Why using quint16 or quint32 in QDataStream ?

amir734jj

This is very simple program that act as client of QDataStream which I found this online

I am wondering can someone explain why they used blockSize which is quint16 ?

@ void Client::request()
{
this->blockSize = 0;//unsigned short
this->socket->abort();//clear buffer
this->socket->connectToServer(this->hostLineEdit->text());
}

void Client::read()
{
QDataStream input(socket);

 if (blockSize == 0) {
     if (socket->bytesAvailable() < (int)sizeof(quint16))
         return;
     input >> blockSize;
 }

....
}@

SGaist

Hi,

Base on my experience: because the maximal size of data they will send can be stored in a quint16 and so the client will know how much data it will receive so it can wait to have it all before processing it.

Hope it helps