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* Copyright (c) 1999-2000 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,
* "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 "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* 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/>.
*/
/*
* $Log$
* Revision 1.2 2002/11/04 15:22:03 tng
* C++ Namespace Support.
*
* Revision 1.1.1.1 2002/02/01 22:22:10 peiyongz
* sane_include
*
* Revision 1.5 2001/11/28 19:05:29 knoaman
* Bug 4442: fix by mlovett@uk.ibm.com
*
* Revision 1.4 2000/05/15 22:31:20 andyh
* Replace #include<memory.h> with <string.h> everywhere.
*
* Revision 1.3 2000/03/02 19:54:38 roddey
* This checkin includes many changes done while waiting for the
* 1.1.0 code to be finished. I can't list them all here, but a list is
* available elsewhere.
*
* Revision 1.2 2000/02/06 07:48:01 rahulj
* Year 2K copyright swat.
*
* Revision 1.1.1.1 1999/11/09 01:04:05 twl
* Initial checkin
*
* Revision 1.2 1999/11/08 20:45:04 rahul
* Swat for adding in Product name and CVS comment log variable.
*
*/
// ---------------------------------------------------------------------------
// Includes
// ---------------------------------------------------------------------------
#include <xercesc/util/BinMemInputStream.hpp>
#include <string.h>
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// ---------------------------------------------------------------------------
// BinMemInputStream: Constructors and Destructor
// ---------------------------------------------------------------------------
BinMemInputStream::BinMemInputStream( const XMLByte* const initData
, const unsigned int capacity
, const BufOpts bufOpt) :
fBuffer(0)
, fBufOpt(bufOpt)
, fCapacity(capacity)
, fCurIndex(0)
{
// According to the buffer option, do the right thing
if (fBufOpt == BufOpt_Copy)
{
XMLByte* tmpBuf = new XMLByte[fCapacity];
memcpy(tmpBuf, initData, capacity);
fBuffer = tmpBuf;
}
else
{
fBuffer = initData;
}
}
BinMemInputStream::~BinMemInputStream()
{
//
// If we adopted or copied the buffer, then clean it up. We have to
// cast off the const'ness in that case in order to delete it.
//
if ((fBufOpt == BufOpt_Adopt) || (fBufOpt == BufOpt_Copy))
delete [] (XMLByte*)fBuffer;
}
// ---------------------------------------------------------------------------
// MemBinInputStream: Implementation of the input stream interface
// ---------------------------------------------------------------------------
unsigned int BinMemInputStream::readBytes( XMLByte* const toFill
, const unsigned int maxToRead)
{
//
// Figure out how much we can really read. Its the smaller of the
// amount available and the amount asked for.
//
const unsigned int available = (fCapacity - fCurIndex);
if (!available)
return 0;
const unsigned int actualToRead = available < maxToRead ?
available : maxToRead;
memcpy(toFill, &fBuffer[fCurIndex], actualToRead);
fCurIndex += actualToRead;
return actualToRead;
}