1 /* 2 * Copyright (C) 2016 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 <atomic> 18 19 #include "EffectMap.h" 20 21 namespace android { 22 23 ANDROID_SINGLETON_STATIC_INSTANCE(EffectMap); 24 25 // static 26 const uint64_t EffectMap::INVALID_ID = 0; 27 28 // static 29 uint64_t EffectMap::makeUniqueId() { 30 static std::atomic<uint64_t> counter{INVALID_ID + 1}; 31 return counter++; 32 } 33 34 uint64_t EffectMap::add(effect_handle_t handle) { 35 uint64_t newId = makeUniqueId(); 36 std::lock_guard<std::mutex> lock(mLock); 37 mEffects.add(newId, handle); 38 return newId; 39 } 40 41 effect_handle_t EffectMap::get(const uint64_t& id) { 42 std::lock_guard<std::mutex> lock(mLock); 43 ssize_t idx = mEffects.indexOfKey(id); 44 return idx >= 0 ? mEffects[idx] : NULL; 45 } 46 47 void EffectMap::remove(effect_handle_t handle) { 48 std::lock_guard<std::mutex> lock(mLock); 49 for (size_t i = 0; i < mEffects.size(); ++i) { 50 if (mEffects[i] == handle) { 51 mEffects.removeItemsAt(i); 52 break; 53 } 54 } 55 } 56 57 } // namespace android 58
