1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2012 Index Data
4 Pazpar2 is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 \brief high-level logic; mostly user sessions and settings
46 #include <yaz/marcdisp.h>
47 #include <yaz/comstack.h>
48 #include <yaz/tcpip.h>
49 #include <yaz/proto.h>
50 #include <yaz/readconf.h>
51 #include <yaz/pquery.h>
52 #include <yaz/otherinfo.h>
53 #include <yaz/yaz-util.h>
55 #include <yaz/query-charset.h>
56 #include <yaz/querytowrbuf.h>
57 #include <yaz/oid_db.h>
58 #include <yaz/snprintf.h>
62 #include <yaz/timing.h>
66 #include "parameters.h"
70 #include "termlists.h"
72 #include "relevance.h"
76 #include "normalize7bit.h"
78 #include <libxml/tree.h>
82 #define MAX(a,b) ((a)>(b)?(a):(b))
84 // Note: Some things in this structure will eventually move to configuration
85 struct parameters global_parameters =
89 0, // predictable sessions
93 struct client *client;
94 struct client_list *next;
97 /* session counting (1) , disable client counting (0) */
98 static YAZ_MUTEX g_session_mutex = 0;
99 static int no_sessions = 0;
100 static int no_session_total = 0;
102 static int session_use(int delta)
105 if (!g_session_mutex)
106 yaz_mutex_create(&g_session_mutex);
107 yaz_mutex_enter(g_session_mutex);
108 no_sessions += delta;
110 no_session_total += delta;
111 sessions = no_sessions;
112 yaz_mutex_leave(g_session_mutex);
113 yaz_log(YLOG_DEBUG, "%s sessions=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), no_sessions);
117 int sessions_count(void)
119 return session_use(0);
122 int session_count_total(void)
125 if (!g_session_mutex)
127 yaz_mutex_enter(g_session_mutex);
128 total = no_session_total;
129 yaz_mutex_leave(g_session_mutex);
133 static void log_xml_doc(xmlDoc *doc)
135 FILE *lf = yaz_log_file();
138 #if LIBXML_VERSION >= 20600
139 xmlDocDumpFormatMemory(doc, &result, &len, 1);
141 xmlDocDumpMemory(doc, &result, &len);
145 (void) fwrite(result, 1, len, lf);
151 static void session_enter(struct session *s, const char *caller)
154 session_log(s, YLOG_DEBUG, "Session lock by %s", caller);
155 yaz_mutex_enter(s->session_mutex);
158 static void session_leave(struct session *s, const char *caller)
160 yaz_mutex_leave(s->session_mutex);
162 session_log(s, YLOG_DEBUG, "Session unlock by %s", caller);
165 static void session_normalize_facet(struct session *s, const char *type,
170 struct conf_service *service = s->service;
171 pp2_charset_token_t prt;
172 const char *facet_component;
174 const char *icu_chain_id = 0;
176 for (i = 0; i < service->num_metadata; i++)
177 if (!strcmp((service->metadata + i)->name, type))
178 icu_chain_id = (service->metadata + i)->facetrule;
180 icu_chain_id = "facet";
181 prt = pp2_charset_token_create(service->charsets, icu_chain_id);
184 yaz_log(YLOG_FATAL, "Unknown ICU chain '%s' for facet of type '%s'",
186 wrbuf_destroy(facet_wrbuf);
187 wrbuf_destroy(display_wrbuf);
190 pp2_charset_token_first(prt, value, 0);
191 while ((facet_component = pp2_charset_token_next(prt)))
193 const char *display_component;
194 if (*facet_component)
196 if (wrbuf_len(facet_wrbuf))
197 wrbuf_puts(facet_wrbuf, " ");
198 wrbuf_puts(facet_wrbuf, facet_component);
200 display_component = pp2_get_display(prt);
201 if (display_component)
203 if (wrbuf_len(display_wrbuf))
204 wrbuf_puts(display_wrbuf, " ");
205 wrbuf_puts(display_wrbuf, display_component);
208 pp2_charset_token_destroy(prt);
211 void add_facet(struct session *s, const char *type, const char *value, int count)
213 WRBUF facet_wrbuf = wrbuf_alloc();
214 WRBUF display_wrbuf = wrbuf_alloc();
216 session_normalize_facet(s, type, value, display_wrbuf, facet_wrbuf);
218 if (wrbuf_len(facet_wrbuf))
221 for (i = 0; i < s->num_termlists; i++)
222 if (!strcmp(s->termlists[i].name, type))
224 if (i == s->num_termlists)
226 if (i == SESSION_MAX_TERMLISTS)
228 session_log(s, YLOG_FATAL, "Too many termlists");
229 wrbuf_destroy(facet_wrbuf);
230 wrbuf_destroy(display_wrbuf);
234 s->termlists[i].name = nmem_strdup(s->nmem, type);
235 s->termlists[i].termlist = termlist_create(s->nmem);
236 s->num_termlists = i + 1;
240 session_log(s, YLOG_LOG, "Facets for %s: %s norm:%s (%d)", type, value, wrbuf_cstr(facet_wrbuf), count);
242 termlist_insert(s->termlists[i].termlist, wrbuf_cstr(display_wrbuf),
243 wrbuf_cstr(facet_wrbuf), count);
245 wrbuf_destroy(facet_wrbuf);
246 wrbuf_destroy(display_wrbuf);
249 static xmlDoc *record_to_xml(struct session *se,
250 struct session_database *sdb, const char *rec)
252 struct database *db = sdb->database;
255 rdoc = xmlParseMemory(rec, strlen(rec));
259 session_log(se, YLOG_WARN, "Non-wellformed XML");
263 if (global_parameters.dump_records)
265 session_log(se, YLOG_LOG, "Un-normalized record from %s", db->id);
272 #define MAX_XSLT_ARGS 16
274 // Add static values from session database settings if applicable
275 static void insert_settings_parameters(struct session_database *sdb,
276 struct conf_service *service,
284 for (i = 0; i < service->num_metadata; i++)
286 struct conf_metadata *md = &service->metadata[i];
289 if (md->setting == Metadata_setting_parameter &&
290 (setting = settings_lookup_offset(service, md->name)) >= 0)
292 const char *val = session_setting_oneval(sdb, setting);
293 if (val && nparms < MAX_XSLT_ARGS)
296 int len = strlen(val);
297 buf = nmem_malloc(nmem, len + 3);
299 strcpy(buf + 1, val);
302 parms[offset++] = md->name;
303 parms[offset++] = buf;
