LCOV - code coverage report
Current view: directory - xpcom/base - nsDebugImpl.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 148 45 30.4 %
Date: 2012-06-02 Functions: 22 7 31.8 %

       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 mozilla.org code.
      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
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   IBM Corp.
      24                 :  *   Henry Sobotka
      25                 :  *   Benjamin Smedberg <benjamin@smedbergs.us>
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      29                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      31                 :  * of those above. If you wish to allow use of your version of this file only
      32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      33                 :  * use your version of this file under the terms of the MPL, indicate your
      34                 :  * decision by deleting the provisions above and replace them with the notice
      35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      36                 :  * the provisions above, a recipient may use your version of this file under
      37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      38                 :  *
      39                 :  * ***** END LICENSE BLOCK ***** */
      40                 : 
      41                 : #include "nsDebugImpl.h"
      42                 : #include "nsDebug.h"
      43                 : #ifdef MOZ_CRASHREPORTER
      44                 : # include "nsExceptionHandler.h"
      45                 : #endif
      46                 : #include "nsStringGlue.h"
      47                 : #include "prprf.h"
      48                 : #include "prlog.h"
      49                 : #include "prinit.h"
      50                 : #include "plstr.h"
      51                 : #include "nsError.h"
      52                 : #include "prerror.h"
      53                 : #include "prerr.h"
      54                 : #include "prenv.h"
      55                 : #include "pratom.h"
      56                 : 
      57                 : #ifdef ANDROID
      58                 : #include <android/log.h>
      59                 : #endif
      60                 : 
      61                 : #if defined(XP_UNIX) || defined(_WIN32) || defined(XP_OS2)
      62                 : /* for abort() and getenv() */
      63                 : #include <stdlib.h>
      64                 : #endif
      65                 : 
      66                 : #include "nsTraceRefcntImpl.h"
      67                 : #include "nsISupportsUtils.h"
      68                 : 
      69                 : #if defined(XP_UNIX)
      70                 : #include <signal.h>
      71                 : #endif
      72                 : 
      73                 : #if defined(XP_WIN)
      74                 : #include <tchar.h>
      75                 : #include "nsString.h"
      76                 : #endif
      77                 : 
      78                 : #include "mozilla/mozalloc_abort.h"
      79                 : 
      80                 : static void
      81                 : Abort(const char *aMsg);
      82                 : 
      83                 : static void
      84                 : RealBreak();
      85                 : 
      86                 : static void
      87                 : Break(const char *aMsg);
      88                 : 
      89                 : #if defined(XP_OS2)
      90                 : #  define INCL_WINDIALOGS  // need for WinMessageBox
      91                 : #  include <os2.h>
      92                 : #  include <string.h>
      93                 : #endif /* XP_OS2 */
      94                 : 
      95                 : #if defined(_WIN32)
      96                 : #include <windows.h>
      97                 : #include <signal.h>
      98                 : #include <malloc.h> // for _alloca
      99                 : #elif defined(XP_UNIX)
     100                 : #include <stdlib.h>
     101                 : #endif
     102                 : 
     103                 : static PRInt32 gAssertionCount = 0;
     104                 : 
     105               0 : NS_IMPL_QUERY_INTERFACE2(nsDebugImpl, nsIDebug, nsIDebug2)
     106                 : 
     107                 : NS_IMETHODIMP_(nsrefcnt)
     108               0 : nsDebugImpl::AddRef()
     109                 : {
     110               0 :   return 2;
     111                 : }
     112                 : 
     113                 : NS_IMETHODIMP_(nsrefcnt)
     114               0 : nsDebugImpl::Release()
     115                 : {
     116               0 :   return 1;
     117                 : }
     118                 : 
     119                 : NS_IMETHODIMP
     120               0 : nsDebugImpl::Assertion(const char *aStr, const char *aExpr,
     121                 :                        const char *aFile, PRInt32 aLine)
