sl@0: // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // The file-store database which provides the default format
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "US_STD.H"
sl@0: #include <s32file.h>
sl@0: 
sl@0: EXPORT_C CDbFileStoreDatabase::CDbFileStoreDatabase(RFs& aFs)
sl@0: 	:iFs(aFs)
sl@0: 	{}
sl@0: 
sl@0: EXPORT_C CDbFileStoreDatabase::~CDbFileStoreDatabase()
sl@0: 	{
sl@0: 	if (iDelete)
sl@0: 		{
sl@0: 		delete iStore;		// must be destroyed before the file is deleted
sl@0: 		iStore=0;
sl@0: 
sl@0: 		// If a debug build - record error
sl@0: 		TInt fileDeleteErr=iFs.Delete(*iName);
sl@0: 		#ifdef _DEBUG
sl@0: 			if (fileDeleteErr != KErrNone)
sl@0: 			{
sl@0: 				RDebug::Print(_L("CDbFileStoreDatabase::~CDbFileStoreDatabase - Failed to delete file. Error = %d"), fileDeleteErr);
sl@0: 			}
sl@0: 		#endif
sl@0: 		}
sl@0: 	delete iName;
sl@0: 	}
sl@0: 
sl@0: CDbFileStoreDatabase* CDbFileStoreDatabase::NewLC(RFs& aFs)
sl@0: 	{
sl@0: 	CDbFileStoreDatabase* self=new(ELeave) CDbFileStoreDatabase(aFs);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // over-ride the store database and just mark the file for deletion
sl@0: //
sl@0: EXPORT_C void CDbFileStoreDatabase::DestroyL()
sl@0: 	{
sl@0: 	iDelete=ETrue;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // Provide the "size" and "usage" properties
sl@0: //
sl@0: EXPORT_C TInt CDbFileStoreDatabase::Property(CDbDatabase::TProperty aProperty)
sl@0: 	{
sl@0: 	switch (aProperty)
sl@0: 		{
sl@0: 	case CDbDatabase::EUpdateStats:
sl@0: 		return 1;
sl@0: 	case CDbDatabase::ESize:
sl@0: 	case CDbDatabase::EUsage:
sl@0: 		{
sl@0: 		TInt size;
sl@0: 		TInt r=STATIC_CAST(CFileStore&,Store()).File().Size(size);
sl@0: 		if (r<0)
sl@0: 			return r;
sl@0: 		if (aProperty==CDbDatabase::ESize)
sl@0: 			return size;
sl@0: 		r=iReclaim;
sl@0: 		if (r<0)
sl@0: 			return r;
sl@0: 		return 100-(r*100)/size;	// usage in %
sl@0: 		}
sl@0: 	default:
sl@0: 		return CDbStoreDatabase::Property(aProperty);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: //SYMBIAN_REMOVE_TRIVIAL_ENCRYPTION version of the method.
sl@0: EXPORT_C void CDbFileStoreDatabase::CreateL(const TDesC& aName, TDbFormat::TCreate aMode,
sl@0:                                             const TUidType& aType)
sl@0: 	{
sl@0: 	__ASSERT(!iName);	// check construction phase
sl@0: //
sl@0: 	iName=aName.AllocL();
sl@0: 	CFileStore* store;
sl@0: 	switch (aMode)
sl@0: 		{
sl@0: 	default:
sl@0: 		__LEAVE(KErrNotSupported);
sl@0: 	case TDbFormat::ECreate:   
sl@0: 		store=CPermanentFileStore::CreateL(iFs,aName,EFileRead|EFileWrite);
sl@0: 		break;
sl@0: 	case TDbFormat::EReplace:
sl@0: 		store=CPermanentFileStore::ReplaceL(iFs,aName,EFileRead|EFileWrite);
sl@0: 		break;
sl@0: 		};
sl@0: 	iStore=store;
sl@0: 	iDelete=ETrue;		// cleanup fully in case of failure
sl@0: 	store->SetTypeL(aType);
sl@0: 	store->SetRootL(CreateRootL(CDbStoreDatabase::ConstructL()));
sl@0: 	store->CommitL();
sl@0: 	iDelete=EFalse;				// file is now good
sl@0: 	}
sl@0: 
sl@0: // SYMBIAN_REMOVE_TRIVIAL_ENCRYPTION version of the method.
sl@0: // Create the standard file database. The database is the root stream
sl@0: //
sl@0: EXPORT_C CDbDatabase* CDbFileStoreDatabase::CreateL(RFs& aFs, const TDesC& aName,
sl@0:                                                     TDbFormat::TCreate aMode, const TUidType& aType)
sl@0: 	{
sl@0: 	CDbFileStoreDatabase* self=NewLC(aFs);
sl@0: 	self->CreateL(aName,aMode,aType);
sl@0: 	CDbDatabase* db=self->InterfaceL();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return db;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: //
sl@0: // default implementation. Database _is_ the root
sl@0: //
sl@0: EXPORT_C TStreamId CDbFileStoreDatabase::CreateRootL(TStreamId aDatabaseId)
sl@0: 	{
sl@0: 	return aDatabaseId;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // Open, phase #1
sl@0: // open the file-store and return the root stream id
sl@0: //
sl@0: EXPORT_C void CDbFileStoreDatabase::OpenL(const TDesC& aName,TDbFormat::TOpen aMode)
sl@0: 	{
sl@0: 	__ASSERT(!iName);	// check construction phase
sl@0: //
sl@0: 	iName=aName.AllocL();
sl@0: 	TUint mode=aMode==TDbFormat::EReadOnly ? EFileShareReadersOnly : EFileWrite;
sl@0: 	CFileStore* store=CPermanentFileStore::OpenL(iFs,*iName,mode);
sl@0: 	iStore=store;
sl@0: 	CDbStoreDatabase::RestoreL(DatabaseIdL(store->Root()));
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // default implementation. Database _is_ the root
sl@0: //
sl@0: EXPORT_C TStreamId CDbFileStoreDatabase::DatabaseIdL(TStreamId aRootId)
sl@0: 	{
sl@0: 	return aRootId;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // Create the standard file database. The database is the root stream
sl@0: //
sl@0: EXPORT_C CDbSource* CDbFileStoreDatabase::OpenL(RFs& aFs,const TDesC& aName,TDbFormat::TOpen aMode)
sl@0: 	{
sl@0: 	CDbFileStoreDatabase* self=NewLC(aFs);
sl@0: 	self->OpenL(aName,aMode);
sl@0: 	CDbSource* src=self->SourceL();
sl@0: 	CleanupStack::Pop();			// self
sl@0: 	return src;
sl@0: 	}
sl@0: 
sl@0: const TDbFormat KBuiltinFormat=
sl@0: 	{
sl@0: 	_S("epoc"),&CDbFileStoreDatabase::CreateL,&CDbFileStoreDatabase::OpenL,
sl@0: 	{KPermanentFileStoreLayoutUidValue,KDbmsFileDatabaseUidValue}
sl@0: 	};
sl@0: 	
sl@0: GLDEF_D const TDbDriver KBuiltinDriver={1,&KBuiltinFormat};