+ (parent->m_seqno)++;
+ return c;
+ }
+ }
+ if (!m_client)
+ {
+ if (apdu->which != Z_APDU_initRequest)
+ {
+ yaz_log (LOG_LOG, "no first INIT!");
+ return 0;
+ }
+ Z_InitRequest *initRequest = apdu->u.initRequest;
+
+ if (!initRequest->idAuthentication)
+ {
+ if (m_proxy_authentication)
+ {
+ initRequest->idAuthentication =
+ (Z_IdAuthentication *)
+ odr_malloc (odr_encode(),
+ sizeof(*initRequest->idAuthentication));
+ initRequest->idAuthentication->which =
+ Z_IdAuthentication_open;
+ initRequest->idAuthentication->u.open =
+ odr_strdup (odr_encode(), m_proxy_authentication);
+ }
+ }
+
+ // go through list of clients - and find the lowest/oldest one.
+ Yaz_ProxyClient *c_min = 0;
+ int min_seq = -1;
+ int no_of_clients = 0;
+ if (parent->m_clientPool)
+ yaz_log (LOG_LOG, "Existing sessions");
+ for (c = parent->m_clientPool; c; c = c->m_next)
+ {
+ yaz_log (LOG_LOG, " Session %-3d wait=%d %s", c->m_seqno,
+ c->m_waiting, c->get_hostname());
+ no_of_clients++;
+ if (min_seq < 0 || c->m_seqno < min_seq)
+ {
+ min_seq = c->m_seqno;
+ c_min = c;
+ }
+ }
+ if (no_of_clients >= parent->m_max_clients)
+ {
+ c = c_min;
+ if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
+ {
+ yaz_log (LOG_LOG, "Replace session %d",
+ c->m_seqno);
+ if (c->m_server && c->m_server != this)
+ delete c->m_server;
+ c->m_server = 0;
+ }