hxsmutil.cpp

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxsmutil.cpp,v 1.1.32.1 2004/07/09 02:05:30 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */
#include "hxsmutil.h"

#include "hxbuffer.h" /* CHXBuffer */
#include "chxpckts.h"  /* CHXHeader */
#include "safestring.h" /* SafeSprintf */

static 
HX_RESULT AddVarBuffer(IHXValues* pVars, const char* pVarName)
{
    HX_RESULT res = HXR_OUTOFMEMORY;

    IHXBuffer* pBuf = new CHXBuffer();

    if (pBuf)
    {
	pBuf->AddRef();
	pBuf->SetSize(128);
	res = pVars->SetPropertyCString(pVarName,  pBuf);
	HX_RELEASE(pBuf);
    }

    return res;
}

HX_RESULT HXSMUpdateSubscriptionVars(REF(IHXValues*) pVars,
				     UINT32 ulBandwidth,
				     BOOL bLoss,
				     float loss)
{
    HX_RESULT res = HXR_OK;

    if (!pVars)
    {
	pVars = new CHXHeader();
	if (pVars)
	{
	    pVars->AddRef();

	    res = AddVarBuffer(pVars, "Bandwidth");

	    if (HXR_OK == res && bLoss)
	    {
		res = AddVarBuffer(pVars, "PacketLoss");
	    }
	}
	else
	{
	    res = HXR_OUTOFMEMORY;
	}
    }

    if (HXR_OK == res)
    {
	IHXBuffer* pBandwidthBuffer = NULL;
	
	res = pVars->GetPropertyCString("Bandwidth", pBandwidthBuffer);

        if (pBandwidthBuffer)
	{
	    SafeSprintf ((char *)pBandwidthBuffer->GetBuffer(), 
			 pBandwidthBuffer->GetSize(), "%ld", ulBandwidth);

	    HX_RELEASE(pBandwidthBuffer);
	}

	if (HXR_OK == res && bLoss)
	{
	    IHXBuffer* pLossBuffer = NULL;

	    res = pVars->GetPropertyCString("PacketLoss", pLossBuffer);

	    if (pLossBuffer)
	    {
		SafeSprintf ((char *)pLossBuffer->GetBuffer(), 
			     pLossBuffer->GetSize(), "%0.3f", loss);
		HX_RELEASE(pLossBuffer);
	    }
	}
    }

    return res;
}