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_FATAL, "Non-wellformed XML received from %s",
264 if (global_parameters.dump_records)
266 session_log(se, YLOG_LOG, "Un-normalized record from %s", db->id);
273 #define MAX_XSLT_ARGS 16
275 // Add static values from session database settings if applicable
276 static void insert_settings_parameters(struct session_database *sdb,
277 struct conf_service *service,
285 for (i = 0; i < service->num_metadata; i++)
287 struct conf_metadata *md = &service->metadata[i];
290 if (md->setting == Metadata_setting_parameter &&
291 (setting = settings_lookup_offset(service, md->name)) >= 0)
293 const char *val = session_setting_oneval(sdb, setting);
294 if (val && nparms < MAX_XSLT_ARGS)
297 int len = strlen(val);
298 buf = nmem_malloc(nmem, len + 3);
300 strcpy(buf + 1, val);
303 parms[offset++] = md->name;
304 parms[offset++] = buf;
312 // Add static values from session database settings if applicable
313 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
314 struct conf_service *service)
318 for (i = 0; i < service->num_metadata; i++)
320 struct conf_metadata *md = &service->metadata[i];
323 if (md->setting == Metadata_setting_postproc &&
324 (offset = settings_lookup_offset(service, md->name)) >= 0)
326 const char *val = session_setting_oneval(sdb, offset);
329 xmlNode *r = xmlDocGetRootElement(doc);
330 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
332 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
338 static xmlDoc *normalize_record(struct session *se,
339 struct session_database *sdb,
340 struct conf_service *service,
341 const char *rec, NMEM nmem)
343 xmlDoc *rdoc = record_to_xml(se, sdb, rec);
347 char *parms[MAX_XSLT_ARGS*2+1];
349 insert_settings_parameters(sdb, service, parms, nmem);
351 if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
353 session_log(se, YLOG_WARN, "Normalize failed from %s",
358 insert_settings_values(sdb, rdoc, service);
360 if (global_parameters.dump_records)
362 session_log(se, YLOG_LOG, "Normalized record from %s",
371 void session_settings_dump(struct session *se,
372 struct session_database *db,
377 int i, num = db->num_settings;
378 for (i = 0; i < num; i++)
380 struct setting *s = db->settings[i];
381 for (;s ; s = s->next)
383 wrbuf_puts(w, "<set name=\"");
384 wrbuf_xmlputs(w, s->name);
385 wrbuf_puts(w, "\" value=\"");
386 wrbuf_xmlputs(w, s->value);
387 wrbuf_puts(w, "\"/>");
395 // Retrieve first defined value for 'name' for given database.
396 // Will be extended to take into account user associated with session
397 const char *session_setting_oneval(struct session_database *db, int offset)
399 if (offset >= db->num_settings || !db->settings[offset])
401 return db->settings[offset]->value;
404 // Prepare XSLT stylesheets for record normalization
405 // Structures are allocated on the session_wide nmem to avoid having
406 // to recompute this for every search. This would lead
407 // to leaking if a single session was to repeatedly change the PZ_XSLT
408 // setting. However, this is not a realistic use scenario.
409 static int prepare_map(struct session *se, struct session_database *sdb)
411 if (sdb->settings && !sdb->map)
415 if (sdb->settings[PZ_XSLT] &&
416 (s = session_setting_oneval(sdb, PZ_XSLT)))
418 char auto_stylesheet[256];
420 if (!strcmp(s, "auto"))
422 const char *request_syntax = session_setting_oneval(
423 sdb, PZ_REQUESTSYNTAX);
427 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
428 "%s.xsl", request_syntax);
429 for (cp = auto_stylesheet; *cp; cp++)
431 /* deliberately only consider ASCII */
432 if (*cp > 32 && *cp < 127)
439 session_log(se, YLOG_WARN,
440 "No pz:requestsyntax for auto stylesheet");
443 sdb->map = normalize_cache_get(se->normalize_cache,
452 // called if watch should be removed because http_channel is to be destroyed
453 static void session_watch_cancel(void *data, struct http_channel *c,
456 struct session_watchentry *ent = data;
463 // set watch. Returns 0=OK, -1 if watch is already set
464 int session_set_watch(struct session *s, int what,
465 session_watchfun fun, void *data,
466 struct http_channel *chan)
469 session_enter(s, "session_set_watch");
470 if (s->watchlist[what].fun)
475 s->watchlist[what].fun = fun;
476 s->watchlist[what].data = data;
477 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
478 session_watch_cancel);
481 session_leave(s, "session_set_watch");
485 void session_alert_watch(struct session *s, int what)
488 session_enter(s, "session_alert_watch");
489 if (s->watchlist[what].fun)
491 /* our watch is no longer associated with http_channel */
493 session_watchfun fun;
495 http_remove_observer(s->watchlist[what].obs);
