hxsockcallback.h

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) 1995-2002 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 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef HXSOCKCALLBACK_H
#define HXSOCKCALLBACK_H

#include "hxtypes.h"
#include "hxcom.h"
#include "hxengin.h" // IHXCallback

class SocketCallbackInterface
{
	public:
		virtual STDMETHODIMP HandleCallback(INT32 theCommand, HX_RESULT theError) = 0;
};

class ScheduledSocketCallback : public IHXCallback,
		 	 public IHXInterruptSafe 
{
public:
	SocketCallbackInterface*	m_pSocket;
	CallbackHandle				m_Handle;
	HX_BITFIELD	    			m_bIsCallbackPending : 1;
	HX_BITFIELD	   				m_bInterruptSafe : 1;
	INT32						m_Command;
	HX_RESULT					m_Error;

	ScheduledSocketCallback(SocketCallbackInterface *owner, BOOL interruptSafe);
	/*
	 *	IUnknown methods
	 */
	STDMETHOD(QueryInterface)	(THIS_
					REFIID riid,
					void** ppvObj);

	STDMETHOD_(ULONG32,AddRef)	(THIS);

	STDMETHOD_(ULONG32,Release)	(THIS);

	/*
	 *	IHXCallback methods
	 */
	STDMETHOD(Func)		(THIS);

		/*
	 	 *	IHXInterruptSafe methods
	 	 */
		STDMETHOD_(BOOL,IsInterruptSafe)	(THIS);

	STDMETHOD_(BOOL,ScheduleCallback)	(THIS_
					INT32 				theCommand,
					IHXScheduler*		theScheduler,
					ULONG32 			theTime,
					HX_RESULT			theError = HXR_OK);
					
	INT32 GetCommand(void) { return m_Command; }
	INT32 GetError(void) { return m_Error; }
	
	void  Unschedule(IHXScheduler*		theScheduler);
	
	protected:
		~ScheduledSocketCallback();
		PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME

	LONG32		m_lRefCount;
	};

#endif /* HXSOCKCALLBACK_H */