--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/dbms/ustor/US_FILE.CPP	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,178 @@
+// Copyright (c) 1998-2009 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:
+// The file-store database which provides the default format
+// 
+//
+
+#include "US_STD.H"
+#include <s32file.h>
+
+EXPORT_C CDbFileStoreDatabase::CDbFileStoreDatabase(RFs& aFs)
+	:iFs(aFs)
+	{}
+
+EXPORT_C CDbFileStoreDatabase::~CDbFileStoreDatabase()
+	{
+	if (iDelete)
+		{
+		delete iStore;		// must be destroyed before the file is deleted
+		iStore=0;
+
+		// If a debug build - record error
+		TInt fileDeleteErr=iFs.Delete(*iName);
+		#ifdef _DEBUG
+			if (fileDeleteErr != KErrNone)
+			{
+				RDebug::Print(_L("CDbFileStoreDatabase::~CDbFileStoreDatabase - Failed to delete file. Error = %d"), fileDeleteErr);
+			}
+		#endif
+		}
+	delete iName;
+	}
+
+CDbFileStoreDatabase* CDbFileStoreDatabase::NewLC(RFs& aFs)
+	{
+	CDbFileStoreDatabase* self=new(ELeave) CDbFileStoreDatabase(aFs);
+	CleanupStack::PushL(self);
+	return self;
+	}
+
+//
+// over-ride the store database and just mark the file for deletion
+//
+EXPORT_C void CDbFileStoreDatabase::DestroyL()
+	{
+	iDelete=ETrue;
+	}
+
+//
+// Provide the "size" and "usage" properties
+//
+EXPORT_C TInt CDbFileStoreDatabase::Property(CDbDatabase::TProperty aProperty)
+	{
+	switch (aProperty)
+		{
+	case CDbDatabase::EUpdateStats:
+		return 1;
+	case CDbDatabase::ESize:
+	case CDbDatabase::EUsage:
+		{
+		TInt size;
+		TInt r=STATIC_CAST(CFileStore&,Store()).File().Size(size);
+		if (r<0)
+			return r;
+		if (aProperty==CDbDatabase::ESize)
+			return size;
+		r=iReclaim;
+		if (r<0)
+			return r;
+		return 100-(r*100)/size;	// usage in %
+		}
+	default:
+		return CDbStoreDatabase::Property(aProperty);
+		}
+	}
+
+
+//SYMBIAN_REMOVE_TRIVIAL_ENCRYPTION version of the method.
+EXPORT_C void CDbFileStoreDatabase::CreateL(const TDesC& aName, TDbFormat::TCreate aMode,
+                                            const TUidType& aType)
+	{
+	__ASSERT(!iName);	// check construction phase
+//
+	iName=aName.AllocL();
+	CFileStore* store;
+	switch (aMode)
+		{
+	default:
+		__LEAVE(KErrNotSupported);
+	case TDbFormat::ECreate:
+		store=CPermanentFileStore::CreateL(iFs,aName,EFileRead|EFileWrite);
+		break;
+	case TDbFormat::EReplace:
+		store=CPermanentFileStore::ReplaceL(iFs,aName,EFileRead|EFileWrite);
+		break;
+		};
+	iStore=store;
+	iDelete=ETrue;		// cleanup fully in case of failure
+	store->SetTypeL(aType);
+	store->SetRootL(CreateRootL(CDbStoreDatabase::ConstructL()));
+	store->CommitL();
+	iDelete=EFalse;				// file is now good
+	}
+
+// SYMBIAN_REMOVE_TRIVIAL_ENCRYPTION version of the method.
+// Create the standard file database. The database is the root stream
+//
+EXPORT_C CDbDatabase* CDbFileStoreDatabase::CreateL(RFs& aFs, const TDesC& aName,
+                                                    TDbFormat::TCreate aMode, const TUidType& aType)
+	{
+	CDbFileStoreDatabase* self=NewLC(aFs);
+	self->CreateL(aName,aMode,aType);
+	CDbDatabase* db=self->InterfaceL();
+	CleanupStack::Pop(self);
+	return db;
+	}
+
+
+//
+// default implementation. Database _is_ the root
+//
+EXPORT_C TStreamId CDbFileStoreDatabase::CreateRootL(TStreamId aDatabaseId)
+	{
+	return aDatabaseId;
+	}
+
+//
+// Open, phase #1
+// open the file-store and return the root stream id
+//
+EXPORT_C void CDbFileStoreDatabase::OpenL(const TDesC& aName,TDbFormat::TOpen aMode)
+	{
+	__ASSERT(!iName);	// check construction phase
+//
+	iName=aName.AllocL();
+	const TUint mode=aMode==TDbFormat::EReadOnly ? EFileShareReadersOnly : EFileWrite;
+	CFileStore* store=CPermanentFileStore::OpenL(iFs,*iName,mode);
+	iStore=store;
+	CDbStoreDatabase::RestoreL(DatabaseIdL(store->Root()));
+	}
+
+//
+// default implementation. Database _is_ the root
+//
+EXPORT_C TStreamId CDbFileStoreDatabase::DatabaseIdL(TStreamId aRootId)
+	{
+	return aRootId;
+	}
+
+//
+// Create the standard file database. The database is the root stream
+//
+EXPORT_C CDbSource* CDbFileStoreDatabase::OpenL(RFs& aFs,const TDesC& aName,TDbFormat::TOpen aMode)
+	{
+	CDbFileStoreDatabase* self=NewLC(aFs);
+	self->OpenL(aName,aMode);
+	CDbSource* src=self->SourceL();
+	CleanupStack::Pop();			// self
+	return src;
+	}
+
+const TDbFormat KBuiltinFormat=
+	{
+	_S("epoc"),&CDbFileStoreDatabase::CreateL,&CDbFileStoreDatabase::OpenL,
+	{KPermanentFileStoreLayoutUidValue,KDbmsFileDatabaseUidValue}
+	};
+	
+GLDEF_D const TDbDriver KBuiltinDriver={1,&KBuiltinFormat};