1 /*

     2 /*

     3  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    25 

    26 #ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_INLINE_HPP

    27 #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_INLINE_HPP

    28 

    29 #include "classfile/javaClasses.hpp"

    30 #include "oops/instanceClassLoaderKlass.hpp"

    31 #include "oops/instanceKlass.inline.hpp"

    32 #include "oops/oop.inline.hpp"

    33 #include "utilities/debug.hpp"

    34 #include "utilities/globalDefinitions.hpp"

    35 #include "utilities/macros.hpp"

    36 

    37 template <bool nv, class OopClosureType>

    38 inline int InstanceClassLoaderKlass::oop_oop_iterate(oop obj, OopClosureType* closure) {

    39   int size = InstanceKlass::oop_oop_iterate<nv>(obj, closure);

    40 

    41   if (Devirtualizer<nv>::do_metadata(closure)) {

    42     ClassLoaderData* cld = java_lang_ClassLoader::loader_data(obj);

    43     // cld can be null if we have a non-registered class loader.

    44     if (cld != NULL) {

    45       closure->do_class_loader_data(cld);

    46     }

    47   }

    48 

    49   return size;

    50 }

    51 

    52 #if INCLUDE_ALL_GCS

    53 template <bool nv, class OopClosureType>

    54 inline int InstanceClassLoaderKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) {

    55   int size = InstanceKlass::oop_oop_iterate_reverse<nv>(obj, closure);

    56 

    57   assert(!Devirtualizer<nv>::do_metadata(closure),

    58       "Code to handle metadata is not implemented");

    59 

    60   return size;

    61 }

    62 #endif // INCLUDE_ALL_GCS

    63 

    64 

    65 template <bool nv, class OopClosureType>

    66 inline int InstanceClassLoaderKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {

    67   int size = InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr);

    68 

    69   if (Devirtualizer<nv>::do_metadata(closure)) {

    70     if (mr.contains(obj)) {

    71       ClassLoaderData* cld = java_lang_ClassLoader::loader_data(obj);

    72       // cld can be null if we have a non-registered class loader.

    73       if (cld != NULL) {

    74         closure->do_class_loader_data(cld);

    75       }

    76     }

    77   }

    78 

    79   return size;

    80 }

    81 

    82 

    83 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)              \

    84                                                                                               \

    85 int InstanceClassLoaderKlass::oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) {  \

    86   return oop_oop_iterate<nvs_to_bool(nv_suffix)>(obj, closure);                               \

    87 }

    88 

    89 #if INCLUDE_ALL_GCS

    90 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix)              \

    91                                                                                                         \

    92 int InstanceClassLoaderKlass::oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) {  \

    93   return oop_oop_iterate_reverse<nvs_to_bool(nv_suffix)>(obj, closure);                                 \

    94 }

    95 #else

    96 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix)

    97 #endif

    98 

    99 

   100 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix)                              \

   101                                                                                                                 \

   102 int InstanceClassLoaderKlass::oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* closure, MemRegion mr) {  \

   103   return oop_oop_iterate_bounded<nvs_to_bool(nv_suffix)>(obj, closure, mr);                                     \

   104 }

   105 

   106 #define ALL_INSTANCE_CLASS_LOADER_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)  \

   107   InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN(          OopClosureType, nv_suffix)     \

   108   InstanceClassLoaderKlass_OOP_OOP_ITERATE_DEFN_m(        OopClosureType, nv_suffix)     \

   109   InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix)

   110 

   111 #endif // SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_INLINE_HPP