Re: Synchronized call

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#4773

From: Alistair
Date: Wed, 30 Nov 2005 23:33

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Bogdan wrote:
> Hello,
> 
> How can I synchronize a function call from a thread using API functions.
> I need to do what Synchronize(Function) from TThread does, but
> with Win 32 API.
> 
> Thanks
> Bogdan 
> 
>

// SECTION OBJECT
CRITICAL_SECTION _section;

// CREATES THE SECTION
// ONLY DO THIS ONCE BEFORE ALL THE THREADS GO ACTIVE
InitializeCriticalSection(&_section);

// FUNCTION USED BY MANY THREADS
void DoSomethingThatNeedsSync()
{
  // THIS WILL WAIT!
  EnterCriticalSection(&CriticalSection);
// OR - THIS WILL NOT WAIT
//TryEnterCriticalSection(CriticalSection);

  // MANY THREADS DO THIS!

  LeaveCriticalSection(&CriticalSection);
}

// DELETE CRITICAL SECTION
// ONLY DO THIS AFTER ALL THE THREADS ARE FINISHED
DeleteCriticalSection(&CriticalSection);


Cheers,
Alistair

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