flashlight.h

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#ifndef FLASHLIGHT_H
#define FLASHLIGHT_H

#include "oldgcccompat.h" // Compatibilty macros for GCC < 4.7

#include <string>
#include <termios.h>
#include <vector>

#include <boost/thread.hpp>

namespace AlarmNotifications
{

class FlashLight
{
    typedef std::vector<uint8_t> deviceCommand ;
private:
    const std::string _deviceNode;
    boost::mutex _serialLineMutex;
    int _fd;
    bool _fdOpen;
    static const unsigned int deviceBaudRate = B9600; // Taken from the manual of the USB relais

    FlashLight();
    void switchInternal ( const bool lightSwitch );
    static deviceCommand createCommand ( const bool lightSwitch );
    void openSerialInterface();
    void configureSerialInterface();
    void writeSerialInteface ( const deviceCommand command );
    void closeSerialInterface();
public:
    static FlashLight& instance() noexcept;
    ~FlashLight();
    static void switchOn() noexcept;
    static void switchOff() noexcept;
    FlashLight ( const FlashLight& other ) = delete;
    FlashLight ( FlashLight&& other ) = delete;
    FlashLight& operator= ( const FlashLight& other ) = delete;
    FlashLight& operator= ( FlashLight&& other ) = delete;
};

}

#endif // FLASHLIGHT_H