Although for decades ‘signal’ has been documented to not return,
a corner case in the Lisp debugger causes ‘signal’ to return.
Remove the corner case and adjust Emacs internals accordingly.
An alternative would be to document the corner case, but this
would complicate the Lisp API unnecessarily. (Bug#24047)
* src/eval.c (signal_or_quit): New function, with most of the
old contents of Fsignal.
(quit): New function, which uses signal_or_quit and which
might return. All keyboard-based callers of Fsignal (Qquit,
Qnil) changed to use this new function instead.
(Fsignal): Use signal_or_quit. Now _Noreturn. All callers
changed.
(xsignal): Move to lisp.h.
* src/lisp.h (xsignal): Now an inline function, as it's now
just an alias for Fsignal.
* src/conf_post.h (DebPrint) [!EMACSDEBUG]: Add empty do-while
loop to avoid compiler warnings about empty body of 'if'
statement.
* src/image.c [HAVE_NTGUI] (DefaultDepthOfScreen): Disable unused
macro.
(x_create_bitmap_from_data): Declare 'frame'.
(x_create_bitmap_from_file): Don't declare unused variable
'dpyinfo'.
* src/lisp.h (AUTO_STRING_WITH_LEN): Avoid initialization to
prevent "jump-misses-init" compiler warnings.
* src/w32fns.c (check_w32_winkey_state): Define and use only if
WINDOWSNT.
(Fx_show_tip): Declare 'f'.
(Fx_file_dialog): Declare 'filter_a' only if not NTGUI_UNICODE.
(w32_strerror): Use format specifier %d for sprintf argument of
type int.
(emacs_abort): Cast sprintf argument of type DWORD to unsigned
int, and use format specifier %x, for compatibility with Cygwin.
(unicode_append_menu) [NTGUI_UNICODE]:
* src/w32menu.c [NTGUI_UNICODE] (get_menu_item_info)
(set_menu_item_info, unicode_append_menu)
(unicode_message_box):
* src/menu.c [NTGUI_UNICODE] (unicode_append_menu): Define as
functions rather than macros to avoid "address will always
evaluate as true" compiler warnings.
* src/w32font.c (w32_to_x_charset): Use format specifier %d for
sprintf argument of type int.
* src/w32term.c (x_draw_glyphless_glyph_string_foreground): Cast
sprintf argument of type int to unsigned int to match %X format
specifier.
(w32_scroll_bar_handle_click):
(w32_horizontal_scroll_bar_handle_click): Declare 'f'.
* src/w32term.h (FRAME_DISPLAY_INFO): Explicitly discard unused
argument.
Work around Bug#22884 by rewording comments and strings to avoid ‘(’
at the start of a line unless it starts a function. This change
is a short-term hack; in the longer run we plan to fix cc-mode’s
performance for C files that have ‘(’ at the start of a line in a
comment or string.
* doc/lispref/frames.texi (Parameter Access): Mention pitfalls
when simultaneously specifying multiple parameters for
`modify-frame-parameters' that all may change the frame's size.
* src/w32fns.c (x_set_menu_bar_lines): Don't set
windows_or_buffers_changed here.
(my_create_tip_window, Fx_show_tip): Call AdjustWindowRect
with third argument false.
* src/w32menu.c (set_frame_menubar): Set
windows_or_buffers_changed here.
* src/w32term.c (x_set_window_size): Determine third argument of
AdjustWindowRect from whether the frame has a menu bar and not
from whether it wants one.
src/w32uniscribe.c (uniscribe_list, uniscribe_match): Use bool where
appropriate.
src/w32font.c (struct font_callback_data, w32font_list_internal)
(w32font_driver, w32font_match_internal): Use bool where appropriate.
src/w32menu.c (x_activate_menubar, set_frame_menubar)
(w32_dialog_show, initialize_frame_menubar, w32_menu_show)
(is_simple_dialog): Use bool where appropriate.
src/w32fns.c (w32_wnd_proc): Ignore MENUITEMINFO's dwItemData data
when FLAGS indicate the item is not highlighted, i.e. it's not our
help-echo string.
lisp.h (XPNTR): Move definition to after XTYPE, to avoid
compilation error in an unoptimized build when !USE_LSB_TAG.
src/w32heap.c (DUMPED_HEAP_SIZE): For 32-bit wide-int build, use the
same larger value as for the 64-bit build.
src/w32term.h (SCROLL_BAR_PACK): Cast the result to UINT_PTR to
avoid compiler warnings.
src/w32proc.c (Fw32_get_codepage_charset, Fw32_set_keyboard_layout):
Avoid compiler warnings about cast from integer to pointer of
different size.
src/w32menu.c (menubar_selection_callback, w32_menu_show): Cast to
UINT_PTR instead of EMACS_INT, to avoid compiler warnings about
casting from integer to pointer of different size.
(add_menu_item): Pass the help-echo string as a pointer to
Lisp_String, not as a Lisp_Object.
(w32_menu_display_help): Use make_lisp_ptr to reconstruct a Lisp
string object from its C pointer.
src/w32fns.c (w32_msg_pump) <WM_EMACS_UNREGISTER_HOT_KEY>: Use
make_lisp_ptr instead of XIL, to reconstruct a Lisp_Cons from its
C pointer.
<WM_EMACS_TOGGLE_LOCK_KEY>: msg.lparam is now a C integer.
(Fx_create_frame): Type-cast the result of XFASTINT to avoild
compiler warnings about size differences.
(Fw32_unregister_hot_key): Pass the tail of w32_grabbed_keys as a
pointer to a Lisp_Cons struct, not as a disguised EMACS_INT.
(Fw32_toggle_lock_key): Pass the new state of the key as a C
integer; use -1 for nil. Doc fix.
src/.gdbinit (xgetsym): New subroutine.
(xsymname, xsymbol): Use it.
(xprintsym): No need to call xgetptr.
* frame.el (frame-notice-user-settings): Remove code dealing with
frame-initial-frame-tool-bar-height. Turn off `tool-bar-mode'
only if `window-system-frame-alist' or `default-frame-alist' ask
for it.
(make-frame): Update frame-adjust-size-history if needed.
* dispnew.c (change_frame_size_1): Pass Qchange_frame_size to
adjust_frame_size.
* frame.c (frame_default_tool_bar_height): New variable.
(adjust_frame_size): Possibly add requested adjustment to
Vframe_adjust_size_history.
(make_frame): Initialize tool_bar_redisplayed_once slot.
(Fset_frame_height, Fset_frame_width, Fset_frame_size): Clarify
doc-string. Call adjust_frame_size unconditionally (the frame's
text size may remain unaltered but the pixel size may change).
(x_figure_window_size): If frame_default_tool_bar_height was
set, use it instead of calculating the tool bar height from
DEFAULT_TOOL_BAR_IMAGE_HEIGHT. Don't set
Vframe_initial_frame_tool_bar_height.
