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