--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/systemswstubs/examplecommonisc/IscDataTransmissionBase/inc/IscBufferQueue.h	Thu Jan 14 07:14:53 2010 +0200
@@ -0,0 +1,139 @@
+/*
+* Copyright (c) 2002-2005 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:  Declaration of DIscBufferQueue class
+*
+*/
+
+
+
+#ifndef ISCBUFFERQUEUE_H
+#define ISCBUFFERQUEUE_H
+
+//  INCLUDES
+#include <kernel.h>
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+class DIscQueue;
+
+// CLASS DECLARATION
+
+/**
+*  Queue class for buffer allocation and management
+*
+*  @lib IscDataTransmissionBase.LIB
+*  @since 2.8
+*/
+class DIscBufferQueue 
+    {
+    public:  // Constructors and destructor
+        
+        /**
+        * C++ default constructor.
+        */
+        DIscBufferQueue();
+        
+        /**
+        * Construct a new queue
+        * @since 2.8
+        * @param  TUint16 aSize size of element in queue
+        * @param TUint16 aCount amount of elements in queue
+        * @param TUint8* &aCurrentAddress start address of queue
+        * @return DIscBufferQueue* pointer to queue
+        */
+        static DIscBufferQueue* New( TUint16 aSize, TUint16 aCount, TUint8* &aCurrentAddress );
+        
+        /**
+        * Destructor.
+        */
+        ~DIscBufferQueue();
+
+    public: // New functions
+        
+        /**
+        * Checks if queue is empty
+        * @since 2.8
+        * @return TBool ETrue if empty, otherwise EFalse
+        */
+        inline TBool Empty(){return iCount ? EFalse : ETrue;};
+
+        /**
+        * Reserves first element from the queue
+        * @since 2.8
+        * @return TDes8* pointer to element if succesful, otherwise NULL
+        */
+        TDes8* Reserve();
+        
+        /**
+        * Releases element from the queue
+        * @since 2.8
+        * @param TDes8* aPtr pointer to element
+        * @return void 
+        */
+        void Release( TDes8* aPtr );
+
+    protected:  // New functions
+        
+        /**
+        * Function to disable interrupts
+        * @since 2.8
+        * @return TInt KErrNone if succesful
+        */
+        TInt DisableIrqs();
+
+        /**
+        * Function to restore interrupts
+        * @since 2.8
+        * @param TInt aLevel level where interrupts should be restored
+        * @return void 
+        */
+        void RestoreIrqs( TInt aLevel );
+
+
+    protected:  // Functions from base classes
+        
+    private:
+
+        /**
+        * 2nd phase constructor
+        * @since 2.8
+        * @param  TUint16 aSize size of element in queue
+        * @param TUint16 aCount amount of elements in queue
+        * @param TUint8* &aCurrentAddress start address of queue
+        * @return TInt 
+        */
+        TInt Construct( TUint16 aSize, TUint16 aCount, TUint8* &aCurrentAddress );
+
+    public:     // Data
+    
+    protected:  // Data
+
+    private:    // Data
+
+        volatile TUint32 iCount;
+        TUint32**       iBuffers;
+        DIscQueue*      iBuffersQueue;  
+
+    };
+
+#endif      // ISCBUFFERQUEUE_H   
+            
+// End of File