1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "entrypoints/entrypoint_utils-inl.h"
18 #include "mirror/object-inl.h"
19 
20 namespace art {
21 
art_portable_lock_object_from_code(mirror::Object * obj,Thread * thread)22 extern "C" void art_portable_lock_object_from_code(mirror::Object* obj, Thread* thread)
23     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
24     NO_THREAD_SAFETY_ANALYSIS /* EXCLUSIVE_LOCK_FUNCTION(Monitor::monitor_lock_) */ {
25   DCHECK(obj != nullptr);        // Assumed to have been checked before entry.
26   obj->MonitorEnter(thread);  // May block.
27   DCHECK(thread->HoldsLock(obj));
28   // Only possible exception is NPE and is handled before entry.
29   DCHECK(!thread->IsExceptionPending());
30 }
31 
art_portable_unlock_object_from_code(mirror::Object * obj,Thread * thread)32 extern "C" void art_portable_unlock_object_from_code(mirror::Object* obj, Thread* thread)
33     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
34     NO_THREAD_SAFETY_ANALYSIS /* UNLOCK_FUNCTION(Monitor::monitor_lock_) */ {
35   DCHECK(obj != nullptr);  // Assumed to have been checked before entry.
36   // MonitorExit may throw exception.
37   obj->MonitorExit(thread);
38 }
39 
40 }  // namespace art
41