496 fun = s->watchlist[what].fun;
497 data = s->watchlist[what].data;
499 /* reset watch before fun is invoked - in case fun wants to set
501 s->watchlist[what].fun = 0;
502 s->watchlist[what].data = 0;
503 s->watchlist[what].obs = 0;
505 session_leave(s, "session_alert_watch");
506 session_log(s, YLOG_DEBUG,
507 "Alert Watch: %d calling function: %p", what, fun);
511 session_leave(s,"session_alert_watch");
514 //callback for grep_databases
515 static void select_targets_callback(struct session *se,
516 struct session_database *db)
519 struct client_list *l;
521 for (l = se->clients_cached; l; l = l->next)
522 if (client_get_database(l->client) == db)
529 cl = client_create(db->database->id);
530 client_set_database(cl, db);
532 l = xmalloc(sizeof(*l));
534 l->next = se->clients_cached;
535 se->clients_cached = l;
537 /* set session always. If may be 0 if client is not active */
538 client_set_session(cl, se);
540 l = xmalloc(sizeof(*l));
542 l->next = se->clients_active;
543 se->clients_active = l;
546 static void session_reset_active_clients(struct session *se,
547 struct client_list *new_list)
549 struct client_list *l;
551 session_enter(se, "session_reset_active_clients");
552 l = se->clients_active;
553 se->clients_active = new_list;
554 session_leave(se, "session_reset_active_clients");
558 struct client_list *l_next = l->next;
560 client_lock(l->client);
561 client_set_session(l->client, 0); /* mark client inactive */
562 client_unlock(l->client);
569 static void session_remove_cached_clients(struct session *se)
571 struct client_list *l;
573 session_reset_active_clients(se, 0);
575 session_enter(se, "session_remove_cached_clients");
576 l = se->clients_cached;
577 se->clients_cached = 0;
578 session_leave(se, "session_remove_cached_clients");
582 struct client_list *l_next = l->next;
583 client_lock(l->client);
584 client_set_session(l->client, 0);
585 client_set_database(l->client, 0);
586 client_unlock(l->client);
587 client_destroy(l->client);
593 // Associates a set of clients with a session;
594 // Note: Session-databases represent databases with per-session
596 static int select_targets(struct session *se, const char *filter)
598 return session_grep_databases(se, filter, select_targets_callback);
601 int session_active_clients(struct session *s)
603 struct client_list *l;
606 for (l = s->clients_active; l; l = l->next)
607 if (client_is_active(l->client))
613 int session_is_preferred_clients_ready(struct session *s)
615 struct client_list *l;
618 for (l = s->clients_active; l; l = l->next)
619 if (client_is_active_preferred(l->client))
621 session_log(s, YLOG_DEBUG, "Has %d active preferred clients.", res);
625 static void session_clear_set(struct session *se, struct reclist_sortparms *sp)
627 reclist_destroy(se->reclist);
629 if (nmem_total(se->nmem))
630 session_log(se, YLOG_DEBUG, "NMEN operation usage %zd",
631 nmem_total(se->nmem));
632 nmem_reset(se->nmem);
633 se->total_records = se->total_merged = 0;
634 se->num_termlists = 0;
636 /* reset list of sorted results and clear to relevance search */
637 se->sorted_results = nmem_malloc(se->nmem, sizeof(*se->sorted_results));
638 se->sorted_results->name = nmem_strdup(se->nmem, sp->name);
639 se->sorted_results->increasing = sp->increasing;
640 se->sorted_results->type = sp->type;
641 se->sorted_results->next = 0;
643 session_log(se, YLOG_DEBUG, "clear_set session_sort: field=%s increasing=%d type=%d configured",
644 sp->name, sp->increasing, sp->type);
646 se->reclist = reclist_create(se->nmem);
649 static void session_sort_unlocked(struct session *se, struct reclist_sortparms *sp)
651 struct reclist_sortparms *sr;
652 struct client_list *l;
653 const char *field = sp->name;
654 int increasing = sp->increasing;
656 int clients_research = 0;
658 yaz_log(YLOG_LOG, "session_sort field=%s increasing=%d type=%d", field, increasing, type);
659 /* see if we already have sorted for this criteria */
660 for (sr = se->sorted_results; sr; sr = sr->next)
662 if (!reclist_sortparms_cmp(sr,sp))
667 session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d already fetched",
668 field, increasing, type);
671 session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d must fetch",
672 field, increasing, type);
674 // We need to reset reclist on every sort that changes the records, not just for position
675 // So if just one client requires new searching, we need to clear set.
676 // Ask each of the client if sorting requires re-search due to native sort
677 // If it does it will require us to
678 for (l = se->clients_active; l; l = l->next)
680 struct client *cl = l->client;
681 // Assume no re-search is required.
