buzzer.h

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/* buzzer.h
 *
 * Copyright (c) 2017 Thomas Kais
 *
 * This file is subject to the terms and conditions defined in
 * file 'COPYING', which is part of this source code package.
 */
#ifndef BUZZER_H
#define BUZZER_H
 
//detect pigpio library
#if defined (__arm__) && __has_include(<pigpiod_if2.h>)
#define BUZZER_AVAILABLE
#endif
 
#include <QObject>
 
#include <atomic>
 
namespace FotoBox {
 
class Buzzer : public QObject
{
    Q_OBJECT
 
public:
    explicit Buzzer(QObject *parent = nullptr);
 
    ~Buzzer() override;
 
    Buzzer(const Buzzer &) = delete;
 
    Buzzer &operator=(const Buzzer &) = delete;
 
    Buzzer(Buzzer &&other) = delete;
 
    Buzzer &operator=(Buzzer &&other) = delete;
 
    auto initialise() -> bool;
 
    auto static checkDeamon() -> bool;
 
    void stop();
 
public Q_SLOTS:
    void queryPin();
 
Q_SIGNALS:
    void triggered();
 
private:
    int m_pi{-1};
    std::atomic<bool> m_stop{false};
};
 
} // end namespace FotoBox
 
#endif // BUZZER_H