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POShutting down a multithreaded application
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  1. POShutting down a multithreaded application
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    copied!<p>I'm trying to write a ThreadManager for my C# application. I create several threads:<br> One thread for my text writer.<br> One thread that monitors some statistics.<br> Multiple threads to perform a large sequence of calculations (up to 4 threads per core and I run my app on a 2x quad core server).</p> <p>My application normally runs for up to 24 hours at a time, so all the threads get created in the beginning and they persist through the entire time the app runs.</p> <p>I want to have a single place where I "register" all of my treads and when the application is shutting down I simply invoke a method and it goes through all of the registered threads and shuts them down.</p> <p>For that purpose I have devised the following class: </p> <pre><code>public class ThreadManager { private static Object _sync = new Object(); private static ThreadManager _instance = null; private static List&lt;Thread&gt; _threads; private ThreadManager() { _threads = new List&lt;Thread&gt;(); } public static ThreadManager Instance { get { lock (_sync) { if (_instance == null) { _instance = new ThreadManager(); } } return _instance; } } public void AddThread(Thread t) { lock (_sync) { _threads.Add(t); } } public void Shutdown() { lock (_sync) { foreach (Thread t in _threads) { t.Abort(); // does this also abort threads that are currently blocking? } } } } </code></pre> <p>I want to ensure that all of my threads are killed so the application can close properly and shutting down in the middle of some computation is just fine too. Should I be aware of anything here? Is this approach good given my situation?</p>
 

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