     122                 : {
     123               0 :   NS_DebugBreak(NS_DEBUG_ASSERTION, aStr, aExpr, aFile, aLine);
     124               0 :   return NS_OK;
     125                 : }
     126                 : 
     127                 : NS_IMETHODIMP
     128               0 : nsDebugImpl::Warning(const char *aStr, const char *aFile, PRInt32 aLine)
     129                 : {
     130               0 :   NS_DebugBreak(NS_DEBUG_WARNING, aStr, nsnull, aFile, aLine);
     131               0 :   return NS_OK;
     132                 : }
     133                 : 
     134                 : NS_IMETHODIMP
     135               0 : nsDebugImpl::Break(const char *aFile, PRInt32 aLine)
     136                 : {
     137               0 :   NS_DebugBreak(NS_DEBUG_BREAK, nsnull, nsnull, aFile, aLine);
     138               0 :   return NS_OK;
     139                 : }
     140                 : 
     141                 : NS_IMETHODIMP
     142               0 : nsDebugImpl::Abort(const char *aFile, PRInt32 aLine)
     143                 : {
     144               0 :   NS_DebugBreak(NS_DEBUG_ABORT, nsnull, nsnull, aFile, aLine);
     145               0 :   return NS_OK;
     146                 : }
     147                 : 
     148                 : NS_IMETHODIMP
     149               0 : nsDebugImpl::GetIsDebugBuild(bool* aResult)
     150                 : {
     151                 : #ifdef DEBUG
     152               0 :   *aResult = true;
     153                 : #else
     154                 :   *aResult = false;
     155                 : #endif
     156               0 :   return NS_OK;
     157                 : }
     158                 : 
     159                 : NS_IMETHODIMP
     160               0 : nsDebugImpl::GetAssertionCount(PRInt32* aResult)
     161                 : {
     162               0 :   *aResult = gAssertionCount;
     163               0 :   return NS_OK;
     164                 : }
     165                 : 
     166                 : /**
     167                 :  * Implementation of the nsDebug methods. Note that this code is
     168                 :  * always compiled in, in case some other module that uses it is
     169                 :  * compiled with debugging even if this library is not.
     170                 :  */
     171                 : static PRLogModuleInfo* gDebugLog;
     172                 : 
     173            6012 : static void InitLog(void)
     174                 : {
     175            6012 :   if (0 == gDebugLog) {
     176            1398 :     gDebugLog = PR_NewLogModule("nsDebug");
     177            1398 :     gDebugLog->level = PR_LOG_DEBUG;
     178                 :   }
     179            6012 : }
     180                 : 
     181                 : enum nsAssertBehavior {
     182                 :   NS_ASSERT_UNINITIALIZED,
     183                 :   NS_ASSERT_WARN,
     184                 :   NS_ASSERT_SUSPEND,
     185                 :   NS_ASSERT_STACK,
     186                 :   NS_ASSERT_TRAP,
     187                 :   NS_ASSERT_ABORT,
     188                 :   NS_ASSERT_STACK_AND_ABORT
     189                 : };
     190                 : 
     191               0 : static nsAssertBehavior GetAssertBehavior()
     192                 : {
     193                 :   static nsAssertBehavior gAssertBehavior = NS_ASSERT_UNINITIALIZED;
     194               0 :   if (gAssertBehavior != NS_ASSERT_UNINITIALIZED)
     195               0 :     return gAssertBehavior;
     196                 : 
     197                 : #if defined(XP_WIN) || defined(XP_OS2)
     198                 :   gAssertBehavior = NS_ASSERT_TRAP;
     199                 : #else
     200               0 :   gAssertBehavior = NS_ASSERT_WARN;
     201                 : #endif
     202                 : 
     203               0 :   const char *assertString = PR_GetEnv("XPCOM_DEBUG_BREAK");
     204               0 :   if (!assertString || !*assertString)
     205               0 :     return gAssertBehavior;
     206                 : 
     207               0 :    if (!strcmp(assertString, "warn"))
     208               0 :      return gAssertBehavior = NS_ASSERT_WARN;
     209                 : 
     210               0 :    if (!strcmp(assertString, "suspend"))
     211               0 :      return gAssertBehavior = NS_ASSERT_SUSPEND;
     212                 : 
     213               0 :    if (!strcmp(assertString, "stack"))
     214               0 :      return gAssertBehavior = NS_ASSERT_STACK;
     215                 : 
     216               0 :    if (!strcmp(assertString, "abort"))
     217               0 :      return gAssertBehavior = NS_ASSERT_ABORT;
     218                 : 
     219               0 :    if (!strcmp(assertString, "trap") || !strcmp(assertString, "break"))
     220               0 :      return gAssertBehavior = NS_ASSERT_TRAP;
     221                 : 
