Re: Thread termination & Mutex bug?

[David Sugar]

In the case of terminate, it was originally meant to be internal, but then we 
did add it to the destructor inline for convenience to remove duplicate code.  
So yes, it probably should become public.

On Tuesday 01 April 2003 06:35 am, NTR wrote:
> Hi,
>
> I have been working with CommonC++ 1.9.1 on Win2000 using the Thread,
> Mutex, Semaphore classes in a multi-threaded and I'm having problems with
> terminating threads from "main(...)" as this cannot call "Terminate()" as
> it is protected. What is the reason for this? Couldn't it be public
> instead? Could I just derive my own thread class and make a public
> "MyTerminate" method which calls "this->Terminate()"?
>
> Anyway, I assume there is a good reason for this so ... how can I terminate
> a thread from the main method? I have noticed the Thread(bool), which is
> supposed to construct a context for the main thread. However, I have no
> idea how to use this ... if anybody has an example it would be highly
> appreciated.
>
> In addition, I'm experiencing problems with Mutex and Semaphore not being
> thread safe in a producer/consumer scenario. Is this a known bug in 1.9.1?
>
> My scenario is something like:
> main()
> {
>    ProducerConsumerBuffer buf;
>    ProducerThread prod(buf);//Puts data in buf ... overwrites data in buf
>    ConsumerThread cons(buf);//Waits on semaphore for data in buf
>    prod.Start();
>    cons.Start();
>
>    ccxx_sleep(100000);//In my case I process user input until ESC has been
> pressed
>
>    //Due to various reasons I cannot simply let threads
>    //delete themselves when the main thread stops but have
>    //to stop the threads first
>    prod.Terminate();//WRONG
>    cons.Terminate();//WRONG
> }
>
> Regards,
> Niels
>
> PS: Is the new commoncpp2 1.0.x endiansafe for TCP transmission from a
> Win32 to an Irix 6.5 SGI computer? The reason I'm using 1.9.1 is that some
> other people have modified this version to be endiansafe for TCP
> transmission. I think they submitted a bug report...
> PPS: I have previously downloaded commoncpp2 1.0.8, but haven't had any
> luck compiling it (without XML) on Win2000 is this still a problem?
>
>
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