From 8ae97d5219cf19ea245aa3852fecb99b4ddfa28c Mon Sep 17 00:00:00 2001
From: Ioannis Christoforidis
Date: Wed, 27 Nov 2019 16:39:14 +0100
Subject: generate network interfaces; only selecting one which are up and no
 loopback

---
 src/datasource/networkspeed.cpp |  4 ++--
 src/speedcheck.cpp              | 10 +++++++++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/datasource/networkspeed.cpp b/src/datasource/networkspeed.cpp
index 8888fd4..0ebd26d 100644
--- a/src/datasource/networkspeed.cpp
+++ b/src/datasource/networkspeed.cpp
@@ -1,9 +1,9 @@
 #include "networkspeed.h"
 
-NetworkSpeed::NetworkSpeed() :
+NetworkSpeed::NetworkSpeed(QString iface) :
 	_lastBytes(0),
 	_lastMs(0),
-	_file("/sys/class/net/eth0/statistics/rx_bytes")
+    _file("/sys/class/net/" + iface + "/statistics/rx_bytes")
 {
 	_timer.start();
 }
diff --git a/src/speedcheck.cpp b/src/speedcheck.cpp
index b4dd718..882eeab 100644
--- a/src/speedcheck.cpp
+++ b/src/speedcheck.cpp
@@ -6,6 +6,7 @@
 
 #include <QCoreApplication>
 #include <QMessageBox>
+#include <QNetworkInterface>
 #include <QFile>
 #include <QDebug>
 #include <QTimer>
@@ -17,6 +18,13 @@ SpeedCheck::SpeedCheck(QString fileName)
 	  _fileName(fileName)
 {
 	_ui->setupUi(this);
+    QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
+        foreach (QNetworkInterface iface, interfaces) {
+            if ((iface.flags().testFlag(QNetworkInterface::IsUp)) && !iface.flags().testFlag(QNetworkInterface::IsLoopBack)) {
+                _ui->comboBox->addItem(iface.name());
+            }
+        }
+
 	connect(_ui->btnStart, SIGNAL(clicked(bool)), this, SLOT(startClicked(bool)));
 	connect(_ui->btnQuit, SIGNAL(clicked(bool)), this, SLOT(quitClicked(bool)));
 	_timer.setInterval(200);
@@ -43,7 +51,7 @@ void SpeedCheck::startClicked(bool)
 		return;
 	}
 	_ui->picCpu->setDataSource(new CpuLoad());
-	_ui->picSpeed->setDataSource(new NetworkSpeed());
+    _ui->picSpeed->setDataSource(new NetworkSpeed(_ui->comboBox->currentText()));
 	_ui->btnStart->setDisabled(true);
 	delete _thread;
 	_thread = new CopyThread(file, this);
-- 
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