[haiku-appserver] Re: BScreen support

  • From: Adi Oanca <adioanca@xxxxxxxxxxxxxx>
  • To: haiku-appserver@xxxxxxxxxxxxx
  • Date: Wed, 04 May 2005 15:30:28 +0300

Stefano Ceccherini wrote:
> BTW, I have a question for you:
> With my latest changes it's now possible to change the video mode with 
> BScreen::SetMode()
  from the client side. Though, when changing the video mode, I get a crash 
from RootLayer.
  That's because, I guess, I need to lock something before setting the mode. Am 
I right ?
  I couldn't find any hint in the code.

        All commands that affect the visible regions must be executed from 
thread context. When rebuilding regions, again, that must be done from 
RootLayer's thread
context. The solution: redirect this message to RT thread and add a handler for 
        Locking RootLayer is not a solution, that must be kept to a minimum (2 
situations ATM).
        (see GoInvalidate() as an example)


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