399
Subj : Re: threading problem in dll??? Help needed badly.
To   : comp.programming.threads
From : Paul Pluzhnikov
Date : Thu Jul 07 2005 04:47 pm

chuayongquan@hotmail.com writes:

> UINT abc::abcfunction(LPVOID pParam)
> {
>
>  abc* pCM = (abc*)pParam;
>
>  ::CoInitialize(NULL);
>
>  while (1) {
>   TryEnterCriticalSection(CS);   [1]

What happens if the CS is already owned by another thread at point [1] above? 
The TryEnterCriticalSection() will fail, but you proceed as if
it didn't. Subsequent calls to LeaveCriticalSection() will cause
all manner of corruption.

>   // my thread code here
>   if (stopthread){
>    LeaveCriticalSection(CS);
>    break;
>   }
>   LeaveCriticalSection(CS);
>  }
>  ::CoUninitialize();
>  return 0;
> }
>
> //end thread function

Cheers,
-- 
In order to understand recursion you must first understand recursion.
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