From d4f10f9fe446da2aff65088e5236d6ffcdd034b5 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 24 Feb 2017 12:33:55 +0100
Subject: initial commit

---
 src/datasource/networkspeed.cpp | 50 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 src/datasource/networkspeed.cpp

(limited to 'src/datasource/networkspeed.cpp')

diff --git a/src/datasource/networkspeed.cpp b/src/datasource/networkspeed.cpp
new file mode 100644
index 0000000..8888fd4
--- /dev/null
+++ b/src/datasource/networkspeed.cpp
@@ -0,0 +1,50 @@
+#include "networkspeed.h"
+
+NetworkSpeed::NetworkSpeed() :
+	_lastBytes(0),
+	_lastMs(0),
+	_file("/sys/class/net/eth0/statistics/rx_bytes")
+{
+	_timer.start();
+}
+
+NetworkSpeed::~NetworkSpeed()
+{
+	// TODO Auto-generated destructor stub
+}
+
+qint64 NetworkSpeed::read()
+{
+	char buffer[500];
+	qint64 ret, now;
+	if (!_file.open(QIODevice::ReadOnly)) {
+		return -1;
+	}
+	now = _timer.elapsed();
+	_file.readLine(buffer, sizeof(buffer));
+	_file.close();
+	QString line(buffer);
+	const qint64 counter = (qint64)line.toLongLong();
+	if (_lastBytes == 0) {
+		ret = 0;
+	} else {
+		ret = counter - _lastBytes;
+	}
+	if (_lastMs < now) {
+		ret = (ret * 1000) / (now - _lastMs);
+	}
+	_lastMs = now;
+	_lastBytes = counter;
+	return ret;
+}
+
+const QList<qint64>& NetworkSpeed::getBars() const
+{
+	static QList<qint64> list = QList<qint64>() << ((qint64)1024 * 1024 * 10);
+	return list;
+}
+
+qint64 NetworkSpeed::getMaximum()
+{
+	return ((qint64)1024 * 1024 * 100);
+}
-- 
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