+u8 *
+echo_format_session (u8 * s, va_list * args)
+{
+ echo_session_t *session = va_arg (*args, echo_session_t *);
+
+ return format (s, "%U 0x%lx S[%u]", echo_format_session_type,
+ session->session_type, session->vpp_session_handle,
+ session->session_index);
+}
+
+u8 *
+echo_format_session_type (u8 * s, va_list * args)
+{
+ u32 session_type = va_arg (*args, u32);
+ switch (session_type)
+ {
+ case ECHO_SESSION_TYPE_QUIC:
+ return format (s, "Qsession");
+ case ECHO_SESSION_TYPE_STREAM:
+ return format (s, "Stream");
+ case ECHO_SESSION_TYPE_LISTEN:
+ return format (s, "Lsession");
+ default:
+ break;
+ }
+ return format (s, "BadSession");
+}
+
+u8 *
+echo_format_session_state (u8 * s, va_list * args)
+{
+ u32 session_state = va_arg (*args, u32);
+ switch (session_state)
+ {
+ case ECHO_SESSION_STATE_INITIAL:
+ return format (s, "ECHO_SESSION_STATE_INITIAL (%u)", session_state);
+ case ECHO_SESSION_STATE_READY:
+ return format (s, "ECHO_SESSION_STATE_READY (%u)", session_state);
+ case ECHO_SESSION_STATE_AWAIT_CLOSING:
+ return format (s, "ECHO_SESSION_STATE_AWAIT_CLOSING (%u)",
+ session_state);
+ case ECHO_SESSION_STATE_AWAIT_DATA:
+ return format (s, "ECHO_SESSION_STATE_AWAIT_DATA (%u)", session_state);
+ case ECHO_SESSION_STATE_CLOSING:
+ return format (s, "ECHO_SESSION_STATE_CLOSING (%u)", session_state);
+ case ECHO_SESSION_STATE_CLOSED:
+ return format (s, "ECHO_SESSION_STATE_CLOSED (%u)", session_state);
+ default:
+ break;
+ }
+ return format (s, "unknown session state (%u)", session_state);
+}
+