[fxruby-users] Updating GUI while doing slow IO-operations
kennetha at stud.ntnu.no
Sat Sep 22 07:42:26 EDT 2007
Thanks for your answers guys,
I have not yet tried your suggestions, but I will.
I'll let you know as soon as I do.
On 9/21/07, Lyle Johnson <lyle at lylejohnson.name> wrote:
> On Sep 20, 2007, at 1:59 AM, Kenneth Juul wrote:
> > I have made a rather large program in Ruby for use in Windows. The
> > user interface is made with fxruby, of course. The program is
> > "talking" to a small embedded computer over both serial and ethernet
> > interfaces. Some of this communication is taking a while, several
> > minutes actually, and this is when my problem occurs:
> > During slow, time consuming operations, the GUI freezes / hangs.
> > Sometimes it just turn "windows-white" and stays like this until the
> > IO is done, other times it just freezes the last window until IO is
> > done.
> > I have done some vague attempts on starting of the IO withing separate
> > threads without any improvement. I also have tried some calls to
> > flush(), forceRefresh(), refresh(), update() and so on, without any
> > improvement.
> > Enlighten me please!
> The problem with using Ruby threads for the I/O is that they'll block
> the whole application. You might be able to use the FXApp#addInput
> API (see the input.rb example program), although I've never tried to
> use it with network I/O.
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