jdk8-mips64-public/hotspot: src/share/vm/oops/instanceClassLoaderKlass.cpp@4c1b88a53c74 (annotated)

src/share/vm/oops/instanceClassLoaderKlass.cpp@4c1b88a53c74 (annotated)

src/share/vm/oops/instanceClassLoaderKlass.cpp

Tue, 24 Jun 2014 16:20:15 +0200

author: stefank
date: Tue, 24 Jun 2014 16:20:15 +0200
changeset 6982: 4c1b88a53c74
parent 6198: 55fb97c4c58d
child 7535: 7ae4e26cb1e0
permissions: -rw-r--r--

8046670: Make CMS metadata aware closures applicable for other collectors
Reviewed-by: ehelin, mgerdin

 /*
  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "classfile/javaClasses.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "gc_implementation/shared/markSweep.inline.hpp"
 #include "gc_interface/collectedHeap.inline.hpp"
 #include "memory/genOopClosures.inline.hpp"
 #include "memory/iterator.inline.hpp"
 #include "memory/oopFactory.hpp"
 #include "oops/instanceKlass.hpp"
 #include "oops/instanceClassLoaderKlass.hpp"
 #include "oops/instanceMirrorKlass.hpp"
 #include "oops/instanceOop.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/symbol.hpp"
 #include "runtime/handles.inline.hpp"
 #include "utilities/macros.hpp"
 #if INCLUDE_ALL_GCS
 #include "gc_implementation/parNew/parOopClosures.inline.hpp"
 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
 #include "oops/oop.pcgc.inline.hpp"
 #endif // INCLUDE_ALL_GCS
 // Macro to define InstanceClassLoaderKlass::oop_oop_iterate for virtual/nonvirtual for
 // all closures.  Macros calling macros above for each oop size.
 // Since ClassLoader objects have only a pointer to the loader_data, they are not
 // compressed nor does the pointer move.
 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)\
                                                                                 \
 int InstanceClassLoaderKlass::                                                  \
 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) {                  \
   /* Get size before changing pointers */                                       \
   SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
   int size = InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure);           \
                                                                                 \
   if_do_metadata_checked(closure, nv_suffix) {                                  \
     ClassLoaderData* cld = java_lang_ClassLoader::loader_data(obj);             \
     /* cld can be null if we have a non-registered class loader. */             \
     if (cld != NULL) {                                                          \
       closure->do_class_loader_data(cld);                                       \
     }                                                                           \
   }                                                                             \
                                                                                 \
   return size;                                                                  \
 }
 #if INCLUDE_ALL_GCS
 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
                                                                                 \
 int InstanceClassLoaderKlass::                                                  \
 oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) {        \
   /* Get size before changing pointers */                                       \
   SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
   int size = InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \
   return size;                                                                  \
 }
 #endif // INCLUDE_ALL_GCS
 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix)      \
                                                                                 \
 int InstanceClassLoaderKlass::                                                  \
 oop_oop_iterate##nv_suffix##_m(oop obj,                                         \
                                OopClosureType* closure,                         \
                                MemRegion mr) {                                  \
   SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
                                                                                 \
   int size = InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr);   \
                                                                                 \
   if_do_metadata_checked(closure, nv_suffix) {                                  \
     if (mr.contains(obj)) {                                                     \
       ClassLoaderData* cld = java_lang_ClassLoader::loader_data(obj);           \
       /* cld can be null if we have a non-registered class loader. */           \
       if (cld != NULL) {                                                        \
         closure->do_class_loader_data(cld);                                     \
       }                                                                         \
     }                                                                           \
   }                                                                             \
                                                                                 \
   return size;                                                                  \
 }
 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN)
 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN)
 #if INCLUDE_ALL_GCS
 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
 #endif // INCLUDE_ALL_GCS
 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN_m)
 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN_m)
 void InstanceClassLoaderKlass::oop_follow_contents(oop obj) {
   InstanceKlass::oop_follow_contents(obj);
   ClassLoaderData * const loader_data = java_lang_ClassLoader::loader_data(obj);
   // We must NULL check here, since the class loader
   // can be found before the loader data has been set up.
   if(loader_data != NULL) {
     MarkSweep::follow_class_loader(loader_data);
   }
 }
 #if INCLUDE_ALL_GCS
 void InstanceClassLoaderKlass::oop_follow_contents(ParCompactionManager* cm,
         oop obj) {
   InstanceKlass::oop_follow_contents(cm, obj);
   ClassLoaderData * const loader_data = java_lang_ClassLoader::loader_data(obj);
   if (loader_data != NULL) {
     PSParallelCompact::follow_class_loader(cm, loader_data);
   }
 }
 void InstanceClassLoaderKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
   InstanceKlass::oop_push_contents(pm, obj);
   // This is called by the young collector. It will already have taken care of
   // all class loader data. So, we don't have to follow the class loader ->
   // class loader data link.
 }
 int InstanceClassLoaderKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
   InstanceKlass::oop_update_pointers(cm, obj);
   return size_helper();
 }
 #endif // INCLUDE_ALL_GCS

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/oops/instanceClassLoaderKlass.cpp@4c1b88a53c74 (annotated)

src/share/vm/oops/instanceClassLoaderKlass.cpp