How to kill a mutex object?

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For cache update, i want to delete the mutex if already exists.

Please let me know what is the code for deleting the mutex in C# 4.0

Thanks..

Posted 14-Dec-15 19:51pm

vksvpp

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Sergey Alexandrovich Kryukov 15-Dec-15 2:57am

First of all, are you sure you need mutex, not simple lock statement? Why?
—SA

vksvpp 15-Dec-15 3:50am

mutex concept was suggested by my senior. datas are loaded as memorymappedfile with mutex using hashkey and that mutex and memorymappedfile is deleted if any delete operation performs

Sergey Alexandrovich Kryukov 15-Dec-15 9:53am

Then please answer: do use your mutex between two or more different processes (not thread, processes)?
Do you understand mutual exclusion yourself? (I would not ask about it if you did not mention the "senior".)
—SA

Sinisa Hajnal 15-Dec-15 3:10am

What have you tried?

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-12-14T21:07:00

"Kill" is not the same as "delete", and none of the concepts are applicable to System.Threading.Mutex. Generally, CLI objects don't need deletion, because the platform is managed. But with Mutex, you need to call IDisposable.Dispose() when this object is no longer needed, and this interface method is implemented by System.Threading.WaitHandle.Dispose():
https://msdn.microsoft.com/en-us/library/dd384809%28v=vs.110%29.aspx[^].

Moreover, the only reason why this interface is implemented is that those WaitHandle classes are based on unmanaged Windows API objects. Using this interface is the usual technique of unmanaged disposing of such objects.

Also, I'm not sure you really need Mutex. A number of users with native programming experience are unaware of .NET lock mechanism: https://msdn.microsoft.com/en-us/library/c5kehkcz.aspx[^].

—SA