userlibandfileserver/fileserver/inc/filesystem_utils.inl
changeset 45 329ab0095843
parent 44 36bfc973b146
child 46 0bf4040442f9
--- a/userlibandfileserver/fileserver/inc/filesystem_utils.inl	Thu Jan 07 13:38:45 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,201 +0,0 @@
-// Copyright (c) 1995-2009 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
-*/
-
-#if !defined(__FILESYSTEM_UTILS_INL__)
-#define __FILESYSTEM_UTILS_INL__
-
-
-//-----------------------------------------------------------------------------
-/** @return 2^aVal */
-inline TUint32 Pow2(TUint32 aVal)
-    {
-    ASSERT(aVal<32);
-    return 1 << aVal;
-    }
-
-//-----------------------------------------------------------------------------
-/** @return TUint32 value equals 2^aVal */
-inline TUint32 Pow2_32(TUint32 aVal)
-    {
-    ASSERT(aVal < 32);
-    return 1 << aVal;
-    }
-
-//-----------------------------------------------------------------------------
-/** @return TUint64 value equals 2^aVal */
-inline TUint64 Pow2_64(TUint32 aVal)
-    {
-    ASSERT(aVal < 64);
-    return ((TUint64)1) << aVal;
-    }
-
-//-----------------------------------------------------------------------------
-/**
-    Indicates if a number passed in is a power of two
-    @return ETrue if aVal is a power of 2 
-*/
-inline TBool IsPowerOf2(TUint32 aVal)
-    {
-    if (aVal==0)
-        return EFalse;
-
-    return !(aVal & (aVal-1));
-    }
-
-//-----------------------------------------------------------------------------
-/**
-    Indicates if a number passed in is a power of two
-    @return ETrue if aVal is a power of 2 
-*/
-inline TBool IsPowerOf2_64(TUint64 aVal)
-    {
-    if (aVal==0)
-        return EFalse;
-
-    return !(aVal & (aVal-1));
-
-    }
-
-//-----------------------------------------------------------------------------
-
-/**
-    rounds down the given value to 2^aGranularityLog2
-    @param  aVal                input value to round down
-    @param  aGranularityLog2    Log2(granularity)
-    @return rounded - down value
-*/
-inline TUint32 RoundDown(TUint32 aVal, TUint32 aGranularityLog2)
-{
-    ASSERT(aGranularityLog2 < 32);
-    return (aVal >> aGranularityLog2) << aGranularityLog2;
-}
-
-//-----------------------------------------------------------------------------
-/**  
-    Rounds up aVal to the 2^aGranularityLog2 
-    For example: RoundUp(0x08, 2) == 0x08; RoundUp(0x08, 3) == 0x08; RoundUp(0x08, 4) == 0x10; RoundUp(0x19, 4) == 0x20
-    
-    @return rounded-up value
-*/
-inline TUint32 RoundUp(TUint32 aVal, TUint32 aGranularityLog2)
-    {
-    ASSERT(aGranularityLog2 < 32);
-                                         
-    if( (aVal & ((1<<aGranularityLog2)-1)) == 0)
-        return aVal;    
-
-    aVal >>= aGranularityLog2;
-    aVal++;
-    aVal <<= aGranularityLog2;
-
-    return aVal;
-    }
-
-//-----------------------------------------------------------------------------
-
-/**
-    @return Boolean exclusive OR between a1 and a2
-    This function should be used on C-style TBool, which is, actually TInt type; Its '0' value means "False" and _any_ non-zero means "True"
-    E.g: BoolXor(0x17, 0x4a) == EFalse;
-*/
-TBool BoolXOR(TBool a1, TBool a2)
-    {
-    if(!a1 && !a2)        
-        return EFalse;
-    else if(a1 && a2)
-        return EFalse;
-    else
-        return ETrue;
-    }
-
-//-----------------------------------------------------------------------------
-
-/**
-    Calculates the log2 of a number
-    This is the explicitly inlined version. Extensive using it may result in a code bloat.
-
-    @param aNum Number to calulate the log two of
-    @return The log two of the number passed in
-*/
-inline TUint32 Log2_inline(TUint32 aVal)
-    {
-    __ASSERT_COMPILE(sizeof(TUint32) == 4);
-    ASSERT(aVal);
-
-    TUint32 bitPos=31;
-
-    if(!(aVal >> 16)) {bitPos-=16; aVal<<=16;}
-    if(!(aVal >> 24)) {bitPos-=8;  aVal<<=8 ;}
-    if(!(aVal >> 28)) {bitPos-=4;  aVal<<=4 ;}
-    if(!(aVal >> 30)) {bitPos-=2;  aVal<<=2 ;}
-    if(!(aVal >> 31)) {bitPos-=1;}
-    
-    return bitPos;
-    }
-
-
-//-----------------------------------------------------------------------------
-/**
-    Calculates number of '1' bits in the aVal
-    This is the explicitly inlined version. Extensive using it may result in a code bloat.
-
-    @param aVal some value
-    @return number of '1' bits in the aVal
-*/
-inline TUint32 Count1Bits_inline(TUint32 aVal)
-    {
-    if(!aVal)
-        return 0;
-
-    if(aVal == 0xFFFFFFFF)
-        return 32;
-
-    aVal = aVal - ((aVal >> 1) & 0x55555555);
-    aVal = (aVal & 0x33333333) + ((aVal >> 2) & 0x33333333);
-    aVal = (aVal + (aVal >> 4)) & 0x0f0f0f0f;
-    aVal = aVal + (aVal >> 8);
-    aVal = aVal + (aVal >> 16);
-
-    return aVal & 0x3f;
-    }
-
-
-
-
-
-
-#endif //__FILESYSTEM_UTILS_INL__
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