LCOV - code coverage report
Current view: directory - netwerk/base/src - nsStreamTransportService.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 180 79 43.9 %
Date: 2012-06-02 Functions: 41 19 46.3 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is Mozilla.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * Netscape Communications Corporation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2002
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Darin Fisher <darin@netscape.com>
      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                 : #include "nsStreamTransportService.h"
      39                 : #include "nsXPCOMCIDInternal.h"
      40                 : #include "nsNetSegmentUtils.h"
      41                 : #include "nsTransportUtils.h"
      42                 : #include "nsStreamUtils.h"
      43                 : #include "nsNetError.h"
      44                 : #include "nsNetCID.h"
      45                 : 
      46                 : #include "nsIServiceManager.h"
      47                 : #include "nsIAsyncInputStream.h"
      48                 : #include "nsIAsyncOutputStream.h"
      49                 : #include "nsISeekableStream.h"
      50                 : #include "nsIPipe.h"
      51                 : #include "nsITransport.h"
      52                 : #include "nsIRunnable.h"
      53                 : #include "nsIObserverService.h"
      54                 : #include "mozilla/Services.h"
      55                 : 
      56                 : //-----------------------------------------------------------------------------
      57                 : // nsInputStreamTransport
      58                 : //
      59                 : // Implements nsIInputStream as a wrapper around the real input stream.  This
      60                 : // allows the transport to support seeking, range-limiting, progress reporting,
      61                 : // and close-when-done semantics while utilizing NS_AsyncCopy.
      62                 : //-----------------------------------------------------------------------------
      63                 : 
      64                 : class nsInputStreamTransport : public nsITransport
      65                 :                              , public nsIInputStream
      66                 : {
      67                 : public:
      68                 :     NS_DECL_ISUPPORTS
      69                 :     NS_DECL_NSITRANSPORT
      70                 :     NS_DECL_NSIINPUTSTREAM
      71                 : 
      72             281 :     nsInputStreamTransport(nsIInputStream *source,
      73                 :                            PRUint64 offset,
      74                 :                            PRUint64 limit,
      75                 :                            bool closeWhenDone)
      76                 :         : mSource(source)
      77                 :         , mOffset(offset)
      78                 :         , mLimit(limit)
      79                 :         , mCloseWhenDone(closeWhenDone)
      80                 :         , mFirstTime(true)
      81             281 :         , mInProgress(false)
      82                 :     {
      83             281 :     }
      84                 : 
      85             562 :     virtual ~nsInputStreamTransport()
      86             281 :     {
      87            1124 :     }
      88                 : 
      89                 : private:
      90                 :     nsCOMPtr<nsIAsyncInputStream>   mPipeIn;
      91                 : 
      92                 :     // while the copy is active, these members may only be accessed from the
      93                 :     // nsIInputStream implementation.
      94                 :     nsCOMPtr<nsITransportEventSink> mEventSink;
      95                 :     nsCOMPtr<nsIInputStream>        mSource;
      96                 :     PRUint64                        mOffset;
      97                 :     PRUint64                        mLimit;
      98                 :     bool                            mCloseWhenDone;
      99                 :     bool                            mFirstTime;
     100                 : 
     101                 :     // this variable serves as a lock to prevent the state of the transport
     102                 :     // from being modified once the copy is in progress.
