sensorservices/sensorserver/src/server/sensrvchannelbuffer.cpp
author Tapani Kanerva <Tapani.Kanerva@nice.fi>
Thu, 11 Nov 2010 14:35:29 +0000
branchRCL_3
changeset 86 79105dd92dc2
parent 0 4e1aa6a622a0
permissions -rw-r--r--
Export meaningful default HWRM policy files, to fix Bug 3852
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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* Copyright (c) 2006-2008 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Sensor server channel buffer implementation
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*
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*/
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#include "sensrvdefines.h"
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#include "sensrvchannel.h"
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#include "sensrvpluginproxy.h"
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#include "sensrvchannelbuffer.h"
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#include "sensrvchannellistener.h"
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// ---------------------------------------------------------------------------
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// 2-phase constructor
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// ---------------------------------------------------------------------------
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//
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CSensrvChannelBuffer* CSensrvChannelBuffer::NewL(TInt aItemSize,
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                                                 TInt aBufferLength)
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    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::NewL(aItemSize: %d, aBufferLength: %d)" ), aItemSize, aBufferLength ) );
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    CSensrvChannelBuffer* self = new( ELeave ) CSensrvChannelBuffer(aItemSize, aBufferLength);
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::NewL - return 0x%x" ), self ) );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// C++ constructor
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// ---------------------------------------------------------------------------
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//
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CSensrvChannelBuffer::CSensrvChannelBuffer(TInt aItemSize,
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                                           TInt aBufferLength)
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    : iItemSize(aItemSize),
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      iBufferLength(aBufferLength < KSensrvMinimumBufferLength ? KSensrvMinimumBufferLength : aBufferLength),
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      iLatestWrittenItemIndex( KErrNotFound )
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    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::CSensrvChannelBuffer()" )) );
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    // Nothing to do
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::CSensrvChannelBuffer - return" ) ) );
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    }
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// ---------------------------------------------------------------------------
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// 2nd phase of construction
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// ---------------------------------------------------------------------------
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//
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void CSensrvChannelBuffer::ConstructL()
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    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::ConstructL()" ) ) );
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    // Check parameter validity here, as constructor cannot leave.
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    TInt bufferSize = iItemSize*iBufferLength;
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    if (   iItemSize <= 0 
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        || iBufferLength <= 0 
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        || (KMaxTInt/iItemSize) <= iBufferLength )
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        {
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        ERROR_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::ConstructL - ERROR: Invalid parameters" ) ) );
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        User::Leave(KErrArgument);
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        }
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    // Construct buffer
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    iBuffer = HBufC8::NewL(bufferSize);
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    BUFFER_TRACE( ( _L( "#### CSensrvChannelBuffer::ConstructL(): iBufferLength: %d" ), iBufferLength ) );
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::ConstructL - return" ) ) );
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    }
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CSensrvChannelBuffer::~CSensrvChannelBuffer()
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    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::~CSensrvChannelBuffer()" ) ) );
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    delete iBuffer;
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    iTailIndexArray.ResetAndDestroy();
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::~CSensrvChannelBuffer - return" ) ) );
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    }
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// ---------------------------------------------------------------------------
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// Get pointer to next free block (the beginning of head index item)
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// Invalidate next aCount items and move indexes accordingly.
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// ---------------------------------------------------------------------------
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//
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TUint8* CSensrvChannelBuffer::GetFreeBlock(TInt aCount)
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    {
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   111
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetFreeBlock(aCount: %d)" ), aCount ) );
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parents:
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   112
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   113
    __ASSERT_ALWAYS(aCount <= iBufferLength, User::Panic(KSensrvPanicCategory, ESensrvPanicOutOfBounds));
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   114
    __ASSERT_ALWAYS(!iRequestedFreeBlockLength, User::Panic(KSensrvPanicCategory, ESensrvPanicPreviousBlockNotYetWritten));
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parents:
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   115
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   116
    // Check if there is enough space in the end of the buffer to allocate continuous
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   117
    // block of aCount items
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   118
    if (iHeadIndex + aCount > iBufferLength)
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   119
        {
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   120
        // No room, invalidate the end of buffer and move head to start of buffer.
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   121
        InvalidateRange(iBufferLength);
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        iHeadIndex = 0;
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   123
        }
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    else
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   125
        {
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   126
        // There is room at end of buffer, do nothing
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   127
        }
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   128
    
