annotate netinstall/autoload.c @ 4570:e6a7054a9c30

Add check-coding-systems-region, test it and others, fix some bugs. tests/ChangeLog addition: 2008-12-28 Aidan Kehoe <kehoea@parhasard.net> * automated/query-coding-tests.el: Add tests for #'unencodable-char-position, #'check-coding-systems-region, #'encode-coding-char. Remove some debugging statements. lisp/ChangeLog addition: 2008-12-28 Aidan Kehoe <kehoea@parhasard.net> * coding.el (query-coding-region): (query-coding-string): Make these defsubsts, they're short enough and they're called explicitly rarely enough that it make some sense. The alternative would be compiler macros that avoid the binding of the arguments. (unencodable-char-position): Document where the docstring and API are from. Correct a special case for zero--check-argument-type returns nil when it succeeds, we can't usefully chain its result in an and here. (check-coding-systems-region): New. API taken from GNU; docstring and implementation are independent. (encode-coding-char): Add an optional third argument, as used by recent GNU. Document the origen of the docstring. (default-query-coding-region): Add a short docstring to the non-Mule implementation of this function. * unicode.el: Don't set the query-coding-function property for unicode coding systems if we're on non-mule. Unintern unicode-query-coding-region, unicode-query-coding-skip-chars-arg in the same context.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 28 Dec 2008 22:51:14 +0000
parents 3078fd1074e8
children
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1 /*
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2 * Copyright (c) 2000, Red Hat, Inc.
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; either version 2 of the License, or
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7 * (at your option) any later version.
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8 *
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9 * A copy of the GNU General Public License can be found at
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10 * http://www.gnu.org/
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11 *
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12 * Written by DJ Delorie <dj@cygnus.com>
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13 *
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14 */
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15
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16 #include "win32.h"
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17
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18 typedef struct {
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19 char *name;
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20 HINSTANCE handle;
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21 } DllInfo;
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22
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23 #define DLL(n) static DllInfo n ## _info __asm__ (#n "_info") = { #n, 0}
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24
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25 #define Auto(dll, func, size) \
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26 __asm__ ("\t.data"); \
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27 __asm__ ("\t.global\t_" #func "@" #size); \
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28 __asm__ ("_" #func "@" #size ":"); \
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29 __asm__ ("\tcall\tautoload_common"); \
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30 __asm__ ("\t.long\t" #dll "_info"); \
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31 __asm__ ("\t.ascii\t\"" #func "\\0\"")
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32
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33 DLL (wininet);
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34
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35 Auto (wininet, InternetAttemptConnect, 4);
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36 Auto (wininet, InternetCloseHandle, 4);
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37 Auto (wininet, InternetGetLastResponseInfoA, 12);
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38 Auto (wininet, InternetOpenA, 20);
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39 Auto (wininet, InternetOpenUrlA, 24);
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40 Auto (wininet, InternetReadFile, 16);
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41 Auto (wininet, InternetSetOptionA, 16);
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42 Auto (wininet, InternetQueryOptionA, 16);
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43 Auto (wininet, HttpQueryInfoA, 20);
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44 Auto (wininet, HttpSendRequestA, 20);
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45
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46 typedef struct {
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47 DllInfo *dll;
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48 char name[100];
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49 } AutoEntry;
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50
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51 static void autoload_common () __asm__ ("autoload_common");
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52
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53 static void
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54 autoload_common (int x)
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55 {
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56 int fp, rel;
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57 unsigned char *proc;
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58 HINSTANCE h;
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59 AutoEntry *a;
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60
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61 a = *(AutoEntry **)(&x - 1);
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62 if (a->dll->handle == 0)
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63 {
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64 h = LoadLibrary (a->dll->name);
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65 a->dll->handle = h;
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66 }
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67 fp = (int) GetProcAddress (a->dll->handle, a->name);
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68 proc = ((unsigned char *)a) - 5;
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69 rel = fp - (int)(a); /* now it's a relative call */
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70 *proc++ = 0xe9; /* jump near 32-bit relative */
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71 *proc++ = rel;
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72 *proc++ = rel>>8;
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73 *proc++ = rel>>16;
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74 *proc++ = rel>>24;
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75
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76 *(int *)(&x-1) = (int)proc-5;
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77 }