311 // Add static values from session database settings if applicable
312 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
313 struct conf_service *service)
317 for (i = 0; i < service->num_metadata; i++)
319 struct conf_metadata *md = &service->metadata[i];
322 if (md->setting == Metadata_setting_postproc &&
323 (offset = settings_lookup_offset(service, md->name)) >= 0)
325 const char *val = session_setting_oneval(sdb, offset);
328 xmlNode *r = xmlDocGetRootElement(doc);
329 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
331 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
337 static xmlDoc *normalize_record(struct session *se,
338 struct session_database *sdb,
339 struct conf_service *service,
340 const char *rec, NMEM nmem)
342 xmlDoc *rdoc = record_to_xml(se, sdb, rec);
346 char *parms[MAX_XSLT_ARGS*2+1];
348 insert_settings_parameters(sdb, service, parms, nmem);
350 if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
352 session_log(se, YLOG_WARN, "Normalize failed");
356 insert_settings_values(sdb, rdoc, service);
358 if (global_parameters.dump_records)
360 session_log(se, YLOG_LOG, "Normalized record from %s",
369 void session_settings_dump(struct session *se,
370 struct session_database *db,
375 int i, num = db->num_settings;
376 for (i = 0; i < num; i++)
378 struct setting *s = db->settings[i];
379 for (;s ; s = s->next)
381 wrbuf_puts(w, "<set name=\"");
382 wrbuf_xmlputs(w, s->name);
383 wrbuf_puts(w, "\" value=\"");
384 wrbuf_xmlputs(w, s->value);
385 wrbuf_puts(w, "\"/>");
393 // Retrieve first defined value for 'name' for given database.
394 // Will be extended to take into account user associated with session
395 const char *session_setting_oneval(struct session_database *db, int offset)
397 if (offset >= db->num_settings || !db->settings[offset])
399 return db->settings[offset]->value;
402 // Prepare XSLT stylesheets for record normalization
403 // Structures are allocated on the session_wide nmem to avoid having
404 // to recompute this for every search. This would lead
405 // to leaking if a single session was to repeatedly change the PZ_XSLT
406 // setting. However, this is not a realistic use scenario.
407 static int prepare_map(struct session *se, struct session_database *sdb)
409 if (sdb->settings && !sdb->map)
413 if (sdb->settings[PZ_XSLT] &&
414 (s = session_setting_oneval(sdb, PZ_XSLT)))
416 char auto_stylesheet[256];
418 if (!strcmp(s, "auto"))
420 const char *request_syntax = session_setting_oneval(
421 sdb, PZ_REQUESTSYNTAX);
425 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
426 "%s.xsl", request_syntax);
427 for (cp = auto_stylesheet; *cp; cp++)
429 /* deliberately only consider ASCII */
430 if (*cp > 32 && *cp < 127)
437 session_log(se, YLOG_WARN,
438 "No pz:requestsyntax for auto stylesheet");
441 sdb->map = normalize_cache_get(se->normalize_cache,
450 // called if watch should be removed because http_channel is to be destroyed
451 static void session_watch_cancel(void *data, struct http_channel *c,
454 struct session_watchentry *ent = data;
461 // set watch. Returns 0=OK, -1 if watch is already set
462 int session_set_watch(struct session *s, int what,
463 session_watchfun fun, void *data,
464 struct http_channel *chan)
467 session_enter(s, "session_set_watch");
468 if (s->watchlist[what].fun)
473 s->watchlist[what].fun = fun;
474 s->watchlist[what].data = data;
475 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
476 session_watch_cancel);
479 session_leave(s, "session_set_watch");
483 void session_alert_watch(struct session *s, int what)
486 session_enter(s, "session_alert_watch");
487 if (s->watchlist[what].fun)
489 /* our watch is no longer associated with http_channel */
491 session_watchfun fun;
493 http_remove_observer(s->watchlist[what].obs);
494 fun = s->watchlist[what].fun;
495 data = s->watchlist[what].data;
497 /* reset watch before fun is invoked - in case fun wants to set
499 s->watchlist[what].fun = 0;
500 s->watchlist[what].data = 0;
501 s->watchlist[what].obs = 0;
503 session_leave(s, "session_alert_watch");
504 session_log(s, YLOG_DEBUG,
505 "Alert Watch: %d calling function: %p", what, fun);
509 session_leave(s,"session_alert_watch");
512 //callback for grep_databases
513 static void select_targets_callback(struct session *se,
514 struct session_database *db)
517 struct client_list *l;
519 for (l = se->clients_cached; l; l = l->next)
520 if (client_get_database(l->client) == db)
527 cl = client_create(db->database->id);
528 client_set_database(cl, db);
530 l = xmalloc(sizeof(*l));
532 l->next = se->clients_cached;
533 se->clients_cached = l;
535 /* set session always. If may be 0 if client is not active */
536 client_set_session(cl, se);
538 l = xmalloc(sizeof(*l));
540 l->next = se->clients_active;
541 se->clients_active = l;
544 static void session_reset_active_clients(struct session *se,
545 struct client_list *new_list)
547 struct client_list *l;
549 session_enter(se, "session_reset_active_clients");
550 l = se->clients_active;
551 se->clients_active = new_list;
552 session_leave(se, "session_reset_active_clients");
556 struct client_list *l_next = l->next;
558 client_lock(l->client);
559 client_set_session(l->client, 0); /* mark client inactive */
560 client_unlock(l->client);
567 static void session_remove_cached_clients(struct session *se)
569 struct client_list *l;
571 session_reset_active_clients(se, 0);
573 session_enter(se, "session_remove_cached_clients");
