LCOV - code coverage report
Current view: directory - modules/libjar/zipwriter/src - nsDeflateConverter.h (source / functions) Found Hit Coverage
Test: app.info Lines: 11 11 100.0 %
Date: 2012-06-02 Functions: 3 3 100.0 %

       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 Zip Writer Component.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * Dave Townsend <dtownsend@oxymoronical.com>.
      18                 :  *
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2007
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *      Lan Qiang <jameslan@gmail.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                 : 
      40                 : #ifndef _nsDeflateConverter_h_
      41                 : #define _nsDeflateConverter_h_
      42                 : 
      43                 : #include "nsIStreamConverter.h"
      44                 : #include "nsCOMPtr.h"
      45                 : #include "nsIPipe.h"
      46                 : #include "zlib.h"
      47                 : 
      48                 : #define DEFLATECONVERTER_CLASSNAME "Deflate converter"
      49                 : #define DEFLATECONVERTER_CID { 0x461cd5dd, 0x73c6, 0x47a4, \
      50                 :            { 0x8c, 0xc3, 0x60, 0x3b, 0x37, 0xd8, 0x4a, 0x61 } }
      51                 : 
      52                 : #define ZIP_BUFLEN (4 * 1024 - 1)
      53                 : 
      54                 : class nsDeflateConverter : public nsIStreamConverter
      55                 : {
      56                 : public:
      57                 :     NS_DECL_ISUPPORTS
      58                 :     NS_DECL_NSIREQUESTOBSERVER
      59                 :     NS_DECL_NSISTREAMLISTENER
      60                 :     NS_DECL_NSISTREAMCONVERTER
      61                 : 
      62               6 :     nsDeflateConverter()
      63               6 :     {
      64                 :         // 6 is Z_DEFAULT_COMPRESSION but we need the actual value
      65               6 :         mLevel = 6;
      66               6 :     }
      67                 : 
      68            5146 :     nsDeflateConverter(PRInt32 level)
      69            5146 :     {
      70            5146 :         mLevel = level;
      71            5146 :     }
      72                 : 
      73                 : private:
      74                 : 
      75            5152 :     ~nsDeflateConverter()
      76            5152 :     {
      77            5152 :     }
      78                 :     
      79                 :     enum WrapMode {
      80                 :         WRAP_ZLIB,
      81                 :         WRAP_GZIP,
      82                 :         WRAP_NONE
      83                 :     };
      84                 : 
      85                 :     WrapMode mWrapMode;
      86                 :     PRUint32 mOffset;
      87                 :     PRInt32 mLevel;
      88                 :     nsCOMPtr<nsIStreamListener> mListener;
      89                 :     nsCOMPtr<nsISupports> mContext;
      90                 :     z_stream mZstream;
      91                 :     unsigned char mWriteBuffer[ZIP_BUFLEN];
      92                 : 
      93                 :     nsresult Init();
      94                 :     nsresult PushAvailableData(nsIRequest *aRequest, nsISupports *aContext);
      95                 : };
      96                 : 
      97                 : #endif

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