xref: /aosp_15_r20/art/runtime/object_lock.cc (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
1*795d594fSAndroid Build Coastguard Worker /*
2*795d594fSAndroid Build Coastguard Worker  * Copyright (C) 2011 The Android Open Source Project
3*795d594fSAndroid Build Coastguard Worker  *
4*795d594fSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*795d594fSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*795d594fSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*795d594fSAndroid Build Coastguard Worker  *
8*795d594fSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*795d594fSAndroid Build Coastguard Worker  *
10*795d594fSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*795d594fSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*795d594fSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*795d594fSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*795d594fSAndroid Build Coastguard Worker  * limitations under the License.
15*795d594fSAndroid Build Coastguard Worker  */
16*795d594fSAndroid Build Coastguard Worker 
17*795d594fSAndroid Build Coastguard Worker #include "object_lock.h"
18*795d594fSAndroid Build Coastguard Worker 
19*795d594fSAndroid Build Coastguard Worker #include "mirror/class_ext.h"
20*795d594fSAndroid Build Coastguard Worker #include "mirror/object-inl.h"
21*795d594fSAndroid Build Coastguard Worker #include "monitor.h"
22*795d594fSAndroid Build Coastguard Worker 
23*795d594fSAndroid Build Coastguard Worker namespace art HIDDEN {
24*795d594fSAndroid Build Coastguard Worker 
25*795d594fSAndroid Build Coastguard Worker template <typename T>
ObjectLock(Thread * self,Handle<T> object)26*795d594fSAndroid Build Coastguard Worker ObjectLock<T>::ObjectLock(Thread* self, Handle<T> object) : self_(self), obj_(object) {
27*795d594fSAndroid Build Coastguard Worker   CHECK(object != nullptr);
28*795d594fSAndroid Build Coastguard Worker   obj_->MonitorEnter(self_);
29*795d594fSAndroid Build Coastguard Worker }
30*795d594fSAndroid Build Coastguard Worker 
31*795d594fSAndroid Build Coastguard Worker template <typename T>
~ObjectLock()32*795d594fSAndroid Build Coastguard Worker ObjectLock<T>::~ObjectLock() {
33*795d594fSAndroid Build Coastguard Worker   obj_->MonitorExit(self_);
34*795d594fSAndroid Build Coastguard Worker }
35*795d594fSAndroid Build Coastguard Worker 
36*795d594fSAndroid Build Coastguard Worker template <typename T>
WaitIgnoringInterrupts()37*795d594fSAndroid Build Coastguard Worker void ObjectLock<T>::WaitIgnoringInterrupts() {
38*795d594fSAndroid Build Coastguard Worker   Monitor::Wait(self_, obj_.Get(), 0, 0, false, ThreadState::kWaiting);
39*795d594fSAndroid Build Coastguard Worker }
40*795d594fSAndroid Build Coastguard Worker 
41*795d594fSAndroid Build Coastguard Worker template <typename T>
Notify()42*795d594fSAndroid Build Coastguard Worker void ObjectLock<T>::Notify() {
43*795d594fSAndroid Build Coastguard Worker   obj_->Notify(self_);
44*795d594fSAndroid Build Coastguard Worker }
45*795d594fSAndroid Build Coastguard Worker 
46*795d594fSAndroid Build Coastguard Worker template <typename T>
NotifyAll()47*795d594fSAndroid Build Coastguard Worker void ObjectLock<T>::NotifyAll() {
48*795d594fSAndroid Build Coastguard Worker   obj_->NotifyAll(self_);
49*795d594fSAndroid Build Coastguard Worker }
50*795d594fSAndroid Build Coastguard Worker 
51*795d594fSAndroid Build Coastguard Worker template <typename T>
ObjectTryLock(Thread * self,Handle<T> object)52*795d594fSAndroid Build Coastguard Worker ObjectTryLock<T>::ObjectTryLock(Thread* self, Handle<T> object) : self_(self), obj_(object) {
53*795d594fSAndroid Build Coastguard Worker   CHECK(object != nullptr);
54*795d594fSAndroid Build Coastguard Worker   acquired_ = obj_->MonitorTryEnter(self_) != nullptr;
55*795d594fSAndroid Build Coastguard Worker }
56*795d594fSAndroid Build Coastguard Worker 
57*795d594fSAndroid Build Coastguard Worker template <typename T>
~ObjectTryLock()58*795d594fSAndroid Build Coastguard Worker ObjectTryLock<T>::~ObjectTryLock() {
59*795d594fSAndroid Build Coastguard Worker   if (acquired_) {
60*795d594fSAndroid Build Coastguard Worker     obj_->MonitorExit(self_);
61*795d594fSAndroid Build Coastguard Worker   }
62*795d594fSAndroid Build Coastguard Worker }
63*795d594fSAndroid Build Coastguard Worker 
64*795d594fSAndroid Build Coastguard Worker template class ObjectLock<mirror::Class>;
65*795d594fSAndroid Build Coastguard Worker template class ObjectLock<mirror::ClassExt>;
66*795d594fSAndroid Build Coastguard Worker template class ObjectLock<mirror::Object>;
67*795d594fSAndroid Build Coastguard Worker template class ObjectTryLock<mirror::Class>;
68*795d594fSAndroid Build Coastguard Worker template class ObjectTryLock<mirror::Object>;
69*795d594fSAndroid Build Coastguard Worker 
70*795d594fSAndroid Build Coastguard Worker }  // namespace art
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