+2013-07-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix bug where Emacs tries to close a file twice (Bug#14839).
+ * fileio.c (close_file_unwind): Don't close if FD is negative;
+ this can happen when unwinding a zapped file descriptor.
+ (Finsert_file_contents): Unwind-protect the fd before the point marker,
+ in case Emacs runs out of memory between the two unwind-protects.
+ Don't trash errno when closing FD.
+ Zap the FD in the specpdl when closing it, instead of deferring
+ the removal of the unwind-protect; this fixes a bug where a child
+ function unwinds the stack past us.
+
+ New unwind-protect flavors to better type-check C callbacks.
+ This also lessens the need to write wrappers for callbacks,
+ and the need for make_save_pointer.
+ * alloca.c (free_save_value):
+ * atimer.c (run_all_atimers):
+ Now extern.
+ * alloc.c (safe_alloca_unwind):
+ * atimer.c (unwind_stop_other_atimers):
+ * keyboard.c (cancel_hourglass_unwind) [HAVE_WINDOW_SYSTEM]:
+ * menu.c (cleanup_popup_menu) [HAVE_NS]:
+ * minibuf.c (choose_minibuf_frame_1):
+ * process.c (make_serial_process_unwind):
+ * xdisp.h (pop_message_unwind):
+ * xselect.c (queue_selection_requests_unwind):
+ Remove no-longer-needed wrapper. All uses replaced by the wrappee.
+ * alloca.c (record_xmalloc):
+ Prefer record_unwind_protect_ptr to record_unwind_protect with
+ make_save_pointer.
+ * alloca.c (Fgarbage_collect):
+ Prefer record_unwind_protect_void to passing a dummy.
+ * buffer.c (restore_buffer):
+ * window.c (restore_window_configuration):
+ * xfns.c, w32fns.c (do_unwind_create_frame)
+ New wrapper. All record-unwind uses of wrappee changed.
+ * buffer.c (set_buffer_if_live):
+ * callproc.c (call_process_cleanup, delete_temp_file):
+ * coding.c (code_conversion_restore):
+ * dired.c (directory_files_internal_w32_unwind) [WINDOWSNT]:
+ * editfns.c (save_excursion_restore)
+ (subst_char_in_region_unwind, subst_char_in_region_unwind_1)
+ (save_restriction_restore):
+ * eval.c (restore_stack_limits, un_autoload):
+ * fns.c (require_unwind):
+ * keyboard.c (recursive_edit_unwind, tracking_off):
+ * lread.c (record_load_unwind, load_warn_old_style_backquotes):
+ * macros.c (pop_kbd_macro, restore_menu_items):
+ * nsfns.m (unwind_create_frame):
+ * print.c (print_unwind):
+ * process.c (start_process_unwind):
+ * search.c (unwind_set_match_data):
+ * window.c (select_window_norecord, select_frame_norecord):
+ * xdisp.c (unwind_with_echo_area_buffer, unwind_format_mode_line)
+ (fast_set_selected_frame):
+ * xfns.c, w32fns.c (unwind_create_tip_frame):
+ Return void, not a dummy Lisp_Object. All uses changed.
+ * buffer.h (set_buffer_if_live): Move decl here from lisp.h.
+ * callproc.c (call_process_kill):
+ * fileio.c (restore_point_unwind, decide_coding_unwind)
+ (build_annotations_unwind):
+ * insdel.c (Fcombine_after_change_execute_1):
+ * keyboard.c (read_char_help_form_unwind):
+ * menu.c (unuse_menu_items):
+ * minibuf.c (run_exit_minibuf_hook, read_minibuf_unwind):
+ * sound.c (sound_cleanup):
+ * xdisp.c (unwind_redisplay):
+ * xfns.c (clean_up_dialog):
+ * xselect.c (x_selection_request_lisp_error, x_catch_errors_unwind):
+ Accept no args and return void, instead of accepting and returning
+ a dummy Lisp_Object. All uses changed.
+ * cygw32.c (fchdir_unwind):
+ * fileio.c (close_file_unwind):
+ * keyboard.c (restore_kboard_configuration):
+ * lread.c (readevalllop_1):
+ * process.c (wait_reading_process_output_unwind):
+ Accept int and return void, rather than accepting an Emacs integer
+ and returning a dummy object. In some cases this fixes an
+ unlikely bug when the corresponding int is outside Emacs integer
+ range. All uses changed.
