LTT Source에 들어가는 Module Dll
장정호
2020-12-15 dd4a016ef8fc5cae0cbd336a5bdec4651b1d87c1
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using log4net;
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
 
namespace DIT.Framework.Module
{
    /// <summary>
    /// Serial Module을 제어하기 위한 클래스
    /// </summary>
    public class SerialModule
    {
        /// <summary>
        /// Exception Log
        /// </summary>
        private ILog ExceptionLog = LogManager.GetLogger("SerialException");
 
        /// <summary>
        /// Exception Log 사용유무 확인
        /// </summary>
        public bool UseExceptionLog { get; set; }
 
        /// <summary>
        /// Exception Log를 기록하기 위한 메서드
        /// </summary>
        /// <param name="msg">Error Message</param>
        private void WriteExceptionLog(string msg)
        {
            if (UseExceptionLog)
                ExceptionLog.Debug(msg);
        }
 
        /// <summary>
        /// lock 제어를 하기 위함.
        /// </summary>
        private object thislock;
 
        /// <summary>
        /// lock 제어를 하기 위함.
        /// </summary>
        private bool lockcheck;
 
        /// <summary>
        /// SerialPort와 직접 통신.
        /// </summary>
        private SerialPort _serialPort;
 
        /// <summary>
        /// SerialPort에서 받은 Data를 Encoding형식에 맞게 Parsing하기 위함.
        /// </summary>
        public Encoding EncodeType { get { return encodeType; } private set { encodeType = value; } }
        private Encoding encodeType;
 
        /// <summary>
        /// Carriage Return
        /// </summary>
        public char CR { get { return '\r'; }}
 
        /// <summary>
        /// Line Feed
        /// </summary>
        public char LF { get { return '\n'; }}
 
        public char Spliiter { get { return splitter; } private set { splitter = value; } }
        private char splitter;
 
        /// <summary>
        /// SerialPort의 Open 여부
        /// </summary>
        public bool isOpen { get { return _serialPort.IsOpen; } }
 
        /// <summary>
        /// Splitter로 Split하기 전 Data를 모아두는 저장소.
        /// </summary>
        private List<byte> RecvData;
 
        /// <summary>
        /// encodeType을 설정해주는 메서드
        /// </summary>
        /// <param name="encodeType"></param>
        public void SetEncodeType(Encoding encodeType)
        {
            this.EncodeType = encodeType;
        }
 
        /// <summary>
        /// SerialPort를 생성하고 내부 Data를 설정하는 생성자.(Base Encoding은 ASCII)
        /// </summary>
        /// <param name="PortName"> Port이름 ex)COM6, COM13 </param>
        /// <param name="BaudRate"> 전송속도 ex)4800, 9600, 19200 </param>
        /// <param name="Splitter"> Data의 마지막을 확인할 문자 기본 '\r' </param>
        /// <param name="DataBits"> 바이트 당 데이터 비트의 표준길이 ex)5, 6, 7, 8 </param>
        /// <param name="Parity">패리티 검사 프로토콜 ex)Ports.Parity.None </param>
        /// <param name="StopBits">비트당 정지비트의 표준 개수 ex)Ports.StopBits.One </param>
        /// <param name="Handshake">직렬 전송을 위한 핸드셰이킹 ex)Ports.Handshake.None</param>
        public SerialModule(string PortName, int BaudRate, char Spliiter = '\r', int DataBits = 8, Parity Parity = Parity.None, StopBits StopBits = StopBits.One, Handshake Handshake = Handshake.None)
        {
            thislock = new object();
            RecvData = new List<byte>();
            _serialPort = new SerialPort();
            _serialPort.PortName = PortName;
            _serialPort.BaudRate = BaudRate;
            _serialPort.DataBits = DataBits;
            _serialPort.Parity = Parity;
            _serialPort.StopBits = StopBits;
            _serialPort.Handshake = Handshake;
            _serialPort.ReadTimeout = 500;
            _serialPort.WriteTimeout = 500;
            this.Spliiter = Spliiter;
            EncodeType = Encoding.ASCII;
        }
 