682 client_parse_init(cl, 1);
683 clients_research += client_parse_sort(cl, sp);
685 if (clients_research) {
686 yaz_log(YLOG_DEBUG, "Reset results due to %d clients researching", clients_research);
687 session_clear_set(se, sp);
690 // A new sorting based on same record set
691 sr = nmem_malloc(se->nmem, sizeof(*sr));
692 sr->name = nmem_strdup(se->nmem, field);
693 sr->increasing = increasing;
695 sr->next = se->sorted_results;
696 se->sorted_results = sr;
697 session_log(se, YLOG_DEBUG, "No research/ingesting done");
700 session_log(se, YLOG_DEBUG, "Re- search/ingesting for clients due to change in sort order");
702 for (l = se->clients_active; l; l = l->next)
704 struct client *cl = l->client;
705 if (client_get_state(cl) == Client_Connecting ||
706 client_get_state(cl) == Client_Idle ||
707 client_get_state(cl) == Client_Working) {
708 client_start_search(cl);
711 yaz_log(YLOG_DEBUG, "Client %s: No re-start/ingest in show. Wrong client state: %d",
712 client_get_id(cl), client_get_state(cl));
718 void session_sort(struct session *se, struct reclist_sortparms *sp) {
719 //session_enter(se, "session_sort");
720 session_sort_unlocked(se, sp);
721 //session_leave(se, "session_sort");
725 enum pazpar2_error_code session_search(struct session *se,
727 const char *startrecs,
731 const char **addinfo,
732 struct reclist_sortparms *sp)
734 int live_channels = 0;
736 int no_failed_query = 0;
737 int no_failed_limit = 0;
738 struct client_list *l, *l0;
739 facet_limits_t facet_limits;
740 int same_sort_order = 0;
742 session_log(se, YLOG_DEBUG, "Search");
746 if (se->settings_modified) {
747 session_remove_cached_clients(se);
750 session_reset_active_clients(se, 0);
752 session_enter(se, "session_search");
753 se->settings_modified = 0;
755 if (se->sorted_results) {
756 if (!reclist_sortparms_cmp(se->sorted_results, sp))
759 session_clear_set(se, sp);
760 relevance_destroy(&se->relevance);
762 live_channels = select_targets(se, filter);
765 session_leave(se, "session_search");
766 return PAZPAR2_NO_TARGETS;
769 facet_limits = facet_limits_create(limit);
773 session_leave(se, "session_search");
774 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
777 l0 = se->clients_active;
778 se->clients_active = 0;
779 session_leave(se, "session_search");
781 for (l = l0; l; l = l->next)
784 struct client *cl = l->client;
785 client_parse_init(cl, 1);
786 if (prepare_map(se, client_get_database(cl)) < 0)
789 parse_ret = client_parse_query(cl, query, facet_limits, se->service->ccl_bibset);
792 else if (parse_ret == -2)
794 else if (parse_ret < 0)
795 no_working++; /* other error, such as bad CCL map */
798 client_parse_range(cl, startrecs, maxrecs);
799 client_parse_sort(cl, sp);
800 client_start_search(cl);
804 facet_limits_destroy(facet_limits);
805 session_reset_active_clients(se, l0);
809 if (no_failed_query > 0)
812 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
814 else if (no_failed_limit > 0)
817 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
820 return PAZPAR2_NO_TARGETS;
822 session_log(se, YLOG_LOG, "session_start_search done");
823 return PAZPAR2_NO_ERROR;
826 // Creates a new session_database object for a database
827 static void session_init_databases_fun(void *context, struct database *db)
829 struct session *se = (struct session *) context;
830 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
836 assert(db->settings);
837 new->settings = nmem_malloc(se->session_nmem,
838 sizeof(struct settings *) * db->num_settings);
839 new->num_settings = db->num_settings;
840 for (i = 0; i < db->num_settings; i++)
842 struct setting *setting = db->settings[i];
843 new->settings[i] = setting;
845 new->next = se->databases;
849 // Doesn't free memory associated with sdb -- nmem takes care of that
850 static void session_database_destroy(struct session_database *sdb)
855 // Initialize session_database list -- this represents this session's view
856 // of the database list -- subject to modification by the settings ws command
857 void session_init_databases(struct session *se)
860 predef_grep_databases(se, se->service, session_init_databases_fun);
863 // Probably session_init_databases_fun should be refactored instead of
865 static struct session_database *load_session_database(struct session *se,
868 struct database *db = new_database_inherit_settings(id, se->session_nmem, se->service->settings);
869 session_init_databases_fun((void*) se, db);
871 // New sdb is head of se->databases list
872 return se->databases;
875 // Find an existing session database. If not found, load it
876 static struct session_database *find_session_database(struct session *se,
879 struct session_database *sdb;
881 for (sdb = se->databases; sdb; sdb = sdb->next)
882 if (!strcmp(sdb->database->id, id))
884 return load_session_database(se, id);
887 // Apply a session override to a database
888 void session_apply_setting(struct session *se, char *dbname, char *setting,
891 struct session_database *sdb = find_session_database(se, dbname);
892 struct conf_service *service = se->service;
893 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
894 int offset = settings_create_offset(service, setting);
