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Code Issues Releases Activity

Document new create-lockfiles option

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This commit is contained in:
Glenn Morris 2012-05-09 20:58:16 -04:00
parent 836d29b370
commit dc0f75c82c
5 changed files with 23 additions and 1 deletions
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4
doc/emacs/ChangeLog
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@ -1,3 +1,7 @@
2012-05-10 Glenn Morris <rgm@gnu.org>
* files.texi (Interlocking): Mention create-lockfiles option.
2012-05-09 Chong Yidong <cyd@gnu.org>
* frames.texi (Mouse References, Mouse Commands): Fix index

5
doc/emacs/files.texi
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@ -739,6 +739,11 @@ directory.) Emacs removes the lock when you save the changes. The
idea is that the file is locked whenever an Emacs buffer visiting it
has unsaved changes.
@vindex create-lockfiles
You can prevent the creation of lock files by setting the variable
@code{create-lockfiles} to @code{nil}. @strong{Caution:} by
doing so you will lose the benefits that this feature provides.
@cindex collision
If you begin to modify the buffer while the visited file is locked by
someone else, this constitutes a @dfn{collision}. When Emacs detects a

4
doc/lispref/ChangeLog
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@ -1,3 +1,7 @@
2012-05-10 Glenn Morris <rgm@gnu.org>
* files.texi (File Locks): Mention create-lockfiles option.
2012-05-09 Glenn Morris <rgm@gnu.org>
* vol1.texi, vol2.texi: Remove files.

7
doc/lispref/files.texi
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@ -726,7 +726,12 @@ system does not support locking.
File locking is not supported on some systems. On systems that do not
support it, the functions @code{lock-buffer}, @code{unlock-buffer} and
@code{file-locked-p} do nothing and return @code{nil}.
@code{file-locked-p} do nothing and return @code{nil}. It is also
possible to disable locking, by setting the variable @code{create-lockfiles}.
@defopt create-lockfiles
If this variable is @code{nil}, Emacs does not lock files.
@end defopt
@defun ask-user-about-lock file other-user
This function is called when the user tries to modify @var{file}, but it

4
etc/NEWS
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@ -65,6 +65,10 @@ ImageMagick to view images, set
frames, if emacsclient is only told to open a new frame without
specifying any file to visit or expression to evaluate.
+++
** You can prevent the creation of lock files by setting `create-lockfiles'
to nil. Use with caution, and only if you really need to.
** Using "unibyte: t" in Lisp source files is obsolete.
Use "coding: raw-text" instead.