--- a/userlibandfileserver/fileserver/inc/filesystem_utils.inl Tue Jan 19 13:48:03 2010 +0000
+++ /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__
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-