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 #pragma once 18 19 #include <map> 20 #include <queue> 21 #include <string> 22 #include <variant> 23 #include <vector> 24 25 #include <android-base/strings.h> 26 27 #include "builtins.h" 28 #include "keyword_map.h" 29 #include "result.h" 30 #include "subcontext.h" 31 32 namespace android { 33 namespace init { 34 35 Result<void> RunBuiltinFunction(const BuiltinFunction& function, 36 const std::vector<std::string>& args, const std::string& context); 37 38 class Command { 39 public: 40 Command(BuiltinFunction f, bool execute_in_subcontext, std::vector<std::string>&& args, 41 int line); 42 43 Result<void> InvokeFunc(Subcontext* subcontext) const; 44 std::string BuildCommandString() const; 45 Result<void> CheckCommand() const; 46 line()47 int line() const { return line_; } 48 49 private: 50 BuiltinFunction func_; 51 bool execute_in_subcontext_; 52 std::vector<std::string> args_; 53 int line_; 54 }; 55 56 using EventTrigger = std::string; 57 using PropertyChange = std::pair<std::string, std::string>; 58 using BuiltinAction = class Action*; 59 60 class Action { 61 public: 62 Action(bool oneshot, Subcontext* subcontext, const std::string& filename, int line, 63 const std::string& event_trigger, 64 const std::map<std::string, std::string>& property_triggers); 65 66 Result<void> AddCommand(std::vector<std::string>&& args, int line); 67 void AddCommand(BuiltinFunction f, std::vector<std::string>&& args, int line); 68 size_t NumCommands() const; 69 void ExecuteOneCommand(std::size_t command) const; 70 void ExecuteAllCommands() const; 71 bool CheckEvent(const EventTrigger& event_trigger) const; 72 bool CheckEvent(const PropertyChange& property_change) const; 73 bool CheckEvent(const BuiltinAction& builtin_action) const; 74 std::string BuildTriggersString() const; 75 void DumpState() const; 76 size_t CheckAllCommands() const; 77 oneshot()78 bool oneshot() const { return oneshot_; } filename()79 const std::string& filename() const { return filename_; } line()80 int line() const { return line_; } set_function_map(const BuiltinFunctionMap * function_map)81 static void set_function_map(const BuiltinFunctionMap* function_map) { 82 function_map_ = function_map; 83 } IsFromApex()84 bool IsFromApex() const { return base::StartsWith(filename_, "/apex/"); } 85 86 private: 87 void ExecuteCommand(const Command& command) const; 88 bool CheckPropertyTriggers(const std::string& name = "", 89 const std::string& value = "") const; 90 91 std::map<std::string, std::string> property_triggers_; 92 std::string event_trigger_; 93 std::vector<Command> commands_; 94 bool oneshot_; 95 Subcontext* subcontext_; 96 std::string filename_; 97 int line_; 98 static const BuiltinFunctionMap* function_map_; 99 }; 100 101 } // namespace init 102 } // namespace android 103