574 l = se->clients_cached;
575 se->clients_cached = 0;
576 session_leave(se, "session_remove_cached_clients");
580 struct client_list *l_next = l->next;
581 client_lock(l->client);
582 client_set_session(l->client, 0);
583 client_set_database(l->client, 0);
584 client_unlock(l->client);
585 client_destroy(l->client);
591 // Associates a set of clients with a session;
592 // Note: Session-databases represent databases with per-session
594 static int select_targets(struct session *se, const char *filter)
596 return session_grep_databases(se, filter, select_targets_callback);
599 int session_active_clients(struct session *s)
601 struct client_list *l;
604 for (l = s->clients_active; l; l = l->next)
605 if (client_is_active(l->client))
611 int session_is_preferred_clients_ready(struct session *s)
613 struct client_list *l;
616 for (l = s->clients_active; l; l = l->next)
617 if (client_is_active_preferred(l->client))
619 session_log(s, YLOG_DEBUG, "Has %d active preferred clients.", res);
623 static void session_clear_set(struct session *se, struct reclist_sortparms *sp)
625 reclist_destroy(se->reclist);
627 if (nmem_total(se->nmem))
628 session_log(se, YLOG_DEBUG, "NMEN operation usage %zd",
629 nmem_total(se->nmem));
630 nmem_reset(se->nmem);
631 se->total_records = se->total_merged = 0;
632 se->num_termlists = 0;
634 /* reset list of sorted results and clear to relevance search */
635 se->sorted_results = nmem_malloc(se->nmem, sizeof(*se->sorted_results));
636 se->sorted_results->name = nmem_strdup(se->nmem, sp->name);
637 se->sorted_results->increasing = sp->increasing;
638 se->sorted_results->type = sp->type;
639 se->sorted_results->next = 0;
641 session_log(se, YLOG_DEBUG, "clear_set session_sort: field=%s increasing=%d type=%d configured",
642 sp->name, sp->increasing, sp->type);
644 se->reclist = reclist_create(se->nmem);
647 static void session_sort_unlocked(struct session *se, struct reclist_sortparms *sp)
649 struct reclist_sortparms *sr;
650 struct client_list *l;
651 const char *field = sp->name;
652 int increasing = sp->increasing;
654 int clients_research = 0;
656 yaz_log(YLOG_LOG, "session_sort field=%s increasing=%d type=%d", field, increasing, type);
657 /* see if we already have sorted for this criteria */
658 for (sr = se->sorted_results; sr; sr = sr->next)
660 if (!reclist_sortparms_cmp(sr,sp))
665 session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d already fetched",
666 field, increasing, type);
669 session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d must fetch",
670 field, increasing, type);
672 // We need to reset reclist on every sort that changes the records, not just for position
673 // So if just one client requires new searching, we need to clear set.
674 // Ask each of the client if sorting requires re-search due to native sort
675 // If it does it will require us to
676 for (l = se->clients_active; l; l = l->next)
678 struct client *cl = l->client;
679 // Assume no re-search is required.
680 client_parse_init(cl, 1);
681 clients_research += client_parse_sort(cl, sp);
683 if (clients_research) {
684 yaz_log(YLOG_DEBUG, "Reset results due to %d clients researching", clients_research);
685 session_clear_set(se, sp);
688 // A new sorting based on same record set
689 sr = nmem_malloc(se->nmem, sizeof(*sr));
690 sr->name = nmem_strdup(se->nmem, field);
691 sr->increasing = increasing;
693 sr->next = se->sorted_results;
694 se->sorted_results = sr;
695 session_log(se, YLOG_DEBUG, "No research/ingesting done");
698 session_log(se, YLOG_DEBUG, "Re- search/ingesting for clients due to change in sort order");
700 for (l = se->clients_active; l; l = l->next)
702 struct client *cl = l->client;
703 if (client_get_state(cl) == Client_Connecting ||
704 client_get_state(cl) == Client_Idle ||
705 client_get_state(cl) == Client_Working) {
706 client_start_search(cl);
709 yaz_log(YLOG_DEBUG, "Client %s: No re-start/ingest in show. Wrong client state: %d",
710 client_get_id(cl), client_get_state(cl));
716 void session_sort(struct session *se, struct reclist_sortparms *sp) {
717 //session_enter(se, "session_sort");
718 session_sort_unlocked(se, sp);
719 //session_leave(se, "session_sort");
723 enum pazpar2_error_code session_search(struct session *se,
725 const char *startrecs,
729 const char **addinfo,
730 struct reclist_sortparms *sp)
732 int live_channels = 0;
734 int no_failed_query = 0;
735 int no_failed_limit = 0;
736 struct client_list *l, *l0;
737 facet_limits_t facet_limits;
738 int same_sort_order = 0;
740 session_log(se, YLOG_DEBUG, "Search");
744 if (se->settings_modified) {
745 session_remove_cached_clients(se);
748 session_reset_active_clients(se, 0);
750 session_enter(se, "session_search");
751 se->settings_modified = 0;
753 if (se->sorted_results) {
754 if (!reclist_sortparms_cmp(se->sorted_results, sp))
757 session_clear_set(se, sp);
758 relevance_destroy(&se->relevance);
760 live_channels = select_targets(se, filter);
763 session_leave(se, "session_search");
764 return PAZPAR2_NO_TARGETS;
767 facet_limits = facet_limits_create(limit);
771 session_leave(se, "session_search");
772 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
775 l0 = se->clients_active;
776 se->clients_active = 0;
777 session_leave(se, "session_search");
779 for (l = l0; l; l = l->next)
782 struct client *cl = l->client;
783 client_parse_init(cl, 1);
784 if (prepare_map(se, client_get_database(cl)) < 0)
