hxsymbiansockhlp.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2003 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 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (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.  
 *  
 * 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 
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 * Contributor(s): 
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 * ***** END LICENSE BLOCK ***** */ 

#include "hxsymbiansockhlp.h"
#include "hlxclib/string.h"

HX_RESULT HXSymbianSocketHelper::ResizeOrCreate(IHXCommonClassFactory* pCCF,
                                                UINT32 ulSize,
                                                REF(IHXBuffer*) pBuffer)
{
    HX_RESULT res = HXR_FAILED;

    if (pBuffer)
    {
        // We have a buffer so just resize it
        res = pBuffer->SetSize(ulSize);
    }
    else
    {
        // We don't have a buffer so create one
        res = CreateBuffer(pCCF, ulSize, pBuffer);
    }

    return res;
}

HX_RESULT HXSymbianSocketHelper::CopyOrTransfer(IHXCommonClassFactory* pCCF,
                                                UINT32 ulSize,
                                                REF(IHXBuffer*) pSrcBuf,
                                                REF(IHXBuffer*) pDestBuf)
{
    HX_RESULT res = HXR_FAILED;

    if (HXR_OK == CreateBuffer(pCCF, ulSize, pDestBuf))
    {
        // Copy the data into the new buffer
        memcpy(pDestBuf->GetBuffer(), pSrcBuf->GetBuffer(), ulSize);
    }
    else if (pSrcBuf)
    {
        // We couldn't create a new buffer. Use the buffer we have
        
        // Transfer ownership
        pDestBuf = pSrcBuf;
        pSrcBuf = NULL;

        if (pDestBuf)
        {
            // Set the size
            pDestBuf->SetSize(ulSize);
        }

        res = HXR_OK;
    }

    return res;
}

HX_RESULT HXSymbianSocketHelper::CreateBuffer(IHXCommonClassFactory* pCCF,
                                              UINT32 ulSize,
                                              REF(IHXBuffer*) pBuffer)
{
    HX_RESULT res = HXR_FAILED;

    if (pCCF)
    {
        res = pCCF->CreateInstance(IID_IHXBuffer, (void**)&pBuffer);

        if (HXR_OK == res)
        {
            res = pBuffer->SetSize(ulSize);

            if (HXR_OK != res)
            {
                HX_RELEASE(pBuffer);
            }
        }
    }

    return res;
}