diff -r e53adc4c49de -r df67dc5d759e commsfwsupport/commselements/nodemessages/src/nm_interfaces.cpp
--- a/commsfwsupport/commselements/nodemessages/src/nm_interfaces.cpp	Mon May 03 13:39:24 2010 +0300
+++ b/commsfwsupport/commselements/nodemessages/src/nm_interfaces.cpp	Fri May 14 14:12:43 2010 +0100
@@ -115,6 +115,15 @@
 *
 *
 *******************************************************************************************************/
+
+EXPORT_C RNodeInterface::RNodeInterface() : iPreAlloc(NULL)
+	{}
+
+EXPORT_C RNodeInterface::~RNodeInterface()
+	{
+	__ASSERT_DEBUG(iPreAlloc == NULL, User::Panic(KSpecAssert_ElemNodeMessIntC, 1));
+	}
+
 EXPORT_C void RNodeInterface::Open(TNodeId aPostTo, const TClientType& aClientType, MTransportSender* aSender)
 /*
 Opens 'this'.
@@ -129,9 +138,14 @@
 	{
 	RClientInterface::Close();
 	iClientType = TClientType::NullType();
+	if(iPreAlloc!=NULL)
+		{
+		delete iPreAlloc->iPreAllocatedActivityChunk;
+		}
+	delete iPreAlloc;
+	iPreAlloc = NULL;
 	}
 
-
 EXPORT_C void RNodeInterface::PostMessage(const TRuntimeCtxId& aPostFrom, const TNodeId::TRemainder& aPostTo, const TSignalBase& aMessage) const
 	{
 	TUint8 postTo[__Align8(TRuntimeCtxId::KMaxInlineAddressSize)];
@@ -149,6 +163,40 @@
 	return RecipientId() == aRHS.RecipientId();
 	}
 
+EXPORT_C void RNodeInterface::PreAllocL(TUint aAllocSize)
+/**	Pre-allocates memory and stores the pointer and its size
+@param size of memory space to prealloc
+*/
+	{
+	if(iPreAlloc!=NULL)
+		// Memory already allocated for this client
+		{
+		__ASSERT_DEBUG(iPreAlloc->iPreAllocatedActivityChunk != NULL, User::Panic(KSpecAssert_ElemNodeMessIntC, 5));
+		return;
+		}
+	iPreAlloc = new (ELeave) TPreAllocStore();
+	iPreAlloc->iPreAllocatedActivityChunk = User::AllocL(aAllocSize);
+	iPreAlloc->iPreAllocSize = aAllocSize;
+	}
+
+EXPORT_C TAny* RNodeInterface::ClaimPreallocatedSpace(TUint aSize)
+/**	Finds a pointer of the requested size from the preallocation array (see PreallocActivitySpaceL) and returns it
+@param size of memory space requested
+@return pointer to memory allocation or NULL if no preallocation and allocation here fails
+*/
+	{
+	if(!(iPreAlloc && aSize <= iPreAlloc->iPreAllocSize))
+		{
+		// By this stage the PreAllocL must have been triggered and memory space must have been allocated.
+		__ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_ElemNodeMessIntC, 3));
+		delete iPreAlloc->iPreAllocatedActivityChunk;
+		iPreAlloc->iPreAllocatedActivityChunk = User::AllocL(aSize);
+		}
+	TAny* preallocatedSpace = (RNodeInterface*)iPreAlloc->iPreAllocatedActivityChunk;
+	iPreAlloc->iPreAllocatedActivityChunk=NULL;
+	return preallocatedSpace;
+	}
+
 /******************************************************************************************************
 *
 *
@@ -204,7 +252,7 @@
 
 EXPORT_C void RRequestOriginator::Open(RRequestOriginator& aOriginalRequest)
 	{
-	__ASSERT_DEBUG(aOriginalRequest.IsOpen(), User::Panic(KSpecAssert_ElemNodeMessIntC, 1));
+	__ASSERT_DEBUG(aOriginalRequest.IsOpen(), User::Panic(KSpecAssert_ElemNodeMessIntC, 4));
 	iNode = aOriginalRequest.iNode;
 	iRemainder = aOriginalRequest.iRemainder;
 	aOriginalRequest.Close();