LCOV - code coverage report
Current view: top level - package/source/zipapi - MemoryByteGrabber.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 21 23 91.3 %
Date: 2012-08-25 Functions: 6 6 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 2 4 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : #ifndef _MEMORY_BYTE_GRABBER_HXX_
      20                 :            : #define _MEMORY_BYTE_GRABBER_HXX_
      21                 :            : 
      22                 :            : #include <com/sun/star/io/XInputStream.hpp>
      23                 :            : #include <com/sun/star/io/XSeekable.hpp>
      24                 :            : #include <string.h>
      25                 :            : 
      26                 :       1452 : class MemoryByteGrabber
      27                 :            : {
      28                 :            : protected:
      29                 :            :     const com::sun::star::uno::Sequence < sal_Int8 > maBuffer;
      30                 :            :     const sal_Int8 *mpBuffer;
      31                 :            :     sal_Int32 mnCurrent, mnEnd;
      32                 :            : public:
      33                 :       1452 :     MemoryByteGrabber ( const com::sun::star::uno::Sequence < sal_Int8 > & rBuffer )
      34                 :            :     : maBuffer ( rBuffer )
      35                 :       1452 :     , mpBuffer ( rBuffer.getConstArray() )
      36                 :            :     , mnCurrent ( 0 )
      37                 :       2904 :     , mnEnd ( rBuffer.getLength() )
      38                 :            :     {
      39                 :       1452 :     }
      40                 :            :     MemoryByteGrabber()
      41                 :            :     {
      42                 :            :     }
      43                 :     253121 :     const sal_Int8 * getCurrentPos () { return mpBuffer + mnCurrent; }
      44                 :            : 
      45                 :            :     // XInputStream chained
      46                 :            :     sal_Int32 SAL_CALL readBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData,
      47                 :            :                                             sal_Int32 nBytesToRead )
      48                 :            :         throw(com::sun::star::io::NotConnectedException, com::sun::star::io::BufferSizeExceededException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      49                 :            :     {
      50                 :            :         if ( nBytesToRead < 0)
      51                 :            :             throw com::sun::star::io::BufferSizeExceededException();
      52                 :            : 
      53                 :            :         if (nBytesToRead + mnCurrent > mnEnd)
      54                 :            :             nBytesToRead = mnEnd - mnCurrent;
      55                 :            : 
      56                 :            :         aData.realloc ( nBytesToRead );
      57                 :            :         rtl_copyMemory( aData.getArray(), mpBuffer + mnCurrent, nBytesToRead );
      58                 :            :         mnCurrent += nBytesToRead;
      59                 :            :         return nBytesToRead;
      60                 :            :     }
      61                 :            : 
      62                 :            :     sal_Int32 SAL_CALL readSomeBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData,
      63                 :            :                                                     sal_Int32 nMaxBytesToRead )
      64                 :            :         throw(com::sun::star::io::NotConnectedException, com::sun::star::io::BufferSizeExceededException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      65                 :            :     {
      66                 :            :         return readBytes( aData, nMaxBytesToRead );
      67                 :            :     }
      68                 :     759363 :     void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
      69                 :            :         throw(com::sun::star::io::NotConnectedException, com::sun::star::io::BufferSizeExceededException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      70                 :            :     {
      71                 :     759363 :         mnCurrent += nBytesToSkip;
      72                 :     759363 :     }
      73                 :            :     sal_Int32 SAL_CALL available(  )
      74                 :            :         throw(com::sun::star::io::NotConnectedException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      75                 :            :     {
      76                 :            :         return mnEnd - mnCurrent;
      77                 :            :     }
      78                 :            :     void SAL_CALL closeInput(  )
      79                 :            :         throw(com::sun::star::io::NotConnectedException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      80                 :            :     {
      81                 :            :     }
      82                 :            : 
      83                 :            :     // XSeekable chained...