(Qchange_frame_size, Qxg_frame_set_char_size)
(Qset_window_configuration, Qx_create_frame_1)
(Qx_create_frame_2): New symbols.
(Vframe_initial_frame_tool_bar_height): Remove.
(Vframe_adjust_size_history): New history variable for debugging
frame size adjustments.
* frame.h (struct frame): New boolean slot
tool_bar_redisplayed_once.
(frame_default_tool_bar_height): Extern.
* gtkutil.c (xg_frame_set_char_size): Pass Qxg_frame_set_char_size
to adjust_frame_size.
* nsfns.m (Fx_create_frame): Pass Pass Qx_create_frame_1 and
Qx_create_frame_2 to adjust_frame_size.
* w32fns.c (x_change_tool_bar_height): Call adjust_frame_size with
inhibit 1 when we have not redisplayed the tool bar yet.
(Fx_create_frame): Pass Pass Qx_create_frame_1 and
Qx_create_frame_2 to adjust_frame_size.
* w32menu.c (set_frame_menubar): Simplify adjust_frame_size
call.
* window.c (Fset_window_configuration): Pass
Qset_window_configuration to adjust_frame_size.
* xdisp.c (redisplay_tool_bar): Assign new height to
frame_default_tool_bar_height.
(redisplay_internal): If we haven't redisplayed this frame's
tool bar, call redisplay_tool_bar early so we can adjust the
frame size accordingly.
* xfns.c (x_change_tool_bar_height): Call adjust_frame_size with
inhibit 1 when we have not redisplayed the tool bar yet.
(Fx_create_frame): Pass Pass Qx_create_frame_1 and
Qx_create_frame_2 to adjust_frame_size.
src/w32proc.c (sys_spawnve, get_lcid_callback): Use strcpy instead
of strcat.
src/w32menu.c (add_menu_item): Use stpcpy instead of strcat.
src/w32.c (sys_readdir, stat_worker, symlink): Use strcpy instead of
strcat.
nt/gnulib.mk (stpcpy, string): Sync with the latest change in
lib/gnulib.mk.
* frame.el (frame-notice-user-settings): Rewrite using
frame-initial-frame-tool-bar-height.
* menu-bar.el (menu-bar-horizontal-scroll-bar)
(menu-bar-no-horizontal-scroll-bar): New functions.
(menu-bar-showhide-scroll-bar-menu): Add bindings for horizontal
scroll bars.
* scroll-bar.el (scroll-bar-lines)
(set-horizontal-scroll-bar-mode)
(get-horizontal-scroll-bar-mode, horizontal-scroll-bar-mode)
(scroll-bar-horizontal-drag-1, scroll-bar-horizontal-drag)
(scroll-bar-toolkit-horizontal-scroll): New functions.
(horizontal-scroll-bar-mode)
(previous-horizontal-scroll-bar-mode)
(horizontal-scroll-bar-mode-explicit): New variables.
(horizontal-scroll-bar-mode): New option.
(toggle-horizontal-scroll-bar): Do something.
(top-level): Bind horizontal-scroll-bar mouse-1.
* startup.el (tool-bar-originally-present): Remove variable.
(command-line): Don't set tool-bar-originally-present.
* window.el (window-min-height): Update doc-string.
(window--dump-frame): Dump horizontal scroll bar values.
(window--min-size-1): Handle minibuffer window separately.
Count in margins and horizontal scroll bar. Return safe value
iff IGNORE equals 'safe.
(frame-windows-min-size): New function (used by frame resizing
routines).
(fit-frame-to-buffer, fit-window-to-buffer): Count in horizontal
scroll bars.
(window--sanitize-window-sizes): New function.
(window-split-min-size): Remove.
(split-window): Count divider-width. Don't use
`window-split-min-size' any more. Reword error messages.
Sanitize windows sizes after splitting.
* buffer.h (struct buffer): New fields scroll_bar_height and
horizontal_scroll_bar_type.
* buffer.c (bset_scroll_bar_height)
(bset_horizontal_scroll_bar_type): New functions.
(Fbuffer_swap_text): Handle old_pointm field.
(init_buffer_once): Set defaults for scroll_bar_height and
horizontal_scroll_bar_type.
(syms_of_buffer): New variables scroll_bar_height and
horizontal_scroll_bar_type.
* dispextern.h (window_part): Rename ON_SCROLL_BAR to
ON_VERTICAL_SCROLL_BAR. Add ON_HORIZONTAL_SCROLL_BAR.
(set_vertical_scroll_bar): Remove prototype.
(x_change_tool_bar_height): Add prototype.
* dispnew.c (adjust_frame_glyphs_for_frame_redisplay)
(window_to_frame_vpos, update_frame_1, scrolling, init_display):
Use FRAME_TOTAL_COLS and FRAME_TOTAL_LINES instead of FRAME_COLS
and FRAME_LINES.
(adjust_frame_glyphs_for_window_redisplay): Rearrange lines.
(update_window): Start mode_line_row->y after horizontal scroll
bar.
(change_frame_size_1): Call adjust_frame_size.
(init_display): When changing the size of a tty frame do not
pass height of menu bar.
(Qframe_windows_min_size): New symbol.
* frame.h (struct frame): List tool bar fields after menu bar
fields. Add official, total_lines, horizontal_scroll_bars,
config_scroll_bar_height and config_scroll_bar_lines fields.
(FRAME_HAS_HORIZONTAL_SCROLL_BARS)
(FRAME_CONFIG_SCROLL_BAR_HEIGHT, FRAME_CONFIG_SCROLL_BAR_LINES)
(FRAME_SCROLL_BAR_AREA_HEIGHT, FRAME_SCROLL_BAR_COLS)
(FRAME_SCROLL_BAR_LINES, FRAME_TOTAL_LINES, SET_FRAME_LINES)
(FRAME_WINDOWS_HEIGHT): New macros.
(SET_FRAME_HEIGHT, FRAME_TEXT_LINES_TO_PIXEL_HEIGHT)
(FRAME_PIXEL_Y_TO_LINE, FRAME_PIXEL_HEIGHT_TO_TEXT_LINES)
(FRAME_TEXT_TO_PIXEL_HEIGHT): Separately count top margin and
horizontal scroll bar.
(frame_inhibit_resize, adjust_frame_size)
(frame_windows_min_size): Add declarations.
(Qscroll_bar_height, Qhorizontal_scroll_bars)
(x_set_scroll_bar_default_height, x_set_left_fringe)
(x_set_right_fringe, x_set_vertical_scroll_bars)
(x_set_horizontal_scroll_bars, x_set_scroll_bar_width)
(x_set_scroll_bar_height): Add external declarations.
* frame.c: (frame_inhibit_resize, frame_windows_min_size)
(adjust_frame_size): New functions.
