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(handle_fontified_prop): Do nothing if memory full.

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(format_mode_line_unwind_data): New arg SAVE_PROPTRANS
controls whether to save and restore mode_line_proptrans_alist.
Callers changed.
(unwind_format_mode_line): Work with that feature.
(redisplay_internal): Don't call prepare_menu_bars if memory full.
(move_elt_to_front): New function.
(display_mode_element): Use move_elt_to_front.
Don't bother munging text props on a null string.
Delete obsolete elts from mode_line_proptrans_alist.
(decode_mode_spec): Test Vmemory_full, not spare_memory.
This commit is contained in:
Richard M. Stallman 2005-10-29 19:44:25 +00:00
parent eb3fe1745c
commit f5b8d5f263
2 changed files with 101 additions and 12 deletions
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38
src/ChangeLog
View file

@ -1,3 +1,41 @@
2005-10-29 Richard M. Stallman <rms@gnu.org>
* xdisp.c (handle_fontified_prop): Do nothing if memory full.
(format_mode_line_unwind_data): New arg SAVE_PROPTRANS
controls whether to save and restore mode_line_proptrans_alist.
Callers changed.
(unwind_format_mode_line): Work with that feature.
(redisplay_internal): Don't call prepare_menu_bars if memory full.
(move_elt_to_front): New function.
(display_mode_element): Use move_elt_to_front.
Don't bother munging text props on a null string.
Delete obsolete elts from mode_line_proptrans_alist.
(decode_mode_spec): Test Vmemory_full, not spare_memory.
* lisp.h (memory_full_cons_threshold): Declared.
(internal_lisp_condition_case): Declared.
* alloc.c (syms_of_alloc) <memory-full>: Doc fix.
(Fmemory_full_p): Function deleted.
(syms_of_alloc): Don't defsubr it.
(memory_full_cons_threshold): New variable.
(spare_memory): Now a vector of 7 elts.
(buffer_memory_full): Don't set Vmemory_full here.
(xfree): Don't try to refill here.
(emacs_blocked_free): Record BYTES_USED in local var.
(memory_full): Now free all the slots in spare_memory.
(refill_memory_reserve): Allocate each slot in spare_memory.
(init_alloc_once): Call refill_memory_reserve.
* keyboard.c (command_loop_1): Don't set Vmemory_full here.
* eval.c (internal_lisp_condition_case): New function.
(Fcondition_case): Use internal_lisp_condition_case.
(Feval): Test Vmemory_full and memory_full_cons_threshold.
(Ffuncall): Likewise.
* bytecode.c (Fbyte_code): Use internal_lisp_condition_case.
2005-10-29 Stefan Monnier <monnier@iro.umontreal.ca>
* syntax.c (Fparse_partial_sexp): Fix docstring.

