process_events.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) 1995-2002 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 
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 * 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. 
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 * This file, and the files included with this file, is distributed and made 
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 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
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 * ***** END LICENSE BLOCK ***** */ 

#include "platform/symbian/process_events.h"

#include <e32base.h>

class HXSymbianEventHandler : public CActive
{
public:
    HXSymbianEventHandler();
    ~HXSymbianEventHandler();

    void DoEvents(int timeoutMs);

    void RunL();
    void DoCancel();

private:
    RTimer m_timer;
    bool m_done;
};

HXSymbianEventHandler::HXSymbianEventHandler() :
    CActive(EPriorityStandard),
    m_done(false)
{
    CActiveScheduler::Add(this);
}

HXSymbianEventHandler::~HXSymbianEventHandler()
{
    Cancel();
    m_timer.Close();
}

void HXSymbianEventHandler::DoEvents(int timeoutMs)
{
    TInt err = m_timer.CreateLocal();
    
    if( KErrNone == err )
    {
	m_timer.After(iStatus, timeoutMs * 1000);
	SetActive();	

	m_done = false;

	while(!m_done)
	{
	    User::WaitForAnyRequest();
	    TInt aError;
	    CActiveScheduler::RunIfReady(aError, CActive::EPriorityIdle);
	}
    }
}

void HXSymbianEventHandler::RunL()
{
    m_done = true;
}

void HXSymbianEventHandler::DoCancel()
{
    m_timer.Cancel();
}

void SymbianProcessEvents(int timeoutMs)
{
    HXSymbianEventHandler* pEH = new HXSymbianEventHandler;

    if (pEH)
    {
	pEH->DoEvents(timeoutMs);

	delete pEH;
    }
}