     222               0 :    if (!strcmp(assertString, "stack-and-abort"))
     223               0 :      return gAssertBehavior = NS_ASSERT_STACK_AND_ABORT;
     224                 : 
     225               0 :    fprintf(stderr, "Unrecognized value of XPCOM_DEBUG_BREAK\n");
     226               0 :    return gAssertBehavior;
     227                 : }
     228                 : 
     229                 : struct FixedBuffer
     230                 : {
     231            6012 :   FixedBuffer() : curlen(0) { buffer[0] = '\0'; }
     232                 : 
     233                 :   char buffer[1000];
     234                 :   PRUint32 curlen;
     235                 : };
     236                 : 
     237                 : static PRIntn
     238          144288 : StuffFixedBuffer(void *closure, const char *buf, PRUint32 len)
     239                 : {
     240          144288 :   if (!len)
     241               0 :     return 0;
     242                 :   
     243          144288 :   FixedBuffer *fb = (FixedBuffer*) closure;
     244                 : 
     245                 :   // strip the trailing null, we add it again later
     246          144288 :   if (buf[len - 1] == '\0')
     247           24048 :     --len;
     248                 : 
     249          144288 :   if (fb->curlen + len >= sizeof(fb->buffer))
     250               0 :     len = sizeof(fb->buffer) - fb->curlen - 1;
     251                 : 
     252          144288 :   if (len) {
     253          120240 :     memcpy(fb->buffer + fb->curlen, buf, len);
     254          120240 :     fb->curlen += len;
     255          120240 :     fb->buffer[fb->curlen] = '\0';
     256                 :   }
     257                 : 
     258          144288 :   return len;
     259                 : }
     260                 : 
     261                 : EXPORT_XPCOM_API(void)
     262            6012 : NS_DebugBreak(PRUint32 aSeverity, const char *aStr, const char *aExpr,
     263                 :               const char *aFile, PRInt32 aLine)
     264                 : {
     265            6012 :    InitLog();
     266                 : 
     267            6012 :    FixedBuffer buf;
     268            6012 :    PRLogModuleLevel ll = PR_LOG_WARNING;
     269            6012 :    const char *sevString = "WARNING";
     270                 : 
     271            6012 :    switch (aSeverity) {
     272                 :    case NS_DEBUG_ASSERTION:
     273               0 :      sevString = "###!!! ASSERTION";
     274               0 :      ll = PR_LOG_ERROR;
     275               0 :      break;
     276                 : 
     277                 :    case NS_DEBUG_BREAK:
     278               0 :      sevString = "###!!! BREAK";
     279               0 :      ll = PR_LOG_ALWAYS;
     280               0 :      break;
     281                 : 
     282                 :    case NS_DEBUG_ABORT:
     283               0 :      sevString = "###!!! ABORT";
     284               0 :      ll = PR_LOG_ALWAYS;
     285               0 :      break;
     286                 : 
     287                 :    default:
     288            6012 :      aSeverity = NS_DEBUG_WARNING;
     289                 :    };
     290                 : 
     291            6012 :    PR_sxprintf(StuffFixedBuffer, &buf, "%s: ", sevString);
     292                 : 
     293            6012 :    if (aStr)
     294            6012 :      PR_sxprintf(StuffFixedBuffer, &buf, "%s: ", aStr);
     295                 : 
     296            6012 :    if (aExpr)
     297               0 :      PR_sxprintf(StuffFixedBuffer, &buf, "'%s', ", aExpr);
     298                 : 
     299            6012 :    if (aFile)
     300            6012 :      PR_sxprintf(StuffFixedBuffer, &buf, "file %s, ", aFile);
     301                 : 
     302            6012 :    if (aLine != -1)
     303            6012 :      PR_sxprintf(StuffFixedBuffer, &buf, "line %d", aLine);
     304                 : 
     305                 :    // Write out the message to the debug log
     306            6012 :    PR_LOG(gDebugLog, ll, ("%s", buf.buffer));
     307            6012 :    PR_LogFlush();
     308                 : 
     309                 :    // errors on platforms without a debugdlg ring a bell on stderr
     310                 : #if !defined(XP_WIN) && !defined(XP_OS2)
     311            6012 :    if (ll != PR_LOG_WARNING)
     312               0 :      fprintf(stderr, "\07");
     313                 : #endif
     314                 : 
     315                 : #ifdef ANDROID
     316                 :    __android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", buf.buffer);
     317                 : #endif
     318                 : 
     319                 :    // Write the message to stderr
     320            6012 :    fprintf(stderr, "%s\n", buf.buffer);
     321            6012 :    fflush(stderr);
