/ostream.hpp" | 66 #include "utilities/ostream.hpp" |
| 67 #include "utilities/ticks.hpp" | |
| 68 #if INCLUDE_JFR | |
| 69 #include "jfr/jfr.hpp" | |
| 70 #include "jfr/jfrEvents.hpp" | |
| 71 #endif | |
| 72 | 67 |
| 73 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL; | 68 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL; |
| 74 | 69 |
| 75 ClassLoaderData::ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies) : | 70 ClassLoaderData::ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies) : |
| 76 _class_loader(h_class_loader()), | 71 _class_loader(h_class_loader()), |
| 751 | 746 |
| 752 return false; | 747 return false; |
| 753 } | 748 } |
| 754 #endif // PRODUCT | 749 #endif // PRODUCT |
| 755 | 750 |
| 756 #if INCLUDE_JFR | |
| 757 static Ticks class_unload_time; | |
| 758 static void post_class_unload_event(Klass* const k) { | |
| 759 assert(k != NULL, "invariant"); | |
| 760 EventClassUnload event(UNTIMED); | |
| 761 event.set_endtime(class_unload_time); | |
| 762 event.set_unloadedClass(k); | |
| 763 event.set_definingClassLoader(k->class_loader_data()); | |
| 764 event.commit(); | |
| 765 } | |
| 766 | |
| 767 static void post_class_unload_events() { | |
| 768 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!"); | |
| 769 if (Jfr::is_enabled()) { | |
| 770 if (EventClassUnload::is_enabled()) { | |
| 771 class_unload_time = Ticks::now(); | |
| 772 ClassLoaderDataGraph::classes_unloading_do(&post_class_unload_event); | |
| 773 } | |
| 774 Jfr::on_unloading_classes(); | |
| 775 } | |
| 776 } | |
| 777 #endif // INCLUDE_JFR | |
| 778 | |
| 779 // Move class loader data from main list to the unloaded list for unloading | 751 // Move class loader data from main list to the unloaded list for unloading |
| 780 // and deallocation later. | 752 // and deallocation later. |
| 781 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure, bool clean_alive) { | 753 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure, bool clean_alive) { |
| 782 ClassLoaderData* data = _head; | 754 ClassLoaderData* data = _head; |
| 783 ClassLoaderData* prev = NULL; | 755 ClassLoaderData* prev = NULL; |
| 813 if (clean_alive) { | 785 if (clean_alive) { |
| 814 // Clean previous versions and the deallocate list. | 786 // Clean previous versions and the deallocate list. |
| 815 ClassLoaderDataGraph::clean_metaspaces(); | 787 ClassLoaderDataGraph::clean_metaspaces(); |
| 816 } | 788 } |
| 817 | 789 |
| 818 if (seen_dead_loader) { | |
| 819 JFR_ONLY(post_class_unload_events();) | |
| 820 } | |
| 821 | |
| 822 return seen_dead_loader; | 790 return seen_dead_loader; |
| 823 } | 791 } |
| 824 | 792 |
| 825 void ClassLoaderDataGraph::clean_metaspaces() { | 793 void ClassLoaderDataGraph::clean_metaspaces() { |
| 826 // mark metadata seen on the stack and code cache so we can delete unneeded entries. | 794 // mark metadata seen on the stack and code cache so we can delete unneeded entries. |
