QObject: cannot create children for a parent which is in a different thread

Subuday

When I add to my code it causes the error: "QObject: cannot create children for a parent which is in a different thread"

       socket->write("From server: hello world");
       socket->flush();
       socket->waitForBytesWritten();

#include "httpserver.h"

HttpServer::HttpServer(QObject *parent) : QTcpServer(parent)
{
    pool = new QThreadPool(this);
}

HttpServer::~HttpServer()
{
    delete pool;
}

void HttpServer::setStorage(Storage *storage)
{
  this->storage = storage;
}

void HttpServer::startServer()
{
    if(listen(QHostAddress::Any, 1234))
    {
        qDebug() << "Server started";
    }
    else
    {
        qDebug() << "Server: not started";
    }

}

void HttpServer::incomingConnection(qintptr socketDescriptor)
{
    Runnable *task = new Runnable();

    task->setAutoDelete(true);
    task->socketDescriptor = socketDescriptor;
    task->storage = storage;

    pool->start(task);
}

//Runnable

#include "runnable.h"

Runnable::Runnable(QObject *parent) :
    QObject(parent)
{

}

void Runnable::run()
{
    eventLoop = new QEventLoop();
    socket = new QTcpSocket();
    if(socket->setSocketDescriptor(socketDescriptor))
    {
        connect(socket,SIGNAL(connected()),this,SLOT(onConnected()),Qt::QueuedConnection);
        connect(socket,SIGNAL(disconnected()),this,SLOT(onDisconnect()),Qt::QueuedConnection);
        connect(socket,SIGNAL(readyRead()),this,SLOT(onReadyRead()),Qt::QueuedConnection);
    }
    eventLoop->exec();
    delete socket;
    delete eventLoop;
}

void Runnable::onConnected()
{
    qDebug() << "Connected";
}

void Runnable::onDisconnect()
{
    qDebug() << "Disconnected";
    eventLoop->exit();
}

void Runnable::onReadyRead()
{
    parse(socket->readAll());
}

void Runnable::parse(QString httpRequest)
{
    qDebug().noquote()   << httpRequest;
    QRegularExpression methodRegExp("\\b(GET|POST)\\b");
    QRegularExpressionMatch matchMethod = methodRegExp.match(httpRequest);

    if(matchMethod.hasMatch())
    {
        QString method = matchMethod.captured(0);
        if(method == "GET")
        {

        }
        else if(method == "POST")
        {
            QRegularExpression uriRegExp("/(.*?)\\s");
            QRegularExpressionMatch matchURI = uriRegExp.match(httpRequest);

            QString uri = matchURI.captured(0);
            uri.truncate(uri.lastIndexOf(QChar(' ')));
            qDebug() << uri;

            QRegularExpression bodyRegExp("(\\[.*?\\]|\\{.*?\\})");
            QRegularExpressionMatch matchBody = bodyRegExp.match(httpRequest);

            qDebug() << matchBody;

            socket->write("From server: hello world");
            socket->flush();
            socket->waitForBytesWritten();
        }
    }
    else
    {
        qDebug() << "No match";
    }
}

jsulm

@Subuday said in QObject: cannot create children for a parent which is in a different thread:

When I add to my code

Add what?