787 parse_ret = client_parse_query(cl, query, facet_limits, se->service->ccl_bibset);
790 else if (parse_ret == -2)
792 else if (parse_ret < 0)
793 no_working++; /* other error, such as bad CCL map */
796 client_parse_range(cl, startrecs, maxrecs);
797 client_parse_sort(cl, sp);
798 client_start_search(cl);
802 facet_limits_destroy(facet_limits);
803 session_reset_active_clients(se, l0);
807 if (no_failed_query > 0)
810 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
812 else if (no_failed_limit > 0)
815 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
818 return PAZPAR2_NO_TARGETS;
820 session_log(se, YLOG_LOG, "session_start_search done");
821 return PAZPAR2_NO_ERROR;
824 // Creates a new session_database object for a database
825 static void session_init_databases_fun(void *context, struct database *db)
827 struct session *se = (struct session *) context;
828 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
834 assert(db->settings);
835 new->settings = nmem_malloc(se->session_nmem,
836 sizeof(struct settings *) * db->num_settings);
837 new->num_settings = db->num_settings;
838 for (i = 0; i < db->num_settings; i++)
840 struct setting *setting = db->settings[i];
841 new->settings[i] = setting;
843 new->next = se->databases;
847 // Doesn't free memory associated with sdb -- nmem takes care of that
848 static void session_database_destroy(struct session_database *sdb)
853 // Initialize session_database list -- this represents this session's view
854 // of the database list -- subject to modification by the settings ws command
855 void session_init_databases(struct session *se)
858 predef_grep_databases(se, se->service, session_init_databases_fun);
861 // Probably session_init_databases_fun should be refactored instead of
863 static struct session_database *load_session_database(struct session *se,
866 struct database *db = new_database_inherit_settings(id, se->session_nmem, se->service->settings);
867 session_init_databases_fun((void*) se, db);
869 // New sdb is head of se->databases list
870 return se->databases;
873 // Find an existing session database. If not found, load it
874 static struct session_database *find_session_database(struct session *se,
877 struct session_database *sdb;
879 for (sdb = se->databases; sdb; sdb = sdb->next)
880 if (!strcmp(sdb->database->id, id))
882 return load_session_database(se, id);
885 // Apply a session override to a database
886 void session_apply_setting(struct session *se, char *dbname, char *setting,
889 struct session_database *sdb = find_session_database(se, dbname);
890 struct conf_service *service = se->service;
891 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
892 int offset = settings_create_offset(service, setting);
894 expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
897 new->target = dbname;
900 new->next = sdb->settings[offset];
901 sdb->settings[offset] = new;
903 se->settings_modified = 1;
905 // Force later recompute of settings-driven data structures
906 // (happens when a search starts and client connections are prepared)
918 void session_destroy(struct session *se)
920 struct session_database *sdb;
921 session_log(se, YLOG_DEBUG, "Destroying");
923 session_remove_cached_clients(se);
925 for (sdb = se->databases; sdb; sdb = sdb->next)
926 session_database_destroy(sdb);
927 normalize_cache_destroy(se->normalize_cache);
928 relevance_destroy(&se->relevance);
929 reclist_destroy(se->reclist);
930 if (nmem_total(se->nmem))
931 session_log(se, YLOG_DEBUG, "NMEN operation usage %zd", nmem_total(se->nmem));
932 if (nmem_total(se->session_nmem))
933 session_log(se, YLOG_DEBUG, "NMEN session usage %zd", nmem_total(se->session_nmem));
934 nmem_destroy(se->nmem);
935 service_destroy(se->service);
936 yaz_mutex_destroy(&se->session_mutex);
939 size_t session_get_memory_status(struct session *session) {
943 session_enter(session, "session_get_memory_status");
944 session_nmem = nmem_total(session->nmem);
945 session_leave(session, "session_get_memory_status");
950 struct session *new_session(NMEM nmem, struct conf_service *service,
954 struct session *session = nmem_malloc(nmem, sizeof(*session));
958 sprintf(tmp_str, "session#%u", session_id);
960 session->session_id = session_id;
961 session_log(session, YLOG_DEBUG, "New");
962 session->service = service;
963 session->relevance = 0;
964 session->total_records = 0;
965 session->number_of_warnings_unknown_elements = 0;
966 session->number_of_warnings_unknown_metadata = 0;
967 session->num_termlists = 0;
968 session->reclist = 0;
969 session->clients_active = 0;
970 session->clients_cached = 0;
971 session->settings_modified = 0;
972 session->session_nmem = nmem;
973 session->nmem = nmem_create();
974 session->databases = 0;
975 session->sorted_results = 0;
977 for (i = 0; i <= SESSION_WATCH_MAX; i++)
979 session->watchlist[i].data = 0;
980 session->watchlist[i].fun = 0;
982 session->normalize_cache = normalize_cache_create();
983 session->session_mutex = 0;
984 pazpar2_mutex_create(&session->session_mutex, tmp_str);
989 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf);
991 static struct hitsbytarget *hitsbytarget_nb(struct session *se,
992 int *count, NMEM nmem)
994 struct hitsbytarget *res = 0;
995 struct client_list *l;
998 for (l = se->clients_active; l; l = l->next)
1001 res = nmem_malloc(nmem, sizeof(*res) * sz);
1003 for (l = se->clients_active; l; l = l->next)
