diff -r a2efdd544abf -r b47902b73a93 datasourceadaptation/gpsdatasourceadaptation/src/EPos_CPositionerRegistry.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/datasourceadaptation/gpsdatasourceadaptation/src/EPos_CPositionerRegistry.cpp	Fri Jun 04 10:34:15 2010 +0100
@@ -0,0 +1,138 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+
+
+// INCLUDE FILES
+#include <e32base.h>
+#include "EPos_CPositionerRegistry.h"
+#include "EPos_MPosStatusObserver.h"
+#include "EPos_CPosPsyExtension.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+// C++ default constructor
+CPositionerRegistry::CPositionerRegistry(
+    MPosStatusObserver* aStatusObserver)
+:   iStatusObserver(aStatusObserver)
+    {
+    }
+    
+// Destructor
+CPositionerRegistry::~CPositionerRegistry()
+    {
+    iPsyExtensions.ResetAndDestroy();
+    }
+
+// Static Singleton constructor.
+CPositionerRegistry* CPositionerRegistry::InstanceL(
+    MPosStatusObserver* aStatusObserver)
+    {
+    CPositionerRegistry* self;
+    TAny* tlsptr = Dll::Tls();
+
+	if (tlsptr)
+		{
+        // An instance already exists.
+        self = reinterpret_cast<CPositionerRegistry*> (Dll::Tls());
+		}
+    else
+        {
+        // Instance does not exist. Create one.
+        self = new (ELeave) CPositionerRegistry(aStatusObserver);
+		Dll::SetTls(reinterpret_cast<TAny*> (self));
+        }
+
+	self->iRefCount++;
+	return self;
+    }
+
+// Singleton destructor
+void CPositionerRegistry::Release()
+    {
+	if (--iRefCount == 0)
+		{
+        Dll::SetTls(NULL);
+		delete this;
+		}
+    }
+
+// ---------------------------------------------------------
+// CPositionerRegistry::RegisterPositionerL
+//
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+CPosPsyExtension* CPositionerRegistry::RegisterPositionerL(TUid aImplementationUid)
+    {
+    TInt pos = Find(aImplementationUid);
+    CPosPsyExtension* psyExtension = NULL;
+    if (pos == KErrNotFound)
+        {
+        psyExtension = new (ELeave) CPosPsyExtension(
+            aImplementationUid, iStatusObserver);
+        CleanupStack::PushL(psyExtension);
+        User::LeaveIfError(iPsyExtensions.Append(psyExtension));
+        CleanupStack::Pop(psyExtension);
+        }
+    else
+        {
+        psyExtension = iPsyExtensions[pos];
+        }
+    psyExtension->RegisterPositioner();
+    return psyExtension;
+    }
+
+// ---------------------------------------------------------
+// CPositionerRegistry::DeregisterPositioner
+//
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CPositionerRegistry::DeregisterPositioner(TUid aImplementationUid)
+    {
+    TInt pos = Find(aImplementationUid);
+    if (pos != KErrNotFound)
+        {
+        CPosPsyExtension* psyExtension = iPsyExtensions[pos];
+        if (psyExtension->UnregisterPositioner() == 0)
+            {
+            // There are no more positioners using this PSY
+            delete psyExtension;
+            iPsyExtensions.Remove(pos);
+            }
+        }
+    }
+
+// ---------------------------------------------------------
+// CPositionerRegistry::Find
+//
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+TInt CPositionerRegistry::Find(TUid aImplementationUid)
+    {
+    TInt count = iPsyExtensions.Count();
+    for (TInt i = 0; i < count; i++)
+        {
+        if (iPsyExtensions[i]->iImplementationUid == aImplementationUid)
+            {
+            return i;
+            }
+        }
+    return KErrNotFound;
+    }
+
+//  End of File