1
0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-03 08:30:09 +00:00

* fileio.c (Fwrite_region, Fdo_auto_save): Handle save_length = -2.

(Fset_buffer_auto_saved): Handle save_length = -2.

Comment changes in other files.
This commit is contained in:
Richard M. Stallman 2009-07-16 01:45:08 +00:00
parent 4e6b227dbe
commit 4be941e3d0
4 changed files with 27 additions and 8 deletions

View File

@ -1,3 +1,8 @@
2009-07-16 Richard Stallman <rms@gnu.org>
* fileio.c (Fwrite_region, Fdo_auto_save): Handle save_length = -2.
(Fset_buffer_auto_saved): Handle save_length = -2.
2009-07-16 Chong Yidong <cyd@stupidchicken.com>
* xterm.c (Qx_gtk_map_stock): New var.

View File

@ -5853,7 +5853,12 @@ Backing up is done before the first time the file is saved. */);
DEFVAR_PER_BUFFER ("buffer-saved-size", &current_buffer->save_length,
make_number (Lisp_Int),
doc: /* Length of current buffer when last read in, saved or auto-saved.
0 initially. */);
0 initially.
-1 means auto-saving turned off until next real save.
If you set this to -2, that means don't turn off auto-saving in this buffer
if its text size shrinks. If you use `buffer-swap-text' on a buffer,
you probably should set this to -2 in that buffer. */);
DEFVAR_PER_BUFFER ("selective-display", &current_buffer->selective_display,
Qnil,

View File

@ -584,6 +584,9 @@ struct buffer
/* This isn't really used by the C code, so could be deleted. */
Lisp_Object backed_up;
/* Length of file when last read or saved.
-1 means auto saving turned off because buffer shrank a lot.
-2 means don't turn off auto saving if buffer shrinks.
(That value is used with buffer-swap-text.)
This is not in the struct buffer_text
because it's not used in indirect buffers at all. */
Lisp_Object save_length;

View File

@ -4492,7 +4492,8 @@ This calls `write-region-annotate-functions' at the start, and
if (visiting)
{
SAVE_MODIFF = MODIFF;
XSETFASTINT (current_buffer->save_length, Z - BEG);
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->filename = visit_file;
}
UNGCPRO;
@ -4703,7 +4704,8 @@ This calls `write-region-annotate-functions' at the start, and
if (visiting)
{
SAVE_MODIFF = MODIFF;
XSETFASTINT (current_buffer->save_length, Z - BEG);
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->filename = visit_file;
update_mode_lines++;
}
@ -5307,7 +5309,7 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
&& BUF_SAVE_MODIFF (b) < BUF_MODIFF (b)
&& b->auto_save_modified < BUF_MODIFF (b)
/* -1 means we've turned off autosaving for a while--see below. */
&& XINT (b->save_length) >= 0
&& XINT (b->save_length) != -1
&& (do_handled_files
|| NILP (Ffind_file_name_handler (b->auto_save_file_name,
Qwrite_region))))
@ -5321,8 +5323,10 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
&& EMACS_SECS (before_time) - b->auto_save_failure_time < 1200)
continue;
if ((XFASTINT (b->save_length) * 10
> (BUF_Z (b) - BUF_BEG (b)) * 13)
if (XINT (b->save_length) != -2
/* -2 is a magic flag turning off this feature in a buffer. */
&& (XFASTINT (b->save_length) * 10
> (BUF_Z (b) - BUF_BEG (b)) * 13)
/* A short file is likely to change a large fraction;
spare the user annoying messages. */
&& XFASTINT (b->save_length) > 5000
@ -5347,7 +5351,8 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
internal_condition_case (auto_save_1, Qt, auto_save_error);
auto_saved++;
b->auto_save_modified = BUF_MODIFF (b);
XSETFASTINT (current_buffer->save_length, Z - BEG);
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
set_buffer_internal (old);
EMACS_GET_TIME (after_time);
@ -5392,7 +5397,8 @@ No auto-save file will be written until the buffer changes again. */)
()
{
current_buffer->auto_save_modified = MODIFF;
XSETFASTINT (current_buffer->save_length, Z - BEG);
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->auto_save_failure_time = -1;
return Qnil;
}