     103                 :     bool                            mInProgress;
     104                 : };
     105                 : 
     106            3220 : NS_IMPL_THREADSAFE_ISUPPORTS2(nsInputStreamTransport,
     107                 :                               nsITransport,
     108                 :                               nsIInputStream)
     109                 : 
     110                 : /** nsITransport **/
     111                 : 
     112                 : NS_IMETHODIMP
     113             281 : nsInputStreamTransport::OpenInputStream(PRUint32 flags,
     114                 :                                         PRUint32 segsize,
     115                 :                                         PRUint32 segcount,
     116                 :                                         nsIInputStream **result)
     117                 : {
     118             281 :     NS_ENSURE_TRUE(!mInProgress, NS_ERROR_IN_PROGRESS);
     119                 : 
     120                 :     nsresult rv;
     121                 :     nsCOMPtr<nsIEventTarget> target =
     122             562 :             do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
     123             281 :     if (NS_FAILED(rv)) return rv;
     124                 : 
     125                 :     // XXX if the caller requests an unbuffered stream, then perhaps
     126                 :     //     we'd want to simply return mSource; however, then we would
     127                 :     //     not be reading mSource on a background thread.  is this ok?
     128                 :  
     129             281 :     bool nonblocking = !(flags & OPEN_BLOCKING);
     130                 : 
     131             281 :     net_ResolveSegmentParams(segsize, segcount);
     132                 : 
     133             562 :     nsCOMPtr<nsIAsyncOutputStream> pipeOut;
     134             281 :     rv = NS_NewPipe2(getter_AddRefs(mPipeIn),
     135             281 :                      getter_AddRefs(pipeOut),
     136                 :                      nonblocking, true,
     137             281 :                      segsize, segcount);
     138             281 :     if (NS_FAILED(rv)) return rv;
     139                 : 
     140             281 :     mInProgress = true;
     141                 : 
     142                 :     // startup async copy process...
     143                 :     rv = NS_AsyncCopy(this, pipeOut, target,
     144             281 :                       NS_ASYNCCOPY_VIA_WRITESEGMENTS, segsize);
     145             281 :     if (NS_SUCCEEDED(rv))
     146             281 :         NS_ADDREF(*result = mPipeIn);
     147                 : 
     148             281 :     return rv;
     149                 : }
     150                 : 
     151                 : NS_IMETHODIMP
     152               0 : nsInputStreamTransport::OpenOutputStream(PRUint32 flags,
     153                 :                                          PRUint32 segsize,
     154                 :                                          PRUint32 segcount,
     155                 :                                          nsIOutputStream **result)
     156                 : {
     157                 :     // this transport only supports reading!
     158               0 :     NS_NOTREACHED("nsInputStreamTransport::OpenOutputStream");
     159               0 :     return NS_ERROR_UNEXPECTED;
     160                 : }
     161                 : 
     162                 : NS_IMETHODIMP
     163              17 : nsInputStreamTransport::Close(nsresult reason)
     164                 : {
     165              17 :     if (NS_SUCCEEDED(reason))
     166               0 :         reason = NS_BASE_STREAM_CLOSED;
     167                 : 
     168              17 :     return mPipeIn->CloseWithStatus(reason);
     169                 : }
     170                 : 
     171                 : NS_IMETHODIMP
     172              17 : nsInputStreamTransport::SetEventSink(nsITransportEventSink *sink,
     173                 :                                      nsIEventTarget *target)
     174                 : {
     175              17 :     NS_ENSURE_TRUE(!mInProgress, NS_ERROR_IN_PROGRESS);
     176                 : 
     177              17 :     if (target)
     178              17 :         return net_NewTransportEventSinkProxy(getter_AddRefs(mEventSink),
     179              17 :                                               sink, target);
     180                 : 
     181               0 :     mEventSink = sink;
     182               0 :     return NS_OK;
     183                 : }
     184                 : 
     185                 : /** nsIInputStream **/
     186                 : 
     187                 : NS_IMETHODIMP
     188             281 : nsInputStreamTransport::Close()
     189                 : {
     190             281 :     if (mCloseWhenDone)
     191             281 :         mSource->Close();
     192                 : 
     193                 :     // make additional reads return early...
