[Qt-interest] Is QAbstractItemModel thread safe?

[Arnold Krille]

On Monday 29 June 2009 22:03:25 Eric Clark wrote:
> I was just wondering if it is safe to call functions in the
> QAbstractItemModel class from a thread that is different than the main GUI
> thread?

The real question is whether you can call functions from QAbstractItemModel 
from any thread != QAbstractItemModel::thread() :-)

And at least from expierience I can say that it is. I have several models in 
their own thread and access each of them with two views (naturally in the gui-
thread) and this runs well for hours (in the range of 4-7 days:).

The docs say that it is at least re-entreant. And I think the communication 
with the views is mostly done with signals/slots and these are sent as events 
when crossing threads. BTW: You have to do Q_DECLARE_METATYPE( QModelIndex 
)...

Have fun,

Arnold
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