1. 23 Jul, 2013 1 commit
    • Paul Eggert's avatar
      Port to GNU/Linux systems with tinfo but not ncurses. · a29c3e6d
      Paul Eggert authored
      * configure.ac (USE_NCURSES): New symbol.
      * src/dispnew.c (init_display): Depend on USE_NCURSES, not GNU_LINUX,
      to decide whether ncurses is being used.  Without this change,
      GCC complains about tgetent not being declared, on a system
      that has tinfo installed but ncurses not installed.
      a29c3e6d
  2. 16 Jul, 2013 2 commits
    • Paul Eggert's avatar
      * fileio.c (report_file_errno): Fix errno reporting bug. · a9757f6a
      Paul Eggert authored
      If the file name is neither null nor a pair, package it up as a
      singleton list.  All callers changed, both to this function and to
      report_file_error.  This fixes a bug where the memory allocator
      invoked by list1 set errno so that the immediately following
      report_file_error reported the wrong errno value.
      a9757f6a
    • Paul Eggert's avatar
      Prefer list1 (X) to Fcons (X, Qnil) when building lists. · 6c6f1994
      Paul Eggert authored
      This makes the code easier to read and the executable a bit smaller.
      Do not replace all calls to Fcons that happen to create lists,
      just calls that are intended to create lists.  For example, when
      creating an alist that maps FOO to nil, use list1 (Fcons (FOO, Qnil))
      rather than list1 (list1 (FOO)) or Fcons (Fcons (FOO, Qnil), Qnil).
      Similarly for list2 through list5.
      * buffer.c (Fget_buffer_create, Fmake_indirect_buffer):
      * bytecode.c (exec_byte_code):
      * callint.c (quotify_arg, Fcall_interactively):
      * callproc.c (Fcall_process, create_temp_file):
      * charset.c (load_charset_map_from_file)
      (Fdefine_charset_internal, init_charset):
      * coding.c (get_translation_table, detect_coding_system)
      (Fcheck_coding_systems_region)
      (Fset_terminal_coding_system_internal)
      (Fdefine_coding_system_internal, Fdefine_coding_system_alias):
      * composite.c (update_compositions, Ffind_composition_internal):
      * dired.c (directory_files_internal, file_name_completion)
      (Fsystem_users):
      * dispnew.c (Fopen_termscript, bitch_at_user, init_display):
      * doc.c (Fsnarf_documentation):
      * editfns.c (Fmessage_box):
      * emacs.c (main):
      * eval.c (do_debug_on_call, signal_error, maybe_call_debugger)
      (Feval, eval_sub, Ffuncall, apply_lambda):
      * fileio.c (make_temp_name, Fcopy_file, Faccess_file)
      (Fset_file_selinux_context, Fset_file_acl, Fset_file_modes)
      (Fset_file_times, Finsert_file_contents)
      (Fchoose_write_coding_system, Fwrite_region):
      * fns.c (Flax_plist_put, Fyes_or_no_p, syms_of_fns):
      * font.c (font_registry_charsets, font_parse_fcname)
      (font_prepare_cache, font_update_drivers, Flist_fonts):
      * fontset.c (Fset_fontset_font, Ffontset_info, syms_of_fontset):
      * frame.c (make_frame, Fmake_terminal_frame)
      (x_set_frame_parameters, x_report_frame_params)
      (x_default_parameter, Fx_parse_geometry):
      * ftfont.c (syms_of_ftfont):
      * image.c (gif_load):
      * keyboard.c (command_loop_1):
      * keymap.c (Fmake_keymap, Fmake_sparse_keymap, access_keymap_1)
      (Fcopy_keymap, append_key, Fcurrent_active_maps)
      (Fminor_mode_key_binding, accessible_keymaps_1)
      (Faccessible_keymaps, Fwhere_is_internal):
      * lread.c (read_emacs_mule_char):
      * menu.c (find_and_return_menu_selection):
      * minibuf.c (get_minibuffer):
      * nsfns.m (Fns_perform_service):
      * nsfont.m (ns_script_to_charset):
      * nsmenu.m (ns_popup_dialog):
      * nsselect.m (ns_get_local_selection, ns_string_from_pasteboard)
      (Fx_own_selection_internal):
      * nsterm.m (append2):
      * print.c (Fredirect_debugging_output)
      (print_prune_string_charset):
      * process.c (Fdelete_process, Fprocess_contact)
      (Fformat_network_address, set_socket_option)
      (read_and_dispose_of_process_output, write_queue_push)
      (send_process, exec_sentinel):
      * sound.c (Fplay_sound_internal):
      * textprop.c (validate_plist, add_properties)
      (Fput_text_property, Fadd_face_text_property)
      (copy_text_properties, text_property_list, syms_of_textprop):
      * unexaix.c (report_error):
      * unexcoff.c (report_error):
      * unexsol.c (unexec):
      * xdisp.c (redisplay_tool_bar, store_mode_line_string)
      (Fformat_mode_line, syms_of_xdisp):
      * xfaces.c (set_font_frame_param)
      (Finternal_lisp_face_attribute_values)
      (Finternal_merge_in_global_face, syms_of_xfaces):
      * xfns.c (x_default_scroll_bar_color_parameter)
      (x_default_font_parameter, x_create_tip_frame):
      * xfont.c (xfont_supported_scripts):
      * xmenu.c (Fx_popup_dialog, xmenu_show, xdialog_show)
      (menu_help_callback, xmenu_show):
      * xml.c (make_dom):
      * xterm.c (set_wm_state):
      Prefer list1 (FOO) to Fcons (FOO, Qnil) when creating a list,
      and similarly for list2 through list5.
      6c6f1994
  3. 10 Jul, 2013 1 commit
    • Paul Eggert's avatar
      Port to C89. · 29abe551
      Paul Eggert authored
      * lib-src/ebrowse.c (USAGE): Remove macro with too-long string literal ...
      (usage_message): ... and replace it with this new static constant
      containing multiple literals.  All uses changed.
      * lib-src/emacsclient.c (print_help_and_exit):
      Rewrite to avoid string literals longer than the C89 limits.
      (start_daemon_and_retry_set_socket):
      Rewrite to avoid non-constant array initializer.
      * lib-src/make-docfile.c (enum global_type): Omit trailing comma.
      * src/bytecode.c (BYTE_CODE_THREADED): Do not define if __STRICT_ANSI__.
      (B__dummy__): New dummy symbol, to pacify C89.
      * src/dbusbind.c (XD_DEBUG_MESSAGE): Omit debugging on C89 hosts, since
      they can't grok varargs macros.
      * src/dispnew.c (add_window_display_history)
      (add_frame_display_history):
      * src/print.c (print_object):
      * src/xdisp.c (debug_method_add):
      Use %p printf format only for void pointers.
      * src/emacs.c (usage_message): New constant, replacing ...
