What is a Mutex?

Hello, can anyone tell me what's a mutex?

Ping Laxon

Ping Laxon wrote:
> Hello, can anyone tell me what's a mutex?
>
> Ping Laxon

Mutual Exclusion Semaphore - a software device used by a set of
programs (or threads) to share a resource, one program at a time.
To use the resource, the program first grabs the mutex, then uses
the resource, then releases the mutex. Should another program
want the resource, it will be unable to grab the mutex and will
wait until the first program releases.
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Cheers, Bob