/* Copyright (C) 2016 The Android Open Source Project
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
*
|
* This file implements interfaces from the file jvmti.h. This implementation
|
* is licensed under the same terms as the file jvmti.h. The
|
* copyright and license information for the file jvmti.h follows.
|
*
|
* Copyright (c) 2003, 2011, 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. Oracle designates this
|
* particular file as subject to the "Classpath" exception as provided
|
* by Oracle in the LICENSE file that accompanied this code.
|
*
|
* 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 "object_tagging.h"
|
|
#include <limits>
|
|
#include "art_jvmti.h"
|
#include "events-inl.h"
|
#include "jvmti_weak_table-inl.h"
|
#include "mirror/object-inl.h"
|
|
namespace openjdkjvmti {
|
|
// Instantiate for jlong = JVMTI tags.
|
template class JvmtiWeakTable<jlong>;
|
|
void ObjectTagTable::Allow() {
|
JvmtiWeakTable<jlong>::Allow();
|
SendDelayedFreeEvents();
|
}
|
|
void ObjectTagTable::Broadcast(bool broadcast_for_checkpoint) {
|
JvmtiWeakTable<jlong>::Broadcast(broadcast_for_checkpoint);
|
if (!broadcast_for_checkpoint) {
|
SendDelayedFreeEvents();
|
}
|
}
|
|
void ObjectTagTable::SendDelayedFreeEvents() {
|
std::vector<jlong> to_send;
|
{
|
art::MutexLock mu(art::Thread::Current(), lock_);
|
to_send.swap(null_tags_);
|
}
|
for (jlong t : to_send) {
|
SendSingleFreeEvent(t);
|
}
|
}
|
|
void ObjectTagTable::SendSingleFreeEvent(jlong tag) {
|
event_handler_->DispatchEventOnEnv<ArtJvmtiEvent::kObjectFree>(
|
jvmti_env_, art::Thread::Current(), tag);
|
}
|
|
bool ObjectTagTable::Set(art::ObjPtr<art::mirror::Object> obj, jlong new_tag) {
|
if (new_tag == 0) {
|
jlong tmp;
|
return Remove(obj, &tmp);
|
}
|
return JvmtiWeakTable<jlong>::Set(obj, new_tag);
|
}
|
|
bool ObjectTagTable::SetLocked(art::ObjPtr<art::mirror::Object> obj, jlong new_tag) {
|
if (new_tag == 0) {
|
jlong tmp;
|
return RemoveLocked(obj, &tmp);
|
}
|
return JvmtiWeakTable<jlong>::SetLocked(obj, new_tag);
|
}
|
|
bool ObjectTagTable::DoesHandleNullOnSweep() {
|
return event_handler_->IsEventEnabledAnywhere(ArtJvmtiEvent::kObjectFree);
|
}
|
|
void ObjectTagTable::HandleNullSweep(jlong tag) {
|
art::MutexLock mu(art::Thread::Current(), lock_);
|
null_tags_.push_back(tag);
|
}
|
|
} // namespace openjdkjvmti
|
