src/PlatformSupport/StdBinInputStream.cpp

/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xalan" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.ibm.com.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * $ Id: $
 *
 *
 * @author <a href="mailto:david_n_bertoni@lotus.com">David N. Bertoni</a>
 */
#include "StdBinInputStream.hpp"



#if !defined(XALAN_OLD_STREAMS)
#if defined(XALAN_OLD_STREAM_HEADERS)
#include <iostream.h>
#else
#include <istream>
#endif
#endif



#if defined(XALAN_NO_NAMESPACES)
StdBinInputStream::StdBinInputStream(istream&		theStream) :
#else
StdBinInputStream::StdBinInputStream(std::istream&	theStream) :
#endif
	m_stream(theStream)
{
}



StdBinInputStream::~StdBinInputStream()
{
}



unsigned int
StdBinInputStream::curPos() const
{
	return m_stream.tellg();
}



unsigned int
StdBinInputStream::readBytes(
			XMLByte* const      toFill,
			const unsigned int	maxToRead)
{
	if (!m_stream)
	{
		return 0;
	}
	else
	{
		unsigned long	i = 0;

		while(i < maxToRead)
		{
			const int	ch = m_stream.get();

			if (ch == EOF)
			{
				break;
			}
			else
			{
				toFill[i] = XMLByte(ch);

				++i;
			}
		}

		return i;
	}
}