LCOV - code coverage report
Current view: directory - modules/libjar - nsJARInputStream.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 5 100.0 %
Date: 2012-06-02 Functions: 2 2 100.0 %

       1                 : /* nsJARInputStream.h
       2                 :  * 
       3                 :  * ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Netscape Communicator source code.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Netscape Communications Corporation.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 1999
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Mitch Stoltz <mstoltz@netscape.com>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #ifndef nsJARINPUTSTREAM_h__
      41                 : #define nsJARINPUTSTREAM_h__
      42                 : 
      43                 : #include "nsIInputStream.h"
      44                 : #include "nsJAR.h"
      45                 : #include "nsTArray.h"
      46                 : 
      47                 : /*-------------------------------------------------------------------------
      48                 :  * Class nsJARInputStream declaration. This class defines the type of the
      49                 :  * object returned by calls to nsJAR::GetInputStream(filename) for the
      50                 :  * purpose of reading a file item out of a JAR file. 
      51                 :  *------------------------------------------------------------------------*/
      52                 : class nsJARInputStream : public nsIInputStream
      53                 : {
      54                 :   public:
      55            1289 :     nsJARInputStream() : 
      56                 :         mOutSize(0), mInCrc(0), mOutCrc(0), mCurPos(0),
      57            1289 :         mMode(MODE_NOTINITED)
      58                 :     { 
      59            1289 :       memset(&mZs, 0, sizeof(z_stream));
      60            1289 :     }
      61                 : 
      62            1289 :     ~nsJARInputStream() { Close(); }
      63                 : 
      64                 :     NS_DECL_ISUPPORTS
      65                 :     NS_DECL_NSIINPUTSTREAM
      66                 :    
      67                 :     // takes ownership of |fd|, even on failure
      68                 :     nsresult InitFile(nsJAR *aJar, nsZipItem *item);
      69                 : 
      70                 :     nsresult InitDirectory(nsJAR *aJar,
      71                 :                            const nsACString& aJarDirSpec,
      72                 :                            const char* aDir);
      73                 :   
      74                 :   private:
      75                 :     nsRefPtr<nsZipHandle>  mFd;         // handle for reading
      76                 :     PRUint32               mOutSize;    // inflated size 
      77                 :     PRUint32               mInCrc;      // CRC as provided by the zipentry
      78                 :     PRUint32               mOutCrc;     // CRC as calculated by me
      79                 :     z_stream               mZs;         // zip data structure
      80                 : 
      81                 :     /* For directory reading */
      82                 :     nsRefPtr<nsJAR>        mJar;        // string reference to zipreader
      83                 :     PRUint32               mNameLen;    // length of dirname
      84                 :     nsCString              mBuffer;     // storage for generated text of stream
      85                 :     PRUint32               mCurPos;     // Current position in buffer
      86                 :     PRUint32               mArrPos;     // current position within mArray
      87                 :     nsTArray<nsCString>    mArray;      // array of names in (zip) directory
      88                 : 
      89                 :         typedef enum {
      90                 :         MODE_NOTINITED,
      91                 :         MODE_CLOSED,
      92                 :         MODE_DIRECTORY,
      93                 :         MODE_INFLATE,
      94                 :         MODE_COPY
      95                 :     } JISMode;
      96                 : 
      97                 :     JISMode                mMode;               // Modus of the stream
      98                 : 
      99                 :     nsresult ContinueInflate(char* aBuf, PRUint32 aCount, PRUint32* aBytesRead);
     100                 :     nsresult ReadDirectory(char* aBuf, PRUint32 aCount, PRUint32* aBytesRead);
     101                 :     PRUint32 CopyDataToBuffer(char* &aBuffer, PRUint32 &aCount);
     102                 : };
     103                 : 
     104                 : #endif /* nsJARINPUTSTREAM_h__ */
     105                 : 

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