896 expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
899 new->target = dbname;
902 new->next = sdb->settings[offset];
903 sdb->settings[offset] = new;
905 se->settings_modified = 1;
907 // Force later recompute of settings-driven data structures
908 // (happens when a search starts and client connections are prepared)
920 void session_destroy(struct session *se)
922 struct session_database *sdb;
923 session_log(se, YLOG_DEBUG, "Destroying");
925 session_remove_cached_clients(se);
927 for (sdb = se->databases; sdb; sdb = sdb->next)
928 session_database_destroy(sdb);
929 normalize_cache_destroy(se->normalize_cache);
930 relevance_destroy(&se->relevance);
931 reclist_destroy(se->reclist);
932 if (nmem_total(se->nmem))
933 session_log(se, YLOG_DEBUG, "NMEN operation usage %zd", nmem_total(se->nmem));
934 if (nmem_total(se->session_nmem))
935 session_log(se, YLOG_DEBUG, "NMEN session usage %zd", nmem_total(se->session_nmem));
936 nmem_destroy(se->nmem);
937 service_destroy(se->service);
938 yaz_mutex_destroy(&se->session_mutex);
941 size_t session_get_memory_status(struct session *session) {
945 session_enter(session, "session_get_memory_status");
946 session_nmem = nmem_total(session->nmem);
947 session_leave(session, "session_get_memory_status");
952 struct session *new_session(NMEM nmem, struct conf_service *service,
956 struct session *session = nmem_malloc(nmem, sizeof(*session));
960 sprintf(tmp_str, "session#%u", session_id);
962 session->session_id = session_id;
963 session_log(session, YLOG_DEBUG, "New");
964 session->service = service;
965 session->relevance = 0;
966 session->total_records = 0;
967 session->number_of_warnings_unknown_elements = 0;
968 session->number_of_warnings_unknown_metadata = 0;
969 session->num_termlists = 0;
970 session->reclist = 0;
971 session->clients_active = 0;
972 session->clients_cached = 0;
973 session->settings_modified = 0;
974 session->session_nmem = nmem;
975 session->nmem = nmem_create();
976 session->databases = 0;
977 session->sorted_results = 0;
979 for (i = 0; i <= SESSION_WATCH_MAX; i++)
981 session->watchlist[i].data = 0;
982 session->watchlist[i].fun = 0;
984 session->normalize_cache = normalize_cache_create();
985 session->session_mutex = 0;
986 pazpar2_mutex_create(&session->session_mutex, tmp_str);
991 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf);
993 static struct hitsbytarget *hitsbytarget_nb(struct session *se,
994 int *count, NMEM nmem)
996 struct hitsbytarget *res = 0;
997 struct client_list *l;
1000 for (l = se->clients_active; l; l = l->next)
1003 res = nmem_malloc(nmem, sizeof(*res) * sz);
1005 for (l = se->clients_active; l; l = l->next)
1007 struct client *cl = l->client;
1008 WRBUF w = wrbuf_alloc();
1009 const char *name = session_setting_oneval(client_get_database(cl),
1012 res[*count].id = client_get_id(cl);
1013 res[*count].name = *name ? name : "Unknown";
1014 res[*count].hits = client_get_hits(cl);
1015 res[*count].approximation = client_get_approximation(cl);
1016 res[*count].records = client_get_num_records(cl);
1017 res[*count].filtered = client_get_num_records_filtered(cl);
1018 res[*count].diagnostic =
1019 client_get_diagnostic(cl, &res[*count].addinfo);
1020 res[*count].state = client_get_state_str(cl);
1021 res[*count].connected = client_get_connection(cl) ? 1 : 0;
1022 session_settings_dump(se, client_get_database(cl), w);
1023 res[*count].settings_xml = nmem_strdup(nmem, wrbuf_cstr(w));
1026 res[*count].suggestions_xml = nmem_strdup(nmem, client_get_suggestions_xml(cl, w));
1033 struct hitsbytarget *get_hitsbytarget(struct session *se, int *count, NMEM nmem)
1035 struct hitsbytarget *p;
1036 session_enter(se, "get_hitsbytarget");
1037 p = hitsbytarget_nb(se, count, nmem);
1038 session_leave(se, "get_hitsbytarget");
1042 // Compares two hitsbytarget nodes by hitcount
1043 static int cmp_ht(const void *p1, const void *p2)
1045 const struct hitsbytarget *h1 = p1;
1046 const struct hitsbytarget *h2 = p2;
1047 return h2->hits - h1->hits;
1050 // Compares two hitsbytarget nodes by hitcount
1051 static int cmp_ht_approx(const void *p1, const void *p2)
1053 const struct hitsbytarget *h1 = p1;
1054 const struct hitsbytarget *h2 = p2;
1055 return h2->approximation - h1->approximation;
1058 static int targets_termlist_nb(WRBUF wrbuf, struct session *se, int num,
1059 NMEM nmem, int version)
1061 struct hitsbytarget *ht;
1064 ht = hitsbytarget_nb(se, &count, nmem);
1066 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht_approx);
1068 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
1069 for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
1072 // do only print terms which have display names
1074 wrbuf_puts(wrbuf, "<term>\n");
1076 wrbuf_puts(wrbuf, "<id>");
1077 wrbuf_xmlputs(wrbuf, ht[i].id);
1078 wrbuf_puts(wrbuf, "</id>\n");
1080 wrbuf_puts(wrbuf, "<name>");
1081 if (!ht[i].name || !ht[i].name[0])
1082 wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
1084 wrbuf_xmlputs(wrbuf, ht[i].name);
1085 wrbuf_puts(wrbuf, "</name>\n");
1087 wrbuf_printf(wrbuf, "<frequency>" ODR_INT_PRINTF "</frequency>\n",
1091 // Should not print if we know it isn't a approximation.
