+/**
+ * \brief Helper thread for blocking interfaces.
+ * \ingroup vlc_interface
+ *
+ * This is a local function
+ * If the interface is launched in the main thread, it will not listen to
+ * p_vlc->b_die events because it is only supposed to listen to p_intf->b_die.
+ * This thread takes care of the matter.
+ * \see intf_RunThread
+ * \param p_intf an interface thread
+ * \return nothing
+ */