134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _INIT_ACTION_H
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#define _INIT_ACTION_H
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#include <map>
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#include <queue>
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#include <string>
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#include <vector>
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#include "builtins.h"
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#include "init_parser.h"
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#include "keyword_map.h"
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class Command {
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public:
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Command(BuiltinFunction f, const std::vector<std::string>& args,
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const std::string& filename, int line);
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int InvokeFunc() const;
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std::string BuildCommandString() const;
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std::string BuildSourceString() const;
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private:
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BuiltinFunction func_;
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std::vector<std::string> args_;
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std::string filename_;
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int line_;
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};
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class Action {
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public:
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Action(bool oneshot = false);
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bool AddCommand(const std::vector<std::string>& args,
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const std::string& filename, int line, std::string* err);
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void AddCommand(BuiltinFunction f,
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const std::vector<std::string>& args,
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const std::string& filename = "", int line = 0);
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void CombineAction(const Action& action);
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bool InitTriggers(const std::vector<std::string>& args, std::string* err);
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bool InitSingleTrigger(const std::string& trigger);
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std::size_t NumCommands() const;
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void ExecuteOneCommand(std::size_t command) const;
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void ExecuteAllCommands() const;
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bool CheckEventTrigger(const std::string& trigger) const;
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bool CheckPropertyTrigger(const std::string& name,
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const std::string& value) const;
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bool TriggersEqual(const Action& other) const;
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std::string BuildTriggersString() const;
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void DumpState() const;
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bool oneshot() const { return oneshot_; }
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static void set_function_map(const KeywordMap<BuiltinFunction>* function_map) {
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function_map_ = function_map;
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}
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private:
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void ExecuteCommand(const Command& command) const;
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bool CheckPropertyTriggers(const std::string& name = "",
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const std::string& value = "") const;
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bool ParsePropertyTrigger(const std::string& trigger, std::string* err);
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std::map<std::string, std::string> property_triggers_;
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std::string event_trigger_;
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std::vector<Command> commands_;
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bool oneshot_;
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static const KeywordMap<BuiltinFunction>* function_map_;
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};
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class Trigger {
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public:
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virtual ~Trigger() { }
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virtual bool CheckTriggers(const Action& action) const = 0;
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};
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class ActionManager {
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public:
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static ActionManager& GetInstance();
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void AddAction(std::unique_ptr<Action> action);
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void QueueEventTrigger(const std::string& trigger);
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void QueuePropertyTrigger(const std::string& name, const std::string& value);
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void QueueAllPropertyTriggers();
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void QueueBuiltinAction(BuiltinFunction func, const std::string& name);
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void ExecuteOneCommand();
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bool HasMoreCommands() const;
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void DumpState() const;
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private:
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ActionManager();
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ActionManager(ActionManager const&) = delete;
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void operator=(ActionManager const&) = delete;
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std::vector<std::unique_ptr<Action>> actions_;
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std::queue<std::unique_ptr<Trigger>> trigger_queue_;
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std::queue<const Action*> current_executing_actions_;
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std::size_t current_command_;
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};
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class ActionParser : public SectionParser {
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public:
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ActionParser() : action_(nullptr) {
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}
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bool ParseSection(const std::vector<std::string>& args,
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std::string* err) override;
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bool ParseLineSection(const std::vector<std::string>& args,
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const std::string& filename, int line,
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std::string* err) const override;
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void EndSection() override;
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void EndFile(const std::string&) override {
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}
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private:
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std::unique_ptr<Action> action_;
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};
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#endif
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