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* Simplify stack-allocated Lisp objects, and make them more portable.Paul Eggert2014-09-291-21/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The build_local_string macro was used in two ways: (1) string literals for which scoped allocation suffices, and (2) file name components, where it's not safe in general to assume bounded-size ASCII data. Simplify by defining a new macro SCOPED_STRING that allocates a block-scope string, and by using SCOPED_STRING for (1) and build_string for (2). Furthermore, actually use stack allocation only for objects known to have sufficient alignment. This simpler implementation means Emacs can make USE_STACK_LISP_OBJECTS the default unless GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS. * lisp.h (GCALIGNED): Align even if !USE_STACK_LISP_OBJECTS, for fewer differences among implementations. (struct Lisp_String): Now GCALIGNED. (USE_STACK_LISP_OBJECTS): Default to true, since the implementation no longer insists on a nonempty GCALIGNED. But make it false if GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS. (SCOPED_CONS_INITIALIZER): Remove, since it's no longer needed separately. Move definiens to scoped_cons. The old definition was incorrect when GCALIGNED was defined to be empty. (union Aligned_String): New type. (USE_STACK_CONS, USE_STACK_STRING): New constants, so that the implementation ports to compilers that don't align strictly enough. Don't worry about the union sizes; it's not worth bothering about. (scoped_cons, scoped_list1, scoped_list3, scoped_list4): Rewrite using USE_STACK_CONS. (scoped_cons): Assume the use of union Aligned_Cons. (lisp_string_size, make_local_string, build_local_string): Remove. Unless otherwise specified, all callers of build_local_string changed to use SCOPED_STRING. (SCOPED_STRING): New macro. * data.c (wrong_choice): * menu.c (single_menu_item): * process.c (Fformat_network_address): Hoist use of SCOPED_STRING out of a scope, so that its returned object lives long enough. * fileio.c (Fexpand_file_name): Use build_string, not SCOPED_STRING, as the string might be long or might not be ASCII.
* Keep stack-allocated Lisp objects fast rather than versatile.Dmitry Antipov2014-09-291-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (HAVE_STATEMENT_EXPRESSIONS): Remove. For USE_STACK_LISP_OBJECTS, we always assume __GNUC__. * lisp.h (union Aligned_Cons) [!GCALIGNED]: Define as such. (SCOPED_CONS_INITIALIZER): New macro. (scoped_cons) [USE_STACK_LISP_OBJECTS]: Use it. (USE_LOCAL_ALLOCA): Remove. (local_cons, local_list1, local_list2, local_list3, local_list4): Remove. Stack overflow checking makes them too slow. (make_local_vector): Likewise. Also we just don't have enough users for it. (enum LISP_STRING_OVERHEAD): Remove. (local_string_init, local_vector_init): Remove prototypes. (make_local_string, build_local_string): Redesign to target short compile-time string constants, fall back to regular string allocation where appropriate. (lisp_string_size): New function. (verify_ascii) [ENABLE_CHECKING]: Add prototype. * alloc.c (local_string_init, local_vector_init): Remove. (verify_ascii) [ENABLE_CHECKING]: New function. * buffer.c, charset.c, chartab.c, data.c, editfns.c, emacs.c, fileio.c: * fns.c, font.c, fontset.c, frame.c, keyboard.c, keymap.c, lread.c: * menu.c, minibuf.c, process.c, textprop.c, xdisp.c, xfns.c, xfont.c: * xselect.c, xterm.c: All related users changed.
