| 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| 2 | /* ***** BEGIN LICENSE BLOCK *****
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| 3 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| 4 | *
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| 5 | * The contents of this file are subject to the Mozilla Public License Version
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| 6 | * 1.1 (the "License"); you may not use this file except in compliance with
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| 7 | * the License. You may obtain a copy of the License at
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| 8 | * http://www.mozilla.org/MPL/
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| 9 | *
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| 10 | * Software distributed under the License is distributed on an "AS IS" basis,
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| 11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| 12 | * for the specific language governing rights and limitations under the
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| 13 | * License.
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| 14 | *
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| 15 | * The Original Code is mozilla.org code.
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| 16 | *
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| 17 | * The Initial Developer of the Original Code is
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| 18 | * Netscape Communications Corporation.
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| 19 | * Portions created by the Initial Developer are Copyright (C) 1998
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| 20 | * the Initial Developer. All Rights Reserved.
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| 21 | *
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| 22 | * Contributor(s):
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| 23 | * IBM Corp.
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| 24 | * Henry Sobotka
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| 25 | *
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| 26 | * Alternatively, the contents of this file may be used under the terms of
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| 27 | * either of the GNU General Public License Version 2 or later (the "GPL"),
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| 28 | * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| 29 | * in which case the provisions of the GPL or the LGPL are applicable instead
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| 30 | * of those above. If you wish to allow use of your version of this file only
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| 31 | * under the terms of either the GPL or the LGPL, and not to allow others to
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| 32 | * use your version of this file under the terms of the MPL, indicate your
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| 33 | * decision by deleting the provisions above and replace them with the notice
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| 34 | * and other provisions required by the GPL or the LGPL. If you do not delete
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| 35 | * the provisions above, a recipient may use your version of this file under
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| 36 | * the terms of any one of the MPL, the GPL or the LGPL.
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| 37 | *
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| 38 | * ***** END LICENSE BLOCK ***** */
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| 39 |
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| 40 | #include "nsDebugImpl.h"
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| 41 | #include "nsDebug.h"
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| 42 | #include "prprf.h"
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| 43 | #include "prlog.h"
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| 44 | #include "prinit.h"
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| 45 | #include "plstr.h"
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| 46 | #include "nsError.h"
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| 47 | #include "prerror.h"
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| 48 | #include "prerr.h"
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| 49 |
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| 50 | #if defined(XP_BEOS)
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| 51 | /* For DEBUGGER macros */
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| 52 | #include <Debug.h>
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| 53 | #endif
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| 54 |
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| 55 | #if defined(XP_UNIX) || defined(_WIN32) || defined(XP_OS2) || defined(XP_BEOS)
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| 56 | /* for abort() and getenv() */
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| 57 | #include <stdlib.h>
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| 58 | #endif
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| 59 |
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| 60 | #if defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT)
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| 61 | #include <signal.h>
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| 62 | /* for nsTraceRefcnt::WalkTheStack() */
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| 63 | #include "nsISupportsUtils.h"
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| 64 | #include "nsTraceRefcntImpl.h"
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| 65 |
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| 66 | #if defined(__GNUC__) && defined(__i386)
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| 67 | # define DebugBreak() { asm("int $3"); }
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| 68 | #elif defined(__APPLE__) && defined(TARGET_CARBON)
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| 69 | # include "MacTypes.h"
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| 70 | # define DebugBreak() { Debugger(); }
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| 71 | #else
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| 72 | # define DebugBreak()
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| 73 | #endif
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| 74 | #endif
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| 75 |
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| 76 | #if defined(XP_OS2)
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| 77 | /* Added definitions for DebugBreak() for 2 different OS/2 compilers. Doing
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| 78 | * the int3 on purpose so that a developer can step over the
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| 79 | * instruction if so desired. Not always possible if trapping due to exception
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| 80 | * handling IBM-AKR
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| 81 | */
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| 82 | #define INCL_WINDIALOGS // need for WinMessageBox
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| 83 | #include <os2.h>
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| 84 | #include <string.h>
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| 85 |
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| 86 | #if defined(DEBUG)
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| 87 | #define DebugBreak() { asm("int $3"); }
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| 88 | #else
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| 89 | #define DebugBreak()
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| 90 | #endif /* DEBUG */
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| 91 | #endif /* XP_OS2 */
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| 92 |
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| 93 | #if defined(_WIN32)
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| 94 | #include <windows.h>
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| 95 | #include <signal.h>
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| 96 | #elif defined(XP_MAC)
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| 97 | #define TEMP_MAC_HACK
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| 98 |
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| 99 | //------------------------
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| 100 | #ifdef TEMP_MAC_HACK
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| 101 | #include <MacTypes.h>
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| 102 | #include <Processes.h>
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| 103 | #include <string.h>
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| 104 |
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| 105 | // TEMPORARY UNTIL WE HAVE MACINTOSH ENVIRONMENT VARIABLES THAT CAN TURN ON
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| 106 | // LOGGING ON MACINTOSH
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| 107 | // At this moment, NSPR's logging is a no-op on Macintosh.