(make_frame): Initial horizontal_scroll_bars field. Use
SET_FRAME_LINES. Don't allow horizontal scroll bar in
minibuffer window.
(make_initial_frame, make_terminal_frame): No horizontal scroll
bar in initial and terminal frames. Use adjust_frame_size.
(Fframe_total_cols): Fix doc-string.
(Fframe_total_lines, Fscroll_bar_height): New Lisp functions.
(Fset_frame_height, Fset_frame_width, Fset_frame_size): Rewrite
using adjust_frame_size.
(Qscroll_bar_height, Qhorizontal_scroll_bars)
(Qframe_windows_min_size): New symbols.
(x_set_frame_parameters): Remove call of check_frame_size.
(x_report_frame_params): Return scroll_bar_height value.
(x_set_left_fringe, x_set_right_fringe): New functions.
(adjust_frame_height, x_set_internal_border_width)
(x_set_fringe_width): Remove.
(x_set_internal_border_width, x_set_vertical_scroll_bars)
(x_set_scroll_bar_width, x_set_right_divider_width)
(x_set_bottom_divider_width): Rewrite using adjust_frame_size.
(x_set_horizontal_scroll_bars, x_set_scroll_bar_height): New
functions.
(x_figure_window_size): Rewrite to make frame display the
expected number of lines.
(Vdefault_frame_scroll_bars): Rewrite doc-string.
(Vdefault_frame_horizontal_scroll_bars)
(Vframe_initial_frame_tool_bar_height)
(frame_inhibit_implied_resize): New variables.
* fringe.c (compute_fringe_widths): Remove.
* gtkutil.h (YG_SB_MIN, YG_SB_MAX, YG_SB_RANGE): Define.
(xg_create_horizontal_scroll_bar)
(xg_update_horizontal_scrollbar_pos)
(xg_set_toolkit_horizontal_scroll_bar_thumb)
(xg_get_default_scrollbar_height)
(xg_clear_under_internal_border): Extern.
* gtkutil.c (xg_frame_resized): Don't call
do_pending_window_change.
(xg_frame_set_char_size): Use adjust_frame_size.
(style_changed_cb): Call update_theme_scrollbar_height and
x_set_scroll_bar_default_height.
(x_wm_set_size_hint): Don't call check_frame_size.
(update_theme_scrollbar_height)
(xg_get_default_scrollbar_height)
(xg_create_horizontal_scroll_bar)
(xg_update_horizontal_scrollbar_pos)
(xg_set_toolkit_horizontal_scroll_bar_thumb): New functions.
(xg_create_scroll_bar): Set horizontal slot of bar.
(xg_initialize): Call update_theme_scrollbar_height.
(xg_clear_under_internal_border): No more static.
* insdel.c (adjust_suspend_auto_hscroll): New function.
(adjust_markers_for_delete, adjust_markers_for_insert)
(adjust_markers_for_replace): Call adjust_suspend_auto_hscroll.
* keyboard.c (readable_events, discard_mouse_events)
(make_lispy_event): Handle horizontal scroll bar click events.
(Fsuspend_emacs): When changing the size of a tty frame do not
pass height of menu bar.
(Qbefore_handle, Qhorizontal_handle, Qafter_handle, Qleft)
(Qright, Qleftmost, Qrightmost): New symbols.
* menu.c (Fx_popup_dialog): Use FRAME_TOTAL_LINES instead of
FRAME_LINES.
* minibuf.c (read_minibuf): Initialize suspend_auto_hscroll.
* nsfns.m (x_set_internal_border_width): New function.
* nsterm.m (ns_draw_fringe_bitmap, ns_set_vertical_scroll_bar):
Remove extended fringe code.
(x_set_window_size, x_new_font): Don't call
compute_fringe_widths.
* term.c (Fresume_tty): When changing the size of a tty frame do
not pass height of menu bar.
(clear_tty_hooks, set_tty_hooks): Clear
horizontal_scroll_bar_hook.
(init_tty): Frame has no horizontal scroll bars.
* termhooks.h (enum scroll_bar_part): Add scroll_bar_move_ratio,
scroll_bar_before_handle, scroll_bar_horizontal_handle,
scroll_bar_after_handle, scroll_bar_left_arrow,
scroll_bar_right_arrow, scroll_bar_to_leftmost and
scroll_bar_to_rightmost entries.
(enum event_kind): Add HORIZONTAL_SCROLL_BAR_CLICK_EVENT
(struct terminal): Add set_horizontal_scroll_bar_hook.
* w32console.c (initialize_w32_display): Clear
horizontal_scroll_bar_hook.
* w32fns.c (x_set_mouse_color): Use FRAME_W32_DISPLAY instead of
FRAME_X_DISPLAY.
(x_clear_under_internal_border, x_set_internal_border_width):
New functions.
(x_set_menu_bar_lines): Rewrite using frame_inhibit_resize. Set
windows_or_buffers_changed when adding the menu bar.
(x_set_tool_bar_lines): Rewrite using adjust_frame_size.
(x_change_tool_bar_height, x_set_scroll_bar_default_height)
(w32_createhscrollbar): New functions.
(w32_createscrollbar): Rename to w32_createvscrollbar.
(w32_createwindow): Init WND_HSCROLLBAR_INDEX.
(w32_name_of_message): Replace WM_EMACS_CREATESCROLLBAR by
WM_EMACS_CREATEVSCROLLBAR and WM_EMACS_CREATEHSCROLLBAR. Add
WM_EMACS_SHOWCURSOR.
(w32_wnd_proc): Handle WM_HSCROLL case. In WM_WINDOWPOSCHANGING
case do not artificially impose WM size hints. Handle
WM_EMACS_SHOWCURSOR case. Replace WM_EMACS_CREATESCROLLBAR case
by WM_EMACS_CREATEVSCROLLBAR and WM_EMACS_CREATEHSCROLLBAR
cases.
(my_create_tip_window): Replace WND_SCROLLBAR_INDEX by
WND_VSCROLLBAR_INDEX and WND_HSCROLLBAR_INDEX.
(unwind_create_frame_1): Remove.
(Fx_create_frame): Make both scrollbars the system standard
width and height. Use official field of frame structure to
inhibit running window-configuration-change-hook.
(x_create_tip_frame): Call SET_FRAME_LINES and change_frame_size
pixelwise. Handle frame's official field.
(w32_frame_parm_handlers): Remove x_set_fringe_width
entries. Add x_set_scroll_bar_height,
x_set_horizontal_scroll_bars, x_set_left_fringe and
x_set_right_fringe.
* w32inevt.c (resize_event, maybe_generate_resize_event): Do not
pass height of menu bar to change_frame_size.
* w32menu.c (set_frame_menubar): Rewrite using
frame_inhibit_resize.
