How to create a thread-safe pool of objects?

Question

In my server application (written in C#), I need to create a pool of same type of objects. I pull an object from pool when I need, and it goes back to pool when it is no longer needed. Mechanism needs to be thread safe since different threads will be asking and submitting these objects. I understand that frequently locking something to make thread-safe has an adverse effect on application performance. Can you suggest a design by which I can even avoid explicit locks?

Please can you suggest the way I can accomplish above? Ability to resize the pool (create additional if running short of objects) would be a great add-on.

Thanks in advance...

Do NOT attempt to avoid explicit locks until you have EVIDENCE that locks are the #1 cause of UNACCEPTABLE performance. Locks are the vast majority of the time incredibly fast, and if your locks are slow then odds are good you have a deep design problem in your application. Remember, locks are only slow *under contention*, and if you have a lot of contention, *you're probably doing something wrong.* — Eric Lippert, Nov 18 '09 at 15:14

score 2 · Answer 1 · edited May 23 '17 at 11:48

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This post will be of interest:

ObjectPool<T> or similar for .NET already in a library?

edited May 23 '17 at 11:48

Community

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answered Nov 18 '09 at 13:42

spender

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score 1 · Answer 2 · answered Nov 18 '09 at 13:46

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I've had good luck with this one on CodeProject. I only had to make a minor tweak to how WeakReferences are stored, but other than that, it's running in production with no problems at all.

answered Nov 18 '09 at 13:46

Kilhoffer

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How to create a thread-safe pool of objects?

2 Answers2