Re: [Cppcms-users] CppCMS and QT

[Artyom <art...@ya...>]

> 
> hi,
> 
> i'm writing a server application which runs cppcms as the server  engine, 
> but the cppcms applications are written using QT 4.6. This is a 
> requirement and can't be changed.
> 

What are you using Qt for?

> I managed to get everything working  except for the thread crossing 
> signal/slot mechanism from qt 

If you want to send a signal between CppCMS application and Qt part
you need to use this via either Posting events to each one's main
loop or use other trick.

Both CppCMS and Qt framework has their event loops.
To use each even loop you need to play by their rules.

If you want to have separate GUI and HTTP "GUI" you 
make them to cooperate by positing events, both Qt
and CppCMS has such tools to do this in thread safe way.


> and qt timers  since they all depend on 
> QThreads but the cppcms applications are generated  by the cppcms 
> application_pool and therefore are (i suppose) more booster  threads than 
> qt threads.

Threads are threads... and has nothing to do with Qt or CppCMS - all
pthreads under the hood.

So if you'll describe requirements in more clear way
or show what is the exact problem you have I probably can help
you but otherwise I don't understand what you need.

> 
> My qeustion is: is it possible to factor the  cppcms applications in a 
> way that they are  QThreads?
> 

CppCMS applications are not threads, they just objects that created
and cached and they called from CppCMS's thread pool upon request
(of course if you talking about synchronous model).

Asynchonous CppCMS applications are object that interact
via main event loop of CppCMS and called upon HTTP requests.

> Thanks,
> 
> Frank

Artyom