1 files changed, 167 insertions, 0 deletions
diff --git a/examples/blockingslave/transactionthread.cpp b/examples/blockingslave/transactionthread.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Denis Shienkov <scapig@yandex.ru>
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtSerialPort module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "transactionthread.h"
+
+#include <serialport.h>
+
+#include <QTime>
+
+QT_USE_NAMESPACE_SERIALPORT
+
+TransactionThread::TransactionThread(QObject *parent)
+    : QThread(parent), waitTimeout(0), quit(false)
+{
+}
+
+TransactionThread::~TransactionThread()
+{
+    mutex.lock();
+    quit = true;
+    mutex.unlock();
+    wait();
+}
+
+void TransactionThread::startNewSlave(const QString &port, int transactionWaitTimeout, const QString &response)
+{
+    QMutexLocker locker(&mutex);
+    portName = port;
+    waitTimeout = transactionWaitTimeout;
+    responseText = response;
+
+    if (!isRunning())
+        start();
+}
+
+void TransactionThread::run()
+{
+    bool currentSerialPortNameChanged = false;
+
+    mutex.lock();
+    QString currentSerialPortName;
+    if (currentSerialPortName != portName) {
+        currentSerialPortName = portName;
+        currentSerialPortNameChanged = true;
+    }
+
+    int currentTransactionWaitTimeout = waitTimeout;
+    QString currentResponseText = responseText;
+    mutex.unlock();
+
+    SerialPort serial;
+
+    while (!quit) {
+
+        if (currentSerialPortNameChanged) {
+            serial.close();
+            serial.setPort(currentSerialPortName);
+
+            if (!serial.open(QIODevice::ReadWrite)) {
+                emit error(tr("Can't open %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+
+            if (!serial.setRate(9600)) {
+                emit error(tr("Can't set rate 9600 baud to port %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+
+            if (!serial.setDataBits(SerialPort::Data8)) {
+                emit error(tr("Can't set 8 data bits to port %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+
+            if (!serial.setParity(SerialPort::NoParity)) {
+                emit error(tr("Can't set no patity to port %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+
+            if (!serial.setStopBits(SerialPort::OneStop)) {
+                emit error(tr("Can't set 1 stop bit to port %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+
+            if (!serial.setFlowControl(SerialPort::NoFlowControl)) {
+                emit error(tr("Can't set no flow control to port %1, error code %2")
+                           .arg(portName).arg(serial.error()));
+                return;
+            }
+        }
+
+        if (serial.waitForReadyRead(currentTransactionWaitTimeout)) {
+
+            // read all request
+            QByteArray requestData = serial.readAll();
+            while (serial.waitForReadyRead(10))
+                requestData += serial.readAll();
+
+            // write all response
+            QByteArray responseData = currentResponseText.toLocal8Bit();
+            serial.write(responseData);
+            if (serial.waitForBytesWritten(waitTimeout)) {
+                QString requestText(requestData);
+                emit request(requestText);
+            } 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 (currentSerialPortName != portName) {
+            currentSerialPortName = portName;
+            currentSerialPortNameChanged = true;
+        } else {
+            currentSerialPortNameChanged = false;
+        }
+        currentTransactionWaitTimeout = waitTimeout;
+        currentResponseText = responseText;
+        mutex.unlock();
+    }
+}