#include <unistd.h>
 
 #include <csignal>
+#include <cassert>
 #include <algorithm> // for_each
 #include <functional> // mem_fun_ref
 
 #include "stg/users.h"
 #include "stg/user_property.h"
 #include "stg/common.h"
+#include "stg/plugin_creator.h"
 #include "ao.h"
 
-class AO_CREATOR
-{
-private:
-    AUTH_AO * ao;
-
-public:
-    AO_CREATOR()
-        : ao(new AUTH_AO())
-        {
-        };
-    ~AO_CREATOR()
-        {
-        delete ao;
-        };
-
-    AUTH_AO * GetPlugin()
-        {
-        return ao;
-        };
-};
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
-AO_CREATOR aoc;
+PLUGIN_CREATOR<AUTH_AO> aoc;
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+PLUGIN * GetPlugin()
+{
+return aoc.GetPlugin();
+}
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
-PLUGIN * GetPlugin()
-{
-return aoc.GetPlugin();
-}
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
 const string AUTH_AO::GetVersion() const
 {
 return "Always Online authorizator v.1.0";
 {
 USER_PTR u;
 int h = users->OpenSearch();
-if (!h)
-    {
-    printfd(__FILE__, "users->OpenSearch() error\n");
-    return;
-    }
+assert(h && "USERS::OpenSearch is always correct");
 
 while (!users->SearchNext(h, &u))
     {