1005 struct client *cl = l->client;
1006 WRBUF w = wrbuf_alloc();
1007 const char *name = session_setting_oneval(client_get_database(cl),
1010 res[*count].id = client_get_id(cl);
1011 res[*count].name = *name ? name : "Unknown";
1012 res[*count].hits = client_get_hits(cl);
1013 res[*count].approximation = client_get_approximation(cl);
1014 res[*count].records = client_get_num_records(cl);
1015 res[*count].filtered = client_get_num_records_filtered(cl);
1016 res[*count].diagnostic =
1017 client_get_diagnostic(cl, &res[*count].message,
1018 &res[*count].addinfo);
1019 res[*count].state = client_get_state_str(cl);
1020 res[*count].connected = client_get_connection(cl) ? 1 : 0;
1021 session_settings_dump(se, client_get_database(cl), w);
1022 res[*count].settings_xml = nmem_strdup(nmem, wrbuf_cstr(w));
1025 res[*count].suggestions_xml = nmem_strdup(nmem, client_get_suggestions_xml(cl, w));
1032 struct hitsbytarget *get_hitsbytarget(struct session *se, int *count, NMEM nmem)
1034 struct hitsbytarget *p;
1035 session_enter(se, "get_hitsbytarget");
1036 p = hitsbytarget_nb(se, count, nmem);
1037 session_leave(se, "get_hitsbytarget");
1041 // Compares two hitsbytarget nodes by hitcount
1042 static int cmp_ht(const void *p1, const void *p2)
1044 const struct hitsbytarget *h1 = p1;
1045 const struct hitsbytarget *h2 = p2;
1046 return h2->hits - h1->hits;
1049 // Compares two hitsbytarget nodes by hitcount
1050 static int cmp_ht_approx(const void *p1, const void *p2)
1052 const struct hitsbytarget *h1 = p1;
1053 const struct hitsbytarget *h2 = p2;
1054 return h2->approximation - h1->approximation;
1057 static int targets_termlist_nb(WRBUF wrbuf, struct session *se, int num,
1058 NMEM nmem, int version)
1060 struct hitsbytarget *ht;
1063 ht = hitsbytarget_nb(se, &count, nmem);
1065 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht_approx);
1067 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
1068 for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
1071 // do only print terms which have display names
1073 wrbuf_puts(wrbuf, "<term>\n");
1075 wrbuf_puts(wrbuf, "<id>");
1076 wrbuf_xmlputs(wrbuf, ht[i].id);
1077 wrbuf_puts(wrbuf, "</id>\n");
1079 wrbuf_puts(wrbuf, "<name>");
1080 if (!ht[i].name || !ht[i].name[0])
1081 wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
1083 wrbuf_xmlputs(wrbuf, ht[i].name);
1084 wrbuf_puts(wrbuf, "</name>\n");
1086 wrbuf_printf(wrbuf, "<frequency>" ODR_INT_PRINTF "</frequency>\n",
1090 // Should not print if we know it isn't a approximation.
1091 wrbuf_printf(wrbuf, "<approximation>" ODR_INT_PRINTF "</approximation>\n", ht[i].approximation);
1092 wrbuf_printf(wrbuf, "<records>%d</records>\n", ht[i].records - ht[i].filtered);
1093 wrbuf_printf(wrbuf, "<filtered>%d</filtered>\n", ht[i].filtered);
1096 wrbuf_puts(wrbuf, "<state>");
1097 wrbuf_xmlputs(wrbuf, ht[i].state);
1098 wrbuf_puts(wrbuf, "</state>\n");
1100 wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
1102 wrbuf_puts(wrbuf, "</term>\n");
1107 void perform_termlist(struct http_channel *c, struct session *se,
1108 const char *name, int num, int version)
1111 NMEM nmem_tmp = nmem_create();
1118 nmem_strsplit(nmem_tmp, ",", name, &names, &num_names);
1120 session_enter(se, "perform_termlist");
1122 for (j = 0; j < num_names; j++)
1125 int must_generate_empty = 1; /* bug 5350 */
1127 for (i = 0; i < se->num_termlists; i++)
1129 tname = se->termlists[i].name;
1130 if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
1132 struct termlist_score **p = 0;
1135 wrbuf_puts(c->wrbuf, "<list name=\"");
1136 wrbuf_xmlputs(c->wrbuf, tname);
1137 wrbuf_puts(c->wrbuf, "\">\n");
1138 must_generate_empty = 0;
1140 p = termlist_highscore(se->termlists[i].termlist, &len,
1145 for (i = 0; i < len && i < num; i++)
1147 // prevent sending empty term elements
1148 if (!p[i]->display_term || !p[i]->display_term[0])
1151 wrbuf_puts(c->wrbuf, "<term>");
1152 wrbuf_puts(c->wrbuf, "<name>");
1153 wrbuf_xmlputs(c->wrbuf, p[i]->display_term);
1154 wrbuf_puts(c->wrbuf, "</name>");
1156 wrbuf_printf(c->wrbuf,
1157 "<frequency>%d</frequency>",
1159 wrbuf_puts(c->wrbuf, "</term>\n");
1162 wrbuf_puts(c->wrbuf, "</list>\n");
1166 if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
1168 wrbuf_puts(c->wrbuf, "<list name=\"");
1169 wrbuf_xmlputs(c->wrbuf, tname);
1170 wrbuf_puts(c->wrbuf, "\">\n");
1172 targets_termlist_nb(c->wrbuf, se, num, c->nmem, version);
1173 wrbuf_puts(c->wrbuf, "</list>\n");
1174 must_generate_empty = 0;
1176 if (must_generate_empty)
1178 wrbuf_puts(c->wrbuf, "<list name=\"");
1179 wrbuf_xmlputs(c->wrbuf, names[j]);
1180 wrbuf_puts(c->wrbuf, "\"/>\n");
1183 session_leave(se, "perform_termlist");
1184 nmem_destroy(nmem_tmp);
1187 #ifdef MISSING_HEADERS
1188 void report_nmem_stats(void)
1190 size_t in_use, is_free;
1192 nmem_get_memory_in_use(&in_use);
1193 nmem_get_memory_free(&is_free);
1195 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
1196 (long) in_use, (long) is_free);
1200 struct record_cluster *show_single_start(struct session *se, const char *id,
1201 struct record_cluster **prev_r,
1202 struct record_cluster **next_r)
1204 struct record_cluster *r = 0;
1206 session_enter(se, "show_single_start");
1211 reclist_enter(se->reclist);
1212 while ((r = reclist_read_record(se->reclist)))
1214 if (!strcmp(r->recid, id))
1216 *next_r = reclist_read_record(se->reclist);
1221 reclist_leave(se->reclist);
1224 session_leave(se, "show_single_start");