* w32term.h (struct w32_display_info): Add
horizontal_scroll_bar_cursor and cursor_display_counter.
(struct scroll_bar): Add horizontal.
(HORIZONTAL_SCROLL_BAR_INSIDE_HEIGHT)
(HORIZONTAL_SCROLL_BAR_LEFT_RANGE)
(HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH)
(HORIZONTAL_SCROLL_BAR_LEFT_BORDER)
(HORIZONTAL_SCROLL_BAR_RIGHT_BORDER)
(HORIZONTAL_SCROLL_BAR_TOP_BORDER)
(HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER)
(HORIZONTAL_SCROLL_BAR_MIN_HANDLE): New macros.
(WM_EMACS_CREATEVSCROLLBAR, WM_EMACS_CREATEHSCROLLBAR): Define
instead of WM_EMACS_CREATESCROLLBAR.
(WND_VSCROLLBAR_INDEX, WND_HSCROLLBAR_INDEX): Define instead of
WND_SCROLLBAR_INDEX.
* w32term.c (horizontal_scroll_bar_min_handle)
(horizontal_scroll_bar_left_border)
(horizontal_scroll_bar_right_border): New integers.
(x_set_frame_alpha): Replace x_highlight_frame by
w32_focus_frame.
(x_window_to_scroll_bar): New argument "type". Update callers
accordingly.
(w32_set_horizontal_scroll_bar_thumb)
(x_horizontal_scroll_bar_report_motion)
(w32_set_horizontal_scroll_bar)
(w32_horizontal_scroll_bar_handle_click)
(x_horizontal_scroll_bar_report_motion): New functions.
(w32_mouse_position): Discriminate horizontal and vertical
scrollbar cases.
(my_create_scrollbar): Replace with two new functions
my_create_vscrollbar and my_create_hscrollbar.
(x_scroll_bar_create): New argument "horizontal". Update
callers accordingly.
(x_scroll_bar_remove, w32_condemn_scroll_bars)
(w32_redeem_scroll_bar, x_scroll_bar_clear): Handle horizontal
scroll bar case.
(w32_read_socket): Handle WM_HSCROLL cae.
(x_new_font): Don't recompute fringe widths. Use
frame_inhibit_resize. Calculate new menu bar height iff we
build without toolkit. Always clear under internal border.
(x_set_window_size): Don't check frame size or recompute
fringes. Reset fullscreen status before applying sizes. Always
resize as requested by pixelwise argument. Don't call
do_pending_window_change.
(x_wm_set_size_hint): Add call for FRAME_SCROLL_BAR_AREA_HEIGHT.
(w32_initialize_display_info): Initialize dpyinfo's
horizontal_scroll_bar_cursor entry.
(w32_create_terminal): Add set_horizontal_scroll_bar_hook.
(w32_initialize): Init horizontal_scroll_bar_min_handle and
horizontal_scroll_bar_left_border.
(w32fullscreen_hook): Intermittently resize window to normal
when switching from fullscreen to maximized state.
(run_window_configuration_change_hook): Don't run it if frame is
not official yet.
(unwind_change_frame): Remove.
(Fset_window_configuration): Rewrite using frame's official field.
* widget.c (set_frame_size): Don't call compute_fringe_widths.
(EmacsFrameSetCharSize): Obey frame_inhibit_resize.
* window.h (struct window): New fields old_pointm,
horizontal_scroll_bar, horizontal_scroll_bar_type, hscroll_whole,
scroll_bar_height and suspend_auto_hscroll.
(wset_horizontal_scroll_bar, wset_horizontal_scroll_bar_type):
New functions.
(sanitize_window_sizes): Extern.
(MINI_NON_ONLY_WINDOW_P, MINI_ONLY_WINDOW_P, WINDOW_PSEUDO_P)
(WINDOW_TOPMOST_P, WINDOW_HAS_HORIZONTAL_SCROLL_BAR)
(WINDOW_CONFIG_SCROLL_BAR_HEIGHT)
(WINDOW_CONFIG_SCROLL_BAR_LINES)
(WINDOW_SCROLL_BAR_LINES, WINDOW_SCROLL_BAR_AREA_HEIGHT): New
macros.
(WINDOW_LEFT_FRINGE_COLS, WINDOW_RIGHT_FRINGE_COLS)
(WINDOW_FRINGE_COLS, WINDOW_FRINGE_EXTENDED_P): Remove macros.
(WINDOW_VERTICAL_SCROLL_BAR_TYPE)
(WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT)
(WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT)
(WINDOW_HAS_VERTICAL_SCROLL_BAR): Minor rewrite.
(WINDOW_BOX_HEIGHT_NO_MODE_LINE, WINDOW_BOX_TEXT_HEIGHT)
(WINDOW_SCROLL_BAR_AREA_Y): Count in scroll bar height.
* window.c (wset_old_pointm, Fwindow_scroll_bar_height)
(Fwindow_old_point, sanitize_window_sizes): New functions.
(Qwindow_sanitize_window_sizes): New symbol.
(window_body_height): Count in horizontal scroll bar.
(set_window_hscroll, Fscroll_left, Fscroll_right): Set
suspend_auto_hscroll slot.
(Fwindow_inside_edges): Count fringes pixelwise.
(coordinates_in_window, Fcoordinates_in_window_p): Consider
horizontal scroll bar.
(check_frame_size, adjust_window_margins): Remove functions and
corresponding calls.
(set_window_buffer): Initialize old_pointm and horizontal scroll
bars.
(temp_output_buffer_show): Reset hscroll related fields.
Initialize old_pointm.
(make_parent_window): Initialize old_pointm.
(make_window): Initialize old_pointm, horizontal scroll bar type,
and scroll bar height.
(resize_frame_windows): Don't count top margin in new sizes.
Don't use safe sizes when shrinking a frame; let the window
manager do the clipping.
(Fsplit_window_internal): Inherit horizontal scroll bar type and
height.
(Fdelete_window_internal): Unchain old_pointm marker.
(window_scroll_pixel_based, Fscroll_other_window): Adjust
old_pointm.
(Fwindow_text_width, Fwindow_text_height): New argument
"pixelwise".
(struct saved_window): New fields, old_pointm, hscroll_whole,
suspend_auto_hscroll, scroll_bar_height and
horizontal_scroll_bar_type.
(Fset_window_configuration, save_window_save): Set new fields of
saved_window.
(apply_window_adjustment): Don't call adjust_window_margins.
(set_window_margins): Don't change margins if new sizes don't
fit into window.
(set_window_scroll_bars): New argument "horizontal_type".
Handle horizontal scroll bars. Don't change scroll bars if they
don't fit into window.
(Fset_window_scroll_bars): New argument "horizontal_type".
(Fwindow_scroll_bars): Return values for horizontal scroll bars.