* Fix local_cons etc. to not exhaust the stack when in a loop.Paul Eggert2014-09-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem reported in: http://lists.gnu.org/archive/html/emacs-devel/2014-09/msg00696.html * buffer.c (Fother_buffer, other_buffer_safely, init_buffer): * charset.c (load_charset_map_from_file, Ffind_charset_region) (Ffind_charset_string): * chartab.c (uniprop_encode_value_numeric, uniprop_table): * data.c (wrong_range): * editfns.c (Fpropertize, format2): * emacs.c (init_cmdargs, decode_env_path): * fileio.c (auto_save_error): * fns.c (Fyes_or_no_p): * font.c (font_style_to_value, font_parse_xlfd) (font_parse_family_registry, font_delete_unmatched) (font_add_log): * fontset.c (Fset_fontset_font): * frame.c (x_get_arg): * keyboard.c (echo_dash, safe_run_hooks_error, parse_menu_item) (read_char_minibuf_menu_prompt): * keymap.c (silly_event_symbol_error, describe_vector): * lread.c (load_warn_old_style_backquotes): * menu.c (single_menu_item): * minibuf.c (Fread_buffer): * process.c (status_message, Fformat_network_address) (server_accept_connection): * textprop.c (copy_text_properties): * xdisp.c (Fcurrent_bidi_paragraph_direction): * xfns.c (x_default_scroll_bar_color_parameter): * xfont.c (xfont_open): * xselect.c (x_clipboard_manager_error_1): * xterm.c (x_term_init): Put USE_LOCAL_ALLOCA at the start of the function. * fns.c (maybe_resize_hash_table): Use build_string instead of build_local_string, since we'd otherwise need a conditional USE_LOCAL_ALLOCA here, but this is just debugging output and is not worth the bother of optimization. * font.c (font_delete_unmatched): Remove by-hand code that observed MAX_ALLOCA limit, since it's now done automatically. * keymap.c (Fsingle_key_description): Put USE_SAFE_ALLOCA at top, since build_local_string needs its sa_alloc. * lisp.h (lisp_word_count): New function. (SAFE_ALLOCA_LISP): Use it. (USE_LOCAL_ALLOCA): New macro. (local_cons, make_local_vector, make_local_string): Observe the MAX_ALLOCA limit. (LISP_STRING_OVERHEAD): New constant. (make_local_string): Use it.
* * lisp.h (lispstpcpy): Rename from lispstrcpy, and act like stpcpy.Paul Eggert2014-09-231-2/+2
| | | | | | All callers changed. * xterm.c (x_term_init): Use new functionality to avoid two needs to compute a string length.
* Use known length of a Lisp string to copy it faster.Dmitry Antipov2014-09-231-2/+2
| | | | | | | | | | | | | | | | * lisp.h (lispstrcpy): New function. Add comment. * callproc.c (child_setup): * dbusbind.c (xd_append_arg): * doc.c (get_doc_string): * font.c (Ffont_xlfd_name): * frame.c (xrdb_get_resource): * process.c (Fmake_network_process, network_interface_info): * w32fns.c (Fx_open_connection): * w32proc.c (sys_spawnve): * xfns.c (select_visual): * xfont.c (xfont_list): * xsmfns.c (x_session_initialize): * xterm.c (x_term_init): Use it.
* More and more stack-allocated Lisp objects if USE_LOCAL_ALLOCATORS.Dmitry Antipov2014-09-181-1/+1
| | | | | | | | | | | | | | | | * lisp.h (local_list4) [USE_LOCAL_ALLOCATORS]: New macro. [!USE_LOCAL_ALLOCATORS]: Fall back to regular list4. * frame.h (FRAME_PARAMETER): New macro. * dispnew.c (init_display): * fontset.c (Fset_fontset_font): * frame.c (x_default_parameter): * xfaces.c (set_font_frame_param, Finternal_merge_in_global_face): * xfns.c (x_default_scroll_bar_color_parameter) (x_default_font_parameter, x_create_tip_frame): Use it. * editfns.c (Fpropertize): Use local_cons. * process.c (status_message): Use build_local_string. * xfont.c (xfont_open): Use make_local_string. * xdisp.c (build_desired_tool_bar_string): Use local_list4.
* Avoid clang-specific warnings.Dmitry Antipov2014-09-171-2/+2
| | | | | * buffer.c (init_buffer): Shut up -Wself-assign. * process.c (server_accept_connection): Shut up -Wunsequenced.
