mmswadaptation/videorenderer/src/renderertimer.cpp
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalComponent
       
    19 */
       
    20 
       
    21 #include "renderertimer.h"
       
    22 #include "rendererrelay.h"
       
    23 #include "rendererutil.h"
       
    24 
       
    25 /** C++ constructor */
       
    26 CRendererTimer::CRendererTimer(CRendererRelay& aRenderer) 
       
    27 : CTimer(EPriorityHigh), iRenderer(aRenderer)
       
    28 	{
       
    29 	CActiveScheduler::Add(this);
       
    30 	}
       
    31 
       
    32 /** Two-phased constructor. */
       
    33 CRendererTimer* CRendererTimer::NewL(CRendererRelay& aRenderer)
       
    34 	{
       
    35 	CRendererTimer* self = new (ELeave) CRendererTimer(aRenderer);
       
    36 	CleanupStack::PushL(self);
       
    37 	self->ConstructL(); // this call CTimer::ConstructL
       
    38 	CleanupStack::Pop(self);
       
    39 	return self;
       
    40 	}
       
    41 
       
    42 /** Destructor */
       
    43 CRendererTimer::~CRendererTimer()
       
    44 	{
       
    45 	// cancel is called by CTimer destructor
       
    46 	}
       
    47 
       
    48 /** Start the renderer timer */
       
    49 void CRendererTimer::Start(TTimeIntervalMicroSeconds32 aDelay)
       
    50 	{
       
    51 	DEBUGPRINT2(_L("CRendererTimer::Start entered with aDelay=%d"), aDelay.Int());
       
    52 
       
    53 	__ASSERT_DEBUG(iRenderer.UpdateSubmitted() == EFalse, User::Panic(_L("CRT::Start"), KErrArgument));
       
    54 	__ASSERT_DEBUG(IsActive() == EFalse, User::Panic(_L("CRT::Start"), KErrCorrupt));
       
    55 
       
    56 	HighRes(aDelay);
       
    57 	}
       
    58 
       
    59 /** Handle completion */
       
    60 void CRendererTimer::RunL()
       
    61 	{
       
    62 	DEBUGPRINT2(_L("CRendererTimer::RunL entered with status=%d"), iStatus.Int());
       
    63 
       
    64 	if (iStatus == KErrNone)
       
    65 		{
       
    66 		iRenderer.RendererTimerExpired();
       
    67 		}
       
    68 	}
       
    69 
       
    70 
       
    71 /** Two-phased constructor. */
       
    72 CThreadUndertaker* CThreadUndertaker::NewL(RThread& aSubThread)
       
    73 	{
       
    74 	CThreadUndertaker* self;
       
    75 	self = new (ELeave) CThreadUndertaker(aSubThread);
       
    76 	return self;
       
    77 	}
       
    78 
       
    79 /** Constructor for the class. */
       
    80 CThreadUndertaker::CThreadUndertaker(RThread& aSubThread) 
       
    81 : CActive(CActive::EPriorityIdle), iSubThread(aSubThread)
       
    82 	{
       
    83 	CActiveScheduler::Add(this);
       
    84 
       
    85 	iStatus = KRequestPending;
       
    86 	SetActive();
       
    87 
       
    88 	//Logon to the thread so we will receive signals
       
    89 	iSubThread.Logon(iStatus);
       
    90 	}
       
    91 
       
    92 /** Destructor for this class. */
       
    93 CThreadUndertaker::~CThreadUndertaker()
       
    94 	{
       
    95 	Cancel();
       
    96 	}
       
    97 
       
    98 /** This function is triggered when the thread being monitored terminates. */
       
    99 void CThreadUndertaker::RunL()
       
   100 	{
       
   101 	// If the thread being monitored panic, panic this thread.
       
   102 	TInt reason = iSubThread.ExitReason();
       
   103 	TExitCategoryName category = iSubThread.ExitCategory();
       
   104 	User::Panic(category, reason);
       
   105 	}
       
   106 
       
   107 /** Stop monitoring the thread for panics. */
       
   108 void CThreadUndertaker::DoCancel()
       
   109 	{
       
   110 	iSubThread.LogonCancel(iStatus);
       
   111 	}