ReleaseMutex and ManualResetEvent.WaitOne at the same time.

Question

I have a queue like object I want to syncronize access to.  Code that receives from the queue will first lock a mutex, check that the queue has entries, then if the queue is empty, both ReleaseMutex the mutex and WaitOne on a ManualResetEvent which is signaled when an item is placed on the queue. 

Can I atomically ReleaseMutex and Event.WaitOne at the same time?

thanks,

Answer 1

I got it. SignalAndWait.

Answer 2

Hi Steve

WaitHandle.SignalAndWait (http://msdn.microsoft.com/en-us/library/system.threading.waithandle.signalandwait.aspx) corresponds to the Windows API: SignalObjectAndWait (http://msdn.microsoft.com/en-us/library/ms686293(VS.85).aspx). So if you'd like to do it in native code in future, you can consider this API.

Have a nice day!

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Regards,
Jialiang Ge
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Answer 3

Thanks! It's very useful.

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Dave