loadgen/engine/src/loadgen_bluetooth.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 15:53:02 +0300
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/*
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* Copyright (c) 2010 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: 
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*
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*/
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// INCLUDE FILES
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#include "loadgen_bluetooth.h"
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#include "loadgen_utils.h"
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#include "loadgen.hrh"
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#include "loadgen_traces.h"
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#include <loadgen.rsg>
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#include <e32hal.h>
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#include <u32hal.h>
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#include <e32math.h>
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#include <eikenv.h>
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#include <btserversdkcrkeys.h>
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#include <btnotifierapi.h>
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#include <btpm.h>
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_LIT(KThreadName, "Bluetooth %d");
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_LIT(KBTLinkManagerStr, "BTLinkManager");
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const TInt KDefaultStart = 50;
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const TInt KDefaultPeriod = 5000000;
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// ===================================== MEMBER FUNCTIONS =====================================
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CBluetooth* CBluetooth::NewL(TBluetoothAttributes& aAttributes, TInt aReferenceNumber)
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    {
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    CBluetooth* self = new(ELeave) CBluetooth(aAttributes, aReferenceNumber);
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    CleanupStack::PushL(self);
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    TRAPD(err, self->ConstructL());
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    if( err != KErrNone )
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        {
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        User::Leave(err);
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        }
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    CleanupStack::Pop(self);
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    return self;    
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    }
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// --------------------------------------------------------------------------------------------
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CBluetooth::~CBluetooth()
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    {
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    Close();
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    }
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// --------------------------------------------------------------------------------------------
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CBluetooth::CBluetooth(TBluetoothAttributes& aAttributes, TInt aReferenceNumber) : iAttributes(aAttributes)
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    {
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    iAttributes.iId = aReferenceNumber;
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::ConstructL()
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    {    
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    CLoadBase::ConstructL();
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    iType = ELoadGenCmdNewLoadBluetooth;
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    InitializeBluetoothL();
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    TBuf<64> threadName;
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    threadName.Format(KThreadName, iAttributes.iId);
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    // create a thread
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    User::LeaveIfError(iThread.Create(threadName, ThreadFunction, KDefaultStackSize*2, KMinHeapSize, 1024*KMinHeapSize, (TAny*) &iAttributes ));
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    // set priority of the thread
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    SetPriority();
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    iState = ELoadStateConstructed;
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    }
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// --------------------------------------------------------------------------------------------
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TInt CBluetooth::ThreadFunction(TAny* aThreadArg)
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    {
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    TInt err = KErrNone;
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    CTrapCleanup* pC = CTrapCleanup::New();
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    CActiveScheduler* pS = new CActiveScheduler;
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    CActiveScheduler::Install(pS);
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    // start generating load, pass pointer to arguments
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    GenerateLoad(*((TBluetoothAttributes*) aThreadArg));
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    delete pS;
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    delete pC;
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    return err;
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::GenerateLoad(TBluetoothAttributes& aAttributes)
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    {    
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    CBTManager* btManager = 0;
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    TRAPD(err, btManager = CBTManager::NewL(aAttributes));
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    if (err == KErrNone) CActiveScheduler::Start();
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    delete btManager;    
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::Resume()
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    {    
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    CLoadBase::Resume();    
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    iThread.Resume();
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::Suspend()
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    {
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    CLoadBase::Suspend();    
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    iThread.Suspend();
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::SetPriority()
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    {
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    CLoadBase::SetPriority();    
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    iThread.SetPriority(CLoadGenUtils::SettingItemToThreadPriority(iAttributes.iPriority));
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::Close()
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    {
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    LOGSTRING2("LoadGen: CBluetooth::~CBluetooth() - State: %d", iState);
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    if( iState != ELoadStateInvalid )
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        {
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        CLoadBase::Close();        
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        // kill the thread immediately
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        iThread.Kill(0);
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        iThread.Close();
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        }
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    }
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// --------------------------------------------------------------------------------------------
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TPtrC CBluetooth::Description()
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    {
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    TBuf<256> buf;
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    TBuf<16> prioBuf;
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    CLoadGenUtils::SettingItemToThreadDescription(iAttributes.iPriority, prioBuf);
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    _LIT(KBluetoothEntry, "[%d] Bluetooth prio=%S idle=%dms random=%d%%");
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    buf.Format(KBluetoothEntry, iAttributes.iId, &prioBuf, iAttributes.iIdle, iAttributes.iRandomVariance);
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    return TPtrC(buf);
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    }
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// --------------------------------------------------------------------------------------------
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void CBluetooth::InitializeBluetoothL()
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    {
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    // Create central repository for checking and setting bluetooth power state    
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    CRepository* btPowerStateCRepo = CRepository::NewL(KCRUidBluetoothPowerState);
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    // Check if the BT is already turned on:    
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    TInt btPowerState = 0;
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    btPowerStateCRepo->Get(KBTPowerState, btPowerState);
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    delete btPowerStateCRepo;
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    btPowerStateCRepo = 0;
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    if(btPowerState == EBTPowerOff)
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        {
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        // Switch bt power on:
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        if (SetBTPowerState(ETrue) == EFalse)
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            {
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            LOGSTRING("LoadGen: Bluetooth could not be switched on");
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            User::Leave(KErrNotReady);
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            }
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        }
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    }
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// --------------------------------------------------------------------------------------------
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TBool CBluetooth::SetBTPowerState(TBool aState)
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    {    
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    // Ask user to turn on the bluetooth device:
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    RNotifier btPowerNotifier;
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    TInt errCode = btPowerNotifier.Connect();
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    TBool retVal = errCode == KErrNone;
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    if( errCode == KErrNone )
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        {
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        TPckgBuf<TBool> powerRequest(aState);
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        TPckgBuf<TBool> powerReply(EFalse);
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        TRequestStatus powerRequestStatus;
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        btPowerNotifier.StartNotifierAndGetResponse(powerRequestStatus, 
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                                                KPowerModeSettingNotifierUid, 
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                                                powerRequest, 
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                                                powerReply);
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        User::WaitForRequest(powerRequestStatus);
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        btPowerNotifier.CancelNotifier(KPowerModeSettingNotifierUid);
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        btPowerNotifier.Close();  
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        if( powerReply() == EFalse )
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            {
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            LOGSTRING("LoadGen: Bluetooth activating cancelled.");
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            }
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        retVal = powerReply();
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        }
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    return retVal; 
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    }
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// --------------------------------------------------------------------------------------------
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CBTManager* CBTManager::NewL(   TBluetoothAttributes& aAttrs)
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    {
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    CBTManager* self = new (ELeave) CBTManager( aAttrs);
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// --------------------------------------------------------------------------------------------
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CBTManager::~CBTManager()
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    {    
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    if (iPeriodicTimer)
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        {
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        iPeriodicTimer->Cancel();
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        delete iPeriodicTimer;
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        }    
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    iHostResolver.Close();        
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    Cancel();
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    }
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   244
 
