diff options
author | Laszlo Papp <lpapp@kde.org> | 2013-10-24 13:53:16 +0100 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-10-25 12:30:09 +0200 |
commit | 9f8f2d6dc6f38b54a91f4a3d7ebf4285891005d3 (patch) | |
tree | f0d8b3e566fa71c31fe12ccb6ee67a99119dbb95 /examples/serialport/cwritersync/main.cpp | |
parent | c872f638199575e63d1b18b204da67ce64c9a020 (diff) |
Add a new simple and command line writer example
Change-Id: I5d893d18477790def27bfa1fa051d459a8193db5
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Diffstat (limited to 'examples/serialport/cwritersync/main.cpp')
-rw-r--r-- | examples/serialport/cwritersync/main.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/examples/serialport/cwritersync/main.cpp b/examples/serialport/cwritersync/main.cpp new file mode 100644 index 00000000..756bbff3 --- /dev/null +++ b/examples/serialport/cwritersync/main.cpp @@ -0,0 +1,131 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Laszlo Papp <lpapp@kde.org> +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtSerialPort module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtSerialPort/QSerialPort> + +#include <QTextStream> +#include <QCoreApplication> +#include <QFile> +#include <QStringList> + +QT_USE_NAMESPACE + +int main(int argc, char *argv[]) +{ + QCoreApplication coreApplication(argc, argv); + int argumentCount = QCoreApplication::arguments().size(); + QStringList argumentList = QCoreApplication::arguments(); + + QTextStream standardOutput(stdout); + + if (argumentCount == 1) { + standardOutput << QObject::tr("Usage: %1 <serialportname> [baudrate]").arg(argumentList.first()) << endl; + return 1; + } + + QSerialPort serialPort; + QString serialPortName = argumentList.at(1); + serialPort.setPortName(serialPortName); + + if (!serialPort.open(QIODevice::WriteOnly)) { + standardOutput << QObject::tr("Failed to open port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + int serialPortBaudRate = (argumentCount > 2) ? argumentList.at(2).toInt() : QSerialPort::Baud9600; + if (!serialPort.setBaudRate(serialPortBaudRate)) { + standardOutput << QObject::tr("Failed to set 9600 baud for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + if (!serialPort.setDataBits(QSerialPort::Data8)) { + standardOutput << QObject::tr("Failed to set 8 data bits for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + if (!serialPort.setParity(QSerialPort::NoParity)) { + standardOutput << QObject::tr("Failed to set no parity for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + if (!serialPort.setStopBits(QSerialPort::OneStop)) { + standardOutput << QObject::tr("Failed to set 1 stop bit for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + if (!serialPort.setFlowControl(QSerialPort::NoFlowControl)) { + standardOutput << QObject::tr("Failed to set no flow control for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + QFile dataFile; + if (!dataFile.open(stdin, QIODevice::ReadOnly)) { + standardOutput << QObject::tr("Failed to open stdin for reading") << endl; + return 1; + } + + QByteArray writeData(dataFile.readAll()); + + if (writeData.isEmpty()) { + standardOutput << QObject::tr("Either no data was currently available on the standard input for reading, or an error occurred for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + dataFile.close(); + return 1; + } + + dataFile.close(); + + qint64 bytesWritten = serialPort.write(writeData); + + if (bytesWritten == -1) { + standardOutput << QObject::tr("Failed to write the data to port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } else if (bytesWritten != writeData.size()) { + standardOutput << QObject::tr("Failed to write all the data to port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } else if (!serialPort.waitForBytesWritten(5000)) { + standardOutput << QObject::tr("Operation timed out or an error occurred for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl; + return 1; + } + + standardOutput << QObject::tr("Data successfully sent to port %1").arg(serialPortName) << endl; + + return 0; +} |