SerialConnection.h

#pragma once

class CSerialConnection final
{
public:
	CSerialConnection();
	~CSerialConnection();

	// --- Moving the CSerialConnection is allowed
	CSerialConnection(CSerialConnection&& other);
	CSerialConnection& operator=(CSerialConnection&& other);

	// --- This class manages a serial connction handle and is thus not copyable
	CSerialConnection(const CSerialConnection& ) = delete;
	CSerialConnection& operator=(const CSerialConnection&) = delete;

	/** Initializes the serial port communication using the provided speed and port number.
		@param speed The baudrate to use.
		@param portNumber The index of the port to use (e.g. 0 for COM0 or 3 for COM3)
		@return true If the connection was successfully opened, otherwise false. */
	bool Init(int portNumber, long speed);

	/** Initializes the serial port communication using the provided speed and a previously set port number.
		@param speed The baudrate to use.
		@return true If the connection was successfully opened, otherwise false. */
	bool Init(long speed);

	/** Initializes the serial port communication using an already set port and baudrate.
		This may be called after calling Init() (and closing the connection) OR after calling
		SetBaudrate(...) and SetPort(...).
		@return true If the connection was successfully opened, otherwise false. */
	bool Init();

	/** Setting the baudrate */
	void SetBaudrate(long speed) { this->baudrate = speed; }

	/** Setting the com-port to use */
	void SetPort(int portNumber);
	void SetPort(const CString& port);

	/** Getting the status */
	long GetBaudrate() const { return this->baudrate; }
	const char* GetPort() const { return this->serialPort;}

	/** Checks the serial port for more data. 
		@param timeOut The serial read timeout, in milliseconds.
		@return true if there is more data to be read out from 'Read' */
	bool Check(long timeOut);

	void	Write(void *ptTxt,long byteNum);
	long	Read(void *ptBuf,long byteNum);
	void	FlushSerialPort(long timeOut);
	void	Close();
	int		InitCommunication();
	int		ChangeBaudRate();
	void	CloseAll();
	int		ResetSpectrometer(long speed);

	// ---------------- Status of the communication ----------------

	/* Pointer to a running flag (in spectrometer->runFlag).
		If this is set (!= nullptr) then this flag will be checked before reading
		the gps and the reading will cancelled if this flag is set to false. */
	volatile bool* isRunning = nullptr;

private:
	// This is the handle to the serial port communication
	HANDLE hComm;

	/* data definition */
	char	serbuf[10];			// the serial communication buffer
	int		serbufpt;			// current character is serbuf[serbufpt]

	char serialPort[20];
	long m_delay;				/* communication delay */

	long baudrate;				// spectrometer baudrate
	long sysBaud;				// system baudrate

	long	br2;
	long	br1;

								//CString *statusMsg;			/* pointer to spectrometer->m_statusMsg */

	int startChn, stopChn;
};