+static int get_diagnostic(Z_DefaultDiagFormat *r)
+{
+ return *r->condition;
+}
+
+bool yf::SessionShared::BackendSet::search(
+ mp::Package &frontend_package,
+ const Z_APDU *frontend_apdu,
+ const BackendInstancePtr bp,
+ Z_Records **z_records)
+{
+ Package search_package(bp->m_session, frontend_package.origin());
+
+ search_package.copy_filter(frontend_package);
+
+ mp::odr odr;
+ Z_APDU *apdu_req = zget_APDU(odr, Z_APDU_searchRequest);
+ Z_SearchRequest *req = apdu_req->u.searchRequest;
+
+ req->resultSetName = odr_strdup(odr, m_result_set_id.c_str());
+ req->query = m_query.get_Z_Query();
+
+ req->num_databaseNames = m_databases.size();
+ req->databaseNames = (char**)
+ odr_malloc(odr, req->num_databaseNames * sizeof(char *));
+ Databases::const_iterator it = m_databases.begin();
+ size_t i = 0;
+ for (; it != m_databases.end(); it++)
+ req->databaseNames[i++] = odr_strdup(odr, it->c_str());
+
+ search_package.request() = apdu_req;
+
+ search_package.move();
+
+ Z_GDU *gdu = search_package.response().get();
+ if (!search_package.session().is_closed()
+ && gdu && gdu->which == Z_GDU_Z3950
+ && gdu->u.z3950->which == Z_APDU_searchResponse)
+ {
+ Z_SearchResponse *b_resp = gdu->u.z3950->u.searchResponse;
+ *z_records = b_resp->records;
+ m_result_set_size = *b_resp->resultCount;
+ return true;
+ }
+ Z_APDU *f_apdu = 0;
+ if (frontend_apdu->which == Z_APDU_searchRequest)
+ f_apdu = odr.create_searchResponse(
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ else if (frontend_apdu->which == Z_APDU_presentRequest)
+ f_apdu = odr.create_presentResponse(
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ else
+ f_apdu = odr.create_close(
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ frontend_package.response() = f_apdu;
+ return false;
+}
+
+void yf::SessionShared::Frontend::override_set(
+ BackendInstancePtr &found_backend,
+ std::string &result_set_id)
+{
+ BackendClassPtr bc = m_backend_class;
+ BackendInstanceList::const_iterator it = bc->m_backend_list.begin();
+ time_t now;
+ time(&now);
+
+ for (; it != bc->m_backend_list.end(); it++)
+ {
+ if (!(*it)->m_in_use)
+ {
+ BackendSetList::iterator set_it = (*it)->m_sets.begin();
+ for (; set_it != (*it)->m_sets.end(); set_it++)
+ {
+ if (now >= (*set_it)->m_time_last_use &&
+ now - (*set_it)->m_time_last_use > bc->m_backend_set_ttl)
+ {
+ found_backend = *it;
+ result_set_id = (*set_it)->m_result_set_id;
+ found_backend->m_sets.erase(set_it);
+ return;
+ }
+ }
+ }
+ }
+ size_t max_sets = bc->m_named_result_sets ? bc->m_backend_set_max : 1;
+ for (it = bc->m_backend_list.begin(); it != bc->m_backend_list.end(); it++)
+ {
+ if (!(*it)->m_in_use && (*it)->m_sets.size() < max_sets)
+ {
+ found_backend = *it;
+ if (bc->m_named_result_sets)
+ {
+ result_set_id = boost::io::str(
+ boost::format("%1%") %
+ found_backend->m_result_set_sequence);
+ found_backend->m_result_set_sequence++;
+ }
+ else
+ result_set_id = "default";
+ return;
+ }
+ }
+}
+
+void yf::SessionShared::Frontend::get_set(mp::Package &package,
+ const Z_APDU *apdu_req,
+ const Databases &databases,
+ yazpp_1::Yaz_Z_Query &query,
+ BackendInstancePtr &found_backend,
+ BackendSetPtr &found_set)
+{
+ bool session_restarted = false;
+
+restart:
+ std::string result_set_id;
+ BackendClassPtr bc = m_backend_class;
+ {
+ boost::mutex::scoped_lock lock(bc->m_mutex_backend_class);