1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) Index Data
3 * See the file LICENSE for details.
7 * \brief Implements ZOOM C interface.
18 #include <yaz/yaz-util.h>
19 #include <yaz/xmalloc.h>
20 #include <yaz/otherinfo.h>
22 #include <yaz/diagbib1.h>
23 #include <yaz/charneg.h>
24 #include <yaz/query-charset.h>
25 #include <yaz/snprintf.h>
26 #include <yaz/facet.h>
28 #include <yaz/shptr.h>
34 static int log_api0 = 0;
35 static int log_details0 = 0;
37 static void resultset_destroy(ZOOM_resultset r);
38 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
40 static void initlog(void)
42 static int log_level_initialized = 0;
44 if (!log_level_initialized)
46 log_api0 = yaz_log_module_level("zoom");
47 log_details0 = yaz_log_module_level("zoomdetails");
48 log_level_initialized = 1;
52 void ZOOM_connection_remove_tasks(ZOOM_connection c);
53 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri);
55 void ZOOM_set_dset_error(ZOOM_connection c, int error,
57 const char *addinfo, const char *addinfo2)
64 if (!c->diagset || strcmp(dset, c->diagset))
67 c->diagset = xstrdup(dset);
68 /* remove integer part from SRW diagset .. */
69 if ((cp = strrchr(c->diagset, '/')))
72 if (addinfo && addinfo2)
74 c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 3);
75 strcpy(c->addinfo, addinfo);
76 strcat(c->addinfo, ": ");
77 strcat(c->addinfo, addinfo2);
80 c->addinfo = xstrdup(addinfo);
81 if (error != ZOOM_ERROR_NONE)
83 yaz_log(c->log_api, "%p set_dset_error %s %s:%d %s %s",
84 c, c->host_port ? c->host_port : "<>", dset, error,
85 addinfo ? addinfo : "",
86 addinfo2 ? addinfo2 : "");
87 ZOOM_connection_remove_tasks(c);
91 int ZOOM_uri_to_code(const char *uri)
95 if ((cp = strrchr(uri, '/')))
100 void ZOOM_set_error(ZOOM_connection c, int error, const char *addinfo)
102 ZOOM_set_dset_error(c, error, "ZOOM", addinfo, 0);
105 static void clear_error(ZOOM_connection c)
108 * If an error is tied to an operation then it's ok to clear: for
109 * example, a diagnostic returned from a search is cleared by a
110 * subsequent search. However, problems such as Connection Lost
111 * or Init Refused are not cleared, because they are not
112 * recoverable: doing another search doesn't help.
115 ZOOM_connection_remove_events(c);
118 case ZOOM_ERROR_CONNECT:
119 case ZOOM_ERROR_MEMORY:
120 case ZOOM_ERROR_DECODE:
121 case ZOOM_ERROR_CONNECTION_LOST:
122 case ZOOM_ERROR_INIT:
123 case ZOOM_ERROR_INTERNAL:
124 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
127 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
131 void ZOOM_connection_show_task(ZOOM_task task)
135 case ZOOM_TASK_SEARCH:
136 yaz_log(YLOG_LOG, "search p=%p", task);
138 case ZOOM_TASK_CONNECT:
139 yaz_log(YLOG_LOG, "connect p=%p", task);
142 yaz_log(YLOG_LOG, "scan p=%p", task);
147 void ZOOM_connection_show_tasks(ZOOM_connection c)
150 yaz_log(YLOG_LOG, "connection p=%p tasks", c);
151 for (task = c->tasks; task; task = task->next)
152 ZOOM_connection_show_task(task);
155 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
157 ZOOM_task *taskp = &c->tasks;
159 taskp = &(*taskp)->next;
160 *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
161 (*taskp)->running = 0;
162 (*taskp)->which = which;
168 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
170 return c->tasks ? 0 : 1;
173 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
175 ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
177 task->next = c->tasks;
185 void ZOOM_connection_remove_task(ZOOM_connection c)
187 ZOOM_task task = c->tasks;
191 c->tasks = task->next;
194 case ZOOM_TASK_SEARCH:
195 resultset_destroy(task->u.search.resultset);
196 xfree(task->u.search.syntax);
197 xfree(task->u.search.elementSetName);
198 xfree(task->u.search.schema);
200 case ZOOM_TASK_CONNECT:
203 ZOOM_scanset_destroy(task->u.scan.scan);
205 case ZOOM_TASK_PACKAGE:
206 ZOOM_package_destroy(task->u.package);
209 resultset_destroy(task->u.sort.resultset);
210 ZOOM_query_destroy(task->u.sort.q);
219 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
220 ZOOM_connection_put_event(c, event);
225 void ZOOM_connection_remove_tasks(ZOOM_connection c)
228 ZOOM_connection_remove_task(c);
231 static void odr_wrbuf_write(ODR o, void *handle, int type,
232 const char *buf, int len)
234 WRBUF w = (WRBUF) handle;
235 wrbuf_write(w, buf, len);
238 ZOOM_API(ZOOM_connection)
239 ZOOM_connection_create(ZOOM_options options)
241 ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
245 c->log_api = log_api0;
246 c->log_details = log_details0;
248 yaz_log(c->log_api, "%p ZOOM_connection_create", c);
250 c->proto = PROTO_Z3950;
252 ZOOM_connection_set_mask(c, 0);
254 c->state = STATE_IDLE;
257 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
264 c->options = ZOOM_options_create_with_parent(options);
270 c->charset = c->lang = 0;
