Best timer approach in c # batch application

Question

What is the best timer approach for a C # console application that should be handled as follows:

• Connect to data sources
• a process batch before the timeout or processing termination. "Do something with data sources"
• terminate the console application gracefully.

related question: How to add a timer to a C # console application

Answer 1

Sorry this is just a console application ... but here is a complete console application to help you get started. Again, I attribute so much code, but everyone else seems to give "oh, all you have to do is do it" :)

using System;
using System.Collections.Generic;
using System.Threading;

namespace ConsoleApplication1
{
    class Program
    {
        static List<RunningProcess> runningProcesses = new List<RunningProcess>();

        static void Main(string[] args)
        {
            Console.WriteLine("Starting...");

            for (int i = 0; i < 100; i++)
            {
                DoSomethingOrTimeOut(30);
            }

            bool isSomethingRunning = false;

            do
            {
                foreach (RunningProcess proc in runningProcesses)
                {
                    // If this process is running...
                    if (proc.ProcessThread.ThreadState == ThreadState.Running)
                    {
                        isSomethingRunning = true;

                        // see if it needs to timeout...
                        if (DateTime.Now.Subtract(proc.StartTime).TotalSeconds > proc.TimeOutInSeconds)
                        {
                            proc.ProcessThread.Abort();
                        }
                    }
                }
            }
            while (isSomethingRunning);

            Console.WriteLine("Done!");    

            Console.ReadLine();
        }

        static void DoSomethingOrTimeOut(int timeout)
        {
            runningProcesses.Add(new RunningProcess
            {
                StartTime = DateTime.Now,
                TimeOutInSeconds = timeout,
                ProcessThread = new Thread(new ThreadStart(delegate
                  {
                      // do task here...
                  })),
            });

            runningProcesses[runningProcesses.Count - 1].ProcessThread.Start();
        }
    }

    class RunningProcess
    {
        public int TimeOutInSeconds { get; set; }

        public DateTime StartTime { get; set; }

        public Thread ProcessThread { get; set; }
    }
}

Answer 2

, . , , :

DateTime runUntil = DataTime.Now.Add(timeout);
forech(Task task in tasks)
{
   if(DateTime.Now >= runUntil)
   {
        throw new MyException("Timeout");
   }
   Process(task);
}

mulithreaded, , , , . System.Timers: http://msdn.microsoft.com/en-us/library/system.timers.timer(VS.71).aspx Thread.Sleep. -, , , .

Answer 3

" -", " , "? , , , - , , , . , .. , , .

EDIT: , :

List<DataSource> dataSources = ConnectToDataSources();
TimeSpan timeout = GetTimeoutFromConfiguration(); // Or have it passed in!
DateTime endTime = DateTime.UtcNow + timeout;

bool finished = false;
while (DateTime.UtcNow < endTime && !finished)
{
    // This method should do a small amount of work and then return
    // whether or not it finished everything
    finished = ProcessDataSources(dataSources);
}

// Done - return up the stack and the console app will close.

, , .., , , .