secureswitools/swisistools/source/interpretsislib/cardinality.cpp
changeset 0 ba25891c3a9e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/secureswitools/swisistools/source/interpretsislib/cardinality.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,89 @@
+/*
+* Copyright (c) 2006-2009 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: 
+*
+*/
+
+
+#include <stdexcept>
+#include "cardinality.h"
+#include "deserialiser.h"
+#include "serialiser.h"
+
+const TInt KShiftCardinality8=1;
+const TInt KShiftCardinality16=2;
+const TInt KShiftCardinality32=3;
+
+const TUint8  KMaxTUint8=0xFF;
+const TUint16 KMaxTUint16=0xFFFF;
+
+Cardinality::Cardinality ()
+	{
+	}
+
+Cardinality::~Cardinality ()
+	{
+	}
+
+void Cardinality::Internalize(Deserialiser& des)
+	{
+	TUint8 x;
+	des >> x;
+	TUint32 n=x;
+	if ((n&0x1)==0)
+		n>>=KShiftCardinality8;
+	else if ((n&0x2)==0)
+		{
+		des >> x;
+		n+=x<<8;
+		n>>=KShiftCardinality16;
+		}
+	else if ((n&0x4)==0)
+		{
+		des >> x;
+		TUint32 t = x << 16;
+		des >> x;
+		t += x << 8;
+		des >> x;
+		t += x;
+		n+=TUint32(iSize)<<8; // platform dependency
+		n>>=KShiftCardinality32;
+		}
+	else
+		{
+		throw std::runtime_error("corrupt cardinality");
+		}
+	iSize=n;
+	}
+void Cardinality::Externalize(Serialiser& ser)
+	{
+	TUint32 n=iSize;
+	if (n<=(KMaxTUint8>>KShiftCardinality8))
+		{
+			TUint8 x = n<<KShiftCardinality8;
+			ser << x;
+		}
+	else if (n<=(KMaxTUint16>>KShiftCardinality16))
+		{
+			TUint16 x = (TUint16)(n<<KShiftCardinality16)+0x1;
+			ser << x;
+		}
+	else
+		{
+			n = (n<<KShiftCardinality32)+0x3;
+			ser << n;
+		}
+
+	}
+