1. 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
  2. 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
  3. 10 Jan, 2013 1 commit
    • Dmitry Antipov's avatar
      Omit buffer_slot_type_mismatch and use generic predicates to enforce · 58cc0a01
      Dmitry Antipov authored
      the type of per-buffer values where appropriate.
      * src/lisp.h (struct Lisp_Buffer_Objfwd): Rename slottype member to
      predicate, which is how it's really used now.  Adjust comment.
      * src/buffer.h (buffer_slot_type_mismatch): Remove prototype.
      * src/buffer.c (buffer_slot_type_mismatch): Remove.
      (DEFVAR_PER_BUFFER, defvar_per_buffer): Rename type argument to
      predicate.  Adjust comment.
      (syms_of_buffer): Use Qsymbolp for major-mode.  Use Qintegerp for
      fill-column, left-margin, tab-width, buffer-saved-size,
      left-margin-width, right-margin-width, left-fringe-width,
      right-fringe-width, scroll-bar-width and buffer-display-count.
      Use Qstringp for default-directory, buffer-file-name,
      buffer-file-truename and buffer-auto-save-file-name.  Use Qfloatp for
      scroll-up-aggressively and scroll-down-aggressively.  Use Qnumberp for
      line-spacing.
      * src/data.c (store_symval_forwarding): Adjust to call the predicate.
      * lisp/cus-start.el (toplevel): Only allow float values for
      scroll-up-aggressively and scroll-down-aggressively.
      Allow any number for line-spacing.
      58cc0a01
  4. 01 Jan, 2013 1 commit
  5. 29 Dec, 2012 1 commit
  6. 27 Nov, 2012 2 commits
  7. 20 Nov, 2012 1 commit
    • Stefan Monnier's avatar
      Conflate Qnil and Qunbound for `symbol-function'. · eadf1faa
      Stefan Monnier authored
      * src/alloc.c (Fmake_symbol): Initialize `function' to Qnil.
      * src/lread.c (init_obarray): Set `function' fields to Qnil.
      * src/eval.c (Fcommandp): Ignore Qunbound.
      (Fautoload, eval_sub, Fapply, Ffuncall, Fmacroexpand):
      * src/data.c (Ffset, Ffboundp, indirect_function, Findirect_function):
      Test NILP rather than Qunbound.
      (Ffmakunbound): Set to Qnil.
      (Fsymbol_function): Never signal an error.
      (Finteractive_form): Ignore Qunbound.
      eadf1faa
  8. 12 Nov, 2012 1 commit
  9. 09 Nov, 2012 1 commit
    • Stefan Monnier's avatar
      Provide new `defalias-fset-function' symbol property. · 32e5c58c
      Stefan Monnier authored
      * src/lisp.h (AUTOLOADP): New macro.
      * src/eval.c (Fautoload): Don't attach to loadhist, call Fdefalias instead.
      * src/data.c (Ffset): Remove special ad-advice-info handling.
      (Fdefalias): Handle autoload definitions and new Qdefalias_fset_function.
      (Fsubr_arity): CSE.
      (Finteractive_form): Simplify.
      (Fquo): Don't insist on having at least 2 arguments.
      (Qdefalias_fset_function): New var.
      * lisp/emacs-lisp/advice.el (ad-set-advice-info): Set defalias-fset-function.
      (ad--defalias-fset): New function.
      (ad-safe-fset): Remove.
      (ad-make-freeze-definition): Use cl-letf*.
      32e5c58c
  10. 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
  11. 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
  12. 12 Sep, 2012 1 commit
    • Stefan Monnier's avatar
      Remove unread-command-char. · bfeae2cf
      Stefan Monnier authored
      * src/keyboard.c (read_char, requeued_events_pending_p, Finput_pending_p)
      (Fdiscard_input, quit_throw_to_read_char, init_keyboard)
      (syms_of_keyboard): Remove support for unread-command-char.
      * lisp/emacs-lisp/debug.el (debugger-outer-unread-command-char, debug)
      (debugger-env-macro): Remove support for unread-command-char.
      
      * lisp/ehelp.el (with-electric-help): Accept functions in
      electric-help-form-to-execute.
      (electric-help-execute-extended, electric-help-ctrl-x-prefix): Use it.
      And replace unread-command-char -> unread-command-events.
      
      * lisp/subr.el (set-temporary-overlay-map): Minimize slightly the impact of
      the temporary map re-appearing on emulation-mode-map-alists.
      
