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// Copyright (c) 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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// streammap.cpp: creates and maintaines the association between native stream and a TSurfaceId
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//
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//
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#include "streammap.h"
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#include <graphics/updateserverprovider.h>
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#include <graphics/surfacemanager.h>
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#include <e32property.h>
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#include <e32std.h>
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#include <e32cmn.h>
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#include "openwfcpanic.h"
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#include "surfacestream.h"
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#include "contentupdateproxy.h"
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static const TInt KOpenWfcInteropCleanupKey = 0x10286FC5;
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COpenWfcStreamMap* COpenWfcStreamMap::pInstance = NULL;
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TUint32 COpenWfcStreamMap::HashFunction(const TSurfaceId& aHashKey)
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{
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TPckgC<TSurfaceId> pckg(aHashKey);
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return DefaultHash::Des8(pckg);
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}
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EXPORT_C COpenWfcStreamMap& COpenWfcStreamMap::InstanceL()
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{
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// would have been nice to try to protect this area with a mutex, however,
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// the preliminary analyses show we can guarantee the safe creation of the mutex
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// by invoking InstanceL() from the place the CGce instances are created
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// If necessary, in future, the code can be expanded by using a named mutex.
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if (!pInstance)
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{
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COpenWfcStreamMap* newInstance = new(ELeave)COpenWfcStreamMap();
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CleanupStack::PushL(newInstance);
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newInstance->ConstructL();
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CleanupStack::Pop(newInstance);
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pInstance=newInstance;
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}
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return *pInstance;
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}
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CSurfaceStream* COpenWfcStreamMap::Find(const TSurfaceId& aSurfaceId)
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{
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Guard g(iMutex);
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CSurfaceStream** ns = iMap.Find(aSurfaceId);
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// used if statement to ease debug help
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if (ns)
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{
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(*ns)->AddReference();
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return *ns;
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}
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return NULL;
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}
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CSurfaceStream* COpenWfcStreamMap::AcquireL(const TSurfaceId& aSurfaceId)
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{
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Guard* pGuard = new(ELeave) Guard(iMutex);
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User::LeaveIfNull(pGuard);
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CleanupDeletePushL(pGuard);
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CSurfaceStream** ns = NULL;
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CSurfaceStream* ret = NULL;
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ns = iMap.Find(aSurfaceId);
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if (ns)
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{
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WFCI_ASSERT_DEBUG((*ns), EOwfPanicInvalidHasMap); // should have never happened
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ret = *ns;
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}
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else
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{
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ret = CSurfaceStream::NewLC(aSurfaceId);
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User::LeaveIfError(iMap.Insert(aSurfaceId, ret));
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CleanupStack::Pop();
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}
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ret->AddReference();
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CleanupStack::PopAndDestroy(pGuard);
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return ret;
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}
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EXPORT_C TInt COpenWfcStreamMap::Count()
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{
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Guard g(iMutex);
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TInt count = iMap.Count();
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return count;
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}
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EXPORT_C RSurfaceManager& COpenWfcStreamMap::SurfaceManager()
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{
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WFCI_ASSERT_DEBUG(iSurfaceManager, EOwfPanicInvalidHasMap);
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return *iSurfaceManager;
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}
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TInt COpenWfcStreamMap::LockDestroy(CSurfaceStream* aStream)
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{
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Guard g(iMutex);
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TInt ret = KErrNone;
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if (aStream)
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{
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if (aStream->RemainingReference())
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{
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const TSurfaceId& surfaceId = aStream->SurfaceId();
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CSurfaceStream** ns = iMap.Find(surfaceId);
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// used if statement to ease debug help
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if (ns && ((*ns) == aStream))
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{
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TInt ret = iMap.Remove(surfaceId);
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delete aStream;
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}
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else
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{
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ret = KErrNotFound;
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}
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}
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else // RemainingReference
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{
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ret = KErrInUse;
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}
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}
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else // aStream
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{
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ret = KErrArgument;
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}
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return ret;
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}
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COpenWfcStreamMap::COpenWfcStreamMap():
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iMap(THashFunction32<TSurfaceId>(COpenWfcStreamMap::HashFunction), TIdentityRelation<TSurfaceId>()),
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iSurfaceManager(NULL),
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iRegisteredUpdaters()
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{
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}
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TInt COpenWfcStreamMap::DeleteSingleton(TAny* aData)
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/**
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* aData A pointer to the heap registered for this callback
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*/
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{
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// Blank the property for this callback
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RThread t;
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RProperty prop;
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TCallBack cb(NULL, NULL);
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TPckgC<TCallBack> cbPckg(cb);
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prop.Set(TUid::Uid(t.SecureId().iId), KOpenWfcInteropCleanupKey, cbPckg);
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prop.Close();
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t.Close();
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if (aData == &User::Heap())
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{
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delete pInstance;
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pInstance = NULL;
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return ETrue;
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}
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return EFalse;
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}
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COpenWfcStreamMap::~COpenWfcStreamMap()
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{
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iMutex.Wait();
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{