        /// <summary>
        /// SerialPort를 생성하고 내부 Data를 설정하는 생성자.(Base Encoding은 ASCII)
        /// </summary>
        /// <param name="PortName"> Port이름 ex)COM6, COM13 </param>
        /// <param name="BaudRate"> 전송속도 ex)4800, 9600, 19200 </param>
        /// <param name="DataBits"> 바이트 당 데이터 비트의 표준길이 ex)5, 6, 7, 8 </param>
        /// <param name="Parity">패리티 검사 프로토콜 ex)Ports.Parity.None </param>
        /// <param name="StopBits">비트당 정지비트의 표준 개수 ex)Ports.StopBits.One </param>
        /// <param name="Handshake">직렬 전송을 위한 핸드셰이킹 ex)Ports.Handshake.None</param>
        public SerialModule(string PortName, int BaudRate, int DataBits = 8, Parity Parity = Parity.None, StopBits StopBits = StopBits.One, Handshake Handshake = Handshake.None)
        {
            thislock = new object();
            RecvData = new List<byte>();
            _serialPort = new SerialPort();
            _serialPort.PortName = PortName;
            _serialPort.BaudRate = BaudRate;
            _serialPort.DataBits = DataBits;
            _serialPort.Parity = Parity;
            _serialPort.StopBits = StopBits;
            _serialPort.Handshake = Handshake;
            _serialPort.ReadTimeout = 500;
            _serialPort.WriteTimeout = 500;
            EncodeType = Encoding.ASCII;
        }
 
        /// <summary>
        /// 사용가능한 Portname을 반환.
        /// </summary>
        /// <returns>Portname 값</returns>
        public static string[] GetPorts()
        {
            return SerialPort.GetPortNames();
        }
 
        /// <summary>
        /// 설정 Port Open
        /// </summary>
        /// <returns>성공 실패 여부</returns>
        public bool Open()
        {
            try
            {
                _serialPort.Open();
                return true;
            }
            catch(Exception e)
            {
                WriteExceptionLog(e.Message);
                return false;
            }
        }
 
        /// <summary>
        /// 설정 Port Close
        /// </summary>
        /// <returns>성공 실패 여부</returns>
        public bool Close()
        {
            try
            {
                _serialPort.Close();
                return true;
            }
            catch(Exception e)
            {
                WriteExceptionLog(e.Message);
                return false;
            }
        }
        
        /// <summary>
        /// SerialPort에 Data를 보내기 위한 메서드
        /// </summary>
        /// <param name="sCmd">string형 Data</param>
        /// <returns></returns>
        public bool SendData(string sCmd)
        {
            try
            {
                lock(thislock)
                {
                    while(lockcheck)
                        Monitor.Wait(thislock);
 
                    lockcheck = true;
                    _serialPort.Write(sCmd);
                    lockcheck = false;
 
                    Monitor.Pulse(thislock);
                }
                return true;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return false;
            }
        }
 
        /// <summary>
        /// SerialPort에 Data를 보내기 위한 메서드
        /// </summary>
        /// <param name="bCmd">byte형 배열 Data</param>
        /// <returns></returns>
        public bool SendData(byte[] bCmd)
        {
            try
            {
                lock (thislock)
                {
                    while (lockcheck)
                        Monitor.Wait(thislock);
 
                    lockcheck = true;
                    _serialPort.Write(bCmd, 0, bCmd.Length);
                    lockcheck = false;
 
                    Monitor.Pulse(thislock);
                }
                
                return true;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return false;
            }
        }
 
        /// <summary>
        /// SerialPort에 Data를 보내기 위한 메서드
        /// </summary>
        /// <param name="cCmd">char형 배열 Data</param>
        /// <returns></returns>
        public bool SendData(char[] cCmd)
        {
            try
            {
                lock (thislock)
                {
                    while (lockcheck)
                        Monitor.Wait(thislock);
 
                    lockcheck = true;
                    _serialPort.Write(cCmd, 0, cCmd.Length);
                    lockcheck = false;
 
                    Monitor.Pulse(thislock);
                }
               
                return true;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return false;
            }
        }
 
        /// <summary>
        /// SerialPort에 Data를 보낸후 Read 대기
        /// </summary>
        /// <param name="sCmd">string Data</param>
        /// <returns></returns>
        public byte[] SendWaitData(string sCmd)
        {
            try
            {
                byte[] recvbyte;
                lock (thislock)
                {
                    while (lockcheck)
                        Monitor.Wait(thislock);
 
                    lockcheck = true;
 