      * lisp/emacs-lisp/edebug.el (def-edebug-form-spec): Remove, it's been broken
      since 22.1.
      bfeae2cf
  13. 11 Sep, 2012 2 commits
    • Dmitry Antipov's avatar
      Discard killed buffers from deleted window and frame objects. · d73e321c
      Dmitry Antipov authored
      This reduces an amount of references to killed buffers and
      helps GC to reclaim them faster.
      * alloc.c (discard_killed_buffers): New function.
      (mark_object): Use it for deleted windows and frames.
      (mark_object): If symbol's value is set up for a killed buffer
      or deleted frame, restore it's global binding.
      * data.c (swap_in_global_binding): Add GC notice.
      (swap_in_symval_forwarding): Use convenient set_blv_where.
      * window.c (wset_next_buffers, wset_prev_buffers): Move ...
      * window.h: ... to here.
      d73e321c
    • Paul Eggert's avatar
      Simplify, document, and port floating-point. · c990426a
      Paul Eggert authored
      The porting part of this patch fixes bugs on non-IEEE platforms
      with frexp, ldexp, logb.
      * admin/CPP-DEFINES (HAVE_CBRT, HAVE_LOGB, logb): Remove.
      * configure.ac (logb, cbrt): Do not check for these functions,
      as they are not being used.
      * doc/lispref/numbers.texi (Float Basics, Arithmetic Operations, Math Functions):
      Document that / and mod (with floating point arguments), along
      with asin, acos, log, log10, expt and sqrt, return special values
      instead of signaling exceptions.
      (Float Basics): Document that logb operates on the absolute value
      of its argument.
      (Math Functions): Document that (log ARG BASE) also returns NaN if
      BASE is negative.  Document that (expt X Y) returns NaN if X is a
      finite negative number and Y a finite non-integer.
      * etc/NEWS: Document NaNs versus signaling-error change.
      * src/data.c, src/lisp.h (Qdomain_error, Qsingularity_error, Qunderflow_error):
      Now static.
      * src/floatfns.c: Simplify discussion of functions that Emacs doesn't
      support, by removing commented-out code and briefly listing the
      C89 functions excluded.  The commented-out stuff was confusing
      maintenance, e.g., we thought we needed cbrt but it was commented out.
      (logb): Remove decl; no longer needed.
      (isfinite): New macro, if not already supplied.
      (isnan): Don't replace any existing macro.
      (Ffrexp, Fldexp): Define even if !HAVE_COPYSIGN, as frexp and ldexp
      are present on all C89 platforms.
      (Ffrexp): Do not special-case zero, as frexp does the right thing
      for that case.
      (Flogb): Do not use logb, as it doesn't have the desired meaning
      on hosts that use non-base-2 floating point.  Instead, stick with
      frexp, which is C89 anyway.  Do not pass an infinity or a NaN to
      frexp, to avoid getting an unspecified result.
      c990426a
  14. 09 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Assume C89 or later for math functions. · f6196b87
      Paul Eggert authored
      This simplifies the code, and makes it a bit smaller and faster,
      and (most important) makes it easier to clean up signal handling
      since we can stop worring about floating-point exceptions in
      library code.  That was a problem before C89, but the problem
      went away many years ago on all practical Emacs targets.
      * configure.ac (frexp, fmod): Remove checks for these functions,
      as we now assume them.
      (FLOAT_CHECK_DOMAIN, HAVE_INVERSE_HYPERBOLIC, NO_MATHERR)
      (HAVE_EXCEPTION):
      Remove; no longer needed.
      * admin/CPP-DEFINES (HAVE_FMOD, HAVE_FREXP, FLOAT_CHECK_DOMAIN)
      (HAVE_INVERSE_HYPERBOLIC, NO_MATHERR): Remove.
      * src/data.c, src/image.c, src/lread.c, src/print.c:
      Don't include <math.h>; no longer needed.
      * src/data.c, src/floatfns.c (IEEE_FLOATING_POINT): Don't worry that it
      might be autoconfigured, as that never happens.
      * src/data.c (fmod):
      * src/doprnt.c (DBL_MAX_10_EXP):
      * src/print.c (DBL_DIG):
      Remove.  C89 or later always defines these.
      * src/floatfns.c (HAVE_MATHERR, FLOAT_CHECK_ERRNO, FLOAT_CHECK_DOMAIN)
      (in_float, float_error_arg, float_error_arg2, float_error_fn_name)
      (arith_error, domain_error, domain_error2):
      Remove all this pre-C89 cruft.  Do not include <errno.h> as that's
      no longer needed -- we simply return what C returns.  All uses removed.
      (IN_FLOAT, IN_FLOAT2): Remove.  All uses replaced with
      the wrapped code.
      (FLOAT_TO_INT, FLOAT_TO_INT2, range_error, range_error2):
      Remove.  All uses expanded, as these macros are no longer used
      more than once and are now more trouble than they're worth.
      (Ftan): Use tan, not sin / cos.
      (Flogb): Assume C89 frexp.
      (fmod_float): Assume C89 fmod.
      (matherr) [HAVE_MATHERR]: Remove; no longer needed.
      (init_floatfns): Remove.  All uses removed.
      f6196b87
  15. 07 Sep, 2012 2 commits
    • Chong Yidong's avatar
      Fix doc of local-variable-if-set-p. · 1a5432bc
      Chong Yidong authored
      * doc/lispref/variables.texi (Creating Buffer-Local): Fix description of
      local-variable-if-set-p.
      