280 c->url_authentication = 0;
282 c->maximum_record_size = 0;
283 c->preferred_message_size = 0;
285 c->odr_in = odr_createmem(ODR_DECODE);
286 c->odr_out = odr_createmem(ODR_ENCODE);
291 c->support_named_resultsets = 0;
292 c->last_event = ZOOM_EVENT_NONE;
294 c->m_queue_front = 0;
301 c->saveAPDU_wrbuf = 0;
303 ZOOM_memcached_init(c);
307 ZOOM_API(void) ZOOM_connection_save_apdu_wrbuf(ZOOM_connection c, WRBUF w)
311 odr_destroy(c->odr_save);
316 c->odr_save = odr_createmem(ODR_PRINT);
317 odr_set_stream(c->odr_save, w, odr_wrbuf_write, 0);
321 /* set database names. Take local databases (if set); otherwise
322 take databases given in ZURL (if set); otherwise use Default */
323 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
326 char **databaseNames;
327 const char *cp = ZOOM_options_get(options, "databaseName");
329 if ((!cp || !*cp) && con->host_port)
330 cs_get_host_args(con->host_port, &cp);
333 nmem_strsplit(odr_getmem(odr), "+", cp, &databaseNames, num);
334 return databaseNames;
337 ZOOM_API(ZOOM_connection)
338 ZOOM_connection_new(const char *host, int portnum)
340 ZOOM_connection c = ZOOM_connection_create(0);
342 ZOOM_connection_connect(c, host, portnum);
346 static zoom_sru_mode get_sru_mode_from_string(const char *s)
349 return zoom_sru_soap;
350 if (!yaz_matchstr(s, "soap"))
351 return zoom_sru_soap;
352 else if (!yaz_matchstr(s, "get"))
354 else if (!yaz_matchstr(s, "post"))
355 return zoom_sru_post;
356 else if (!yaz_matchstr(s, "solr"))
357 return zoom_sru_solr;
358 return zoom_sru_error;
362 ZOOM_connection_connect(ZOOM_connection c,
363 const char *host, int portnum)
369 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
370 c, host ? host : "null", portnum);
372 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
373 ZOOM_connection_remove_tasks(c);
377 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
381 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
384 val = ZOOM_options_get(c->options, "proxy");
387 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
388 c->proxy = xstrdup(val);
393 val = ZOOM_options_get(c->options, "tproxy");
396 yaz_log(c->log_details, "%p ZOOM_connection_connect tproxy=%s", c, val);
397 c->tproxy = xstrdup(val);
402 val = ZOOM_options_get(c->options, "charset");
405 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
406 c->charset = xstrdup(val);
410 val = ZOOM_options_get(c->options, "lang");
413 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
414 c->lang = xstrdup(val);
422 const char *http_lead;
424 val = ZOOM_options_get(c->options, "sru");
425 if (val && *val && !strstr(host, "://"))
426 http_lead = "http://";
429 c->sru_mode = get_sru_mode_from_string(val);
434 sprintf(hostn, "%.80s:%d", host, portnum);
437 c->host_port = xmalloc(strlen(host) + strlen(http_lead) + 1);
438 strcpy(c->host_port, http_lead);
439 strcat(c->host_port, host);
444 * If the "<scheme>:" part of the host string is preceded by one
445 * or more comma-separated <name>=<value> pairs, these are taken
446 * to be options to be set on the connection object. Among other
447 * applications, this facility can be used to embed authentication
449 * user=admin,password=secret,tcp:localhost:9999
451 char *remainder = c->host_port;
452 char *pcolon = strchr(remainder, ':');
455 while ((pcomma = strchr(remainder, ',')) != 0 &&
456 (pcolon == 0 || pcomma < pcolon))
459 if ((pequals = strchr(remainder, '=')) != 0)
462 ZOOM_connection_option_set(c, remainder, pequals+1);
464 remainder = pcomma+1;
467 if (remainder != c->host_port)
469 remainder = xstrdup(remainder);
471 c->host_port = remainder;
475 xfree(c->sru_version);
476 val = ZOOM_options_get(c->options, "sru_version");
477 c->sru_version = xstrdup(val ? val : "1.2");
479 ZOOM_options_set(c->options, "host", c->host_port);
481 xfree(c->cookie_out);
483 val = ZOOM_options_get(c->options, "cookie");
486 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
487 c->cookie_out = xstrdup(val);
492 val = ZOOM_options_get(c->options, "clientIP");
495 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
497 c->client_IP = xstrdup(val);
502 val = ZOOM_options_get(c->options, "group");
504 c->group = xstrdup(val);
508 val = ZOOM_options_get(c->options, "user");
510 c->user = xstrdup(val);
514 val = ZOOM_options_get(c->options, "password");
516 val = ZOOM_options_get(c->options, "pass");
518 c->password = xstrdup(val);
520 val = ZOOM_options_get(c->options, "authenticationMode");
521 if (val && !strcmp(val, "url"))
522 c->url_authentication = 1;
524 c->url_authentication = 0;
526 c->maximum_record_size =
527 ZOOM_options_get_int(c->options, "maximumRecordSize", 64*1024*1024);
528 c->preferred_message_size =
529 ZOOM_options_get_int(c->options, "preferredMessageSize", 64*1024*1024);
531 c->async = ZOOM_options_get_bool(c->options, "async", 0);
533 yaz_cookies_destroy(c->cookies);