+ * dired.c (directory_files_internal_unwind):
+ * fileio.c (do_auto_save_unwind):
+ * gtkutil.c (pop_down_dialog):
+ * insdel.c (reset_var_on_error):
+ * lread.c (load_unwind):
+ * xfns.c (clean_up_file_dialog):
+ * xmenu.c, nsmenu.m (pop_down_menu):
+ * xmenu.c (cleanup_widget_value_tree):
+ * xselect.c (wait_for_property_change_unwind):
+ Accept pointer and return void, rather than accepting an Emacs
+ save value encapsulating the pointer and returning a dummy object.
+ All uses changed.
+ * editfns.c (Fformat): Update the saved pointer directly via
+ set_unwind_protect_ptr rather than indirectly via make_save_pointer.
+ * eval.c (specpdl_func): Remove. All uses replaced by definiens.
+ (unwind_body): New function.
+ (record_unwind_protect): First arg is now a function returning void,
+ not a dummy Lisp_Object.
+ (record_unwind_protect_ptr, record_unwind_protect_int)
+ (record_unwind_protect_void): New functions.
+ (unbind_to): Support SPECPDL_UNWIND_PTR etc.
+ * fileio.c (struct auto_save_unwind): New type.
+ (do_auto_save_unwind): Use it.
+ (do_auto_save_unwind_1): Remove; subsumed by new do_auto_save_unwind.
+ * insdel.c (struct rvoe_arg): New type.
+ (reset_var_on_error): Use it.
+ * lisp.h (SPECPDL_UNWIND_PTR, SPECPDL_UNWIND_INT, SPECPDL_UNWIND_VOID):
+ New constants.
+ (specbinding_func): Remove; there are now several such functions.
+ (union specbinding): New members unwind_ptr, unwind_int, unwind_void.
+ (set_unwind_protect_ptr): New function.
+ * xselect.c: Remove unnecessary forward decls, to simplify maintenance.
+
+ Be simpler and more consistent about reporting I/O errors.
+ * fileio.c (Fcopy_file, Finsert_file_contents, Fwrite_region):
+ Say "Read error" and "Write error", rather than "I/O error", or
+ "IO error reading", or "IO error writing", when a read or write
+ error occurs.
+ * process.c (Fmake_network_process, wait_reading_process_output)
+ (send_process, Fprocess_send_eof, wait_reading_process_output):
+ Capitalize diagnostics consistently. Put "failed foo" at the
+ start of the diagnostic, so that we don't capitalize the
+ function name "foo". Consistently say "failed" for such
+ diagnostics.
+ * sysdep.c, w32.c (serial_open): Now accepts Lisp string, not C string.
+ All callers changed. This is so it can use report_file_error.
+ * sysdep.c (serial_open, serial_configure): Capitalize I/O
+ diagnostics consistently as above.
+
+ * fileio.c (report_file_errno): Fix errno reporting bug.
+ If the file name is neither null nor a pair, package it up as a
+ singleton list. All callers changed, both to this function and to
+ report_file_error. This fixes a bug where the memory allocator
+ invoked by list1 set errno so that the immediately following
+ report_file_error reported the wrong errno value.
+
+ Fix minor problems found by --enable-gcc-warnings.
+ * frame.c (Fhandle_focus_in, Fhandle_focus_out): Return a value.
+ * keyboard.c (kbd_buffer_get_event): Remove unused local.
+
+2013-07-16 Jan Djärv <jan.h.d@swipnet.se>
+
+ * xterm.c (x_focus_changed): Always generate FOCUS_IN_EVENT.
+ Set event->arg to Qt if switch-event shall be generated.
+ Generate FOCUS_OUT_EVENT for FocusOut if this is the focused frame.
+
+ * termhooks.h (enum event_kind): Add FOCUS_OUT_EVENT.
+
+ * nsterm.m (windowDidResignKey): If this is the focused frame, generate
+ FOCUS_OUT_EVENT.
+
+ * keyboard.c (Qfocus_in, Qfocus_out): New static objects.
+ (make_lispy_focus_in, make_lispy_focus_out): Declare and define.
+ (kbd_buffer_get_event): For FOCUS_IN, make a focus_in event if no
+ switch frame event is made. Check ! NILP (event->arg) if X11 (moved
+ from xterm.c). Make focus_out event for FOCUS_OUT_EVENT if NS or X11
+ and there is a focused frame.
+ (head_table): Add focus-in and focus-out.
+ (keys_of_keyboard): Add focus-in and focus-out to Vspecial_event_map,
+ bind to handle-focus-in/out.
+
+ * frame.c (Fhandle_focus_in, Fhandle_focus_out): New functions.
+ (Fhandle_switch_frame): Call Fhandle_focus_in.
+ (syms_of_frame): defsubr handle-focus-in/out.
+
2013-07-16 Paul Eggert <eggert@cs.ucla.edu>
Fix porting bug to older POSIXish platforms (Bug#14862).