Simple Real-Time Ticker Using C# / NET / WCF / WPF

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Diagnostics;

namespace WCFMarketDataServer
{
    //----------------------------------------------------------------------------------------------------------------
    /// <summary>
    /// This class contains parameters and otehr configuration information to 
    /// diagnose and set limits on internal state. 
    /// 
    /// This data should be read form the database, or config file. For this sample it is hard 
    /// coded.
    /// </summary>
    class CMarkerConfig
    {
        //------------------------------------------------------------
        public const int g_MaxCMDMsgQueueSz = 100;
        public const int g_MinCMDMsgQueuewaitMs = 5;

        //------------------------------------------------------------
        public const int g_MinLogMsgThresholdSec = 10;

        //------------------------------------------------------------
        static public bool g_bDiagnoseTick = true;


        //------------------------------------------------------------
        static public void LogError(string sMsg)
        {
            Log("ERROR: " + sMsg);
        }

        //------------------------------------------------------------
        static public void LogWarning(string sMsg)
        {
            Log("WARNING: " + sMsg);
        }

        //------------------------------------------------------------
        static public void LogInfo(string sMsg)
        {
            Log(sMsg);
        }

        //--------------------------------------------------------------------------------------------------------------------------------
        static public void LogExcptn(Exception ex)
        {
            Log(string.Format("ERROR: {0} \r\n {1}", ex.Message, ex.StackTrace));
        }

        //--------------------------------------------------------------------------------------------------------------------------------
        static private string Log(string sText)
        {
            //
            // Lock console stream since it can be called from multiple threads
            //
            lock (Console.Out)
            {
                Console.Write(string.Format("({1} - {0})  ", Thread.CurrentThread.ManagedThreadId.ToString("00000"), DateTime.Now.ToString("hh:mm:ss") ));
                Console.WriteLine(sText);

                //Debug.Write(Thread.CurrentThread.ManagedThreadId.ToString("00000  "));
                //Debug.WriteLine(sText);
            }
            return sText;
        }
    }



    //----------------------------------------------------------------------------------------------------------------
    /// <summary>
    /// This class controls the amount of message for the same type of error. This way we will not 
    /// flood the event log or log file with the same message.
    /// </summary>
    class CMsgTimer
    {
        private DateTime    m_DateTime = DateTime.Now;
        private int         m_SignalEverySec = 5;
        private bool        m_bReset = true;

        //------------------------------------------------------------
        public CMsgTimer(int iSignalEverySec)
        {
            m_SignalEverySec = iSignalEverySec;
        }

        //------------------------------------------------------------
        public void Reset()
        {
            m_DateTime = DateTime.Now;
            m_bReset = true;
        }

        //------------------------------------------------------------
        public bool Signal()
        {
            // 
            if (m_bReset)
            {
                m_DateTime = DateTime.Now;
                m_bReset = false;
                return true;
            }

            // Chech to see if it is time to signal
            if (m_SignalEverySec < DateTime.Now.Subtract(m_DateTime).TotalSeconds)
            {
                m_DateTime = DateTime.Now;
                return true;
            }

            return false;
        }
    }
}