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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 /* ***** BEGIN LICENSE BLOCK ***** |
| 3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 4 * |
| 5 * The contents of this file are subject to the Mozilla Public License Version |
| 6 * 1.1 (the "License"); you may not use this file except in compliance with |
| 7 * the License. You may obtain a copy of the License at |
| 8 * http://www.mozilla.org/MPL/ |
| 9 * |
| 10 * Software distributed under the License is distributed on an "AS IS" basis, |
| 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 12 * for the specific language governing rights and limitations under the |
| 13 * License. |
| 14 * |
| 15 * The Original Code is the Netscape Portable Runtime (NSPR). |
| 16 * |
| 17 * The Initial Developer of the Original Code is |
| 18 * Netscape Communications Corporation. |
| 19 * Portions created by the Initial Developer are Copyright (C) 1998-2000 |
| 20 * the Initial Developer. All Rights Reserved. |
| 21 * |
| 22 * Contributor(s): |
| 23 * |
| 24 * Alternatively, the contents of this file may be used under the terms of |
| 25 * either the GNU General Public License Version 2 or later (the "GPL"), or |
| 26 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 27 * in which case the provisions of the GPL or the LGPL are applicable instead |
| 28 * of those above. If you wish to allow use of your version of this file only |
| 29 * under the terms of either the GPL or the LGPL, and not to allow others to |
| 30 * use your version of this file under the terms of the MPL, indicate your |
| 31 * decision by deleting the provisions above and replace them with the notice |
| 32 * and other provisions required by the GPL or the LGPL. If you do not delete |
| 33 * the provisions above, a recipient may use your version of this file under |
| 34 * the terms of any one of the MPL, the GPL or the LGPL. |
| 35 * |
| 36 * ***** END LICENSE BLOCK ***** */ |
| 37 |
| 38 #ifndef prwin16_h___ |
| 39 #define prwin16_h___ |
| 40 |
| 41 /* |
| 42 ** Condition use of this header on platform. |
| 43 */ |
| 44 #if (defined(XP_PC) && !defined(_WIN32) && !defined(XP_OS2) && defined(MOZILLA_C
LIENT)) || defined(WIN16) |
| 45 #include <stdio.h> |
| 46 |
| 47 PR_BEGIN_EXTERN_C |
| 48 /* |
| 49 ** Win16 stdio special case. |
| 50 ** To get stdio to work for Win16, all calls to printf() and related |
| 51 ** things must be called from the environment of the .EXE; calls to |
| 52 ** printf() from the .DLL send output to the bit-bucket. |
| 53 ** |
| 54 ** To make sure that PR_fprintf(), and related functions, work correctly, |
| 55 ** the actual stream I/O to stdout, stderr, stdin must be done in the |
| 56 ** .EXE. To do this, a hack is placed in _MD_Write() such that the |
| 57 ** fd for stdio handles results in a call to the .EXE. |
| 58 ** |
| 59 ** file w16stdio.c contains the functions that get called from NSPR |
| 60 ** to do the actual I/O. w16stdio.o must be statically linked with |
| 61 ** any application needing stdio for Win16. |
| 62 ** |
| 63 ** The address of these functions must be made available to the .DLL |
| 64 ** so he can call back to the .EXE. To do this, function |
| 65 ** PR_MD_RegisterW16StdioCallbacks() is called from the .EXE. |
| 66 ** The arguments are the functions defined in w16stdio.c |
| 67 ** At runtime, MD_Write() calls the registered functions, if any |
| 68 ** were registered. |
| 69 ** |
| 70 ** prinit.h contains a macro PR_STDIO_INIT() that calls the registration |
| 71 ** function for Win16; For other platforms, the macro is a No-Op. |
| 72 ** |
| 73 ** Note that stdio is not operational at all on Win16 GUI applications. |
| 74 ** This special case exists to provide stdio capability from the NSPR |
| 75 ** .DLL for command line applications only. NSPR's test cases are |
| 76 ** almost exclusively command line applications. |
| 77 ** |
| 78 ** See also: w16io.c, w16stdio.c |
| 79 */ |
| 80 typedef PRInt32 (PR_CALLBACK *PRStdinRead)( void *buf, PRInt32 amount); |
| 81 typedef PRInt32 (PR_CALLBACK *PRStdoutWrite)( void *buf, PRInt32 amount); |
| 82 typedef PRInt32 (PR_CALLBACK *PRStderrWrite)( void *buf, PRInt32 amount); |