      (USAGE1, USAGE2, USAGE3): Remove; they were too long for C89.
      (main): Adjust to usage reorg.
      * src/fns.c (syms_of_fns):
      * src/profiler.c (syms_of_profiler):
      Don't use non-constant struct initializers.
      * src/gnutls.h (gnutls_initstage_t):
      * src/lisp.h (enum Lisp_Fwd_Type):
      * src/lread.c (lisp_file_lexically_bound_p):
      * src/xsettings.c (anonymous enum):
      Remove trailing comma.
      * src/xsettings.c (apply_xft_settings): Use %f, not %lf; %lf is a C99ism.
      * src/lisp.h (ENUM_BF): Use unsigned if pedantic.
      (DEFUN_FUNCTION_INIT): New macro, that falls back on a cast if pre-C99.
      (DEFUN): Use it.
      * src/regex.c (const_re_char): New type, to pacify strict C89.
      All uses of 'const re_char' replaced to use it.
      * src/regex.h (_Restrict_): Rename from __restrict, to avoid clash
      with glibc when strict C89.  This change is imported from gnulib.
      All uses changed.
      (_Restrict_arr_): Rename from __restrict_arr, similarly.
      * src/sysdep.c (time_from_jiffies) [!HAVE_LONG_LONG_INT]:
      Omit GNU_LINUX implementation, since it requires long long.
      * src/xterm.c (x_draw_underwave):
      Do not assume the traditional order of struct's members.
      (x_term_init): Rewrite to avoid the need for non-constant structure
      initializers.
      29abe551
  4. 06 Jul, 2013 1 commit
    • Paul Eggert's avatar
      Use emacs_open more consistently when opening files. · 406af475
      Paul Eggert authored
      This handles EINTR more consistently now, and makes it easier
      to introduce other uniform changes to file descriptor handling.
      * src/systdio.h: New file.
      * src/buffer.c (mmap_init):
      * cygw32.c (chdir_to_default_directory):
      * dispnew.c (Fopen_termscript):
      * emacs.c (Fdaemon_initialized):
      * fileio.c (Fdo_auto_save):
      * image.c (slurp_file, png_load_body, jpeg_load_body):
      * keyboard.c (Fopen_dribble_file):
      * lread.c (Fload):
      * print.c (Fredirect_debugging_output):
      * sysdep.c (get_up_time, procfs_ttyname, procfs_get_total_memory):
      * termcap.c (tgetent):
      * unexaix.c, unexcoff.c (unexec, adjust_lnnoptrs):
      * unexcw.c, unexelf.c, unexhp9k800.c, unexmacosx.c (unexec):
      * w32term.c (w32_initialize) [CYGWIN]:
      * xfaces.c (Fx_load_color_file):
      Use emacs_open instead of plain open, and emacs_fopen instead of
      plain fopen.
      * dispnew.c, fileio.c, image.c, keyboard.c, lread.c, print.c, sysdep.c:
      * xfaces.c: Include sysstdio.h rather than stdio.h, for emacs_fopen.
      * callproc.c (default_output_mode): New constant.
      (Fcall_process): Use it to call emacs_open instead of plain creat.
      * dispnew.c (Fopen_termscript): Fix minor race in opening termscript.
      * sysdep.c (emacs_open): Add commentary and don't call file name "path".
      (emacs_fopen): New function.
      * unexaix.c, unexcoff.c, unexelf.c, unexhp9k800.c, unexmacosx.c:
      Include <lisp.h>, for emacs_open.
      * unexelf.c (fatal): Remove decl; not needed with <lisp.h> included.
      406af475
  5. 02 Apr, 2013 1 commit
    • Paul Eggert's avatar
      Prefer < to > in range checks such as 0 <= i && i < N. · 7216e43b
      Paul Eggert authored
      This makes it easier to visualize quantities on a number line.
      This patch doesn't apply to all such range checks,
      only to the range checks affected by the 2013-03-24 change.
      This patch reverts most of the 2013-03-24 change.
      * alloc.c (xpalloc, Fgarbage_collect):
      * ccl.c (ccl_driver, resolve_symbol_ccl_program):
      * character.c (string_escape_byte8):
      * charset.c (read_hex):
      * data.c (cons_to_unsigned):
      * dispnew.c (update_frame_1):
      * doc.c (Fsubstitute_command_keys):
      * doprnt.c (doprnt):
      * editfns.c (hi_time, decode_time_components):
      * fileio.c (file_offset):
      * fns.c (larger_vector, make_hash_table, Fmake_hash_table):
      * font.c (font_intern_prop):
      * frame.c (x_set_alpha):
      * gtkutil.c (get_utf8_string):
      * indent.c (check_display_width):
      * keymap.c (Fkey_description):
      * lisp.h (FIXNUM_OVERFLOW_P, vcopy):
      * lread.c (read1):
      * minibuf.c (read_minibuf_noninteractive):
      * process.c (wait_reading_process_output):
      * search.c (Freplace_match):
      * window.c (get_phys_cursor_glyph):
      * xdisp.c (redisplay_internal):
      * xsmfns.c (smc_save_yourself_CB):
      Prefer < to > for range checks.
      * dispnew.c (sit_for): Don't mishandle NaNs.
      This fixes a bug introduced in the 2013-03-24 change.
      * editfns.c (decode_time_components): Don't hoist comparison.
      This fixes another bug introduced in the 2013-03-24 change.
      7216e43b
  6. 28 Mar, 2013 1 commit
    • Dmitry Antipov's avatar
      * window.h (struct window): Replace hchild, vchild and buffer slots · e74aeda8
      Dmitry Antipov authored
      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.
      e74aeda8
  7. 24 Mar, 2013 1 commit
    • Andreas Schwab's avatar
      Reorder conditions that are written backwards · 908589fd
      Andreas Schwab authored
      * alloc.c (xpalloc, Fgarbage_collect): Reorder conditions that are
      written backwards.
      * blockinput.h (input_blocked_p): Likewise.
      * bytecode.c (exec_byte_code): Likewise.
      * callproc.c (call_process_kill, call_process_cleanup)
      (Fcall_process): Likewise.
      * ccl.c (ccl_driver, resolve_symbol_ccl_program)
      (Fccl_execute_on_string): Likewise.
      * character.c (string_escape_byte8): Likewise.
      * charset.c (read_hex): Likewise.
      * cm.c (calccost): Likewise.
      * data.c (cons_to_unsigned): Likewise.
      * dired.c (directory_files_internal, file_name_completion):
      Likewise.
      * dispnew.c (scrolling_window, update_frame_1, Fsleep_for)
      (sit_for): Likewise.
      * doc.c (Fsubstitute_command_keys): Likewise.
      * doprnt.c (doprnt): Likewise.
      * editfns.c (hi_time, decode_time_components, Fformat): Likewise.