* If USE_LOCAL_ALLOCATORS, allocate some Lisp objects on stack.Dmitry Antipov2014-09-151-41/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * lisp.h (local_cons, local_list1, local_list2, local_list3) [USE_LOCAL_ALLOCATORS]: New macros. [!USE_LOCAL_ALLOCATORS]: Fall back to regular functions. (build_local_string): Avoid argument name expansion clash with make_local_string. * alloc.c (toplevel) [USE_LOCAL_ALLOCATORS && GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS]: Preprocessor guard to avoid impossible configuration. * charset.c (Ffind_charset_region, Ffind_charset_string): Use make_local_vector. * lread.c (read1, substitute_object_recurse): Use scoped_cons. * textprop.c (Fput_text_property, Fadd_face_text_property): Use scoped_list2. (copy_text_properties): Use local_cons and local_list3. * chartab.c (uniprop_table): * data.c (wrong_choice, wrong_range): * doc.c (get_doc_string): * editfns.c (format2): * fileio.c (Fexpand_file_name, auto_save_error): * fns.c (Fyes_or_no_p): * font.c (font_parse_xlfd, font_parse_family_registry, font_add_log): * fontset.c (Fset_fontset_font): * keyboard.c (echo_add_key, echo_dash, parse_menu_item) (read_char_minibuf_menu_prompt): * keymap.c (silly_event_symbol_error, describe_vector): * menu.c (single_menu_item): * minibuf.c (Fread_buffer): * process.c (status_message, Fformat_network_address) (server_accept_connection): Use make_local_string and build_local_string. Prefer compound literals where appropriate.
* Use SAFE_ALLOCA etc. to avoid unbounded stack allocation.Paul Eggert2014-09-071-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This follows up on the recent thread in emacs-devel on alloca; see: http://lists.gnu.org/archive/html/emacs-devel/2014-09/msg00042.html This patch also cleans up alloca-related glitches noted while examining the code looking for unbounded alloca. * alloc.c (listn): * callproc.c (init_callproc): Rewrite to avoid need for alloca. * buffer.c (mouse_face_overlay_overlaps) (report_overlay_modification): * buffer.h (GET_OVERLAYS_AT): * coding.c (make_subsidiaries): * doc.c (Fsnarf_documentation): * editfns.c (Fuser_full_name): * fileio.c (Ffile_name_directory, Fexpand_file_name) (search_embedded_absfilename, Fsubstitute_in_file_name): * fns.c (Fmake_hash_table): * font.c (font_vconcat_entity_vectors, font_update_drivers): * fontset.c (fontset_pattern_regexp, Ffontset_info): * frame.c (Fmake_terminal_frame, x_set_frame_parameters) (xrdb_get_resource, x_get_resource_string): * ftfont.c (ftfont_get_charset, ftfont_check_otf, ftfont_drive_otf): * ftxfont.c (ftxfont_draw): * image.c (xbm_load, xpm_load, jpeg_load_body): * keyboard.c (echo_add_key, menu_bar_items, tool_bar_items): * keymap.c (Fdescribe_buffer_bindings, describe_map): * lread.c (openp): * menu.c (digest_single_submenu, find_and_call_menu_selection) (find_and_return_menu_selection): * print.c (PRINTFINISH): * process.c (Fformat_network_address): * scroll.c (do_scrolling, do_direct_scrolling, scrolling_1): * search.c (search_buffer, Fmatch_data, Fregexp_quote): * sound.c (wav_play, au_play): * syntax.c (skip_chars): * term.c (tty_menu_activate, tty_menu_show): * textprop.c (get_char_property_and_overlay): * window.c (Fset_window_configuration): * xdisp.c (safe__call, next_overlay_change, vmessage) (compute_overhangs_and_x, draw_glyphs, note_mouse_highlight): * xfaces.c (face_at_buffer_position): * xmenu.c (x_menu_show): Use SAFE_ALLOCA etc. instead of plain alloca, since the allocation size isn't bounded. * callint.c (Fcall_interactively): Redo memory_full check so that it can be done at compile-time on some platforms. * coding.c (MAX_LOOKUP_MAX): New constant. (get_translation_table): Use it. * callproc.c (call_process): Use SAFE_NALLOCA instead of SAFE_ALLOCA, to catch integer overflows on size