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THashMapIter<TSurfaceId, CSurfaceStream*> iter(iMap);
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const TSurfaceId* nextKey = iter.NextKey();
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CSurfaceStream* const* ns = NULL;
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while (nextKey)
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{
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ns = iter.CurrentValue();
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if (ns && *ns)
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{
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delete (*ns);
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}
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nextKey = iter.NextKey();
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}
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}
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iMap.Close();
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if (iSurfaceManager)
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{
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iSurfaceManager->Close();
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delete iSurfaceManager;
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iSurfaceManager = NULL;
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}
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iMutex.Signal();
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iMutex.Close();
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{
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THashMapIter<TInt32, CExtensionContainer*> iter(iRegisteredUpdaters);
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const TInt32* nextKey = iter.NextKey();
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CExtensionContainer* const* extensionContainer = NULL;
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while (nextKey)
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{
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extensionContainer = iter.CurrentValue();
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if (extensionContainer && *extensionContainer)
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{
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delete (*extensionContainer);
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}
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nextKey = iter.NextKey();
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}
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}
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iRegisteredUpdaters.Close();
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}
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void COpenWfcStreamMap::ConstructL()
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{
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User::LeaveIfError(iMutex.CreateLocal());
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iMap.Reserve(iInitialSize);
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TSurfaceId surface = TSurfaceId::CreateNullId();
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User::LeaveIfError(iMap.Insert(surface, NULL));
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iSurfaceManager = new(ELeave) RSurfaceManager();
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User::LeaveIfError(iSurfaceManager->Open());
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RProcess process;
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TUidType uidType = process.Type();
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const TInt32 KWservUid = 268450592;
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const TUid& uid1 = uidType[2];
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if(uid1.iUid == KWservUid) //only wserv process can start the server
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{
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StartSurfaceUpdateServer(iSurfUpdateServ);
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}
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// Register the cleanup function in a property defined by WServ
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RThread t;
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TUid category = {t.SecureId().iId};
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RProperty prop;
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TCallBack cb(DeleteSingleton, &User::Heap());
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TPckgC<TCallBack> cbPckg(cb);
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// If the property cannot be set the assumption is that the cleanup is not needed
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(void) prop.Set(category, KOpenWfcInteropCleanupKey, cbPckg);
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prop.Close();
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t.Close();
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// StreamMap is constructed from main thread
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SetMainHeap();
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}
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COpenWfcStreamMap::Guard::Guard(RFastLock& aLock):
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iLock(aLock)
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{
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iLock.Wait();
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}
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COpenWfcStreamMap::Guard::~Guard()
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{
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iLock.Signal();
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}
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EXPORT_C RHeap* COpenWfcStreamMap::GetMainHeap()
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{
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return iMainHeap;
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}
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void COpenWfcStreamMap::SetMainHeap()
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{
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iMainHeap = &User::Heap();
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}
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TInt COpenWfcStreamMap::RegisterScreenNotifications(TInt aScreenNum, TInt aPriority,TInt aInternalVersion)
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{
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COpenWfcStreamMap* pInstance = NULL;
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TRAPD(err,pInstance = &COpenWfcStreamMap::InstanceL());
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if (err != KErrNone)
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{
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return err;
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}
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if (iRegisteredUpdaters.Find(aScreenNum)!= NULL)
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{
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return KErrAlreadyExists;
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}
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CExtensionContainer* updateProxy = NULL;
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TRAP(err, updateProxy = CContentUpdateProxy::NewL(aScreenNum, pInstance,aInternalVersion,aPriority));
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if (err)
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{
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return err;
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}
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if ((err = iRegisteredUpdaters.Insert(aScreenNum, updateProxy)) != KErrNone)
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{
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delete updateProxy;
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return err;
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}
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if (!pInstance->iSurfUpdateServ)
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{
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return KErrNotReady; //For testing purposes the backend proxy still exists.
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}
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err = iSurfUpdateServ->Register(aScreenNum, updateProxy, aPriority);
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if (err!=KErrNone)
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{
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delete updateProxy;
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iRegisteredUpdaters.Remove(aScreenNum);
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}
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return err;
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}
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CExtensionContainer* COpenWfcStreamMap::RegisteredScreenNotifications(TInt aScreenNum)
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{
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return *iRegisteredUpdaters.Find(aScreenNum);
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}
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TInt COpenWfcStreamMap::UnregisterScreenNotifications(TInt aScreenNum)
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{
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TInt err = KErrNone;
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CExtensionContainer** backend = iRegisteredUpdaters.Find(aScreenNum);
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if (backend)
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{
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delete *backend;
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iRegisteredUpdaters.Remove(aScreenNum);
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if (iSurfUpdateServ)
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{
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err = iSurfUpdateServ->Register(aScreenNum, NULL, 0);
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}
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else
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{
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err = KErrNotReady;
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}
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}
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else
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{
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err = KErrNotFound;
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}
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return err;
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}
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