534 c->cookies = yaz_cookies_create();
536 if (ZOOM_memcached_configure(c))
538 ZOOM_connection_remove_tasks(c);
541 if (c->sru_mode == zoom_sru_error)
543 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, val);
544 ZOOM_connection_remove_tasks(c);
549 odr_destroy(c->odr_print);
551 val = ZOOM_options_get(c->options, "apdufile");
554 c->odr_print = odr_createmem(ODR_PRINT);
555 if (strcmp(val, "-"))
557 FILE *f = fopen(val, "a");
560 WRBUF w = wrbuf_alloc();
561 wrbuf_printf(w, "fopen: %s", val);
562 ZOOM_set_error(c, ZOOM_ERROR_INTERNAL, wrbuf_cstr(w));
566 odr_setprint(c->odr_print, f);
569 else if (ZOOM_options_get_bool(c->options, "apdulog", 0))
571 c->odr_print = odr_createmem(ODR_PRINT);
572 odr_setprint_noclose(c->odr_print, yaz_log_file());
575 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
576 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
580 while (ZOOM_event(1, &c))
585 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
589 /* remove ourselves from the resultsets in connection */
590 ZOOM_resultset *rp = &r->connection->resultsets;
593 assert(*rp); /* we must be in this list!! */
595 { /* OK, we're here - take us out of it */
606 ZOOM_connection_destroy(ZOOM_connection c)
611 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
613 ZOOM_memcached_destroy(c);
617 for (r = c->resultsets; r; r = r->next)
623 odr_destroy(c->odr_in);
624 odr_destroy(c->odr_out);
626 odr_destroy(c->odr_save);
628 odr_destroy(c->odr_print);
629 ZOOM_options_destroy(c->options);
630 ZOOM_connection_remove_tasks(c);
631 ZOOM_connection_remove_events(c);
637 xfree(c->cookie_out);
643 xfree(c->sru_version);
645 yaz_cookies_destroy(c->cookies);
646 wrbuf_destroy(c->saveAPDU_wrbuf);
650 void ZOOM_resultset_addref(ZOOM_resultset r)
654 yaz_mutex_enter(r->mutex);
656 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
658 yaz_mutex_leave(r->mutex);
662 static int g_resultsets = 0;
663 static YAZ_MUTEX g_resultset_mutex = 0;
665 /* TODO We need to initialize this before running threaded:
666 * call resultset_use(0) */
668 static int resultset_use(int delta) {
670 if (g_resultset_mutex == 0)
671 yaz_mutex_create(&g_resultset_mutex);
672 yaz_mutex_enter(g_resultset_mutex);
673 g_resultsets += delta;
674 resultset_count = g_resultsets;
675 yaz_mutex_leave(g_resultset_mutex);
676 return resultset_count;
679 int resultsets_count(void) {
680 return resultset_use(0);
683 ZOOM_resultset ZOOM_resultset_create(void)
686 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
690 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
693 r->odr = odr_createmem(ODR_DECODE);
697 for (i = 0; i<RECORD_HASH_SIZE; i++)
698 r->record_hash[i] = 0;
702 r->databaseNames = 0;
703 r->num_databaseNames = 0;
706 r->num_res_facets = 0;
709 yaz_mutex_create(&r->mutex);
712 WRBUF w = wrbuf_alloc();
713 YAZ_SHPTR_INIT(r->record_wrbuf, w);
722 ZOOM_API(ZOOM_resultset)
723 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
726 ZOOM_query s = ZOOM_query_create();
728 ZOOM_query_prefix(s, q);
730 r = ZOOM_connection_search(c, s);
731 ZOOM_query_destroy(s);
735 ZOOM_API(ZOOM_resultset)
736 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
738 ZOOM_resultset r = ZOOM_resultset_create();
741 const char *syntax, *elementSetName, *schema;
742 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
743 r->r_sort_spec = ZOOM_query_get_sortspec(q);
745 ZOOM_query_addref(q);
747 r->options = ZOOM_options_create_with_parent(c->options);
749 r->req_facets = odr_strdup_null(r->odr,
750 ZOOM_options_get(r->options, "facets"));
751 start = ZOOM_options_get_int(r->options, "start", 0);
752 count = ZOOM_options_get_int(r->options, "count", 0);
754 /* If "presentChunk" is defined use that; otherwise "step" */
755 const char *cp = ZOOM_options_get(r->options, "presentChunk");
756 r->step = ZOOM_options_get_int(r->options,
757 (cp != 0 ? "presentChunk": "step"), 0);
759 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
760 r->setname = odr_strdup_null(r->odr,
761 ZOOM_options_get(r->options, "setname"));
762 r->databaseNames = ZOOM_connection_get_databases(c, c->options,
763 &r->num_databaseNames,
766 r->next = c->resultsets;
769 ZOOM_memcached_resultset(r, q);
771 if (c->host_port && c->proto == PROTO_HTTP)
775 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
776 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
780 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
785 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
786 task->u.search.resultset = r;
787 task->u.search.start = start;
788 task->u.search.count = count;
790 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
791 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
792 elementSetName = ZOOM_options_get(r->options, "elementSetName");
793 task->u.search.elementSetName = elementSetName ?