      * src/data.c (Flocal_variable_if_set_p): Doc fix (Bug#10713).
      1a5432bc
    • 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
  16. 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
  17. 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
  18. 27 Aug, 2012 1 commit
    • Paul Eggert's avatar
      * composite.c, data.c, dbusbind.c, dired.c: Use bool for booleans. · de1339b0
      Paul Eggert authored
      * 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.
      de1339b0
  19. 26 Aug, 2012 1 commit
    • Paul Eggert's avatar
      Remove unused external symbols. · b52d6985
      Paul Eggert authored
      * data.c (Qcons, Qfloat, Qmisc, Qstring, Qvector):
      * window.c (Qwindow_valid_p, decode_valid_window):
      Now static, not extern.
      * data.c (Qinterval): Remove; unused.
      (syms_of_data): Do not define 'interval'.
      * lisp.h (Qinteger, Qstring, Qmisc, Qvector, Qfloat, Qcons):
      * window.h (decode_valid_window):
      Remove decls.
      b52d6985
  20. 20 Aug, 2012 1 commit
  21. 19 Aug, 2012 1 commit
  22. 18 Aug, 2012 1 commit
    • Paul Eggert's avatar
      * buffer.h (BSET): Remove. · 39eb03f1
      Paul Eggert authored
      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
      39eb03f1
  23. 17 Aug, 2012 1 commit
  24. 14 Aug, 2012 1 commit
    • Chong Yidong's avatar
      More doc fixes. · 4abcdac8
      Chong Yidong authored
      * lisp/minibuffer.el (read-file-name): Doc fix.
      
      * character.c (Fcharacterp): Doc fix (Bug#12076).
      
      * data.c (Findirect_variable): Doc fix (Bug#11040).
      
      * editfns.c (Fsave_current_buffer): Doc fix (Bug#11542).
      