1228 void show_single_stop(struct session *se, struct record_cluster *rec)
1230 session_leave(se, "show_single_stop");
1233 struct record_cluster **show_range_start(struct session *se,
1234 struct reclist_sortparms *sp,
1235 int start, int *num, int *total, Odr_int *sumhits, Odr_int *approx_hits)
1237 struct record_cluster **recs;
1238 struct reclist_sortparms *spp;
1241 yaz_timing_t t = yaz_timing_create();
1243 session_enter(se, "show_range_start");
1244 recs = nmem_malloc(se->nmem, *num * sizeof(struct record_cluster *));
1255 struct client_list *l;
1257 for (spp = sp; spp; spp = spp->next)
1258 if (spp->type == Metadata_sortkey_relevance)
1260 relevance_prepare_read(se->relevance, se->reclist);
1263 reclist_sort(se->reclist, sp);
1265 reclist_enter(se->reclist);
1266 *total = reclist_get_num_records(se->reclist);
1270 for (l = se->clients_active; l; l = l->next) {
1271 *sumhits += client_get_hits(l->client);
1272 *approx_hits += client_get_approximation(l->client);
1274 for (i = 0; i < start; i++)
1275 if (!reclist_read_record(se->reclist))
1282 for (i = 0; i < *num; i++)
1284 struct record_cluster *r = reclist_read_record(se->reclist);
1292 reclist_leave(se->reclist);
1296 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
1297 yaz_timing_get_real(t), yaz_timing_get_user(t),
1298 yaz_timing_get_sys(t));
1299 yaz_timing_destroy(&t);
1304 void show_range_stop(struct session *se, struct record_cluster **recs)
1306 session_leave(se, "show_range_stop");
1309 void statistics(struct session *se, struct statistics *stat)
1311 struct client_list *l;
1314 memset(stat, 0, sizeof(*stat));
1316 for (l = se->clients_active; l; l = l->next)
1318 struct client *cl = l->client;
1319 if (!client_get_connection(cl))
1320 stat->num_no_connection++;
1321 stat->num_hits += client_get_hits(cl);
1322 switch (client_get_state(cl))
1324 case Client_Connecting: stat->num_connecting++; break;
1325 case Client_Working: stat->num_working++; break;
1326 case Client_Idle: stat->num_idle++; break;
1327 case Client_Failed: stat->num_failed++; break;
1328 case Client_Error: stat->num_error++; break;
1333 stat->num_records = se->total_records;
1335 stat->num_clients = count;
1338 static struct record_metadata *record_metadata_init(
1339 NMEM nmem, const char *value, enum conf_metadata_type type,
1340 struct _xmlAttr *attr)
1342 struct record_metadata *rec_md = record_metadata_create(nmem);
1343 struct record_metadata_attr **attrp = &rec_md->attributes;
1345 for (; attr; attr = attr->next)
1347 if (attr->children && attr->children->content)
1349 if (strcmp((const char *) attr->name, "type"))
1350 { /* skip the "type" attribute.. Its value is already part of
1351 the element in output (md-%s) and so repeating it here
1353 *attrp = nmem_malloc(nmem, sizeof(**attrp));
1355 nmem_strdup(nmem, (const char *) attr->name);
1357 nmem_strdup(nmem, (const char *) attr->children->content);
1358 attrp = &(*attrp)->next;
1364 if (type == Metadata_type_generic)
1366 char *p = nmem_strdup(nmem, value);
1368 p = normalize7bit_generic(p, " ,/.:([");
1370 rec_md->data.text.disp = p;
1371 rec_md->data.text.sort = 0;
1373 else if (type == Metadata_type_year || type == Metadata_type_date)
1378 if (type == Metadata_type_date)
1380 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
1383 rec_md->data.number.min = first;
1384 rec_md->data.number.max = last;
1391 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
1392 struct conf_service *service, WRBUF norm_wr)
1396 for (n = root->children; n; n = n->next)
1398 if (n->type != XML_ELEMENT_NODE)
1400 if (!strcmp((const char *) n->name, "metadata"))
1402 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1404 yaz_log(YLOG_FATAL, "Missing type attribute on metadata element. Skipping!");
1406 else if (!strcmp(name, (const char *) type))
1408 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1411 const char *norm_str;
1412 pp2_charset_token_t prt =
1413 pp2_charset_token_create(service->charsets, "mergekey");
1415 pp2_charset_token_first(prt, (const char *) value, 0);
1416 if (wrbuf_len(norm_wr) > 0)
1417 wrbuf_puts(norm_wr, " ");
1418 wrbuf_puts(norm_wr, name);
1420 pp2_charset_token_next(prt)))
1424 wrbuf_puts(norm_wr, " ");
1425 wrbuf_puts(norm_wr, norm_str);
1429 pp2_charset_token_destroy(prt);
1439 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
1440 struct conf_service *service, NMEM nmem)
1442 char *mergekey_norm = 0;
1443 xmlNode *root = xmlDocGetRootElement(doc);
1444 WRBUF norm_wr = wrbuf_alloc();
1446 /* consider mergekey from XSL first */
1447 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
1450 const char *norm_str;
1451 pp2_charset_token_t prt =
1452 pp2_charset_token_create(service->charsets, "mergekey");
1454 pp2_charset_token_first(prt, (const char *) mergekey, 0);
1455 while ((norm_str = pp2_charset_token_next(prt)))
1459 if (wrbuf_len(norm_wr))
1460 wrbuf_puts(norm_wr, " ");
1461 wrbuf_puts(norm_wr, norm_str);
1464 pp2_charset_token_destroy(prt);
1469 /* no mergekey defined in XSL. Look for mergekey metadata instead */
1471 for (field_id = 0; field_id < service->num_metadata; field_id++)
1473 struct conf_metadata *ser_md = &service->metadata[field_id];
1474 if (ser_md->mergekey != Metadata_mergekey_no)
1476 int r = get_mergekey_from_doc(doc, root, ser_md->name,
1478 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
1480 /* no mergekey on this one and it is required..