794 xstrdup(elementSetName) : 0;
795 schema = ZOOM_options_get(r->options, "schema");
796 task->u.search.schema = schema ? xstrdup(schema) : 0;
798 ZOOM_resultset_addref(r);
802 while (ZOOM_event(1, &c))
809 ZOOM_resultset_sort(ZOOM_resultset r,
810 const char *sort_type, const char *sort_spec)
812 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
816 ZOOM_resultset_sort1(ZOOM_resultset r,
817 const char *sort_type, const char *sort_spec)
819 ZOOM_connection c = r->connection;
823 newq = ZOOM_query_create();
824 if (ZOOM_query_sortby(newq, sort_spec) < 0)
827 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
828 r, r, sort_type, sort_spec);
832 if (c->host_port && c->proto == PROTO_HTTP)
836 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
837 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
841 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
847 ZOOM_resultset_cache_reset(r);
848 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
849 task->u.sort.resultset = r;
850 task->u.sort.q = newq;
852 ZOOM_resultset_addref(r);
856 while (ZOOM_event(1, &c))
864 ZOOM_resultset_destroy(ZOOM_resultset r)
866 resultset_destroy(r);
869 static void resultset_destroy(ZOOM_resultset r)
873 yaz_mutex_enter(r->mutex);
875 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
877 if (r->refcount == 0)
879 yaz_mutex_leave(r->mutex);
881 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
882 ZOOM_resultset_cache_reset(r);
883 ZOOM_resultset_release(r);
884 ZOOM_query_destroy(r->query);
885 ZOOM_options_destroy(r->options);
887 yaz_mutex_destroy(&r->mutex);
889 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
891 wrbuf_destroy(r->mc_key);
896 yaz_mutex_leave(r->mutex);
900 ZOOM_resultset_size(ZOOM_resultset r)
905 int ZOOM_test_reconnect(ZOOM_connection c)
909 if (!c->reconnect_ok)
911 ZOOM_connection_close(c);
913 c->tasks->running = 0;
914 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
916 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
917 ZOOM_connection_put_event(c, event);
922 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
923 int force_sync, int start, int count)
928 const char *syntax, *elementSetName;
932 yaz_log(log_details0, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
933 " count=%d", r, force_sync, start, count);
938 if (c->host_port && c->proto == PROTO_HTTP)
942 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: no comstack", r);
943 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
947 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: prepare "
952 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
953 task->u.search.resultset = r;
954 task->u.search.start = start;
955 task->u.search.count = count;
957 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
958 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
959 elementSetName = ZOOM_options_get(r->options, "elementSetName");
960 task->u.search.elementSetName = elementSetName
961 ? xstrdup(elementSetName) : 0;
963 cp = ZOOM_options_get(r->options, "schema");
964 task->u.search.schema = cp ? xstrdup(cp) : 0;
966 ZOOM_resultset_addref(r);
968 if (!r->connection->async || force_sync)
969 while (r->connection && ZOOM_event(1, &r->connection))
974 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
975 size_t start, size_t count)
977 int force_present = 0;
981 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
982 r, r, (long) start, (long) count);
985 ZOOM_resultset_retrieve(r, force_present, start, count);
989 for (i = 0; i< count; i++)
990 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
995 ZOOM_resultset_facets_size(ZOOM_resultset r)
997 return r->num_res_facets;
1000 ZOOM_API(ZOOM_facet_field)
1001 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name)
1003 int num = r->num_res_facets;
1004 ZOOM_facet_field *facets = r->res_facets;
1006 for (i = 0; i < num; i++)
1007 if (!strcmp(facets[i]->facet_name, name))
1012 ZOOM_API(ZOOM_facet_field)
1013 ZOOM_resultset_get_facet_field_by_index(ZOOM_resultset r, int idx)
1015 int num = r->num_res_facets;
1016 ZOOM_facet_field *facets = r->res_facets;
1017 if (idx >= 0 && idx < num)
1022 ZOOM_API(ZOOM_facet_field *)
1023 ZOOM_resultset_facets(ZOOM_resultset r)
1025 return r->res_facets;
1028 ZOOM_API(const char**)
1029 ZOOM_resultset_facets_names(ZOOM_resultset r)
1031 return (const char **) r->facets_names;
1034 ZOOM_API(const char*)
1035 ZOOM_facet_field_name(ZOOM_facet_field field)
1037 return field->facet_name;
1041 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1043 return field->num_terms;
1046 ZOOM_API(const char*)
1047 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq)
1049 *freq = field->facet_terms[idx].frequency;
1050 return field->facet_terms[idx].term;
1054 static void get_cert(ZOOM_connection c)
1059 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1061 ZOOM_connection_option_setl(c, "sslPeerCert",
1062 cert_buf, cert_len);
1067 static zoom_ret do_connect_host(ZOOM_connection c,
1068 const char *logical_url);
1070 static zoom_ret do_connect(ZOOM_connection c)
1072 return do_connect_host(c, c->host_port);
1075 static zoom_ret do_connect_host(ZOOM_connection c, const char *logical_url)
1081 c->cs = cs_create_host_proxy(logical_url, CS_FLAGS_DNS_NO_BLOCK, &add,
1082 c->tproxy ? c->tproxy : c->proxy);
1084 if (c->cs && c->cs->protocol == PROTO_HTTP)
