[Interest] Parsing data from serialport

[Martin Marmsoler]

 > 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.macieira at 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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