      Fixes: debbugs:11542 debbugs:11040 debbugs:12076 debbugs:10881
      4abcdac8
  25. 13 Aug, 2012 1 commit
  26. 07 Aug, 2012 2 commits
    • Dmitry Antipov's avatar
      Revert and cleanup Lisp_Cons, Lisp_Misc and Lisp_Symbol things. · c644523b
      Dmitry Antipov authored
      * src/lisp.h (struct Lisp_Symbol): Change xname to meaningful
      name since all xname users are fixed long time ago.  Do not use
      INTERNAL_FIELD.
      (set_symbol_name, set_symbol_function, set_symbol_plist):
      (set_symbol_next, set_overlay_plist): New function.
      (struct Lisp_Cons): Do not use INTERNAL_FIELD.
      (struct Lisp_Overlay): Likewise.
      (CVAR, MVAR, SVAR): Remove.
      * src/alloc.c, src/buffer.c, src/buffer.h, src/bytecode.c:
      * src/cmds.c, src/data.c, src/doc.c, src/eval.c, src/fns.c:
      * src/keyboard.c, src/lread.c, src/nsselect.m, src/xterm.c:
      Adjust users.
      * src/.gdbinit: Change to use name field of struct Lisp_Symbol
      where appropriate.
      * admin/coccinelle/overlay.cocci, admin/coccinelle/symbol.cocci:
      Remove.
      c644523b
    • Dmitry Antipov's avatar
      Drop FGET and revert read access to Lisp_Objects slots of struct frame. · e69b0960
      Dmitry Antipov authored
      * frame.h (FGET): Remove.
      (struct frame): Do not use INTERNAL_FIELD.
      * buffer.c, data.c, dispnew.c, dosfns.c, eval.c, fontset.c, frame.c:
      * fringe.c, gtkutil.c, minibuf.c, msdos.c, nsfns.m, nsmenu.m, nsterm.m:
      * print.c, term.c, w32fns.c, w32menu.c, w32term.c, window.c, window.h:
      * xdisp.c, xfaces.c, xfns.c, xmenu.c, xterm.c: Adjust users.
      e69b0960
  27. 06 Aug, 2012 1 commit
    • Dmitry Antipov's avatar
      Separate read and write access to Lisp_Object slots of struct frame. · edd74c35
      Dmitry Antipov authored
      * frame.h (FGET, FSET): New macros similar to AREF and ASET.
      * buffer.c, data.c, dispnew.c, dosfns.c, eval.c, fontset.c, frame.c:
      * fringe.c, gtkutil.c, minibuf.c, msdos.c, nsfns.m, nsmenu.m, nsterm.m:
      * print.c, term.c, w32fns.c, w32menu.c, w32term.c, window.c, window.h:
      * xdisp.c, xfaces.c, xfns.c, xmenu.c, xterm.c: Adjust users.
      edd74c35
  28. 03 Aug, 2012 1 commit
    • Paul Eggert's avatar
      Remove unnecessary casts involving pointers. · 98c6f1e3
      Paul Eggert authored
      These casts are no longer needed now that we assume C89 or later,
      since they involve casting to or from void *.
      * alloc.c (make_pure_string, make_pure_c_string, pure_cons)
      (make_pure_float, make_pure_vector):
      * lisp.h (SAFE_ALLOCA, SAFE_ALLOCA_LISP):
      * macros.c (Fstart_kbd_macro):
      * menu.c (find_and_return_menu_selection):
      * minibuf.c (read_minibuf_noninteractive):
      * sysdep.c (closedir):
      * xdisp.c (x_produce_glyphs):
      * xfaces.c (compare_fonts_by_sort_order):
      * xfns.c (x_real_positions, select_visual):
      * xselect.c (x_stop_queuing_selection_requests)
      (x_get_window_property, x_get_window_property_as_lisp_data):
      * xterm.c (x_set_frame_alpha, x_find_modifier_meanings):
      Remove unnecessary pointer casts.
      * alloc.c (record_xmalloc): New function.
      * lisp.h (record_xmalloc): New decl.
      (SAFE_ALLOCA): Now takes just one arg -- the size -- and acts
      more like a function.  This is because the pointer cast is not
      needed.  All uses changed.
      * print.c (print_string, print_error_message): Avoid length recalc.
      98c6f1e3
  29. 01 Aug, 2012 1 commit
    • Dmitry Antipov's avatar
      Use INTERNAL_FIELD for symbols. · 8271d590
      Dmitry Antipov authored
      * src/lisp.h (SVAR): New macro.  Adjust users.
      * src/alloc.c, src/bytecode.c, src/cmds.c, src/data.c, src/doc.c, src/eval.c:
      * src/fns.c, src/keyboard.c, src/lread.c, src/xterm.c: Users changed.
      * admin/coccinelle/symbol.cocci: Semantic patch to replace direct
      access to Lisp_Object members of struct Lisp_Symbol to SVAR.
      8271d590
  30. 31 Jul, 2012 1 commit
    • Dmitry Antipov's avatar
      Generalize INTERNAL_FIELD between buffers, keyboards and frames. · e34f7f79
      Dmitry Antipov authored
      * src/lisp.h (INTERNAL_FIELD): New macro.
      * src/buffer.h (BUFFER_INTERNAL_FIELD): Removed.
      (BVAR): Change to use INTERNAL_FIELD.
      * src/keyboard.h (KBOARD_INTERNAL_FIELD): Likewise.
      (KVAR): Change to use INTERNAL_FIELD.
      * src/frame.h (FVAR): New macro.
      (struct frame): Use INTERNAL_FIELD for all Lisp_Object fields.
      * src/alloc.c, src/buffer.c, src/data.c, src/dispnew.c, src/dosfns.c
      * src/eval.c, src/frame.c, src/fringe.c, src/gtkutil.c, src/minibuf.c
      * src/nsfns.m, src/nsterm.m, src/print.c, src/term.c, src/w32fns.c
      * src/w32menu.c, src/w32term.c, src/window.c, src/window.h, src/xdisp.c
      * src/xfaces.c, src/xfns.c, src/xmenu.c, src/xterm.c: Users changed.
      * admin/coccinelle/frame.cocci: Semantic patch to replace direct
      access to Lisp_Object members of struct frame to FVAR.
      e34f7f79
  31. 30 Jul, 2012 1 commit
  32. 29 Jul, 2012 1 commit
  33. 26 Jul, 2012 1 commit
    • Stefan Monnier's avatar
      Autoload more carefully from Lisp. Follow aliases for function properties. · 7abaf5cc
      Stefan Monnier authored
      * lisp/subr.el (autoloadp): New function.
      (symbol-file): Use it.
      (function-get): New function.
      * lisp/emacs-lisp/macroexp.el (macroexp--expand-all): Use function-get and
      autoload-do-load.
      * lisp/emacs-lisp/lisp-mode.el (lisp-font-lock-syntactic-face-function)
      (lisp-indent-function):
      * lisp/emacs-lisp/gv.el (gv-get):
      * lisp/emacs-lisp/edebug.el (get-edebug-spec, edebug-basic-spec):
      * lisp/emacs-lisp/byte-opt.el (byte-optimize-form):
      * lisp/emacs-lisp/bytecomp.el (byte-compile-arglist-warn):
      * lisp/emacs-lisp/autoload.el (make-autoload, autoload-print-form):
      Use function-get.
      * lisp/emacs-lisp/cl.el: Don't propagate function properties any more.
      
