1 /* 2 * Copyright (C) 2015 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 #ifndef _INIT_ACTION_H 18 #define _INIT_ACTION_H 19 20 #include <map> 21 #include <queue> 22 #include <string> 23 #include <variant> 24 #include <vector> 25 26 #include "builtins.h" 27 #include "keyword_map.h" 28 #include "result.h" 29 #include "subcontext.h" 30 31 namespace android { 32 namespace init { 33 34 Result<Success> RunBuiltinFunction(const BuiltinFunction& function, 35 const std::vector<std::string>& args, const std::string& context); 36 37 class Command { 38 public: 39 Command(BuiltinFunction f, bool execute_in_subcontext, std::vector<std::string>&& args, 40 int line); 41 42 Result<Success> InvokeFunc(Subcontext* subcontext) const; 43 std::string BuildCommandString() const; 44 line()45 int line() const { return line_; } 46 47 private: 48 BuiltinFunction func_; 49 bool execute_in_subcontext_; 50 std::vector<std::string> args_; 51 int line_; 52 }; 53 54 using EventTrigger = std::string; 55 using PropertyChange = std::pair<std::string, std::string>; 56 using BuiltinAction = class Action*; 57 58 class Action { 59 public: 60 Action(bool oneshot, Subcontext* subcontext, const std::string& filename, int line, 61 const std::string& event_trigger, 62 const std::map<std::string, std::string>& property_triggers); 63 64 Result<Success> AddCommand(std::vector<std::string>&& args, int line); 65 void AddCommand(BuiltinFunction f, std::vector<std::string>&& args, int line); 66 std::size_t NumCommands() const; 67 void ExecuteOneCommand(std::size_t command) const; 68 void ExecuteAllCommands() const; 69 bool CheckEvent(const EventTrigger& event_trigger) const; 70 bool CheckEvent(const PropertyChange& property_change) const; 71 bool CheckEvent(const BuiltinAction& builtin_action) const; 72 std::string BuildTriggersString() const; 73 void DumpState() const; 74 oneshot()75 bool oneshot() const { return oneshot_; } filename()76 const std::string& filename() const { return filename_; } line()77 int line() const { return line_; } set_function_map(const KeywordFunctionMap * function_map)78 static void set_function_map(const KeywordFunctionMap* function_map) { 79 function_map_ = function_map; 80 } 81 82 private: 83 void ExecuteCommand(const Command& command) const; 84 bool CheckPropertyTriggers(const std::string& name = "", 85 const std::string& value = "") const; 86 87 std::map<std::string, std::string> property_triggers_; 88 std::string event_trigger_; 89 std::vector<Command> commands_; 90 bool oneshot_; 91 Subcontext* subcontext_; 92 std::string filename_; 93 int line_; 94 static const KeywordFunctionMap* function_map_; 95 }; 96 97 } // namespace init 98 } // namespace android 99 100 #endif 101