1481 Generate unique key instead */
1482 wrbuf_rewind(norm_wr);
1489 /* generate unique key if none is not generated already or is empty */
1490 if (wrbuf_len(norm_wr) == 0)
1492 wrbuf_printf(norm_wr, "position: %s-%d",
1493 client_get_id(cl), record_no);
1497 const char *lead = "content: ";
1498 wrbuf_insert(norm_wr, 0, lead, strlen(lead));
1500 if (wrbuf_len(norm_wr) > 0)
1501 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1502 wrbuf_destroy(norm_wr);
1503 return mergekey_norm;
1506 /** \brief see if metadata for pz:recordfilter exists
1507 \param root xml root element of normalized record
1508 \param sdb session database for client
1509 \retval 0 if there is no metadata for pz:recordfilter
1510 \retval 1 if there is metadata for pz:recordfilter
1512 If there is no pz:recordfilter defined, this function returns 1
1516 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1521 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1526 for (n = root->children; n; n = n->next)
1528 if (n->type != XML_ELEMENT_NODE)
1530 if (!strcmp((const char *) n->name, "metadata"))
1532 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1539 if ((eq = strchr(s, '=')))
1541 else if ((eq = strchr(s, '~')))
1547 if (len == strlen((const char *)type) &&
1548 !memcmp((const char *) type, s, len))
1550 xmlChar *value = xmlNodeGetContent(n);
1551 if (value && *value)
1554 (substring && strstr((const char *) value, eq+1)) ||
1555 (!substring && !strcmp((const char *) value, eq + 1)))
1568 static int ingest_to_cluster(struct client *cl,
1572 const char *mergekey_norm);
1574 /** \brief ingest XML record
1575 \param cl client holds the result set for record
1576 \param rec record buffer (0 terminated)
1577 \param record_no record position (1, 2, ..)
1578 \param nmem working NMEM
1583 int ingest_record(struct client *cl, const char *rec,
1584 int record_no, NMEM nmem)
1586 struct session *se = client_get_session(cl);
1588 struct session_database *sdb = client_get_database(cl);
1589 struct conf_service *service = se->service;
1590 xmlDoc *xdoc = normalize_record(se, sdb, service, rec, nmem);
1592 const char *mergekey_norm;
1597 root = xmlDocGetRootElement(xdoc);
1599 if (!check_record_filter(root, sdb))
1601 session_log(se, YLOG_LOG, "Filtered out record no %d from %s", record_no, sdb->database->id);
1606 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, nmem);
1609 session_log(se, YLOG_WARN, "Got no mergekey");
1613 session_enter(se, "ingest_record");
1614 if (client_get_session(cl) == se)
1615 ret = ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
1616 session_leave(se, "ingest_record");
1622 // Skip record on non-zero
1623 static int check_limit_local(struct client *cl,
1624 struct record *record,
1627 int skip_record = 0;
1628 struct session *se = client_get_session(cl);
1629 struct conf_service *service = se->service;
1630 NMEM nmem_tmp = nmem_create();
1631 struct session_database *sdb = client_get_database(cl);
1633 while (!skip_record)
1635 struct conf_metadata *ser_md = 0;
1636 struct record_metadata *rec_md = 0;
1641 const char *name = client_get_facet_limit_local(cl, sdb, &l, nmem_tmp, &num_v, &values);
1645 md_field_id = conf_service_metadata_field_id(service, name);
1646 if (md_field_id < 0)
1651 ser_md = &service->metadata[md_field_id];
1652 rec_md = record->metadata[md_field_id];
1653 yaz_log(YLOG_DEBUG, "check limit local %s", name);
1654 for (i = 0; i < num_v; )
1658 if (ser_md->type == Metadata_type_year
1659 || ser_md->type == Metadata_type_date)
1661 int y = atoi(values[i]);
1662 if (y >= rec_md->data.number.min
1663 && y <= rec_md->data.number.max)
1668 yaz_log(YLOG_DEBUG, "cmp: '%s' '%s'", rec_md->data.text.disp, values[i]);
1669 if (!strcmp(rec_md->data.text.disp, values[i]))
1671 // Value equals, should not be filtered.
1675 rec_md = rec_md->next;
1679 rec_md = record->metadata[md_field_id];
1683 // At end , not match
1690 nmem_destroy(nmem_tmp);
1694 static int ingest_to_cluster(struct client *cl,
1698 const char *mergekey_norm)
1703 struct session *se = client_get_session(cl);
1704 struct conf_service *service = se->service;
1705 int term_factor = 1;
1706 struct record_cluster *cluster;
1707 struct session_database *sdb = client_get_database(cl);
1708 struct record *record = record_create(se->nmem,
1709 service->num_metadata,
1710 service->num_sortkeys, cl,
1713 for (n = root->children; n; n = n->next)
1721 if (n->type != XML_ELEMENT_NODE)
1723 if (!strcmp((const char *) n->name, "metadata"))
1725 struct conf_metadata *ser_md = 0;
1726 struct record_metadata **wheretoput = 0;
1727 struct record_metadata *rec_md = 0;
1728 int md_field_id = -1;
1730 type = xmlGetProp(n, (xmlChar *) "type");
1731 value = xmlNodeListGetString(xdoc, n->children, 1);
1733 if (!type || !value || !*value)
1737 = conf_service_metadata_field_id(service, (const char *) type);
1738 if (md_field_id < 0)
1740 if (se->number_of_warnings_unknown_metadata == 0)
1742 session_log(se, YLOG_WARN,
1743 "Ignoring unknown metadata element: %s", type);
1745 se->number_of_warnings_unknown_metadata++;
1749 ser_md = &service->metadata[md_field_id];
1751 // non-merged metadata
1752 rec_md = record_metadata_init(se->nmem, (const char *) value,
