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* * process.c (wait_reading_process_output): Revert previous change.Chong Yidong2012-11-051-7/+9
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* Assume at least POSIX.1-1988 for getpgrp, setpgid, setsid.Paul Eggert2012-11-041-16/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | This removes code that has been obsolete since around 1990. * admin/CPP-DEFINES (HAVE_SETPGID, HAVE_SETSID, SETPGRP_RELEASES_CTTY): Remove; obsolete. * configure.ac (setpgid, setsid): Assume their existence. (AC_FUNC_GETPGRP, SETPGRP_RELEASES_CTTY): Remove; obsolete. * src/callproc.c (Fcall_process): * src/emacs.c (main): * src/process.c (create_process): * src/term.c (dissociate_if_controlling_tty): Assume setsid exists. * src/callproc.c (child_setup): Assume setpgid exists and behaves as per POSIX.1-1988 or later. * src/conf_post.h (setpgid) [!HAVE_SETPGID]: Remove. * src/emacs.c (shut_down_emacs): * src/sysdep.c (sys_suspend, init_foreground_group): Assume getpgrp behaves as per POSIX.1-1998 or later. * src/msdos.c (setpgrp): Remove. (tcgetpgrp, setpgid, setsid): New functions. * src/systty.h (EMACS_GETPGRP): Remove. All callers now use getpgrp. * src/term.c (no_controlling_tty): Remove; unused. * src/w32proc.c (setpgrp): Remove. (setsid, tcgetpgrp): New functions. Fixes: debbugs:12800
* Fix a race condition that causes Emacs to mess up glib.Paul Eggert2012-11-031-95/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The symptom is a diagnostic "GLib-WARNING **: In call to g_spawn_sync(), exit status of a child process was requested but SIGCHLD action was set to SIG_IGN and ECHILD was received by waitpid(), so exit status can't be returned." The diagnostic is partly wrong, as the SIGCHLD action is not set to SIG_IGN. The real bug is a race condition between Emacs and glib: Emacs does a waitpid (-1, ...) and reaps glib's subprocess by mistake, so that glib can't find it. Work around the bug by invoking waitpid only on subprocesses that Emacs itself creates. * process.c (create_process, record_child_status_change): Don't use special value -1 in pid field, as the caller now must know the pid rather than having the callee infer it. The inference was sometimes incorrect anyway, due to another race. (create_process): Set new 'alive' member if child is created. (process_status_retrieved): New function. (record_child_status_change): Use it. Accept negative 1st argument, which means to wait for the processes that Emacs already knows about. Move special-case code for DOS_NT (which lacks WNOHANG) here, from caller. Keep track of processes that have already been waited for, by testing and clearing new 'alive' member. (CAN_HANDLE_MULTIPLE_CHILDREN): Remove, as record_child_status_change now does this internally. (handle_child_signal): Let record_child_status_change do all the work, since we do not want to reap all exited child processes, only the child processes that Emacs itself created. * process.h (Lisp_Process): New boolean member 'alive'. Fixes: debbugs:8855
* * process.c (wait_reading_process_output): Clean up last change.Chong Yidong2012-11-041-11/+6
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* Fix a race condition in wait_reading_process_output (tiny change).Chong Yidong2012-11-031-1/+4
| | | | | | | * src/process.c (wait_reading_process_output): Avoid a race condition with SIGIO delivery. Fixes: debbugs:11536
* Fix crash when using Emacs as commit editor for git.Paul Eggert2012-10-311-8/+2
| | | | | | | | | | | | | | | | | | | | | | * 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
* Fix warnings when compiling on MS-Windows with -std=gnu99.Eli Zaretskii2012-10-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Fix some stat-related races.Paul Eggert2012-10-121-17/+0
| | | | | | | | | | | | * fileio.c (Fwrite_region): Avoid race condition if a file is removed or renamed by some other process immediately after Emacs writes it but before Emacs stats it. Do not assume that stat (or fstat) succeeds. * image.c (slurp_file): Resolve the file name with fopen + fstat rather than stat + fopen. (pbm_read_file) [0]: Remove unused code with stat race. * process.c (allocate_pty) [HAVE_PTYS && !PTY_ITERATION && !PTY_OPEN]: Remove ineffective code with stat race.
* keyboard.c, keymap.c: Use bool for booleans.Paul Eggert2012-10-101-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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.