1087 c->proto = PROTO_HTTP;
1089 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1090 ZOOM_connection_close(c);
1091 return zoom_complete;
1096 int ret = cs_connect(c->cs, add);
1099 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1100 ZOOM_connection_put_event(c, event);
1102 if (c->proto == PROTO_Z3950)
1103 ZOOM_connection_Z3950_send_init(c);
1106 /* no init request for SRW .. */
1107 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1108 ZOOM_connection_remove_task(c);
1109 ZOOM_connection_set_mask(c, 0);
1111 if (c->cs && c->location)
1112 send_HTTP_redirect(c, c->location);
1114 ZOOM_connection_exec_task(c);
1116 c->state = STATE_ESTABLISHED;
1117 return zoom_pending;
1121 int mask = ZOOM_SELECT_EXCEPT;
1122 if (c->cs->io_pending & CS_WANT_WRITE)
1123 mask += ZOOM_SELECT_WRITE;
1124 if (c->cs->io_pending & CS_WANT_READ)
1125 mask += ZOOM_SELECT_READ;
1126 ZOOM_connection_set_mask(c, mask);
1127 c->state = STATE_CONNECTING;
1128 return zoom_pending;
1131 c->state = STATE_IDLE;
1132 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1133 return zoom_complete;
1136 /* returns 1 if PDU was sent OK (still pending )
1137 0 if PDU was not sent OK (nothing to wait for)
1140 ZOOM_API(ZOOM_record)
1141 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1143 const char *syntax =
1144 ZOOM_options_get(s->options, "preferredRecordSyntax");
1145 const char *elementSetName =
1146 ZOOM_options_get(s->options, "elementSetName");
1147 const char *schema =
1148 ZOOM_options_get(s->options, "schema");
1150 return ZOOM_record_cache_lookup_i(s, pos, syntax, elementSetName, schema);
1153 ZOOM_API(ZOOM_record)
1154 ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1156 ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1161 * MIKE: I think force_sync should always be zero, but I don't
1162 * want to make this change until I get the go-ahead from
1163 * Adam, in case something depends on the old synchronous
1167 if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1168 ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1169 rec = ZOOM_resultset_record_immediate(r, pos);
1174 ZOOM_API(ZOOM_scanset)
1175 ZOOM_connection_scan(ZOOM_connection c, const char *start)
1178 ZOOM_query q = ZOOM_query_create();
1180 ZOOM_query_prefix(q, start);
1182 s = ZOOM_connection_scan1(c, q);
1183 ZOOM_query_destroy(q);
1188 ZOOM_API(ZOOM_scanset)
1189 ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
1191 ZOOM_scanset scan = 0;
1192 Z_Query *z_query = ZOOM_query_get_Z_Query(q);
1196 scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
1197 scan->connection = c;
1198 scan->odr = odr_createmem(ODR_DECODE);
1199 scan->options = ZOOM_options_create_with_parent(c->options);
1201 scan->scan_response = 0;
1202 scan->srw_scan_response = 0;
1205 ZOOM_query_addref(q);
1206 scan->databaseNames = ZOOM_connection_get_databases(c, c->options,
1207 &scan->num_databaseNames,
1212 ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
1213 task->u.scan.scan = scan;
1218 while (ZOOM_event(1, &c))
1226 ZOOM_scanset_destroy(ZOOM_scanset scan)
1231 if (scan->refcount == 0)
1233 ZOOM_query_destroy(scan->query);
1235 odr_destroy(scan->odr);
1237 ZOOM_options_destroy(scan->options);
1242 static zoom_ret send_package(ZOOM_connection c)
1246 yaz_log(c->log_details, "%p send_package", c);
1248 return zoom_complete;
1249 assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1251 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1252 ZOOM_connection_put_event(c, event);
1254 c->buf_out = c->tasks->u.package->buf_out;
1255 c->len_out = c->tasks->u.package->len_out;
1257 return ZOOM_send_buf(c);
1261 ZOOM_scanset_size(ZOOM_scanset scan)
1266 if (scan->scan_response && scan->scan_response->entries)
1267 return scan->scan_response->entries->num_entries;
1268 else if (scan->srw_scan_response)
1269 return scan->srw_scan_response->num_terms;
1273 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
1275 const char **value_term, size_t *value_len,
1276 const char **disp_term, size_t *disp_len)
1278 size_t noent = ZOOM_scanset_size(scan);
1289 if (scan->scan_response)
1291 Z_ScanResponse *res = scan->scan_response;
1292 if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1294 Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1296 *value_term = (const char *) t->term->u.general->buf;
1297 *value_len = t->term->u.general->len;
1300 *disp_term = t->displayTerm;
1301 *disp_len = strlen(*disp_term);
1303 else if (t->term->which == Z_Term_general)
1305 *disp_term = (const char *) t->term->u.general->buf;
1306 *disp_len = t->term->u.general->len;
1308 *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1311 if (scan->srw_scan_response)
1313 Z_SRW_scanResponse *res = scan->srw_scan_response;
1314 Z_SRW_scanTerm *t = res->terms + pos;
1317 *value_term = t->value;
1318 *value_len = strlen(*value_term);
1321 *disp_term = t->displayTerm;
1323 *disp_term = t->value;
1324 *disp_len = strlen(*disp_term);
1325 *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
1330 ZOOM_API(const char *)
1331 ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
1332 size_t *occ, size_t *len)
1334 const char *value_term = 0;
1335 size_t value_len = 0;
1336 const char *disp_term = 0;
1337 size_t disp_len = 0;
1339 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1340 &disp_term, &disp_len);
1346 ZOOM_API(const char *)
