• close_mode_t : so_4::rt::comm::io_channel_t
• dispatching_t : so_4::rt::evt_subscr_t
• result_t : so_4::rt::impl::msg_fld_handler_t
• state_t : so_4::rt::impl::std_class_relation_handler_t
• subscr_flag_t : so_4::rt::evt_subscr_t
• use_disconnect_handler_flag_t : so_4::rt::comm::impl::sockcln_t, so_4::rt::comm::channels_impl::cln_channel_t

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