New upstream version 8.1.0

mon/source/app/SignalHandler.cpp

@@ -0,0 +1,49 @@
+#include "SignalHandler.h"
+
+#include <common/app/log/Logger.h>
+#include <app/App.h>
+
+#include <csignal>
+
+App* SignalHandler::app = nullptr;
+
+void SignalHandler::registerSignalHandler(App* app)
+{
+   SignalHandler::app = app;
+   signal(SIGINT, SignalHandler::handle);
+   signal(SIGTERM, SignalHandler::handle);
+}
+
+
+void SignalHandler::handle(int sig)
+{
+   // reset signal handling to default
+   signal(sig, SIG_DFL);
+
+   if (Logger::isInitialized())
+   {
+      switch(sig)
+      {
+         case SIGINT:
+         {
+            LOG(GENERAL, CRITICAL, "Received a SIGINT. Shutting down...");
+         } break;
+
+         case SIGTERM:
+         {
+            LOG(GENERAL, CRITICAL, "Received a SIGTERM. Shutting down...");
+         } break;
+
+         default:
+         {
+            // shouldn't happen
+            LOG(GENERAL, CRITICAL, "Received an unknown signal. Shutting down...");
+         } break;
+      }
+   }
+
+   if (app != nullptr)
+   {
+      app->stopComponents();
+   }
+}