1092 wrbuf_printf(wrbuf, "<approximation>" ODR_INT_PRINTF "</approximation>\n", ht[i].approximation);
1093 wrbuf_printf(wrbuf, "<records>%d</records>\n", ht[i].records - ht[i].filtered);
1094 wrbuf_printf(wrbuf, "<filtered>%d</filtered>\n", ht[i].filtered);
1097 wrbuf_puts(wrbuf, "<state>");
1098 wrbuf_xmlputs(wrbuf, ht[i].state);
1099 wrbuf_puts(wrbuf, "</state>\n");
1101 wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
1103 wrbuf_puts(wrbuf, "</term>\n");
1108 void perform_termlist(struct http_channel *c, struct session *se,
1109 const char *name, int num, int version)
1112 NMEM nmem_tmp = nmem_create();
1119 nmem_strsplit(nmem_tmp, ",", name, &names, &num_names);
1121 session_enter(se, "perform_termlist");
1123 for (j = 0; j < num_names; j++)
1126 int must_generate_empty = 1; /* bug 5350 */
1128 for (i = 0; i < se->num_termlists; i++)
1130 tname = se->termlists[i].name;
1131 if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
1133 struct termlist_score **p = 0;
1136 wrbuf_puts(c->wrbuf, "<list name=\"");
1137 wrbuf_xmlputs(c->wrbuf, tname);
1138 wrbuf_puts(c->wrbuf, "\">\n");
1139 must_generate_empty = 0;
1141 p = termlist_highscore(se->termlists[i].termlist, &len,
1146 for (i = 0; i < len && i < num; i++)
1148 // prevent sending empty term elements
1149 if (!p[i]->display_term || !p[i]->display_term[0])
1152 wrbuf_puts(c->wrbuf, "<term>");
1153 wrbuf_puts(c->wrbuf, "<name>");
1154 wrbuf_xmlputs(c->wrbuf, p[i]->display_term);
1155 wrbuf_puts(c->wrbuf, "</name>");
1157 wrbuf_printf(c->wrbuf,
1158 "<frequency>%d</frequency>",
1160 wrbuf_puts(c->wrbuf, "</term>\n");
1163 wrbuf_puts(c->wrbuf, "</list>\n");
1167 if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
1169 wrbuf_puts(c->wrbuf, "<list name=\"");
1170 wrbuf_xmlputs(c->wrbuf, tname);
1171 wrbuf_puts(c->wrbuf, "\">\n");
1173 targets_termlist_nb(c->wrbuf, se, num, c->nmem, version);
1174 wrbuf_puts(c->wrbuf, "</list>\n");
1175 must_generate_empty = 0;
1177 if (must_generate_empty)
1179 wrbuf_puts(c->wrbuf, "<list name=\"");
1180 wrbuf_xmlputs(c->wrbuf, names[j]);
1181 wrbuf_puts(c->wrbuf, "\"/>\n");
1184 session_leave(se, "perform_termlist");
1185 nmem_destroy(nmem_tmp);
1188 #ifdef MISSING_HEADERS
1189 void report_nmem_stats(void)
1191 size_t in_use, is_free;
1193 nmem_get_memory_in_use(&in_use);
1194 nmem_get_memory_free(&is_free);
1196 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
1197 (long) in_use, (long) is_free);
1201 struct record_cluster *show_single_start(struct session *se, const char *id,
1202 struct record_cluster **prev_r,
1203 struct record_cluster **next_r)
1205 struct record_cluster *r = 0;
1207 session_enter(se, "show_single_start");
1212 reclist_enter(se->reclist);
1213 while ((r = reclist_read_record(se->reclist)))
1215 if (!strcmp(r->recid, id))
1217 *next_r = reclist_read_record(se->reclist);
1222 reclist_leave(se->reclist);
1225 session_leave(se, "show_single_start");
1229 void show_single_stop(struct session *se, struct record_cluster *rec)
1231 session_leave(se, "show_single_stop");
1234 struct record_cluster **show_range_start(struct session *se,
1235 struct reclist_sortparms *sp,
1236 int start, int *num, int *total, Odr_int *sumhits, Odr_int *approx_hits)
1238 struct record_cluster **recs;
1239 struct reclist_sortparms *spp;
1242 yaz_timing_t t = yaz_timing_create();
1244 session_enter(se, "show_range_start");
1245 recs = nmem_malloc(se->nmem, *num * sizeof(struct record_cluster *));
1256 struct client_list *l;
1258 for (spp = sp; spp; spp = spp->next)
1259 if (spp->type == Metadata_sortkey_relevance)
1261 relevance_prepare_read(se->relevance, se->reclist);
1264 reclist_sort(se->reclist, sp);
1266 reclist_enter(se->reclist);
1267 *total = reclist_get_num_records(se->reclist);
1271 for (l = se->clients_active; l; l = l->next) {
1272 *sumhits += client_get_hits(l->client);
1273 *approx_hits += client_get_approximation(l->client);
1275 for (i = 0; i < start; i++)
1276 if (!reclist_read_record(se->reclist))
1283 for (i = 0; i < *num; i++)
1285 struct record_cluster *r = reclist_read_record(se->reclist);
1293 reclist_leave(se->reclist);
1297 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
1298 yaz_timing_get_real(t), yaz_timing_get_user(t),
1299 yaz_timing_get_sys(t));
1300 yaz_timing_destroy(&t);
1305 void show_range_stop(struct session *se, struct record_cluster **recs)
1307 session_leave(se, "show_range_stop");
1310 void statistics(struct session *se, struct statistics *stat)
1312 struct client_list *l;
1315 memset(stat, 0, sizeof(*stat));
1317 for (l = se->clients_active; l; l = l->next)
1319 struct client *cl = l->client;
1320 if (!client_get_connection(cl))
1321 stat->num_no_connection++;
1322 stat->num_hits += client_get_hits(cl);
1323 switch (client_get_state(cl))
1325 case Client_Connecting: stat->num_connecting++; break;
1326 case Client_Working: stat->num_working++; break;
1327 case Client_Idle: stat->num_idle++; break;
1328 case Client_Failed: stat->num_failed++; break;
1329 case Client_Error: stat->num_error++; break;
