LCOV - code coverage report
Current view: top level - libreoffice/package/source/zipapi - ByteGrabber.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 51 83 61.4 %
Date: 2012-12-27 Functions: 9 13 69.2 %
Legend: Lines: hit not hit

          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             : 
      20             : #include <ByteGrabber.hxx>
      21             : #include <com/sun/star/io/XSeekable.hpp>
      22             : #include <com/sun/star/io/XInputStream.hpp>
      23             : 
      24             : using namespace ::com::sun::star;
      25             : 
      26             : /** ByteGrabber implements the >> operators on an XOutputStream. This is
      27             :  *  potentially quite slow and may need to be optimised
      28             :  */
      29             : 
      30         453 : ByteGrabber::ByteGrabber(uno::Reference  < io::XInputStream > xIstream)
      31             : : xStream(xIstream)
      32             : , xSeek (xIstream, uno::UNO_QUERY )
      33         453 : , aSequence ( 4 )
      34             : {
      35         453 :     pSequence = aSequence.getArray();
      36         453 : }
      37             : 
      38         443 : ByteGrabber::~ByteGrabber()
      39             : {
      40         443 : }
      41             : 
      42           0 : void ByteGrabber::setInputStream (uno::Reference < io::XInputStream > xNewStream)
      43             : {
      44           0 :     ::osl::MutexGuard aGuard( m_aMutex );
      45           0 :     xStream = xNewStream;
      46           0 :     xSeek = uno::Reference < io::XSeekable > (xNewStream, uno::UNO_QUERY);
      47           0 : }
      48             : 
      49             : // XInputStream chained
      50        2682 : sal_Int32 SAL_CALL ByteGrabber::readBytes( uno::Sequence< sal_Int8 >& aData,
      51             :                                         sal_Int32 nBytesToRead )
      52             :     throw(io::NotConnectedException, io::BufferSizeExceededException, io::IOException, uno::RuntimeException)
      53             : {
      54        2682 :     ::osl::MutexGuard aGuard( m_aMutex );
      55        2682 :     return xStream->readBytes(aData, nBytesToRead );
      56             : }
      57             : 
      58             : // XSeekable chained...
      59        3102 : sal_Int64 SAL_CALL ByteGrabber::seek( sal_Int64 location )
      60             :     throw(lang::IllegalArgumentException, io::IOException, uno::RuntimeException)
      61             : {
      62        3102 :     ::osl::MutexGuard aGuard( m_aMutex );
      63        3102 :     if (xSeek.is() )
      64             :     {
      65        3102 :         sal_Int64 nLen = xSeek->getLength();
      66        3102 :         if ( location < 0 || location > nLen )
      67           0 :             throw lang::IllegalArgumentException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >(), 1 );
      68        3102 :         if (location > nLen )
      69           0 :             location = nLen;
      70        3102 :         xSeek->seek( location );
      71        6204 :         return location;
      72             :     }
      73             :     else
      74        3102 :         throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
      75             : }
      76             : 
      77        1842 : sal_Int64 SAL_CALL ByteGrabber::getPosition(  )
      78             :         throw(io::IOException, uno::RuntimeException)
      79             : {
      80        1842 :     ::osl::MutexGuard aGuard( m_aMutex );
      81        1842 :     if (xSeek.is() )
      82        3684 :         return xSeek->getPosition();
      83             :     else
      84        1842 :         throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
      85             : }
      86             : 
      87         420 : sal_Int64 SAL_CALL ByteGrabber::getLength(  )
      88             :         throw(io::IOException, uno::RuntimeException)
      89             : {
      90         420 :     ::osl::MutexGuard aGuard( m_aMutex );
      91         420 :     if (xSeek.is() )
      92         840 :         return xSeek->getLength();
      93             :     else
      94         420 :         throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
      95             : }
