C# - Singletons Running On Web Applications?
Dec 10, 2010
I have a question about Singletons running within IIS (6,7,7.5) and an ASP.NET 4.0 Web Application (MVC3 app to be specific).
I have a singleton object in my project that is accessed and used in the global.ascx, on the application_start, as well as a few other places within the application.
My concern is, this singleton needs to be accessable at a per instance scenario. However, since IIS is essentially the hosting process, is the singleton going to be the same object across all instances of the application?
If I use the [ThreadStatic] keyword, does it seperate at the Application Pool level?
Finally, is there a way, I can assure a singleton is only a singleton per instance of my application. i.e. if I run my application on 1 website, but inside 5 virtual directories, there is 5 instances of the singleton or if I run my website on 5 different websites within the same application pool.
[code]....
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