1 files changed, 117 insertions, 0 deletions
diff --git a/src/SerialCom.cpp~ b/src/SerialCom.cpp~
new file mode 100755
index 0000000..0edd712
--- /dev/null
+++ b/src/SerialCom.cpp~
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2016 Dhiraj Salian
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
+ */
+#include "SerialCom.hpp"
+#include <QtSerialPort/QSerialPort>
+#include <QTime>
+
+QT_USE_NAMESPACE
+
+/**
+Constructor:
+*/
+SerialCom::SerialCom(QObject *parent)
+    : QThread(parent), waitTime(0), quit(false)
+{
+}
+
+/**
+Destructor:
+*/
+SerialCom::~SerialCom()
+{
+    mutex.lock();
+    quit = true;
+    cond.wakeOne();
+    mutex.unlock();
+    wait();
+}
+
+/**
+sendRequest(const QString, int, const QString):
+	Send a request to arduino
+*/
+void SerialCom::sendRequest(const QString &port, int waitTime, const QString &request)
+{
+    QMutexLocker locker(&mutex);
+    this->port = port;
+    this->waitTime = waitTime;
+    this->request = request;
+    if (!isRunning())
+        start();
+    else
+        cond.wakeOne();
+}
+
+
+void SerialCom::run()
+{
+    bool myPortNameChanged = false;
+
+    mutex.lock();
+    QString myPortName;
+    if (myPortName != port) {
+        myPortName = port;
+        myPortNameChanged = true;
+    }
+
+    int myWaitTimeout = waitTime;
+    QString myRequest = request;
+    mutex.unlock();
+    QSerialPort serial;
+
+    while (!quit) {
+        if (myPortNameChanged) {
+            serial.close();
+            serial.setPortName(myPortName);
+
+            if (!serial.open(QIODevice::ReadWrite)) {
+                emit error(tr("Can't open %1, error code %2")
+                           .arg(port).arg(serial.error()));
+                return;
+            }
+        }
+        QByteArray requestData = myRequest.toLocal8Bit();
+        serial.write(requestData);
+        if (serial.waitForBytesWritten(waitTime)) {
+            if (serial.waitForReadyRead(myWaitTimeout)) {
+                QByteArray responseData = serial.readAll();
+                while (serial.waitForReadyRead(10))
+                    responseData += serial.readAll();
+                QString response(responseData);
+                emit this->response(response);
+            } else {
+                emit timeout(tr("Wait Read Request Timed Out %1")
+                             .arg(QTime::currentTime().toString()));
+            }
+        } else {
+            emit timeout(tr("Wait Write Request Timed Out %1")
+                         .arg(QTime::currentTime().toString()));
+        }
+        mutex.lock();
+        cond.wait(&mutex);
+        if (myPortName != port) {
+            myPortName = port;
+            myPortNameChanged = true;
+        } else {
+            myPortNameChanged = false;
+        }
+        myWaitTimeout = waitTime;
+        myRequest = request;
+        mutex.unlock();
+    }
+}