      * emacsgtkfixed.c: Likewise.
      * fileio.c (file_offset, Fwrite_region): Likewise.
      * floatfns.c (Fexpt, fmod_float): Likewise.
      * fns.c (larger_vector, make_hash_table, Fmake_hash_table):
      Likewise.
      * font.c (font_intern_prop): Likewise.
      * frame.c (x_set_alpha): Likewise.
      * gtkutil.c (get_utf8_string): Likewise.
      * indent.c (check_display_width): Likewise.
      * intervals.c (create_root_interval, rotate_right, rotate_left)
      (split_interval_right, split_interval_left)
      (adjust_intervals_for_insertion, delete_node)
      (interval_deletion_adjustment, adjust_intervals_for_deletion)
      (merge_interval_right, merge_interval_left, copy_intervals)
      (set_intervals_multibyte_1): Likewise.
      * keyboard.c (gobble_input, append_tool_bar_item): Likewise.
      * keymap.c (Fkey_description): Likewise.
      * lisp.h (FIXNUM_OVERFLOW_P, vcopy): Likewise.
      * lread.c (openp, read_integer, read1, string_to_number):
      Likewise.
      * menu.c (ensure_menu_items): Likewise.
      * minibuf.c (read_minibuf_noninteractive): Likewise.
      * print.c (printchar, strout): Likewise.
      * process.c (create_process, Faccept_process_output)
      (wait_reading_process_output, read_process_output, send_process)
      (wait_reading_process_output): Likewise.
      * profiler.c (make_log, handle_profiler_signal): Likewise.
      * regex.c (re_exec): Likewise.
      * regex.h: Likewise.
      * search.c (looking_at_1, Freplace_match): Likewise.
      * sysdep.c (get_child_status, procfs_ttyname)
      (procfs_get_total_memory): Likewise.
      * systime.h (EMACS_TIME_VALID_P): Likewise.
      * term.c (dissociate_if_controlling_tty): Likewise.
      * window.c (get_phys_cursor_glyph): Likewise.
      * xdisp.c (init_iterator, redisplay_internal, redisplay_window)
      (try_window_reusing_current_matrix, try_window_id, pint2hrstr):
      Likewise.
      * xfns.c (Fx_window_property): Likewise.
      * xmenu.c (set_frame_menubar): Likewise.
      * xselect.c (x_get_window_property, x_handle_dnd_message):
      Likewise.
      * xsmfns.c (smc_save_yourself_CB): Likewise.
      * xterm.c (x_scroll_bar_set_handle): Likewise.
      908589fd
  8. 22 Mar, 2013 1 commit
    • Dmitry Antipov's avatar
      * frame.h (struct frame): Put menu_bar_window under #ifdef · 5a49b79c
      Dmitry Antipov authored
      because this member is not needed when X toolkit is in use.
      (fset_menu_bar_window):
      * dispnew.c (clear_current_matrices, clear_desired_matrices)
      (free_glyphs, update_frame):
      * xdisp.c (expose_frame): Likewise.
      (display_menu_bar): Likewise.  Remove redundant eassert.
      * window.h (WINDOW_MENU_BAR_P): Always define to 0 if X
      toolkit is in use.
      5a49b79c
  9. 20 Mar, 2013 1 commit
    • Dmitry Antipov's avatar
      * window.h (struct window): Convert left_col, top_line, total_lines · 5f24fa51
      Dmitry Antipov authored
      and total_cols from Lisp_Objects to integers.  Adjust comments.
      (wset_left_col, wset_top_line, wset_total_cols, wset_total_lines):
      Remove.
      (WINDOW_TOTAL_COLS, WINDOW_TOTAL_LINES, WINDOW_LEFT_EDGE_COL)
      (WINDOW_TOP_EDGE_LINE): Drop Lisp_Object to integer conversion.
      * dispnew.c, frame.c, w32fns.c, window.c, xdisp.c, xfns.c:
      Adjust users where appropriate.
      5f24fa51
  10. 17 Mar, 2013 1 commit
  11. 13 Mar, 2013 1 commit
    • Paul Eggert's avatar
      Static checking by Sun C 5.12. · d9df6f40
      Paul Eggert authored
      * lib-src/etags.c (analyse_regex): Omit unreachable code.
      * src/alloc.c (buffer_memory_full) [REL_ALLOC]:
      * src/bytecode.c (exec_byte_code):
      * src/dispnew.c (init_display):
      * src/eval.c (error):
      * src/fileio.c (Fsubstitute_in_file_name):
      * src/keyboard.c (Fevent_convert_list):
      * src/keymap.c (Fsingle_key_description):
      * src/term.c (maybe_fatal, fatal):
      * src/xfns.c (Fx_display_backing_store, Fx_display_visual_class):
      * src/xsmfns.c (Fhandle_save_session):
      Omit unreachable code.
      * src/keymap.c (map_keymap_char_table_item): Cast void * to
      a function pointer type; the C Standard requires this.
      d9df6f40
  12. 10 Mar, 2013 1 commit
    • Eli Zaretskii's avatar
      Use macros from dispextern.h where appropriate. · 138c0ae8
      Eli Zaretskii authored
       src/xdisp.c (display_tool_bar_line, redisplay_tool_bar)
       (redisplay_internal, set_cursor_from_row, try_window)
       (try_window_id, dump_glyph_row, extend_face_to_end_of_line)
       (display_line, notice_overwritten_cursor)
       (mouse_face_from_buffer_pos, note_mouse_highlight): Use
       MATRIX_ROW_DISPLAYS_TEXT_P.
       (note_mouse_highlight): Use MATRIX_ROW_GLYPH_START.
       (mouse_face_from_string_pos, fast_find_string_pos): Use
       MATRIX_ROW_VPOS.
       src/xfns.c (Fx_show_tip): Use MATRIX_ROW_DISPLAYS_TEXT_P.
       src/w32fns.c (Fx_show_tip): Use MATRIX_ROW_DISPLAYS_TEXT_P.
       src/xdisp.c (try_cursor_movement): Use MATRIX_ROW and
       MATRIX_MODE_LINE_ROW.
       src/dispnew.c (update_window): Use MATRIX_ROW and MATRIX_MODE_LINE_ROW.
      138c0ae8
  13. 13 Feb, 2013 1 commit
    • Paul Eggert's avatar
      Minor getenv-related fixes. · 83be8524
      Paul Eggert authored
      * callproc.c (Fcall_process_region) [!DOS_NT]:
      Avoid unnecessary duplicate call to getenv.
      * callproc.c (init_callproc):
      * dispnew.c (init_display):
      * sysdep.c (sys_subshell):
      Omit unnecessary cast of getenv or egetenv.