* Merge from trunkDaniel Colascione2012-10-071-332/+276
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| * Fix a malloc race condition involving strsignal.Paul Eggert2012-10-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A signal can arrive in the middle of a malloc, and Emacs's signal handler can invoke strsignal, which can invoke malloc, which is not portable. This race condition bug makes Emacs hang on GNU/Linux. Fix it by altering the signal handler so that it does not invoke strsignal. * emacs.c (shut_down_emacs): Use safe_strsignal, not strsignal. * process.c (status_message): Use const pointer, in case strsignal is #defined to safe_strsignal. * sysdep.c (sys_siglist, init_signals): Always define and initialize a substitute sys_siglist if the system does not define one, even if HAVE_STRSIGNAL. (safe_strsignal): Rename from strsignal. Always define, using sys_siglist. Return a const pointer. * syssignal.h (safe_strsignal): New decl. (strsignal) [!HAVE_STRSIGNAL]: Define in terms of safe_strsignal.
| * Prefer plain 'static' to 'static inline'.Paul Eggert2012-09-301-16/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * Simplify and avoid signal-handling races.Paul Eggert2012-09-231-315/+259
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
* | Merge from trunkDaniel Colascione2012-09-171-217/+182
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| * Remove no-longer-needed Solaris 2.4 vfork bug workaround.Paul Eggert2012-09-161-31/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | The workaround was for improving performance on Solaris 2.4, but is getting in the way now. Emacs will still work if someone is still running Solaris 2.4 in a museum somewhere; Sun dropped support for Solaris 2.4 in 2003. * configure.ac (ac_cv_func_vfork_works): Default to 'no' on Solaris 2.4, so that AC_FUNC_VFORK doesn't think vfork works. * src/callproc.c (Fcall_process) [HAVE_WORKING_VFORK]: * src/process.c (create_process) [HAVE_WORKING_VFORK]: Omit now-unnecessary workaround for the Solaris 2.4 vfork bug, since Emacs no longer uses vfork on that platform.
| * Remove configure's --without-sync-input option.Paul Eggert2012-09-161-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When auditing signal-handling in preparation for cleaning it up, I found that SYNC_INPUT has race conditions and would be a real pain to fix. Since it's an undocumented and deprecated configure-time option, now seems like a good time to remove it. Also see <http://bugs.gnu.org/11080#16>. * configure.ac (SYNC_INPUT, BROKEN_SA_RESTART): Remove. * admin/CPP-DEFINES (BROKEN_SA_RESTART, SA_RESTART): Remove. * etc/TODO (Make SYNC_INPUT the default): Remove, as the code now behaves as if SYNC_INPUT is always true. * src/alloc.c (_bytes_used, __malloc_extra_blocks, _malloc_internal) (_free_internal) [!DOUG_LEA_MALLOC]: Remove decls. (alloc_mutex) [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]: (malloc_hysteresis): (check_depth) [XMALLOC_OVERRUN_CHECK]: (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): (__malloc_hook, __realloc_hook, __free_hook, BYTES_USED) (dont_register_blocks, bytes_used_when_reconsidered) (bytes_used_when_full, emacs_blocked_free, emacs_blocked_malloc) (emacs_blocked_realloc, reset_malloc_hooks, uninterrupt_malloc): [!SYSTEM_MALLOC && !SYNC_INPUT]: Remove. All uses removed. (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): Use a different implementation, one that depends on whether the new macro XMALLOC_BLOCK_INPUT_CHECK is defined, not on whether SYNC_INPUT is defined. * src/atimer.c (run_timers, handle_alarm_signal): * src/keyboard.c (pending_signal, poll_for_input_1, poll_for_input) (handle_async_input, process_pending_signals) (handle_input_available_signal, init_keyboard): * src/nsterm.m (ns_read_socket): * src/process.c (wait_reading_process_output): * src/regex.c (immediate_quit, IMMEDIATE_QUIT_CHECK): * src/sysdep.c (emacs_sigaction_init) [SA_RESTART]: (emacs_write): * src/xterm.c (XTread_socket): Assume SYNC_INPUT. * src/conf_post.h (SA_RESTART) [IRIX6_5]: Do not #undef. * src/eval.c (handling_signal): Remove. All uses removed. * src/lisp.h (ELSE_PENDING_SIGNALS): Remove. All uses replaced with the SYNC_INPUT version. (reset_malloc_hooks, uninterrupt_malloc, handling_signal): Remove decls. * src/sysdep.c, src/syssignal.h (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Now static. Fixes: debbugs:12450
| * Port better to POSIX hosts lacking _setjmp.Paul Eggert2012-09-151-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
| * Simplify SIGIO usage.Paul Eggert2012-09-121-14/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * Prefer assignment to memcpy when either will do.Paul Eggert2012-09-111-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | * lib-src/pop.c (socket_connection) [HAVE_GETADDRINFO]: * src/bidi.c (bidi_push_it, bidi_pop_it): * src/fns.c (copy_hash_table): * src/image.c (define_image_type): * src/keyboard.c (kbd_buffer_store_event_hold): * src/process.c (Fprocess_send_eof): * src/xfaces.c (x_create_gc) [HAVE_NS]: * src/xgselect.c (xg_select): Use assignment, not memcpy, as either will do here, and assignment is more likely to catch type errors.
