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Of course 'size' can be used within the second thread. Why would you think it cannot?
what I mean is that when f1() is in the critical section, and modifing size, f2() can't use it. f2() only can use it when f1() has finished the critical section.
I don't know if I'm explaining myself. Sorry for my english
---------- Post added 10-24-12 at 06:24 PM ----------
Quote:
Originally Posted by dwhitney67
If you want to prevent f2 from using 'size' while f1 is using/modifying it, then use the mutex (in both threads) to prevent concurrent access to it.
I need just that, could you tell me how to do it? thank you dwhitney67
what I mean is that when f1() is in the critical section, and modifing size, f2() can't use it. f2() only can use it when f1() has finished the critical section.
I don't know if I'm explaining myself. Sorry for my english
It took me a moment to understand you; see my follow-up post about protecting access to 'size' using the mutex.
could you show me how to do that dwhitney67? I've seen several examples where both pthreads use the same code, but in my case both pthreads use different codes, so I don't know how to do it exactly
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