graphicshwdrivers/surfacemgr/test/src/tsmgmultprocessshared.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:47:50 +0200
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// surface manager API
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// 
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//
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#include "tsmgmultprocessshared.h"
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#include <e32def_private.h>
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/**
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Creates a wrapper object for a shared chunk between processes
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*/
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CChunkWrapper* CChunkWrapper::CreateL(const TDesC& aName, TInt aSize, TInt aMaxSize)
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	{
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	CChunkWrapper* self = new(ELeave) CChunkWrapper();
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	CleanupStack::PushL(self);
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	self->CreateConstructL(aName, aSize, aMaxSize);
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	CleanupStack::Pop(self);
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	return self;
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	}
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/**
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Second phase creation of the shared chunk wrapper
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*/
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void CChunkWrapper::CreateConstructL(const TDesC& aName, TInt aSize, TInt aMaxSize)
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	{
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	User::LeaveIfError(iChunk.CreateGlobal(aName, aSize, aMaxSize));
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	}
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/**
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Opens an alerady created wrapper for a chunk that we share between processes
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*/
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CChunkWrapper* CChunkWrapper::OpenL(const TDesC& aName, TBool aIsReadOnly)
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	{
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	CChunkWrapper* self = new(ELeave) CChunkWrapper();
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	CleanupStack::PushL(self);
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	self->OpenConstructL(aName, aIsReadOnly);
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	CleanupStack::Pop(self);
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	return self;
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	}
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/**
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Second phase opening a previously created chunk
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*/	
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void CChunkWrapper::OpenConstructL(const TDesC& aName, TBool aIsReadOnly)
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	{
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	User::LeaveIfError(iChunk.OpenGlobal(aName, aIsReadOnly));
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	}
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/**
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Destructor
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*/	
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CChunkWrapper::~CChunkWrapper()
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	{
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	iChunk.Close();
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	}
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/**
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Constructor
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*/	
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CChunkWrapper::CChunkWrapper()
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	{
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	}
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/**
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Sets the results (bitmapped into a TInt) of all the second process tests
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Second process results always reside in the first sizeof(TInt) bytes of the chunk
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*/
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void CChunkWrapper::SetSecondProcessResults(TInt aResult)
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	{
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	*intPtr = aResult;
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	}
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/**
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Gets the results (bitmapped into a TInt) of all the second process tests
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Second process results always reside in the first sizeof(TInt) bytes of the chunk
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*/
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TInt CChunkWrapper::GetSecondProcessResults()
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	{
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	return *intPtr; 
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	}
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/**
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Sets the results (bitmapped into a TInt) of all the third process tests
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Third process results always reside in the second sizeof(TInt) bytes of the chunk
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*/
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void CChunkWrapper::SetThirdProcessResults(TInt aResult)
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	{
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	intPtr++; // Offset to second TInt in the chunk
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	*intPtr = aResult;
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	}
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/**
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Gets the results (bitmapped into a TInt) of all the second process tests
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Second process results always reside in the first sizeof(TInt) bytes of the chunk
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*/
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TInt CChunkWrapper::GetThirdProcessResults()
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	{
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	intPtr++; // Offset to second TInt in the chunk
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	return *intPtr; 
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	}
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   126
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/**
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Puts the surfaceId of a surface on the shared chunk
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*/
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void CChunkWrapper::SetId(const TSurfaceId& aId)
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	{
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	intPtr += 2; // Offset past first two TInts in the chunk
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	TUint32* uintPtr = reinterpret_cast<TUint32*>(intPtr);
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	for(TInt ii = 0; ii < 4; ++ii, ++uintPtr)
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		{
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		*uintPtr = aId.iInternal[ii];
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		}
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	}
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/**
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Reads the surfaceId of a surface off the shared chunk
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*/	
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TSurfaceId CChunkWrapper::GetId()
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	{
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	TSurfaceId id;
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	TUint8* ptr = iChunk.Base();
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	TInt* intPtr = reinterpret_cast<TInt*>(ptr);
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	intPtr += 2; // Offset past first two TInts in the chunk
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	TUint32* uintPtr = reinterpret_cast<TUint32*>(intPtr);
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	for(TInt ii = 0; ii < 4; ++ii, ++uintPtr)
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		{
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		id.iInternal[ii] = *uintPtr;
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		}
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	return id;
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	}	
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CTestDriver::CTestDriver()
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	{
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	iTestResult = 0;
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	}
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void CTestDriver::ConstructL()
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	{
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	User::LeaveIfError(iSurfaceManager.Open());
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	TRAPD(err,iChunkWrapper =  CChunkWrapper::OpenL(KSharedChunkName, ETrue));
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	if (err == KErrNotFound) //the chunk wrapper is not yet created, cant be opened
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		{
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		iChunkWrapper =CChunkWrapper::CreateL(KSharedChunkName, KSharedChunkSize, KSharedChunkSize);
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		}
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	}
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CTestDriver::~CTestDriver()
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	{
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	// Cleanup 
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	iSurfaceManager.Close();
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	delete iChunkWrapper;
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	}