| * Convenient macro to check whether the buffer is live.Dmitry Antipov2012-09-111-2/+2
| | | | | | | | | | | | * buffer.h (BUFFER_LIVE_P): New macro. * alloc.c, buffer.c, editfns.c, insdel.c, lread.c, marker.c: * minibuf.c, print.c, process.c, window.c, xdisp.c: Use it.
| * Signal-handler cleanup.Paul Eggert2012-09-061-16/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * Fix bug #12327 with SIGCHLD handling on Windows and some other systems.Eli Zaretskii2012-09-061-2/+2
| | | | | | | | | | src/process.c (CAN_HANDLE_MULTIPLE_CHILDREN): Fix a typo that broke SIGCHLD handling on systems that don't have WNOHANG.
| * Fix race conditions with signal handlers and errno.Paul Eggert2012-09-051-127/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
| * Simplify redefinition of 'abort' (Bug#12316).Paul Eggert2012-09-041-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
| * Be more systematic about _setjmp vs setjmp.Paul Eggert2012-09-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | * alloc.c (test_setjmp, mark_stack): * image.c (PNG_LONGJMP) [PNG_LIBPNG_VER < 10500]: (PNG_JMPBUF) [! (PNG_LIBPNG_VER < 10500)]: (png_load, my_error_exit, jpeg_load): * process.c (send_process_trap, send_process): Uniformly prefer _setjmp and _longjmp to setjmp and longjmp. The underscored versions are up to 30x faster on some hosts. Formerly, the code used setjmp+longjmp sometimes and _setjmp+_longjmp at other times, with no particular reason to prefer setjmp+longjmp.
| * * emacs.c, eval.c: Use bool for boolean.Paul Eggert2012-09-021-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * emacs.c (initialized, inhibit_window_system, running_asynch_code): (malloc_using_checking) [DOUG_LEA_MALLOC]: (display_arg) [HAVE_X_WINDOWS || HAVE_NS]: (noninteractive, no_site_lisp, fatal_error_in_progress, argmatch) (main, decode_env_path, Fdaemon_initialized): * eval.c (call_debugger, Finteractive_p, interactive_p): (unwind_to_catch, Fsignal, wants_debugger, skip_debugger) (maybe_call_debugger, Fbacktrace): * process.c (read_process_output, exec_sentinel): Use bool for booleans. * emacs.c (shut_down_emacs): Omit unused boolean argument NO_X. All callers changed. * eval.c (interactive_p): Omit always-true boolean argument EXCLUDE_SUBRS_P. All callers changed. * dispextern.h, lisp.h: Reflect above API changes. * firstfile.c (dummy): Use the address of 'main', whose signature won't change, instead of the address of 'initialize', whose signature just changed from int to bool. * lisp.h (fatal_error_in_progress): New decl of boolean, moved here ... * msdos.c (fatal_error_in_progress): ... from here. * xdisp.c (redisplaying_p): Now a boolean. Set it to 1 instead of incrementing it. (redisplay_internal, unwind_redisplay): Simply clear REDISPLAYING_P when unwinding, instead of saving its previous, always-false value and then restoring it.