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   129
    // Invalidate desired range
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   130
    InvalidateRange(aCount);
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   131
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   132
    // Get head pointer
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   133
    TUint8* ptr = const_cast<TUint8*>(iBuffer->Ptr());
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   134
    ptr += iHeadIndex*iItemSize;
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   135
    
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    iRequestedFreeBlockLength = aCount;
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   137
    
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   138
    DEBUG_PRINT_BUFFER;
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   139
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   140
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetFreeBlock - return %d" ), ptr ) );
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   141
    
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   142
    return ptr;
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   143
    }
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parents:
diff changeset
   144
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   145
// ---------------------------------------------------------------------------
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   146
// Validate specified count of items and adjust indexes.
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   147
// Head index is moved aCount items forward, as well as iValidEndIndex,
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   148
// if that is at head.
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   149
// ---------------------------------------------------------------------------
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   150
//
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   151
void CSensrvChannelBuffer::WroteBlock(TInt aCount)
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   152
    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::WroteBlock(aCount: %d)" ), aCount ) );
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   154
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   155
    __ASSERT_ALWAYS(iRequestedFreeBlockLength >= aCount, User::Panic(KSensrvPanicCategory, ESensrvPanicRequestedFreeBlockTooSmall));
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parents:
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   156
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   157
    // Negative count indicates an error
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   158
    TInt total(iHeadIndex + aCount);
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   159
    
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   160
    if (aCount < 0 || total > iBufferLength)
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parents:
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   161
        {
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   162
        ERROR_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::WroteBlock - Invalid count: %d, iBufferLength: %d, iHeadIndex: %d" ), aCount, iBufferLength, iHeadIndex ) );
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   163
        }
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   164
    else if (aCount)
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parents:
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   165
        {
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   166
        // Store the latest written item index to be used as initial data
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        iLatestWrittenItemIndex = total - 1;
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parents:
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   168
        
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        iHeadIndex = total;
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parents:
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   170
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   171
        if (iValidEndIndex < iHeadIndex)
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parents:
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   172
            {
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   173
            iValidEndIndex = iHeadIndex;
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   174
            }
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parents:
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   175
            
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   176
        if (iHeadIndex == iBufferLength)    
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parents:
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   177
            {
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   178
            iHeadIndex = 0;
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   179
            }
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   180
        
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   181
        for(TInt i = 0; i < iTailIndexArray.Count(); i++)
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parents:
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   182
            {
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   183
            UpdateDataAvailable(*(iTailIndexArray[i]), ETrue);
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   184
            }
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   185
        }
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parents:
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   186
    else
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parents:
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   187
        {
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   188
        // Nothing to do when count is zero
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   189
        }
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parents:
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   190
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   191
    iRequestedFreeBlockLength = 0;
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parents:
diff changeset
   192
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   193
    DEBUG_PRINT_BUFFER;
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   194
    }
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parents:
diff changeset
   195
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parents:
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   196
// ---------------------------------------------------------------------------
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parents:
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   197
// Cancels any outstanding free block request
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parents:
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   198
// ---------------------------------------------------------------------------
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parents:
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   199
//
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   200
void CSensrvChannelBuffer::CancelFreeBlock()
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parents:
diff changeset
   201
    {
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parents:
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   202
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::CancelFreeBlock()" ) ) );
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parents:
diff changeset
   203
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parents:
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   204
    iRequestedFreeBlockLength = 0;
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parents:
diff changeset
   205
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parents:
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   206
    DEBUG_PRINT_BUFFER;
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parents:
diff changeset
   207
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parents:
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   208
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::CancelFreeBlock - return" ) ) );
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parents:
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   209
    }
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parents:
diff changeset
   210
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parents:
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   211
// ---------------------------------------------------------------------------
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parents:
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   212
// Adds a listener tail index
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parents:
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   213
// ---------------------------------------------------------------------------
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parents:
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   214
//
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parents:
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   215
TInt CSensrvChannelBuffer::AddListener(CSensrvChannelListener* aListener,
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parents:
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   216
                                       TSensrvTailIndexItem*& aTailItem,
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parents:
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   217
                                       CSensrvChannelListener::TSensrvChannelListenerState aState)
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parents:
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   218
    {
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parents:
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   219
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::AddListener(aListener: 0x%x, <retval>, aState: %d)" ), aListener, aState ) );
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parents:
diff changeset
   220
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parents:
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   221
    __ASSERT_ALWAYS(aListener, User::Panic(KSensrvPanicCategory, ESensrvPanicNullListener));
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    __ASSERT_ALWAYS(GetTailIndex(aListener) == KErrNotFound, User::Panic(KSensrvPanicCategory, ESensrvPanicDuplicateListener));
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    aTailItem = new TSensrvTailIndexItem(aListener);
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    TInt err(KErrNoMemory);
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parents:
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   227
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   228
    if (aTailItem)
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   229
        {
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   230
        if (aState == CSensrvChannelListener::EChannelListenerStateDataListening)
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parents:
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            {
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   232
            // If no outstanding request for data block (i.e. first listener),
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   233
            // initialize index to head index.
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   234
            if (iRequestedFreeBlockLength)
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parents:
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   235
                {
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                aTailItem->iDataTailIndex = KSensrvChannelBufferUninitializedTail;
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   237
                }
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   238
            else
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   239
                {
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                aTailItem->iDataTailIndex = iHeadIndex;
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   241
                }
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            }
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        else if (aState == CSensrvChannelListener::EChannelListenerStateConditionListening)
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   244
            {
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   245
            // Unlike data, conditions are available immediately, regardless of 
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   246
            // current listening state. Each condition set will individually
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   247
            // be evaluated if it should ignore new data.
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   248
            aTailItem->iConditionTailIndex = iHeadIndex;
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   249
            }
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        else
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   251
            {
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   252
            ERROR_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::AddListener - ERROR: Invalid state: %d" ), aState ) );
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   253
            }
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parents:
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   254
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parents:
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   255
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   256
        err = iTailIndexArray.Append(aTailItem);
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parents:
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   257
        