      96             : 
      97           0 : ByteGrabber& ByteGrabber::operator >> (sal_Int8& rInt8)
      98             : {
      99           0 :     ::osl::MutexGuard aGuard( m_aMutex );
     100           0 :     if (xStream->readBytes(aSequence,1) != 1)
     101           0 :         rInt8 = 0;
     102             :     else
     103           0 :         rInt8 = aSequence[0] & 0xFF;
     104           0 :     return *this;
     105             : }
     106             : 
     107        9210 : ByteGrabber& ByteGrabber::operator >> (sal_Int16& rInt16)
     108             : {
     109        9210 :     ::osl::MutexGuard aGuard( m_aMutex );
     110        9210 :     if (xStream->readBytes ( aSequence, 2) != 2)
     111           0 :         rInt16 = 0;
     112             :     else
     113             :     {
     114        9210 :         pSequence = aSequence.getConstArray();
     115             :         rInt16 = static_cast <sal_Int16>
     116        9210 :                ( (pSequence[0] & 0xFF)
     117        9210 :               | (pSequence[1] & 0xFF) << 8);
     118             :     }
     119        9210 :     return *this;
     120             : }
     121             : 
     122       10050 : ByteGrabber& ByteGrabber::operator >> (sal_Int32& rInt32)
     123             : {
     124       10050 :     ::osl::MutexGuard aGuard( m_aMutex );
     125             : 
     126       10050 :     if (xStream->readBytes(aSequence, 4) != 4)
     127           0 :         rInt32 = 0;
     128             :     else
     129             :     {
     130       10050 :         pSequence = aSequence.getConstArray();
     131             :         rInt32 = static_cast < sal_Int32 >
     132       10050 :                 ( (pSequence[0] & 0xFF)
     133       10050 :               | ( pSequence[1] & 0xFF ) << 8
     134       10050 :               | ( pSequence[2] & 0xFF ) << 16
     135       30150 :               | ( pSequence[3] & 0xFF ) << 24 );
     136             :     }
     137       10050 :     return *this;
     138             : }
     139             : 
     140           0 : ByteGrabber& ByteGrabber::operator >> (sal_uInt8& rInt8)
     141             : {
     142           0 :     ::osl::MutexGuard aGuard( m_aMutex );
     143             : 
     144           0 :     if (xStream->readBytes(aSequence,1) != 1)
     145           0 :         rInt8 = 0;
     146             :     else
     147           0 :         rInt8 = static_cast < sal_uInt8 > (aSequence[0] & 0xFF );
     148           0 :     return *this;
     149             : }
     150         420 : ByteGrabber& ByteGrabber::operator >> (sal_uInt16& rInt16)
     151             : {
     152         420 :     ::osl::MutexGuard aGuard( m_aMutex );
     153             : 
     154         420 :     if (xStream->readBytes(aSequence, 2) != 2)
     155           0 :         rInt16 = 0;
     156             :     else
     157             :     {
     158         420 :         pSequence = aSequence.getConstArray();
     159             :         rInt16 = static_cast <sal_uInt16>
     160         420 :                ( (pSequence[0] & 0xFF)
     161         420 :               | (pSequence[1] & 0xFF) << 8);
     162             :     }
     163         420 :     return *this;
     164             : }
     165           0 : ByteGrabber& ByteGrabber::operator >> (sal_uInt32& ruInt32)
     166             : {
     167           0 :     ::osl::MutexGuard aGuard( m_aMutex );
     168             : 
     169           0 :     if (xStream->readBytes(aSequence, 4) != 4)
     170           0 :         ruInt32 = 0;
     171             :     else
     172             :     {
     173           0 :         pSequence = aSequence.getConstArray();
     174             :         ruInt32 = static_cast < sal_uInt32 >
     175           0 :                 ( (pSequence[0] & 0xFF)
     176           0 :               | ( pSequence[1] & 0xFF ) << 8
     177           0 :               | ( pSequence[2] & 0xFF ) << 16
     178           0 :               | ( pSequence[3] & 0xFF ) << 24 );
     179             :     }
     180           0 :     return *this;
     181             : }
     182             : 
     183             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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