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 #pragma once 18 19 #include <mutex> 20 #include <string> 21 #include <vector> 22 23 #include <android-base/thread_annotations.h> 24 25 #include "action.h" 26 #include "builtins.h" 27 28 namespace android { 29 namespace init { 30 31 class ActionManager { 32 public: 33 static ActionManager& GetInstance(); 34 35 // Exposed for testing 36 ActionManager(); 37 size_t CheckAllCommands(); 38 39 void AddAction(std::unique_ptr<Action> action); 40 void QueueEventTrigger(const std::string& trigger); 41 void QueuePropertyChange(const std::string& name, const std::string& value); 42 void QueueAllPropertyActions(); 43 void QueueBuiltinAction(BuiltinFunction func, const std::string& name); 44 void ExecuteOneCommand(); 45 bool HasMoreCommands() const; 46 void DumpState() const; 47 void ClearQueue(); 48 49 private: 50 ActionManager(ActionManager const&) = delete; 51 void operator=(ActionManager const&) = delete; 52 53 std::vector<std::unique_ptr<Action>> actions_; 54 std::queue<std::variant<EventTrigger, PropertyChange, BuiltinAction>> event_queue_ 55 GUARDED_BY(event_queue_lock_); 56 mutable std::mutex event_queue_lock_; 57 std::queue<const Action*> current_executing_actions_; 58 std::size_t current_command_; 59 }; 60 61 } // namespace init 62 } // namespace android 63