      84                 :            :     sal_Int64 SAL_CALL seek( sal_Int64 location )
      85                 :            :         throw(com::sun::star::lang::IllegalArgumentException, com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      86                 :            :     {
      87                 :            :         if ( location < 0 || location > mnEnd )
      88                 :            :             throw com::sun::star::lang::IllegalArgumentException ();
      89                 :            :         mnCurrent = static_cast < sal_Int32 > ( location );
      90                 :            :         return mnCurrent;
      91                 :            :     }
      92                 :            :     sal_Int64 SAL_CALL getPosition(  )
      93                 :            :             throw(com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      94                 :            :     {
      95                 :            :         return mnCurrent;
      96                 :            :     }
      97                 :            :     sal_Int64 SAL_CALL getLength(  )
      98                 :            :             throw(com::sun::star::io::IOException, com::sun::star::uno::RuntimeException)
      99                 :            :     {
     100                 :            :         return mnEnd;
     101                 :            :     }
     102                 :            :     MemoryByteGrabber& operator >> (sal_Int8& rInt8)
     103                 :            :     {
     104                 :            :         if (mnCurrent + 1 > mnEnd )
     105                 :            :             rInt8 = 0;
     106                 :            :         else
     107                 :            :             rInt8 = mpBuffer [mnCurrent++] & 0xFF;
     108                 :            :         return *this;
     109                 :            :     }
     110                 :    1518726 :     MemoryByteGrabber& operator >> (sal_Int16& rInt16)
     111                 :            :     {
     112         [ -  + ]:    1518726 :         if (mnCurrent + 2 > mnEnd )
     113                 :          0 :             rInt16 = 0;
     114                 :            :         else
     115                 :            :         {
     116                 :    1518726 :             rInt16  =   mpBuffer[mnCurrent++] & 0xFF;
     117                 :    1518726 :             rInt16 |= ( mpBuffer[mnCurrent++] & 0xFF ) << 8;
     118                 :            :         }
     119                 :    1518726 :         return *this;
     120                 :            :     }
     121                 :    1518726 :     MemoryByteGrabber& operator >> (sal_Int32& rInt32)
     122                 :            :     {
     123         [ -  + ]:    1518726 :         if (mnCurrent + 4 > mnEnd )
     124                 :          0 :             rInt32 = 0;
     125                 :            :         else
     126                 :            :         {
     127                 :    1518726 :             rInt32  =   mpBuffer[mnCurrent++] & 0xFF;
     128                 :    1518726 :             rInt32 |= ( mpBuffer[mnCurrent++] & 0xFF ) << 8;
     129                 :    1518726 :             rInt32 |= ( mpBuffer[mnCurrent++] & 0xFF ) << 16;
     130                 :    1518726 :             rInt32 |= ( mpBuffer[mnCurrent++] & 0xFF ) << 24;
     131                 :            :         }
     132                 :    1518726 :         return *this;
     133                 :            :     }
     134                 :            : 
     135                 :            :     MemoryByteGrabber& operator >> (sal_uInt8& rInt8)
     136                 :            :     {
     137                 :            :         if (mnCurrent + 1 > mnEnd )
     138                 :            :             rInt8 = 0;
     139                 :            :         else
     140                 :            :             rInt8 = mpBuffer [mnCurrent++] & 0xFF;
     141                 :            :         return *this;
     142                 :            :     }
     143                 :            :     MemoryByteGrabber& operator >> (sal_uInt16& rInt16)
     144                 :            :     {
     145                 :            :         if (mnCurrent + 2 > mnEnd )
     146                 :            :             rInt16 = 0;
     147                 :            :         else
     148                 :            :         {
     149                 :            :             rInt16  =   mpBuffer [mnCurrent++] & 0xFF;
     150                 :            :             rInt16 |= ( mpBuffer [mnCurrent++] & 0xFF ) << 8;
     151                 :            :         }
     152                 :            :         return *this;
     153                 :            :     }
     154                 :            :     MemoryByteGrabber& operator >> (sal_uInt32& rInt32)
     155                 :            :     {
     156                 :            :         if (mnCurrent + 4 > mnEnd )
     157                 :            :             rInt32 = 0;
     158                 :            :         else
     159                 :            :         {
     160                 :            :             rInt32  =   mpBuffer [mnCurrent++] & 0xFF;
     161                 :            :             rInt32 |= ( mpBuffer [mnCurrent++] & 0xFF ) << 8;
     162                 :            :             rInt32 |= ( mpBuffer [mnCurrent++] & 0xFF ) << 16;
     163                 :            :             rInt32 |= ( mpBuffer [mnCurrent++] & 0xFF ) << 24;
     164                 :            :         }
     165                 :            :         return *this;
     166                 :            :     }
     167                 :            : };
     168                 :            : 
     169                 :            : #endif
     170                 :            : 
     171                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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