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 template <class UnaryPredicate> RemoveActionIf(UnaryPredicate predicate)41 void RemoveActionIf(UnaryPredicate predicate) { 42 actions_.erase(std::remove_if(actions_.begin(), actions_.end(), predicate), actions_.end()); 43 } 44 void QueueEventTrigger(const std::string& trigger); 45 void QueuePropertyChange(const std::string& name, const std::string& value); 46 void QueueAllPropertyActions(); 47 void QueueBuiltinAction(BuiltinFunction func, const std::string& name); 48 void ExecuteOneCommand(); 49 bool HasMoreCommands() const; 50 void DumpState() const; 51 void ClearQueue(); size()52 auto size() const { return actions_.size(); } 53 54 private: 55 ActionManager(ActionManager const&) = delete; 56 void operator=(ActionManager const&) = delete; 57 58 std::vector<std::unique_ptr<Action>> actions_; 59 std::queue<std::variant<EventTrigger, PropertyChange, BuiltinAction>> event_queue_ 60 GUARDED_BY(event_queue_lock_); 61 mutable std::mutex event_queue_lock_; 62 std::queue<const Action*> current_executing_actions_; 63 std::size_t current_command_; 64 }; 65 66 } // namespace init 67 } // namespace android 68