Using Interlocked.Exchange(ref Enum, 1) to prevent re-entrancy [migrated]

Posted by makerofthings7 on Programmers See other posts from Programmers or by makerofthings7
Published on 2012-10-24T01:48:53Z Indexed on 2012/10/24 5:25 UTC
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Filed under:

c#

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.NET

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multithreading

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async

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locks

What options do I have for pending work that can't acquire a lock via the following sample?

System.Threading.Interlocked.CompareExchange<TrustPointStatusEnum>
(ref tp.TrustPointStatus, TrustPointStatusEnum.NotInitalized,TrustPointStatusEnum.Loading);

Based on my research think I have the following options:

I can use Threading.SpinWait (for very quick IO tasks) at the cost of CPU
I can use Sleep() which has an unreliable wake up time

I'm not sure of any other option, but what I want to make sure of is that all these options work with the .NET 4 async and await keywords, especially if I use Task to run them on a background thread

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