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| 108 |
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| 109 | #include <stdarg.h>
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| 110 | #include <stdio.h>
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| 111 |
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| 112 | #undef PR_LOG
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| 113 | #undef PR_LogFlush
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| 114 | #define PR_LOG(module,level,args) dprintf args
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| 115 | #define PR_LogFlush()
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| 116 | static void dprintf(const char *format, ...)
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| 117 | {
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| 118 | va_list ap;
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| 119 | Str255 buffer;
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| 120 |
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| 121 | va_start(ap, format);
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| 122 | buffer[0] = std::vsnprintf((char *)buffer + 1, sizeof(buffer) - 1, format, ap);
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| 123 | va_end(ap);
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| 124 | if (PL_strcasestr((char *)&buffer[1], "warning"))
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| 125 | printf("¥¥¥%s\n", (char*)buffer + 1);
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| 126 | else
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| 127 | DebugStr(buffer);
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| 128 | }
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| 129 | #endif // TEMP_MAC_HACK
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| 130 | //------------------------
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| 131 | #elif defined(XP_UNIX)
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| 132 | #include<stdlib.h>
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| 133 | #endif
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| 134 |
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| 135 | /*
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| 136 | * Determine if debugger is present in windows.
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| 137 | */
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| 138 | #if defined (_WIN32)
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| 139 |
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| 140 | typedef WINBASEAPI BOOL (WINAPI* LPFNISDEBUGGERPRESENT)();
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| 141 | PRBool InDebugger()
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| 142 | {
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| 143 | PRBool fReturn = PR_FALSE;
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| 144 | LPFNISDEBUGGERPRESENT lpfnIsDebuggerPresent = NULL;
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| 145 | HINSTANCE hKernel = LoadLibrary("Kernel32.dll");
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| 146 |
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| 147 | if(hKernel)
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| 148 | {
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| 149 | lpfnIsDebuggerPresent =
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| 150 | (LPFNISDEBUGGERPRESENT)GetProcAddress(hKernel, "IsDebuggerPresent");
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| 151 | if(lpfnIsDebuggerPresent)
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| 152 | {
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| 153 | fReturn = (*lpfnIsDebuggerPresent)();
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| 154 | }
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| 155 | FreeLibrary(hKernel);
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| 156 | }
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| 157 |
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| 158 | return fReturn;
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| 159 | }
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| 160 |
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| 161 | #endif /* WIN32*/
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| 162 |
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| 163 | NS_IMPL_THREADSAFE_ISUPPORTS1(nsDebugImpl, nsIDebug)
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| 164 |
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| 165 | nsDebugImpl::nsDebugImpl()
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| 166 | {
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| 167 | }
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| 168 |
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| 169 | /**
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| 170 | * Implementation of the nsDebug methods. Note that this code is
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| 171 | * always compiled in, in case some other module that uses it is
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| 172 | * compiled with debugging even if this library is not.
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| 173 | */
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| 174 | static PRLogModuleInfo* gDebugLog;
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| 175 |
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| 176 | static void InitLog(void)
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| 177 | {
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| 178 | if (0 == gDebugLog) {
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| 179 | gDebugLog = PR_NewLogModule("nsDebug");
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| 180 | gDebugLog->level = PR_LOG_DEBUG;
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| 181 | }
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| 182 | }
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| 183 |
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| 184 |
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| 185 |
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| 186 | NS_IMETHODIMP
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| 187 | nsDebugImpl::Assertion(const char *aStr, const char *aExpr, const char *aFile, PRInt32 aLine)
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| 188 | {
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| 189 | InitLog();
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| 190 |
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| 191 | char buf[1000];
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| 192 | PR_snprintf(buf, sizeof(buf),
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| 193 | "###!!! ASSERTION: %s: '%s', file %s, line %d",
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| 194 | aStr, aExpr, aFile, aLine);
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| 195 |
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| 196 | // Write out the assertion message to the debug log
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| 197 | PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf));
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| 198 | PR_LogFlush();
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| 199 |
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| 200 | // And write it out to the stderr
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| 201 | fprintf(stderr, "%s\n", buf);
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| 202 | fflush(stderr);
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| 203 |
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| 204 | #if defined(_WIN32)
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| 205 | char* assertBehavior = getenv("XPCOM_DEBUG_BREAK");
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| 206 | if (assertBehavior && strcmp(assertBehavior, "warn") == 0)
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| 207 | return NS_OK;
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| 208 |
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| 209 | if(!InDebugger())
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| 210 | {
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| 211 | DWORD code = IDRETRY;
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| 212 |
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| 213 | /* Create the debug dialog out of process to avoid the crashes caused by
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| 214 | * Windows events leaking into our event loop from an in process dialog.