     194             281 :     mOffset = mLimit = 0;
     195             281 :     return NS_OK;
     196                 : }
     197                 : 
     198                 : NS_IMETHODIMP
     199               0 : nsInputStreamTransport::Available(PRUint32 *result)
     200                 : {
     201               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     202                 : }
     203                 : 
     204                 : NS_IMETHODIMP
     205             563 : nsInputStreamTransport::Read(char *buf, PRUint32 count, PRUint32 *result)
     206                 : {
     207             563 :     if (mFirstTime) {
     208             281 :         mFirstTime = false;
     209             281 :         if (mOffset != 0) {
     210                 :             // read from current position if offset equal to max
     211             281 :             if (mOffset != LL_MAXUINT) {
     212               0 :                 nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mSource);
     213               0 :                 if (seekable)
     214               0 :                     seekable->Seek(nsISeekableStream::NS_SEEK_SET, mOffset);
     215                 :             }
     216                 :             // reset offset to zero so we can use it to enforce limit
     217             281 :             mOffset = 0;
     218                 :         }
     219                 :     }
     220                 : 
     221                 :     // limit amount read
     222             563 :     PRUint32 max = mLimit - mOffset;
     223             563 :     if (max == 0) {
     224               0 :         *result = 0;
     225               0 :         return NS_OK;
     226                 :     }
     227                 :         
     228             563 :     if (count > max)
     229               0 :         count = max;
     230                 : 
     231             563 :     nsresult rv = mSource->Read(buf, count, result);
     232                 : 
     233             563 :     if (NS_SUCCEEDED(rv)) {
     234             563 :         mOffset += *result;
     235             563 :         if (mEventSink)
     236              34 :             mEventSink->OnTransportStatus(this, STATUS_READING, mOffset, mLimit);
     237                 :     }
     238             563 :     return rv;
     239                 : }
     240                 : 
     241                 : NS_IMETHODIMP
     242               0 : nsInputStreamTransport::ReadSegments(nsWriteSegmentFun writer, void *closure,
     243                 :                                      PRUint32 count, PRUint32 *result)
     244                 : {
     245               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     246                 : }
     247                 : 
     248                 : NS_IMETHODIMP
     249               0 : nsInputStreamTransport::IsNonBlocking(bool *result)
     250                 : {
     251               0 :     *result = false;
     252               0 :     return NS_OK;
     253                 : }
     254                 : 
     255                 : //-----------------------------------------------------------------------------
     256                 : // nsOutputStreamTransport
     257                 : //
     258                 : // Implements nsIOutputStream as a wrapper around the real input stream.  This
     259                 : // allows the transport to support seeking, range-limiting, progress reporting,
     260                 : // and close-when-done semantics while utilizing NS_AsyncCopy.
     261                 : //-----------------------------------------------------------------------------
     262                 : 
     263                 : class nsOutputStreamTransport : public nsITransport
     264                 :                               , public nsIOutputStream
     265                 : {
     266                 : public:
     267                 :     NS_DECL_ISUPPORTS
     268                 :     NS_DECL_NSITRANSPORT
     269                 :     NS_DECL_NSIOUTPUTSTREAM
     270                 : 
     271               0 :     nsOutputStreamTransport(nsIOutputStream *sink,
     272                 :                             PRUint64 offset,
     273                 :                             PRUint64 limit,
     274                 :                             bool closeWhenDone)
     275                 :         : mSink(sink)
     276                 :         , mOffset(offset)
     277                 :         , mLimit(limit)
     278                 :         , mCloseWhenDone(closeWhenDone)
     279                 :         , mFirstTime(true)
     280               0 :         , mInProgress(false)
     281                 :     {
     282               0 :     }
     283                 : 
     284               0 :     virtual ~nsOutputStreamTransport()
     285               0 :     {
     286               0 :     }
     287                 : 
     288                 : private:
     289                 :     nsCOMPtr<nsIAsyncOutputStream>  mPipeOut;
     290                 :  
     291                 :     // while the copy is active, these members may only be accessed from the
     292                 :     // nsIOutputStream implementation.
