hxcomm.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxcomm.h,v 1.1.1.1.50.3 2004/07/09 01:45:08 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 _HXCOMM_H_
#define _HXCOMM_H_

#include "hxengin.h" /* For HXTimeval */
#include "hxccf.h" /* For IHXCommonClassFactory. Formerly declared in this file. */

/*
 * Forward declarations of some interfaces defined here-in.
 */

typedef _INTERFACE	IHXStatistics			IHXStatistics;
typedef _INTERFACE	IHXRegistryID			IHXRegistryID;
typedef _INTERFACE	IHXServerFork			IHXServerFork;
typedef _INTERFACE	IHXServerControl		IHXServerControl;
typedef _INTERFACE	IHXReconfigServerResponse	IHXReconfigServerResponse;
typedef _INTERFACE	IHXBuffer			IHXBuffer;
typedef _INTERFACE	IHXWantServerReconfigNotification
						IHXWantServerReconfigNotification;  
typedef _INTERFACE	IHXFastAlloc			IHXFastAlloc;


/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXStatistics
 * 
 *  Purpose:
 * 
 *	This interface allows update of the client statistics.
 * 
 *  IID_IHXStatistics:
 * 
 *	{00000001-0901-11d1-8B06-00A024406D59}
 * 
 */
DEFINE_GUID(IID_IHXStatistics, 0x00000001, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
	    0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXStatistics

DECLARE_INTERFACE_(IHXStatistics, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;

    /*
     *	IHXStatistics methods
     */

    /************************************************************************
     *	Method:
     *	    IHXStatistics::Init
     *	Purpose:
     *	    Pass registry ID to the caller
     *
     */
    STDMETHOD(InitializeStatistics)	(THIS_
					UINT32	/*IN*/  ulRegistryID) PURE;

    /************************************************************************
     *	Method:
     *	    IHXStatistics::Update
     *	Purpose:
     *	    Notify the client to update its statistics stored in the registry
     *
     */
    STDMETHOD(UpdateStatistics)		(THIS) PURE;
};


/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXRegistryID
 * 
 *  Purpose:
 * 
 *	This interface is implemented by IHXPlayer, IHXStreamSource,
 *	and IHXStream.  It allows the user to get the registry Base ID,
 *	for an object that you have a pointer to.
 * 
 *  IID_IHXRegistryID:
 * 
 *	{00000002-0901-11d1-8B06-00A024406D59}
 * 
 */
DEFINE_GUID(IID_IHXRegistryID, 0x00000002, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
	    0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXRegistryID

DECLARE_INTERFACE_(IHXRegistryID, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;

    /*
     *	IHXRegistryID methods
     */

    /************************************************************************
     *	Method:
     *	    IHXRegistryID::GetID
     *	Purpose:
     *	    Get the registry ID of the object.
     *
     */
    STDMETHOD(GetID)	(THIS_
			REF(UINT32)	/*OUT*/  ulRegistryID) PURE;
};

/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXServerFork
 * 
 *  Purpose:
 * 
 *	This interface is implemented by the server context on Unix
 *	platforms.  This interface allows your plugin to fork off a
 *	process.  Note that the process that is forked off cannot use
 *	any RMA APIs.  The fork() system call is prohibited from within
 *	a RMA plugin.
 *
 *  IID_IHXServerFork:
 * 
 *	{00000003-0901-11d1-8B06-00A024406D59}
 * 
 */
DEFINE_GUID(IID_IHXServerFork, 0x00000003, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
	    0xa0, 0x24, 0x40, 0x6d, 0x59);

#undef  INTERFACE
#define INTERFACE   IHXServerFork

DECLARE_INTERFACE_(IHXServerFork, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)		(THIS) PURE;

    STDMETHOD_(ULONG32,Release)		(THIS) PURE;

    /*
     *	IHXServerFork methods
     */

    /************************************************************************
     *	Method:
     *	    IHXServerFork::Fork
     *	Purpose:
     *	    Fork off a child process.  The child process cannot use any RMA
     *	    APIs.  Upon successful completion, Fork returns 0 to the child
     *	    process and the PID of the child to the parent.  A return value
     *	    of -1 indicates an error.
     *
     *	    Note:  The child process should *NOT* Release any interfaces.
     *		The cleanup of the IHXServerFork() interface and other
     *		RMA interfaces is done by the parent.
     *
     */
    STDMETHOD_(INT32, Fork)	(THIS) PURE;
};

/*
 * 
 *  Interface:
 *
 *	IHXServerControl
 *
 *  Purpose:
 *
 *	This inteface provides access to the RealMedia server's controls
 *      for shutting down (for now).
 *
 *	Note:  This registry is not related to the Windows system registry.
 *
 *  IID_IHXServerControl:
 *
 *	{00000004-0901-11d1-8B06-00A024406D59}
 *
 */
DEFINE_GUID(IID_IHXServerControl, 0x00000004, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
            0xa0, 0x24, 0x40, 0x6d, 0x59);

#define CLSID_IHXServerControl	IID_IHXServerControl

#undef  INTERFACE
#define INTERFACE   IHXServerControl

DECLARE_INTERFACE_(IHXServerControl, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;

    STDMETHOD_(ULONG32,Release)	(THIS) PURE;

    /*
     *	IHXServerControl methods
     */

    /************************************************************************
     *  Method:
     *      IHXServerControl::ShutdownServer
     *  Purpose:
     *      Shutdown the server.
     */
    STDMETHOD(ShutdownServer)		(THIS_
					UINT32 status) PURE;
};

/*
 * 
 *  Interface:
 *
 *	IHXServerControl2
 *
 *  Purpose:
 *
 *	Interface for extended server control methods.
 *
 *
 *  IID_IHXServerControl2:
 *
 *	{00000005-0901-11d1-8B06-00A024406D59}
 *
 */
DEFINE_GUID(IID_IHXServerControl2, 0x00000005, 0x901, 0x11d1, 0x8b, 0x6, 0x0, 
            0xa0, 0x24, 0x40, 0x6d, 0x59);


#undef  INTERFACE
#define INTERFACE   IHXServerControl2

DECLARE_INTERFACE_(IHXServerControl2, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;

    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;

    STDMETHOD_(ULONG32,Release)	(THIS) PURE;

    /*
     *	IHXServerControl2 methods
     */