137     connection *con;  member
237 #define http_con_state_is_keep_alive(con) \  argument
238   ((con)->h2                              \
239    ? 0 == (con)->h2->rused                \
240    : http_request_state_is_keep_alive(&(con)->request))
242 #define http_con_state_append(b, con)                            \  argument
243    (http_con_state_is_keep_alive(con)                            \
245     : http_request_state_append((b), (con)->request.state))
247 #define http_con_state_short(con)     \  argument
248    (http_con_state_is_keep_alive(con) \
250     : http_request_state_short((con)->request.state))