annotate tests/sigpipe.c @ 5327:d1b17a33450b

Move the heavy lifting from cl-seq.el to C. src/ChangeLog addition: 2010-12-30 Aidan Kehoe <kehoea@parhasard.net> Move the heavy lifting from cl-seq.el to C, finally making those functions first-class XEmacs citizens, with circularity checking, built-in support for tests other than #'eql, and as much compatibility with current Common Lisp as Paul Dietz' tests require. * fns.c (check_eq_nokey, check_eq_key, check_eql_nokey) (check_eql_key, check_equal_nokey, check_equal_key) (check_equalp_nokey, check_equalp_key, check_string_match_nokey) (check_string_match_key, check_other_nokey, check_other_key) (check_if_nokey, check_if_key, check_match_eq_key) (check_match_eql_key, check_match_equal_key) (check_match_equalp_key, check_match_other_key): New. These are basically to provide function pointers to be used by Lisp functions that take TEST, TEST-NOT and KEY arguments. (get_check_match_function_1, get_check_test_function) (get_check_match_function): These functions work out which of the previous list of functions to use, given the keywords supplied by the user. (count_with_tail): New. This is the bones of #'count. (list_count_from_end, string_count_from_end): Utility functions for #'count. (Fcount): New, moved from cl-seq.el. (list_position_cons_before): New. The implementation of #'member*, and important in implementing various other functions. (FmemberX, Fadjoin, FassocX, FrassocX, Fposition, Ffind) (FdeleteX, FremoveX, Fdelete_duplicates, Fremove_duplicates) (Fnsubstitute, Fsubstitute, Fsublis, Fnsublis, Fsubst, Fnsubst) (Ftree_equal, Fmismatch, Fsearch, Fintersection, Fnintersection) (Fsubsetp, Fset_difference, Fnset_difference, Fnunion, Funion) (Fset_exclusive_or, Fnset_exclusive_or): New, moved here from cl-seq.el. (position): New. The implementation of #'find and #'position. (list_delete_duplicates_from_end, subst, sublis, nsublis) (tree_equal, mismatch_from_end, mismatch_list_list) (mismatch_list_string, mismatch_list_array) (mismatch_string_array, mismatch_string_string) (mismatch_array_array, get_mismatch_func): Helper C functions for the Lisp-visible functions. (venn, nvenn): New. The implementation of the main Lisp functions that treat lists as sets. lisp/ChangeLog addition: 2010-12-30 Aidan Kehoe <kehoea@parhasard.net> * cl-seq.el: Move the heavy lifting from this file to C. Dump the cl-parsing-keywords macro, but don't use defun* for the functions we define that do take keywords, dynamic scope lossage makes that not practical. * subr.el (sort, fillarray): Move these aliases here. (map-plist): #'nsublis is now built-in, but at this point #'eql isn't necessarily available as a test; use #'eq. * obsolete.el (cl-delete-duplicates): Make this available for old compiler macros and old code. (memql): Document that this is equivalent to #'member*, and worse. * cl.el (adjoin, subst): Removed. These are in C.
author Aidan Kehoe <kehoea@parhasard.net>
date Thu, 30 Dec 2010 01:59:52 +0000
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