1347 ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
1348 size_t *occ, size_t *len)
1350 const char *value_term = 0;
1351 size_t value_len = 0;
1352 const char *disp_term = 0;
1353 size_t disp_len = 0;
1355 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1356 &disp_term, &disp_len);
1362 ZOOM_API(const char *)
1363 ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
1365 return ZOOM_options_get(scan->options, key);
1369 ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
1372 ZOOM_options_set(scan->options, key, val);
1376 ZOOM_API(ZOOM_package)
1377 ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
1379 ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
1382 p->odr_out = odr_createmem(ODR_ENCODE);
1383 p->options = ZOOM_options_create_with_parent2(options, c->options);
1391 ZOOM_package_destroy(ZOOM_package p)
1396 if (p->refcount == 0)
1398 odr_destroy(p->odr_out);
1401 ZOOM_options_destroy(p->options);
1406 ZOOM_API(const char *)
1407 ZOOM_package_option_get(ZOOM_package p, const char *key)
1409 return ZOOM_options_get(p->options, key);
1412 ZOOM_API(const char *)
1413 ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
1415 return ZOOM_options_getl(p->options, key, lenp);
1419 ZOOM_package_option_set(ZOOM_package p, const char *key,
1422 ZOOM_options_set(p->options, key, val);
1426 ZOOM_package_option_setl(ZOOM_package p, const char *key,
1427 const char *val, int len)
1429 ZOOM_options_setl(p->options, key, val, len);
1433 ZOOM_connection_exec_task(ZOOM_connection c)
1435 ZOOM_task task = c->tasks;
1436 zoom_ret ret = zoom_complete;
1440 yaz_log(c->log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
1441 c, task->which, task->running);
1442 if (c->error != ZOOM_ERROR_NONE)
1444 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1445 "removing tasks because of error = %d", c, c->error);
1446 ZOOM_connection_remove_tasks(c);
1451 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1452 "task already running", c);
1456 ret = zoom_complete;
1457 if (c->cs || task->which == ZOOM_TASK_CONNECT)
1459 switch (task->which)
1461 case ZOOM_TASK_SEARCH:
1462 if (c->proto == PROTO_HTTP)
1463 ret = ZOOM_connection_srw_send_search(c);
1465 ret = ZOOM_connection_Z3950_search(c);
1467 case ZOOM_TASK_CONNECT:
1468 ret = do_connect(c);
1470 case ZOOM_TASK_SCAN:
1471 if (c->proto == PROTO_HTTP)
1472 ret = ZOOM_connection_srw_send_scan(c);
1474 ret = ZOOM_connection_Z3950_send_scan(c);
1476 case ZOOM_TASK_PACKAGE:
1477 ret = send_package(c);
1479 case ZOOM_TASK_SORT:
1480 c->tasks->u.sort.resultset->r_sort_spec =
1481 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1482 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1488 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1489 "remove tasks because no connection exist", c);
1490 ZOOM_connection_remove_tasks(c);
1492 if (ret == zoom_complete)
1494 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1495 "task removed (complete)", c);
1496 ZOOM_connection_remove_task(c);
1499 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1505 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri)
1507 Z_GDU *gdu = z_get_HTTP_Request_uri(c->odr_out, uri, 0, c->proxy ? 1 : 0);
1509 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1510 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1512 yaz_cookies_request(c->cookies, c->odr_out, gdu->u.HTTP_Request);
1513 if (c->user && c->password)
1515 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1516 c->user, c->password);
1520 return ZOOM_send_GDU(c, gdu);
1524 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu)
1528 int r = z_GDU(c->odr_out, &gdu, 0, 0);
1530 return zoom_complete;
1532 z_GDU(c->odr_print, &gdu, 0, 0);
1534 z_GDU(c->odr_save, &gdu, 0, 0);
1535 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1536 odr_reset(c->odr_out);
1538 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1539 ZOOM_connection_put_event(c, event);
1541 return ZOOM_send_buf(c);
1544 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1545 const char *addinfo, const char *addinfo2)
1547 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1551 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1553 zoom_ret cret = zoom_complete;
1556 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1558 const char *location;
1560 ZOOM_connection_set_mask(c, 0);
1561 yaz_log(c->log_details, "%p handle_http", c);
1563 yaz_cookies_response(c->cookies, hres);
1564 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1565 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1568 if (c->no_redirects > 10)
1570 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1571 c->no_redirects = 0;
1572 ZOOM_connection_close(c);
1576 /* since redirect may change host we just reconnect. A smarter
1577 implementation might check whether it's the same server */
1579 int host_change = 0;
1580 location = yaz_check_location(c->odr_in, c->host_port,
1581 location, &host_change);
1583 c->location = xstrdup(location);
1584 do_connect_host(c, location);
1590 ret = ZOOM_handle_sru(c, hres, &cret, &addinfo);
1593 if (c->no_redirects) /* end of redirect. change hosts again */
1594 ZOOM_connection_close(c);
1596 c->no_redirects = 0;
1600 if (hres->code != 200)
1601 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1604 yaz_log(YLOG_LOG, "set error... addinfo=%s", addinfo ?
