1 /*
2  * Copyright (C) 2018 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 "interpreter_cache.h"
18 #include "thread-inl.h"
19 
20 namespace art HIDDEN {
21 
Clear(Thread * owning_thread)22 void InterpreterCache::Clear(Thread* owning_thread) {
23   DCHECK(owning_thread->GetInterpreterCache() == this);
24   DCHECK(owning_thread == Thread::Current() || owning_thread->IsSuspended());
25   // Avoid using std::fill (or its variant) as there could be a concurrent sweep
26   // happening by the GC thread and these functions may clear partially.
27   for (Entry& entry : data_) {
28     std::atomic<const void*>* atomic_key_addr =
29         reinterpret_cast<std::atomic<const void*>*>(&entry.first);
30     atomic_key_addr->store(nullptr, std::memory_order_relaxed);
31   }
32 }
33 
34 }  // namespace art
35