What is, when I ignore the ready read? Has the internal buffer a max size? Because at the moment I have a memory leak and maybe it comes from that?
Martin Am Fr., 5. Apr. 2019 um 21:12 Uhr schrieb Konstantin Shegunov < kshegu...@gmail.com>: > On Thu, Apr 4, 2019 at 6:42 PM Jérôme Godbout <godbo...@amotus.ca> wrote: > >> You jus did the same loop into your slot, the function I did made can be >> called as slot to the connect you just told, I agree the >> serial_port->waitForReadyRead(5); is not necessary, just often the >> transmission have partial or bunch of data by small burst (USB VCOM) and >> was handy for me, but it is not ncessary in any way. >> > A similar loop yes, however your loop goes until there's something to read > on the port, mine is run a few times only when the port already has some > information pending in its buffer. The QSerialPort class already knows if > data has arrived and buffers it*, so what would be the point to loop over > the port when there's no data? When you talk with someone do you ask every > 5ms if [s]he has something to say to you? I really doubt it. You'd normally > just wait for something to be said to decide if and how to respond to it. > >> Side note: ReadLines made it less general purpose, you will need a >> protocol that use endline to signal end of message which is not always the >> case. >> > Involving realistic protocol handling is another kettle of fish. It would > require much more thought and effort and is beyond the scope of what was > asked initially. > > * Unless it's in unbuffered mode, as Thiago already noted. > >> _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest >
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