Does the iPhone Use Mutex?

[rs14smith]

Just curious if the iPhone uses mutual exclusion in it's Operating System?

If can someone explain how it does?

 

[robbieduncan]

It's a POSIX compliant Unix.

 

[rs14smith]

It's a POSIX compliant Unix.

Sorry for my lack of knowledge to put the pieces together, but does that mean it doesn't use mutual exclusion then, or it doesn't lol?

 

[robbieduncan]

Sorry for my lack of knowledge to put the pieces together, but does that mean it doesn't use mutual exclusion then, or it doesn't lol?

I assumed if you were asking a technical question like that then that would be a sufficient answer. It means mutexes are available within the treading model. Most likely they are used, but their availability does not imply or guarantee their usage.

 

[rs14smith]

I assumed if you were asking a technical question like that then that would be a sufficient answer.

Haha yeah, I'm in a OS class and still learning a lot about these components.
Do you know of a resource that explains this in a bit more death about how they are handled, as Google is failing me extremely.

 

[robbieduncan]

Haha yeah, I'm in a OS class and still learning a lot about these components.
Do you know of a resource that explains this in a bit more death about how they are handled, as Google is failing me extremely.

With reference to the iPhone? No. Otherwise Googling POSIX Mutex gives me sensible answers.

 

[rs14smith]

For any others that may need a decent Apple related article to the iOS dealing with mutual exclusion, here is a great source: http://developer.apple.com/library/...Multithreading/ThreadSafety/ThreadSafety.html

Thanks rob for your help.