1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2013 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);
54 void ZOOM_set_dset_error(ZOOM_connection c, int error,
56 const char *addinfo, const char *addinfo2)
63 if (!c->diagset || strcmp(dset, c->diagset))
66 c->diagset = xstrdup(dset);
67 /* remove integer part from SRW diagset .. */
68 if ((cp = strrchr(c->diagset, '/')))
71 if (addinfo && addinfo2)
73 c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 3);
74 strcpy(c->addinfo, addinfo);
75 strcat(c->addinfo, ": ");
76 strcat(c->addinfo, addinfo2);
79 c->addinfo = xstrdup(addinfo);
80 if (error != ZOOM_ERROR_NONE)
82 yaz_log(c->log_api, "%p set_dset_error %s %s:%d %s %s",
83 c, c->host_port ? c->host_port : "<>", dset, error,
84 addinfo ? addinfo : "",
85 addinfo2 ? addinfo2 : "");
86 ZOOM_connection_remove_tasks(c);
90 int ZOOM_uri_to_code(const char *uri)
94 if ((cp = strrchr(uri, '/')))
101 void ZOOM_set_error(ZOOM_connection c, int error, const char *addinfo)
103 ZOOM_set_dset_error(c, error, "ZOOM", addinfo, 0);
106 static void clear_error(ZOOM_connection c)
109 * If an error is tied to an operation then it's ok to clear: for
110 * example, a diagnostic returned from a search is cleared by a
111 * subsequent search. However, problems such as Connection Lost
112 * or Init Refused are not cleared, because they are not
113 * recoverable: doing another search doesn't help.
116 ZOOM_connection_remove_events(c);
119 case ZOOM_ERROR_CONNECT:
120 case ZOOM_ERROR_MEMORY:
121 case ZOOM_ERROR_DECODE:
122 case ZOOM_ERROR_CONNECTION_LOST:
123 case ZOOM_ERROR_INIT:
124 case ZOOM_ERROR_INTERNAL:
125 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
128 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
132 void ZOOM_connection_show_task(ZOOM_task task)
136 case ZOOM_TASK_SEARCH:
137 yaz_log(YLOG_LOG, "search p=%p", task);
139 case ZOOM_TASK_RETRIEVE:
140 yaz_log(YLOG_LOG, "retrieve p=%p", task);
142 case ZOOM_TASK_CONNECT:
143 yaz_log(YLOG_LOG, "connect p=%p", task);
146 yaz_log(YLOG_LOG, "scan p=%p", task);
151 void ZOOM_connection_show_tasks(ZOOM_connection c)
154 yaz_log(YLOG_LOG, "connection p=%p tasks", c);
155 for (task = c->tasks; task; task = task->next)
156 ZOOM_connection_show_task(task);
159 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
161 ZOOM_task *taskp = &c->tasks;
163 taskp = &(*taskp)->next;
164 *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
165 (*taskp)->running = 0;
166 (*taskp)->which = which;
172 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
174 return c->tasks ? 0 : 1;
177 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
179 ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
181 task->next = c->tasks;
189 void ZOOM_connection_remove_task(ZOOM_connection c)
191 ZOOM_task task = c->tasks;
195 c->tasks = task->next;
198 case ZOOM_TASK_SEARCH:
199 resultset_destroy(task->u.search.resultset);
200 xfree(task->u.search.syntax);
201 xfree(task->u.search.elementSetName);
203 case ZOOM_TASK_RETRIEVE:
204 resultset_destroy(task->u.retrieve.resultset);
205 xfree(task->u.retrieve.syntax);
206 xfree(task->u.retrieve.elementSetName);
208 case ZOOM_TASK_CONNECT:
211 ZOOM_scanset_destroy(task->u.scan.scan);
213 case ZOOM_TASK_PACKAGE:
214 ZOOM_package_destroy(task->u.package);
217 resultset_destroy(task->u.sort.resultset);
218 ZOOM_query_destroy(task->u.sort.q);
227 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
228 ZOOM_connection_put_event(c, event);
233 void ZOOM_connection_remove_tasks(ZOOM_connection c)
236 ZOOM_connection_remove_task(c);
239 static void odr_wrbuf_write(ODR o, void *handle, int type,
240 const char *buf, int len)
242 WRBUF w = (WRBUF) handle;
243 wrbuf_write(w, buf, len);
246 ZOOM_API(ZOOM_connection)
247 ZOOM_connection_create(ZOOM_options options)
249 ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
253 c->log_api = log_api0;
254 c->log_details = log_details0;
256 yaz_log(c->log_api, "%p ZOOM_connection_create", c);
258 c->proto = PROTO_Z3950;
260 ZOOM_connection_set_mask(c, 0);
262 c->state = STATE_IDLE;
265 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
272 c->options = ZOOM_options_create_with_parent(options);
278 c->charset = c->lang = 0;
289 c->maximum_record_size = 0;
290 c->preferred_message_size = 0;
292 c->odr_in = odr_createmem(ODR_DECODE);