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| 215 | * We do this by launching windbgdlg.exe (built in xpcom/windbgdlg).
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| 216 | * See http://bugzilla.mozilla.org/show_bug.cgi?id=54792
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| 217 | */
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| 218 | PROCESS_INFORMATION pi;
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| 219 | STARTUPINFO si;
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| 220 | char executable[MAX_PATH];
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| 221 | char* pName;
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| 222 |
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| 223 | memset(&pi, 0, sizeof(pi));
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| 224 |
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| 225 | memset(&si, 0, sizeof(si));
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| 226 | si.cb = sizeof(si);
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| 227 | si.wShowWindow = SW_SHOW;
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| 228 |
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| 229 | if(GetModuleFileName(GetModuleHandle("xpcom.dll"), executable, MAX_PATH) &&
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| 230 | NULL != (pName = strrchr(executable, '\\')) &&
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| 231 | NULL != strcpy(pName+1, "windbgdlg.exe") &&
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| 232 | #ifdef DEBUG_jband
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| 233 | (printf("Launching %s\n", executable), PR_TRUE) &&
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| 234 | #endif
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| 235 | CreateProcess(executable, buf, NULL, NULL, PR_FALSE,
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| 236 | DETACHED_PROCESS | NORMAL_PRIORITY_CLASS,
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| 237 | NULL, NULL, &si, &pi) &&
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| 238 | WAIT_OBJECT_0 == WaitForSingleObject(pi.hProcess, INFINITE) &&
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| 239 | GetExitCodeProcess(pi.hProcess, &code))
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| 240 | {
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| 241 | CloseHandle(pi.hProcess);
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| 242 | }
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| 243 |
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| 244 | switch(code)
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| 245 | {
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| 246 | case IDABORT:
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| 247 | //This should exit us
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| 248 | raise(SIGABRT);
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| 249 | //If we are ignored exit this way..
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| 250 | _exit(3);
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| 251 | break;
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| 252 |
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| 253 | case IDIGNORE:
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| 254 | return NS_OK;
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| 255 | // Fall Through
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| 256 | }
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| 257 | }
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| 258 | #endif
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| 259 |
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| 260 | #if defined(XP_OS2)
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| 261 | char* assertBehavior = getenv("XPCOM_DEBUG_BREAK");
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| 262 | if (assertBehavior && strcmp(assertBehavior, "warn") == 0)
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| 263 | return NS_OK;
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| 264 |
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| 265 | char msg[1200];
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| 266 | PR_snprintf(msg, sizeof(msg),
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| 267 | "%s\n\nClick Cancel to Debug Application.\n"
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| 268 | "Click Enter to continue running the Application.", buf);
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| 269 | ULONG code = MBID_ERROR;
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| 270 | code = WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, msg,
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| 271 | "nsDebug::Assertion", 0,
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| 272 | MB_ERROR | MB_ENTERCANCEL);
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| 273 |
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| 274 | /* It is possible that we are executing on a thread that doesn't have a
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| 275 | * message queue. In that case, the message won't appear, and code will
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| 276 | * be 0xFFFF. We'll give the user a chance to debug it by calling
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| 277 | * Break()
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| 278 | * Actually, that's a really bad idea since this happens a lot with threadsafe
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| 279 | * assertions and since it means that you can't actually run the debug build
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| 280 | * outside a debugger without it crashing constantly.