     293                 :     nsCOMPtr<nsITransportEventSink> mEventSink;
     294                 :     nsCOMPtr<nsIOutputStream>       mSink;
     295                 :     PRUint64                        mOffset;
     296                 :     PRUint64                        mLimit;
     297                 :     bool                            mCloseWhenDone;
     298                 :     bool                            mFirstTime;
     299                 : 
     300                 :     // this variable serves as a lock to prevent the state of the transport
     301                 :     // from being modified once the copy is in progress.
     302                 :     bool                            mInProgress;
     303                 : };
     304                 : 
     305               0 : NS_IMPL_THREADSAFE_ISUPPORTS2(nsOutputStreamTransport,
     306                 :                               nsITransport,
     307                 :                               nsIOutputStream)
     308                 : 
     309                 : /** nsITransport **/
     310                 : 
     311                 : NS_IMETHODIMP
     312               0 : nsOutputStreamTransport::OpenInputStream(PRUint32 flags,
     313                 :                                          PRUint32 segsize,
     314                 :                                          PRUint32 segcount,
     315                 :                                          nsIInputStream **result)
     316                 : {
     317                 :     // this transport only supports writing!
     318               0 :     NS_NOTREACHED("nsOutputStreamTransport::OpenInputStream");
     319               0 :     return NS_ERROR_UNEXPECTED;
     320                 : }
     321                 : 
     322                 : NS_IMETHODIMP
     323               0 : nsOutputStreamTransport::OpenOutputStream(PRUint32 flags,
     324                 :                                           PRUint32 segsize,
     325                 :                                           PRUint32 segcount,
     326                 :                                           nsIOutputStream **result)
     327                 : {
     328               0 :     NS_ENSURE_TRUE(!mInProgress, NS_ERROR_IN_PROGRESS);
     329                 : 
     330                 :     nsresult rv;
     331                 :     nsCOMPtr<nsIEventTarget> target =
     332               0 :             do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
     333               0 :     if (NS_FAILED(rv)) return rv;
     334                 : 
     335                 :     // XXX if the caller requests an unbuffered stream, then perhaps
     336                 :     //     we'd want to simply return mSink; however, then we would
     337                 :     //     not be writing to mSink on a background thread.  is this ok?
     338                 :  
     339               0 :     bool nonblocking = !(flags & OPEN_BLOCKING);
     340                 : 
     341               0 :     net_ResolveSegmentParams(segsize, segcount);
     342                 : 
     343               0 :     nsCOMPtr<nsIAsyncInputStream> pipeIn;
     344               0 :     rv = NS_NewPipe2(getter_AddRefs(pipeIn),
     345               0 :                      getter_AddRefs(mPipeOut),
     346                 :                      true, nonblocking,
     347               0 :                      segsize, segcount);
     348               0 :     if (NS_FAILED(rv)) return rv;
     349                 : 
     350               0 :     mInProgress = true;
     351                 : 
     352                 :     // startup async copy process...
     353                 :     rv = NS_AsyncCopy(pipeIn, this, target,
     354               0 :                       NS_ASYNCCOPY_VIA_READSEGMENTS, segsize);
     355               0 :     if (NS_SUCCEEDED(rv))
     356               0 :         NS_ADDREF(*result = mPipeOut);
     357                 : 
     358               0 :     return rv;
     359                 : }
     360                 : 
     361                 : NS_IMETHODIMP
     362               0 : nsOutputStreamTransport::Close(nsresult reason)
     363                 : {
     364               0 :     if (NS_SUCCEEDED(reason))
     365               0 :         reason = NS_BASE_STREAM_CLOSED;
     366                 : 
     367               0 :     return mPipeOut->CloseWithStatus(reason);
     368                 : }
     369                 : 
     370                 : NS_IMETHODIMP
     371               0 : nsOutputStreamTransport::SetEventSink(nsITransportEventSink *sink,
     372                 :                                       nsIEventTarget *target)
     373                 : {
     374               0 :     NS_ENSURE_TRUE(!mInProgress, NS_ERROR_IN_PROGRESS);
     375                 : 
     376               0 :     if (target)
     377               0 :         return net_NewTransportEventSinkProxy(getter_AddRefs(mEventSink),
     378               0 :                                               sink, target);
     379                 : 
     380               0 :     mEventSink = sink;
     381               0 :     return NS_OK;
     382                 : }
     383                 : 
     384                 : /** nsIOutputStream **/
     385                 : 
     386                 : NS_IMETHODIMP
     387               0 : nsOutputStreamTransport::Close()
     388                 : {
     389               0 :     if (mCloseWhenDone)
     390               0 :         mSink->Close();
     391                 : 
     392                 :     // make additional writes return early...