| * Clean up some extern decls.Paul Eggert2012-09-021-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mostly, this hoists extern decls out of .c files and into .h files. That way, we're more likely to catch errors if the interfaces change. * alloc.c [USE_GTK]: Include "gtkutil.h" so that we need not declare xg_mark_data. * dispextern.h (x_frame_parm_handlers): * font.h (Qxft): * lisp.h (Qlexical_binding, Qinternal_interpreter_environment) (Qextra_light, Qlight, Qsemi_light, Qsemi_bold, Qbold, Qextra_bold) (Qultra_bold, Qoblique, Qitalic): Move extern decl here from .c file. * alloc.c (xg_mark_data) [USE_GTK]: * doc.c (Qclosure): * eval.c (Qlexical_binding): * fns.c (time) [!HAVE_UNISTD_H]: * gtkutil.c (Qxft, Qnormal, Qextra_light, Qlight, Qsemi_light) (Qsemi_bold, Qbold, Qextra_bold, Qultra_bold, Qoblique, Qitalic): * image.c (Vlibrary_cache, QCloaded_from) [HAVE_NTGUI]: * lread.c (Qinternal_interpreter_environment): * minibuf.c (Qbuffer): * process.c (QCfamily, QCfilter): * widget.c (free_frame_faces): * xfaces.c (free_frame_menubar) [USE_X_TOOLKIT]: * xfont.c (x_clear_errors): * xterm.c (x_frame_parm_handlers): Remove now-redundant extern decls. * keyboard.c, keyboard.h (ignore_mouse_drag_p) [USE_GTK || HAVE_NS]: * xfaces.c (Qultra_light, Qreverse_oblique, Qreverse_italic): Now static. * xfaces.c: Remove unnecessary static decls. * xterm.c (updating_frame): Remove decl of nonexistent object.
* | Implement cygw32Daniel Colascione2012-09-171-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Refactor window-system configurationDaniel Colascione2012-08-311-3/+4
| | | | | | | | | | 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.
* Always use set_buffer_if_live to restore original buffer at unwind.Dmitry Antipov2012-08-281-2/+2
| | | | | | | | * buffer.h (record_unwind_current_buffer): New function. * bytecode.c, dispnew.c, editfns.c, fileio.c, fns.c, insdel.c: * keyboard.c, keymap.c, minibuf.c, print.c, process.c, textprop.c: * undo.c, window.c: Adjust users. * buffer.c (set_buffer_if_live): Fix comment.
* * composite.c, data.c, dbusbind.c, dired.c: Use bool for booleans.Paul Eggert2012-08-271-9/+7
| | | | | | | | | | | | | | | | | | * composite.c (find_composition, composition_gstring_p) (composition_reseat_it, find_automatic_composition): * data.c (let_shadows_buffer_binding_p) (let_shadows_global_binding_p, set_internal, make_blv) (Fmake_variable_buffer_local, Fmake_local_variable) (Fmake_variable_frame_local, arithcompare, cons_to_unsigned) (cons_to_signed, arith_driver): * dbusbind.c (xd_in_read_queued_messages): * dired.c (directory_files_internal, file_name_completion): Use bool for booleans. * dired.c (file_name_completion): * process.h (fd_callback): Omit int (actually boolean) argument. It wasn't being used. All uses changed. * composite.h, lisp.h: Reflect above API changes.
* Rely on <unistd.h> to declare 'environ',Paul Eggert2012-08-191-3/+0
| | | | | | | | | as gnulib does this if the system doesn't. * lib-src/emacsclient.c (environ): Remove decl. * src/callproc.c, src/editfns.c, src/process.c (environ) [!USE_CRT_DLL]: * src/emacs.c (environ) [DOUG_LEA_MALLOC]: * src/vm-limit.c (environ) [ORDINARY_LINK]: Remove decl. * src/vm-limit.c: Include <unistd.h>, for 'environ'.
* * buffer.h (BSET): Remove.Paul Eggert2012-08-171-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses with calls to new setter functions. (bset_bidi_paragraph_direction, bset_case_canon_table) (bset_case_eqv_table, bset_directory, bset_display_count) (bset_display_time, bset_downcase_table) (bset_enable_multibyte_characters, bset_filename, bset_keymap) (bset_last_selected_window, bset_local_var_alist) (bset_mark_active, bset_point_before_scroll, bset_read_only) (bset_truncate_lines, bset_undo_list, bset_upcase_table) (bset_width_table): * 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): * category.c (bset_category_table): * syntax.c (bset_syntax_table): New setter functions. Fixes: debbugs:12215
* * process.h (PSET): Remove.Paul Eggert2012-08-171-100/+184
| | | | | | | | | | | | | | | | | | Replace all uses with calls to new setter functions. Use INLINE_HEADER_BEGIN, INLINE_HEADER_END. (PROCESS_INLINE): New macro. (pset_childp): New setter function. (pset_gnutls_cred_type) [HAVE_GNUTLS]: New setter function. * process.c (PROCESS_INLINE): Define to EXTERN_INLINE, so that the corresponding functions are compiled into code. (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): New setter functions. Fixes: debbugs:12215
* Use BSET for write access to Lisp_Object members of struct buffer.Dmitry Antipov2012-08-131-4/+4
| | | | | | | | * buffer.h (BSET): New macro. * buffer.c, casetab.c, cmds.c, coding.c, data.c, editfns.c: * fileio.c, frame.c, indent.c, insdel.c, intervals.c, keymap.c: * minibuf.c, print.c, process.c, syntax.c, undo.c, w32fns.c: * window.c, xdisp.c, xfns.c: Adjust users.
