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 #include "defines.h" 17 #include "eventprovider.h" 18 #include <algorithm> 19 #include <utils/Log.h> 20 21 using namespace com::android::car::keventreader; 22 23 EventProviderImpl::EventProviderImpl(EventGatherer&& g) : mGatherer(std::move(g)) {} 24 25 std::thread EventProviderImpl::startLoop() { 26 auto t = std::thread( [this] () -> void { 27 while(true) { 28 auto events = mGatherer.read(); 29 { 30 std::scoped_lock lock(mMutex); 31 for (auto&& cb : mCallbacks) { 32 for (const auto& event : events) { 33 cb->onEvent(event); 34 } 35 } 36 } 37 } 38 }); 39 return t; 40 } 41 42 Status EventProviderImpl::registerCallback(const sp<IEventCallback>& cb) { 43 std::scoped_lock lock(mMutex); 44 mCallbacks.push_back(cb); 45 return Status::ok(); 46 } 47 48 Status EventProviderImpl::unregisterCallback(const sp<IEventCallback>& cb) { 49 std::scoped_lock lock(mMutex); 50 std::remove(mCallbacks.begin(), mCallbacks.end(), cb); 51 return Status::ok(); 52 } 53
