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/****************************************************************************
**
** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtSerialPort module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "slavethread.h"
#include <QtSerialPort/QSerialPort>
#include <QTime>
QT_USE_NAMESPACE
SlaveThread::SlaveThread(QObject *parent)
: QThread(parent), waitTimeout(0), quit(false)
{
}
SlaveThread::~SlaveThread()
{
mutex.lock();
quit = true;
mutex.unlock();
wait();
}
void SlaveThread::startSlave(const QString &portName, int waitTimeout, const QString &response)
{
QMutexLocker locker(&mutex);
this->portName = portName;
this->waitTimeout = waitTimeout;
this->response = response;
if (!isRunning())
start();
}
void SlaveThread::run()
{
bool currentPortNameChanged = false;
mutex.lock();
QString currentPortName;
if (currentPortName != portName) {
currentPortName = portName;
currentPortNameChanged = true;
}
int currentWaitTimeout = waitTimeout;
QString currentRespone = response;
mutex.unlock();
QSerialPort serial;
while (!quit) {
if (currentPortNameChanged) {
serial.close();
serial.setPortName(currentPortName);
if (!serial.open(QIODevice::ReadWrite)) {
emit error(tr("Can't open %1, error code %2")
.arg(portName).arg(serial.error()));
return;
}
}
if (serial.waitForReadyRead(currentWaitTimeout)) {
// read all request
QByteArray requestData = serial.readAll();
while (serial.waitForReadyRead(10))
requestData += serial.readAll();
// write all response
QByteArray responseData = currentRespone.toLocal8Bit();
serial.write(responseData);
if (serial.waitForBytesWritten(waitTimeout)) {
QString request(requestData);
emit this->request(request);
} else {
emit timeout(tr("Wait write response timeout %1")
.arg(QTime::currentTime().toString()));
}
} else {
emit timeout(tr("Wait read request timeout %1")
.arg(QTime::currentTime().toString()));
}
mutex.lock();
if (currentPortName != portName) {
currentPortName = portName;
currentPortNameChanged = true;
} else {
currentPortNameChanged = false;
}
currentWaitTimeout = waitTimeout;
currentRespone = response;
mutex.unlock();
}
}
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