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   258
        if (err != KErrNone)
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parents:
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   259
            {
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   260
            delete aTailItem;
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   261
            aTailItem = NULL;
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   262
            }
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   263
        }
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parents:
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   264
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::AddListener - return %d, aTailItem: 0x%x" ), err, aTailItem ) );
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   266
   
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    return err;
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   268
    }
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parents:
diff changeset
   269
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   270
// ---------------------------------------------------------------------------
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   271
// Removes a listener tail index
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// ---------------------------------------------------------------------------
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//
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void CSensrvChannelBuffer::RemoveListener(CSensrvChannelListener* aListener)
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    {
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    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::DeleteListener(aListener: 0x%x)" ), aListener ) );
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parents:
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   277
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   278
    __ASSERT_ALWAYS(aListener, User::Panic(KSensrvPanicCategory, ESensrvPanicNullListener));
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   279
    TBool removed(EFalse);
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parents:
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   280
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   281
    for(TInt i = 0; !removed && i < iTailIndexArray.Count(); i++)
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parents:
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   282
        {
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   283
        if (iTailIndexArray[i]->iListener == aListener)
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parents:
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   284
            {
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   285
            delete iTailIndexArray[i];
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parents:
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   286
            iTailIndexArray.Remove(i);
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   287
            removed = ETrue;
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   288
            }
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   289
        }
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parents:
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   290
    
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parents:
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   291
    // Clear requested free block length    
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parents:
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   292
    if( iTailIndexArray.Count() == 0 )
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parents:
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   293
        {
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   294
        CancelFreeBlock();
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parents:
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   295
        }
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parents:
diff changeset
   296
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   297
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::DeleteListener - return (removed: %d)" ), removed ) );
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   298
    }
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parents:
diff changeset
   299
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parents:
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   300
// ---------------------------------------------------------------------------
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parents:
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   301
// Get new data for listener to transaction data item
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parents:
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   302
// ---------------------------------------------------------------------------
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parents:
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   303
//
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parents:
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   304
void CSensrvChannelBuffer::GetMessageData(TSensrvTailIndexItem* aTailItem,
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parents:
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   305
                                          CSensrvChannelListener::TChannelDataMessage& aMessageData,
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parents:
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   306
                                          TInt aCount)
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parents:
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   307
    {
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parents:
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   308
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetMessageData(aCount: %d)" ), aCount ) );
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parents:
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   309
    
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   310
    if( aTailItem == NULL )
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   311
        return;
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   312
    
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parents:
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   313
    TBool done(EFalse);
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parents:
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   314
    TInt actualCount(aCount > aTailItem->iDataAvailable ? aTailItem->iDataAvailable : aCount);
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parents:
diff changeset
   315
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parents:
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   316
    // Get tail item pointer
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parents:
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   317
    TUint8* startPtr = const_cast<TUint8*>(iBuffer->Ptr());
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parents:
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   318
    TUint8* tailPtr = startPtr + aTailItem->iDataTailIndex*iItemSize;
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parents:
diff changeset
   319
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parents:
diff changeset
   320
    TPtrC8* activePart = &aMessageData.iFirstDataPart;
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parents:
diff changeset
   321
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parents:
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   322
    aMessageData.iDataLostCount = aTailItem->iDataLostCount;
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parents:
diff changeset
   323
    
