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bug#45256: Viewing images over network using TRAMP (errors and unexpecte
From: |
Michael Albinus |
Subject: |
bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts) |
Date: |
Thu, 17 Dec 2020 09:44:01 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Juri Linkov <juri@linkov.net> writes:
Hi Juri,
>> From my pov, image-fit-to-window must be hardened in order to avoid this
>> reentrant call. Maybe an internal lock at entry, which is honored by
>> every next call until the lock is removed.
>
> The simplest solution is just to increase the number of seconds
> in the user option 'image-auto-resize-on-window-resize'
> proportionally to network latency.
That's a global variable, right? So you would also delay resizing of
images located locally.
> Locking could be implemented as well. How would be better to do this?
> Maybe by using a buffer-local variable?
Yes. Something like
--8<---------------cut here---------------start------------->8---
(defvar image-fit-to-window-lock nil
"Lock for `image-fit-to-window' timer."
(defun image-fit-to-window (window)
"..."
(unless image-fit-to-window-lock
(unwind-protect
(progn
(setq-local image-fit-to-window-lock t)
...)
(setq image-fit-to-window-lock nil))))
--8<---------------cut here---------------end--------------->8---
There's also another thread. When image-fit-to-window is called from
Emacs the first time, there could also be a running Tramp operation,
which would be disturbed. See the recent discussion about "Tramp and
timers" in the emacs-devel ML. Tramp would detect this situation, and
fire the (new) error remote-file-error. This must also be handled, like
--8<---------------cut here---------------start------------->8---
(defun image-fit-to-window (window)
"..."
(ignore-error 'remote-file-error
...))
--8<---------------cut here---------------end--------------->8---
Best regards, Michael.
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Mikhail P, 2020/12/15
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Michael Albinus, 2020/12/16
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Juri Linkov, 2020/12/16
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts),
Michael Albinus <=
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Juri Linkov, 2020/12/17
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Michael Albinus, 2020/12/18
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Juri Linkov, 2020/12/18
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Michael Albinus, 2020/12/18
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Juri Linkov, 2020/12/19
- bug#45256: Viewing images over network using TRAMP (errors and unexpected prompts), Mikhail Pomaznoy, 2020/12/22