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 <ZipPackageBuffer.hxx>
      21             : #include <string.h> // for memcpy
      22             : 
      23             : using namespace ::com::sun::star;
      24             : using namespace com::sun::star::uno;
      25             : using namespace com::sun::star::io;
      26             : using com::sun::star::lang::IllegalArgumentException;
      27             : 
      28          33 : ZipPackageBuffer::ZipPackageBuffer(sal_Int64 nNewBufferSize )
      29             : : m_nBufferSize (nNewBufferSize)
      30             : , m_nEnd(0)
      31             : , m_nCurrent(0)
      32          33 : , m_bMustInitBuffer ( sal_True )
      33             : {
      34          33 : }
      35          66 : ZipPackageBuffer::~ZipPackageBuffer(void)
      36             : {
      37          66 : }
      38             : 
      39           0 : sal_Int32 SAL_CALL ZipPackageBuffer::readBytes( Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
      40             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
      41             : {
      42           0 :     if (nBytesToRead < 0)
      43           0 :         throw BufferSizeExceededException(OSL_LOG_PREFIX, *this );
      44             : 
      45           0 :     if (nBytesToRead + m_nCurrent > m_nEnd)
      46           0 :         nBytesToRead = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
      47             : 
      48           0 :     aData.realloc ( nBytesToRead );
      49           0 :     memcpy(aData.getArray(), m_aBuffer.getConstArray() + m_nCurrent, nBytesToRead);
      50           0 :     m_nCurrent +=nBytesToRead;
      51           0 :     return nBytesToRead;
      52             : }
      53             : 
      54           0 : sal_Int32 SAL_CALL ZipPackageBuffer::readSomeBytes( Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
      55             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
      56             : {
      57           0 :     return readBytes(aData, nMaxBytesToRead);
      58             : }
      59           0 : void SAL_CALL ZipPackageBuffer::skipBytes( sal_Int32 nBytesToSkip )
      60             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
      61             : {
      62           0 :     if (nBytesToSkip < 0)
      63           0 :         throw BufferSizeExceededException(OSL_LOG_PREFIX, *this );
      64             : 
      65           0 :     if (nBytesToSkip + m_nCurrent > m_nEnd)
      66           0 :         nBytesToSkip = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
      67             : 
      68           0 :     m_nCurrent+=nBytesToSkip;
      69           0 : }
      70           0 : sal_Int32 SAL_CALL ZipPackageBuffer::available(  )
      71             :         throw(NotConnectedException, IOException, RuntimeException)
      72             : {
      73           0 :     return static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
      74             : }
      75           0 : void SAL_CALL ZipPackageBuffer::closeInput(  )
      76             :         throw(NotConnectedException, IOException, RuntimeException)
      77             : {
      78           0 : }
      79          63 : void SAL_CALL ZipPackageBuffer::writeBytes( const Sequence< sal_Int8 >& aData )
      80             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
      81             : {
      82          63 :     sal_Int64 nDataLen = aData.getLength(), nCombined = m_nEnd + nDataLen;
      83             : 
      84          63 :     if ( nCombined > m_nBufferSize)
      85             :     {
      86           0 :         do
      87           0 :             m_nBufferSize *=2;
      88             :         while (nCombined > m_nBufferSize);
      89           0 :         m_aBuffer.realloc(static_cast < sal_Int32 > (m_nBufferSize));
      90           0 :         m_bMustInitBuffer = sal_False;
      91             :     }
      92          63 :     else if (m_bMustInitBuffer)
      93             :     {
      94          33 :          m_aBuffer.realloc ( static_cast < sal_Int32 > ( m_nBufferSize ) );
      95          33 :         m_bMustInitBuffer = sal_False;
      96             :     }
      97          63 :     memcpy( m_aBuffer.getArray() + m_nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
      98          63 :     m_nCurrent+=nDataLen;
      99          63 :     if (m_nCurrent>m_nEnd)
     100          63 :         m_nEnd = m_nCurrent;
     101          63 : }
     102           0 : void SAL_CALL ZipPackageBuffer::flush(  )
     103             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
     104             : {
     105           0 : }
     106          33 : void SAL_CALL ZipPackageBuffer::closeOutput(  )
     107             :         throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
     108             : {
     109          33 : }
     110           0 : void SAL_CALL ZipPackageBuffer::seek( sal_Int64 location )
     111             :         throw( IllegalArgumentException, IOException, RuntimeException)
     112             : {
     113           0 :     if ( location > m_nEnd || location < 0 )
     114           0 :         throw IllegalArgumentException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >(), 1 );
     115           0 :     m_nCurrent = location;
     116           0 : }
     117          33 : sal_Int64 SAL_CALL ZipPackageBuffer::getPosition(  )
     118             :         throw(IOException, RuntimeException)
     119             : {
     120          33 :     return m_nCurrent;
     121             : }
     122           0 : sal_Int64 SAL_CALL ZipPackageBuffer::getLength(  )
     123             :         throw(IOException, RuntimeException)
     124             : {
     125           0 :     return m_nEnd;
     126             : }
     127             : 
     128             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */