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Using Interlocked to allow a single thread access to a resoure.(lysaghtn.weebly.com)

submitted by bigtoebigtoe(25) 3 years, 11 months ago

Using SyncLock (or lock in C#) to block all threads accessing a block of code can be overkill. SyncLock requires that all CPU instructions be cleared from the registers so that thread synchronization can be performed safely and it also requires a lot of management by the .NET threading libraries. In certain situation where multiple threads are running, you may require that just a single thread execute a piece of code at any one time. I've used this in situations where multiple threads are there for performance reasons but only 1 thread at a time should say clear down/refresh cache entries, but any of those threads could do the work.

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posted by gregbeechgregbeech(76) 3 years, 11 months ago 0

You might also want to check out Jeffrey Richter's SpinWaitLock which is a more complete implementation of the same concept (with the required things such as Begin/EndCriticalRegion calls): http://msdn.microsoft.com/en-us/magazine/cc163726.aspx

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