293 c->odr_out = odr_createmem(ODR_ENCODE);
298 c->support_named_resultsets = 0;
299 c->last_event = ZOOM_EVENT_NONE;
301 c->m_queue_front = 0;
306 c->saveAPDU_wrbuf = 0;
310 ZOOM_API(void) ZOOM_connection_save_apdu_wrbuf(ZOOM_connection c, WRBUF w)
314 odr_destroy(c->odr_save);
319 c->odr_save = odr_createmem(ODR_PRINT);
320 odr_set_stream(c->odr_save, w, odr_wrbuf_write, 0);
324 /* set database names. Take local databases (if set); otherwise
325 take databases given in ZURL (if set); otherwise use Default */
326 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
329 char **databaseNames;
330 const char *cp = ZOOM_options_get(options, "databaseName");
332 if ((!cp || !*cp) && con->host_port)
333 cs_get_host_args(con->host_port, &cp);
336 nmem_strsplit(odr_getmem(odr), "+", cp, &databaseNames, num);
337 return databaseNames;
340 ZOOM_API(ZOOM_connection)
341 ZOOM_connection_new(const char *host, int portnum)
343 ZOOM_connection c = ZOOM_connection_create(0);
345 ZOOM_connection_connect(c, host, portnum);
349 static zoom_sru_mode get_sru_mode_from_string(const char *s)
352 return zoom_sru_soap;
353 if (!yaz_matchstr(s, "soap"))
354 return zoom_sru_soap;
355 else if (!yaz_matchstr(s, "get"))
357 else if (!yaz_matchstr(s, "post"))
358 return zoom_sru_post;
359 else if (!yaz_matchstr(s, "solr"))
360 return zoom_sru_solr;
361 return zoom_sru_error;
365 ZOOM_connection_connect(ZOOM_connection c,
366 const char *host, int portnum)
372 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
373 c, host ? host : "null", portnum);
375 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
376 ZOOM_connection_remove_tasks(c);
380 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
381 odr_destroy(c->odr_print);
383 if (ZOOM_options_get_bool(c->options, "apdulog", 0))
385 c->odr_print = odr_createmem(ODR_PRINT);
386 odr_setprint(c->odr_print, yaz_log_file());
393 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
397 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
400 val = ZOOM_options_get(c->options, "proxy");
403 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
404 c->proxy = xstrdup(val);
409 val = ZOOM_options_get(c->options, "tproxy");
412 yaz_log(c->log_details, "%p ZOOM_connection_connect tproxy=%s", c, val);
413 c->tproxy = xstrdup(val);
418 val = ZOOM_options_get(c->options, "charset");
421 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
422 c->charset = xstrdup(val);
426 val = ZOOM_options_get(c->options, "lang");
429 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
430 c->lang = xstrdup(val);
441 sprintf(hostn, "%.80s:%d", host, portnum);
442 c->host_port = xstrdup(hostn);
445 c->host_port = xstrdup(host);
450 * If the "<scheme>:" part of the host string is preceded by one
451 * or more comma-separated <name>=<value> pairs, these are taken
452 * to be options to be set on the connection object. Among other
453 * applications, this facility can be used to embed authentication
455 * user=admin,password=secret,tcp:localhost:9999
457 char *remainder = c->host_port;
458 char *pcolon = strchr(remainder, ':');
461 while ((pcomma = strchr(remainder, ',')) != 0 &&
462 (pcolon == 0 || pcomma < pcolon))
465 if ((pequals = strchr(remainder, '=')) != 0)
468 ZOOM_connection_option_set(c, remainder, pequals+1);
470 remainder = pcomma+1;
473 if (remainder != c->host_port)
475 remainder = xstrdup(remainder);
477 c->host_port = remainder;
481 val = ZOOM_options_get(c->options, "sru");
482 c->sru_mode = get_sru_mode_from_string(val);
484 xfree(c->sru_version);
485 val = ZOOM_options_get(c->options, "sru_version");
486 c->sru_version = xstrdup(val ? val : "1.2");
488 ZOOM_options_set(c->options, "host", c->host_port);
490 xfree(c->cookie_out);
492 val = ZOOM_options_get(c->options, "cookie");
495 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
496 c->cookie_out = xstrdup(val);
501 val = ZOOM_options_get(c->options, "clientIP");
504 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
506 c->client_IP = xstrdup(val);
511 val = ZOOM_options_get(c->options, "group");
513 c->group = xstrdup(val);
517 val = ZOOM_options_get(c->options, "user");
519 c->user = xstrdup(val);
523 val = ZOOM_options_get(c->options, "password");
525 val = ZOOM_options_get(c->options, "pass");
528 c->password = xstrdup(val);
530 c->maximum_record_size =
