userlibandfileserver/fileserver/fs_utils/filesystem_utils.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 26 Jan 2010 13:13:38 +0200
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// Copyright (c) 1995-2009 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 the License "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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//  Collection of common constants, utility functions, etc. for the file server and file systems.
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//  Definitions here must be filesystem-agnostic, i.e. generic enougs to be used by every file system
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//
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//  This is the internal file and must not be exported.
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/**
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    @file
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    @internalTechnology
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*/
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#include "filesystem_utils.h"
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//-----------------------------------------------------------------------------
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/**
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    Calculates the log2 of a number
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    @param aNum Number to calulate the log two of
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    @return The log two of the number passed in
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*/
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TUint32 Log2(TUint32 aVal)
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    {
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    return Log2_inline(aVal);
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    }
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//-----------------------------------------------------------------------------
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/**
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    Calculates number of '1' bits in the aVal
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    @param aVal some value
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    @return number of '1' bits in the aVal
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*/
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TUint32 Count1Bits(TUint32 aVal)
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    {
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    return Count1Bits_inline(aVal);
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    }
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//-----------------------------------------------------------------------------
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/**
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    Removes trailing dots from aName.
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    @return new string descriptor that may have its length adjusted
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*/
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TPtrC RemoveTrailingDots(const TDesC& aName)
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    {
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    TInt len = aName.Length();
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    while(len > 0)
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        {
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        if(aName[len-1] == '.')
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            len--;
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        else
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            break;
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        }
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    TPtrC ptrNoDots(aName.Ptr(), len);
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    return ptrNoDots;
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    }
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