1334 stat->num_records = se->total_records;
1336 stat->num_clients = count;
1339 static struct record_metadata *record_metadata_init(
1340 NMEM nmem, const char *value, enum conf_metadata_type type,
1341 struct _xmlAttr *attr)
1343 struct record_metadata *rec_md = record_metadata_create(nmem);
1344 struct record_metadata_attr **attrp = &rec_md->attributes;
1346 for (; attr; attr = attr->next)
1348 if (attr->children && attr->children->content)
1350 if (strcmp((const char *) attr->name, "type"))
1351 { /* skip the "type" attribute.. Its value is already part of
1352 the element in output (md-%s) and so repeating it here
1354 *attrp = nmem_malloc(nmem, sizeof(**attrp));
1356 nmem_strdup(nmem, (const char *) attr->name);
1358 nmem_strdup(nmem, (const char *) attr->children->content);
1359 attrp = &(*attrp)->next;
1365 if (type == Metadata_type_generic)
1367 char *p = nmem_strdup(nmem, value);
1369 p = normalize7bit_generic(p, " ,/.:([");
1371 rec_md->data.text.disp = p;
1372 rec_md->data.text.sort = 0;
1374 else if (type == Metadata_type_year || type == Metadata_type_date)
1379 if (type == Metadata_type_date)
1381 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
1384 rec_md->data.number.min = first;
1385 rec_md->data.number.max = last;
1392 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
1393 struct conf_service *service, WRBUF norm_wr)
1397 for (n = root->children; n; n = n->next)
1399 if (n->type != XML_ELEMENT_NODE)
1401 if (!strcmp((const char *) n->name, "metadata"))
1403 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1405 yaz_log(YLOG_FATAL, "Missing type attribute on metadata element. Skipping!");
1407 else if (!strcmp(name, (const char *) type))
1409 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1412 const char *norm_str;
1413 pp2_charset_token_t prt =
1414 pp2_charset_token_create(service->charsets, "mergekey");
1416 pp2_charset_token_first(prt, (const char *) value, 0);
1417 if (wrbuf_len(norm_wr) > 0)
1418 wrbuf_puts(norm_wr, " ");
1419 wrbuf_puts(norm_wr, name);
1421 pp2_charset_token_next(prt)))
1425 wrbuf_puts(norm_wr, " ");
1426 wrbuf_puts(norm_wr, norm_str);
1430 pp2_charset_token_destroy(prt);
1440 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
1441 struct conf_service *service, NMEM nmem)
1443 char *mergekey_norm = 0;
1444 xmlNode *root = xmlDocGetRootElement(doc);
1445 WRBUF norm_wr = wrbuf_alloc();
1447 /* consider mergekey from XSL first */
1448 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
1451 const char *norm_str;
1452 pp2_charset_token_t prt =
1453 pp2_charset_token_create(service->charsets, "mergekey");
1455 pp2_charset_token_first(prt, (const char *) mergekey, 0);
1456 while ((norm_str = pp2_charset_token_next(prt)))
1460 if (wrbuf_len(norm_wr))
1461 wrbuf_puts(norm_wr, " ");
1462 wrbuf_puts(norm_wr, norm_str);
1465 pp2_charset_token_destroy(prt);
1470 /* no mergekey defined in XSL. Look for mergekey metadata instead */
1472 for (field_id = 0; field_id < service->num_metadata; field_id++)
1474 struct conf_metadata *ser_md = &service->metadata[field_id];
1475 if (ser_md->mergekey != Metadata_mergekey_no)
1477 int r = get_mergekey_from_doc(doc, root, ser_md->name,
1479 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
1481 /* no mergekey on this one and it is required..
1482 Generate unique key instead */
1483 wrbuf_rewind(norm_wr);
1490 /* generate unique key if none is not generated already or is empty */
1491 if (wrbuf_len(norm_wr) == 0)
1493 wrbuf_printf(norm_wr, "position: %s-%d",
1494 client_get_id(cl), record_no);
1498 const char *lead = "content: ";
1499 wrbuf_insert(norm_wr, 0, lead, strlen(lead));
1501 if (wrbuf_len(norm_wr) > 0)
1502 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1503 wrbuf_destroy(norm_wr);
1504 return mergekey_norm;
1507 /** \brief see if metadata for pz:recordfilter exists
1508 \param root xml root element of normalized record
1509 \param sdb session database for client
1510 \retval 0 if there is no metadata for pz:recordfilter
1511 \retval 1 if there is metadata for pz:recordfilter
1513 If there is no pz:recordfilter defined, this function returns 1
1517 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1522 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1527 for (n = root->children; n; n = n->next)
1529 if (n->type != XML_ELEMENT_NODE)
1531 if (!strcmp((const char *) n->name, "metadata"))
1533 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1540 if ((eq = strchr(s, '=')))
1542 else if ((eq = strchr(s, '~')))
1548 if (len == strlen((const char *)type) &&
1549 !memcmp((const char *) type, s, len))
1551 xmlChar *value = xmlNodeGetContent(n);
1552 if (value && *value)
1555 (substring && strstr((const char *) value, eq+1)) ||
1556 (!substring && !strcmp((const char *) value, eq + 1)))
1569 static int ingest_to_cluster(struct client *cl,
1573 const char *mergekey_norm);
1575 /** \brief ingest XML record
1576 \param cl client holds the result set for record
1577 \param rec record buffer (0 terminated)
1578 \param record_no record position (1, 2, ..)
