[haiku-3rdparty-dev] Re: Target of BMessage from BMessageQueue?
- From: Stephan Assmus <superstippi@xxxxxx>
- To: haiku-3rdparty-dev@xxxxxxxxxxxxx
- Date: Sun, 14 Feb 2010 10:03:02 +0100
On 2010-02-14 at 06:11:07 [+0100], Rene Gollent <anevilyak@xxxxxxxxx> wrote:
> On Sat, Feb 13, 2010 at 5:32 PM, Stephan Assmus <superstippi@xxxxxx> wrote:
> >> This is suppose to fast-forward to the last message of a kind from within
> >> WebProcess::MessageReceived(). WebProcess is a BHandler attached to the
> >> BApplication. If there are more than one web pages open, there will be
> >> one
> >> WebProcess per page. And you can probably already see the problem. I am
> >> stealing messages from the other processes, and worst case, I end up
> >> processing a BMessage intended for another WebProcess. Is there any way
> >> to
> >> detect the intended BHandler target of a BMessage when peaking into the
> >> queue like that?
> >
>
> The problem I see here is that at the point where the message is just
> in the message queue, you can't guarantee to reliably know its target,
> since both BMessageFilters and BLooper::DispatchMessage() can redirect
> the message somewhere else entirely. Any thoughts on how to work
> around that?
Yeah, I solved the problem by tagging the messages when I send them. It would
probably be too much overhead anyway, to find the target using the method
that BLooper uses.
Best regards,
-Stephan
Other related posts:
