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3** Copyright (C) 2013 Laszlo Papp <lpapp@kde.org>
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6** This file is part of the QtSerialPort module of the Qt Toolkit.
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50
51#include "serialportwriter.h"
52
53#include <QCoreApplication>
54
55SerialPortWriter::SerialPortWriter(QSerialPort *serialPort, QObject *parent) :
56 QObject(parent),
57 m_serialPort(serialPort),
58 m_standardOutput(stdout)
59{
60 m_timer.setSingleShot(true);
61 connect(sender: m_serialPort, signal: &QSerialPort::bytesWritten,
62 receiver: this, slot: &SerialPortWriter::handleBytesWritten);
63 connect(sender: m_serialPort, signal: &QSerialPort::errorOccurred,
64 receiver: this, slot: &SerialPortWriter::handleError);
65 connect(sender: &m_timer, signal: &QTimer::timeout, receiver: this, slot: &SerialPortWriter::handleTimeout);
66}
67
68void SerialPortWriter::handleBytesWritten(qint64 bytes)
69{
70 m_bytesWritten += bytes;
71 if (m_bytesWritten == m_writeData.size()) {
72 m_bytesWritten = 0;
73 m_standardOutput << QObject::tr(s: "Data successfully sent to port %1")
74 .arg(a: m_serialPort->portName()) << "\n";
75 QCoreApplication::quit();
76 }
77}
78
79void SerialPortWriter::handleTimeout()
80{
81 m_standardOutput << QObject::tr(s: "Operation timed out for port %1, error: %2")
82 .arg(a: m_serialPort->portName())
83 .arg(a: m_serialPort->errorString())
84 << "\n";
85 QCoreApplication::exit(retcode: 1);
86}
87
88void SerialPortWriter::handleError(QSerialPort::SerialPortError serialPortError)
89{
90 if (serialPortError == QSerialPort::WriteError) {
91 m_standardOutput << QObject::tr(s: "An I/O error occurred while writing"
92 " the data to port %1, error: %2")
93 .arg(a: m_serialPort->portName())
94 .arg(a: m_serialPort->errorString())
95 << "\n";
96 QCoreApplication::exit(retcode: 1);
97 }
98}
99
100void SerialPortWriter::write(const QByteArray &writeData)
101{
102 m_writeData = writeData;
103
104 const qint64 bytesWritten = m_serialPort->write(data: writeData);
105
106 if (bytesWritten == -1) {
107 m_standardOutput << QObject::tr(s: "Failed to write the data to port %1, error: %2")
108 .arg(a: m_serialPort->portName())
109 .arg(a: m_serialPort->errorString())
110 << "\n";
111 QCoreApplication::exit(retcode: 1);
112 } else if (bytesWritten != m_writeData.size()) {
113 m_standardOutput << QObject::tr(s: "Failed to write all the data to port %1, error: %2")
114 .arg(a: m_serialPort->portName())
115 .arg(a: m_serialPort->errorString())
116 << "\n";
117 QCoreApplication::exit(retcode: 1);
118 }
119
120 m_timer.start(msec: 5000);
121}
122

source code of qtserialport/examples/serialport/cwriterasync/serialportwriter.cpp