/*

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

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include "lowmemoryhandler_p.h"

#include "lowmemoryhandler.h"

LowMemoryHandlerPrivate::LowMemoryHandlerPrivate()

    : CActive(EPriorityStandard)

    , iInitialized(EFalse)

{

    CActiveScheduler::Add(this);

    TInt err = iNotifier.Create();

    // TODO: handle err

}

LowMemoryHandlerPrivate::~LowMemoryHandlerPrivate()

{

    Cancel();

    iNotifier.Close();

}

void LowMemoryHandlerPrivate::start()

{

    if (IsActive())

        return;

    TInt err = iNotifier.Logon(iStatus);

    // TODO: handle err

    SetActive();

}

void LowMemoryHandlerPrivate::stop()

{

    Cancel();

}

void LowMemoryHandlerPrivate::DoCancel()

{

    iNotifier.LogonCancel();

}

void LowMemoryHandlerPrivate::RunL()

{

    if (iInitialized == EFalse) {

        iInitialized = ETrue;

    } else {

        TInt changes = iStatus.Int();

        Q_Q(LowMemoryHandler);

        if (changes & EChangesOutOfMemory) {

            emit(q->outOfMemory());

        } else if (changes & EChangesLowMemory) {

            emit(q->lowMemory());

        }

    }

    User::LeaveIfError(iNotifier.Logon(iStatus));

    SetActive();	

}

TInt LowMemoryHandlerPrivate::RunError()

{

    iNotifier.Close();

    return KErrNone;

}