Create custom monitor

Question

Hi All,

I have a requirement like I have to monitor for one event for maximum 1 minute if the event comes within that time I can continue. Otherwise make it as failed. This I can do using auto reset event. But I have one more requirement if its in waiting state if user pressed cancel that time I have to cancel it and make it as stopped.
I am not getting an optimal solution.

below is my code snippet.

public Result Start()
{
if (myAutoResetEvent.WaitOne(new TimeSpan(0, 0, 0, 60)))
{

                Done(Result.OK);
            }
          else
           {
             CleanUp();

            }

public Result Stop()
{
//here i have to release the myAutoResetEvent and call the cleanup.
}

private void EventChanged(object sender,EventArgs arg)
{
myAutoResetEvent.Set();
}

Please suggest an optimal solution.

Thanks in advance...

Answer 1

I think this function should be completed by Timer.

I wrote a simple example, counting down the number.

If the entire process exceeds the time I set (5 seconds in this example), the process stops, and if I click the stop button, it also stops.

    public partial class Form1 : Form  
    {  
        public Form1()  
        {  
            InitializeComponent();  
        }  
        public DateTime StartDateTime { get; set; }  
        private void Form1_Load(object sender, EventArgs e)  
        {  
            timer1.Tick += Timer1_Tick;  
        }  
        int timeLeft = 100;  
        private void Timer1_Tick(object sender, EventArgs e)  
        {  
            TimeSpan duration = new TimeSpan(DateTime.Now.Ticks - StartDateTime.Ticks);  
            Console.WriteLine(duration.TotalSeconds);  
            if (duration.TotalSeconds>5)  
            {  
                timer1.Stop();  
            }  
            if (timeLeft > 0)  
            {  
                timeLeft = timeLeft - 1;  
                textBox1.Text = timeLeft.ToString();  
            }  
            else  
            {  
                timer1.Stop();  
                textBox1.Text = "Time's up!";  
                MessageBox.Show("You didn't finish in time.", "Sorry!");  
                startBtn.Enabled = true;  
            }  
        }  
        private void startBtn_Click(object sender, EventArgs e)  
        {  
            timer1.Start();  
            StartDateTime = DateTime.Now;  
        }  
        private void stopBtn_Click(object sender, EventArgs e)  
        {  
            timer1.Stop();  
        }  
    }  

Does this logic meet your requirements?

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Answer 2

 WaitHandle[] handle = {myWaitEvent, myStopEvent};

            while (true)
            {
                var evtSignaled = WaitHandle.WaitAny(handle, new TimeSpan(0, 0, WaitTimeOut, 0));//1 minute wait
                if (evtSignaled == 0)
                    Done(Result.OK);
                if (evtSignaled == 1)
                    break;
                if (evtSignaled == WaitHandle.WaitTimeout)
                   CleanUp();
                break;

            }

I found one solution, here i am using 2 auto reset events one for Waiting and other for stop. If wait event triggered within 1 minute will execute in that path. If it is timed out then will execute in the cleanup part. If i pressed stop then i will break from the loop.

Is there any better solution for this?
How is this solution?