[core] Enable li_plugins_init_lua again, fixed segfault

src/main/actions.c

@@ -331,7 +331,9 @@ liHandlerResult li_action_execute(liVRequest *vr) {
 				break;
 			case LI_HANDLER_ERROR:
 				li_action_stack_reset(vr, as);
+				return res;
 			case LI_HANDLER_COMEBACK:
+				return res;
 			case LI_HANDLER_WAIT_FOR_EVENT:
 				if (ase != action_stack_top(as)) break; /* allow an action to push another action and rerun after it again */
 				return res;

src/main/core_lua.c

@@ -298,7 +298,7 @@ void li_lua_init(lua_State *L, liServer *srv, liWorker *wrk) {
 
 	li_lua_store_globals(L);
 
-	//li_plugins_init_lua(L, srv, wrk);
+	li_plugins_init_lua(L, srv, wrk);
 }
 
 void li_lua_restore_globals(lua_State *L) {

src/main/plugin.c

@@ -691,6 +691,8 @@ void li_plugins_init_lua(struct lua_State *L, liServer *srv, liWorker *wrk) {
 	liPlugin *p;
 	gpointer v;
 
+	if (NULL == srv->plugins) return;
+
 	g_hash_table_iter_init(&iter, srv->plugins);
 	while (g_hash_table_iter_next(&iter, NULL, &v)) {
 		p = (liPlugin*) v;

src/main/server.c

@@ -350,6 +350,11 @@ static gboolean li_server_worker_init(liServer *srv) {
 	ev_timer_start(loop, &srv->srv_1sec_timer);
 	ev_unref(loop); /* don't keep loop alive */
 
+#ifdef HAVE_LUA_H
+	li_plugins_init_lua(srv->L, srv, NULL);
+	li_plugins_init_lua(srv->main_worker->L, srv, srv->main_worker);
+#endif
+
 	if (srv->worker_count < 1) srv->worker_count = 1;
 	g_array_set_size(srv->workers, srv->worker_count);
 	g_array_index(srv->workers, liWorker*, 0) = srv->main_worker;
@@ -361,6 +366,10 @@ static gboolean li_server_worker_init(liServer *srv) {
 		}
 		wrk = g_array_index(srv->workers, liWorker*, i) = li_worker_new(srv, loop);
 		wrk->ndx = i;
+
+#ifdef HAVE_LUA_H
+	li_plugins_init_lua(wrk->L, srv, wrk);
+#endif
 	}
 
 	return TRUE;