      * src/eval.c (Fautoload_do_load): Rename from do_autoload, export to Lisp,
      add argument, tune behavior, and adjust all callers.
      
      * lisp/speedbar.el (speedbar-add-localized-speedbar-support):
      * lisp/emacs-lisp/disass.el (disassemble-internal):
      * lisp/desktop.el (desktop-load-file):
      * lisp/help-fns.el (help-function-arglist, find-lisp-object-file-name)
      (describe-function-1):
      * lisp/emacs-lisp/find-func.el (find-function-noselect):
      * lisp/emacs-lisp/elp.el (elp-instrument-function):
      * lisp/emacs-lisp/advice.el (ad-has-proper-definition):
      * lisp/apropos.el (apropos-safe-documentation, apropos-macrop):
      * lisp/emacs-lisp/debug.el (debug-on-entry):
      * lisp/emacs-lisp/cl-macs.el (cl-compiler-macroexpand):
      * lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand):
      * lisp/calc/calc.el (name): Use autoloadp & autoload-do-load.
      7abaf5cc
  34. 19 Jul, 2012 2 commits
    • Paul Eggert's avatar
      * buffer.h (FOR_EACH_BUFFER): Rename from 'for_each_buffer'. · 52b852c7
      Paul Eggert authored
      (FOR_EACH_PER_BUFFER_OBJECT_AT): Rename from
      'for_each_per_buffer_object_at'.
      All uses changed.  It's better to use upper-case for macros that
      cannot be implemented as functions, to give the reader a clue
      that they're special.
      52b852c7
    • Dmitry Antipov's avatar
      New macro to iterate over all buffers, miscellaneous cleanups. · d17337e5
      Dmitry Antipov authored
      * lisp.h (all_buffers): Remove declaration.
      * buffer.h (all_buffers): Add declaration, with comment.
      (for_each_buffer): New macro.
      * alloc.c (Fgarbage_collect, mark_object): Use it.
      * buffer.c (Fkill_buffer, Fbuffer_swap_text, Fset_buffer_multibyte)
      (init_buffer): Likewise.
      * data.c (Fset_default): Likewise.
      * coding.c (code_conversion_restore): Remove redundant check
      for dead buffer.
      * buffer.c (Fkill_buffer): Likewise.  Remove obsolete comment.
      d17337e5
  35. 18 Jul, 2012 1 commit
    • Dmitry Antipov's avatar
      Return more descriptive data from Fgarbage_collect. · 3ab6e069
      Dmitry Antipov authored
      Suggested by Stefan Monnier in
      http://lists.gnu.org/archive/html/emacs-devel/2012-07/msg00369.html.
      * src/alloc.c (bounded_number): New function.
      (total_buffers, total_vectors): New variable.
      (total_string_size): Rename to total_string_bytes, adjust users.
      (total_vector_size): Rename to total_vector_bytes, adjust users.
      (sweep_vectors): Account total_vectors and total_vector_bytes.
      (Fgarbage_collect): New return value.  Adjust documentation.
      (gc_sweep): Account total_buffers.
      (Fmemory_free, Fmemory_use_counts): Use bounded_number.
      (VECTOR_SIZE): Remove.
      * src/data.c (Qfloat, Qvector, Qsymbol, Qstring, Qcons): Make global.
      (Qinterval, Qmisc): New symbols.
      (syms_of_data): Initialize them.
      * src/lisp.h (Qinterval, Qsymbol, Qstring, Qmisc, Qvector, Qfloat)
      (Qcons, Qbuffer): New declarations.
      * lisp/emacs-lisp/chart.el (chart-emacs-storage): Change to
      reflect new format of data returned by Fgarbage_collect.
      3ab6e069