1579 \param nmem working NMEM
1584 int ingest_record(struct client *cl, const char *rec,
1585 int record_no, NMEM nmem)
1587 struct session *se = client_get_session(cl);
1589 struct session_database *sdb = client_get_database(cl);
1590 struct conf_service *service = se->service;
1591 xmlDoc *xdoc = normalize_record(se, sdb, service, rec, nmem);
1593 const char *mergekey_norm;
1598 root = xmlDocGetRootElement(xdoc);
1600 if (!check_record_filter(root, sdb))
1602 session_log(se, YLOG_LOG, "Filtered out record no %d from %s", record_no, sdb->database->id);
1607 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, nmem);
1610 session_log(se, YLOG_WARN, "Got no mergekey");
1614 session_enter(se, "ingest_record");
1615 if (client_get_session(cl) == se)
1616 ret = ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
1617 session_leave(se, "ingest_record");
1623 // Skip record on non-zero
1624 static int check_limit_local(struct client *cl,
1625 struct record *record,
1628 int skip_record = 0;
1629 struct session *se = client_get_session(cl);
1630 struct conf_service *service = se->service;
1631 NMEM nmem_tmp = nmem_create();
1632 struct session_database *sdb = client_get_database(cl);
1634 while (!skip_record)
1636 struct conf_metadata *ser_md = 0;
1637 struct record_metadata *rec_md = 0;
1642 const char *name = client_get_facet_limit_local(cl, sdb, &l, nmem_tmp, &num_v, &values);
1646 md_field_id = conf_service_metadata_field_id(service, name);
1647 if (md_field_id < 0)
1652 ser_md = &service->metadata[md_field_id];
1653 rec_md = record->metadata[md_field_id];
1654 yaz_log(YLOG_DEBUG, "check limit local %s", name);
1655 for (i = 0; i < num_v; )
1659 if (ser_md->type == Metadata_type_year
1660 || ser_md->type == Metadata_type_date)
1662 int y = atoi(values[i]);
1663 if (y >= rec_md->data.number.min
1664 && y <= rec_md->data.number.max)
1669 yaz_log(YLOG_DEBUG, "cmp: '%s' '%s'", rec_md->data.text.disp, values[i]);
1670 if (!strcmp(rec_md->data.text.disp, values[i]))
1672 // Value equals, should not be filtered.
1676 rec_md = rec_md->next;
1680 rec_md = record->metadata[md_field_id];
1684 // At end , not match
1691 nmem_destroy(nmem_tmp);
1695 static int ingest_to_cluster(struct client *cl,
1699 const char *mergekey_norm)
1704 struct session *se = client_get_session(cl);
1705 struct conf_service *service = se->service;
1706 int term_factor = 1;
1707 struct record_cluster *cluster;
1708 struct session_database *sdb = client_get_database(cl);
1709 struct record *record = record_create(se->nmem,
1710 service->num_metadata,
1711 service->num_sortkeys, cl,
1714 for (n = root->children; n; n = n->next)
1722 if (n->type != XML_ELEMENT_NODE)
1724 if (!strcmp((const char *) n->name, "metadata"))
1726 struct conf_metadata *ser_md = 0;
1727 struct record_metadata **wheretoput = 0;
1728 struct record_metadata *rec_md = 0;
1729 int md_field_id = -1;
1731 type = xmlGetProp(n, (xmlChar *) "type");
1732 value = xmlNodeListGetString(xdoc, n->children, 1);
1734 if (!type || !value || !*value)
1738 = conf_service_metadata_field_id(service, (const char *) type);
1739 if (md_field_id < 0)
1741 if (se->number_of_warnings_unknown_metadata == 0)
1743 session_log(se, YLOG_WARN,
1744 "Ignoring unknown metadata element: %s", type);
1746 se->number_of_warnings_unknown_metadata++;
1750 ser_md = &service->metadata[md_field_id];
1752 // non-merged metadata
1753 rec_md = record_metadata_init(se->nmem, (const char *) value,
1754 ser_md->type, n->properties);
1757 session_log(se, YLOG_WARN, "bad metadata data '%s' "
1758 "for element '%s'", value, type);
1761 wheretoput = &record->metadata[md_field_id];
1763 wheretoput = &(*wheretoput)->next;
1764 *wheretoput = rec_md;
1768 if (check_limit_local(cl, record, record_no))
1770 session_log(se, YLOG_LOG, "Facet filtered out record no %d from %s",
1771 record_no, sdb->database->id);
1778 cluster = reclist_insert(se->reclist, service, record,
1779 mergekey_norm, &se->total_merged);
1784 const char *use_term_factor_str =
1785 session_setting_oneval(sdb, PZ_TERMLIST_TERM_FACTOR);
1786 if (use_term_factor_str && use_term_factor_str[0] == '1')
1788 int maxrecs = client_get_maxrecs(cl);
1789 int hits = (int) client_get_hits(cl);
1790 term_factor = MAX(hits, maxrecs) / MAX(1, maxrecs);
1791 assert(term_factor >= 1);
