LCOV - app.info - netwerk/base/src/nsDNSPrefetch.cpp

LCOV - code coverage report
| Current view: | directory - netwerk/base/src - nsDNSPrefetch.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 32 | 24 | 75.0 %
| Date: | 2012-04-21 | Functions: | 11 | 9 | 81.8 %

           1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
           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.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is
          18                 :  * Mozilla Corporation.
          19                 :  * Portions created by the Initial Developer are Copyright (C) 2008
          20                 :  * the Initial Developer. All Rights Reserved.
          21                 :  *
          22                 :  * Contributor(s):
          23                 :  *   Patrick McManus <mcmanus@ducksong.com>
          24                 :  *
          25                 :  * Alternatively, the contents of this file may be used under the terms of
          26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
          27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          29                 :  * of those above. If you wish to allow use of your version of this file only
          30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          31                 :  * use your version of this file under the terms of the MPL, indicate your
          32                 :  * decision by deleting the provisions above and replace them with the notice
          33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          34                 :  * the provisions above, a recipient may use your version of this file under
          35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          36                 :  *
          37                 :  * ***** END LICENSE BLOCK ***** */
          38                 :
          39                 : #include "nsDNSPrefetch.h"
          40                 : #include "nsCOMPtr.h"
          41                 : #include "nsString.h"
          42                 :
          43                 : #include "nsNetUtil.h"
          44                 :
          45                 : #include "nsIDNSListener.h"
          46                 : #include "nsIDNSRecord.h"
          47                 : #include "nsIDNSService.h"
          48                 : #include "nsICancelable.h"
          49                 :
          50                 : static NS_DEFINE_CID(kDNSServiceCID, NS_DNSSERVICE_CID);
          51                 : static nsIDNSService *sDNSService = nsnull;
          52                 :
          53                 : nsresult
          54            2755 : nsDNSPrefetch::Initialize(nsIDNSService *aDNSService)
          55                 : {
          56            2755 :     NS_IF_RELEASE(sDNSService);
          57            2755 :     sDNSService =  aDNSService;
          58            2755 :     NS_IF_ADDREF(sDNSService);
          59            2755 :     return NS_OK;
          60                 : }
          61                 :
          62                 : nsresult
          63            1365 : nsDNSPrefetch::Shutdown()
          64                 : {
          65            1365 :     NS_IF_RELEASE(sDNSService);
          66            1365 :     return NS_OK;
          67                 : }
          68                 :
          69            3484 : nsDNSPrefetch::nsDNSPrefetch(nsIURI *aURI, bool storeTiming)
          70            3484 :     : mStoreTiming(storeTiming)
          71                 : {
          72            3484 :     aURI->GetAsciiHost(mHostname);
          73            3484 : }
          74                 :
          75                 : nsresult
          76            3484 : nsDNSPrefetch::Prefetch(PRUint16 flags)
          77                 : {
          78            3484 :     if (mHostname.IsEmpty())
          79               0 :         return NS_ERROR_NOT_AVAILABLE;
          80                 :
          81            3484 :     if (!sDNSService)
          82               0 :         return NS_ERROR_NOT_AVAILABLE;
          83                 :
          84            6968 :     nsCOMPtr<nsICancelable> tmpOutstanding;
          85                 :
          86            3484 :     if (mStoreTiming)
          87               0 :         mStartTimestamp = mozilla::TimeStamp::Now();
          88                 :     // If AsyncResolve fails, for example because prefetching is disabled,
          89                 :     // then our timing will be useless. However, in such a case,
          90                 :     // mEndTimestamp will be a null timestamp and callers should check
          91                 :     // TimingsValid() before using the timing.
          92                 :     return sDNSService->AsyncResolve(mHostname, flags | nsIDNSService::RESOLVE_SPECULATE,
          93            3484 :                                      this, nsnull, getter_AddRefs(tmpOutstanding));
          94                 : }
          95                 :
          96                 : nsresult
          97               0 : nsDNSPrefetch::PrefetchLow()
          98                 : {
          99               0 :     return Prefetch(nsIDNSService::RESOLVE_PRIORITY_LOW);
         100                 : }
         101                 :
         102                 : nsresult
         103               0 : nsDNSPrefetch::PrefetchMedium()
         104                 : {
         105               0 :     return Prefetch(nsIDNSService::RESOLVE_PRIORITY_MEDIUM);
         106                 : }
         107                 :
         108                 : nsresult
         109            3484 : nsDNSPrefetch::PrefetchHigh()
         110                 : {
         111            3484 :     return Prefetch(0);
         112                 : }
         113                 :
         114                 :
         115           27309 : NS_IMPL_THREADSAFE_ISUPPORTS1(nsDNSPrefetch, nsIDNSListener)
         116                 :
         117                 : NS_IMETHODIMP
         118            3481 : nsDNSPrefetch::OnLookupComplete(nsICancelable *request,
         119                 :                                 nsIDNSRecord  *rec,
         120                 :                                 nsresult       status)
         121                 : {
         122            3481 :     if (mStoreTiming)
         123               0 :         mEndTimestamp = mozilla::TimeStamp::Now();
         124            3481 :     return NS_OK;
         125                 : }

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