--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SigComp/SigCompEngine/src/SigCompCompartmentStatesHolder.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,141 @@
+// Copyright (c) 2003-2009 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:
+// Name        : SigCompCompartmentStatesHolder.cpp
+// Part of     : SigComp
+// SigComp API frontend
+// Version     : 1.0
+//
+
+
+
+// INCLUDE FILES
+#include "Sigcomp.h"
+#include "StateMgr.h"
+#include "SigCompCompartmentStatesHolder.h"
+
+
+// ============================ MEMBER FUNCTIONS ==============================
+
+CSigCompCompartmentStatesHolder::CSigCompCompartmentStatesHolder(
+                        CStateMgr& aStateMgr,
+                        CSigComp::TMemorySize aStateMemorySize)
+    {
+
+    iStateMgr = &aStateMgr;
+    iStateMemorySize = aStateMemorySize;
+    iStateMemoryUsed = 0;
+    }
+
+// Destructor
+EXPORT_C CSigCompCompartmentStatesHolder::~CSigCompCompartmentStatesHolder()
+    {
+
+    TInt csiNum = iCompartmentStateItems.Count();
+    for (TInt i = 0; i < csiNum; i++)
+        {
+        TStateItem* si = iCompartmentStateItems[i].iStateItem;
+        iStateMgr->ReclaimStateItem(si);
+        }
+
+    iCompartmentStateItems.Close();
+
+    iStateMgr = NULL;
+    }
+
+
+// ----------------------------------------------------------------------------
+// CSigCompCompartmentStatesHolder::AddStateItemL
+// add new state to compartment
+// ----------------------------------------------------------------------------
+//
+
+TBool CSigCompCompartmentStatesHolder::AddStateItemL(TStateItem* aStateItem,
+                                         TUint16 aStateRetentionPriority)
+    {
+
+    TInt csiNum = iCompartmentStateItems.Count();
+
+    for (TInt i = 0; i < csiNum; i++)
+        {
+        if (iCompartmentStateItems[i].iStateItem == aStateItem)
+            {
+            return EFalse;
+            }
+        }
+
+    while ((iStateMemoryUsed+aStateItem->iStateLength+64) >
+          static_cast<TUint>(iStateMemorySize))
+        {
+        TInt j = -1;
+        csiNum = iCompartmentStateItems.Count();
+        for (TInt i = 0; i < csiNum; i++)
+            {
+            if (j < 0)
+                {
+                j = i;
+                }
+            else
+                {
+                TUint srp1 = iCompartmentStateItems[i].iStateRetentionPriority;
+                TUint srp2 = iCompartmentStateItems[j].iStateRetentionPriority;
+                if (srp1 < srp2)
+                    {
+                    j = i;
+                    }
+                }
+            }
+
+        RemoveStateItemL(j);
+        }
+
+    TCompartmentStateItem csi;
+    csi.iStateItem = aStateItem;
+    csi.iStateRetentionPriority = aStateRetentionPriority;
+
+    User::LeaveIfError(iCompartmentStateItems.Append(csi));
+    iStateMemoryUsed += (aStateItem->iStateLength + 64);
+
+    return ETrue;
+    }
+
+
+// ----------------------------------------------------------------------------
+// CSigCompCompartmentStatesHolder::RemoveStateItemL
+// remove state from compartment
+// ----------------------------------------------------------------------------
+//
+
+void CSigCompCompartmentStatesHolder::RemoveStateItemL(
+                                                  TStateItem* aStateItem)
+    {
+
+    TInt csiNum = iCompartmentStateItems.Count();
+    for (TInt i = 0; i < csiNum; i++)
+        {
+        if (iCompartmentStateItems[i].iStateItem == aStateItem)
+            {
+            RemoveStateItemL(i);
+            }
+        }
+    }
+
+
+void CSigCompCompartmentStatesHolder::RemoveStateItemL(TInt aStateItemIndex)
+    {
+
+    TStateItem* si = iCompartmentStateItems[aStateItemIndex].iStateItem;
+    iStateMemoryUsed -= (si->iStateLength + 64);
+    iStateMgr->ReclaimStateItem(si);
+    iCompartmentStateItems.Remove(aStateItemIndex);
+    }