persistentstorage/dbms/sdbms/SD_UTL.CPP
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 22 Jan 2010 11:06:30 +0200
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// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#include "SD_STD.H"
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GLDEF_C void Panic(TDbsPanic aPanic)
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//
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// Panic the client
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//
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	{
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	_LIT(KCategory,"DBMS-server");
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	Dbms::Panic(KCategory,aPanic);
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	}
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// Class Dbms
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EXPORT_C void Dbms::Panic(const TDesC& aCategory,TInt aCode)
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//
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// Panic the client
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// Outside of the server this calls User::Panic, within it calls the server and LEAVES!
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//
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	{
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	__TRACE(aCategory);
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	__TRACE(aCode);
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	CDbsServer* server=CDbsServer::Instance();
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	if (server)
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		{
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		server->Panic(aCategory,aCode);
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		__LEAVE(KDbsLeavePanic);
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		}
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	else
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		User::Panic(aCategory,aCode);
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	}
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// streaming functions
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GLDEF_C void ExternalizeL(const TDbCol& aCol,RWriteStream& aStream)
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	{
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	aStream<<aCol.iName<<TUint8(aCol.iType)<<TInt32(aCol.iMaxLength)<<TUint8(aCol.iAttributes);
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	}
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GLDEF_C void ExternalizeL(const CDbColSet& aColSet,RWriteStream& aStream)
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	{
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	TInt cc=aColSet.Count();
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	aStream.WriteInt32L(cc);
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	for (TInt ii=0;++ii<=cc;)
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		aStream<<aColSet[ii];
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	}
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GLDEF_C void InternalizeL(CDbColSet& aColSet,RReadStream& aStream)
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	{
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	__ASSERT(aColSet.Count()==0);
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	TDbCol col;
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	TPtr name(col.iName.Des());
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	TInt cc=aStream.ReadInt32L();
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	while (--cc>=0)
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		{
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		aStream>>name;
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		col.iType=TDbColType(aStream.ReadUint8L());
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		col.iMaxLength=aStream.ReadInt32L();
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		col.iAttributes=aStream.ReadUint8L();
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		aColSet.AddL(col);
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		}
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	}
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GLDEF_C void ExternalizeL(const CDbKey& aKey,RWriteStream& aStream)
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	{
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	TInt cc=aKey.Count();
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	aStream.WriteInt32L(cc);
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	for (TInt ii=0;ii<cc;++ii)
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		{
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		const TDbKeyCol& col=aKey[ii];
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		aStream<<col.iName<<TUint8(col.iOrder)<<TInt32(col.iLength);
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		}
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	aStream<<TUint8(aKey.Comparison())<<TUint8(aKey.IsUnique());
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	}
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GLDEF_C void InternalizeL(CDbKey& aKey,RReadStream& aStream)
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	{
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	__ASSERT(aKey.Count()==0);
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	TDbKeyCol col;
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	TPtr name(col.iName.Des());
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	TInt cc=aStream.ReadInt32L();
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	while (--cc>=0)
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		{
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		aStream>>name;
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		TUint8 uInt = aStream.ReadUint8L();
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		col.iOrder=TDbKeyCol::TOrder(uInt);
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		col.iLength=aStream.ReadInt32L();
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		aKey.AddL(col);
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		}
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	aKey.SetComparison(TDbTextComparison(aStream.ReadUint8L()));
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	if (aStream.ReadUint8L())
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		aKey.MakeUnique();
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	}
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GLDEF_C void ExternalizeL(const CDbNames& aNames,RWriteStream& aStream)
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	{
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	TInt cc=aNames.Count();
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	aStream.WriteInt32L(cc);
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	for (TInt ii=0;ii<cc;++ii)
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		aStream<<aNames[ii];
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	}
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GLDEF_C void InternalizeL(CDbNames& aNames,RReadStream& aStream)
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	{
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	__ASSERT(aNames.Count()==0);
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	TDbName name;
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	TInt cc=aStream.ReadInt32L();
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	while (--cc>=0)
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		{
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		aStream>>name;
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		aNames.AddL(name);
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		}
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	}
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/**
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A helper function, used in
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"RWriteStream& operator<<(RWriteStream& aStream,const CDbStrings& aStrings)".
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@internalComponent
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*/
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GLDEF_C void ExternalizeL(const CDbStrings& aStrings,RWriteStream& aStream)
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	{
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	TInt cc=aStrings.Count();
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	aStream.WriteInt32L(cc);
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	for (TInt ii=0;ii<cc;++ii)
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		aStream<<aStrings[ii];
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	}
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/** 
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Represents a generic read/write DBMS string. It maps to a modifiable buffer descriptor 
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with maximum size KDbMaxStrLen.
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@see TBuf 
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@internalComponent
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*/
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typedef TBuf<KDbMaxStrLen> TDbString;
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/**
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A helper function, used in
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"RReadStream& operator>>(RReadStream& aStream,CDbStrings& aStrings)".
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@internalComponent
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*/
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GLDEF_C void InternalizeL(CDbStrings& aStrings,RReadStream& aStream)
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	{
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	__ASSERT(aStrings.Count()==0);
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	TDbString str;
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	TInt cc=aStream.ReadInt32L();
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	while (--cc>=0)
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		{
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		aStream>>str;
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		aStrings.AddL(str);
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		}
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	}