annotate tests/sigpipe.c @ 5013:ae48681c47fa

changes to VOID_TO_LISP et al. -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-08 Ben Wing <ben@xemacs.org> * casetab.c (compute_canon_mapper): * casetab.c (initialize_identity_mapper): * casetab.c (compute_up_or_eqv_mapper): * casetab.c (recompute_case_table): * casetab.c (set_case_table): * chartab.c (copy_mapper): * chartab.c (copy_char_table_range): * chartab.c (get_range_char_table_1): * console.c (find_nonminibuffer_frame_not_on_console_predicate): * console.c (find_nonminibuffer_frame_not_on_console): * console.c (nuke_all_console_slots): * device.c: * device.c (find_nonminibuffer_frame_not_on_device_predicate): * device.c (find_nonminibuffer_frame_not_on_device): * dialog-msw.c (dialog_proc): * dialog-msw.c (handle_question_dialog_box): * dialog-x.c (maybe_run_dbox_text_callback): * eval.c: * eval.c (safe_run_hook_trapping_problems_1): * eval.c (safe_run_hook_trapping_problems): * event-msw.c: * event-msw.c (mswindows_wnd_proc): * event-msw.c (mswindows_find_frame): * faces.c (update_face_inheritance_mapper): * frame-msw.c (mswindows_init_frame_1): * frame-msw.c (mswindows_get_mouse_position): * frame-msw.c (mswindows_get_frame_parent): * glade.c (connector): * glade.c (Fglade_xml_signal_connect): * glade.c (Fglade_xml_signal_autoconnect): * glade.c (Fglade_xml_textdomain): * glyphs-msw.c (mswindows_subwindow_instantiate): * glyphs-msw.c (mswindows_widget_instantiate): * glyphs.c (check_instance_cache_mapper): * glyphs.c (check_window_subwindow_cache): * glyphs.c (check_image_instance_structure): * gui-x.c (snarf_widget_value_mapper): * gui-x.c (popup_selection_callback): * gui-x.c (button_item_to_widget_value): * keymap.c (map_keymap_mapper): * keymap.c (Fmap_keymap): * menubar-gtk.c (__torn_off_sir): * menubar-gtk.c (__activate_menu): * menubar-gtk.c (menu_convert): * menubar-gtk.c (__generic_button_callback): * menubar-gtk.c (menu_descriptor_to_widget_1): * menubar-msw.c: * menubar-msw.c (EMPTY_ITEM_ID): * menubar-x.c (menu_item_descriptor_to_widget_value_1): * menubar-x.c (pre_activate_callback): * menubar-x.c (command_builder_operate_menu_accelerator): * menubar-x.c (command_builder_find_menu_accelerator): * print.c (print_internal): * process-unix.c (close_process_descs_mapfun): * process.c (get_process_from_usid): * process.c (init_process_io_handles): * profile.c (sigprof_handler): * profile.c (get_profiling_info_timing_maphash): * profile.c (Fget_profiling_info): * profile.c (set_profiling_info_timing_maphash): * profile.c (mark_profiling_info_maphash): * scrollbar-msw.c (mswindows_create_scrollbar_instance): * scrollbar-msw.c (mswindows_free_scrollbar_instance): * scrollbar-msw.c (mswindows_handle_scrollbar_event): * specifier.c (recompute_cached_specifier_everywhere_mapfun): * specifier.c (recompute_cached_specifier_everywhere): * syntax.c (copy_to_mirrortab): * syntax.c (copy_if_not_already_present): * syntax.c (update_just_this_syntax_table): * text.c (new_dfc_convert_now_damn_it): * text.h (LISP_STRING_TO_EXTERNAL): * tooltalk.c: * tooltalk.c (tooltalk_message_callback): * tooltalk.c (tooltalk_pattern_callback): * tooltalk.c (Fcreate_tooltalk_message): * tooltalk.c (Fcreate_tooltalk_pattern): * ui-byhand.c (__generic_toolbar_callback): * ui-byhand.c (generic_toolbar_insert_item): * ui-byhand.c (__emacs_gtk_ctree_recurse_internal): * ui-byhand.c (Fgtk_ctree_recurse): * ui-gtk.c (__internal_callback_destroy): * ui-gtk.c (__internal_callback_marshal): * ui-gtk.c (Fgtk_signal_connect): * ui-gtk.c (gtk_type_to_lisp): * ui-gtk.c (lisp_to_gtk_type): * ui-gtk.c (lisp_to_gtk_ret_type): * lisp-disunion.h: * lisp-disunion.h (NON_LVALUE): * lisp-union.h: * lisp.h (LISP_HASH): Rename: LISP_TO_VOID -> STORE_LISP_IN_VOID VOID_TO_LISP -> GET_LISP_FROM_VOID These new names are meant to clearly identify that the Lisp object is the source and void the sink, and that they can't be used the other way around -- they aren't exact opposites despite the old names. The names are also important given the new functions created just below. Also, clarify comments in lisp-union.h and lisp-disunion.h about the use of the functions. * lisp.h: New functions STORE_VOID_IN_LISP and GET_VOID_FROM_LISP. These are different from the above in that the source is a void * (previously, you had to use make_opaque_ptr()). * eval.c (restore_lisp_object): * eval.c (record_unwind_protect_restoring_lisp_object): * eval.c (struct restore_int): * eval.c (restore_int): * eval.c (record_unwind_protect_restoring_int): * eval.c (free_pointer): * eval.c (record_unwind_protect_freeing): * eval.c (free_dynarr): * eval.c (record_unwind_protect_freeing_dynarr): * eval.c (unbind_to_1): Use STORE_VOID_IN_LISP and GET_VOID_FROM_LISP to eliminate the use of make_opaque_ptr() and mostly eliminate Lisp consing entirely in the use of these various record_unwind_protect_* functions as well as internal_bind_* (e.g. internal_bind_int). * tests.c: * tests.c (Ftest_store_void_in_lisp): * tests.c (syms_of_tests): * tests.c (vars_of_tests): Add an C-assert-style test to test STORE_VOID_IN_LISP and GET_VOID_FROM_LISP to make sure the same value comes back that was put in.
