Udp muuttujien välitykseen prosessien välillä

QByteArray

QDataStream

QUdpSocket

#include "sender.h"

SenderReceiver::SenderReceiver(QObject *parent) :
    QObject(parent)
{
    sendUdpSocket = new QUdpSocket(0);
    receiveUdpSocket = new QUdpSocket(0);
    receiveUdpSocket->bind(45455,QUdpSocket::ShareAddress);
    connect(receiveUdpSocket, SIGNAL(readyRead()), this, SLOT(processPendingDatagrams()));
}

//viestien lahetys
void SenderReceiver::broadcastDatagram(QVector<float> v)
{
    int error,i;
    QByteArray datagram;
    qDebug() << v;
    QDataStream out (&datagram,QIODevice::WriteOnly);
    foreach(float f,v)
   

    //kirjoitetaan udp-viesti, mahdollinen virhe kannattaisi tarkastaa
    error=sendUdpSocket->writeDatagram(datagram.data(), datagram.size(), QHostAddress::Broadcast, 45455);
}

//viestien vastaanotto
void SenderReceiver::processPendingDatagrams()
{
    float f;
    //onko vastaanotettu viesteja
    while (receiveUdpSocket->hasPendingDatagrams()) {
         QByteArray datagram;
         datagram.resize(receiveUdpSocket->pendingDatagramSize());
         receiveUdpSocket->readDatagram(datagram.data(), datagram.size());
         QDataStream in(datagram);
         while (!in.atEnd())

         qDebug() << v2;
         emit sendReceivedData(v2);
     }
}