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/*
* ConsoleWaitReader
*
* This application is part of the examples on the use of the library QSerialDevice.
*
* ConsoleWaitReader - a test console application to read data from the port using the method
* of expectations waitForReadyRead().
*
* Copyright (C) 2011 Denis Shienkov
*
* Contact Denis Shienkov:
* e-mail: <scapig2@yandex.ru>
* ICQ: 321789831
*/
#include <iostream>
#include <QtCore/QCoreApplication>
#include "serialport.h"
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
// 1. First - create an instance of an object.
SerialPort port;
char inbuf[30];
std::cout << "Please enter serial device name,\n"
"specific by OS, example\n"
"- in Windows: COMn\n"
"- in GNU/Linux: ttyXYZn\n"
":";
std::cin >> inbuf;
// 2. Second - set the device name.
port.setPort(QString(inbuf));
std::cout << "The port will be opened in read-only mode (QIODevice::ReadOnly).\n"
"But you can choose to buffered or not (QIODevice::Unbuffered).\n"
"To understand what is the difference - try to change these modes!\n"
"Disable buffering [y/N] ?:";
std::cin >> inbuf;
QIODevice::OpenMode mode = QIODevice::ReadOnly;
if (inbuf[0] == 'y')
mode |= QIODevice::Unbuffered;
// 3. Third - open the device.
if (port.open(mode)) {
// 4. Fourth - now you can configure it (only after successfully opened!).
if (port.setRate(115200) && port.setDataBits(SerialPort::Data8)
&& port.setParity(SerialPort::NoParity) && port.setStopBits(SerialPort::OneStop)
&& port.setFlowControl(SerialPort::NoFlowControl)) {
int msecs = 0;
std::cout << "Please enter wait timeout for ready read, msec: ";
std::cin >> msecs;
int len = 0;
std::cout << "Please enter len data for read, bytes: ";
std::cin >> len;
// 5. Fifth - you can now read/write device, or further modify its settings, etc.
while (1) {
std::cout << "Now starting wait data ..." << std::endl;
if ((port.bytesAvailable() > 0) || port.waitForReadyRead(msecs)) {
QByteArray data = port.read(len);
std::cout << "Readed " << data.size() << " bytes" << std::endl;
} else {
std::cout << "Wait timeout expired." << std::endl;
}
}
} else {
std::cout << "Configure " << port.portName().toLocal8Bit().constData() << " fail.";
port.close();
}
} else {
std::cout << "Open " << port.portName().toLocal8Bit().constData() << " fail.";
}
return app.exec();
}
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