     322                 : 
     323            6012 :    switch (aSeverity) {
     324                 :    case NS_DEBUG_WARNING:
     325            6012 :      return;
     326                 : 
     327                 :    case NS_DEBUG_BREAK:
     328               0 :      Break(buf.buffer);
     329               0 :      return;
     330                 : 
     331                 :    case NS_DEBUG_ABORT: {
     332                 : #if defined(MOZ_CRASHREPORTER)
     333               0 :      nsCString note("xpcom_runtime_abort(");
     334               0 :      note += buf.buffer;
     335               0 :      note += ")";
     336               0 :      CrashReporter::AppendAppNotesToCrashReport(note);
     337                 : #endif  // MOZ_CRASHREPORTER
     338                 : 
     339                 : #if defined(DEBUG) && defined(_WIN32)
     340                 :      RealBreak();
     341                 : #endif
     342                 : #ifdef DEBUG
     343               0 :      nsTraceRefcntImpl::WalkTheStack(stderr);
     344                 : #endif
     345               0 :      Abort(buf.buffer);
     346                 :      return;
     347                 :    }
     348                 :    }
     349                 : 
     350                 :    // Now we deal with assertions
     351               0 :    PR_ATOMIC_INCREMENT(&gAssertionCount);
     352                 : 
     353               0 :    switch (GetAssertBehavior()) {
     354                 :    case NS_ASSERT_WARN:
     355               0 :      return;
     356                 : 
     357                 :    case NS_ASSERT_SUSPEND:
     358                 : #ifdef XP_UNIX
     359               0 :       fprintf(stderr, "Suspending process; attach with the debugger.\n");
     360               0 :       kill(0, SIGSTOP);
     361                 : #else
     362                 :       Break(buf.buffer);
     363                 : #endif
     364               0 :       return;
     365                 : 
     366                 :    case NS_ASSERT_STACK:
     367               0 :      nsTraceRefcntImpl::WalkTheStack(stderr);
     368               0 :      return;
     369                 : 
     370                 :    case NS_ASSERT_STACK_AND_ABORT:
     371               0 :      nsTraceRefcntImpl::WalkTheStack(stderr);
     372                 :      // Fall through to abort
     373                 : 
     374                 :    case NS_ASSERT_ABORT:
     375               0 :      Abort(buf.buffer);
     376               0 :      return;
     377                 : 
     378                 :    case NS_ASSERT_TRAP:
     379                 :    case NS_ASSERT_UNINITIALIZED: // Default to "trap" behavior
     380               0 :      Break(buf.buffer);
     381               0 :      return;
     382                 :    }   
     383                 : }
     384                 : 
     385                 : static void
     386               0 : Abort(const char *aMsg)
     387                 : {
     388               0 :   mozalloc_abort(aMsg);
     389                 : }
     390                 : 
     391                 : static void
     392               0 : RealBreak()
     393                 : {
     394                 : #if defined(_WIN32)
     395                 :   ::DebugBreak();
     396                 : #elif defined(XP_OS2)
     397                 :    asm("int $3");
     398                 : #elif defined(XP_MACOSX)
     399                 :    raise(SIGTRAP);
     400                 : #elif defined(__GNUC__) && (defined(__i386__) || defined(__i386) || defined(__x86_64__))
     401               0 :    asm("int $3");
     402                 : #elif defined(__arm__)
     403                 :    asm(
     404                 : #ifdef __ARM_ARCH_4T__
     405                 : /* ARMv4T doesn't support the BKPT instruction, so if the compiler target
     406                 :  * is ARMv4T, we want to ensure the assembler will understand that ARMv5T
     407                 :  * instruction, while keeping the resulting object tagged as ARMv4T.
     408                 :  */
     409                 :        ".arch armv5t\n"
     410                 :        ".object_arch armv4t\n"
     411                 : #endif
     412                 :        "BKPT #0");
     413                 : #elif defined(SOLARIS)
     414                 : #if defined(__i386__) || defined(__i386) || defined(__x86_64__)
     415                 :    asm("int $3");
     416                 : #else
     417                 :    raise(SIGTRAP);
     418                 : #endif
     419                 : #else
     420                 : #warning do not know how to break on this platform
     421                 : #endif
     422               0 : }
     423                 : 
     424                 : // Abort() calls this function, don't call it!
