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allwpilib/wpilibc/src/main/native/include/frc/event/EventLoop.h

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// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#pragma once
#include <functional>
#include <list>
#include <wpi/FunctionExtras.h>
#include <wpi/SmallVector.h>
namespace frc {
/** The loop polling BooleanEvent objects and executing the actions bound to
* them. */
class EventLoop {
public:
EventLoop();
/**
* Bind a new action to run whenever the condition is true.
*
* @param condition the condition to listen to.
* @param action the action to run.
*/
void Bind(std::function<bool()> condition,
wpi::unique_function<void()> action);
/**
* Poll all bindings.
*/
void Poll();
/**
* Clear all bindings.
*/
void Clear();
private:
struct Binding {
std::function<bool()> condition;
wpi::unique_function<void()> action;
void Poll();
};
std::list<Binding> m_bindings;
};
} // namespace frc