phonebookui/Phonebook/PbkExt/src/CPbkExtGlobals.cpp
changeset 0 e686773b3f54
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook/PbkExt/src/CPbkExtGlobals.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2002 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: 
+*       PbkExt.dll global variables. A singleton class.
+*
+*/
+
+
+// INCLUDE FILES
+#include "CPbkExtGlobals.h"
+#include "CPbkMultiExtensionFactory.h"
+#include "CPbkExtensionLoader.h"
+
+// Debugging headers
+#include <PbkDebug.h>
+#include "PbkProfiling.h"
+
+#include <ecom/ecom.h>
+
+// Unnamed namespace for local definitions
+namespace {
+
+const TInt KExtensionGranularity = 1;
+
+/**
+ * Returns global instance of CPbkExtGlobals
+ */
+inline CPbkExtGlobals* Instance()
+    {
+    return static_cast<CPbkExtGlobals*>(Dll::Tls());
+    }
+
+} // namespace
+
+
+// ==================== MEMBER FUNCTIONS ====================                 
+CPbkExtGlobals::CPbkExtGlobals() :
+    iExtensions(KExtensionGranularity)
+    {
+	}	
+
+CPbkExtGlobals::~CPbkExtGlobals()
+    {
+    delete iMultiFactory;
+    iExtensions.ResetAndDestroy();
+
+    // Cleanup ECom session
+    REComSession::FinalClose();
+    }
+
+CPbkExtGlobals* CPbkExtGlobals::NewLC()
+    {
+    CPbkExtGlobals* self = new (ELeave) CPbkExtGlobals;
+    CleanupStack::PushL( self );
+
+    return self;
+    }
+
+void CPbkExtGlobals::IncRef()
+    {
+    ++iRefCount;
+    }
+
+TInt CPbkExtGlobals::DecRef()
+    {
+    return --iRefCount;
+    }
+
+EXPORT_C CPbkExtGlobals* CPbkExtGlobals::InstanceL()
+    {
+    CPbkExtGlobals* instance = Instance();
+
+    if (!instance)
+        {
+        instance = CPbkExtGlobals::NewLC();
+        User::LeaveIfError(Dll::SetTls(instance));
+        CleanupStack::Pop(instance);
+        }
+
+    instance->IncRef();
+
+    return instance;
+    }
+
+EXPORT_C MPbkExtensionFactory& CPbkExtGlobals::FactoryL()
+    {    
+    if (!iMultiFactory)
+		{
+        __PBK_PROFILE_START(PbkProfiling::EPbkExtGlobalsScannerConstruct);
+        // Make sure that there are no extensions when scanning
+        iExtensions.ResetAndDestroy();
+        // If scanning fails we leave here so that iMultiFactory
+        // doesn't get created. So when calling this function
+        // again scanning is tried again.
+        CPbkExtensionScanner* scanner = 
+            CPbkExtensionScanner::NewLC(iExtensions);
+        __PBK_PROFILE_END(PbkProfiling::EPbkExtGlobalsScannerConstruct);
+        __PBK_PROFILE_START(PbkProfiling::EExtensionScan);
+        scanner->ScanL();
+        CleanupStack::PopAndDestroy(scanner);
+        __PBK_PROFILE_END(PbkProfiling::EExtensionScan);
+
+        __PBK_PROFILE_START(PbkProfiling::EMultiFactoryConstruct);
+		iMultiFactory = CPbkMultiExtensionFactory::NewL();
+
+		const TInt count = iExtensions.Count();
+		for (TInt i=0; i<count; ++i)
+			{
+			iMultiFactory->AppendL(iExtensions.At(i)->ExtensionFactory());
+			}
+        __PBK_PROFILE_END(PbkProfiling::EMultiFactoryConstruct);
+		}
+
+    return *iMultiFactory;
+    }
+
+void CPbkExtGlobals::DoRelease()
+    {
+    if (DecRef() == 0)
+        {
+        Dll::SetTls(NULL);
+        delete this;
+        }
+    }
+
+// End of File