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parents:
diff changeset
   324
    while (!done)
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parents:
diff changeset
   325
        {
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parents:
diff changeset
   326
        TInt available(0);
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parents:
diff changeset
   327
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parents:
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   328
        // Adjust tail index
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parents:
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   329
        if (!aTailItem->iDataAvailable)
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parents:
diff changeset
   330
            {
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parents:
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   331
            // No new data available, do nothing
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parents:
diff changeset
   332
            BUFFER_TRACE((_L("#### No more data available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
            done = ETrue;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
        else if ( aTailItem->iDataTailIndex < iHeadIndex )
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
            // Data available up to head index
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
            available = iHeadIndex - aTailItem->iDataTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
            TInt remainder = actualCount - aMessageData.iDataItemCount;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
            if (remainder < available)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
                available = remainder;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
            BUFFER_TRACE((_L("#### More data was available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
            done = ETrue;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
        else // iTailIndexArray[index].iDataTailIndex >= iHeadIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
            // New data available up to iValidEndIndex and possibly more again from start
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
            // Only possible to get here on first pass.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
            available  = iValidEndIndex - aTailItem->iDataTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
            if (actualCount <= available)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
                available = actualCount;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
                done = ETrue; // No second pass needed
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
                BUFFER_TRACE((_L("#### Just single block of data was available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
            else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
                BUFFER_TRACE((_L("#### Possibly second block of data available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
            } 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
        aTailItem->iDataTailIndex += available;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
        activePart->Set(tailPtr, available*iItemSize);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
        aMessageData.iDataItemCount += available;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
        // Roll tail index over to zero if at end of buffer,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
        // unless valid buffer ends at head index, in which case
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
        // SSY has reserved a block beginning from iValidEndIndex,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
        // and we should wait for new data at current index.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
        if (aTailItem->iDataTailIndex == iValidEndIndex && iValidEndIndex != iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
            aTailItem->iDataTailIndex = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
            tailPtr = startPtr;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
            activePart = &aMessageData.iSecondDataPart;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        UpdateDataAvailable(*aTailItem, EFalse);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
    aTailItem->iDataLostCount = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    DEBUG_PRINT_BUFFER;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetMessageData - return" ) ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
// Get new data for condition listener.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
// Always get all the data available.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
void CSensrvChannelBuffer::GetConditionData(TSensrvTailIndexItem* aTailItem,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
                                            CSensrvChannelListener::TChannelDataParts& aDataParts)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetConditionData" ) ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
    if( aTailItem == NULL )
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
        return;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    TInt actualCount1(0);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    TInt actualCount2(0);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    // Condition data is always cleared at every new data notification, so 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
    // it is unlikely that it ever will build up to more than maximum buffering count,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    // or have two parts, unless SSY thread somehow manages to call BufferFilled twice
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    // or more times in a row without new data handling on server main thread. 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
    // However, it is theoretically possible, so check the available count
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
    // and need for multiple parts.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
    // If further optimization of condition checking is required, this possibility can 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
    // probably be quite safely ignored and second data part gotten rid of.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
    if (!aTailItem->iConditionDataAvailable)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
        // No new data available, do nothing
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
        BUFFER_TRACE((_L("#### No more condition data available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
        }        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
    else if (aTailItem->iConditionTailIndex >= iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
        // Condition tail after (or at) head, so get up to end of the buffer
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
        // and again from the beginning up to the head
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
        actualCount1 = iValidEndIndex - aTailItem->iConditionTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
        actualCount2 = iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
        BUFFER_TRACE((_L("#### Two parts of condition data available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
    else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
        // Condition tail before head, so get up to head
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        actualCount1 = iHeadIndex - aTailItem->iConditionTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
        BUFFER_TRACE((_L("#### One part of condition data available")));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    // Get data parts
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
    TUint8* startPtr = const_cast<TUint8*>(iBuffer->Ptr());
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
    TUint8* tailPtr = startPtr + aTailItem->iConditionTailIndex*iItemSize;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
    aDataParts.iFirstDataPart.Set(tailPtr, actualCount1*iItemSize);   
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
    aDataParts.iSecondDataPart.Set(startPtr, actualCount2*iItemSize);        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
    // Reset tail
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
    aTailItem->iConditionTailIndex = iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
    aTailItem->iConditionDataAvailable = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
    DEBUG_PRINT_BUFFER;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetConditionData - return" ) ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
// Invalidates range of items starting from head index.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
// Adjusts valid and tail indexes accordingly.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
void CSensrvChannelBuffer::InvalidateRange(TInt aCount)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::InvalidateRange(aCount: %d)" ), aCount ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
    TInt invalidEnd(iHeadIndex+aCount);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
    // Data loss occurs for items between iHeadIndex and invalidIndex,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
    // but only up to iValidEndIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
    TInt dataLossIndex(0);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
    if (invalidEnd > iValidEndIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
        dataLossIndex = iValidEndIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
    else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
        dataLossIndex = invalidEnd;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
    // Update tail indexes and data lost for tail indexes in invalidated area
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
    for(TInt i = 0; i < iTailIndexArray.Count(); i++)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
        if (   iTailIndexArray[i]->iDataAvailable 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
            && iTailIndexArray[i]->iDataTailIndex >= iHeadIndex 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
            && iTailIndexArray[i]->iDataTailIndex < invalidEnd)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
            // Indicate missed data
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
            iTailIndexArray[i]->iDataLostCount += dataLossIndex - iTailIndexArray[i]->iDataTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
     
