don't call functions on nullptr

include/utils/App/App.h

@@ -95,10 +95,9 @@ namespace Archimedes {
                     if(*it == m->getName()) {
                         std::cout << "Module \"" << *it << "\" is already loaded!\n";
                         delete m;
-                        std::cout << "m deleted successfully!\n";
+                        if(h) {
-                        if(h)
                             dlclose(h);
-                        std::cout << "h dlclose successfully!\n";
+                        }
                         return nullptr;
                     }
                 }
@@ -121,7 +120,6 @@ namespace Archimedes {
 
                 bool skip = false;
                 for(auto it : m->deps) {
-                    //std::cout << "Module " << m->getName() << " has dependency " << it.first << std::endl;
                     for(auto s : runOrder) {
                         if(s == it.first) {
                             skip = true;

src/example_apps/MinimalApp/MinimalApp.cpp

@@ -19,10 +19,15 @@ void MinimalApp::run() {
         toClose.clear();
 
         for(auto m : toOpen) {
+            static Archimedes::Module* n;
             if(std::holds_alternative<std::string>(m)) {
-                load(std::get<std::string>(m))->onLoad();
+                n = load(std::get<std::string>(m));
             } else {
-                load(std::get<Archimedes::Module*>(m))->onLoad();
+                n = load(std::get<Archimedes::Module*>(m));
+            }
+            if(n) {
+                n->onLoad();
+                n = nullptr;
             }
         }
         toOpen.clear();

src/example_apps/MinimalApp/MinimalApp.h

@@ -24,10 +24,6 @@ class MinimalApp : public Archimedes::App {
         
         void run();
 
-        //void stopModule(std::list<Archimedes::Module*>::iterator);
-
-        //void startModule(std::string);
-
 };
 
 #define APP_TYPE MinimalApp