Re: vim (in terminal) fails to redraw after window resizing

Taylor Hedberg wrote:

> (Adding vim_dev to recipients...)
>
> Bram Moolenaar, Thu 2011-10-06 @ 23:21:29+0200:
> >
> > Bill Sun wrote:
> >
> > > I updated my Vim (from 1-250 to 1-333), after that update, Vim fails to
> > > redraw the window (if the window is enlarged, Vim won't fill the gap,
> > > which was filled by Vim automatically in the older version) instantly
> > > when I resize the window. So I have to put my cursor on Vim (under
> > > xterm) and press some (maybe any) key to make it redraw itself.
> > >
> > > Err... It's a little bit hard to explain that problem. I made an ogv to
> > > illustrate that (Sorry, I cannot access to most video store websites, so
> > > I have to attach that file).
> > >
> > > I'm using Arch Linux (x86_64), awesome window manager.
> > > Vim version: (See attachment below)
> > > System information:
> > > Linux 3.0.6
> > > X server 1.10.4
> > > xterm 275
> > > awesome 3.4.10
> >
> > I have noticed this too. Haven't been able to guess what causes it. If
> > someone can find out if a specific patch has introduced this it would
> > help a lot. It might also depend on the xterm version (although I don't
> > think I updated it recently).
>
> Attached is a patch which fixes the issue.
>
> Previously, if the terminal window was resized while Vim was waiting for
> a character to be input (in the midst of a select(2) system call), the
> resulting SIGWINCH would interrupt the syscall and set do_resize to
> TRUE, as it should. However, since patch 295, the select call would then
> immediately be retried, without checking do_resize to see if the window
> needed to be redrawn.
>
> With this patch, Vim will call handle_resize to redraw the window before
> retrying the select call if a SIGWINCH was the reason why the select was
> interrupted in the first place.

Thanks for the patch! I'll check it out soon.

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/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
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