netchck.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: netchck.h,v 1.1.38.1 2004/07/09 02:07:46 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 ***** */


#ifndef _NETCHCK_H
#define _NETCHCK_H

#include "xnetchck.h"
#include "hxengin.h"




class CHXNetCheck : public XHXNetCheck, public IHXTCPResponse
{
public:
    CHXNetCheck(UINT32 timeout = 30000);
    virtual ~CHXNetCheck();

    BOOL FInternetAvailable(BOOL fPing = FALSE,BOOL fProxy=FALSE);
    BOOL Ping(const char *szHostName, UINT16 nPort, BOOL fAsynchronous);
    BOOL SmartPing();
    void SleepWell(ULONG32 ulInterval);
    
    HX_RESULT Init(IUnknown *pContext);

    /*
     *  IUnknown methods
     */
    STDMETHOD(QueryInterface) (THIS_
                               REFIID riid,
                               void** ppvObj);
    STDMETHOD_(ULONG32,AddRef) (THIS);
    STDMETHOD_(ULONG32,Release) (THIS);

    /*
     *  IHXTCPResponse methods
     */

    /************************************************************************
     *  Method:
     *      IHXTCPResponse::ConnectDone
     *  Purpose:
     *      A Connect operation has been completed or an error has occurred.
     */
    STDMETHOD(ConnectDone) (THIS_
                            HX_RESULT status);

    /************************************************************************
     *  Method:
     *      IHXTCPResponse::ReadDone
     *  Purpose:
     *      A Read operation has been completed or an error has occurred.
     *      The data is returned in the IHXBuffer.
     */
    STDMETHOD(ReadDone) (THIS_
                         HX_RESULT status,
                         IHXBuffer* pBuffer);
    
    /************************************************************************
     *  Method:
     *      IHXTCPResponse::WriteReady
     *  Purpose:
     *      This is the response method for WantWrite.
     *      If HX_RESULT is ok, then the TCP channel is ok to Write to.
     */
    STDMETHOD(WriteReady) (THIS_
                           HX_RESULT status);
    
    /************************************************************************
     *  Method:
     *      IHXTCPResponse::Closed
     *  Purpose:
     *      This method is called to inform you that the TCP channel has
     *      been closed by the peer or closed due to error.
     */
    STDMETHOD(Closed) (THIS_
                       HX_RESULT status);
    

protected:


    IHXNetworkServices* m_phxNetServices;
    IHXTCPSocket*       m_phxTCPSocket;
    LONG32              m_lRefCount;
    IUnknown*           m_pContext;
    BOOL                m_fConnected;
    BOOL                m_fFailed;

};

#endif //_NETCHCK_H