userlibandfileserver/fileserver/shostmassstorage/server/controller/tlogicalunitlist.cpp
// Copyright (c) 2008-2009 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:
//
/**
@file
@internalTechnology
*/
#include <e32base.h>
#include "msctypes.h"
#include "cusbhostmslogicalunit.h"
#include "tlogicalunitlist.h"
#include "msdebug.h"
#include "debug.h"
TLogicalUnitList::~TLogicalUnitList()
{
__MSFNLOG
iLu.ResetAndDestroy();
}
void TLogicalUnitList::AddLuL(CUsbHostMsLogicalUnit* aLu)
{
__MSFNLOG
__HOSTPRINT1(_L("Adding LU 0x%x"), aLu);
TInt r= FindLu(aLu->Lun());
if (r < 0)
{
if (r != KErrNotFound)
{
User::Leave(r);
}
}
else // If it is able to find the lun already
{
User::Leave(KErrAlreadyExists);
}
User::LeaveIfError(iLu.Append(aLu));
}
void TLogicalUnitList::RemoveLuL(TLun aLun)
{
__MSFNLOG
TInt index = FindLu(aLun);
User::LeaveIfError(index);
CUsbHostMsLogicalUnit* lu = iLu[index];
TRAPD(err, lu->UnInitL());
delete lu;
iLu.Remove(index);
if(err != KErrNone)
User::Leave(err);
}
void TLogicalUnitList::RemoveAllLuL()
{
__MSFNLOG
TInt ret = KErrNone;
for (TInt index = 0; index < iLu.Count(); index++)
{
CUsbHostMsLogicalUnit* lu = iLu[index];
TRAPD(err, lu->UnInitL());
delete lu;
// set return flag for first error condition
if (ret == KErrNone && err != KErrNone)
ret = err;
}
iLu.Reset();
User::LeaveIfError(ret);
}
TInt TLogicalUnitList::Count() const
{
__MSFNSLOG
return iLu.Count();
}
TInt TLogicalUnitList::FindLu(TLun aLun) const
{
__MSFNSLOG
TInt index;
for (index = 0; index < iLu.Count(); index++)
{
__HOSTPRINT2(_L("search %d : interface id = %d\n"), aLun, iLu[index]->Lun());
if (iLu[index]->Lun() == aLun)
{
break;
}
}
if (index == iLu.Count())
{
return KErrNotFound;
}
return index; // Instead of KErrNone, we pass the index >= 0 of the aLun in the list
}
CUsbHostMsLogicalUnit& TLogicalUnitList::GetLuL(TLun aLun) const
{
__MSFNSLOG
TInt index = FindLu(aLun);
User::LeaveIfError(index);
return *iLu[index];
}