[Lazarus] Using semaphores to limit thread access

[Michael Schnell]

On 07/20/2015 10:42 AM, kapibara wrote:
> I'm afraid that if a TCriticalSection is used, all threads except one 
> is blocked.
No. Only those that try to acquire the CriticalSection while they are 
owned by another thread.

Critical section is just a binary (non counting) Semaphore). I never had 
a problem when using them,

Of course counting semaphores and priority control for the waiting 
threads in some cases is needed.

-Michael
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