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| 281 | */
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| 282 | if(( code == MBID_ENTER ) || (code == MBID_ERROR))
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| 283 | {
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| 284 | return NS_OK;
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| 285 | // If Retry, Fall Through
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| 286 | }
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| 287 | #endif
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| 288 |
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| 289 | Break(aFile, aLine);
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| 290 | return NS_OK;
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| 291 | }
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| 292 |
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| 293 | NS_IMETHODIMP
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| 294 | nsDebugImpl::Break(const char *aFile, PRInt32 aLine)
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| 295 | {
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| 296 | #ifndef TEMP_MAC_HACK
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| 297 | // Write out the assertion message to the debug log
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| 298 | InitLog();
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| 299 |
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| 300 | PR_LOG(gDebugLog, PR_LOG_ERROR,
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| 301 | ("###!!! Break: at file %s, line %d", aFile, aLine));
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| 302 | PR_LogFlush();
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| 303 |
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| 304 | fprintf(stderr, "Break: at file %s, line %d\n",aFile, aLine); fflush(stderr);
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| 305 | fflush(stderr);
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| 306 |
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| 307 | #if defined(_WIN32)
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| 308 | #ifdef _M_IX86
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| 309 | ::DebugBreak();
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| 310 | #endif
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| 311 | #elif defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT)
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| 312 | fprintf(stderr, "\07");
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| 313 |
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| 314 | char *assertBehavior = getenv("XPCOM_DEBUG_BREAK");
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| 315 |
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| 316 | if (!assertBehavior) {
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| 317 |
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| 318 | // the default; nothing else to do
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| 319 | ;
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| 320 |
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| 321 | } else if ( strcmp(assertBehavior, "suspend")== 0 ) {
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| 322 |
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| 323 | // the suspend case is first because we wanna send the signal before
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| 324 | // other threads have had a chance to get too far from the state that
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| 325 | // caused this assertion (in case they happen to have been involved).
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| 326 | //
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| 327 | fprintf(stderr, "Suspending process; attach with the debugger.\n");
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| 328 | kill(0, SIGSTOP);
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| 329 |
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| 330 | } else if ( strcmp(assertBehavior, "warn")==0 ) {
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| 331 |
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| 332 | // same as default; nothing else to do (see "suspend" case comment for
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| 333 | // why this compare isn't done as part of the default case)
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| 334 | //
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| 335 | ;
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| 336 |
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| 337 | }
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| 338 | else if ( strcmp(assertBehavior,"stack")==0 ) {
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| 339 |
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| 340 | // walk the stack
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| 341 | //
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| 342 | nsTraceRefcntImpl::WalkTheStack(stderr);
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| 343 | }
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| 344 | else if ( strcmp(assertBehavior,"abort")==0 ) {
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| 345 |
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| 346 | // same as UNIX_CRASH_ON_ASSERT
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| 347 | //
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| 348 | Abort(aFile, aLine);
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| 349 |
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| 350 | } else if ( strcmp(assertBehavior,"trap")==0 ) {
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| 351 |
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| 352 | DebugBreak();
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| 353 |
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| 354 | } else {
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| 355 |
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| 356 | fprintf(stderr, "unrecognized value of XPCOM_DEBUG_BREAK env var!\n");
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| 357 |
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| 358 | }
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| 359 | fflush(stderr); // this shouldn't really be necessary, i don't think,
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| 360 | // but maybe there's some lame stdio that buffers stderr
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| 361 |
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| 362 | #elif defined(XP_BEOS)
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| 363 | {
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| 364 | #ifdef UNIX_CRASH_ON_ASSERT