| 83 |
| 84 NSPR_API(PRStatus) |
| 85 PR_MD_RegisterW16StdioCallbacks( |
| 86 PRStdinRead inReadf, /* i: function pointer for stdin read
*/ |
| 87 PRStdoutWrite outWritef, /* i: function pointer for stdout write
*/ |
| 88 PRStderrWrite errWritef /* i: function pointer for stderr write
*/ |
| 89 ); |
| 90 |
| 91 NSPR_API(PRInt32) |
| 92 _PL_W16StdioWrite( void *buf, PRInt32 amount ); |
| 93 |
| 94 NSPR_API(PRInt32) |
| 95 _PL_W16StdioRead( void *buf, PRInt32 amount ); |
| 96 |
| 97 #define PR_STDIO_INIT() PR_MD_RegisterW16StdioCallbacks( \ |
| 98 _PL_W16StdioRead, _PL_W16StdioWrite, _PL_W16StdioWrite ); \ |
| 99 PR_INIT_CALLBACKS(); |
| 100 |
| 101 /* |
| 102 ** Win16 hackery. |
| 103 ** |
| 104 */ |
| 105 struct PRMethodCallbackStr { |
| 106 int (PR_CALLBACK *auxOutput)(const char *outputString); |
| 107 size_t (PR_CALLBACK *strftime)(char *s, size_t len, const char *fmt, const
struct tm *p); |
| 108 void * (PR_CALLBACK *malloc)( size_t size ); |
| 109 void * (PR_CALLBACK *calloc)(size_t n, size_t size ); |
| 110 void * (PR_CALLBACK *realloc)( void* old_blk, size_t size ); |
| 111 void (PR_CALLBACK *free)( void *ptr ); |
| 112 void * (PR_CALLBACK *getenv)( const char *name); |
| 113 int (PR_CALLBACK *putenv)( const char *assoc); |
| 114 /* void * (PR_CALLBACK *perror)( const char *prefix ); */ |
| 115 }; |
| 116 |
| 117 NSPR_API(void) PR_MDRegisterCallbacks(struct PRMethodCallbackStr *); |
| 118 |
| 119 int PR_CALLBACK _PL_W16CallBackPuts( const char *outputString ); |
| 120 size_t PR_CALLBACK _PL_W16CallBackStrftime( |
| 121 char *s, |
| 122 size_t len, |
| 123 const char *fmt, |
| 124 const struct tm *p ); |
| 125 void * PR_CALLBACK _PL_W16CallBackMalloc( size_t size ); |
| 126 void * PR_CALLBACK _PL_W16CallBackCalloc( size_t n, size_t size ); |
| 127 void * PR_CALLBACK _PL_W16CallBackRealloc( |
| 128 void *old_blk, |
| 129 size_t size ); |
| 130 void PR_CALLBACK _PL_W16CallBackFree( void *ptr ); |
| 131 void * PR_CALLBACK _PL_W16CallBackGetenv( const char *name ); |
| 132 int PR_CALLBACK _PL_W16CallBackPutenv( const char *assoc ); |
| 133 |
| 134 /* |
| 135 ** Hackery! |
| 136 ** |
| 137 ** These functions are provided as static link points. |
| 138 ** This is to satisfy the quick port of Gromit to NSPR 2.0 |
| 139 ** ... Don't do this! ... alas, It may never go away. |
| 140 ** |
| 141 */ |
| 142 NSPR_API(int) PR_MD_printf(const char *, ...); |
| 143 NSPR_API(void) PR_MD_exit(int); |
| 144 NSPR_API(size_t) PR_MD_strftime(char *, size_t, const char *, const struct tm *
); |
| 145 NSPR_API(int) PR_MD_sscanf(const char *, const char *, ...); |
| 146 NSPR_API(void*) PR_MD_malloc( size_t size ); |
| 147 NSPR_API(void*) PR_MD_calloc( size_t n, size_t size ); |
| 148 NSPR_API(void*) PR_MD_realloc( void* old_blk, size_t size ); |
| 149 NSPR_API(void) PR_MD_free( void *ptr ); |
| 150 NSPR_API(char*) PR_MD_getenv( const char *name ); |
| 151 NSPR_API(int) PR_MD_putenv( const char *assoc ); |
| 152 NSPR_API(int) PR_MD_fprintf(FILE *fPtr, const char *fmt, ...); |
| 153 |
| 154 #define PR_INIT_CALLBACKS() \ |
| 155 { \ |
| 156 static struct PRMethodCallbackStr cbf = { \ |
| 157 _PL_W16CallBackPuts, \ |
| 158 _PL_W16CallBackStrftime, \ |
| 159 _PL_W16CallBackMalloc, \ |
| 160 _PL_W16CallBackCalloc, \ |
| 161 _PL_W16CallBackRealloc, \ |
| 162 _PL_W16CallBackFree, \ |
| 163 _PL_W16CallBackGetenv, \ |
| 164 _PL_W16CallBackPutenv, \ |
| 165 }; \ |
| 166 PR_MDRegisterCallbacks( &cbf ); \ |
| 167 } |
| 168 |
| 169 |
| 170 /* |
| 171 ** Get the exception context for Win16 MFC applications threads |
| 172 */ |
| 173 NSPR_API(void *) PR_W16GetExceptionContext(void); |
| 174 /* |
| 175 ** Set the exception context for Win16 MFC applications threads |
| 176 */ |
| 177 NSPR_API(void) PR_W16SetExceptionContext(void *context); |
| 178 |
| 179 PR_END_EXTERN_C |
| 180 #else |
| 181 /* |
| 182 ** For platforms other than Win16, define |
| 183 ** PR_STDIO_INIT() as a No-Op. |
| 184 */ |
| 185 #define PR_STDIO_INIT() |
| 186 #endif /* WIN16 || MOZILLA_CLIENT */ |
| 187 |
| 188 #endif /* prwin16_h___ */ |
| 189 |
| 190 |
| 191 |
| 192 |
| 193 |
| 194 |
| 195 |
| 196 |
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