Dlclose fails when using with QNetworkAccessManager on QNX

lseshagiri

Hello,

I am seeing a peculiar issue in my code with respect to dlclose.

Background:
I have created a DownloadManager as part of a plugin on QNX. The DownloadManager downloads a file from a http link that gets passed to it. Once my process completes, I unload the plugin and I see the error: "dlclose failed: Shared objects still referenced". On debugging, I found that the issue seems to be occurring due to the QNetworkAccessManager that is getting created. I have tried directly deleting the QNetworkAccessManager instance as well as using deleteLater() but to no avail. I still keep seeing the same problem.

I have pasted a part of my code below:
@
DownloadFile::DownloadFile()
: m_Manager( NULL ),
m_Reply( NULL ),
m_File( NULL ),
m_DownloadSizeAtPause( 0 )
{
m_Manager = new QNetworkAccessManager();
if( NULL == m_Manager )
{
qDebug() << "Qt Network manager is null";
}

};

/**
    Destructor for DownloadFile
 */
DownloadFile::~DownloadFile&#40;&#41;
{
    if( NULL != m_Reply )
    {
        m_Reply->deleteLater();
        //delete m_Reply;
        m_Reply = NULL;
    }

    if( NULL != m_Manager )
    {
        qDebug() << "Manager not null";
        m_Manager->deleteLater();
        //delete m_Manager;
        m_Manager = NULL;
    }

    if( m_File->isOpen() )
    {
        m_File->close();
    }

    if( NULL != m_File )
    {
        delete m_File;
        m_File = NULL;
    }
};

@

I am currently using Qt5.3.1 on QNX 6.6.
I noticed at http://qt-project.org/wiki/Qt_Status_on_QNX that a dlclose issue has been fixed. I am not sure if this problem is related to the fixed bug in anyway.

Appreciate any pointers to resolve this problem.

Thanks,
LN

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Dlclose fails when using with QNetworkAccessManager on QNX