      83be8524
  14. 28 Jan, 2013 1 commit
  15. 23 Jan, 2013 1 commit
    • Stefan Monnier's avatar
      * src/xdisp.c (message2, message2_nolog): Remove functions. · b09cca6a
      Stefan Monnier authored
      (message3, message3_nolog): Extract nbytes and multibyteness directly
      from the string.  Change all callers.
      (message3_nolog): Don't set message_enable_multibyte since set_message
      will reset it anyway.
      (message1, message1_nolog): Use message3.
      (vmessage): Use a stack allocated buffer rather than f->message_buf.
      (with_echo_area_buffer): Remove last two arguments.  Update all callers.
      (set_message): Drop all but the second arg, which has to be a string.
      (set_message_1): Simplify now that we know that a1 is NULL and the
      second arg is a string.
      * src/frame.h (struct frame): Remove `message_buf' field.
      Use glyphs_initialized_p instead.
      (FRAME_MESSAGE_BUF): Remove macro.
      * src/w16select.c (Fw16_set_clipboard_data): Prefer message3 to message2.
      * src/lisp.h (message2, message2_nolog): Remove declarations.
      (message3, message3_nolog): Update declarations.
      * src/keyboard.c (read_char_minibuf_menu_text)
      (read_char_minibuf_menu_width): Remove vars.
      (read_char_minibuf_menu_prompt): Rewrite the menu's construction so as
      to correctly handle multibyte strings.
      * src/frame.c (delete_frame): Don't free message_buf any more.
      * src/editfns.c (message_text, message_length): Remove vars.
      (Fmessage_box): Don't copy the Lisp string's bytes any longer.
      * src/fileio.c (auto_save_error): Use message3 instead of message2.
      * src/dispnew.c (adjust_frame_message_buffer): Remove function.
      b09cca6a
  16. 22 Jan, 2013 1 commit
    • Dmitry Antipov's avatar
      * window.h (struct window): Change window_end_valid member from · 9d93ce29
      Dmitry Antipov authored
      Lisp_Object to a bitfield.  Adjust comments.
      (wset_window_end_valid): Remove.
      * window.c (adjust_window_count): Clear window_end_valid.
      (Fwindow_end): Adjust user.  Remove ancient #if 0 code.
      (Fwindow_line_height, set_window_buffer, Frecenter)
      (Fsplit_window_internal, Fdelete_other_windows_internal)
      (Fset_window_fringes, Fset_window_scroll_bars): Adjust users.
      * dispnew.c (adjust_glyph_matrix, clear_window_matrices): Likewise.
      * xdisp.c (check_window_end, reconsider_clip_changes)
      (redisplay_internal, mark_window_display_accurate_1, redisplay_window)
      (try_window, try_window_reusing_current_matrix, note_mouse_highlight)
      (find_first_unchanged_at_end_row, try_window_id): Likewise.
      9d93ce29
  17. 01 Jan, 2013 1 commit
  18. 14 Dec, 2012 1 commit
    • Paul Eggert's avatar
      Spelling fixes. · cccaebd2
      Paul Eggert authored
      My favorite was that the word "dictionary" was misspelled.
      Also, correct the title in the DeRemer & Pennello 1982 citation,
      and add a URL.
      cccaebd2
  19. 12 Dec, 2012 1 commit
  20. 13 Nov, 2012 1 commit
    • Dmitry Antipov's avatar
      Omit glyphs initialization at startup. · 2a14f83b
      Dmitry Antipov authored
      * dispnew.c (glyphs_initialized_initially_p): Remove.
      (adjust_frame_glyphs_initially): Likewise.  Adjust users.
      (Fredraw_frame): Move actual code from here...
      (redraw_here): ...to here.  Add eassert.  Adjust comment.
      (Fredraw_display): Use redraw_frame.
      * xdisp.c (clear_garbaged_frames): Likewise.
      2a14f83b
  21. 06 Nov, 2012 1 commit
    • Dmitry Antipov's avatar
      Widely used frame validity and checking functions. · d9f07150
      Dmitry Antipov authored
      * frame.h (decode_live_frame, decode_any_frame): Add prototypes.
      * frame.c (decode_live_frame, decode_any_frame): New functions.
      (delete_frame, Fredirect_frame_focus, Fframe_parameters)
      (Fframe_parameter, Fframe_char_height, Fframe_char_width)
      (Fframe_pixel_height, Fframe_pixel_width, Ftool_bar_pixel_width)
      (Fframe_pointer_visible_p): Use decode_any_frame.
      (Fmake_frame_visible, Fmake_frame_invisible, Ficonify_frame)
      (Fraise_frame, Flower_frame, Fmodify_frame_parameters)
      (Fset_frame_height, Fset_frame_width): Use decode_live_frame.
      (Fframe_focus): Likewise.  Allow zero number of arguments.
      Adjust docstring.
      (frame_buffer_list, frame_buffer_predicate): Remove.
      * lisp.h (frame_buffer_predicate): Remove prototype.
      * buffer.c (Fother_buffer): Use decode_any_frame.
      * xdisp.c (Ftool_bar_lines_needed): Likewise.
      * xfaces.c (Fcolor_gray_p, Fcolor_supported_p): Likewise.
      * font.c (Ffont_face_attributes, Ffont_family_list, Fopen_font)
      (Fclose_font, Ffont_info): Use decode_live_frame.
      * fontset.c (check_fontset_name): Likewise.
      * terminal.c (Fframe_terminal): Likewise.
      * w32fns.c (check_x_frame): Likewise.
      * window.c (Fminibuffer_window, Fwindow_at)
      (Fcurrent_window_configuration): Likewise.
      (Frun_window_configuration_change_hook, Fwindow_resize_apply):
      Likewise.  Allow zero number of arguments.  Adjust docstring.
      * dispnew.c (Fredraw_frame): Likewise.
      * xfaces.c (frame_or_selected_frame): Remove.
      (Fx_list_fonts, Finternal_get_lisp_face_attribute, Fface_font)
      (Finternal_lisp_face_equal_p, Finternal_lisp_face_empty_p)
      (Fframe_face_alist): Use decode_live_frame.
      * xfns.c (check_x_frame): Likewise.
      d9f07150
  22. 05 Nov, 2012 1 commit
    • Paul Eggert's avatar
      Simplify by assuming __fpending. · 8148369c
      Paul Eggert authored
      Now that Emacs is using the gnulib fpending module,
      there's no need for Emacs to have a separate implementation.
      * configure.ac (stdio_ext.h, __fpending): Remove now-duplicate checks.
      (PENDING_OUTPUT_COUNT, DISPNEW_NEEDS_STDIO_EXT): Remove.
      * admin/CPP-DEFINES (PENDING_OUTPUT_COUNT): Remove.
      * src/dispnew.c: Include <fpending.h>, not <stdio_ext.h>.
      (update_frame_1): Use __fpending, not PENDING_OUTPUT_COUNT.
      Do not assume that __fpending's result fits in int.