* Drop PGET and revert read access to Lisp_Objects slots of Lisp_Process.Dmitry Antipov2012-08-071-144/+143
| | | | | | * process.h (PGET): Remove. (struct Lisp_Process): Do not use INTERNAL_FIELD. * gnutls.c, print.c, process.c, sysdep.c, w32.c, xdisp.c: Adjust users.
* Separate read and write access to Lisp_Object slots of Lisp_Process.Dmitry Antipov2012-08-061-228/+228
| | | | | * process.h (PGET, PSET): New macros similar to AREF and ASET. * gnutls.c, print.c, process.c, sysdep.c, w32.c, xdisp.c: Adjust users.
* Port to Solaris 8.Paul Eggert2012-08-011-7/+7
| | | | | | | | | | Without this change, 'configure' fails because the recently-added wait3 prototype in config.h messes up later 'configure' tests. Fix this problem by droping wait3 and WRETCODE, as they're no longer needed on hosts that are current porting targets. * configure.ac (wait3, WRETCODE): Remove, fixing a FIXME. All uses changed to waitpid and WEXITSTATUS. * src/syswait.h (WRETCODE): Remove, consistently with ../configure.ac.
* Use INTERNAL_FIELD for processes.Dmitry Antipov2012-08-011-220/+226
| | | | | | | | | * src/process.h (PVAR): New macro. Adjust style. (struct Lisp_Process): Change Lisp_Object members to INTERNAL_FIELD. * src/print.c, src/process.c, src/sysdep.c, src/w32.c: * src/xdisp.c: Users changed. * admin/coccinelle/process.cocci: Semantic patch to replace direct access to Lisp_Object members of struct Lisp_Process to PVAR.
* Simple wrapper for make_unibyte_string, adjust font_open_by_name.Dmitry Antipov2012-07-201-1/+1
| | | | | | | | | | | | * src/lisp.h (build_unibyte_string): New function. * src/dosfns.c, src/fileio.c, src/fns.c, src/ftfont.c, src/process.c: * src/sysdep.c, src/w32fns.c, src/xfns.c: Use it. * src/font.c (font_open_by_name): Change 2nd and 3rd args to the only arg of type Lisp_Object to avoid redundant calls to make_unibyte_string. Adjust users accordingly. * src/font.h (font_open_by_name): Adjust prototype. * admin/coccinelle/unibyte_string.cocci: Semantic patch to convert from make_unibyte_string to build_unibyte_string where appropriate.
* Remove macro MIN_PTY_KERNEL_VERSION, only used in one placeGlenn Morris2012-07-121-2/+1
| | | | | * src/process.c (init_process_emacs): Replace MIN_PTY_KERNEL_VERSION. * src/s/darwin.h (MIN_PTY_KERNEL_VERSION): Remove single-use macro.
* Rename init_process rather than working around it on DarwinGlenn Morris2012-07-121-1/+3
| | | | | | | | | | | The old name is also the name of a Mach system call. * src/process.c (init_process_emacs): Rename from init_process. * src/lisp.h, src/emacs.c: Update for this name change. * src/nsgui.h, src/sysselect.h, src/s/darwin.h: Remove workaround that is no longer needed.