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// --------------------------------------------------------------------------------------------
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CBTManager::CBTManager( TBluetoothAttributes& aAttrs) 
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: 
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CActive(EPriorityStandard),
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iAttributes(aAttrs)
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    {    
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    }
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   252
 
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// --------------------------------------------------------------------------------------------
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void CBTManager::ConstructL()
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    {
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    // Socket server session initiation:
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    User::LeaveIfError(iSocketServerHnd.Connect());    
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    CActiveScheduler::Add(this);
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    // set the status as pending
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    iStatus = KRequestPending;
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    SetActive();
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    // set the death status pointer point to the request status of this ao
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    iAttributes.iDeathStatus = &iStatus;
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    // start timer    
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    iPeriodicTimer = CPeriodic::NewL(CActive::EPriorityStandard);
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    iPeriodicTimer->Start(KDefaultStart, KDefaultPeriod, TCallBack(PeriodicTimerCallBack, this));
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    }
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// --------------------------------------------------------------------------------------------
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void CBTManager::DoCancel()
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    {
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    LOGSTRING("LoadGen: CBTManager::DoCancel()");    
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    }
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// --------------------------------------------------------------------------------------------
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void CBTManager::RunL()
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    {    
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    // request status has completed by the main thread meaning that we need to stop now
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    CActiveScheduler::Stop();    
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    }
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// --------------------------------------------------------------------------------------------
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TInt CBTManager::StartBTDeviceDiscovery()
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    {
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    TInt retVal = KErrNone; 
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    RThread myThread;
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    // Initialize host resolver      
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    iHostResolver.Close();        
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    TProtocolDesc protocolInfo;
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    retVal = iSocketServerHnd.FindProtocol(KBTLinkManagerStr(), protocolInfo);
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    if( retVal == KErrNone )
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   296
        {
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        retVal = iHostResolver.Open(iSocketServerHnd, protocolInfo.iAddrFamily, protocolInfo.iProtocol);        
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        }
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   299
    
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    if( retVal == KErrNone )
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   301
        {
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        TInquirySockAddr socketAddress;
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        socketAddress.SetIAC( KGIAC );
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   304
        socketAddress.SetAction(KHostResInquiry|KHostResName|KHostResIgnoreCache);
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   305
        retVal = iHostResolver.GetByAddress(socketAddress, iBTNameEntry);        
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        // Loop all discovered devices:
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   307
        while( retVal == KErrNone )        
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   308
            {
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            LOGSTRING3("LoadGen: Thread %S found device: %S", &(myThread.Name()), &(iBTNameEntry().iName) );
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   310
            // Get next device
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            retVal = iHostResolver.Next(iBTNameEntry);            
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   312
            }
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   313
        }
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   314
    
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   315
    // KErrEof is returned when no more devices to loop
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   316
    if( retVal == KErrEof )
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   317
        {
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   318
        retVal = KErrNone;
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diff changeset
   319
        }
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   320
            
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   321
    iPeriodicTimer->Start( CLoadGenUtils::MilliSecondsToMicroSeconds( iAttributes.iIdle,
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   322
                        iAttributes.iRandomVariance ), KDefaultPeriod, 
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   323
                        TCallBack( PeriodicTimerCallBack, this ) );
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   324
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    return retVal;
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   326
    }
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   327
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   328
// --------------------------------------------------------------------------------------------
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   329
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   330
TInt CBTManager::PeriodicTimerCallBack(TAny* aAny)
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   331
    {        
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   332
    CBTManager* self = static_cast<CBTManager*>( aAny );
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   333
    self->iPeriodicTimer->Cancel();
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diff changeset
   334
    // Perform device discovery:
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   335
    self->StartBTDeviceDiscovery();
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   336
    return KErrNone;
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diff changeset
   337
    }
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diff changeset
   338
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   339
// End of File