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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "SerfInputStream.hxx"
#include <cppuhelper/queryinterface.hxx>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <string.h>
using namespace cppu;
using namespace com::sun::star::io;
using namespace com::sun::star::uno;
using namespace http_dav_ucp;
// Constructor
SerfInputStream::SerfInputStream()
: mLen( 0 ),
mPos( 0 )
{
}
// Destructor
SerfInputStream::~SerfInputStream()
{
}
// AddToStream
// Allows the caller to add some data to the "end" of the stream
void SerfInputStream::AddToStream( const char * inBuf, sal_Int32 inLen )
{
mInputBuffer.realloc( sal::static_int_cast<sal_Int32>(mLen) + inLen );
memcpy( mInputBuffer.getArray() + mLen, inBuf, inLen );
mLen += inLen;
}
// queryInterface
Any SerfInputStream::queryInterface( const Type &type )
{
Any aRet = ::cppu::queryInterface( type,
static_cast< XInputStream * >( this ),
static_cast< XSeekable * >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
}
// readBytes
// "Reads" the specified number of bytes from the stream
sal_Int32 SAL_CALL SerfInputStream::readBytes(
css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
{
// Work out how much we're actually going to write
sal_Int32 theBytes2Read = nBytesToRead;
sal_Int32 theBytesLeft = sal::static_int_cast<sal_Int32>(mLen - mPos);
if ( theBytes2Read > theBytesLeft )
theBytes2Read = theBytesLeft;
// Realloc buffer.
aData.realloc( theBytes2Read );
// Write the data
memcpy(
aData.getArray(), mInputBuffer.getConstArray() + mPos, theBytes2Read );
// Update our stream position for next time
mPos += theBytes2Read;
return theBytes2Read;
}
// readSomeBytes
sal_Int32 SAL_CALL SerfInputStream::readSomeBytes(
css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
{
// Warning: What should this be doing ?
return readBytes( aData, nMaxBytesToRead );
}
// skipBytes
// Moves the current stream position forward
void SAL_CALL SerfInputStream::skipBytes( sal_Int32 nBytesToSkip )
{
mPos += nBytesToSkip;
if ( mPos >= mLen )
mPos = mLen;
}
// available
// Returns the number of unread bytes currently remaining on the stream
sal_Int32 SAL_CALL SerfInputStream::available( )
{
return std::min<sal_Int64>(SAL_MAX_INT32, mLen - mPos);
}
// closeInput
void SAL_CALL SerfInputStream::closeInput()
{
}
// seek
void SAL_CALL SerfInputStream::seek( sal_Int64 location )
{
if ( location < 0 || location > mLen )
throw css::lang::IllegalArgumentException();
mPos = location;
}
// getPosition
sal_Int64 SAL_CALL SerfInputStream::getPosition()
{
return mPos;
}
// getLength
sal_Int64 SAL_CALL SerfInputStream::getLength()
{
return mLen;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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