531 ZOOM_options_get_int(c->options, "maximumRecordSize", 64*1024*1024);
532 c->preferred_message_size =
533 ZOOM_options_get_int(c->options, "preferredMessageSize", 64*1024*1024);
535 c->async = ZOOM_options_get_bool(c->options, "async", 0);
537 if (c->sru_mode == zoom_sru_error)
539 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, val);
540 ZOOM_connection_remove_tasks(c);
544 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
545 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
549 while (ZOOM_event(1, &c))
554 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
556 #if ZOOM_RESULT_LISTS
560 /* remove ourselves from the resultsets in connection */
561 ZOOM_resultset *rp = &r->connection->resultsets;
564 assert(*rp); /* we must be in this list!! */
566 { /* OK, we're here - take us out of it */
578 ZOOM_connection_destroy(ZOOM_connection c)
580 #if ZOOM_RESULT_LISTS
581 ZOOM_resultsets list;
587 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
591 #if ZOOM_RESULT_LISTS
592 /* Remove the connection's usage of resultsets */
593 list = c->resultsets;
595 ZOOM_resultsets removed = list;
596 ZOOM_resultset_destroy(list->resultset);
601 for (r = c->resultsets; r; r = r->next)
608 odr_destroy(c->odr_in);
609 odr_destroy(c->odr_out);
611 odr_destroy(c->odr_save);
614 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
615 odr_destroy(c->odr_print);
617 ZOOM_options_destroy(c->options);
618 ZOOM_connection_remove_tasks(c);
619 ZOOM_connection_remove_events(c);
625 xfree(c->cookie_out);
631 xfree(c->sru_version);
632 wrbuf_destroy(c->saveAPDU_wrbuf);
636 void ZOOM_resultset_addref(ZOOM_resultset r)
640 yaz_mutex_enter(r->mutex);
642 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
644 yaz_mutex_leave(r->mutex);
648 static int g_resultsets = 0;
649 static YAZ_MUTEX g_resultset_mutex = 0;
651 /* TODO We need to initialize this before running threaded:
652 * call resultset_use(0) */
654 static int resultset_use(int delta) {
656 if (g_resultset_mutex == 0)
657 yaz_mutex_create(&g_resultset_mutex);
658 yaz_mutex_enter(g_resultset_mutex);
659 g_resultsets += delta;
660 resultset_count = g_resultsets;
661 yaz_mutex_leave(g_resultset_mutex);
662 return resultset_count;
665 int resultsets_count(void) {
666 return resultset_use(0);
669 ZOOM_resultset ZOOM_resultset_create(void)
672 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
676 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
679 r->odr = odr_createmem(ODR_ENCODE);
684 for (i = 0; i<RECORD_HASH_SIZE; i++)
685 r->record_hash[i] = 0;
689 r->databaseNames = 0;
690 r->num_databaseNames = 0;
695 yaz_mutex_create(&r->mutex);
698 WRBUF w = wrbuf_alloc();
699 YAZ_SHPTR_INIT(r->record_wrbuf, w);
706 ZOOM_API(ZOOM_resultset)
707 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
710 ZOOM_query s = ZOOM_query_create();
712 ZOOM_query_prefix(s, q);
714 r = ZOOM_connection_search(c, s);
715 ZOOM_query_destroy(s);
719 ZOOM_API(ZOOM_resultset)
720 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
722 ZOOM_resultset r = ZOOM_resultset_create();
726 const char *syntax, *elementSetName;
727 #if ZOOM_RESULT_LISTS
731 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
732 r->r_sort_spec = ZOOM_query_get_sortspec(q);
735 r->options = ZOOM_options_create_with_parent(c->options);
737 start = ZOOM_options_get_int(r->options, "start", 0);
738 count = ZOOM_options_get_int(r->options, "count", 0);
740 /* If "presentChunk" is defined use that; otherwise "step" */
741 const char *cp = ZOOM_options_get(r->options, "presentChunk");
742 r->step = ZOOM_options_get_int(r->options,
743 (cp != 0 ? "presentChunk": "step"), 0);
745 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
746 cp = ZOOM_options_get(r->options, "setname");
748 r->setname = xstrdup(cp);
749 cp = ZOOM_options_get(r->options, "schema");
751 r->schema = xstrdup(cp);
753 r->databaseNames = ZOOM_connection_get_databases(c, c->options, &r->num_databaseNames,
758 #if ZOOM_RESULT_LISTS
759 yaz_log(log_details, "%p ZOOM_connection_search: Adding new resultset (%p) to resultsets (%p) ", c, r, c->resultsets);
760 set = xmalloc(sizeof(*set));
761 ZOOM_resultset_addref(r);
763 set->next = c->resultsets;
766 r->next = c->resultsets;
769 if (c->host_port && c->proto == PROTO_HTTP)
773 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
774 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
