1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 using System;

    19 using System.Collections.Generic;

    20 using System.Text;

    21 using SymbianUtils.BasicTypes;

    22 using SymbianETMLib.Common.Types;

    23 using SymbianETMLib.Common.Packets;

    24 

    25 namespace SymbianETMLib.Common.State

    26 {

    27     public class ETMDecodeStateContextID : ETMDecodeState

    28     {

    29         #region Constructors

    30         public ETMDecodeStateContextID( ETMStateData aManager )

    31             : base( aManager )

    32         {

    33             iContextIdBytesRequired = aManager.Config.ContextIDSize;

    34             iBytesRemaining = iContextIdBytesRequired;

    35         }

    36         #endregion

    37 

    38         #region API

    39         public override ETMDecodeState HandleByte( SymByte aByte )

    40         {

    41             // TODO: test this

    42             ETMDecodeState nextState = this;

    43             //

    44             int byteNumber = iContextIdBytesRequired - iBytesRemaining;

    45             uint val = aByte.LShift( byteNumber * 8 );

    46             iContextId |= val;

    47             //

    48             if ( --iBytesRemaining == 0 )

    49             {

    50                 // Got everything

    51                 base.StateData.SetContextID( iContextId );

    52                 nextState = new ETMDecodeStateSynchronized( base.StateData );

    53             }

    54             //

    55             return nextState;

    56         }

    57         #endregion

    58 

    59         #region Properties

    60         public string ContextIDName

    61         {

    62             get

    63             {

    64                 string ret = base.StateData.Config.GetContextID( iContextId );

    65                 return ret;

    66             }

    67         }

    68         #endregion

    69 

    70         #region Internal methods

    71         private void Trace()

    72         {

    73             base.DbgTrace( "CONTEXT_ID", string.Format( "ID: {0} [{1}]", iContextId, ContextIDName ) );

    74         }

    75         #endregion

    76 

    77         #region From System.Object

    78         #endregion

    79 

    80         #region Data members

    81         private readonly int iContextIdBytesRequired;

    82         private uint iContextId = 0;

    83         private int iBytesRemaining = 0;

    84         #endregion

    85     }

    86 }