1606 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1608 ZOOM_connection_close(c);
1610 if (cret == zoom_complete)
1612 yaz_log(c->log_details, "removing tasks in handle_http");
1613 ZOOM_connection_remove_task(c);
1617 if (!strcmp(hres->version, "1.0"))
1619 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1620 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1625 /* HTTP 1.1: only if no close we stay alive.. */
1626 if (connection_head && !strcmp(connection_head, "close"))
1631 ZOOM_connection_close(c);
1634 c->tasks->running = 0;
1635 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1636 c->reconnect_ok = 0;
1640 c->reconnect_ok = 1; /* if the server closes anyway */
1645 static int do_read(ZOOM_connection c)
1650 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1651 ZOOM_connection_put_event(c, event);
1653 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1654 more = cs_more(c->cs);
1655 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1660 if (!ZOOM_test_reconnect(c))
1662 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1663 ZOOM_connection_close(c);
1671 odr_reset(c->odr_in);
1672 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1673 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1674 ZOOM_connection_put_event(c, event);
1676 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1679 int err = odr_geterrorx(c->odr_in, &x);
1681 const char *element = odr_getelement(c->odr_in);
1682 yaz_snprintf(msg, sizeof(msg),
1683 "ODR code %d:%d element=%s offset=%d",
1684 err, x, element ? element : "<unknown>",
1685 odr_offset(c->odr_in));
1686 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1689 FILE *ber_file = yaz_log_file();
1691 odr_dumpBER(ber_file, c->buf_in, r);
1693 ZOOM_connection_close(c);
1698 z_GDU(c->odr_print, &gdu, 0, 0);
1700 z_GDU(c->odr_save, &gdu, 0, 0);
1701 if (gdu->which == Z_GDU_Z3950)
1702 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1703 else if (gdu->which == Z_GDU_HTTP_Response)
1706 handle_http(c, gdu->u.HTTP_Response);
1708 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1709 ZOOM_connection_close(c);
1717 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1722 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1723 ZOOM_connection_put_event(c, event);
1725 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1726 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1728 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1729 if (ZOOM_test_reconnect(c))
1731 return zoom_pending;
1733 if (c->state == STATE_CONNECTING)
1734 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1736 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1737 ZOOM_connection_close(c);
1738 return zoom_complete;
1742 int mask = ZOOM_SELECT_EXCEPT;
1743 if (c->cs->io_pending & CS_WANT_WRITE)
1744 mask += ZOOM_SELECT_WRITE;
1745 if (c->cs->io_pending & CS_WANT_READ)
1746 mask += ZOOM_SELECT_READ;
1747 ZOOM_connection_set_mask(c, mask);
1748 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1753 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1754 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1757 return zoom_pending;
1760 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1762 return do_write_ex(c, c->buf_out, c->len_out);
1766 ZOOM_API(const char *)
1767 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1769 if (!strcmp(key, "APDU"))
1771 return c->saveAPDU_wrbuf ? wrbuf_cstr(c->saveAPDU_wrbuf) : "";
1774 return ZOOM_options_get(c->options, key);
1777 ZOOM_API(const char *)
1778 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1780 if (!strcmp(key, "APDU"))
1782 if (c->saveAPDU_wrbuf)
1784 *lenp = wrbuf_len(c->saveAPDU_wrbuf);
1785 return wrbuf_cstr(c->saveAPDU_wrbuf);
1794 return ZOOM_options_getl(c->options, key, lenp);
1798 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1801 if (!strcmp(key, "saveAPDU"))
1803 if (val && strcmp(val, "0"))
1805 if (!c->saveAPDU_wrbuf)
1806 c->saveAPDU_wrbuf = wrbuf_alloc();
1808 wrbuf_rewind(c->saveAPDU_wrbuf);
1812 wrbuf_destroy(c->saveAPDU_wrbuf);
1813 c->saveAPDU_wrbuf = 0;
1815 ZOOM_connection_save_apdu_wrbuf(c, c->saveAPDU_wrbuf);
1818 ZOOM_options_set(c->options, key, val);
1822 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1823 const char *val, int len)
1825 ZOOM_options_setl(c->options, key, val, len);
1828 ZOOM_API(const char *)
1829 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1831 return ZOOM_options_get(r->options, key);
1835 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1838 ZOOM_options_set(r->options, key, val);
1843 ZOOM_connection_errcode(ZOOM_connection c)
1845 return ZOOM_connection_error(c, 0, 0);
1848 ZOOM_API(const char *)
1849 ZOOM_connection_errmsg(ZOOM_connection c)
1852 ZOOM_connection_error(c, &msg, 0);
1856 ZOOM_API(const char *)
1857 ZOOM_connection_addinfo(ZOOM_connection c)
1859 const char *addinfo;
1860 ZOOM_connection_error(c, 0, &addinfo);
1864 ZOOM_API(const char *)
1865 ZOOM_connection_diagset(ZOOM_connection c)
1867 const char *diagset;
1868 ZOOM_connection_error_x(c, 0, 0, &diagset);
1872 ZOOM_API(const char *)
1873 ZOOM_diag_str(int error)
1877 case ZOOM_ERROR_NONE:
1879 case ZOOM_ERROR_CONNECT:
1880 return "Connect failed";