     393               0 :     mOffset = mLimit = 0;
     394               0 :     return NS_OK;
     395                 : }
     396                 : 
     397                 : NS_IMETHODIMP
     398               0 : nsOutputStreamTransport::Flush()
     399                 : {
     400               0 :     return NS_OK;
     401                 : }
     402                 : 
     403                 : NS_IMETHODIMP
     404               0 : nsOutputStreamTransport::Write(const char *buf, PRUint32 count, PRUint32 *result)
     405                 : {
     406               0 :     if (mFirstTime) {
     407               0 :         mFirstTime = false;
     408               0 :         if (mOffset != 0) {
     409                 :             // write to current position if offset equal to max
     410               0 :             if (mOffset != LL_MAXUINT) {
     411               0 :                 nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mSink);
     412               0 :                 if (seekable)
     413               0 :                     seekable->Seek(nsISeekableStream::NS_SEEK_SET, mOffset);
     414                 :             }
     415                 :             // reset offset to zero so we can use it to enforce limit
     416               0 :             mOffset = 0;
     417                 :         }
     418                 :     }
     419                 : 
     420                 :     // limit amount written
     421               0 :     PRUint32 max = mLimit - mOffset;
     422               0 :     if (max == 0) {
     423               0 :         *result = 0;
     424               0 :         return NS_OK;
     425                 :     }
     426                 :         
     427               0 :     if (count > max)
     428               0 :         count = max;
     429                 : 
     430               0 :     nsresult rv = mSink->Write(buf, count, result);
     431                 : 
     432               0 :     if (NS_SUCCEEDED(rv)) {
     433               0 :         mOffset += *result;
     434               0 :         if (mEventSink)
     435               0 :             mEventSink->OnTransportStatus(this, STATUS_WRITING, mOffset, mLimit);
     436                 :     }
     437               0 :     return rv;
     438                 : }
     439                 : 
     440                 : NS_IMETHODIMP
     441               0 : nsOutputStreamTransport::WriteSegments(nsReadSegmentFun reader, void *closure,
     442                 :                                        PRUint32 count, PRUint32 *result)
     443                 : {
     444               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     445                 : }
     446                 : 
     447                 : NS_IMETHODIMP
     448               0 : nsOutputStreamTransport::WriteFrom(nsIInputStream *in, PRUint32 count, PRUint32 *result)
     449                 : {
     450               0 :     return NS_ERROR_NOT_IMPLEMENTED;
     451                 : }
     452                 : 
     453                 : NS_IMETHODIMP
     454               0 : nsOutputStreamTransport::IsNonBlocking(bool *result)
     455                 : {
     456               0 :     *result = false;
     457               0 :     return NS_OK;
     458                 : }
     459                 : 
     460                 : //-----------------------------------------------------------------------------
     461                 : // nsStreamTransportService
     462                 : //-----------------------------------------------------------------------------
     463                 : 
     464             168 : nsStreamTransportService::~nsStreamTransportService()
     465                 : {
     466              84 :     NS_ASSERTION(!mPool, "thread pool wasn't shutdown");
     467              84 : }
     468                 : 
     469                 : nsresult
     470              84 : nsStreamTransportService::Init()
     471                 : {
     472              84 :     mPool = do_CreateInstance(NS_THREADPOOL_CONTRACTID);
     473              84 :     NS_ENSURE_STATE(mPool);
     474                 : 
     475                 :     // Configure the pool
