Re: [Tnfox-discussion] TnFox application in DLL and threads

[Niall D. <s_s...@ne...>]

On 15 Sep 2008 at 15:44, Ck wrote:

> > If your main thread is a MFC thread, then you'll need to pump the FOX 
> > message dispatch system manually from within the MFC message loop.
> >   
> How to do this?
> Can you give an example?

Look at the source for TnFXApp::run() and FXApp::run(). Basically it 
runs via getNextEvent() and dispatchEvent().

> I think I need to use FXObject...
> 
> struct Data;
> class Receiver: public FXObject
> {
> public:
>     ...
>     /** For sync calls. */
>     void syncCall(Data *data);
> 
>     /** For async calls. */
>     long  tryHandle (FXObject *sender, FXSelector sel, void *ptr);
> }
> 
> For sync call from worker thread I can do:
>     m_receiver->syncCall(m_data);
> 
> For async:
>     m_receiver->getEventLoop()->postAsyncMessage(bla bla);
> 
> How to pump Receiver message system from MFC message lopp?

See above.

If you wish to invoke some synchronous call which isn't threadsafe, 
you should set up a message handler which receives async messages 
from other threads and executes the required call. I personally would 
have it pass a BoundFunctor such that any thread can invoke any 
function in any other thread arbitrarily. I have an implementation of 
this actually in Tn but not TnFOX - it wouldn't be hard to port over 
though. I might add that to the todo list actually.

> PS Is this ok, what I write to you personally instead of to maillist?

I'd prefer the mailing list so others can search it in the future.

HTH,
Niall