1881 case ZOOM_ERROR_MEMORY:
1882 return "Out of memory";
1883 case ZOOM_ERROR_ENCODE:
1884 return "Encoding failed";
1885 case ZOOM_ERROR_DECODE:
1886 return "Decoding failed";
1887 case ZOOM_ERROR_CONNECTION_LOST:
1888 return "Connection lost";
1889 case ZOOM_ERROR_INIT:
1890 return "Init rejected";
1891 case ZOOM_ERROR_INTERNAL:
1892 return "Internal failure";
1893 case ZOOM_ERROR_TIMEOUT:
1895 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1896 return "Unsupported protocol";
1897 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1898 return "Unsupported query type";
1899 case ZOOM_ERROR_INVALID_QUERY:
1900 return "Invalid query";
1901 case ZOOM_ERROR_CQL_PARSE:
1902 return "CQL parsing error";
1903 case ZOOM_ERROR_CQL_TRANSFORM:
1904 return "CQL transformation error";
1905 case ZOOM_ERROR_CCL_CONFIG:
1906 return "CCL configuration error";
1907 case ZOOM_ERROR_CCL_PARSE:
1908 return "CCL parsing error";
1909 case ZOOM_ERROR_ES_INVALID_ACTION:
1910 return "Extended Service. invalid action";
1911 case ZOOM_ERROR_ES_INVALID_VERSION:
1912 return "Extended Service. invalid version";
1913 case ZOOM_ERROR_ES_INVALID_SYNTAX:
1914 return "Extended Service. invalid syntax";
1915 case ZOOM_ERROR_MEMCACHED:
1918 return diagbib1_str(error);
1923 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1924 const char **addinfo, const char **diagset)
1926 int error = c->error;
1929 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1930 *cp = ZOOM_diag_str(error);
1931 else if (!strcmp(c->diagset, "HTTP"))
1932 *cp = z_HTTP_errmsg(c->error);
1933 else if (!strcmp(c->diagset, "Bib-1"))
1934 *cp = ZOOM_diag_str(error);
1935 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1936 *cp = yaz_diag_srw_str(c->error);
1938 *cp = "Unknown error and diagnostic set";
1941 *addinfo = c->addinfo ? c->addinfo : "";
1943 *diagset = c->diagset ? c->diagset : "";
1948 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1949 const char **addinfo)
1951 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1954 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1956 ZOOM_Event event = 0;
1957 int r = cs_look(c->cs);
1958 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1963 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1964 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1965 ZOOM_connection_close(c);
1966 ZOOM_connection_put_event(c, event);
1968 else if (r == CS_CONNECT)
1970 int ret = ret = cs_rcvconnect(c->cs);
1971 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
1972 "cs_rcvconnect returned %d", c, ret);
1975 int mask = ZOOM_SELECT_EXCEPT;
1976 if (c->cs->io_pending & CS_WANT_WRITE)
1977 mask += ZOOM_SELECT_WRITE;
1978 if (c->cs->io_pending & CS_WANT_READ)
1979 mask += ZOOM_SELECT_READ;
1980 ZOOM_connection_set_mask(c, mask);
1981 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1982 ZOOM_connection_put_event(c, event);
1986 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1987 ZOOM_connection_put_event(c, event);
1989 if (c->proto == PROTO_Z3950)
1990 ZOOM_connection_Z3950_send_init(c);
1993 /* no init request for SRW .. */
1994 if (c->tasks->which == ZOOM_TASK_CONNECT)
1996 ZOOM_connection_remove_task(c);
1997 ZOOM_connection_set_mask(c, 0);
1999 if (c->cs && c->location)
2000 send_HTTP_redirect(c, c->location);
2002 ZOOM_connection_exec_task(c);
2004 c->state = STATE_ESTABLISHED;
2008 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
2009 ZOOM_connection_close(c);
2014 if (mask & ZOOM_SELECT_EXCEPT)
2016 if (!ZOOM_test_reconnect(c))
2018 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
2019 ZOOM_connection_close(c);
2023 if (mask & ZOOM_SELECT_READ)
2025 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2031 ZOOM_connection_last_event(ZOOM_connection cs)
2034 return ZOOM_EVENT_NONE;
2035 return cs->last_event;
2039 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2043 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2044 /* timeout and this connection was waiting */
2045 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2046 ZOOM_connection_close(c);
2047 ZOOM_connection_put_event(c, event);
2053 ZOOM_connection_process(ZOOM_connection c)
2059 event = ZOOM_connection_get_event(c);
2062 ZOOM_Event_destroy(event);
2065 ZOOM_connection_exec_task(c);
2066 event = ZOOM_connection_get_event(c);
2069 ZOOM_Event_destroy(event);
2076 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2080 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2082 for (i = 0; i<no; i++)
2084 ZOOM_connection c = cs[i];
2086 if (c && ZOOM_connection_process(c))
2092 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2094 if (c->mask && mask)
2095 ZOOM_connection_do_io(c, mask);
2099 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2102 return cs_fileno(c->cs);
2106 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2114 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2121 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2123 return ZOOM_options_get_int(c->options, "timeout", 30);
2126 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2131 ZOOM_connection_set_mask(c, 0);
2132 c->state = STATE_IDLE;
2138 * c-file-style: "Stroustrup"
2139 * indent-tabs-mode: nil
2141 * vim: shiftwidth=4 tabstop=8 expandtab