     476              84 :     mPool->SetThreadLimit(4);
     477              84 :     mPool->SetIdleThreadLimit(1);
     478              84 :     mPool->SetIdleThreadTimeout(PR_SecondsToInterval(60));
     479                 : 
     480                 :     nsCOMPtr<nsIObserverService> obsSvc =
     481             168 :         mozilla::services::GetObserverService();
     482              84 :     if (obsSvc)
     483              84 :         obsSvc->AddObserver(this, "xpcom-shutdown-threads", false);
     484              84 :     return NS_OK;
     485                 : }
     486                 : 
     487            9134 : NS_IMPL_THREADSAFE_ISUPPORTS3(nsStreamTransportService,
     488                 :                               nsIStreamTransportService,
     489                 :                               nsIEventTarget,
     490                 :                               nsIObserver)
     491                 : 
     492                 : NS_IMETHODIMP
     493             722 : nsStreamTransportService::Dispatch(nsIRunnable *task, PRUint32 flags)
     494                 : {
     495             722 :     NS_ENSURE_TRUE(mPool, NS_ERROR_NOT_INITIALIZED);
     496             722 :     return mPool->Dispatch(task, flags);
     497                 : }
     498                 : 
     499                 : NS_IMETHODIMP
     500               0 : nsStreamTransportService::IsOnCurrentThread(bool *result)
     501                 : {
     502               0 :     NS_ENSURE_TRUE(mPool, NS_ERROR_NOT_INITIALIZED);
     503               0 :     return mPool->IsOnCurrentThread(result);
     504                 : }
     505                 : 
     506                 : NS_IMETHODIMP
     507             281 : nsStreamTransportService::CreateInputTransport(nsIInputStream *stream,
     508                 :                                                PRInt64 offset,
     509                 :                                                PRInt64 limit,
     510                 :                                                bool closeWhenDone,
     511                 :                                                nsITransport **result)
     512                 : {
     513                 :     nsInputStreamTransport *trans =
     514             281 :         new nsInputStreamTransport(stream, offset, limit, closeWhenDone);
     515             281 :     if (!trans)
     516               0 :         return NS_ERROR_OUT_OF_MEMORY;
     517             281 :     NS_ADDREF(*result = trans);
     518             281 :     return NS_OK;
     519                 : }
     520                 : 
     521                 : NS_IMETHODIMP
     522               0 : nsStreamTransportService::CreateOutputTransport(nsIOutputStream *stream,
     523                 :                                                 PRInt64 offset,
     524                 :                                                 PRInt64 limit,
     525                 :                                                 bool closeWhenDone,
     526                 :                                                 nsITransport **result)
     527                 : {
     528                 :     nsOutputStreamTransport *trans =
     529               0 :         new nsOutputStreamTransport(stream, offset, limit, closeWhenDone);
     530               0 :     if (!trans)
     531               0 :         return NS_ERROR_OUT_OF_MEMORY;
     532               0 :     NS_ADDREF(*result = trans);
     533               0 :     return NS_OK;
     534                 : }
     535                 : 
     536                 : NS_IMETHODIMP
     537              84 : nsStreamTransportService::Observe(nsISupports *subject, const char *topic,
     538                 :                                   const PRUnichar *data)
     539                 : {
     540              84 :   NS_ASSERTION(strcmp(topic, "xpcom-shutdown-threads") == 0, "oops");
     541                 : 
     542              84 :   if (mPool) {
     543              84 :     mPool->Shutdown();
     544              84 :     mPool = nsnull;
     545                 :   }
     546              84 :   return NS_OK;
     547                 : }

Generated by: LCOV version 1.7