Re: maximing/resizing multiple x11: change of palette

[Ethan M. <merritt@u.washington.edu>]

On Monday 27 September 2004 03:27 pm, Daniel J Sebald wrote:
> 
> Ethan Merritt wrote:
> 
> >I'm a bit worried about races if you mix scheme (a) with the replots
> >done under scheme (b).  
> >
> I thought I saw that the core of gnuplot of x11 looks at events and then 
> handles them, handles drawing commands, etc.  So, I think the scenarios 
> you mention above should all complete before a next operation can take 
> place.

I don't think so.  The main loop does a select() at line 817 of gplt_x11.c 
that mixes input from the pipe (line 849) and from X events (line 844).
I see nothing to stop an X event from slipping in between two successive
reads from the input pipe.

> That is, gnuplot_x11 is the one actually closing 
> plots and X windows, somewhere in its event cycle.  The outside error 
> events are just requesting that gnuplot_x11 close windows, etc.

Not be relevant to the current point, but that's not true either.
Yes, if you type "q" or "ctrl-q" then it's gnuplot_x11 that actually closes
the plot window.  But if you select XKill or some window manager function
to close the plot window then I think it's already gone by the time gnuplot_x11
finds out about it.


-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center
Mailstop 357742
University of Washington, Seattle, WA 98195