(compare_window_configurations): Compare horizontal scroll bar
settings.
* xdisp.c (window_text_bottom_y, window_box_height): Count in
horizontal scroll bar height.
(pixel_to_glyph_coords, init_xdisp): Use FRAME_TOTAL_LINES
instead of FRAME_LINES.
(remember_mouse_glyph): Case ON_SCROLL_BAR changed to
ON_VERTICAL_SCROLL_BAR.
(with_echo_area_buffer): Initialize old_pointm.
(with_echo_area_buffer_unwind_data): Store old_pointm values in
vector.
(unwind_with_echo_area_buffer): Handle old_pointm.
(update_tool_bar): Set do_update when the tool bar window has at
least one line (since this is what the user sets).
(MAX_FRAME_TOOL_BAR_HEIGHT): Remove macro.
(redisplay_tool_bar): Return early when toolbar has zero lines.
Call x_change_tool_bar_height. Don't use max_tool_bar_height.
(hscroll_window_tree): Handle suspension of auto_hscroll and
old_pointm.
(set_horizontal_scroll_bar): New function.
(redisplay_window): Set ignore_mouse_drag_p when tool bar has
more than one line. Handle horizontal scroll bars.
(note_mouse_highlight): Handle horizontal scrol bars.
(expose_frame): Set dimensions of XRectangle from frame's text
sizes.
(Vvoid_text_area_pointer): Update doc-string.
* xfns.c (x_set_menu_bar_lines): Use adjust_frame_size.
(x_change_tool_bar_height, x_set_scroll_bar_default_height)
(x_set_internal_border_width): New functions.
(x_set_tool_bar_lines): Call x_change_tool_bar_height.
(unwind_create_frame_1): Remove.
(Fx_create_frame): Handle horizontal scroll bars. Use official
field of frame structure to inhibit running
window-configuration-change-hook.
(x_create_tip_frame): Call SET_FRAME_LINES and change_frame_size
pixelwise. Handle frame's official field.
(x_frame_parm_handlers): Add x_set_scroll_bar_height,
x_set_horizontal_scroll_bars, x_set_left_fringe,
x_set_right_fringe.
* xmenu.c (update_frame_menubar, free_frame_menubar): Use
adjust_frame_size.
* xterm.h (struct x_display_info): Add
horizontal_scroll_bar_cursor and Xatom_Horizontal_Scrollbar
slots.
(struct scroll_bar): Add horizontal slot.
(HORIZONTAL_SCROLL_BAR_INSIDE_HEIGHT)
(HORIZONTAL_SCROLL_BAR_LEFT_RANGE)
(HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH): New macros.
(HORIZONTAL_SCROLL_BAR_LEFT_BORDER)
(HORIZONTAL_SCROLL_BAR_RIGHT_BORDER)
(HORIZONTAL_SCROLL_BAR_TOP_BORDER)
(HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER)
(HORIZONTAL_SCROLL_BAR_MIN_HANDLE): Define.
(x_clear_under_internal_border): Remove.
* xterm.c (XTmouse_position): Handle horizontal scroll bars.
(x_window_to_scroll_bar): New argument TYPE. Update callers.
(x_send_scroll_bar_event, x_scroll_bar_create): New arguments
HORIZONTAL. Update callers.
(horizontal_action_hook_id): New action hook id.
(x_horizontal_scroll_bar_to_input_event)
(x_create_horizontal_toolkit_scroll_bar)
(xt_horizontal_action_hook)
(x_set_toolkit_horizontal_scroll_bar_thumb)
(XTset_horizontal_scroll_bar, x_net_wm_state)
(x_horizontal_scroll_bar_report_motion): New functions.
(xg_scroll_callback, x_scroll_bar_handle_click): Handle
horizontal scroll bars.
(SCROLL_BAR_HORIZONTAL_NAME): Define.
(XTset_vertical_scroll_bar): Attempt to clear areas not covered
by scroll bar.
(XTcondemn_scroll_bars, XTredeem_scroll_bar): Rewrite. Handle
horizontal scroll bars.
(handle_one_xevent): Handle horizontal scroll bar events. Call
x_net_wm_state.
(x_set_window_size_1, x_wm_set_size_hint): Don't call
check_frame_size.
(x_set_window_size): Don't call check_frame_size and
do_pending_window_change.
(x_term_init): Init horizontal_scroll_bar_cursor display info.
(x_create_terminal): Add set_horizontal_scroll_bar_hook.
(x_scroll_bar_set_handle): Add some checks when calling
x_clear_area.
src/w32menu.c (w32_menu_show): Fix a typo that broke compilation.
src/menu.h (enum button_type, struct _widget_value) [HAVE_NTGUI]:
Define instead of including ../lwlib/lwlib.h, which causes
compilation errors due to missing X11 headers.
src/w32menu.c (w32_popup_dialog): Don't condition the whole function
on HAVE_DIALOGS. If the dialog is "simple", pop up a message box
to show it; otherwise return 'unsupported--w32-dialog' to signal
to the caller that emulation with menus is necessary. This
resurrects code inadvertently deleted by the 2013-10-08 commit.
(syms_of_w32menu): DEFSYM Qunsupported__w32_dialog.
src/w32term.h (w32_popup_dialog): Prototype is no longer conditioned
by HAVE_DIALOGS.
src/menu.c (Fx_popup_dialog): Don't condition the call to
w32_popup_dialog on HAVE_DIALOGS. If w32_popup_dialog returns a
special symbol 'unsupported--w32-dialog', emulate the dialog with
a menu by calling x-popup-menu.
src/menu.h (Qunsupported__w32_dialog): New extern variable.
src/w32term.c (w32_initialize): Declare the argument of
set_user_model as const.
src/w32menu.c <MessageBoxW_Proc>: Fix argument declarations.
(w32_menu_show): Constify some arguments passed to MessageBox.
src/w32uniscribe.c (uniscribe_font_driver): Use LISP_INITIALLY_ZERO
to initialize Lisp objects.
src/w32font.c (w32font_driver): Use LISP_INITIALLY_ZERO to
initialize Lisp objects.
src/frame.c (x_set_frame_parameters) [HAVE_X_WINDOWS]: Declare and
use variables used only on X under that condition.
src/fileio.c (Fcopy_file) [!WINDOWSNT]: Don't declare on Windows
variables not used there.
Especially, C99 prohibits nesting a struct X inside struct Y if
struct X has a flexible array member.
Also, merge from gnulib, incorporating:
2013-11-03 intprops: port to Oracle Studio c99
* lib/intprops.h: Update from gnulib.
* src/alloc.c (struct sdata): New type.
(sdata): Implement in terms of struct sdata.
Remove u member; all uses replaced by next_vector, set_next_vector.
(SDATA_SELECTOR, SDATA_DATA, SDATA_DATA_OFFSET): Adjust to sdata change.
