LCOV - code coverage report
Current view: directory - toolkit/components/url-classifier - nsCheckSummedOutputStream.h (source / functions) Found Hit Coverage
Test: app.info Lines: 8 8 100.0 %
Date: 2012-04-21 Functions: 4 4 100.0 %

       1                 : //* -*- Mode: C++; tab-width: 8; 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 Url Classifier code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * the Mozilla Foundation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Gian-Carlo Pascutto <gpascutto@mozilla.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * 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                 : #ifndef nsCheckSummedOutputStream_h__
      40                 : #define nsCheckSummedOutputStream_h__
      41                 : 
      42                 : #include "nsILocalFile.h"
      43                 : #include "nsIFile.h"
      44                 : #include "nsIOutputStream.h"
      45                 : #include "nsICryptoHash.h"
      46                 : #include "nsNetCID.h"
      47                 : #include "nsString.h"
      48                 : #include "../../../netwerk/base/src/nsFileStreams.h"
      49                 : #include "nsToolkitCompsCID.h"
      50                 : 
      51                 : class nsCheckSummedOutputStream : public nsSafeFileOutputStream
      52                 : {
      53                 : public:
      54                 :   NS_DECL_ISUPPORTS_INHERITED
      55                 : 
      56                 :   // Size of MD5 hash in bytes
      57                 :   static const PRUint32 CHECKSUM_SIZE = 16;
      58                 : 
      59              97 :   nsCheckSummedOutputStream() {}
      60             388 :   virtual ~nsCheckSummedOutputStream() { nsSafeFileOutputStream::Close(); }
      61                 : 
      62                 :   NS_IMETHOD Finish();
      63                 :   NS_IMETHOD Write(const char *buf, PRUint32 count, PRUint32 *result);
      64                 :   NS_IMETHOD Init(nsIFile* file, PRInt32 ioFlags, PRInt32 perm, PRInt32 behaviorFlags);
      65                 : 
      66                 : protected:
      67                 :   nsCOMPtr<nsICryptoHash> mHash;
      68                 :   nsCAutoString mCheckSum;
      69                 : };
      70                 : 
      71                 : // returns a file output stream which can be QI'ed to nsIFileOutputStream.
      72                 : inline nsresult
      73              97 : NS_NewCheckSummedOutputStream(nsIOutputStream **result,
      74                 :                               nsIFile         *file,
      75                 :                               PRInt32         ioFlags       = -1,
      76                 :                               PRInt32         perm          = -1,
      77                 :                               PRInt32         behaviorFlags =  0)
      78                 : {
      79             194 :     nsCOMPtr<nsIFileOutputStream> out = new nsCheckSummedOutputStream();
      80              97 :     nsresult rv = out->Init(file, ioFlags, perm, behaviorFlags);
      81              97 :     if (NS_SUCCEEDED(rv))
      82              97 :       NS_ADDREF(*result = out);  // cannot use nsCOMPtr::swap
      83              97 :     return rv;
      84                 : }
      85                 : 
      86                 : #endif

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