* EMACS_TIME simplification (Bug#11875).Paul Eggert2012-07-101-22/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This replaces macros (which typically do not work in GDB) with functions, typedefs and enums, making the code easier to debug. The functional style also makes code easier to read and maintain. * lib-src/profile.c (TV2): Remove no-longer-needed static var. * src/systime.h: Include <sys/time.h> on all hosts, not just if WINDOWSNT, since 'struct timeval' is needed in general. (EMACS_TIME): Now a typedef, not a macro. (EMACS_TIME_RESOLUTION, LOG10_EMACS_TIME_RESOLUTION): Now constants, not macros. (EMACS_SECS, EMACS_NSECS, EMACS_TIME_SIGN, EMACS_TIME_VALID_P) (EMACS_TIME_FROM_DOUBLE, EMACS_TIME_TO_DOUBLE, EMACS_TIME_EQ) (EMACS_TIME_NE, EMACS_TIME_GT, EMACS_TIME_GE, EMACS_TIME_LT) (EMACS_TIME_LE): Now functions, not macros. (EMACS_SET_SECS, EMACS_SET_NSECS, EMACS_SET_SECS_NSECS) (EMACS_SET_USECS, EMACS_SET_SECS_USECS): Remove these macros, which are not functions. All uses rewritten to use: (make_emacs_time): New function. (EMACS_SECS_ADDR, EMACS_SET_INVALID_TIME, EMACS_GET_TIME) (EMACS_ADD_TIME, EMACS_SUB_TIME): Remove these macros, which are not functions. All uses rewritten to use the following, respectively: (emacs_secs_addr, invalid_emacs_time, get_emacs_time) (add_emacs_time, sub_emacs_time): New functions. * src/atimer.c: Don't include <sys/time.h>, as "systime.h" does this. * src/fileio.c (Fcopy_file): * src/xterm.c (XTflash): Get the current time closer to when it's used. * src/makefile.w32-in ($(BLD)/atimer.$(O)): Update dependencies.
* Simplify by avoiding confusing use of strncpy etc.Paul Eggert2012-07-101-3/+6
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* * process.c (wait_reading_process_output): 'waitchannels' was unsetPaul Eggert2012-07-091-15/+11
| | | | when read_kbd || !NILP (wait_for_cell); fix this.
* Use make_formatted_string to avoid double length calculation.Dmitry Antipov2012-07-091-2/+1
| | | | | | | | | | | | | | | | | * lisp.h (make_formatted_string): New prototype. * alloc.c (make_formatted_string): New function. * buffer.c (Fgenerate_new_buffer_name): Use it. * dbus.c (syms_of_dbusbind): Likewise. * editfns.c (Fcurrent_time_zone): Likewise. * filelock.c (get_boot_time): Likewise. * frame.c (make_terminal_frame, set_term_frame_name) (x_report_frame_params): Likewise. * image.c (gs_load): Likewise. * minibuf.c (get_minibuffer): Likewise. * msdos.c (dos_set_window_size): Likewise. * process.c (make_process): Likewise. * xdisp.c (ensure_echo_area_buffers): Likewise. * xsettings.c (apply_xft_settings): Likewise.
* * process.c: Avoid unnecessary calls to gettime.Paul Eggert2012-07-061-8/+8
| | | | | | (wait_reading_process_output): Don't get the time of day when gobbling data immediately and not waiting, as there's no need for it in that case. This removes a FIXME.
* More xmalloc and related cleanup.Paul Eggert2012-07-051-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | * alloc.c, bidi.c, buffer.c, buffer.h, bytecode.c, callint.c: * callproc.c, charset.c, coding.c, composite.c, data.c, dispnew.c: * doc.c, editfns.c, emacs.c, eval.c, fileio.c, filelock.c, fns.c: * font.c, fontset.c, frame.c, fringe.c, ftfont.c, ftxfont.c, gmalloc.c: * gtkutil.c, image.c, keyboard.c, keymap.c, lread.c, macros.c, menu.c: * nsfns.m, nsfont.m, nsmenu.m, nsterm.m, print.c, process.c, ralloc.c: * regex.c, region-cache.c, scroll.c, search.c, sound.c, syntax.c: * sysdep.c, term.c, termcap.c, unexmacosx.c, window.c, xdisp.c: * xfaces.c, xfns.c, xftfont.c, xgselect.c, xmenu.c, xrdb.c, xselect.c: * xterm.c: Omit needless casts involving void * pointers and allocation. Prefer "P = xmalloc (sizeof *P)" to "P = xmalloc (sizeof (TYPE_OF_P))", as the former is more robust if P's type is changed. Prefer xzalloc to xmalloc + memset 0. Simplify malloc-or-realloc to realloc. Don't worry about xmalloc returning a null pointer. Prefer xstrdup to xmalloc + strcpy. * editfns.c (Fmessage_box): Grow message_text by at least 80 when growing it. * keyboard.c (apply_modifiers_uncached): Prefer local array to alloca of a constant.