     425                 : static void
     426               0 : Break(const char *aMsg)
     427                 : {
     428                 : #if defined(_WIN32)
     429                 :   static int ignoreDebugger;
     430                 :   if (!ignoreDebugger) {
     431                 :     const char *shouldIgnoreDebugger = getenv("XPCOM_DEBUG_DLG");
     432                 :     ignoreDebugger = 1 + (shouldIgnoreDebugger && !strcmp(shouldIgnoreDebugger, "1"));
     433                 :   }
     434                 :   if ((ignoreDebugger == 2) || !::IsDebuggerPresent()) {
     435                 :     DWORD code = IDRETRY;
     436                 : 
     437                 :     /* Create the debug dialog out of process to avoid the crashes caused by 
     438                 :      * Windows events leaking into our event loop from an in process dialog.
     439                 :      * We do this by launching windbgdlg.exe (built in xpcom/windbgdlg).
     440                 :      * See http://bugzilla.mozilla.org/show_bug.cgi?id=54792
     441                 :      */
     442                 :     PROCESS_INFORMATION pi;
     443                 :     STARTUPINFOW si;
     444                 :     PRUnichar executable[MAX_PATH];
     445                 :     PRUnichar* pName;
     446                 : 
     447                 :     memset(&pi, 0, sizeof(pi));
     448                 : 
     449                 :     memset(&si, 0, sizeof(si));
     450                 :     si.cb          = sizeof(si);
     451                 :     si.wShowWindow = SW_SHOW;
     452                 : 
     453                 :     // 2nd arg of CreateProcess is in/out
     454                 :     PRUnichar *msgCopy = (PRUnichar*) _alloca((strlen(aMsg) + 1)*sizeof(PRUnichar));
     455                 :     wcscpy(msgCopy  , (PRUnichar*)NS_ConvertUTF8toUTF16(aMsg).get());
     456                 : 
     457                 :     if(GetModuleFileNameW(GetModuleHandleW(L"xpcom.dll"), (LPWCH)executable, MAX_PATH) &&
     458                 :        NULL != (pName = wcsrchr(executable, '\\')) &&
     459                 :        NULL != 
     460                 :        wcscpy((WCHAR*)
     461                 :        pName+1, L"windbgdlg.exe") &&
     462                 :        CreateProcessW((LPCWSTR)executable, (LPWSTR)msgCopy, NULL, NULL, false,
     463                 :                      DETACHED_PROCESS | NORMAL_PRIORITY_CLASS,
     464                 :                      NULL, NULL, &si, &pi)) {
     465                 :       WaitForSingleObject(pi.hProcess, INFINITE);
     466                 :       GetExitCodeProcess(pi.hProcess, &code);
     467                 :       CloseHandle(pi.hProcess);
     468                 :       CloseHandle(pi.hThread);
     469                 :     }
     470                 : 
     471                 :     switch(code) {
     472                 :     case IDABORT:
     473                 :       //This should exit us
     474                 :       raise(SIGABRT);
     475                 :       //If we are ignored exit this way..
     476                 :       _exit(3);
     477                 :          
     478                 :     case IDIGNORE:
     479                 :       return;
     480                 :     }
     481                 :   }
     482                 : 
     483                 :   RealBreak();
     484                 : #elif defined(XP_OS2)
     485                 :    char msg[1200];
     486                 :    PR_snprintf(msg, sizeof(msg),
     487                 :                "%s\n\nClick Cancel to Debug Application.\n"
     488                 :                "Click Enter to continue running the Application.", aMsg);
     489                 :    ULONG code = MBID_ERROR;
     490                 :    code = WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, msg, 
     491                 :                         "NSGlue_Assertion", 0,
     492                 :                         MB_ERROR | MB_ENTERCANCEL);
     493                 : 
     494                 :    /* It is possible that we are executing on a thread that doesn't have a
     495                 :     * message queue.  In that case, the message won't appear, and code will
     496                 :     * be 0xFFFF.  We'll give the user a chance to debug it by calling
     497                 :     * Break()
     498                 :     * Actually, that's a really bad idea since this happens a lot with threadsafe
     499                 :     * assertions and since it means that you can't actually run the debug build
     500                 :     * outside a debugger without it crashing constantly.