75
src/xdisp.c
View file

@ -3176,6 +3176,9 @@ handle_fontified_prop (it)
Lisp_Object prop, pos;
enum prop_handled handled = HANDLED_NORMALLY;
if (!NILP (Vmemory_full))
return handled;
/* Get the value of the `fontified' property at IT's current buffer
position. (The `fontified' property doesn't have a special
meaning in strings.) If the value is nil, call functions from
@ -8616,7 +8619,7 @@ static Lisp_Object mode_line_string_face_prop;
static Lisp_Object Vmode_line_unwind_vector;
static Lisp_Object
format_mode_line_unwind_data (obuf)
format_mode_line_unwind_data (obuf, save_proptrans)
struct buffer *obuf;
{
Lisp_Object vector;
@ -8632,7 +8635,7 @@ format_mode_line_unwind_data (obuf)
AREF (vector, 0) = make_number (mode_line_target);
AREF (vector, 1) = make_number (MODE_LINE_NOPROP_LEN (0));
AREF (vector, 2) = mode_line_string_list;
AREF (vector, 3) = mode_line_proptrans_alist;
AREF (vector, 3) = (save_proptrans ? mode_line_proptrans_alist : Qt);
AREF (vector, 4) = mode_line_string_face;
AREF (vector, 5) = mode_line_string_face_prop;
@ -8651,7 +8654,8 @@ unwind_format_mode_line (vector)
mode_line_target = XINT (AREF (vector, 0));
mode_line_noprop_ptr = mode_line_noprop_buf + XINT (AREF (vector, 1));
mode_line_string_list = AREF (vector, 2);
mode_line_proptrans_alist = AREF (vector, 3);
if (! EQ (AREF (vector, 3), Qt))
mode_line_proptrans_alist = AREF (vector, 3);
mode_line_string_face = AREF (vector, 4);
mode_line_string_face_prop = AREF (vector, 5);
@ -8774,7 +8778,7 @@ x_consider_frame_title (frame)
mode_line_target so that display_mode_element will output into
mode_line_noprop_buf; then display the title. */
record_unwind_protect (unwind_format_mode_line,
format_mode_line_unwind_data (current_buffer));
format_mode_line_unwind_data (current_buffer, 0));
set_buffer_internal_1 (XBUFFER (XWINDOW (f->selected_window)->buffer));
fmt = FRAME_ICONIFIED_P (f) ? Vicon_title_format : Vframe_title_format;
@ -10571,7 +10575,8 @@ redisplay_internal (preserve_echo_area)
clear_garbaged_frames ();
/* Build menubar and tool-bar items. */
prepare_menu_bars ();
if (NILP (Vmemory_full))
prepare_menu_bars ();
if (windows_or_buffers_changed)
update_mode_lines++;
@ -16159,7 +16164,7 @@ display_mode_line (w, face_id, format)
it.base_face_id = it.face_id = DEFAULT_FACE_ID;
record_unwind_protect (unwind_format_mode_line,
format_mode_line_unwind_data (NULL));
format_mode_line_unwind_data (NULL, 0));
mode_line_target = MODE_LINE_DISPLAY;
@ -16194,6 +16199,44 @@ display_mode_line (w, face_id, format)
return it.glyph_row->height;
}
/* Move element ELT in LIST to the front of LIST.
Return the updated list. */
static Lisp_Object
move_elt_to_front (elt, list)
Lisp_Object elt, list;
{
register Lisp_Object tail, prev;
register Lisp_Object tem;
tail = list;
prev = Qnil;
while (CONSP (tail))
{
tem = XCAR (tail);
if (EQ (elt, tem))
{
/* Splice out the link TAIL. */
if (NILP (prev))
list = XCDR (tail);
else
Fsetcdr (prev, XCDR (tail));
/* Now make it the first. */
Fsetcdr (tail, list);
return tail;
}
else
prev = tail;
tail = XCDR (tail);
QUIT;
}
/* Not found--return unchanged LIST. */
return list;
}
/* Contribute ELT to the mode line for window IT->w. How it
translates into text depends on its data type.
@ -16243,7 +16286,8 @@ display_mode_element (it, depth, field_width, precision, elt, props, risky)
unsigned char c;
int offset = 0;
if (!NILP (props) || risky)
if (SCHARS (elt) > 0
&& (!NILP (props) || risky))
{
Lisp_Object oprops, aelt;
oprops = Ftext_properties_at (make_number (0), elt);
@ -16274,14 +16318,22 @@ display_mode_element (it, depth, field_width, precision, elt, props, risky)
aelt = Fassoc (elt, mode_line_proptrans_alist);
if (! NILP (aelt) && !NILP (Fequal (props, XCDR (aelt))))
{
mode_line_proptrans_alist
= Fcons (aelt, Fdelq (aelt, mode_line_proptrans_alist));
/* AELT is what we want. Move it to the front
without consing. */
elt = XCAR (aelt);
mode_line_proptrans_alist
= move_elt_to_front (aelt, mode_line_proptrans_alist);
}
else
{
Lisp_Object tem;
/* If AELT has the wrong props, it is useless.
so get rid of it. */
if (! NILP (aelt))
mode_line_proptrans_alist
= Fdelq (aelt, mode_line_proptrans_alist);
elt = Fcopy_sequence (elt);
Fset_text_properties (make_number (0), Flength (elt),
props, elt);
@ -16807,7 +16859,7 @@ are the selected window and the window's buffer). */)
old_buffer = current_buffer;
record_unwind_protect (unwind_format_mode_line,
format_mode_line_unwind_data (old_buffer));
format_mode_line_unwind_data (old_buffer, 1));
if (old_buffer)
set_buffer_internal_1 (XBUFFER (buffer));
@ -17195,8 +17247,7 @@ decode_mode_spec (w, c, field_width, precision, multibyte)
case 'e':
#ifndef SYSTEM_MALLOC
{
extern char *spare_memory;
if (spare_memory)
if (NILP (Vmemory_full))
return "";
else
return "!MEM FULL! ";