      8148369c
  23. 04 Nov, 2012 1 commit
    • Paul Eggert's avatar
      Remove EMACS_OUTQSIZE+sleep hack. · 06b63c9b
      Paul Eggert authored
      * dispnew.c (update_frame_1): Remove hack for terminals slower
      than 2400 bps, which throttled Emacs by having it sleep.  This
      code hasn't worked since at least 2007, when the multi-tty stuff
      was added, and anyway those old terminals are long dead.
      * systty.h (EMACS_OUTQSIZE): Remove; unused.  The macro isn't used even
      without the dispnew.c change, as dispnew.c doesn't include systty.h.
      06b63c9b
  24. 02 Nov, 2012 1 commit
    • Dmitry Antipov's avatar
      Window-related stuff cleanup here and there. · b9e9df47
      Dmitry Antipov authored
      * dispnew.c (Finternal_show_cursor, Finternal_show_cursor_p):
      Use decode_any_window.
      * fringe.c (Ffringe_bitmaps_at_pos): Likewise.
      * xdisp.c (Fformat_mode_line): Likewise.
      * font.c (Ffont_at): Use decode_live_window.
      * indent.c (Fcompute_motion, Fvertical_motion): Likewise.
      * window.c (decode_next_window_args): Likewise.
      (decode_any_window): Remove static.
      * window.h (decode_any_window): Add prototype.
      * lisp.h (CHECK_VALID_WINDOW, CHECK_LIVE_WINDOW): Move from here...
      * window.h: ...to here, redefine via WINDOW_VALID_P and WINDOW_LIVE_P,
      respectively.
      b9e9df47
  25. 31 Oct, 2012 1 commit
    • Paul Eggert's avatar
      Fix crash when using Emacs as commit editor for git. · 322aea6d
      Paul Eggert authored
      * callproc.c (setpgrp): Remove macro, as we now use setpgid
      and it is configured in conf_post.h.
      (Fcall_process): Don't invoke both setsid and setpgid; the former
      is enough, if it exists.
      * callproc.c (Fcall_process, child_setup):
      * process.c (create_process): Use setpgid.
      * conf_post.h (setpgid) [!HAVE_SETPGID]: New macro, which substitutes
      for the real thing.
      * dispnew.c (init_display): Initialize the foreground group
      if we are running a tty display.
      * emacs.c (main): Do not worry about setpgrp; init_display does it now.
      * lisp.h (init_foreground_group): New decl.
      * sysdep.c (inherited_pgroup): New static var.
      (init_foreground_group, tcsetpgrp_without_stopping)
      (narrow_foreground_group, widen_foreground_group): New functions.
      (init_sys_modes): Narrow foreground group.
      (reset_sys_modes): Widen foreground group.
      
      Fixes: debbugs:12697
      322aea6d
  26. 17 Oct, 2012 1 commit
    • Eli Zaretskii's avatar
      Fix warnings when compiling on MS-Windows with -std=gnu99. · a68089e4
      Eli Zaretskii authored
       src/makefile.w32-in ($(BLD)/w32.$(O)): 
       ($(BLD)/vm-limit.$(O)): 
       ($(BLD)/term.$(O)): 
       ($(BLD)/unexw32.$(O)): 
       ($(BLD)/fileio.$(O)): 
       ($(BLD)/dispnew.$(O)): Update dependencies.
       src/w32term.h (w32_initialize_display_info, initialize_w32_display):
       Add prototypes.
       src/w32proc.c: Include ctype.h.
       src/w32.h (init_environment, check_windows_init_file)
       (syms_of_ntproc, syms_of_ntterm, dostounix_filename)
       (unixtodos_filename, init_winsock, srandom, random, sys_pipe)
       (set_process_dir, sys_spawnve, register_child, sys_sleep, getwd)
       (sys_link): Add prototypes.
       src/w32.c: Include w32select.h.
       (sys_access, e_malloc, sys_select): Add prototypes.
       (emacs_gnutls_pull): 'timeout' is now EMACS_TIME, not struct timeval.
       src/vm-limit.c [WINDOWSNT]: Include w32heap.h.
       src/unexw32.c: Include lisp.h and w32.h.
       src/term.c [WINDOWSNT]: Include w32term.h.
       src/process.c [WINDOWSNT]: Add prototype of sys_select.
       src/fileio.c [WINDOWSNT]: Include w32.h.
       src/dispnew.c [WINDOWSNT]: Include w32.h.
      
       nt/inc/pwd.h (getuid, geteuid): Add prototypes.
       nt/inc/ms-w32.h (sys_wait, _getpid, gmtgime_r, localtime_r)
       (signal_handler, sys_signal, sigemptyset, sigfillset, sigprocmask)
       (pthread_sigmask, sigismember, setpgrp, sigaction, alarm)
       (sys_kill, getpagesize): Add prototypes for emulated functions.
       nt/inc/grp.h (getgid, getegid): Add prototypes.
       nt/gmake.defs (DEBUG_CFLAGS) [NOOPT]: Add -std=gnu99.
       nt/configure.bat (chkapiN): Avoid compiler warning in junk.c when
       compiling with -std=gnu99.
       nt/config.nt (CHECK_LISP_OBJECT_TYPE): Don't undef, so that it
       could be used via --cflags switch to configure.bat.
      a68089e4
  27. 10 Oct, 2012 2 commits
    • Paul Eggert's avatar
      keyboard.c, keymap.c: Use bool for booleans. · 9fa1de30
      Paul Eggert authored
      * dispnew.c (sit_for): Distinguish between 3-way display_option
      and boolean do_display.
      * keyboard.c (single_kboard, this_command_key_count_reset)
      (waiting_for_input, echoing, immediate_quit, input_pending)
      (interrupt_input, interrupts_deferred, pop_kboard)
      (temporarily_switch_to_single_kboard, ignore_mouse_drag_p)
      (command_loop_1, adjust_point_for_property)
      (safe_run_hooks_error, input_polling_used, read_char):
      (help_char_p, readable_events, kbd_buffer_events_waiting)
      (kbd_buffer_get_event, timer_check_2, make_lispy_event)
      (lucid_event_type_list_p, get_input_pending):
      (gobble_input, menu_separator_name_p, menu_bar_item)
      (parse_menu_item, parse_tool_bar_item, read_char_x_menu_prompt)
      (read_char_minibuf_menu_prompt, access_keymap_keyremap)
      (keyremap_step, test_undefined, read_key_sequence)
      (detect_input_pending, detect_input_pending_ignore_squeezables)
      (detect_input_pending_run_timers, requeued_events_pending_p)
      (quit_throw_to_read_char, Fset_input_interrupt_mode):
      * keymap.c (get_keymap, keymap_parent, keymap_memberp)
      (access_keymap_1, access_keymap, map_keymap, get_keyelt)
      (Fdefine_key, Flookup_key, struct accessible_keymaps_data)
      (accessible_keymaps_1, Fkey_description, push_key_description):
      (shadow_lookup, struct where_is_internal_data)
      (where_is_internal, Fwhere_is_internal, where_is_internal_1)
      (Fdescribe_buffer_bindings, describe_map_tree, struct describe_map_elt)
      (describe_map, describe_vector):
      * menu.c (single_menu_item):
      * nsmenu.m (ns_update_menubar):
      * process.c (wait_reading_process_output):
      * search.c (scan_buffer, scan_newline):
      Use bool for boolean.
