what does ReleaseSemaphore() releases?

Once I call ReleaseSemaphore(), can I re-OpenSemaphore() the Semaphore object without the need of calling for CreateSemaphore() again?


btw, can I use the same Semaphore for more than one thread? Or should I create a Semaphore per thread?


Thank you.

>> Once I call ReleaseSemaphore(), can I re-OpenSemaphore() the Semaphore object without the need of calling for CreateSemaphore() again? <<

A semaphore is destroyed once all handles to it are destroyed, either explicitly with CloseHandle or implicitly by process termination. ReleaseSemaphore increases the count of a semaphore. It does not close a semaphore. You do not need to call OpenSemaphore, a semaphore handle remains valid until you close it.

>> btw, can I use the same Semaphore for more than one thread? <<

Yes. There would be little point in using a semaphore with a single thread.

CreateSemaphore() again? <<

I'm sorry I had to post about this again, it's just no one looked at the older posts anymore.

ReleaseSemaphore increases the count of a semaphore

Can you please explain alittle more about the count.


Also, do I really need the CreateSemaphore(), can't I only use the OpenSemaphore()?