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)22void InterpreterCache::Clear(Thread* owning_thread) { 23 DCHECK(owning_thread->GetInterpreterCache() == this); 24 DCHECK(owning_thread == Thread::Current() || owning_thread->IsSuspended() || 25 owning_thread->ReadFlag(ThreadFlag::kRunningFlipFunction, std::memory_order_relaxed)); 26 // Avoid using std::fill (or its variant) as there could be a concurrent sweep 27 // happening by the GC thread and these functions may clear partially. 28 for (Entry& entry : data_) { 29 std::atomic<const void*>* atomic_key_addr = 30 reinterpret_cast<std::atomic<const void*>*>(&entry.first); 31 atomic_key_addr->store(nullptr, std::memory_order_relaxed); 32 } 33 } 34 35 } // namespace art 36