Implement system load visualization

Implement system load visualization in TaskManager as a separate
tab showing average system load graph basing on the info provided
by the backend.

Change-Id: I81359185516ebb1b6218bfd9ca53f1d76dfddeb4
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/app/taskmanager.cpp b/app/taskmanager.cpp
index ece6d83..5726388 100644
--- a/app/taskmanager.cpp
+++ b/app/taskmanager.cpp
@@ -28,6 +28,11 @@ void TaskManager::onConnected()
 	timer = new QTimer();
 	connect(timer, SIGNAL(timeout()), this, SLOT(query()));
 	timer->start(3000);
+
+	loadAvg();
+	loadAvgTimer = new QTimer();
+	connect(loadAvgTimer, SIGNAL(timeout()), this, SLOT(loadAvg()));
+	loadAvgTimer->start(1000);
 }
 void TaskManager::kill(int tid) {
 	callService("kill_process", QJsonValue(tid));
@@ -37,6 +42,10 @@ void TaskManager::getExtraInfo(int tid) {
 	callService("get_extra_info", QJsonValue(tid));
 }
 
+void TaskManager::loadAvg() {
+	callService("get_load_avg", QJsonValue());
+}
+
 void TaskManager::query() {
 	callService("get_process_list",
 		QJsonValue(QJsonObject({{"processes", QJsonValue()}})));
@@ -71,6 +80,10 @@ void TaskManager::ProcessResponse(Message *message)
 		QJsonObject info = message->replyData()["info"].toObject();
 		ProcessResponseExtraInfo(info);
 	}
+	if (QString::compare(msgType, "loadAvgInfo") == 0) {
+		QJsonObject loadInfo = message->replyData()["loadInfo"].toObject();
+		ProcessResponseLoadAvg(loadInfo);
+	}
 	// more response types to follow
 }
 
@@ -144,3 +157,12 @@ void TaskManager::ProcessResponseExtraInfo(QJsonObject &info)
 
 	emit showProcessInfo(infoString);
 }
+
+void TaskManager::ProcessResponseLoadAvg(QJsonObject &loadInfo)
+{
+	if (loadInfo.size() == 0) {
+		return;
+	}
+
+	emit updateLoadAverage(loadInfo["value"].toDouble());
+}