1 /*
2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
164 class_size += k->size();
165
166 if (k->oop_is_instance()) {
167 class_size += k->methods()->size();
168 // FIXME: Need to count the contents of methods
169 class_size += k->constants()->size();
170 class_size += k->local_interfaces()->size();
171 class_size += k->transitive_interfaces()->size();
172 // We do not have to count implementors, since we only store one!
173 // FIXME: How should these be accounted for, now when they have moved.
174 //class_size += k->fields()->size();
175 }
176 return class_size * oopSize;
177 }
178
179
180 bool ClassLoadingService::set_verbose(bool verbose) {
181 MutexLocker m(Management_lock);
182
183 // verbose will be set to the previous value
184 bool succeed = CommandLineFlags::boolAtPut((char*)"TraceClassLoading", &verbose, Flag::MANAGEMENT);
185 assert(succeed, "Setting TraceClassLoading flag fails");
186 reset_trace_class_unloading();
187
188 return verbose;
189 }
190
191 // Caller to this function must own Management_lock
192 void ClassLoadingService::reset_trace_class_unloading() {
193 assert(Management_lock->owned_by_self(), "Must own the Management_lock");
194 bool value = MemoryService::get_verbose() || ClassLoadingService::get_verbose();
195 bool succeed = CommandLineFlags::boolAtPut((char*)"TraceClassUnloading", &value, Flag::MANAGEMENT);
196 assert(succeed, "Setting TraceClassUnLoading flag fails");
197 }
198
199 GrowableArray<KlassHandle>* LoadedClassesEnumerator::_loaded_classes = NULL;
200 Thread* LoadedClassesEnumerator::_current_thread = NULL;
201
202 LoadedClassesEnumerator::LoadedClassesEnumerator(Thread* cur_thread) {
203 assert(cur_thread == Thread::current(), "Check current thread");
204
205 int init_size = ClassLoadingService::loaded_class_count();
206 _klass_handle_array = new GrowableArray<KlassHandle>(init_size);
207
208 // For consistency of the loaded classes, grab the SystemDictionary lock
209 MutexLocker sd_mutex(SystemDictionary_lock);
210
211 // Set _loaded_classes and _current_thread and begin enumerating all classes.
212 // Only one thread will do the enumeration at a time.
213 // These static variables are needed and they are used by the static method
214 // add_loaded_class called from classes_do().
215 _loaded_classes = _klass_handle_array;
|
1 /*
2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
164 class_size += k->size();
165
166 if (k->oop_is_instance()) {
167 class_size += k->methods()->size();
168 // FIXME: Need to count the contents of methods
169 class_size += k->constants()->size();
170 class_size += k->local_interfaces()->size();
171 class_size += k->transitive_interfaces()->size();
172 // We do not have to count implementors, since we only store one!
173 // FIXME: How should these be accounted for, now when they have moved.
174 //class_size += k->fields()->size();
175 }
176 return class_size * oopSize;
177 }
178
179
180 bool ClassLoadingService::set_verbose(bool verbose) {
181 MutexLocker m(Management_lock);
182
183 // verbose will be set to the previous value
184 bool succeed = (CommandLineFlags::boolAtPut((char*)"TraceClassLoading", &verbose, Flag::MANAGEMENT) == Flag::SUCCESS);
185 assert(succeed, "Setting TraceClassLoading flag fails");
186 reset_trace_class_unloading();
187
188 return verbose;
189 }
190
191 // Caller to this function must own Management_lock
192 void ClassLoadingService::reset_trace_class_unloading() {
193 assert(Management_lock->owned_by_self(), "Must own the Management_lock");
194 bool value = MemoryService::get_verbose() || ClassLoadingService::get_verbose();
195 bool succeed = (CommandLineFlags::boolAtPut((char*)"TraceClassUnloading", &value, Flag::MANAGEMENT) == Flag::SUCCESS);
196 assert(succeed, "Setting TraceClassUnLoading flag fails");
197 }
198
199 GrowableArray<KlassHandle>* LoadedClassesEnumerator::_loaded_classes = NULL;
200 Thread* LoadedClassesEnumerator::_current_thread = NULL;
201
202 LoadedClassesEnumerator::LoadedClassesEnumerator(Thread* cur_thread) {
203 assert(cur_thread == Thread::current(), "Check current thread");
204
205 int init_size = ClassLoadingService::loaded_class_count();
206 _klass_handle_array = new GrowableArray<KlassHandle>(init_size);
207
208 // For consistency of the loaded classes, grab the SystemDictionary lock
209 MutexLocker sd_mutex(SystemDictionary_lock);
210
211 // Set _loaded_classes and _current_thread and begin enumerating all classes.
212 // Only one thread will do the enumeration at a time.
213 // These static variables are needed and they are used by the static method
214 // add_loaded_class called from classes_do().
215 _loaded_classes = _klass_handle_array;
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