     501                 :     */
     502                 :    if (( code == MBID_ENTER ) || (code == MBID_ERROR))
     503                 :      return;
     504                 : 
     505                 :    RealBreak();
     506                 : #elif defined(XP_MACOSX)
     507                 :    /* Note that we put this Mac OS X test above the GNUC/x86 test because the
     508                 :     * GNUC/x86 test is also true on Intel Mac OS X and we want the PPC/x86
     509                 :     * impls to be the same.
     510                 :     */
     511                 :    RealBreak();
     512                 : #elif defined(__GNUC__) && (defined(__i386__) || defined(__i386) || defined(__x86_64__))
     513               0 :    RealBreak();
     514                 : #elif defined(__arm__)
     515                 :    RealBreak();
     516                 : #elif defined(SOLARIS)
     517                 :    RealBreak();
     518                 : #else
     519                 : #warning do not know how to break on this platform
     520                 : #endif
     521               0 : }
     522                 : 
     523            1464 : static const nsDebugImpl kImpl;
     524                 : 
     525                 : nsresult
     526               0 : nsDebugImpl::Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
     527                 : {
     528               0 :   NS_ENSURE_NO_AGGREGATION(outer);
     529                 : 
     530                 :   return const_cast<nsDebugImpl*>(&kImpl)->
     531               0 :     QueryInterface(aIID, aInstancePtr);
     532                 : }
     533                 : 
     534                 : ////////////////////////////////////////////////////////////////////////////////
     535                 : 
     536                 : nsresult
     537             767 : NS_ErrorAccordingToNSPR()
     538                 : {
     539             767 :     PRErrorCode err = PR_GetError();
     540             767 :     switch (err) {
     541               0 :       case PR_OUT_OF_MEMORY_ERROR:              return NS_ERROR_OUT_OF_MEMORY;
     542               0 :       case PR_WOULD_BLOCK_ERROR:                return NS_BASE_STREAM_WOULD_BLOCK;
     543             767 :       case PR_FILE_NOT_FOUND_ERROR:             return NS_ERROR_FILE_NOT_FOUND;
     544               0 :       case PR_READ_ONLY_FILESYSTEM_ERROR:       return NS_ERROR_FILE_READ_ONLY;
     545               0 :       case PR_NOT_DIRECTORY_ERROR:              return NS_ERROR_FILE_NOT_DIRECTORY;
     546               0 :       case PR_IS_DIRECTORY_ERROR:               return NS_ERROR_FILE_IS_DIRECTORY;
     547               0 :       case PR_LOOP_ERROR:                       return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
     548               0 :       case PR_FILE_EXISTS_ERROR:                return NS_ERROR_FILE_ALREADY_EXISTS;
     549               0 :       case PR_FILE_IS_LOCKED_ERROR:             return NS_ERROR_FILE_IS_LOCKED;
     550               0 :       case PR_FILE_TOO_BIG_ERROR:               return NS_ERROR_FILE_TOO_BIG;
     551               0 :       case PR_NO_DEVICE_SPACE_ERROR:            return NS_ERROR_FILE_NO_DEVICE_SPACE;
     552               0 :       case PR_NAME_TOO_LONG_ERROR:              return NS_ERROR_FILE_NAME_TOO_LONG;
     553               0 :       case PR_DIRECTORY_NOT_EMPTY_ERROR:        return NS_ERROR_FILE_DIR_NOT_EMPTY;
     554               0 :       case PR_NO_ACCESS_RIGHTS_ERROR:           return NS_ERROR_FILE_ACCESS_DENIED;
     555               0 :       default:                                  return NS_ERROR_FAILURE;
     556                 :     }
     557            4392 : }
     558                 : 
     559                 : ////////////////////////////////////////////////////////////////////////////////
     560                 : 
     561                 : #ifdef XP_WIN
     562                 : bool sXPCOMHasLoadedNewDLLs = false;
     563                 : 
     564                 : NS_EXPORT void
     565                 : NS_SetHasLoadedNewDLLs()
     566                 : {
     567                 :   sXPCOMHasLoadedNewDLLs = true;
     568                 : }
     569                 : #endif

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