1 files changed, 116 insertions, 0 deletions
diff --git a/examples/serialport/blockingsender/senderthread.cpp b/examples/serialport/blockingsender/senderthread.cpp
new file mode 100644
index 0000000..055b965
--- /dev/null
+++ b/examples/serialport/blockingsender/senderthread.cpp
@@ -0,0 +1,116 @@
+// Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "senderthread.h"
+
+#include <QSerialPort>
+#include <QTime>
+
+SenderThread::SenderThread(QObject *parent) :
+    QThread(parent)
+{
+}
+
+//! [0]
+SenderThread::~SenderThread()
+{
+    m_mutex.lock();
+    m_quit = true;
+    m_cond.wakeOne();
+    m_mutex.unlock();
+    wait();
+}
+//! [0]
+
+//! [1] //! [2]
+void SenderThread::transaction(const QString &portName, int waitTimeout, const QString &request)
+{
+//! [1]
+    const QMutexLocker locker(&m_mutex);
+    m_portName = portName;
+    m_waitTimeout = waitTimeout;
+    m_request = request;
+//! [3]
+    if (!isRunning())
+        start();
+    else
+        m_cond.wakeOne();
+}
+//! [2] //! [3]
+
+//! [4]
+void SenderThread::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 currentRequest = m_request;
+    m_mutex.unlock();
+//! [5] //! [6]
+    QSerialPort serial;
+
+    if (currentPortName.isEmpty()) {
+        emit error(tr("No port name specified"));
+        return;
+    }
+
+    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;
+            }
+        }
+//! [7] //! [8]
+        // write request
+        const QByteArray requestData = currentRequest.toUtf8();
+        serial.write(requestData);
+        if (serial.waitForBytesWritten(m_waitTimeout)) {
+//! [8] //! [10]
+            // read response
+            if (serial.waitForReadyRead(currentWaitTimeout)) {
+                QByteArray responseData = serial.readAll();
+                while (serial.waitForReadyRead(10))
+                    responseData += serial.readAll();
+
+                const QString response = QString::fromUtf8(responseData);
+//! [12]
+                emit this->response(response);
+//! [10] //! [11] //! [12]
+            } else {
+                emit timeout(tr("Wait read response timeout %1")
+                             .arg(QTime::currentTime().toString()));
+            }
+//! [9] //! [11]
+        } else {
+            emit timeout(tr("Wait write request timeout %1")
+                         .arg(QTime::currentTime().toString()));
+        }
+//! [9]  //! [13]
+        m_mutex.lock();
+        m_cond.wait(&m_mutex);
+        if (currentPortName != m_portName) {
+            currentPortName = m_portName;
+            currentPortNameChanged = true;
+        } else {
+            currentPortNameChanged = false;
+        }
+        currentWaitTimeout = m_waitTimeout;
+        currentRequest = m_request;
+        m_mutex.unlock();
+    }
+//! [13]
+}