author Ben Wing <ben@xemacs.org>
date Mon, 08 Feb 2010 06:42:16 -0600
parents 679041362cd4
children 308d34e9f07d
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1 /* code is all from loser.c and loser.el by Mly
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2
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3 Copyright (C) 2002 Richard Mlynarik <mly@pobox.com>
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4
4739
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to the Free
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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20 02110-1301, USA.
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21
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22 Commentary:
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23
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24 Compile this file. Run it in the background giving it a command line
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25 argument PORT which is a positive integer 1024 < PORT < 32768 (avoid the
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26 numbers assigned in /etc/services).
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27
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28 Then start up a fresh (you're going to crash) XEmacs. Execute the following
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29
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30 (defun lose (port)
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31 (interactive "nUrk: ")
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32 (require 'comint)
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33 (while t
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34 (condition-case e
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35 (let* ((name "*lose*")
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36 (b (get-buffer-create name)))
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37 (switch-to-buffer b)
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38 (comint-mode)
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39 (comint-exec b name (cons "127.0.0.1" port) nil '())
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40 (process-send-string (get-buffer-process b) "\377\373\001")
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41 (process-send-string (get-buffer-process b) "\377\373\001"))
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42 (error (message "URK: %s" e)) (sit-for 1))))
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43
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44 Then M-x lose RET PORT RET and you lose big (in XEmacs 21.1, anyway).
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45 Note: the error messages are proper functioning. What should eventually
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46 happen after a number of SIGPIPEs is that you get a SIGSEGV and life is
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47 bad and XEmacs is dead.
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48 */
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49
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50 #include <arpa/inet.h>
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51
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52 int
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53 main (int argc, char **argv)
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54 {
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55 struct sockaddr_in junk;
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56 int s;
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57
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58 memset (&junk, 0, sizeof (junk));
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59
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60 junk.sin_family = AF_INET;
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61 junk.sin_addr.s_addr = htonl (INADDR_ANY); /* un*x sucks */
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62 junk.sin_port = htons (atoi (argv[1])); /* un*x blows */
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63
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64 s = socket (PF_INET, SOCK_STREAM, 0);
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65
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66 bind (s, (struct sockaddr *)&junk, sizeof (junk));
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67
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68 listen (s, 1);
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69
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70 for (;;)
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71 {
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72 int loser = accept (s, NULL, 0);
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73 close (loser);
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74 }
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75 }
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76