add release handler to unload all running plugin

httpd.c

@@ -61,7 +61,9 @@ void load_config(const char* file)
 	}
 	init_file_system();
 }
-
+void stop_serve(int dummy) {
+    unload_all_plugin();
+}
 int main(int argc, char* argv[])
 {
 // load the config first
@@ -81,6 +83,7 @@ int main(int argc, char* argv[])
 	//or reading to/from a closed socked connection
 	signal(SIGPIPE, SIG_IGN);
 	signal(SIGABRT, SIG_IGN);
+	signal(SIGINT, stop_serve);
 	server_sock = startup(&port);
 	LOG("httpd running on port %d\n", port);
 

plugin_manager.c

@@ -415,17 +415,33 @@ void * plugin_from_file(char* name)
  */
 void unload_all_plugin()
 {
+	LOG("Unload all plugins\n");
+	void (*fn)();
+	char* error;
 	for(int i=0;i<HASHSIZE;i++)
 	{
 		struct plugin_entry *np;
     	for (np = plugin_table[i]; np != NULL; np = np->next)
     	{
+			// execute the exit function if exists
+		 	// load the function
+		    fn = (void (*)())dlsym(np->handle, "pexit");
+		 	if ((error = dlerror()) != NULL)  
+		 	{
+		     	LOG("Cant not find exit method from %s : %s \n", np->pname,error);
+		    }
+			else
+			{
+				// execute it
+				(*fn)();
+			}	
         	dlclose(np->handle);
-        	free((void *) np->handle);
+        	//free((void *) np->handle);
         	free((void *) np->pname);
         }
         plugin_table[i] = NULL;
 	}
+	exit(0);
 }
 
 /**

plugins/fileman/fileman.c

@@ -186,3 +186,7 @@ void rmfolder(int c, const char* m, dictionary rq)
 	//LOG("%s\n",rpath );
 	__t(c,__RESULT__,1,"OK");
 }
+void pexit()
+{
+	LOG("Exit file manager,plugins\n");
+}