1 /* Copyright (C) 2016 The Android Open Source Project
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This file implements interfaces from the file jvmti.h. This implementation
5 * is licensed under the same terms as the file jvmti.h. The
6 * copyright and license information for the file jvmti.h follows.
7 *
8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
10 *
11 * This code is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 only, as
13 * published by the Free Software Foundation. Oracle designates this
14 * particular file as subject to the "Classpath" exception as provided
15 * by Oracle in the LICENSE file that accompanied this code.
16 *
17 * This code is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * version 2 for more details (a copy is included in the LICENSE file that
21 * accompanied this code).
22 *
23 * You should have received a copy of the GNU General Public License version
24 * 2 along with this work; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
26 *
27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
28 * or visit www.oracle.com if you need additional information or have any
29 * questions.
30 */
31
32 #include "object_tagging.h"
33
34 #include <limits>
35
36 #include "art_jvmti.h"
37 #include "events-inl.h"
38 #include "jvmti_weak_table-inl.h"
39
40 namespace openjdkjvmti {
41
42 // Instantiate for jlong = JVMTI tags.
43 template class JvmtiWeakTable<jlong>;
44
Set(art::mirror::Object * obj,jlong new_tag)45 bool ObjectTagTable::Set(art::mirror::Object* obj, jlong new_tag) {
46 if (new_tag == 0) {
47 jlong tmp;
48 return Remove(obj, &tmp);
49 }
50 return JvmtiWeakTable<jlong>::Set(obj, new_tag);
51 }
SetLocked(art::mirror::Object * obj,jlong new_tag)52 bool ObjectTagTable::SetLocked(art::mirror::Object* obj, jlong new_tag) {
53 if (new_tag == 0) {
54 jlong tmp;
55 return RemoveLocked(obj, &tmp);
56 }
57 return JvmtiWeakTable<jlong>::SetLocked(obj, new_tag);
58 }
59
DoesHandleNullOnSweep()60 bool ObjectTagTable::DoesHandleNullOnSweep() {
61 return event_handler_->IsEventEnabledAnywhere(ArtJvmtiEvent::kObjectFree);
62 }
HandleNullSweep(jlong tag)63 void ObjectTagTable::HandleNullSweep(jlong tag) {
64 event_handler_->DispatchEventOnEnv<ArtJvmtiEvent::kObjectFree>(
65 jvmti_env_, art::Thread::Current(), tag);
66 }
67
68 } // namespace openjdkjvmti
69