                    _serialPort.BaseStream.Flush();
 
                    _serialPort.Write(sCmd);
                    RecvData.Clear();
                    byte[] bytes;
                    DateTime check = DateTime.Now;
                    while (true)
                    {
                        if (_serialPort.BytesToRead > 0)
                        {
                            bytes = new byte[_serialPort.BytesToRead];
                            _serialPort.Read(bytes, 0, bytes.Length);
 
                            if (CheckData(bytes))
                            {
                                break;
                            }
                        }
 
                        if ((DateTime.Now - check).TotalMilliseconds > _serialPort.ReadTimeout)
                        {
                            bytes = null;
                            break;
                        }
                    }
                    recvbyte = RecvData.ToArray();
                    lockcheck = false;
                    Monitor.Pulse(thislock);
                }
                return recvbyte;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return null;
            }
        }
 
        /// <summary>
        /// SerialPort에 Data를 보낸후 Read 대기
        /// </summary>
        /// <param name="bCmd">byte형 배열 Data</param>
        /// <returns></returns>
        public byte[] SendWaitData(byte[] bCmd)
        {
            try
            {
                byte[] recvbyte;
                lock (thislock)
                {
                    while (lockcheck)
                        Monitor.Wait(thislock);
 
                    lockcheck = true;
 
                    _serialPort.BaseStream.Flush();
 
                    _serialPort.Write(bCmd, 0, bCmd.Length);
                    RecvData.Clear();
                    byte[] bytes;
                    DateTime check = DateTime.Now;
                    while (true)
                    {
                        if (_serialPort.BytesToRead > 0)
                        {
                            bytes = new byte[_serialPort.BytesToRead];
                            _serialPort.Read(bytes, 0, bytes.Length);
 
                            if (CheckData(bytes))
                            {
                                break;
                            }
                        }
 
                        if ((DateTime.Now - check).TotalMilliseconds > _serialPort.ReadTimeout)
                        {
                            bytes = null;
                            break;
                        }
                    }
 
                    recvbyte = RecvData.ToArray();
                    lockcheck = false;
                    Monitor.Pulse(thislock);
                }
                return recvbyte;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return null;
            }
        }
 
        /// <summary>
        /// SerialPort에 Data를 보낸후 Read 대기
        /// </summary>
        /// <param name="cCmd">char형 배열 Data</param>
        /// <returns></returns>
        public byte[] SendWaitData(char[] cCmd)
        {
            try
            {
                byte[] recvbyte;
                lock (thislock)
                {
                    while (lockcheck)
                        Monitor.Wait(thislock);
                                        
                    lockcheck = true;
 
                    _serialPort.BaseStream.Flush();
 
                    _serialPort.Write(cCmd,0,cCmd.Length);
                    RecvData.Clear();
                    byte[] bytes;
                    DateTime check = DateTime.Now;
                    while (true)
                    {
                        if (_serialPort.BytesToRead > 0)
                        {
                            bytes = new byte[_serialPort.BytesToRead];
                            _serialPort.Read(bytes, 0, bytes.Length);
 
                            if (CheckData(bytes))
                            {
                                break;
                            }
                        }
 
                        if ((DateTime.Now - check).TotalMilliseconds > _serialPort.ReadTimeout)
                        {
                            bytes = null;
                            break;
                        }
                    }
 
                    recvbyte = RecvData.ToArray();
                    lockcheck = false;
                    Monitor.Pulse(thislock);
                }
 
                return recvbyte;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                lockcheck = false;
                return null;
            }
        }
 
        /// <summary>
        /// Splitter Data의 유무를 판별하기 위한 메서드
        /// </summary>
        /// <param name="bytes">SerialPort에서 받은 Data</param>
        /// <returns></returns>
        private bool CheckData(byte[] bytes)
        {
            try
            {
                char[] datas = Encoding.ASCII.GetChars(bytes);
 
                RecvData.AddRange(bytes);
 
                if (datas.Contains(Spliiter))
                    return true;
                else
                    return false;
            }
            catch (Exception e)
            {
                WriteExceptionLog(e.Message);
                return false;
            }
        }
    }
}