GNU bug report logs - #75056
31.0.50; tty-child-frames with server / multiple clients possible hangs

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From: martin rudalics <rudalics <at> gmx.at>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: gerd.moellmann <at> gmail.com, lenbok <at> gmail.com, 75056 <at> debbugs.gnu.org
Subject: bug#75056: 31.0.50; tty-child-frames with server / multiple clients possible hangs
Date: Sun, 26 Jan 2025 12:04:56 +0100

>> I still wonder what happened to the "when one frame completely obscures
>> another" visibility state issue.  Has that vanished?
>
> No, we still ignore that on TTYs, for non-child frames.  See my other
> message.

Are you sure?  frame.h now has

  /* Nonzero if the frame is currently displayed; we check
     it to see if we should bother updating the frame's contents. */
  unsigned visible : 1;

where it formerly had

  /* Nonzero if the frame is currently displayed; we check
     it to see if we should bother updating the frame's contents.

     On ttys and on Windows NT/9X, to avoid wasting effort updating
     visible frames that are actually completely obscured by other
     windows on the display, we bend the meaning of visible slightly:
     if equal to 2, then the frame is obscured - we still consider
     it to be "visible" as seen from lisp, but we don't bother
     updating it.  */
  unsigned visible : 2;

martin

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