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
            // Move tail to end of invalid range
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
            if (invalidEnd >= iValidEndIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
                // Roll tail to zero index at end of valid buffer.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
                iTailIndexArray[i]->iDataTailIndex = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
            else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
                iTailIndexArray[i]->iDataTailIndex = invalidEnd;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
            
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
            // It is necessary to update available amount after invalidation ate some of it.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
            UpdateDataAvailable(*(iTailIndexArray[i]), EFalse);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
        else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
            // Do not adjust, as tail is before head, at head (with no unread data),
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
            // or beyond invalidation range.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
            // -> It cannot be affected by the invalidation
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
        // Update condition tail index. Should very rarely if ever come here.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
        // Only possible if SSY thread is able to make multiple buffer fills
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
        // before server gets to handle new data available.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
        if (   iTailIndexArray[i]->iConditionDataAvailable 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
            && iTailIndexArray[i]->iConditionTailIndex >= iHeadIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
            && iTailIndexArray[i]->iConditionTailIndex < invalidEnd )
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
            if (invalidEnd >= iValidEndIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
                // Roll tail to zero index at end of valid buffer.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
                iTailIndexArray[i]->iConditionTailIndex = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
            else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
                iTailIndexArray[i]->iConditionTailIndex = invalidEnd;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
            
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
            // It is necessary to update available amount after invalidation ate some of it.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
            UpdateDataAvailable(*(iTailIndexArray[i]), EFalse);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
        else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
            // Do not adjust, as tail is before head, at head (with no unread data),
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
            // or beyond invalidation range.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
            // -> It cannot be affected by the invalidation
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
    // Valid data ends at head index, unless it was beyond invalidated range.    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
    if (invalidEnd >= iValidEndIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
        iValidEndIndex = iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::InvalidateRange - return" ) ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
// Checks how much new data is available for listener.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
// The data available is iHeadIndex - iDataTailIndex if iHeadIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
// is larger than iTailIndex, or iBufferLength - iDataTailIndex + iHeadIndex,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
// if iHeadIndex is smaller than iTailIndex.
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
void CSensrvChannelBuffer::UpdateDataAvailable(TSensrvTailIndexItem& aTailItem,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
                                               TBool aMoreData)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::UpdateDataAvailable(aTailItem.iListener: 0x%x, aMoreData: %d)" ), aTailItem.iListener, aMoreData ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
    // Update data available
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
    if (aTailItem.iDataTailIndex != KSensrvChannelBufferUnusedTail)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
        if (aTailItem.iDataTailIndex == KSensrvChannelBufferUninitializedTail)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
            aTailItem.iDataAvailable = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
            aTailItem.iDataTailIndex = iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
        else if (aTailItem.iDataTailIndex == iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
            if (aMoreData)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
                // The amount of available data increased with this update;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
                // being at head index means that buffer is full
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
                aTailItem.iDataAvailable = iValidEndIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
            else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
                // The amount of data potentially decreased with this update;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
                // being at headindex means there is no data available
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
                aTailItem.iDataAvailable = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
        else if (aTailItem.iDataTailIndex < iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
            aTailItem.iDataAvailable = iHeadIndex - aTailItem.iDataTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
        else // aTailItem.iDataTailIndex > iHeadIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
            aTailItem.iDataAvailable = iValidEndIndex - aTailItem.iDataTailIndex + iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
            }    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
    // Update condition data available
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
    if (aTailItem.iConditionTailIndex != KSensrvChannelBufferUnusedTail)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
        if (aTailItem.iConditionTailIndex == KSensrvChannelBufferUninitializedTail)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
            aTailItem.iConditionDataAvailable = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
            aTailItem.iConditionTailIndex = iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
        else if (aTailItem.iConditionTailIndex == iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
            if (aMoreData)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
