Qt http get request always returns status code 0 in multi thread mode requests

[umen242]

i have simple request method inside simple http client , that QRunnble worker is invoking all the returners of the request are status 0 , what more i spotted after few tests is, when i give the app to run with 1 thread that is
only 1 url to process its working fine and i get status 200 . i suspect something in my http client code is worng and does not support multi thread mode here is my full httpclient code:

this is the code of the request :

@#ifndef HttpClient
#define HttpClient
#include <QNetworkAccessManager>
#include <QtNetwork>
#include <QUrl>

QT_BEGIN_NAMESPACE
class QSslError;
class QAuthenticator;
class QNetworkReply;
QT_END_NAMESPACE

class HttpClient : public QObject
{
Q_OBJECT
public:
HttpClient(QFile* file,QMutex* mutex);
~HttpClient();
void startRequest(QString& url);
public slots:
#ifndef QT_NO_OPENSSL
void sslErrors(QNetworkReply*,const QList<QSslError> &errors);
#endif
private:
QString m_sUrl;
QUrl m_url;
QNetworkAccessManager* m_networkManager;
QNetworkReply *reply;
int httpGetId;
void HandleNetworkError(QNetworkReply::NetworkError& networkError,
QNetworkReply *networkReply);
};

#endif

---

#include "HttpClient.h"
#include <QMutexLocker>
#include <QTextStream>

HttpClient::HttpClient()
{
m_networkManager = new QNetworkAccessManager(this);
}
HttpClient::~HttpClient()
{
;
}

void HttpClient::startRequest(QString& url)
{
QNetworkRequest request;
request.setUrl(QUrl(url));
QEventLoop loop;
reply = m_networkManager->get(request);
connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
loop.exec();
LOG_MSG("Is UrlAlive?:"+url.toStdString())
QString ApiResponse;
QByteArray data=reply->readAll();
ApiResponse.append(QString::fromUtf8(data));
int iStatusCodeV = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (reply->error()) {
QNetworkReply::NetworkError networkError = reply->error();
HandleNetworkError(networkError,reply);
}
QString s = QString::number(iStatusCodeV);
reply->deleteLater();
reply = 0;

}
void HttpClient::HandleNetworkError(QNetworkReply::NetworkError& networkError,QNetworkReply networkReply)
{
if(networkError != QNetworkReply::NoError)
{
QString err = networkReply->errorString();
LOG_MSG("HttpClient::HandleNetworkError:"+err.toStdString());
}
}
#ifndef QT_NO_OPENSSL
void HttpClient::sslErrors(QNetworkReply,const QList<QSslError> &errors)
{

    reply->ignoreSslErrors();   

}
#endif@

all of this called from QRunnble method that looks like this :

@void ThreadWorker::run()
{
QMutexLocker lock(_m);
startwork();
lock.unlock();

}

void ThreadWorker::startwork()
{
m_pHttpClient = new HttpClient();
//each thread gets unique url
m_pHttpClient->startRequest(m_url);

}@

why its failing all the time?