/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

// INCLUDE FILES

#include "loadgen_keypress.h"

#include "loadgen_utils.h"

#include "loadgen.hrh"

#include <loadgen.rsg>

#include <e32math.h>

_LIT(KThreadName, "KeyPress %d");

const TInt KDefaultStart = 50;

const TInt KDefaultPeriod = 5000000;

// ===================================== MEMBER FUNCTIONS =====================================

CKeyPress* CKeyPress::NewL(TKeyPressAttributes& aAttributes, TInt aReferenceNumber)

    {

    CKeyPress* self = new(ELeave) CKeyPress(aAttributes, aReferenceNumber);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;    

    }

// --------------------------------------------------------------------------------------------

CKeyPress::~CKeyPress()

    {

    Close();

    }

// --------------------------------------------------------------------------------------------

CKeyPress::CKeyPress(TKeyPressAttributes& aAttributes, TInt aReferenceNumber) : iAttributes(aAttributes)

    {

    iAttributes.iId = aReferenceNumber;

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::ConstructL()

    {

    CLoadBase::ConstructL();

    iType = ELoadGenCmdNewLoadKeyPress;

    TBuf<64> threadName;

    threadName.Format(KThreadName, iAttributes.iId);

    // create a thread

    User::LeaveIfError(iThread.Create(threadName, ThreadFunction, KDefaultStackSize*2, KMinHeapSize, 1024*KMinHeapSize, (TAny*) &iAttributes ));

    // set priority of the thread

    SetPriority();

    }

// --------------------------------------------------------------------------------------------

TInt CKeyPress::ThreadFunction(TAny* aThreadArg)

    {

    CTrapCleanup* pC = CTrapCleanup::New();

    CActiveScheduler* pS = new CActiveScheduler;

    CActiveScheduler::Install(pS);

    // start generating load, pass pointer to arguments

    GenerateLoad(*((TKeyPressAttributes*) aThreadArg));

    delete pS;

    delete pC;

    return KErrNone;

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::GenerateLoad(TKeyPressAttributes& aAttributes)

    {

    CKeyPressManager* keyPressManager = NULL;

    TRAPD(err, keyPressManager = CKeyPressManager::NewL(aAttributes));

    if (err == KErrNone) CActiveScheduler::Start();

    delete keyPressManager;

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::Resume()

    {

    CLoadBase::Resume();

    iThread.Resume();

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::Suspend()

    {

    CLoadBase::Suspend();

    iThread.Suspend();

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::SetPriority()

    {

    CLoadBase::SetPriority();

    iThread.SetPriority(CLoadGenUtils::SettingItemToThreadPriority(iAttributes.iPriority));

    }

// --------------------------------------------------------------------------------------------

void CKeyPress::Close()

    {

    CLoadBase::Close();

    if (iThread.ExitReason() == 0) // check if the thread is still alive

        {

        // signal the thread that it needs to close

        iThread.RequestComplete(iAttributes.iDeathStatus, KErrCancel);

        // wait the thread to die

        TRequestStatus waiter;

        iThread.Logon(waiter);

        User::WaitForRequest(waiter);

        iThread.Close();

        }

    }

// --------------------------------------------------------------------------------------------

TPtrC CKeyPress::Description()

    {

    TBuf<256> buf;

    TBuf<16> prioBuf;

    CLoadGenUtils::SettingItemToThreadDescription(iAttributes.iPriority, prioBuf);

    _LIT(KKeyPressEntry, "[%d] KeyPress prio=%S heartbeat=%dms random=%d%%");

    buf.Format(KKeyPressEntry, iAttributes.iId, &prioBuf, iAttributes.iHeartBeat, iAttributes.iRandomVariance);

    return TPtrC(buf);

    }               

// --------------------------------------------------------------------------------------------

// --------------------------------------------------------------------------------------------

CKeyPressManager* CKeyPressManager::NewL(TKeyPressAttributes& aAttributes)

    {

    CKeyPressManager* self = new(ELeave) CKeyPressManager(aAttributes);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// --------------------------------------------------------------------------------------------

CKeyPressManager::CKeyPressManager(TKeyPressAttributes& aAttributes) :

    CActive(EPriorityStandard), iAttributes(aAttributes)

    {

    }

// --------------------------------------------------------------------------------------------

CKeyPressManager::~CKeyPressManager()

    {

    Cancel();

    iWsSession.Close();

    }

// --------------------------------------------------------------------------------------------

void CKeyPressManager::ConstructL()

    {

    CActiveScheduler::Add(this);

    // set the status as pending

    iStatus = KRequestPending;

    SetActive();

    // set the death status pointer point to the request status of this ao

    iAttributes.iDeathStatus = &iStatus;

    // init

    User::LeaveIfError( iWsSession.Connect() );

    // start timer    

    iPeriodicTimer = CPeriodic::NewL(CActive::EPriorityStandard);

    iPeriodicTimer->Start(KDefaultStart, KDefaultPeriod, TCallBack(PeriodicTimerCallBack, this));

    }

// --------------------------------------------------------------------------------------------

void CKeyPressManager::RunL()

    {

    // request status has completed by the main thread meaning that we need to stop now

    CActiveScheduler::Stop();

    }

// --------------------------------------------------------------------------------------------

void CKeyPressManager::DoCancel()

    {

    }

// --------------------------------------------------------------------------------------------

TInt CKeyPressManager::PeriodicTimerCallBack(TAny* aAny)

    {

    CKeyPressManager* self = static_cast<CKeyPressManager*>( aAny );

    self->iPeriodicTimer->Cancel();

    self->SimulateKeyEvent();

    return KErrNone;

    }

// --------------------------------------------------------------------------------------------

void CKeyPressManager::SimulateKeyEvent()

    {

    // generate a random key event from a to z

    TKeyEvent keyEvent;

    keyEvent.iCode = CLoadGenUtils::RandomNumber('a','z');

    keyEvent.iScanCode = keyEvent.iCode - 32;

    keyEvent.iModifiers = 0;

    keyEvent.iRepeats = 0;

    iWsSession.SimulateKeyEvent(keyEvent);

    iWsSession.Flush();

    // call timer

    iPeriodicTimer->Start(CLoadGenUtils::MilliSecondsToMicroSeconds(iAttributes.iHeartBeat, iAttributes.iRandomVariance), KDefaultPeriod, TCallBack(PeriodicTimerCallBack, this));

    }

// --------------------------------------------------------------------------------------------

// End of File