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| 365 | char buf[2000];
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| 366 | sprintf(buf, "Break: at file %s, line %d", aFile, aLine);
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| 367 | DEBUGGER(buf);
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| 368 | #endif
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| 369 | }
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| 370 | #else
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| 371 | Abort(aFile, aLine);
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| 372 | #endif
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| 373 | #endif // TEMP_MAC_HACK
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| 374 | return NS_OK;
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| 375 | }
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| 376 |
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| 377 | NS_IMETHODIMP
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| 378 | nsDebugImpl::Abort(const char *aFile, PRInt32 aLine)
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| 379 | {
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| 380 | InitLog();
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| 381 |
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| 382 | PR_LOG(gDebugLog, PR_LOG_ERROR,
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| 383 | ("###!!! Abort: at file %s, line %d", aFile, aLine));
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| 384 | PR_LogFlush();
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| 385 | fprintf(stderr, "\07 Abort\n"); fflush(stderr);
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| 386 | fflush(stderr);
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| 387 |
|
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| 388 | #if defined(_WIN32)
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| 389 | #ifdef _M_IX86
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| 390 | long* __p = (long*) 0x7;
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| 391 | *__p = 0x7;
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| 392 | #else /* _M_ALPHA */
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| 393 | PR_Abort();
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| 394 | #endif
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| 395 | #elif defined(XP_MAC)
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| 396 | ExitToShell();
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| 397 | #elif defined(XP_UNIX)
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| 398 | PR_Abort();
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| 399 | #elif defined(XP_OS2)
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| 400 | DebugBreak();
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| 401 | return NS_OK;
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| 402 | #elif defined(XP_BEOS)
|
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| 403 | {
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| 404 | #ifndef DEBUG_cls
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| 405 | char buf[2000];
|
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| 406 | sprintf(buf, "Abort: at file %s, line %d", aFile, aLine);
|
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| 407 | DEBUGGER(buf);
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| 408 | #endif
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| 409 | }
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| 410 | #endif
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| 411 | return NS_OK;
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| 412 | }
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| 413 |
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| 414 | NS_IMETHODIMP
|
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| 415 | nsDebugImpl::Warning(const char* aMessage,
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| 416 | const char* aFile, PRIntn aLine)
|
|---|
| 417 | {
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| 418 | InitLog();
|
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| 419 |
|
|---|
| 420 | char buf[1000];
|
|---|
| 421 | PR_snprintf(buf, sizeof(buf),
|
|---|
| 422 | "WARNING: %s, file %s, line %d",
|
|---|
| 423 | aMessage, aFile, aLine);
|
|---|
| 424 |
|
|---|
| 425 | // Write out the warning message to the debug log
|
|---|
| 426 | PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf));
|
|---|
| 427 |
|
|---|
| 428 | // And write it out to the stdout
|
|---|
| 429 | fprintf(stderr, "%s\n", buf);
|
|---|
| 430 | fflush(stderr);
|
|---|
| 431 | return NS_OK;
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | NS_METHOD
|
|---|
| 435 | nsDebugImpl::Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
|
|---|
| 436 | {
|
|---|
| 437 | *aInstancePtr = nsnull;
|
|---|
| 438 | nsIDebug* debug = new nsDebugImpl();
|
|---|
| 439 | if (!debug)
|
|---|
| 440 | return NS_ERROR_OUT_OF_MEMORY;
|
|---|
| 441 |
|
|---|
| 442 | nsresult rv = debug->QueryInterface(aIID, aInstancePtr);
|
|---|
| 443 | if (NS_FAILED(rv)) {
|
|---|
| 444 | delete debug;
|
|---|
| 445 | }
|
|---|
| 446 |
|
|---|
| 447 | return rv;
|
|---|
| 448 | }
|
|---|
| 449 |
|
|---|
| 450 | ////////////////////////////////////////////////////////////////////////////////
|
|---|
| 451 |
|
|---|
| 452 | NS_COM nsresult
|
|---|
| 453 | NS_ErrorAccordingToNSPR()
|
|---|
| 454 | {
|
|---|
| 455 | PRErrorCode err = PR_GetError();
|
|---|
| 456 | switch (err) {
|
|---|
| 457 | case PR_OUT_OF_MEMORY_ERROR: return NS_ERROR_OUT_OF_MEMORY;
|
|---|
| 458 | case PR_WOULD_BLOCK_ERROR: return NS_BASE_STREAM_WOULD_BLOCK;
|
|---|
| 459 | case PR_FILE_NOT_FOUND_ERROR: return NS_ERROR_FILE_NOT_FOUND;
|
|---|
| 460 | case PR_READ_ONLY_FILESYSTEM_ERROR: return NS_ERROR_FILE_READ_ONLY;
|
|---|
| 461 | case PR_NOT_DIRECTORY_ERROR: return NS_ERROR_FILE_NOT_DIRECTORY;
|
|---|
| 462 | case PR_IS_DIRECTORY_ERROR: return NS_ERROR_FILE_IS_DIRECTORY;
|
|---|
| 463 | case PR_LOOP_ERROR: return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
|
|---|
| 464 | case PR_FILE_EXISTS_ERROR: return NS_ERROR_FILE_ALREADY_EXISTS;
|
|---|
| 465 | case PR_FILE_IS_LOCKED_ERROR: return NS_ERROR_FILE_IS_LOCKED;
|
|---|
| 466 | case PR_FILE_TOO_BIG_ERROR: return NS_ERROR_FILE_TOO_BIG;
|
|---|
| 467 | case PR_NO_DEVICE_SPACE_ERROR: return NS_ERROR_FILE_NO_DEVICE_SPACE;
|
|---|
| 468 | case PR_NAME_TOO_LONG_ERROR: return NS_ERROR_FILE_NAME_TOO_LONG;
|
|---|
| 469 | case PR_DIRECTORY_NOT_EMPTY_ERROR: return NS_ERROR_FILE_DIR_NOT_EMPTY;
|
|---|
| 470 | case PR_NO_ACCESS_RIGHTS_ERROR: return NS_ERROR_FILE_ACCESS_DENIED;
|
|---|
| 471 | default: return NS_ERROR_FAILURE;
|
|---|
| 472 | }
|
|---|
| 473 | }
|
|---|
| 474 |
|
|---|
| 475 | ////////////////////////////////////////////////////////////////////////////////
|
|---|
| 476 |
|
|---|