calculation. (exec_failed) [!DOS_NT]: New function. (child_setup) [!DOS_NT]: Use it. * editfns.c (Ftranspose_regions): Hoist USE_SAFE_ALLOC + SAFE_FREE out of 'if'. * editfns.c (check_translation): Allocate larger buffers on the heap. * eval.c (internal_lisp_condition_case): Check for MAX_ALLOCA overflow. * fns.c (sort_vector): Use SAFE_ALLOCA_LISP rather than Fmake_vector. (Fbase64_encode_region, Fbase64_decode_region): Avoid unnecessary calls to SAFE_FREE before 'error'. * buffer.c (mouse_face_overlay_overlaps): * editfns.c (Fget_pos_property, check_translation): * eval.c (Ffuncall): * font.c (font_unparse_xlfd, font_find_for_lface): * ftfont.c (ftfont_drive_otf): * keyboard.c (echo_add_key, read_decoded_event_from_main_queue) (menu_bar_items, tool_bar_items): * sound.c (Fplay_sound_internal): * xdisp.c (load_overlay_strings, dump_glyph_row): Use an ordinary auto buffer rather than alloca, since the allocation size is fixed and small. * ftfont.c: Include <c-strcase.h>. (matching_prefix): New function. (get_adstyle_property): Use it, to avoid need for alloca. * keyboard.c (echo_add_key): * keymap.c (describe_map): Use ptrdiff_t, not int. * keyboard.c (echo_add_key): Prefer sizeof to strlen. * keymap.c (Fdescribe_buffer_bindings): Use SBYTES, not SCHARS, when counting bytes. * lisp.h (xlispstrdupa): Remove, replacing with ... (SAFE_ALLOCA_STRING): ... new macro with different API. This fixes a portability problem, namely, alloca result passed to another function. All uses changed. (SAFE_ALLOCA, SAFE_ALLOCA_LISP): Check for MAX_ALLOCA, not MAX_ALLOCA - 1. * regex.c (REGEX_USE_SAFE_ALLOCA, REGEX_SAFE_FREE) (REGEX_ALLOCATE): New macros. (REGEX_REALLOCATE, REGEX_ALLOCATE_STACK, REGEX_REALLOCATE_STACK) (REGEX_FREE_STACK, FREE_VARIABLES, re_match_2_internal): Use them. * xdisp.c (message3): Use SAFE_ALLOCA_STRING rather than doing it by hand. (decode_mode_spec_coding): Store directly into buf rather than into an alloca temporary and copying the temporary to the buf. Fixes: debbugs:18410
* src/process.c: fix a comment typoReuben Thomas2014-08-091-1/+1
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* Fix Gnus-related issues reported by David Kastrup <dak@gnu.org> inDmitry Antipov2014-07-281-0/+2
| | | | | | | | | <http://lists.gnu.org/archive/html/emacs-devel/2014-07/msg00370.html>. * atimer.c (timerfd_callback): Always read expiration data. Add comment. (turn_on_atimers) [HAVE_TIMERFD]: Disarm timerfd timer. * process.c (add_timer_wait_descriptor): Add timer descriptor to input_wait_mask and non_process_wait_mask as well.
* On GNU/Linux, use timerfd for asynchronous timers.Dmitry Antipov2014-07-281-0/+18
| | | | | | | | | | | | | | | | | | | | | | | * configure.ac (toplevel): Check whether GNU/Linux-specific timerfd functions and macros are available. * m4/clock_time.m4 (gl_CLOCK_TIME): Check for clock_getres as well. * src/atimer.c (toplevel) [HAVE_TIMERFD]: Include sys/timerfd.h. (toplevel): Rename alarm_timer_ok to special_timer_available. [HAVE_TIMERFD]: Declare timerfd. [HAVE_CLOCK_GETRES]: Declare resolution. (start_atimer) [HAVE_CLOCK_GETRES]: Round up timestamp to system timer resolution. (set_alarm) [HAVE_TIMERFD]: Use timerfd_settime. (timerfd_callback) [HAVE_TIMERFD]: New function. (atimer_result, debug_timer_callback, Fdebug_timer_check) [ENABLE_CHECKING]: New function for the sake of automated tests. (init_atimer) [HAVE_TIMERFD]: Setup timerfd. [HAVE_CLOCK_GETRES]: Likewise for system timer resolution. [ENABLE_CHECKING]: Defsubr test function. * src/atimer.h (timerfd_callback) [HAVE_TIMERFD]: Add prototype. * src/lisp.h (add_timer_wait_descriptor) [HAVE_TIMERFD]: Likewise. * src/process.c (add_timer_wait_descriptor) [HAVE_TIMERFD]: New function. * test/automated/timer-tests.el (timer-tests-debug-timer-check): New test.
