os/kernelhwsrv/userlibandfileserver/fileserver/fs_utils/filesystem_utils.cpp
changeset 0 bde4ae8d615e
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/userlibandfileserver/fileserver/fs_utils/filesystem_utils.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,91 @@
     1.4 +// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +//  Collection of common constants, utility functions, etc. for the file server and file systems.
    1.19 +//  Definitions here must be filesystem-agnostic, i.e. generic enougs to be used by every file system
    1.20 +//
    1.21 +//  This is the internal file and must not be exported.
    1.22 +
    1.23 +/**
    1.24 +    @file
    1.25 +    @internalTechnology
    1.26 +*/
    1.27 +
    1.28 +#include "filesystem_utils.h"
    1.29 +
    1.30 +//-----------------------------------------------------------------------------
    1.31 +
    1.32 +/**
    1.33 +    Calculates the log2 of a number
    1.34 +
    1.35 +    @param aNum Number to calulate the log two of
    1.36 +    @return The log two of the number passed in
    1.37 +*/
    1.38 +TUint32 Log2(TUint32 aVal)
    1.39 +    {
    1.40 +    return Log2_inline(aVal);
    1.41 +    }
    1.42 +
    1.43 +//-----------------------------------------------------------------------------
    1.44 +/**
    1.45 +    Calculates number of '1' bits in the aVal
    1.46 +
    1.47 +    @param aVal some value
    1.48 +    @return number of '1' bits in the aVal
    1.49 +*/
    1.50 +TUint32 Count1Bits(TUint32 aVal)
    1.51 +    {
    1.52 +    return Count1Bits_inline(aVal);
    1.53 +    }
    1.54 +
    1.55 +//-----------------------------------------------------------------------------
    1.56 +/**
    1.57 +    Removes trailing dots from aName.
    1.58 +    @return new string descriptor that may have its length adjusted
    1.59 +*/
    1.60 +TPtrC RemoveTrailingDots(const TDesC& aName)
    1.61 +    {
    1.62 +    TInt len = aName.Length();
    1.63 +    
    1.64 +    while(len > 0)
    1.65 +        {
    1.66 +        if(aName[len-1] == '.')
    1.67 +            len--;
    1.68 +        else
    1.69 +            break;
    1.70 +        }
    1.71 +
    1.72 +    TPtrC ptrNoDots(aName.Ptr(), len);
    1.73 +    return ptrNoDots;
    1.74 +    }
    1.75 +
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