1792 yaz_log(YLOG_DEBUG, "Using term factor: %d (%d / %d)", term_factor, MAX(hits, maxrecs), MAX(1, maxrecs));
1796 if (global_parameters.dump_records)
1797 session_log(se, YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1798 sdb->database->id, record_no);
1801 relevance_newrec(se->relevance, cluster);
1803 // now parsing XML record and adding data to cluster or record metadata
1804 for (n = root->children; n; n = n->next)
1806 pp2_charset_token_t prt;
1813 if (n->type != XML_ELEMENT_NODE)
1815 if (!strcmp((const char *) n->name, "metadata"))
1817 struct conf_metadata *ser_md = 0;
1818 struct conf_sortkey *ser_sk = 0;
1819 struct record_metadata **wheretoput = 0;
1820 struct record_metadata *rec_md = 0;
1821 int md_field_id = -1;
1822 int sk_field_id = -1;
1826 type = xmlGetProp(n, (xmlChar *) "type");
1827 value = xmlNodeListGetString(xdoc, n->children, 1);
1829 if (!type || !value || !*value)
1833 = conf_service_metadata_field_id(service, (const char *) type);
1834 if (md_field_id < 0)
1837 ser_md = &service->metadata[md_field_id];
1839 if (ser_md->sortkey_offset >= 0)
1841 sk_field_id = ser_md->sortkey_offset;
1842 ser_sk = &service->sortkeys[sk_field_id];
1846 rec_md = record_metadata_init(se->nmem, (const char *) value,
1851 xml_rank = xmlGetProp(n, (xmlChar *) "rank");
1852 rank = xml_rank ? (const char *) xml_rank : ser_md->rank;
1854 wheretoput = &cluster->metadata[md_field_id];
1856 // and polulate with data:
1857 // assign cluster or record based on merge action
1858 if (ser_md->merge == Metadata_merge_unique)
1862 if (!strcmp((const char *) (*wheretoput)->data.text.disp,
1863 rec_md->data.text.disp))
1865 wheretoput = &(*wheretoput)->next;
1868 *wheretoput = rec_md;
1870 else if (ser_md->merge == Metadata_merge_longest)
1873 || strlen(rec_md->data.text.disp)
1874 > strlen((*wheretoput)->data.text.disp))
1876 *wheretoput = rec_md;
1879 const char *sort_str = 0;
1881 ser_sk->type == Metadata_sortkey_skiparticle;
1883 if (!cluster->sortkeys[sk_field_id])
1884 cluster->sortkeys[sk_field_id] =
1885 nmem_malloc(se->nmem,
1886 sizeof(union data_types));
1889 pp2_charset_token_create(service->charsets, "sort");
1891 pp2_charset_token_first(prt, rec_md->data.text.disp,
1894 pp2_charset_token_next(prt);
1896 sort_str = pp2_get_sort(prt);
1898 cluster->sortkeys[sk_field_id]->text.disp =
1899 rec_md->data.text.disp;
1902 sort_str = rec_md->data.text.disp;
1903 session_log(se, YLOG_WARN,
1904 "Could not make sortkey. Bug #1858");
1906 cluster->sortkeys[sk_field_id]->text.sort =
1907 nmem_strdup(se->nmem, sort_str);
1908 pp2_charset_token_destroy(prt);
1912 else if (ser_md->merge == Metadata_merge_all)
1915 wheretoput = &(*wheretoput)->next;
1916 *wheretoput = rec_md;
1918 else if (ser_md->merge == Metadata_merge_range)
1922 *wheretoput = rec_md;
1924 cluster->sortkeys[sk_field_id]
1929 int this_min = rec_md->data.number.min;
1930 int this_max = rec_md->data.number.max;
1931 if (this_min < (*wheretoput)->data.number.min)
1932 (*wheretoput)->data.number.min = this_min;
1933 if (this_max > (*wheretoput)->data.number.max)
1934 (*wheretoput)->data.number.max = this_max;
1938 // ranking of _all_ fields enabled ...
1941 relevance_countwords(se->relevance, cluster,
1942 (char *) value, rank, ser_md->name);
1945 // construct facets ... unless the client already has reported them
1946 if (ser_md->termlist && !client_has_facet(cl, (char *) type))
1948 if (ser_md->type == Metadata_type_year)
1951 sprintf(year, "%d", rec_md->data.number.max);
1953 add_facet(se, (char *) type, year, term_factor);
1954 if (rec_md->data.number.max != rec_md->data.number.min)
1956 sprintf(year, "%d", rec_md->data.number.min);
1957 add_facet(se, (char *) type, year, term_factor);
1961 add_facet(se, (char *) type, (char *) value, term_factor);
1973 if (se->number_of_warnings_unknown_elements == 0)
1974 session_log(se, YLOG_WARN,
1975 "Unexpected element in internal record: %s", n->name);
1976 se->number_of_warnings_unknown_elements++;
1984 relevance_donerecord(se->relevance, cluster);
1985 se->total_records++;
1990 void session_log(struct session *s, int level, const char *fmt, ...)
1996 yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
1997 yaz_log(level, "Session %u: %s", s->session_id, buf);
2005 * c-file-style: "Stroustrup"
2006 * indent-tabs-mode: nil
2008 * vim: shiftwidth=4 tabstop=8 expandtab