* Revert previous change.Paul Eggert2014-07-261-3/+3
| | | | | | | | There is certainly nothing wrong with writing code like 'lo <= i && i <= hi', even if LO happens to a constant. There isn't even anything wrong in general with writing 'a <= b' if A happens to be a constant. At any rate stylistic changes shouldn't be done like this without discussion.
* Reorder conditions that are written backwardsAndreas Schwab2014-07-261-3/+3
| | | | | | | | | | | | | | | | | | | * alloc.c (xnmalloc, xnrealloc, xpalloc, make_save_value) (Fgarbage_collect): Reorder conditions that are written backwards. * data.c (cons_to_unsigned): Likewise. * dispnew.c (update_frame_1, sit_for): Likewise. * fileio.c (file_offset): Likewise. * filelock.c (read_lock_data, lock_file): Likewise. * fns.c (larger_vector, make_hash_table, Fmake_hash_table): Likewise. * font.c (font_intern_prop, font_style_symbolic): Likewise. * lisp.h (FIXNUM_OVERFLOW_P): Likewise. * lread.c (read1): Likewise. * minibuf.c (read_minibuf_noninteractive): Likewise. * nsterm.m (x_set_frame_alpha): Likewise. * process.c (wait_reading_process_output): Likewise. * region-cache.c (delete_cache_boundaries): Likewise. * xterm.c (x_set_frame_alpha): Likewise.
* * process.c (read_and_dispose_of_process_output): Fix typoPaul Eggert2014-07-081-1/+1
| | | | in previous patch: we want nonnegative fds, not nonzero fds.
* * process.c: Add sanity checks for file descriptors.Paul Eggert2014-07-071-5/+10
| | | | | | | | | | (wait_reading_process_output, Fprocess_filter_multibyte_p): Check that infd is nonnegative before using it as an fd. (read_and_dispose_of_process_output, Fprocess_send_eof): Likewise, for outfd. (wait_reading_process_output): Omit unnecessary check of infd. Fixes: debbugs:17844
* Be more consistent about the 'Qfoo' naming convention.Paul Eggert2014-06-241-5/+5
| | | | | | | | * image.c (Fimagemagick_types): * lisp.h (lisp_h_CHECK_TYPE, CHECK_TYPE, CHECK_ARRAY): * process.c (Fmake_network_process): Rename C local identifier 'Qfoo to avoid giving the false impression that it stands for the symbol 'foo'.
* Avoid hangs in accept-process-output.Paul Eggert2014-06-131-58/+64
| | | | | | | | | | | | | * lisp.h, process.c (wait_reading_process_input): Return int, not bool. All uses changed. * process.c (SELECT_CANT_DO_WRITE_MASK): Remove macro, replacing with ... (SELECT_CAN_DO_WRITE_MASK): ... new constant, with inverted sense. All uses changed. (status_notify): New arg WAIT_PROC. Return int, not void. All uses changed. Fixes: debbugs:17647
* Say (accept-process-output P)'s result pertains to P if P is non-nil.Paul Eggert2014-06-091-13/+12
| | | | | | | * doc/lispref/processes.texi (Accepting Output): * src/process.c (Faccept_process_output) (wait_reading_process_output): Mention that if PROCESS is non-nil, the return value is about PROCESS, not about other processes.
* If a C name must be extern on some platforms, make it extern on all.Paul Eggert2014-06-081-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | * dispextern.h (set_vertical_scroll_bar, erase_phys_cursor) (load_color): * font.h (ftxfont_driver) [HAVE_XFT]: * keyboard.h (menu_items_inuse, ignore_mouse_drag_p, make_ctrl_char): * lisp.h (get_frame_param): * menu.h (tty_menu_show): * process.h (conv_sockaddr_to_lisp, catch_child_signal): * termhooks.h (encode_terminal_code): * xterm.h (x_menu_wait_for_event): Always declare. * frame.c (get_frame_param): * fringe.c (max_used_fringe_bitmap): * ftxfont.c (ftxfont_driver): * keyboard.c (ignore_mouse_drag_p, make_ctrl_char): * menu.c (menu_items_inuse): * process.c (conv_sockaddr_to_lisp, catch_child_signal): * term.c (encode_terminal_code, tty_menu_show): * xdisp.c (set_vertical_scroll_bar, erase_phys_cursor): * xfaces.c (load_color): * xmenu.c (x_menu_wait_for_event): Now always extern.