      * keyboard.c (timers_run, swallow_events)
      (detect_input_pending_run_timers):
      * process.c (wait_reading_process_output):
      Use unsigned for counter where wraparound-on-overflow is desired,
      since unsigned is guaranteed to have that behavior and signed is not.
      (read_char): Use ptrdiff_t for string length.
      (get_input_pending): Remove first argument, since it was always
      the same pointer-to-int (now pointer-to-boolean) &input_pending,
      and behave as if it had that value.  Return new value of
      input_pending.  All callers changed.
      * keyboard.h (struct kboard): Use unsigned : 1 for boolean member
      immediate_echo.  Use ptrdiff_t for echo_after_prompt, since it's
      a string length.
      * keymap.c (push_key_description): Omit last arg, which was always 1.
      All callers changed.
      9fa1de30
    • Paul Eggert's avatar
      Clean out old termopts cruft. · 5f3f57be
      Paul Eggert authored
      * termopts.h (flow_control, meta_key): Remove unused decls.
      * dispnew.c, indent.c, nsterm.m, term.c, xsettings.c, xsmfns.c:
      Don't include termopts.h.
      5f3f57be
  28. 01 Oct, 2012 1 commit
    • Paul Eggert's avatar
      Prefer plain 'static' to 'static inline'. · b0ab8123
      Paul Eggert authored
      With static functions, modern compilers inline pretty well by
      themselves; advice from programmers often hurts as much as it helps.
      On my host (x86-64, Fedora 17, GCC 4.7.2, default 'configure'),
      this change shrinks the text size of the Emacs executable by 1.1%
      without affecting CPU significantly in my benchmark.
      * alloc.c (mem_find, live_string_p, live_cons_p, live_symbol_p)
      (live_float_p, live_misc_p, live_vector_p, live_buffer_p)
      (mark_maybe_object, mark_maybe_pointer, bounded_number):
      * buffer.c (bset_abbrev_mode, bset_abbrev_table)
      (bset_auto_fill_function, bset_auto_save_file_format)
      (bset_auto_save_file_name, bset_backed_up, bset_begv_marker)
      (bset_bidi_display_reordering, bset_buffer_file_coding_system)
      (bset_cache_long_line_scans, bset_case_fold_search)
      (bset_ctl_arrow, bset_cursor_in_non_selected_windows)
      (bset_cursor_type, bset_display_table, bset_extra_line_spacing)
      (bset_file_format, bset_file_truename, bset_fringe_cursor_alist)
      (bset_fringe_indicator_alist, bset_fringes_outside_margins)
      (bset_header_line_format, bset_indicate_buffer_boundaries)
      (bset_indicate_empty_lines, bset_invisibility_spec)
      (bset_left_fringe_width, bset_major_mode, bset_mark)
      (bset_minor_modes, bset_mode_line_format, bset_mode_name)
      (bset_name, bset_overwrite_mode, bset_pt_marker)
      (bset_right_fringe_width, bset_save_length)
      (bset_scroll_bar_width, bset_scroll_down_aggressively)
      (bset_scroll_up_aggressively, bset_selective_display)
      (bset_selective_display_ellipses, bset_vertical_scroll_bar_type)
      (bset_word_wrap, bset_zv_marker, set_buffer_overlays_before)
      (set_buffer_overlays_after):
      * category.c (bset_category_table):
      * charset.c (read_hex):
      * coding.c (produce_composition, produce_charset)
      (handle_composition_annotation, handle_charset_annotation)
      (char_encodable_p):
      * dispnew.c (swap_glyph_pointers, copy_row_except_pointers)
      (assign_row, set_frame_matrix_frame, make_current)
      (add_row_entry):
      * eval.c (set_specpdl_symbol, set_specpdl_old_value):
      * fns.c (maybe_resize_hash_table):
      * frame.c (fset_buffer_predicate, fset_minibuffer_window):
      * gmalloc.c (register_heapinfo):
      * image.c (lookup_image_type):
      * intervals.c (set_interval_object, set_interval_left)
      (set_interval_right, copy_interval_parent, rotate_right)
      (rotate_left, balance_possible_root_interval):
      * keyboard.c (kset_echo_string, kset_kbd_queue)
      (kset_keyboard_translate_table, kset_last_prefix_arg)
      (kset_last_repeatable_command, kset_local_function_key_map)
      (kset_overriding_terminal_local_map, kset_real_last_command)
      (kset_system_key_syms, clear_event, set_prop):
      * lread.c (digit_to_number):
      * marker.c (attach_marker, live_buffer, set_marker_internal):
      * nsterm.m (ns_compute_glyph_string_overhangs):
      * process.c (pset_buffer, pset_command)
      (pset_decode_coding_system, pset_decoding_buf)
      (pset_encode_coding_system, pset_encoding_buf, pset_filter)
      (pset_log, pset_mark, pset_name, pset_plist, pset_sentinel)
      (pset_status, pset_tty_name, pset_type, pset_write_queue):
      * syntax.c (bset_syntax_table, dec_bytepos):
      * terminal.c (tset_param_alist):
      * textprop.c (interval_has_some_properties)
      (interval_has_some_properties_list):
      * window.c (wset_combination_limit, wset_dedicated)
      (wset_display_table, wset_hchild, wset_left_fringe_width)
      (wset_left_margin_cols, wset_new_normal, wset_new_total)
      (wset_normal_cols, wset_normal_lines, wset_parent, wset_pointm)
      (wset_right_fringe_width, wset_right_margin_cols)
      (wset_scroll_bar_width, wset_start, wset_temslot, wset_vchild)
      (wset_vertical_scroll_bar_type, wset_window_parameters):
      * xdisp.c (wset_base_line_number, wset_base_line_pos)
      (wset_column_number_displayed, wset_region_showing)
      (window_box_edges, run_window_scroll_functions)
      (append_glyph_string_lists, prepend_glyph_string_lists)
      (append_glyph_string, set_glyph_string_background_width)
      (append_glyph, append_composite_glyph)
      (take_vertical_position_into_account):
      * xfaces.c (x_create_gc, x_free_gc, merge_face_vectors)
      (face_attr_equal_p, lface_equal_p, hash_string_case_insensitive)
      (lface_hash, lface_same_font_attributes_p, lookup_face):
      * xml.c (libxml2_loaded_p):
      * xterm.c (x_set_mode_line_face_gc, x_set_glyph_string_gc)
      (x_set_glyph_string_clipping, x_clear_glyph_string_rect):
      Now 'static', not 'static inline'.
