--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlanldd/wlan_symbian/wlanldd_symbian/inc/wllddcircularbuffer.inl	Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,171 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:   Implementation of RWlanCircularBuffer inline methods.
+*
+*/
+
+/*
+* %version: 2 %
+*/
+
+#include <kernel.h> // for Kern::SystemTime()
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline void RWlanCircularBuffer<size>::DoInit()
+    {
+    iSize = size;
+    iPacketAmount = 0;
+    iGetIndex = 0;
+    iPutIndex = 0;
+    iBecameEmptyAt = 0;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline void RWlanCircularBuffer<size>::Release()
+    {
+    // Do nothing
+    }
+    
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TBool RWlanCircularBuffer<size>::IsEmpty() const
+    {
+    return iPacketAmount == 0 ? ETrue : EFalse;
+    }
+    
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TBool RWlanCircularBuffer<size>::IsFull() const
+    {
+    return iPacketAmount == iSize ? ETrue : EFalse;
+    }
+    
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TDataBuffer* RWlanCircularBuffer<size>::GetPacket()
+    {
+    TDataBuffer* packet = NULL;
+    
+    if ( !IsEmpty() )
+        {
+        packet = iBuffer[iGetIndex];
+        
+        if ( ++iGetIndex == iSize )
+            {
+            iGetIndex = 0;
+            }
+        
+        if ( --iPacketAmount == 0 )
+            {
+            iBecameEmptyAt = Kern::SystemTime();
+            }
+        }
+    
+    return packet;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TBool RWlanCircularBuffer<size>::PutPacket( TDataBuffer* aPacket )
+    {
+    TBool ret( EFalse );
+    
+    if ( !IsFull() )
+        {
+        iBuffer[iPutIndex] = aPacket;
+        
+        if ( ++iPutIndex == iSize )
+            {
+            iPutIndex = 0;
+            }
+        
+        ++iPacketAmount;
+        ret = ETrue;
+        }
+
+    return ret;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TDataBuffer* RWlanCircularBuffer<size>::PeekPacket()
+    {
+    TDataBuffer* packet = NULL;
+    
+    if ( !IsEmpty() )
+        {
+        packet = iBuffer[iGetIndex];
+        }
+    
+    return packet;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TUint RWlanCircularBuffer<size>::GetLength() const
+    {
+    return iPacketAmount;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+template <TUint size>
+inline TBool RWlanCircularBuffer<size>::IsActive( TInt64 aTimeNow ) const
+    {
+    const TInt64 KActivityThreshold ( 25000 ); // microseconds
+    
+    if ( !IsEmpty() )
+        {
+        return ETrue;
+        }
+    else
+        {
+        if ( aTimeNow - iBecameEmptyAt > KActivityThreshold )
+            {
+            return EFalse;
+            }
+        else
+            {
+            return ETrue;
+            }
+        }
+    }