os/kernelhwsrv/userlibandfileserver/fileserver/fs_utils/filesystem_utils.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "Eclipse Public License v1.0"
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 //
    15 //  Collection of common constants, utility functions, etc. for the file server and file systems.
    16 //  Definitions here must be filesystem-agnostic, i.e. generic enougs to be used by every file system
    17 //
    18 //  This is the internal file and must not be exported.
    19 
    20 /**
    21     @file
    22     @internalTechnology
    23 */
    24 
    25 #include "filesystem_utils.h"
    26 
    27 //-----------------------------------------------------------------------------
    28 
    29 /**
    30     Calculates the log2 of a number
    31 
    32     @param aNum Number to calulate the log two of
    33     @return The log two of the number passed in
    34 */
    35 TUint32 Log2(TUint32 aVal)
    36     {
    37     return Log2_inline(aVal);
    38     }
    39 
    40 //-----------------------------------------------------------------------------
    41 /**
    42     Calculates number of '1' bits in the aVal
    43 
    44     @param aVal some value
    45     @return number of '1' bits in the aVal
    46 */
    47 TUint32 Count1Bits(TUint32 aVal)
    48     {
    49     return Count1Bits_inline(aVal);
    50     }
    51 
    52 //-----------------------------------------------------------------------------
    53 /**
    54     Removes trailing dots from aName.
    55     @return new string descriptor that may have its length adjusted
    56 */
    57 TPtrC RemoveTrailingDots(const TDesC& aName)
    58     {
    59     TInt len = aName.Length();
    60     
    61     while(len > 0)
    62         {
    63         if(aName[len-1] == '.')
    64             len--;
    65         else
    66             break;
    67         }
    68 
    69     TPtrC ptrNoDots(aName.Ptr(), len);
    70     return ptrNoDots;
    71     }
    72 
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