serial.h

一个通讯管理机的源代码。比较好用。推荐

/***************************************************************************
                          serial.h  -  description
                             -------------------
    begin                : Thu Nov 8 2001
    copyright            : (C) 2001 by 
    email                : 
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef SERIAL_H
#define SERIAL_H

#include "msystem.h"
#include "channelmgr.h"
//#include "Device.h"
//#include <iosfwd>

/**
  *@author 
  */
namespace Serial {
enum BaudRateEnum {
	BAUD_50    = B50,         //!< 50 baud.
	BAUD_75    = B75,         //!< 75 baud.
	BAUD_110   = B110,        //!< 110 baud.
	BAUD_134   = B134,        //!< 134.5 baud. Yes 134.5. I did not mistype that.
	BAUD_150   = B150,        //!< 150 baud.
	BAUD_200   = B200,        //!< 200 baud.
	BAUD_300   = B300,        //!< 300 baud.
	BAUD_600   = B600,        //!< 600 baud.
	BAUD_1200  = B1200,       //!< 1200 baud.
	BAUD_1800  = B1800,       //!< 1800 baud.
	BAUD_2400  = B2400,       //!< 2400 baud.
	BAUD_4800  = B4800,       //!< 4800 baud.
	BAUD_9600  = B9600,       //!< 9600 baud.
	BAUD_19200 = B19200,      //!< 19200 baud.
	BAUD_38400 = B38400,      //!< 38400 baud.
	BAUD_INVALID              //!< Invalid baud rate.
} ;

      /** The allowed values of character sizes that can be used
	  during the serial communication.

       */
enum CharSizeEnum {
	CHAR_SIZE_5 = CS5, //!< 5 bit characters.
	CHAR_SIZE_6 = CS6, //!< 6 bit characters.
	CHAR_SIZE_7 = CS7, //!< 7 bit characters.
	CHAR_SIZE_8 = CS8, //!< 8 bit characters.
	CHAR_SIZE_INVALID  //!< Invalid character size.
} ;

      /** The allowed values of the parity associated with the serial
	  port communications.
	
      */
enum ParityEnum {
	PARITY_EVEN,     //!< Even parity.
	PARITY_ODD,      //!< Odd parity.
	PARITY_NONE,     //!< No parity i.e. parity checking disabled.
	PARITY_INVALID   //!< Invalid parity value.
} ;

      /** The values of the flow control settings for a serial
	  port.

       */
enum FlowControlEnum {
	FLOW_CONTROL_HARD,   //!< Hardware flow control.
	FLOW_CONTROL_SOFT,   //!< Software flow control.
	FLOW_CONTROL_INVALID //!< Invalid flow control setting.
} ;

class CSerial {
public:
	CSerial(CSerialPortDef *pChannel)
	{
		m_pChannel = pChannel;
		m_hFile = -1;
	}
	~CSerial()
	{
		if (IsOpen()) Close();
		m_hFile = -1;
	}
	bool Open();
	int GetFileHandle() {return m_hFile;}
	void Close();
protected:
	int m_hFile;
	bool IsOpen() const
	{
		return (-1 != m_hFile) ;
	}
	const BaudRateEnum SetBaudRate(const BaudRateEnum baud_rate) ;
	const BaudRateEnum BaudRate() const ;
	const CharSizeEnum CharSize() const ;
	const CharSizeEnum SetCharSize(const CharSizeEnum char_size) ;
	short SetNumOfStopBits(short stop_bits) ;
	short NumOfStopBits() const ;
	const ParityEnum SetParity(const ParityEnum parity) ;
	const ParityEnum Parity() const ;
	const FlowControlEnum SetFlowControl(const FlowControlEnum flow_c) ;
	const FlowControlEnum FlowControl() const ;
	CSerialPortDef*	m_pChannel;
	bool InitializeSerialPort();
	bool SetParameters();
	//Character used to signal that I/O can start while using software flow control with the serial port.
	static const char CTRL_Q = 0x11 ;

	//Character used to signal that I/O should stop while using software flow control with the serial port.
	static const char CTRL_S = 0x13 ;
};//end class
}; //end namespace
#endif