> To be able to roll back, in case your reading from the device didn't
result in
what you wanted or you got an error. See QDataStream.
Ah ok I understand.
So this minimal example
QSerialPort sPort;
sPort.open(QIODevice::ReadOnly);
if(sPort.waitForReadyRead(2000)){
while (!device.atEnd()) {
if (device.canReadLine()) {
newData.push_back(device.readLine());
linesToRead++;
} else {
return;
}
}
...
}
works fine, if I go trough it step by step (maybe, because enouth data
come in). But if I'm to fast it does not work.
If I'm using the signal readyRead I will have the same problem,
because new data come everytime. So I check that in the
readyRead function if a complete line come in, and if no complete line
I return without doing something otherwise I do
something with the data? Is this the right way?
Martin
Thiago Macieira <thiago.macie...@intel.com> schrieb am Di., 2. Apr. 2019,
18:02:
> On Tuesday, 2 April 2019 07:04:03 PDT Martin Marmsoler wrote:
> > Thank you Thiago for your response. But what is transactionstart for?
>
> To be able to roll back, in case your reading from the device didn't
> result in
> what you wanted or you got an error. See QDataStream.
>
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
> Software Architect - Intel System Software Products
>
>
>
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