* * configure.ac (POLL_FOR_INPUT): Define with HAVE_WINDOW_SYSTEM.Dmitry Antipov2014-06-051-6/+0
| | | | | | * nt/inc/ms-w32.h (POLL_FOR_INPUT): Likewise. * src/keyboard.c, src/process.c: Do not define POLL_FOR_INPUT here because it will be defined in generated config.h if needed.
* If ENABLE_CHECKING, range-check args of FD_CLR, FD_ISSET, FD_SET.Paul Eggert2014-06-031-6/+0
| | | | | | | | | | * process.c (add_read_fd, delete_read_fd, add_write_fd) (delete_write_fd, wait_reading_process_output): Remove now-redundant easserts. * sysselect.h (SYSSELECT_H): New macro, to avoid double-inclusion woes. Use INLINE_HEADER_BEGIN, INLINE_HEADER_END. (fd_CLR, fd_ISSET, fd_SET): New inline functions. (FD_CLR, FD_ISSET, FD_SET): Redefine in terms of these functions.
* * process.c (wait_reading_process_output): Omit incorrect testPaul Eggert2014-06-021-1/+4
| | | | | of p->infd against zero. Add easserts for infd having a plausible value.
* Don't kill already-reaped process.Paul Eggert2014-05-261-20/+15
| | | | | | | | | | * process.c (process_send_signal): Fix race condition where a subprocess was reaped by a signal handler between the check for liveness and calling 'kill', which meant that Emacs could in theory kill an innocent bystander process. Do the fix by blocking SIGCHLD in a critical section that checks liveness before killing. Fixes: debbugs:17561
* Merge from emacs-24; up to 2014-05-04T21:18:30Z!eggert@cs.ucla.eduPaul Eggert2014-05-041-5/+1
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| * Handle systems without WCONTINUED consistently.Paul Eggert2014-05-031-5/+1
| | | | | | | | | | | | | | | | | | * lib-src/emacsclient.c (WCONTINUED): Move to ../src/syswait.h. * src/process.c (handle_child_signal): Remove WCONTINUED ifdef, because WCONTINUED is always defined now. * src/syswait.h (WCONTINUED): Move here from ../lib-src/emacsclient.c. Fixes: debbugs:15110 debbugs:17339
* | Merge from emacs-24; up to 2014-05-01T10:21:17Z!rgm@gnu.orgJuanma Barranquero2014-04-301-1/+5
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| * * src/process.c (handle_child_signal): Handle systems without WCONTINUEDGlenn Morris2014-04-291-1/+5
| | | | | | | | Fixes: debbugs:15110
* | Merge from emacs-24; up to 2014-04-16T15:28:26Z!monnier@iro.umontreal.caPaul Eggert2014-04-161-23/+27
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| * Fix the MSDOS build.Eli Zaretskii2014-04-161-23/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | src/unexcoff.c [MSDOS]: Include libc/atexit.h. (copy_text_and_data): Zero out the atexit chain pointer before dumping Emacs. src/termhooks.h (encode_terminal_code): Update prototype. src/term.c (encode_terminal_code) [DOS_NT]: Make it externally visible for all DOS_NT ports, not just WINDOWSNT. (syms_of_term) [!MSDOS]: Don't define 'tty-menu-*' symbols on MSDOS. src/sysdep.c (emacs_sigaction_init, init_signals): Don't use SIGCHLD unless it is defined. (emacs_pipe) [MSDOS]: Redirect to 'pipe'. src/process.c (close_on_exec, accept4, process_socket): Move into the "ifdef subprocesses" part. (catch_child_signal): Condition by "ifdef subprocesses". (syms_of_process) <Qinternal_default_process_sentinel> <Qinternal_default_process_filter>: Condition by "ifdef subprocesses". src/msdos.h: Add prototypes for new functions. (EINPROGRESS): Define. (O_CLOEXEC): Define to zero. src/msdos.c (check_window_system): Remove unnecessary an incompatible duplicate function. (sys_opendir, readlinkat, faccessat, fstatat, unsetenv): New functions in support of new functionality. src/menu.c (single_menu_item): Add visual indication of submenu also for menus on MSDOS frames. (Fx_popup_menu) [!MSDOS]: Do not call tty_menu_show on MSDOS. src/lisp.h (CHECK_PROCESS) [!subprocesses]: