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Improve documentation of desktop restoring

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* doc/emacs/misc.texi (Saving Emacs Sessions): Document
'desktop-auto-save-timeout', 'desktop-load-locked-desktop', and
how to restore desktop in daemon mode.  (Bug#30421)
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Eli Zaretskii 2018-02-11 19:59:00 +02:00
parent 10637af91a
commit f8a493c800
1 changed files with 30 additions and 1 deletions
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@ -2485,7 +2485,7 @@ since it bypasses the init file, where @code{desktop-save-mode} is
usually turned on.
@vindex desktop-restore-eager
By default, all the buffers in the desktop are restored at one go.
By default, all the buffers in the desktop are restored in one go.
However, this may be slow if there are a lot of buffers in the
desktop. You can specify the maximum number of buffers to restore
immediately with the variable @code{desktop-restore-eager}; the
@ -2504,6 +2504,35 @@ expression matching the names of buffers not to kill.
If you want to save minibuffer history from one session to
another, use the @code{savehist} library.
@vindex desktop-auto-save-timeout
While Emacs runs with @code{desktop-save-mode} turned on, it by
default auto-saves the desktop whenever any of it changes. The
variable @code{desktop-auto-save-timeout} determines how frequently
Emacs checks for modifications to your desktop.
@vindex desktop-load-locked-desktop
The file in which Emacs saves the desktop is locked while the
session runs, to avoid inadvertently overwriting it from another Emacs
session. That lock is normally removed when Emacs exits, but if Emacs
or your system crashes, the lock stays, and when you restart Emacs, it
will by default ask you whether to use the locked desktop file. You
can avoid the question by customizing the variable
@code{desktop-load-locked-desktop} to either @code{nil}, which means
never load the desktop in this case, or @code{t}, which means load the
desktop without asking.
@cindex desktop restore in daemon mode
When Emacs starts in daemon mode, it cannot ask you any questions,
so if it finds the desktop file locked, it will not load it, unless
@code{desktop-load-locked-desktop} is @code{t}. Note that restoring
the desktop in daemon mode is somewhat problematic for other reasons:
e.g., the daemon cannot use GUI features, so parameters such as frame
position, size, and decorations cannot be restored. For that reason,
you may wish to delay restoring the desktop in daemon mode until the
first client connects, by calling @code{desktop-read} in a hook
function that you add to @code{after-make-frame-functions}
(@pxref{Creating Frames,,, elisp, The Emacs Lisp Reference Manual}).
@node Recursive Edit
@section Recursive Editing Levels
@cindex recursive editing level