I am setting up a QUdpSocket and connecting the readyRead() signal to my readDatagrams() method, however when I get into the method and check the socket with hasPendingDatagrams() it never enters my loop, i.e:

Qt Code: 
  1. void Listener::readDatagrams()
  2. {
  3.    while ( m_aSocket->hasPendingDatagrams() )
  4.    {
  5.       // Never gets here
  6.    }
  7. }
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however, if i skip that loop and just read a datagram from the socket I get my data:

Qt Code: 
  1. QByteArray datagram;
  2.     datagram.resize(m_aSocket->pendingDatagramSize());
  3.     QHostAddress sender;
  4.     quint16 senderPort;
  5.  
  6.     m_aSocket->readDatagram(datagram.data(), datagram.size(), &sender, &senderPort);
  7.  
  8.     if ( datagram.size() > 0 )
  9.     {
  10.       // Gets here without loop
  11.     }
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Can anyone help out?