hxopwaveudpsock.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxopwaveudpsock.h,v 1.3.30.1 2004/07/09 02:08:52 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 HXOPWAVEUDPSOCK_H
#define HXOPWAVEUDPSOCK_H

#include "hxtypes.h"
#include "hxcom.h"
#include "hxengin.h"
#include "hxccf.h"
#include "hxslist.h"

#include "hx_opsocket.h"

class HXOpwaveUDPWriter;
class HXOpwaveUDPReader;

class HXOpwaveUDPSocket : public IHXUDPSocket,
						  public IHXSetSocketOption,
						  public OpSocket
                                                 

{
public:

    HXOpwaveUDPSocket(IHXCommonClassFactory* pCCF);
    ~HXOpwaveUDPSocket();

    /*
     *  IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
									REFIID riid,
									void** ppvObj);

    STDMETHOD_(ULONG32,AddRef)		(THIS);

    STDMETHOD_(ULONG32,Release)		(THIS);



    /*
     *	IHXUDPSocket methods
     *
     *  Network addresses and ports are in native byte order
     */
    STDMETHOD(Init)		(THIS_
						ULONG32			ulAddr,
						UINT16			nPort,
						IHXUDPResponse*	pUDPResponse);

    STDMETHOD(Bind)		(THIS_
						UINT32			    ulLocalAddr,
						UINT16 			    nPort);

    STDMETHOD(Read)		(THIS_
						UINT16			Size);


    STDMETHOD(Write)		(THIS_
							IHXBuffer*		pBuffer);


    STDMETHOD(WriteTo)		(THIS_
		    				ULONG32			ulAddr,
							UINT16			nPort,
							IHXBuffer*		pBuffer);

    STDMETHOD(GetLocalPort)	(THIS_
		    				REF(UINT16)		port);

    STDMETHOD(JoinMulticastGroup)	(THIS_
			    					ULONG32	    ulMulticastAddr,
			    					ULONG32	    ulInterfaceAddr);

    STDMETHOD(LeaveMulticastGroup)	(THIS_
			    					ULONG32	    ulMulticastAddr,
				   					ULONG32	    ulInterfaceAddr);

    /*
     *	IHXSetSocketOption methods
     */
    STDMETHOD(SetOption)		(THIS_ 
								 HX_SOCKET_OPTION option,
								 UINT32 ulValue);

	/*
	 *  Override partial OpSocket methods for handling event sink methods
	 */
	virtual void onReadable(OpSocketEvent *pSocketEvent);
    virtual void onWritable(OpSocketEvent *pSocketEvent);
	virtual void onException(OpSocketEvent *pSocketEvent);

protected:

    void OnWriteDone(HX_RESULT status);
    HX_RESULT DoWrite();
    HX_RESULT DoRead();

private:    

    void CloseSocket(HX_RESULT status);

    enum UDPState {udpNotInitialized,
		   udpInitialized,
		   udpBound};

    ULONG32 m_lRefCount;

    IHXUDPResponse* m_pResponse;

    IHXCommonClassFactory* m_pCCF;
    UDPState m_state;

    UINT32 m_ulBytesLeftToWrite;
    IHXBuffer* m_pWriteBuffer;
    IHXBuffer* m_pReadBuffer;
    UINT32 m_ulReadSize;
    UINT16 m_nLocalPort;
    UINT32 m_ulLocalAddr;
    UINT32 m_ulRemoteAddr;
    UINT16 m_nRemotePort;
    BOOL m_bWritable;
    BOOL m_bReadable;

    CHXSimpleList m_writeList;
};



#endif /* HXOPWAVEUDPSOCK_H */