      
      Fixes: debbugs:12541
      b0ab8123
  29. 23 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Simplify and avoid signal-handling races. · 4d7e6e51
      Paul Eggert authored
      * 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
      4d7e6e51
  30. 20 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Omit unused arg EXPECTED from socket hooks. · f75beb47
      Paul Eggert authored
      * keyboard.c (gobble_input, read_avail_input, tty_read_avail_input):
      * nsterm.m (ns_term_init):
      * termhooks.h (struct terminal.read_socket_hook):
      * w32inevt.c (w32_console_read_socket):
      * w32term.c (w32_read_socket):
      * xterm.c (XTread_socket):
      Omit unused arg EXPECTED.  All callers changed.
      (store_user_signal_events): Return void, not int, since callers no
      longer care about the return value.  All uses changed.
      f75beb47
  31. 15 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Port better to POSIX hosts lacking _setjmp. · 0328b6de
      Paul Eggert authored
      * configure.ac (HAVE__SETJMP, HAVE_SIGSETJMP): New symbols.
      (_setjmp, _longjmp): Remove.
      * src/lisp.h: Include <setjmp.h> here, since we use its symbols here.
      All instances of '#include <setjmp.h>' removed, if the
      only reason for the instance was because "lisp.h" was included.
      (sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols.
      Unless otherwise specified, replace all uses of jmp_buf, _setjmp,
      and _longjmp with the new symbols.  Emacs already uses _setjmp if
      available, so this change affects only POSIXish hosts that have
      sigsetjmp but not _setjmp, such as some versions of Solaris and
      Unixware.  (Also, POSIX-2008 marks _setjmp as obsolescent.)
      * src/image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros.
      (png_load_body) [HAVE_PNG]:
      (PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]:
      (PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]:
      Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp,
      since PNG requires jmp_buf.  This is the only exception to the
      general rule that we now use sys_setjmp and sys_longjmp.
      This exception is OK since this code does not change the signal
      mask or longjmp out of a signal handler.
      
      Fixes: debbugs:12446
      0328b6de
  32. 13 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Simplify SIGIO usage. · 4a4bbad2
      Paul Eggert authored
      The code that dealt with SIGIO was crufty and confusing, e.g., it
      played tricks like "#undef SIGIO" but these tricks were not used
      consistently.  Simplify mostly by not #undeffing standard symbols,
      e.g., use "defined USABLE_SIGIO" (our symbol, which we can define
      or not as we please) rather than "defined SIGIO" (standard symbol
      that we probably shouldn't #undef).
      * configure.ac (NO_TERMIO, BROKEN_FIONREAD, BROKEN_SIGAIO)
      (BROKEN_SIGPOLL, BROKEN_SIGPTY): Remove.
      (USABLE_FIONREAD, USABLE_SIGIO): New symbols.  All uses of
      'defined SIGIO' replaced with 'defined USABLE_SIGIO', with no need
      to #undef SIGIO now (which was error-prone).  Likewise, all uses
      of 'defined FIONREAD' replaced with 'defined USABLE_FIONREAD'.
      * src/admin/CPP_DEFINES (BROKEN_SIGAIO, BROKEN_SIGIO, BROKEN_SIGPOLL)
      (BROKEN_SIGPTY, NO_TERMIO): Remove.
      * src/conf_post.h [USG5_4]: Do not include <sys/wait.h> here.
      Modules that need it can include it.
      [USG5_4 && emacs]: Likewise, do not include the streams stuff here.
      * src/dispextern.h (ignore_sigio): New decl.
      * src/emacs.c (shut_down_emacs): Invoke unrequest_sigio
      unconditionally, since it's now a no-op if !USABLE_SIGIO.
      * src/emacs.c (shut_down_emacs):
      * src/keyboard.c (kbd_buffer_store_event_hold):
      Use ignore_sigio rather than invoking 'signal' directly.
      * src/keyboard.c (USABLE_FIONREAD && USG5_4): Include <sys/filio.h>,
      for FIONREAD.
      (FIONREAD, SIGIO): Do not #undef.
      (tty_read_avail_input): Use #error rather than a syntax error.
      * src/process.c [USG5_4]: Include <sys/stream.h> and <sys/stropts.h>,
      for I_PIPE, used by SETUP_SLAVE_PTY.
      (DATAGRAM_SOCKETS): Simplify defn, based on USABLE_FIONREAD.
      * src/sysdep.c (croak): Remove; no longer needed.  This bit of
      temporary code, with Fred N. Fish's comment that it's temporary,
      has been in Emacs since at least 1992!
      (init_sigio, reset_sigio, request_sigio, unrequest_sigio):
      Arrange for them to be no-ops in all cases when ! USABLE_SIGIO.
      * src/syssignal.h (croak): Remove decl.
      (SIGIO, SIGPOO, SIGAIO, SIGPTY): Do not #undef; that's too fragile.
      * src/systty.h [!NO_TERMIO]: Do not include <termio.h>; no longer needed
      now that we're termios-only.
      (FIONREAD, ASYNC) [BROKEN_FIONREAD]: Do not #undef.
      * src/term.c (dissociate_if_controlling_tty): Use #error rather than
      a run-time error.
      
      Fixes: debbugs:12408
      4a4bbad2
  33. 09 Sep, 2012 1 commit
  34. 07 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Signal-handler cleanup. · 2fe28299
      Paul Eggert authored
      Emacs's signal handlers were written in the old 4.2BSD style with
      sigblock and sigmask and so forth, and this led to some
      inefficiencies and confusion.  Rewrite these to use
      pthread_sigmask etc. without copying signal sets around.  Also,
      get rid of the confusing macros 'SIGNAL_THREAD_CHECK' and
      'signal', and instead use functions that do not attempt to take
      over the system name space.  This patch causes Emacs's text
      segment to shrink by 0.7% on my platform, Fedora 17 x86-64.
      * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
      Adjust to syssignal.h changes.
      (SIGNAL_H_AB): Remove; no longer needed.
      * src/alloc.c, src/emacsgtkfixed.c, src/nsfns.m, src/widget.c, src/xmenu.c:
      Do not include <signal.h> or "syssignal.h", as these
      modules do not use signals.
      * src/atimer.c, src/callproc.c, src/data.c, src/dispnew.c, src/emacs.c:
      * src/floatfns.c, src/gtkutil.c, src/keyboard.c, src/process.c, src/sound.c:
      * src/sysdep.c, src/term.c, src/xterm.c:
      Do not include <signal.h>, as "syssignal.h" does that for us now.
      * src/atimer.c (sigmask_atimers): New function.
