//
// The developer of the original code and/or files is Tripwire, Inc.
// Portions created by Tripwire, Inc. are copyright (C) 2000 Tripwire,
// Inc. Tripwire is a registered trademark of Tripwire, Inc.  All rights
// reserved.
// 
// This program is free software.  The contents of this file are subject
// to the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2 of the License, or (at your
// option) any later version.  You may redistribute it and/or modify it
// only in compliance with the GNU General Public License.
// 
// This program is distributed in the hope that it will be useful.
// However, this program is distributed AS-IS WITHOUT ANY
// WARRANTY; INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
// FOR A PARTICULAR PURPOSE.  Please see the GNU General Public License
// for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 
// Nothing in the GNU General Public License or any other license to use
// the code or files shall permit you to use Tripwire's trademarks,
// service marks, or other intellectual property without Tripwire's
// prior written consent.
// 
// If you have any questions, please contact Tripwire, Inc. at either
// info@tripwire.org or www.tripwire.org.
//
// serilaizerutil.cpp
#include "stdcore.h"
#include "serializerutil.h"
#include "archive.h"
#include "serializer.h"

namespace {
template<class FROM, class TO>
int64 CopyImpl(TO* pTo, FROM* pFrom, int64 amt)
{
	enum { BUF_SIZE = 8192 };
	int8	buf[BUF_SIZE];
	int64	amtLeft = amt;

	while(amtLeft > 0)
	{
        // NOTE: We use int's here rather than int64 because iSerializer and cArchive
        // only take int's as their size parameter - dmb
		int amtToRead = amtLeft > BUF_SIZE ? BUF_SIZE : (int)amtLeft;
		int amtRead = pFrom->ReadBlob(buf, amtToRead );
		amtLeft -= amtRead;
		pTo->WriteBlob(buf, amtRead);
		if(amtRead < amtToRead)
			break;
	}

	// return the amount copied ...
	return (amt - amtLeft);
}
}


int64 cSerializerUtil::Copy( iSerializer* pDest, cArchive* pSrc, int64 amt )
{
	return CopyImpl( pDest, pSrc, amt );
}

int64 cSerializerUtil::Copy( cArchive* pDest, iSerializer* pSrc, int64 amt )
{
	return CopyImpl( pDest, pSrc, amt );
}