(SDATA_DATA_OFFSET): Now a constant, not a macro.
(struct sblock): Rename first_data member to data, which is now
a flexible array member. All uses changed.
(next_vector, set_next_vector, large_vector_vec): New functions.
(vector_alignment): New constant.
(roundup_size): Make it a multiple of ALIGNOF_STRUCT_LISP_VECTOR, too.
(struct large-vector): Now merely a NEXT member, since the old approach
ran afoul of stricter C99. All uses changed to use
large_vector_vec or large_vector_offset.
(large_vector_offset): New constant.
* src/dispnew.c: Include tparam.h, for tgetent.
Do not include term.h; no longer needed.
* src/gnutls.c (Fgnutls_boot): Don't continue after calling a _Noreturn.
* src/lisp.h (ENUM_BF) [__SUNPRO_C && __STDC__]: Use unsigned int.
(struct Lisp_Vector): Use a flexible array member for contents,
instead of a union with a member that is an array of size 1.
All uses changed.
(ALIGNOF_STRUCT_LISP_VECTOR): New constant, to make up for the
fact that the struct no longer contains a union.
(struct Lisp_Misc_Any, struct Lisp_Marker, struct Lisp_Overlay)
(struct Lisp_Save_Value, struct Lisp_Free):
Use unsigned, not int, for spacers, to avoid c99 warning.
(union specbinding): Use unsigned, not bool, for bitfield, as
bool is not portable to pre-C99 hosts.
This helps to avoid a few glitches dictated by C's aliasing rules.
* lisp.h (struct Lisp_Vector): Use union for next and
contents member. Adjust comment. Change related users.
* alloc.c (next_in_free_list, set_next_in_free_list): Remove.
Related users changed.
* buffer.c, bytecode.c, ccl.c, character.h, chartab.c, composite.c:
* composite.h, disptab.h, fns.c, fontset.c, indent.c, keyboard.c:
* lread.c, msdos.c, process.c, w32menu.c, window.c, xdisp.c:
* xfaces.c, xfont.c, xmenu.c: Related users changed.
* frame.h, msdos.h, w32term.h, xterm.h (x_pixel_width)
(x_pixel_height): Drop prototypes.
* msdos.c, nsfns.m, w32fns.c, xfns.c (x_pixel_width)
(x_pixel_height): Drop implementations.
* frame.c (Fframe_pixel_height): Use FRAME_PIXEL_HEIGHT
which should be always valid for window frame.
(Frame_pixel_width): Likewise with FRAME_PIXEL_WIDTH.
* w32menu.c (Fx_popup_dialog):
* xmenu.c (Fx_popup_dialog): Likewise for both.
with the only contents slot. This is possible because each valid
window may have either the child window (in vertical or horizontal
combination) or buffer to display (for the leaf window). Using that,
a lof of operations to traverse and/or change window hierarchies may
be simplified. New member horizontal is used to distinguish between
horizontal and vertical combinations of internal windows.
(WINDOW_LEAF_P, WINDOW_HORIZONTAL_COMBINATION_P)
(WINDOW_VERTICAL_COMBINATION_P): New macros.
(WINDOW_VALID_P, WINDOW_LIVE_P): Adjust to match struct window changes.
* window.c (wset_hchild, wset_vchild): Remove. Adjust all users.
Use contents slot, not buffer, where appropriate.
(wset_combination): New function.
(wset_buffer): Add eassert.
(Fframe_first_window): Simplify the loop reaching first window.
(Fwindow_buffer): Use WINDOW_LEAF_P.
(Fwindow_top_child): Use WINDOW_VERTICAL_COMBINATION_P.
(Fwindow_left_child): Use WINDOW_HORIZONTAL_COMBINATION_P.
(unshow_buffer): Convert initial debugging check to eassert.
(replace_window, recombine_windows, Fdelete_other_windows_internal)
(make_parent_window, window_resize_check, window_resize_apply)
(resize_frame_windows, Fsplit_window_internal, Fdelete_window_internal)
(Fset_window_configuration, delete_all_child_windows, save_window_save):
Adjust to match struct window changes.
(window_loop): Check for broken markers in CHECK_ALL_WINDOWS.
(mark_window_cursors_off, count_windows, get_leaf_windows)
(foreach_window_1): Simplify the loop.
* alloc.c (mark_object): Do not check for the leaf window because
internal windows has no glyph matrices anyway.
* dispnew.c (clear_window_matrices, showing_window_margins_p)
(allocate_matrices_for_window_redisplay, fake_current_matrices)
(allocate_matrices_for_frame_redisplay, free_window_matrices)
(build_frame_matrix_from_window_tree, mirror_make_current)
(frame_row_to_window, mirror_line_dance, check_window_matrix_pointers)
(update_window_tree, set_window_update_flags): Simplify the loop.
(sync_window_with_frame_matrix_rows): Enforce live window.
Use contents slot, not buffer, where appropriate.
* frame.c (set_menu_bar_lines_1): Use WINDOW_VERTICAL_COMBINATION_P
and WINDOW_HORIZONTAL_COMBINATION_P.
(make_frame_visible_1): Simplify the loop.
Use contents slot, not buffer, where appropriate.
* xdisp.c (hscroll_window_tree, mark_window_display_accurate)
(redisplay_windows, redisplay_mode_lines, update_cursor_in_window_tree)
(expose_window_tree): Likewise.
Use contents slot, not buffer, where appropriate.
* textprop.c (get_char_property_and_overlay): Add CHECK_LIVE_WINDOW
to avoid deleted windows. Use contents slot instead of buffer.
* buffer.c, dispextern.h, editfns.c, fileio.c, font.c, fringe.c:
* indent.c, insdel.c, keyboard.c, keymap.c, minibuf.c, msdos.c:
* nsfns.m, nsmenu.m, nsterm.m, print.c, w32fns.c, w32menu.c, xfaces.c:
* xfns.c, xmenu.c: Use contents slot, not buffer, where appropriate.
since all users are dead long ago.
* nsterm.h (struct x_output): Use the only dummy member.
* w32menu.c (pending_menu_activation): Remove since not
really used.
(set_frame_menubar): Adjust user.
* w32term.h (struct x_output): Drop outdated #if 0 code.
(struct w32_output): Use bitfields for explicit_parent,
asked_for_visible and menubar_active members. Drop
unused pending_menu_activation member.
* xterm.h (struct x_output): Drop outdated #if 0 code.
Use bitfields for explicit_parent, asked_for_visible,
has_been_visible and net_wm_state_hidden_seen members.
src/w32term.h (SCROLL_BAR_PACK, SCROLL_BAR_UNPACK): Define for x64.
