1/****************************************************************************
2**
3** Copyright (C) 2013 Laszlo Papp <lpapp@kde.org>
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtSerialPort module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include <QCoreApplication>
52#include <QFile>
53#include <QSerialPort>
54#include <QStringList>
55#include <QTextStream>
56
57int main(int argc, char *argv[])
58{
59 QCoreApplication coreApplication(argc, argv);
60 const int argumentCount = QCoreApplication::arguments().size();
61 const QStringList argumentList = QCoreApplication::arguments();
62
63 QTextStream standardOutput(stdout);
64
65 if (argumentCount == 1) {
66 standardOutput << QObject::tr(s: "Usage: %1 <serialportname> [baudrate]")
67 .arg(a: argumentList.first()) << "\n";
68 return 1;
69 }
70
71 QSerialPort serialPort;
72 const QString serialPortName = argumentList.at(i: 1);
73 serialPort.setPortName(serialPortName);
74
75 const int serialPortBaudRate = (argumentCount > 2)
76 ? argumentList.at(i: 2).toInt() : QSerialPort::Baud9600;
77 serialPort.setBaudRate(baudRate: serialPortBaudRate);
78
79 if (!serialPort.open(mode: QIODevice::WriteOnly)) {
80 standardOutput << QObject::tr(s: "Failed to open port %1, error: %2")
81 .arg(a: serialPortName).arg(a: serialPort.errorString())
82 << "\n";
83 return 1;
84 }
85
86 QFile dataFile;
87 if (!dataFile.open(stdin, ioFlags: QIODevice::ReadOnly)) {
88 standardOutput << QObject::tr(s: "Failed to open stdin for reading")
89 << "\n";
90 return 1;
91 }
92
93 QByteArray writeData(dataFile.readAll());
94 dataFile.close();
95
96 if (writeData.isEmpty()) {
97 standardOutput << QObject::tr(s: "Either no data was currently available on "
98 "the standard input for reading, or an error "
99 "occurred for port %1, error: %2")
100 .arg(a: serialPortName).arg(a: serialPort.errorString())
101 << "\n";
102 return 1;
103 }
104
105 const qint64 bytesWritten = serialPort.write(data: writeData);
106
107 if (bytesWritten == -1) {
108 standardOutput << QObject::tr(s: "Failed to write the data to port %1, error: %2")
109 .arg(a: serialPortName).arg(a: serialPort.errorString())
110 << "\n";
111 return 1;
112 } else if (bytesWritten != writeData.size()) {
113 standardOutput << QObject::tr(s: "Failed to write all the data to port %1, error: %2")
114 .arg(a: serialPortName).arg(a: serialPort.errorString())
115 << "\n";
116 return 1;
117 } else if (!serialPort.waitForBytesWritten(msecs: 5000)) {
118 standardOutput << QObject::tr(s: "Operation timed out or an error "
119 "occurred for port %1, error: %2")
120 .arg(a: serialPortName).arg(a: serialPort.errorString())
121 << "\n";
122 return 1;
123 }
124
125 standardOutput << QObject::tr(s: "Data successfully sent to port %1")
126 .arg(a: serialPortName)
127 << "\n";
128
129 return 0;
130}
131

source code of qtserialport/examples/serialport/cwritersync/main.cpp