Mercurial > hg > graal-compiler

comparison src/share/vm/classfile/classLoaderData.hpp @ 10405:f2110083203d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
parents 9d75bcd7c890
children e64f1fe9756b
comparison
equal deleted inserted replaced
10404:d0add7016434 10405:f2110083203d
29 #include "memory/memRegion.hpp" 29 #include "memory/memRegion.hpp"
30 #include "memory/metaspace.hpp" 30 #include "memory/metaspace.hpp"
31 #include "memory/metaspaceCounters.hpp" 31 #include "memory/metaspaceCounters.hpp"
32 #include "runtime/mutex.hpp" 32 #include "runtime/mutex.hpp"
33 #include "utilities/growableArray.hpp" 33 #include "utilities/growableArray.hpp"
34
35 #if INCLUDE_TRACE
36 # include "trace/traceTime.hpp"
37 #endif
34 38
35 // 39 //
36 // A class loader represents a linkset. Conceptually, a linkset identifies 40 // A class loader represents a linkset. Conceptually, a linkset identifies
37 // the complete transitive closure of resolved links that a dynamic linker can 41 // the complete transitive closure of resolved links that a dynamic linker can
38 // produce. 42 // produce.
47 51
48 class ClassLoaderData; 52 class ClassLoaderData;
49 class JNIMethodBlock; 53 class JNIMethodBlock;
50 class JNIHandleBlock; 54 class JNIHandleBlock;
51 class Metadebug; 55 class Metadebug;
56
52 // GC root for walking class loader data created 57 // GC root for walking class loader data created
53 58
54 class ClassLoaderDataGraph : public AllStatic { 59 class ClassLoaderDataGraph : public AllStatic {
55 friend class ClassLoaderData; 60 friend class ClassLoaderData;
56 friend class ClassLoaderDataGraphMetaspaceIterator; 61 friend class ClassLoaderDataGraphMetaspaceIterator;
61 static ClassLoaderData* _unloading; 66 static ClassLoaderData* _unloading;
62 // CMS support. 67 // CMS support.
63 static ClassLoaderData* _saved_head; 68 static ClassLoaderData* _saved_head;
64 69
65 static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS); 70 static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS);
71 static void post_class_unload_events(void);
66 public: 72 public:
67 static ClassLoaderData* find_or_create(Handle class_loader, TRAPS); 73 static ClassLoaderData* find_or_create(Handle class_loader, TRAPS);
68 static void purge(); 74 static void purge();
69 static void clear_claimed_marks(); 75 static void clear_claimed_marks();
70 static void oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim); 76 static void oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim);
71 static void always_strong_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim); 77 static void always_strong_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
72 static void keep_alive_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim); 78 static void keep_alive_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
73 static void classes_do(KlassClosure* klass_closure); 79 static void classes_do(KlassClosure* klass_closure);
80 static void classes_do(void f(Klass* const));
81 static void classes_unloading_do(void f(Klass* const));
74 static bool do_unloading(BoolObjectClosure* is_alive); 82 static bool do_unloading(BoolObjectClosure* is_alive);
75 83
76 // CMS support. 84 // CMS support.
77 static void remember_new_clds(bool remember) { _saved_head = (remember ? _head : NULL); } 85 static void remember_new_clds(bool remember) { _saved_head = (remember ? _head : NULL); }
78 static GrowableArray<ClassLoaderData*>* new_clds(); 86 static GrowableArray<ClassLoaderData*>* new_clds();
83 91
84 #ifndef PRODUCT 92 #ifndef PRODUCT
85 // expensive test for pointer in metaspace for debugging 93 // expensive test for pointer in metaspace for debugging
86 static bool contains(address x); 94 static bool contains(address x);
87 static bool contains_loader_data(ClassLoaderData* loader_data); 95 static bool contains_loader_data(ClassLoaderData* loader_data);
96 #endif
97
98 #if INCLUDE_TRACE
99 private:
100 static TracingTime _class_unload_time;
101 static void class_unload_event(Klass* const k);
88 #endif 102 #endif
89 }; 103 };
90 104
91 // ClassLoaderData class 105 // ClassLoaderData class
92 106
169 bool claim(); 183 bool claim();
170 184
171 void unload(); 185 void unload();
172 bool keep_alive() const { return _keep_alive; } 186 bool keep_alive() const { return _keep_alive; }
173 bool is_alive(BoolObjectClosure* is_alive_closure) const; 187 bool is_alive(BoolObjectClosure* is_alive_closure) const;
174 188 void classes_do(void f(Klass*));
175 void classes_do(void f(InstanceKlass*)); 189 void classes_do(void f(InstanceKlass*));
176 190
177 // Deallocate free list during class unloading. 191 // Deallocate free list during class unloading.
178 void free_deallocate_list(); 192 void free_deallocate_list();
179 193