(SET_SCROLL_BAR_W32_WINDOW): Cast ID to intptr_t, for
compatibility with x64.
src/w32term.c (w32_draw_underwave): Don't use GCC extensions for
defining an XRectangle structure.
src/w32proc.c (RVA_TO_PTR, w32_executable_type): Fix pointer
arithmetics for compatibility with x64.
src/w32menu.c (add_menu_item): Use UINT_PTR instead of UINT, for
compatibility with x64.
src/w32heap.h: Adjust prototypes and declarations.
src/w32heap.c (RVA_TO_PTR, allocate_heap, sbrk, init_heap)
(round_heap): Use DWORD_PTR, ptrdiff_t and size_t instead of
DWORD, long, and unsigned long, for compatibility with x64.
(allocate_heap) [_WIN64]: Reserve 32GB of memory.
(sbrk): Argument is now of type ptrdiff_t.
src/w32fns.c (HMONITOR): Condition declaration on _WIN32_WINNT being
less than 0x0500.
(w32_msg_pump): Use WPARAM type for 'result'.
src/w32.c (init_environment, get_emacs_configuration): Support AMD64
architecture.
(init_ntproc): Cast arguments of _open_osfhandle to intptr_t, for
compatibility with x64.
src/vm-limit.c (lim_data): Now size_t.
(check_memory_limits): Adjust prototypes of real_morecore and
__morecore to receive argument of type ptrdiff_t. Use size_t for
five_percent and data_size.
src/unexw32.c: Use DWORD_PTR instead of DWORD for file-scope
variables, for compatibility with x64.
(rva_to_section, offset_to_section, relocate_offset)
(OFFSET_TO_RVA, RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET)
(PTR_TO_RVA, RVA_TO_PTR, OFFSET_TO_PTR, get_section_info)
(copy_executable_and_dump_data): Use DWORD_PTR instead of DWORD
for compatibility with x64.
src/sysdep.c (STDERR_FILENO): Define if not already defined.
src/ralloc.c (real_morecore): Argument type is now ptrdiff_t.
(__morecore): Argument type is now ptrdiff_t.
(ROUNDUP, MEM_ROUNDUP): Use size_t instead of 'unsigned long'.
(relinquish): Use ptrdiff_t type for 'excess'.
(r_alloc_sbrk): Argument type is now ptrdiff_t.
src/makefile.w32-in (HEAPSIZE): Get value from EMACS_HEAPSIZE.
(bootstrap-temacs-CMD, bootstrap-temacs-SH): Use $(EMACS_PURESIZE)
instead of a literal number.
src/gmalloc.c [WINDOWSNT]: Include w32heap.h.
(min): Define only if not already defined.
src/frame.c (x_report_frame_params): Use EMACS_UINT for the return
value of FRAME_X_WINDOW, to fit a 64-bit pointer on 64-bit Windows
hosts.
src/image.c (x_bitmap_pixmap): Return ptrdiff_t, not int, since
'bitmaps' is a pointer.
src/dispextern.h (x_bitmap_pixmap): Adjust prototype.
src/alloc.c (gdb_make_enums_visible): Now conditional on __GNUC__.
nt/makefile.w32-in ($(TRES)): Use $(EMACS_MANIFEST).
nt/inc/sys/socket.h: Don't map Winsock error codes to standard ones
that are already defined.
nt/inc/ms-w32.h (EMACS_INT, EMACS_UINT, EMACS_INT_MAX, PRIuMAX)
(pI, _INTPTR) [_MSC_VER]: Fix definitions for MSVC.
[_MSC_VER]: Add pragmas to suppress some MSVC warnings.
nt/preprep.c (pfnCheckSumMappedFile, rva_to_section)
(offset_to_section, relocate_offset, OFFSET_TO_RVA)
(RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET, PTR_TO_RVA)
(OFFSET_TO_PTR, ROUND_UP, ROUND_DOWN)
(copy_executable_and_move_sections, ADJUST_IMPORT_RVA, main): Use
DWORD_PTR instead of DWORD for compatibility with x64.
nt/nmake.defs: Support AMD64.
(EMACS_HEAPSIZE, EMACS_PURESIZE, EMACS_MANIFEST): New macros.
nt/gmake.defs: (EMACS_HEAPSIZE, EMACS_PURESIZE, EMACS_MANIFEST):
New macros.
nt/addsection.c (pfnCheckSumMappedFile, rva_to_section)
(offset_to_section, relocate_offset, OFFSET_TO_RVA)
(RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET, PTR_TO_RVA)
(OFFSET_TO_PTR, ROUND_UP, ROUND_DOWN)
(copy_executable_and_add_section, main): Use DWORD_PTR instead of
DWORD, for compatibility with x64.
nt/emacs-x64.manifest: New file.
nt/emacs-x86.manifest: Renamed from emacs.manifest.
lib-src/ntlib.c (gettimeofday): Copy from src/w32.c. lib/gettime.
needs this function.
* nt/inc/ms-w32.h (emacs_raise): New macro.
* src/alloc.c (die):
* src/sysdep.c (emacs_abort) [HAVE_NTGUI]:
Avoid recursive loop if there's a fatal error in the function itself.
* src/atimer.c (pending_atimers):
* src/blockinput.h: Don't include "atimer.h"; no longer needed.
(interrupt_input_pending): Remove. All uses removed.
pending_signals now counts both atimers and ordinary interrupts.
This is less racy than having three separate pending-signal flags.
(block_input, unblock_input, totally_unblock_input, unblock_input_to)
(input_blocked_p):
Rename from their upper-case counterparts BLOCK_INPUT,
UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT, UNBLOCK_INPUT_TO,
INPUT_BLOCKED_P, and turn into functions. All uses changed.
This makes it easier to access volatile variables more accurately.
(BLOCK_INPUT_RESIGNAL): Remove. All uses replaced by unblock_input ().
(input_blocked_p): Prefer this to 'interrupt_input_blocked', as
that's more reliable if the code is buggy and sets
interrupt_input_blocked to a negative value. All uses changed.
* src/atimer.c (deliver_alarm_signal):
Remove. No need to deliver this to the parent; any thread can
handle this signal now. All uses replaced by underlying handler.
* src/atimer.c (turn_on_atimers):
* src/dispnew.c (handle_window_change_signal):
* src/emacs.c (handle_danger_signal):
* src/keyboard.c (kbd_buffer_get_event):
Don't reestablish signal handler; not needed with sigaction.
* src/blockinput.h (UNBLOCK_INPUT_TO, TOTALLY_UNBLOCK_INPUT)
(UNBLOCK_INPUT_TO):
Rework to avoid unnecessary accesses to volatile variables.
(UNBLOCK_INPUT_TO): Now a function.
(totally_unblock_input, unblock_input): New decls.
* src/data.c (handle_arith_signal, deliver_arith_signal): Move to sysdep.c
(init_data): Remove. Necessary stuff now done in init_signal.