1753 ser_md->type, n->properties);
1756 session_log(se, YLOG_WARN, "bad metadata data '%s' "
1757 "for element '%s'", value, type);
1760 wheretoput = &record->metadata[md_field_id];
1762 wheretoput = &(*wheretoput)->next;
1763 *wheretoput = rec_md;
1767 if (check_limit_local(cl, record, record_no))
1769 session_log(se, YLOG_LOG, "Facet filtered out record no %d from %s",
1770 record_no, sdb->database->id);
1777 cluster = reclist_insert(se->reclist, service, record,
1778 mergekey_norm, &se->total_merged);
1783 const char *use_term_factor_str =
1784 session_setting_oneval(sdb, PZ_TERMLIST_TERM_FACTOR);
1785 if (use_term_factor_str && use_term_factor_str[0] == '1')
1787 int maxrecs = client_get_maxrecs(cl);
1788 int hits = (int) client_get_hits(cl);
1789 term_factor = MAX(hits, maxrecs) / MAX(1, maxrecs);
1790 assert(term_factor >= 1);
1791 yaz_log(YLOG_DEBUG, "Using term factor: %d (%d / %d)", term_factor, MAX(hits, maxrecs), MAX(1, maxrecs));
1795 if (global_parameters.dump_records)
1796 session_log(se, YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1797 sdb->database->id, record_no);
1800 relevance_newrec(se->relevance, cluster);
1802 // now parsing XML record and adding data to cluster or record metadata
1803 for (n = root->children; n; n = n->next)
1805 pp2_charset_token_t prt;
1812 if (n->type != XML_ELEMENT_NODE)
1814 if (!strcmp((const char *) n->name, "metadata"))
1816 struct conf_metadata *ser_md = 0;
1817 struct conf_sortkey *ser_sk = 0;
1818 struct record_metadata **wheretoput = 0;
1819 struct record_metadata *rec_md = 0;
1820 int md_field_id = -1;
1821 int sk_field_id = -1;
1825 type = xmlGetProp(n, (xmlChar *) "type");
1826 value = xmlNodeListGetString(xdoc, n->children, 1);
1828 if (!type || !value || !*value)
1832 = conf_service_metadata_field_id(service, (const char *) type);
1833 if (md_field_id < 0)
1836 ser_md = &service->metadata[md_field_id];
1838 if (ser_md->sortkey_offset >= 0)
1840 sk_field_id = ser_md->sortkey_offset;
1841 ser_sk = &service->sortkeys[sk_field_id];
1845 rec_md = record_metadata_init(se->nmem, (const char *) value,
1850 xml_rank = xmlGetProp(n, (xmlChar *) "rank");
1851 rank = xml_rank ? (const char *) xml_rank : ser_md->rank;
1853 wheretoput = &cluster->metadata[md_field_id];
1855 // and polulate with data:
1856 // assign cluster or record based on merge action
1857 if (ser_md->merge == Metadata_merge_unique)
1861 if (!strcmp((const char *) (*wheretoput)->data.text.disp,
1862 rec_md->data.text.disp))
1864 wheretoput = &(*wheretoput)->next;
1867 *wheretoput = rec_md;
1869 else if (ser_md->merge == Metadata_merge_longest)
1872 || strlen(rec_md->data.text.disp)
1873 > strlen((*wheretoput)->data.text.disp))
1875 *wheretoput = rec_md;
1878 const char *sort_str = 0;
1880 ser_sk->type == Metadata_sortkey_skiparticle;
1882 if (!cluster->sortkeys[sk_field_id])
1883 cluster->sortkeys[sk_field_id] =
1884 nmem_malloc(se->nmem,
1885 sizeof(union data_types));
1888 pp2_charset_token_create(service->charsets, "sort");
1890 pp2_charset_token_first(prt, rec_md->data.text.disp,
1893 pp2_charset_token_next(prt);
1895 sort_str = pp2_get_sort(prt);
1897 cluster->sortkeys[sk_field_id]->text.disp =
1898 rec_md->data.text.disp;
1901 sort_str = rec_md->data.text.disp;
1902 session_log(se, YLOG_WARN,
1903 "Could not make sortkey. Bug #1858");
1905 cluster->sortkeys[sk_field_id]->text.sort =
1906 nmem_strdup(se->nmem, sort_str);
1907 pp2_charset_token_destroy(prt);
1911 else if (ser_md->merge == Metadata_merge_all)
1914 wheretoput = &(*wheretoput)->next;
1915 *wheretoput = rec_md;
1917 else if (ser_md->merge == Metadata_merge_range)
1921 *wheretoput = rec_md;
1923 cluster->sortkeys[sk_field_id]
1928 int this_min = rec_md->data.number.min;
1929 int this_max = rec_md->data.number.max;
1930 if (this_min < (*wheretoput)->data.number.min)
1931 (*wheretoput)->data.number.min = this_min;
1932 if (this_max > (*wheretoput)->data.number.max)
1933 (*wheretoput)->data.number.max = this_max;
1937 // ranking of _all_ fields enabled ...
1940 relevance_countwords(se->relevance, cluster,
1941 (char *) value, rank, ser_md->name);
1944 // construct facets ... unless the client already has reported them
1945 if (ser_md->termlist && !client_has_facet(cl, (char *) type))
1947 if (ser_md->type == Metadata_type_year)
1950 sprintf(year, "%d", rec_md->data.number.max);
1952 add_facet(se, (char *) type, year, term_factor);
1953 if (rec_md->data.number.max != rec_md->data.number.min)
1955 sprintf(year, "%d", rec_md->data.number.min);
1956 add_facet(se, (char *) type, year, term_factor);
1960 add_facet(se, (char *) type, (char *) value, term_factor);
1972 if (se->number_of_warnings_unknown_elements == 0)
1973 session_log(se, YLOG_WARN,
1974 "Unexpected element in internal record: %s", n->name);
1975 se->number_of_warnings_unknown_elements++;
1983 relevance_donerecord(se->relevance, cluster);
1984 se->total_records++;
1989 void session_log(struct session *s, int level, const char *fmt, ...)
1995 yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
1996 yaz_log(level, "Session %u: %s", s->session_id, buf);
2004 * c-file-style: "Stroustrup"
2005 * indent-tabs-mode: nil
2007 * vim: shiftwidth=4 tabstop=8 expandtab