updown/jellyfish/demo/CDX.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;

namespace demo
{
    class CDX
    {
        public static Socket client;
        public static byte[] measureCmd = { 0x30, 0x02, 0x0D, 0x60 };

        public static bool SendMsgToServer(byte[] msg, int timeOut = 0)
        {
            bool ret = false;
            try
            {
                client.SendTimeout = timeOut;
                int len = msg.Length;
                int retLen = client.Send(msg);
                if (len == retLen)
                {
                    ret = true;
                }
            }
            catch (System.Exception ex)
            {
                throw new Exception(ex.Message);
            }
            return ret;
        }

        public static bool ReceiveMsg(byte[] buffer, int timeOut = 0)
        {
            bool ret = false;
            try
            {
                client.ReceiveTimeout = timeOut;
                int recvLen = client.Receive(buffer);
                if (recvLen > 0)
                {
                    ret = true;
                }
            }
            catch (System.Exception ex)
            {
                throw new Exception(ex.Message);
            }
            return ret;
        }

        public static bool ReceiveMsg(ref double val, int timeOut = 0)
        {
            bool ret = false;
            byte[] buffer = new byte[10];
            try
            {
                client.ReceiveTimeout = timeOut;
                int receiveCount = client.Receive(buffer);
                if (receiveCount > 0)
                {
                    ret = true;
                    byte[] temp = new byte[10];
                    //for (int i = 2; i <= receiveCount;i++ )
                    //{
                        
                    //}
                    temp = buffer.Skip(2).Take(receiveCount - 2).ToArray();
                    //buffer.CopyTo(temp, 2);
                    string str = null;
                    for (int i = 0; i < temp.Length; i++)
                    {
                        str += temp[i].ToString("X2");
                    }
                    val = Convert.ToInt32(str, 16);
                    val = val / 1000000;
                    //byte[] tempBuffer = new byte[receiveCount];
                    //Buffer.BlockCopy(buffer, 2, tempBuffer, 2, receiveCount);
                    //msg = Encoding.Default.GetString(tempBuffer);
                }
            }
            catch (System.Exception ex)
            {
                throw new Exception(ex.Message);
            }
            return ret;
        }
    }
}