1 /* 2 * Copyright (C) 2020 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 #pragma once 17 18 #include <android/system/suspend/internal/WakeupInfo.h> 19 20 #include <utils/Mutex.h> 21 22 #include <list> 23 #include <unordered_map> 24 25 using ::android::system::suspend::internal::WakeupInfo; 26 27 namespace android { 28 namespace system { 29 namespace suspend { 30 namespace V1_0 { 31 32 /* 33 * WakeupList to collect wakeup stats. 34 * This class is thread safe. 35 */ 36 class WakeupList { 37 public: 38 WakeupList(size_t capacity); 39 void getWakeupStats(std::vector<WakeupInfo>* wakeups) const; 40 void update(const std::vector<std::string>& wakeupReasons); 41 42 private: 43 void evict() REQUIRES(mLock); 44 void insert(WakeupInfo entry) REQUIRES(mLock); 45 void erase(std::list<WakeupInfo>::iterator entry) REQUIRES(mLock); 46 47 size_t mCapacity; 48 mutable std::mutex mLock; 49 std::list<WakeupInfo> mWakeups GUARDED_BY(mLock); 50 std::unordered_map<std::string, std::list<WakeupInfo>::iterator> mLookupTable GUARDED_BY(mLock); 51 }; 52 53 } // namespace V1_0 54 } // namespace suspend 55 } // namespace system 56 } // namespace android