Re: Application runs slowly, crashes when wiggling the mouse quickly

[Andreas Stricker <andreas stricker fela ch>]

blythe2 tcnj edu wrote:
> I just thought of something else.  I'm using asynchronous IO, which means
> that data coming into my serial port (caught via a kernel signal) can
> interrupt the gui and call some other code, which in turn tells the GUI to
> update various parts of it.  Is it possible that I'm interrupting the GUI
> from doing something important, and when I try to make changes I'm
> breaking things?  If so, how would I avoid this?

Do you mean the POSIX 1003.1 asynchronous IO calls? They rely on signal
handler callbacks.
And here it is: you can't call gtk-Functions from unix signal handlers!

For future reference see:
http://mail.gnome.org/archives/gtk-app-devel-list/1999-September/msg00077.html
http://rapidmax.homelinux.net/src/gunixsignal/
http://wwwtcs.inf.tu-dresden.de/~Tews/Gtk/a2955.html

Cheers, Andy