Abandoned named semaphore not released

Question

when a C# program holds a named semaphore, it does not seem to be released when the application is terminated early (for example by pressing Ctrl+C or closing the console wi

Answer 1

You can write the mySemaphore.Release(); in class destructor

class Program
{
    ~Program()  // destructor
    {
        mySemaphore.Release();
    }
}

or add a finally pharse to your try\catch

try{}
catch{}
finally 
{
    mySemaphore.Release();
}

If you are using asp.net you can also use Application_End which located in Global.asax.cs

protected void Application_End(Object sender, EventArgs eventArgs)
{
    mySemaphore.Release();
}