userlibandfileserver/fileserver/shostmassstorage/server/shared/mscutils.inl
author Mike Kinghan <mikek@symbian.org>
Tue, 16 Nov 2010 14:39:21 +0000
branchGCC_SURGE
changeset 303 9b85206a602c
parent 0 a41df078684a
permissions -rw-r--r--
We need a way to pass flags to rombuilds in Raptor via extension flm interfaces, so that the CPP pass of the rom input files can be informed what toolchain we are building with and conditionally include or exclude files depending on whether the toolchain could build them.

// Copyright (c) 2008-2009 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
 
 Gets a 32-bit integer value which is in big-endian format from a byte stream.
 
 @param aPtr A pointer to a byte stream.
 @return A 32-bit long integer value in native machine format.
 
*/
inline TUint32 BigEndian::Get32(const TUint8 *aPtr)
    {
    return (aPtr[0]<<24) | (aPtr[1]<<16) | (aPtr[2]<<8) | aPtr[3];
    }

/**
    Inserts a 32-bit value into a byte stream in big-endian format.

    @param aPtr A pointer to a byte stream.
    @param aVal A 32-bit long integer value in native machine format.
 */
inline void BigEndian::Put32(TUint8 *aPtr, TUint32 aVal)
    {
    aPtr[0] = aVal >> 24;
    aPtr[1] = (aVal >> 16) & 0xff;
    aPtr[2] = (aVal >> 8) & 0xff;
    aPtr[3] = aVal & 0xff;
    }
/**
    Gets a 16-bit value integer which is in big-endian format from a byte stream.

    @param aPtr A pointer to a byte stream.
    @return A 16-bit long integer value in native machine format.
 */
inline TUint16 BigEndian::Get16(const TUint8 *aPtr)
    {
    return (aPtr[0]<<8) | aPtr[1];
    }
/**
    Inserts a 16-bit value into a byte stream in big-endian format.

    @param aPtr A pointer to a byte stream.
    @param aVal A 16-bit long integer value in native machine format.
 */
inline void BigEndian::Put16(TUint8 *aPtr, TUint16 aVal)
    {
    aPtr[0] = aVal >> 8;
    aPtr[1] = aVal & 0xff;
    }



/**
    Gets a 32-bit integer value which is in little-endian format from a byte
    stream.

    @param aPtr A pointer to a byte stream.
    @return A 32-bit long integer value in native machine format.
 */
inline TUint32 LittleEndian::Get32(const TUint8 *aPtr)
    {
    return (aPtr[3]<<24) | (aPtr[2]<<16) | (aPtr[1]<<8) | aPtr[0];
    }

/**
    Inserts a 32-bit value into a byte stream in little-endian format.

    @param aPtr A pointer to a byte stream.
    @param aVal A 32-bit long integer value in native machine format.
 */
inline void LittleEndian::Put32(TUint8 *aPtr, TUint32 aVal)
    {
    aPtr[3] = aVal >> 24;
    aPtr[2] = (aVal >> 16) & 0xff;
    aPtr[1] = (aVal >> 8) & 0xff;
    aPtr[0] = aVal & 0xff;
    }
/**
    Gets a 16-bit value integer which is in little-endian format from a byte
    stream.

    @param aPtr A pointer to a byte stream.
    @return A 16-bit long integer value in native machine format.
 */
inline TUint16 LittleEndian::Get16(const TUint8 *aPtr)
    {
    return (aPtr[1]<<8) | aPtr[0];
    }
/**
    Inserts a 16-bit value into a byte stream in little-endian format.

    @param aPtr A pointer to a byte stream.
    @param aVal A 16-bit long integer value in native machine format.
 */
inline void LittleEndian::Put16(TUint8 *aPtr, TUint16 aVal)
    {
    aPtr[1] = aVal >> 8;
    aPtr[0] = aVal & 0xff;
    }