* Cleanup xmalloc.Dmitry Antipov2012-07-051-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * admin/coccinelle/xzalloc.cocci: Semantic patch to convert calls to xmalloc with following memset to xzalloc. * src/lisp.h (xzalloc): New prototype. Omit needless casts. * src/alloc.c (xzalloc): New function. Omit needless casts. * src/charset.c: Omit needless casts. Convert all calls to malloc with following memset to xzalloc. * src/dispnew.c: Likewise. * src/fringe.c: Likewise. * src/image.c: Likewise. * src/sound.c: Likewise. * src/term.c: Likewise. * src/w32fns.c: Likewise. * src/w32font.c: Likewise. * src/w32term.c: Likewise. * src/xfaces.c: Likewise. * src/xfns.c: Likewise. * src/xterm.c: Likewise. * src/atimer.c: Omit needless casts. * src/buffer.c: Likewise. * src/callproc.c: Likewise. * src/ccl.c: Likewise. * src/coding.c: Likewise. * src/composite.c: Likewise. * src/doc.c: Likewise. * src/doprnt.c: Likewise. * src/editfns.c: Likewise. * src/emacs.c: Likewise. * src/eval.c: Likewise. * src/filelock.c: Likewise. * src/fns.c: Likewise. * src/gtkutil.c: Likewise. * src/keyboard.c: Likewise. * src/lisp.h: Likewise. * src/lread.c: Likewise. * src/minibuf.c: Likewise. * src/msdos.c: Likewise. * src/print.c: Likewise. * src/process.c: Likewise. * src/region-cache.c: Likewise. * src/search.c: Likewise. * src/sysdep.c: Likewise. * src/termcap.c: Likewise. * src/terminal.c: Likewise. * src/tparam.c: Likewise. * src/w16select.c: Likewise. * src/w32.c: Likewise. * src/w32reg.c: Likewise. * src/w32select.c: Likewise. * src/w32uniscribe.c: Likewise. * src/widget.c: Likewise. * src/xdisp.c: Likewise. * src/xmenu.c: Likewise. * src/xrdb.c: Likewise. * src/xselect.c: Likewise.
* Auto-generate EXFUN using make-docfileTom Tromey2012-07-031-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | src * window.c (Fset_window_margins, Fset_window_fringes) (Fset_window_scroll_bars, Fset_window_vscroll): No longer static. * textprop.c (Fprevious_property_change): No longer static. * syntax.c (Fsyntax_table_p): No longer static. * process.c (Fget_process, Fprocess_datagram_address): No longer static. * keymap.c (Flookup_key, Fcopy_keymap): No longer static. * keyboard.c (Fcommand_execute): No longer static. Remove EXFUN. * insdel.c (Fcombine_after_change_execute): No longer static. * image.c (Finit_image_library): No longer static. * fileio.c (Fmake_symbolic_link): No longer static. * eval.c (Ffetch_bytecode): No longer static. * editfns.c (Fuser_full_name): No longer static. * doc.c: (Fdocumentation_property, Fsnarf_documentation): No longer static. * buffer.c (Fset_buffer_major_mode, Fdelete_overlay): No longer static. * dired.c (Ffile_attributes): No longer static. * composite.c (Fcomposition_get_gstring): No longer static. * callproc.c (Fgetenv_internal): No longer static. * ccl.h: Remove EXFUNs. * buffer.h: Remove EXFUNs. * dispextern.h: Remove EXFUNs. * intervals.h: Remove EXFUNs. * fontset.h: Remove EXFUN. * font.h: Remove EXFUNs. * dosfns.c (system_process_attributes): Remove EXFUN. * keymap.h: Remove EXFUNs. * lisp.h: Remove EXFUNs. * w32term.h: Remove EXFUNs. * window.h: Remove EXFUNs. * xsettings.h: Remove EXFUN. * xterm.h: Remove EXFUN. lib-src * make-docfile.c (enum global_type) <FUNCTION>: New constant. (struct global) <value>: New field. (add_global): Add 'value' argument. (compare_globals): Sort functions at the end. (close_emacs_globals): New function. (write_globals): Handle functions. (scan_c_file): Call add_global for DEFUN.
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