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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <precomp.h>
#include <cosv/mbstream.hxx>
// NOT FULLY DECLARED SERVICES
#include <string.h>
namespace csv
{
mbstream::mbstream( uintt i_nSize )
: dpOwnedMemorySpace( new char[i_nSize+1] ),
nSize( i_nSize ),
nCurPosition( 0 )
{
dpOwnedMemorySpace[i_nSize] = '\0';
}
mbstream::~mbstream()
{
delete [] dpOwnedMemorySpace;
}
void
mbstream::resize( uintt i_nSize )
{
DYN char * pNew = new char[i_nSize];
memcpy( pNew, dpOwnedMemorySpace, min(i_nSize,nSize) );
delete [] dpOwnedMemorySpace;
dpOwnedMemorySpace = pNew;
nSize = i_nSize;
}
uintt
mbstream::do_read( void * out_pDest,
uintt i_nNrofBytes )
{
uintt ret = min( i_nNrofBytes, nSize - nCurPosition );
memcpy( out_pDest, dpOwnedMemorySpace, ret );
nCurPosition += ret;
return ret;
}
bool
mbstream::inq_eod() const
{
return nCurPosition == nSize;
}
uintt
mbstream::do_write( const void * i_pSrc,
uintt i_nNrofBytes )
{
resize( max( 3 * (nSize+1) / 2, nCurPosition + i_nNrofBytes) );
memcpy( dpOwnedMemorySpace+nCurPosition, i_pSrc, i_nNrofBytes );
nCurPosition += i_nNrofBytes;
return i_nNrofBytes;
}
uintt
mbstream::do_seek( intt i_nDistance,
seek_dir i_eStartPoint )
{
switch ( i_eStartPoint )
{
case beg: if ( uintt(i_nDistance) < nSize )
nCurPosition = uintt(i_nDistance);
break;
case cur: if ( i_nDistance < 0
? uintt(-i_nDistance) <= nCurPosition
: uintt(i_nDistance) + nCurPosition < nSize )
nCurPosition = uintt( intt(nCurPosition) + i_nDistance );
break;
case end: if ( i_nDistance < 0
AND uintt(-i_nDistance) < nSize - 1 )
nCurPosition = uintt( intt(nSize) - 1 + i_nDistance );
break;
}
return position();
}
uintt
mbstream::inq_position() const
{
return nCurPosition;
}
} // namespace csv
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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