symbian_thread_at_imp.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 
 * 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): 
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 * ***** END LICENSE BLOCK ***** */ 

#include "symbian_thread_at_imp.h"
#include "hxmsgs.h"   //for HXMSG_ASYNC_TIMER message.
#include "hxtick.h" // GetTickCount()

HXSymbianThreadAsyncTimer::HXSymbianThreadAsyncTimer() :
    m_pMessagePump(0),
    m_destroySelf(false)
{}

HXSymbianThreadAsyncTimer::~HXSymbianThreadAsyncTimer()
{
    HX_DELETE( m_pMessagePump );
}

void HXSymbianThreadAsyncTimer::DoExtraInit()
{
    m_pMessagePump = new HXSymbianThread;

    m_pMessagePump->CreateThread( _ActualMessagePump, (void*)this );
}

ULONG32 HXSymbianThreadAsyncTimer::GetID()
{
    ULONG32 ulTmp=0;

    m_pMessagePump->GetThreadId(ulTmp);

    return ulTmp;
}
void HXSymbianThreadAsyncTimer::Destroy()
{
    if (m_pMessagePump)
    {
	//Tell the message pump to quit.
	HXThreadMessage msgQuit(HXMSG_QUIT, NULL, NULL);
	m_pMessagePump->PostMessage( &msgQuit );
	

	ULONG32 ulThreadID = 0;
	if ((m_pMessagePump->GetThreadId(ulThreadID) == HXR_OK) &&
	    (ulThreadID == m_pMessagePump->GetCurrentThreadID()))
	{
	    // The timer is be destroyed from the timer thread.
	    // Signal that delayed destruction needs to happen
	    m_destroySelf = true;
	}
	else
	{	    
	    // Wait for the thread to die
	    m_pMessagePump->Exit(0);
	    delete this;
	}

    }
}

void* HXSymbianThreadAsyncTimer::_ActualMessagePump(void* pArg)
{
    HXSymbianThreadAsyncTimer* pTimer = (HXSymbianThreadAsyncTimer*)pArg;

    while(1)
    {
	HXThreadMessage msgTmp;
        if( HXR_OK == pTimer->m_pMessagePump->PeekMessage(&msgTmp))
        {
            //Got a message. If it is HXMSG_QUIT get our of here.
            if( msgTmp.m_ulMessage == HXMSG_QUIT )
            {
                break;
            }
        }

        User::After(pTimer->GetTimeoutPeriod() * 1000);

	pTimer->OnTimeout();
    }

    // Check for delayed destruction
    if (pTimer->m_destroySelf)
    {
	HX_DELETE(pTimer);
    }
    
    return NULL;
}