[openbeos] Re: input_server filter issue

Hi Michael,

I have a idea which can happen to be your problem. Let me explain :

Your BMessageFilter is installed in your SSISFilter::SSISFilter() with 
AddFilter().
But SSISFilter *fltr is still NULL, not inited,  when timeUpFunc may be called.

One thing you can try :

SSISFilter *fltr = NULL;

if (fltr)
   fltr->CheckTime();

i also have a doubt about having be_app and be_app_messenger available in a 
loaded addon, but why not.

Hope it helps,
Jerome

Selon Michael Phipps <mphipps1@xxxxxxxxxxxxxxxx>:

> I have been working on an input server filter for ScreenSaver. The general 
> gist of it is that we add a BMessageRunner to the input_server. It's job is 
> to post a message to the Input Server every N seconds (where N is what you 
> set in the screen saver preferences app). A BMessageFilter catches that 
> message and calls a function checking to see if keys were hit and, if not, to
> 
> invoke screensaver. 
> 
> Now, I am sure that I have done something dumb... But my problem is that when
> 
> I create a BMessageFilter and call be_app->AddFilter(filter); 
> At that point, the Input Server crashes. So, obviously, I can't do a whole 
> lot of debugging. 
> 
> I can verify that be_app seems to be valid (and it should be). I can't think
> 
> of any reason that this should fail. 
> 
> Here is the relevant code:
> 
> SSISFilter::SSISFilter() : enabled(false) {
>     pref.LoadSettings();
>     blank=pref.GetBlankCorner();
>     keep=pref.GetNeverBlankCorner();
>     timeMsg=new BMessage(timeUp);
>     runner=new BMessageRunner(be_app_messenger, timeMsg, pref.BlankTime() 
> *1000000,-1);
>     filter=new BMessageFilter(timeUp,timeUpFunc);
>     be_app->AddFilter(filter);
> }  
> 
> I am open to thoughts and ideas...
> 
>

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