Fix typos

Signed-off-by: Mauricio Vasquez B <mauriciovasquezbernal@gmail.com>

Author: mauriciovasquezbernal

src/polycubed/src/polycubed.cpp

@@ -54,7 +54,7 @@ std::shared_ptr<spdlog::logger> logger;
 // create core instance
 PolycubedCore *core;
 RestServer *restserver;
-int netlink_nofitication_id = -1;
+int netlink_notification_id = -1;
 
 void shutdown() {
   static bool done = false;
@@ -70,9 +70,9 @@ void shutdown() {
     delete restserver;
   }
 
-  if (netlink_nofitication_id != -1) {
+  if (netlink_notification_id != -1) {
     Netlink::getInstance().unregisterObserver(Netlink::Event::LINK_DELETED,
-                                              netlink_nofitication_id);
+                                              netlink_notification_id);
   }
 
   logger->info("polycubed is shutting down. Bye!");
@@ -255,7 +255,7 @@ int main(int argc, char *argv[]) {
   core = new PolycubedCore(base_model);
 
   // register handler to detect interfaces that are deleted
-  netlink_nofitication_id = Netlink::getInstance().registerObserver(
+  netlink_notification_id = Netlink::getInstance().registerObserver(
     Netlink::Event::LINK_DELETED,
     std::bind(&ServiceController::netlink_notification, std::placeholders::_1,
               std::placeholders::_2));

src/polycubed/src/service_controller.cpp

@@ -284,6 +284,12 @@ bool ServiceController::parse_peer_name(const std::string &peer,
   return true;
 }
 
+/*
+ * This function in on charge of setting the peer of ports
+ * connected to netdevs when they are removed.
+ * This function also removes the ExtIface object if this is
+ * not already removed.
+ */
 void ServiceController::netlink_notification(int ifindex,
                                              const std::string &ifname) {
   std::lock_guard<std::mutex> guard(service_ctrl_mutex_);