w->close = osx_write_close;
w->pre_select = osx_write_pre_select;
w->post_select = osx_write_post_select;
w->parse_config_or_die = osx_write_parse_config_or_die;
w->free_config = osx_free_config;
w->close = osx_write_close;
w->pre_select = osx_write_pre_select;
w->post_select = osx_write_post_select;
w->parse_config_or_die = osx_write_parse_config_or_die;
w->free_config = osx_free_config;