Do not define when async subprocesses aren't supported. src/font.h (FONT_WIDTH) [MSDOS]: MSDOS-specific definition. src/emacs.c (close_output_streams): Zero out errno before calling close_stream. src/dired.c [MSDOS]: Include msdos.h. src/conf_post.h (opendir) [MSDOS]: Redirect to sys_opendir. (DATA_START) [MSDOS]: Define. (SYSTEM_PURESIZE_EXTRA) [MSDOS]: Enlarge by 25K. src/callproc.c (block_child_signal, unblock_child_signal) [MSDOS]: Ifdef away for MSDOS. (record_kill_process) [MSDOS]: Ifdef away the entire body for MSDOS. (call_process_cleanup) [MSDOS]: Ifdef away portions not relevant for MSDOS. (call_process) [MSDOS]: Fix call sequence of dostounix_filename. Use temporary file template that is compatible with mkostemp. Move vfork-related portions under #ifndef MSDOS. (syms_of_callproc): Unify templates of MSDOS and WINDOWSNT. lisp/term/pc-win.el (x-list-fonts, x-get-selection-value): Provide doc strings, as required by snarf-documentation. msdos/sedlisp.inp: msdos/sedlibmk.inp: msdos/sedleim.inp: msdos/sed3v2.inp: msdos/sed2v2.inp: msdos/sed1v2.inp: Update Sed scripts for Emacs 24.4. msdos/inttypes.h: Add PRIdMAX. msdos/INSTALL: Update for Emacs 24.4. msdos/sedadmin.inp: New file.
| * Backport memory fix (2014-03-22T03:04:53Z!dancol@dancol.org) from trunkDaniel Colascione2014-03-221-4/+16
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| * Backport memory fix (2014-03-23T05:15:48Z!dancol@dancol.org) from trunkDaniel Colascione2014-03-221-1/+4
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* | Prefer 'ARRAYELTS (x)' to 'sizeof x / sizeof *x'.Paul Eggert2014-04-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * alloc.c (memory_full): * charset.c (syms_of_charset): * doc.c (Fsnarf_documentation): * emacs.c (main): * font.c (BUILD_STYLE_TABLE): * keyboard.c (make_lispy_event): * profiler.c (setup_cpu_timer): * xgselect.c (xg_select): * xterm.c (record_event, STORE_KEYSYM_FOR_DEBUG): Use ARRAYELTS. * font.c (FONT_PROPERTY_TABLE_SIZE): Remove. Replace the only use with ARRAYELTS (font_property_table). * xfaces.c (DIM): Remove. All uses replaced by ARRAYELTS.
* | Handle sigmask better with nested signal handlers.Paul Eggert2014-03-251-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * atimer.c (sigmask_atimers): Remove. Remaining use rewritten to use body of this function. * atimer.c (block_atimers, unblock_atimers): * callproc.c (block_child_signal, unblock_child_signal): * sysdep.c (block_tty_out_signal, unblock_tty_out_signal): New arg OLDSET. All callers changed. * atimer.c (block_atimers, unblock_atimers): * callproc.c (block_child_signal, unblock_child_signal): * keyboard.c (handle_interrupt): * sound.c (vox_configure, vox_close): Restore the old signal mask rather than unilaterally clearing bits from the mask, in case a handler is running within another handler. All callers changed. * lisp.h, process.c, process.h, term.c: Adjust decls and callers to match new API. * sysdep.c (emacs_sigaction_init): Don't worry about masking SIGFPE; signal handlers aren't supposed to use floating point anyway. (handle_arith_signal): Unblock just SIGFPE rather than clearing mask. Fixes: debbugs:15561
* | Don't underflow datagram_address arrayDaniel Colascione2014-03-221-1/+4
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* | Do not read unitialized memory in conv_sockaddr_to_lispDaniel Colascione2014-03-211-4/+16
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* Bit more doc for process filter and sentinel changesGlenn Morris2014-02-221-2/+3
| | | | | | | | | * src/process.c (Finternal_default_process_filter) (Finternal_default_process_sentinel): Doc tweaks. * doc/lispref/processes.texi: Typo fixes. * etc/NEWS: Related markup.
