Home/ Questions/Q 786479
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T21:02:53+00:00

I’m writing a C++ application. I realized that one of my worker threads may

  • 0

I’m writing a C++ application. I realized that one of my worker threads may terminate unexpectedly. The (VS 2005) debug log says:

The thread ‘Win32 Thread’ (0x5d98) has
exited with code -858993460
(0xcccccccc).

I surrounded all the worker thread code with a try/catch block. So, if the reason was an exception, I would catch it. But I can’t:

try{
   ...
   Connection* conn = connectionPool->getConnection(); // unexpected exit occurs here
   ...
} catch(exception& e) {
   ...
}

I have ten threads running concurrently, and only one of them gets crashed after some time, while the others continue running (and getting new [OCCI] connections).

Is there an exception type that is not caught by “exception”? Or what do I not know about threads/exceptions?

Thanks.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I found an important clue. When you close a handle with CloseHandle function, the thread exits with code 0xCCCCCCCC. With the help of this clue, I realized that in a very rare situation, I close my thread’s handle even though the thread’s working. Why does it exit exactly while getting connection? That also has an explanation, but it’s related to the structure of the code, which may be difficult to explain here.

    Thank you all, who brainstormed with me on the exceptions issue :$.

    • 0