\chapter{I/O avanzato}
-\label{sec:file_advanced}
+\label{cha:file_advanced}
+
\section{I/O non bloccante}
\label{sec:file_noblocking}
+
\section{File locking}
\label{sec:file_locking}
+\subsection{Il \textit{mandatory locking}}
+\label{sec:file_mand_locking}
+
+
+
\section{I/O multiplexato}
\label{sec:file_multiplexing}