                // The amount of available data increased with this update;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
                // being at head index means that buffer is full
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
                aTailItem.iConditionDataAvailable = iValidEndIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
            else
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
                {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
                // The amount of data potentially decreased with this update;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
                // being at headindex means there is no data available
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
                aTailItem.iConditionDataAvailable = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
                }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
        else if (aTailItem.iConditionTailIndex < iHeadIndex)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
            aTailItem.iConditionDataAvailable = iHeadIndex - aTailItem.iConditionTailIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
        else // aTailItem.iConditionTailIndex > iHeadIndex
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   614
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   615
            aTailItem.iConditionDataAvailable = iValidEndIndex - aTailItem.iConditionTailIndex + iHeadIndex;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   616
            }    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::UpdateDataAvailable - return. Data available: %d" ), aTailItem.iDataAvailable ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
// Returns tail index for listener
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
TInt CSensrvChannelBuffer::GetTailIndex(CSensrvChannelListener* aListener)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetTailIndex(aListener: 0x%x)" ), aListener ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
    TInt index(0);
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
    for(TInt i = 0; !index && i < iTailIndexArray.Count(); i++)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
        if (iTailIndexArray[i]->iListener == aListener)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
            {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
            index = i;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
            }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
    if (!index)        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
        index = KErrNotFound;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetTailIndex - return %d" ), index ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
    return index;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   650
#ifdef BUFFER_TRACE_DEBUG        
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   651
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   652
// Prints out buffer details with RDebug
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   653
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   654
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   655
void CSensrvChannelBuffer::DebugPrintBuffer()
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   656
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   657
    BUFFER_TRACE((_L("#### iHeadIndex: %d, iValidEndIndex: %d, iRequestedFreeBlockLength: %d"), iHeadIndex, iValidEndIndex, iRequestedFreeBlockLength));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   658
    for(TInt i = 0; i < iTailIndexArray.Count(); i++)
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   659
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   660
        BUFFER_TRACE((_L("#### iListener: 0x%x, iDataTailIndex: %d, iConditionTailIndex: %d, iDataLostCount: %d, iDataAvailable: %d, iConditionDataAvailable: %d"), 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   661
                      iTailIndexArray[i]->iListener,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   662
                      iTailIndexArray[i]->iDataTailIndex,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   663
                      iTailIndexArray[i]->iConditionTailIndex,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   664
                      iTailIndexArray[i]->iDataLostCount,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   665
                      iTailIndexArray[i]->iDataAvailable,
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   666
                      iTailIndexArray[i]->iConditionDataAvailable));
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   667
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   668
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   669
#endif // BUFFER_TRACE_DEBUG
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   670
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   671
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   672
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   673
// Get the initial data for listener to transaction data item
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   674
// ---------------------------------------------------------------------------
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   675
//
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   676
void CSensrvChannelBuffer::GetInitialMessageData( CSensrvChannelListener::TChannelDataMessage& aMessageData )
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   677
    {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   678
    COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvChannelBuffer::GetInitialMessageData iLatestWrittenItemIndex %d" ), 
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   679
        iLatestWrittenItemIndex ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   680
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   681
    aMessageData.iDataItemCount = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   682
    aMessageData.iDataLostCount = 0;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   683
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   684
    if ( iLatestWrittenItemIndex >= 0 )
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   685
        {
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   686
        TUint8* itemPtr = const_cast<TUint8*>( iBuffer->Ptr() ) + iLatestWrittenItemIndex * iItemSize;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   687
        aMessageData.iFirstDataPart.Set( itemPtr, iItemSize );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   688
        aMessageData.iSecondDataPart.Set( KNullDesC8 );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   689
        aMessageData.iDataItemCount = 1;
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   690
        }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   691
    
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   692
    COMPONENT_TRACE( _L( "Sensor Server - CSensrvChannelBuffer::GetInitialMessageData - return" ) );
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   693
    }
4e1aa6a622a0 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   694