| /**************************************************************************** |
| ** |
| ** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtSerialPort module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** 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 The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
| ** * Redistributions of source code must retain the above copyright |
| ** notice, this list of conditions and the following disclaimer. |
| ** * Redistributions in binary form must reproduce the above copyright |
| ** notice, this list of conditions and the following disclaimer in |
| ** the documentation and/or other materials provided with the |
| ** distribution. |
| ** * Neither the name of The Qt Company Ltd nor the names of its |
| ** contributors may be used to endorse or promote products derived |
| ** from this software without specific prior written permission. |
| ** |
| ** |
| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "slavethread.h" |
| |
| #include <QSerialPort> |
| #include <QTime> |
| |
| SlaveThread::SlaveThread(QObject *parent) : |
| QThread(parent) |
| { |
| } |
| |
| //! [0] |
| SlaveThread::~SlaveThread() |
| { |
| m_mutex.lock(); |
| m_quit = true; |
| m_mutex.unlock(); |
| wait(); |
| } |
| //! [0] |
| |
| //! [1] //! [2] |
| void SlaveThread::startSlave(const QString &portName, int waitTimeout, const QString &response) |
| { |
| //! [1] |
| const QMutexLocker locker(&m_mutex); |
| m_portName = portName; |
| m_waitTimeout = waitTimeout; |
| m_response = response; |
| //! [3] |
| if (!isRunning()) |
| start(); |
| } |
| //! [2] //! [3] |
| |
| //! [4] |
| void SlaveThread::run() |
| { |
| bool currentPortNameChanged = false; |
| |
| m_mutex.lock(); |
| //! [4] //! [5] |
| QString currentPortName; |
| if (currentPortName != m_portName) { |
| currentPortName = m_portName; |
| currentPortNameChanged = true; |
| } |
| |
| int currentWaitTimeout = m_waitTimeout; |
| QString currentRespone = m_response; |
| m_mutex.unlock(); |
| //! [5] //! [6] |
| QSerialPort serial; |
| |
| while (!m_quit) { |
| //![6] //! [7] |
| if (currentPortNameChanged) { |
| serial.close(); |
| serial.setPortName(currentPortName); |
| |
| if (!serial.open(QIODevice::ReadWrite)) { |
| emit error(tr("Can't open %1, error code %2") |
| .arg(m_portName).arg(serial.error())); |
| return; |
| } |
| } |
| |
| if (serial.waitForReadyRead(currentWaitTimeout)) { |
| //! [7] //! [8] |
| // read request |
| QByteArray requestData = serial.readAll(); |
| while (serial.waitForReadyRead(10)) |
| requestData += serial.readAll(); |
| //! [8] //! [10] |
| // write response |
| const QByteArray responseData = currentRespone.toUtf8(); |
| serial.write(responseData); |
| if (serial.waitForBytesWritten(m_waitTimeout)) { |
| const QString request = QString::fromUtf8(requestData); |
| //! [12] |
| emit this->request(request); |
| //! [10] //! [11] //! [12] |
| } else { |
| emit timeout(tr("Wait write response timeout %1") |
| .arg(QTime::currentTime().toString())); |
| } |
| //! [9] //! [11] |
| } else { |
| emit timeout(tr("Wait read request timeout %1") |
| .arg(QTime::currentTime().toString())); |
| } |
| //! [9] //! [13] |
| m_mutex.lock(); |
| if (currentPortName != m_portName) { |
| currentPortName = m_portName; |
| currentPortNameChanged = true; |
| } else { |
| currentPortNameChanged = false; |
| } |
| currentWaitTimeout = m_waitTimeout; |
| currentRespone = m_response; |
| m_mutex.unlock(); |
| } |
| //! [13] |
| } |