[bt-devel] thread problems

[Joachim Ansorg]

Hi!
> > No KDE application with kdelibs linked to libqt.so can use the threaded
> > libqt-mt.so because this is the same library.
> > libqt and libqt-mt would be loaded at the same time.
>
> So how to do it? No way? That would seem rather senseless to me...

AFIK no KDE applicatio with non-threaded kdelibs can use QT threads.
But Qt-only apps can use the threads.

> > I tracked the search result bug (the 10 items after the first search)
> > down to RawText::Search (the part at the end which checks if the result
> > is in the scope).
> > I changed it a little bit, and as a side effect  searching indexed
> > modules is now much faster for large result sets.
>
> I admire you. ;)  Great!

To be honest: It was a side effect of the bug fix.
But it's great!

> > > ->2 possible solutions:
> > >  #1 give an own module object to each presenter, search object,
> > >     print object etc.; Problem: possibly huge memory usage
> > >     Advantages: sword modules dynamically created, will
> > >     only use much memory if you open many modules;
> > >     Enables (partly) have sword acess dynamic module
> > >     sources like CD-Rom, which are not always available
> > >  #2 have sword checking for thread acess, maybe even thread
> >
> > IMHO no so good, because of the huge memory requirements.
> >
> > >     sword itself; problem: possibly api change, requires much work
> > >     and knowledge
> > >     Advantages: sword will be better equipped for the future;
> > >     makes threading in client apps easier; less memory usage (Handheld)
> > >     (dynamic module checking could be implemented also)
> >
> > No task for the BibleTime team.
> >
> > At te moment it works again.
>
> But BT still is not thread-safe, is it? What if I search a module and
> meanwhile modify a presenter showing this module? Is this solution now
> acceptable?

No, it's no thread safe.
If you modify and search a module at the same time the search will stop.
The solution does at least fix the nasty bug.

> Martin

Joachim
-- 
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