      (block_atimers, unblock_atimers): New functions,
      replacing the old macros BLOCK_ATIMERS and UNBLOCK_ATIMERS.
      All uses replaced.
      * src/conf_post.h [SIGNAL_H_AHB]: Do not include <signal.h>;
      no longer needed here.
      * src/emacs.c (main): Inspect existing signal handler with sigaction,
      so that there's	no need to block and unblock SIGHUP.
      * src/sysdep.c (struct save_signal): New member 'action', replacing
      old member 'handler'.
      (save_signal_handlers, restore_signal_handlers):
      Use sigaction instead of 'signal' to save and restore.
      (get_set_sighandler, set_sighandler) [!WINDOWSNT]:
      New function.  All users of 'signal' modified to use set_sighandler
      if they're writeonly, and to use sys_signal if they're read+write.
      (emacs_sigaction_init, forwarded_signal): New functions.
      (sys_signal): Remove.  All uses replaced by calls to sigaction
      and emacs_sigaction_init, or by direct calls to 'signal'.
      (sys_sigmask) [!__GNUC__]: Remove; no longer needed.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove;
      all uses replaced by pthread_sigmask etc. calls.
      * src/syssignal.h: Include <signal.h>.
      (emacs_sigaction_init, forwarded_signal): New decls.
      (SIGMASKTYPE): Remove.  All uses replaced by its definiens, sigset_t.
      (SIGEMPTYMASK): Remove; all uses replaced by its definiens, empty_mask.
      (sigmask, sys_sigmask): Remove; no longer needed.
      (sigpause): Remove.  All uses replaced by its definiens, sigsuspend.
      (sigblock, sigunblock, sigfree):
      (sigsetmask) [!defined sigsetmask]:
      Remove.  All uses replaced by pthread_sigmask.
      (signal): Remove.  Its remaining uses (with SIG_DFL and SIG_IGN)
      no longer need to be replaced, and its typical old uses
      are now done via emacs_sigaction_init and sigaction.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove decls.
      (sys_sigdel): Remove; unused.
      (NSIG): Remove a FIXME; the code's fine.  Remove an unnecessary ifdef.
      
      Fixes: debbugs:12327
      2fe28299
  35. 05 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Fix race conditions with signal handlers and errno. · 20ef56db
      Paul Eggert authored
      Be more systematic about preserving errno whenever a signal
      handler returns, even if it's not in the main thread.  Do this by
      renaming signal handlers to distinguish between signal delivery
      and signal handling.  All uses changed.
      * atimer.c (deliver_alarm_signal): Rename from alarm_signal_handler.
      * data.c (deliver_arith_signal): Rename from arith_error.
      * dispnew.c (deliver_window_change_signal): Rename from
      window_change_signal.
      * emacs.c (deliver_error_signal): Rename from fatal_error_signal.
      (deliver_danger_signal) [SIGDANGER]: Rename from memory_warning_signal.
      * keyboard.c (deliver_input_available_signal): Rename from
      input_available_signal.
      (deliver_user_signal): Rename from handle_user_signal.
      (deliver_interrupt_signal): Rename from interrupt_signal.
      * process.c (deliver_pipe_signal): Rename from send_process_trap.
      (deliver_child_signal): Rename from sigchld_handler.
      * atimer.c (handle_alarm_signal):
      * data.c (handle_arith_signal):
      * dispnew.c (handle_window_change_signal):
      * emacs.c (handle_fatal_signal, handle_danger_signal):
      * keyboard.c (handle_input_available_signal):
      * keyboard.c (handle_user_signal, handle_interrupt_signal):
      * process.c (handle_pipe_signal, handle_child_signal):
      New functions, with the actual signal-handling code taken from the
      original respective signal handlers, sans the sporadic attempts to
      preserve errno, since that's now done by handle_on_main_thread.
      * atimer.c (alarm_signal_handler): Remove unnecessary decl.
      * emacs.c, floatfns.c, lisp.h: Remove unused FLOAT_CATCH_SIGKILL cruft.
      * emacs.c (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]:
      Move to sysdep.c.
      (main) [FORWARD_SIGNAL_TO_MAIN_THREAD]:
      Move initialization of main_thread to sysdep.c's init_signals.
      * process.c (waitpid) [!WNOHANG]: #define to wait; that's good enough for
      our usage, and simplifies the mainline code.
      (record_child_status_change): New static function, as a helper
      for handle_child_signal, and with most of the old child handler's
      contents.
      (CAN_HANDLE_MULTIPLE_CHILDREN): New constant.
      (handle_child_signal): Use the above.
      * sysdep.c (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]:
      Moved here from emacs.c.
      (init_signals) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Initialize it;
      code moved here from emacs.c's main function.
      * sysdep.c, syssignal.h (handle_on_main_thread): New function,
      replacing the old SIGNAL_THREAD_CHECK.  All uses changed.  This
      lets callers save and restore errno properly.
      20ef56db
  36. 04 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Simplify redefinition of 'abort' (Bug#12316). · 1088b922
      Paul Eggert authored
      Do not try to redefine the 'abort' function.  Instead, redo
      the code so that it calls 'emacs_abort' rather than 'abort'.
      This removes the need for the NO_ABORT configure-time macro
      and makes it easier to change the abort code to do a backtrace.
      * configure.ac (NO_ABRT): Remove.
      * admin/CPP-DEFINES (NO_ABORT): Remove.
      * nt/inc/ms-w32.h (w32_abort) [HAVE_NTGUI]: Remove.
      * src/.gdbinit: Just stop at emacs_abort, not at w32_abort or abort.
      * src/emacs.c (abort) [!DOS_NT && !NO_ABORT]:
      Remove; sysdep.c's emacs_abort now takes its place.
      * src/lisp.h (emacs_abort): New decl.  All calls from Emacs code to
      'abort' changed to use 'emacs_abort'.
      * src/msdos.c (dos_abort) [defined abort]: Remove; not used.
      (abort) [!defined abort]: Rename to ...
      (emacs_abort): ... new name.
      * src/sysdep.c (emacs_abort) [!HAVE_NTGUI]: New function, taking
      the place of the old 'abort' in emacs.c.
      * src/w32.c, src/w32fns.c (abort): Do not #undef.
      * src/w32.c (emacs_abort): Rename from w32_abort.
      1088b922
  37. 01 Sep, 2012 1 commit
    • Daniel Colascione's avatar
      Refactor window-system configuration · 17a2cbbd
      Daniel Colascione authored
      This change streamlines the window system selection code in
      configure.in and moves many common function declarations from
      window-specific headers to frame.h.  It introduces a new TERM_HEADER
      macro in config.h: we set this macro to the right header to use for
      the window system for which we're compiling Emacs and have source
      files include it indirectly.  This way, we don't have to teach every
      file about every window system.
      17a2cbbd
  38. 30 Aug, 2012 1 commit