* src/emacs.c, src/xdisp.c: Include "atimer.h", since we invoke atimer functions.
* src/emacs.c (handle_fatal_signal, deliver_fatal_signal): Move to sysdep.c.
(fatal_error_code): Remove; no longer needed.
(terminate_due_to_signal): Rename from fatal_error_backtrace, since
it doesn't always backtrace. All uses changed. No need to reset
signal to default, since sigaction and/or die does that for us now.
Use emacs_raise (FOO), not kill (getpid (), FOO).
(main): Check more-accurately whether we're dumping.
Move fatal-error setup to sysdep.c
* src/floatfns.c: Do not include "syssignal.h"; no longer needed.
* src/gtkutil.c (xg_get_file_name, xg_get_font):
Remove no-longer-needed signal-mask manipulation.
* src/keyboard.c, src/process.c (POLL_FOR_INPUT):
Don't depend on USE_ASYNC_EVENTS, a symbol that is never defined.
* src/keyboard.c (read_avail_input): Remove.
All uses replaced by gobble_input.
(Ftop_level): Use TOTALLY_UNBLOCK_INPUT rather than open code.
(kbd_buffer_store_event_hold, gobble_input):
(record_asynch_buffer_change) [USABLE_SIGIO]:
(store_user_signal_events):
No need to mess with signal mask.
(gobble_input): If blocking input and there are terminals, simply
set pending_signals to 1 and return. All hooks changed to not
worry about whether input is blocked.
(process_pending_signals): Clear pending_signals before processing
them, in case a signal comes in while we're processing.
By convention callers now test pending_signals before calling us.
(UNBLOCK_INPUT_TO, unblock_input, totally_unblock_input):
New functions, to support changes to blockinput.h.
(handle_input_available_signal): Now extern.
(reinvoke_input_signal): Remove. All uses replaced by
handle_async_input.
(quit_count): Now volatile, since a signal handler uses it.
(handle_interrupt): Now takes bool IN_SIGNAL_HANDLER as arg. All
callers changed. Block SIGINT only if not already blocked.
Clear sigmask reliably, even if Fsignal returns, which it can.
Omit unnecessary accesses to volatile var.
(quit_throw_to_read_char): No need to restore sigmask.
* src/keyboard.c (gobble_input, handle_user_signal):
* src/process.c (wait_reading_process_output):
Call signal-handling code rather than killing ourselves.
* src/lisp.h: Include <float.h>, for...
(IEEE_FLOATING_POINT): New macro, moved here to avoid duplication.
(pending_signals): Now volatile.
(syms_of_data): Now const if IEEE floating point.
(handle_input_available_signal) [USABLE_SIGIO]:
(terminate_due_to_signal, record_child_status_change): New decls.
* src/process.c (create_process): Avoid disaster if memory is exhausted
while we're processing a vfork, by tightening the critical section
around the vfork.
(send_process_frame, process_sent_to, handle_pipe_signal)
(deliver_pipe_signal): Remove. No longer needed, as Emacs now
ignores SIGPIPE.
(send_process): No need for setjmp/longjmp any more, since the
SIGPIPE stuff is now gone. Instead, report an error if errno
is EPIPE.
(record_child_status_change): Now extern. PID and W are now args.
Return void, not bool. All callers changed.
* src/sysdep.c (wait_debugging) [(BSD_SYSTEM || HPUX) && !defined (__GNU__)]:
Remove. All uses removed. This bug should be fixed now in a
different way.
(wait_for_termination_1): Use waitpid rather than sigsuspend,
and record the child status change directly. This avoids the
need to futz with the signal mask.
(process_fatal_action): Move here from emacs.c.
(emacs_sigaction_flags): New function, containing
much of what used to be in emacs_sigaction_init.
(emacs_sigaction_init): Use it. Block nonfatal system signals that are
caught by emacs, to make races less likely.
(deliver_process_signal): Rename from handle_on_main_thread.
All uses changed.
(BACKTRACE_LIMIT_MAX): Now at top level.
(thread_backtrace_buffer, threadback_backtrace_pointers):
New static vars.
(deliver_thread_signal, deliver_fatal_thread_signal):
New functions, for more-accurate delivery of thread-specific signals.
(handle_fatal_signal, deliver_fatal_signal): Move here from emacs.c.
(deliver_arith_signal): Handle in this thread, not
in the main thread, since it's triggered by this thread.
(maybe_fatal_sig): New function.
(init_signals): New arg DUMPING so that we can be more accurate
about whether we're dumping. Caller changed.
Treat thread-specific signals differently from process-general signals.
Block all signals while handling fatal error; that's safer.
xsignal from SIGFPE only on non-IEEE hosts, treating it as fatal
on IEEE hosts.
When batch, ignore SIGHUP, SIGINT, SIGTERM if they were already ignored.
Ignore SIGPIPE unless batch.
(emacs_backtrace): Output backtrace for the appropriate thread,
which is not necessarily the main thread.
* src/syssignal.h: Include <stdbool.h>.
(emacs_raise): New macro.
* src/xterm.c (x_connection_signal): Remove; no longer needed
now that we use sigaction.
(x_connection_closed): No need to mess with sigmask now.
(x_initialize): No need to reset SIGPIPE handler here, since
init_signals does this for us now.
Fixes: debbugs:12471
Here, we use the generic window-system configuration system we just
implemented to support the w32 window-system in the mainline build
under Cygwin. (Previously, the w32 window system could only be
compiled as part of the NT-native Emacs build process.)
The changes in this patch need to be applied atomically in order to
avoid breaking Emacs. The changes include:
- Changes throughout the Lisp and C code to not assume that
NT Emacs and the w32 window system are synonymous.
- Wiring up the regular select(2) event loop to Windows messages
- Cleaning up the w32 drag-and-drop receiving code.
- Exposing Cygwin path conversion functions to elisp.
- Unicode file dialog support when compiling for Cygwin.
- Splitting the w32 term lisp initialization code into code
applicable to any w32 window-system and code specific to
system-type windows-nt.
- Integrating the old and new w32 code into the build system.
src/w32xfns.c:
src/w32uniscribe.c:
src/w32term.c:
src/w32select.c:
src/w32reg.c:
src/w32proc.c:
src/w32menu.c:
src/w32inevt.c:
src/w32heap.c:
src/w32font.c:
src/w32fns.c:
src/w32console.c:
src/w32.c:
src/w16select.c: Remove inclusion of setjmp.h, as it is now included
by lisp.h. This completes removal of setjmp.h inclusion
erroneously announced in the previous commit.
src/lisp.h [!HAVE__SETJMP, !HAVE_SIGSETJMP]: Make the commentary
more accurate.
src/image.c (_setjmp) [!HAVE__SETJMP]: Define only if 'setjmp' is
not defined as a macro. The latter happens on MS-Windows.