* Some doc updates for default process sentinels and filters not being nilGlenn Morris2014-02-211-15/+17
| | | | | | | | | | | | | | | | | | | * doc/lispref/internals.texi (Process Internals): * doc/lispref/processes.texi (Deleting Processes, Output from Processes) (Process Buffers, Filter Functions, Accepting Output, Sentinels) (Network, Network Servers, Network Processes, Serial Ports): Filters and sentinels can no longer be nil. * doc/lispref/elisp.texi (Top): Menu update. * doc/misc/flymake.texi (Starting the syntax check process): Grammar fix. * doc/misc/tramp.texi (External packages): Grammar fix. Reword for default sentinel not being nil any more. * src/process.c (Fprocess_buffer, Faccept_process_output) (Finternal_default_process_filter, Finternal_default_process_sentinel): Doc fixes.
* Don't ignore SIGPROF in subprocessesAndreas Schwab2014-01-301-0/+3
| | | | | * process.c (create_process): Reset SIGPROF handler in the child. * callproc.c (call_process): Likewise.
* Fix spelling of "GNUstep"Glenn Morris2014-01-201-1/+1
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* Update copyright year to 2014 by running admin/update-copyright.Paul Eggert2014-01-011-2/+2
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* Minor fixes for recent openp changes.Paul Eggert2013-12-181-1/+2
| | | | | | | | * lisp.h (GCPRO7): New macro. * lread.c (openp): Use bool for boolean; all callers changed. Protect save_string from GC. Don't assume that file descriptors are nonzero. Redo save_mtime comparison to avoid bogus GCC warning about uninitialized variable.
* Add load-prefer-newer option, to load .el if newer than .elcGlenn Morris2013-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | * src/lread.c (Fload): Pass load_prefer_newer to openp. Don't bother checking mtime if openp already did it. (openp): Add `newer' argument, to check all suffixes and find the newest file. (syms_of_lread) <load_prefer_newer>: New option. * src/callproc.c (call_process): * src/charset.c (load_charset_map_from_file): * src/emacs.c (init_cmdargs): * src/image.c (x_create_bitmap_from_file, x_find_image_file): * src/lisp.h (openp): * lread.c (Flocate_file_internal): * src/process.c (Fformat_network_address): * src/sound.c (Fplay_sound_internal): * src/w32.c (check_windows_init_file): * src/w32proc.c (sys_spawnve): Update for new arg spec of openp. * lisp/Makefile.in (BYTE_COMPILE_FLAGS): Set load-prefer-newer to t. * etc/NEWS: Mention this. Fixes: debbugs:2061
* Fix bug #16152 with crashes in process-send-eof on MS-Windows.Eli Zaretskii2013-12-151-13/+23
| | | | | src/process.c (Fprocess_send_eof): Don't crash if someone tries to open a pty on MS-Windows.
* * src/process.c (get_process): Explicit error for dead buffersGlenn Morris2013-11-221-5/+7
| | | | | That seems more in keeping with the existing behavior of this function in other situations.
* Merge from emacs-24; up to 2013-01-03T02:37:57Z!rgm@gnu.orgGlenn Morris2013-11-221-3/+2
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| * Fixes: debbugs:15923Andreas Schwab2013-11-191-3/+2
| | | | | | | | * process.c (get_process): Check that OBJ is a live buffer.
* | * src/xdisp.c (syms_of_xdisp): New vars redisplay--all-windows-cause andStefan Monnier2013-11-061-2/+2
| | | | | | | | | | | | | | | | redisplay--mode-lines-cause. (redisplay_internal): Keep them uptodate. Remove redundant check of buffer_shared_and_changed. * *.[chm]: Number every assignment to update_mode_lines so we can track why it is set.
* | Fix recent gnutls changes.Paul Eggert2013-11-041-1/+1
| | | | | | | | | | * gnutls.c (Fgnutls_boot): Don't assume C99. * process.c (wait_reading_process_output): Fix typo in recent change.
* | Several GnuTLS fixes for log level and initialization.Ted Zlatanov2013-11-041-3/+4
| | | | | | | | | | | | | | | | * gnutls.c (emacs_gnutls_handle_error): Adjust log level for EAGAIN. (Fgnutls_boot): Set process gnutls_p later, after initialization. * process.c (wait_reading_process_output, read_process_output) (send_process): Check gnutls_state is not NULL.
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