778 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
783 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
784 task->u.search.resultset = r;
785 task->u.search.start = start;
786 task->u.search.count = count;
787 task->u.search.recv_search_fired = 0;
789 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
790 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
791 elementSetName = ZOOM_options_get(r->options, "elementSetName");
792 task->u.search.elementSetName = elementSetName
793 ? xstrdup(elementSetName) : 0;
795 ZOOM_resultset_addref(r);
797 ZOOM_query_addref(q);
801 while (ZOOM_event(1, &c))
808 ZOOM_resultset_sort(ZOOM_resultset r,
809 const char *sort_type, const char *sort_spec)
811 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
815 ZOOM_resultset_sort1(ZOOM_resultset r,
816 const char *sort_type, const char *sort_spec)
818 ZOOM_connection c = r->connection;
822 newq = ZOOM_query_create();
823 if (ZOOM_query_sortby(newq, sort_spec) < 0)
826 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
827 r, r, sort_type, sort_spec);
831 if (c->host_port && c->proto == PROTO_HTTP)
835 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
836 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
840 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
846 ZOOM_resultset_cache_reset(r);
847 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
848 task->u.sort.resultset = r;
849 task->u.sort.q = newq;
851 ZOOM_resultset_addref(r);
855 while (ZOOM_event(1, &c))
863 ZOOM_resultset_destroy(ZOOM_resultset r)
865 resultset_destroy(r);
868 static void resultset_destroy(ZOOM_resultset r)
872 yaz_mutex_enter(r->mutex);
874 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
876 if (r->refcount == 0)
878 yaz_mutex_leave(r->mutex);
880 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
881 ZOOM_resultset_cache_reset(r);
882 ZOOM_resultset_release(r);
883 ZOOM_query_destroy(r->query);
884 ZOOM_options_destroy(r->options);
888 yaz_mutex_destroy(&r->mutex);
890 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
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_RETRIEVE);
953 task->u.retrieve.resultset = r;
954 task->u.retrieve.start = start;
955 task->u.retrieve.count = count;
957 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
958 task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
959 elementSetName = ZOOM_options_get(r->options, "elementSetName");
960 task->u.retrieve.elementSetName = elementSetName
961 ? xstrdup(elementSetName) : 0;
963 cp = ZOOM_options_get(r->options, "schema");
966 if (!r->schema || strcmp(r->schema, cp))
969 r->schema = xstrdup(cp);
973 ZOOM_resultset_addref(r);
975 if (!r->connection->async || force_sync)
976 while (r->connection && ZOOM_event(1, &r->connection))
981 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
982 size_t start, size_t count)
984 int force_present = 0;
988 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
989 r, r, (long) start, (long) count);
992 ZOOM_resultset_retrieve(r, force_present, start, count);
996 for (i = 0; i< count; i++)
997 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1002 ZOOM_resultset_facets_size(ZOOM_resultset r) {
1003 return r->num_facets;
1006 ZOOM_API(ZOOM_facet_field)
1007 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name) {
1008 int num = r->num_facets;
1009 ZOOM_facet_field *facets = r->facets;
1011 for (index = 0; index < num; index++) {
1012 if (!strcmp(facets[index]->facet_name, name)) {
1013 return facets[index];
1019 ZOOM_API(ZOOM_facet_field)
1020 ZOOM_resultset_get_facet_field_by_index(ZOOM_resultset r, int index) {
1021 int num = r->num_facets;
1022 ZOOM_facet_field *facets = r->facets;
1023 if (index >= 0 && index < num) {
1024 return facets[index];
1029 ZOOM_API(ZOOM_facet_field *)
1030 ZOOM_resultset_facets(ZOOM_resultset r)
1035 ZOOM_API(const char**)
1036 ZOOM_resultset_facets_names(ZOOM_resultset r)
1038 return (const char **) r->facets_names;
1041 ZOOM_API(const char*)
1042 ZOOM_facet_field_name(ZOOM_facet_field field)
1044 return field->facet_name;
1048 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1050 return field->num_terms;
1053 ZOOM_API(const char*)
1054 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1055 *freq = field->facet_terms[idx].frequency;
1056 return field->facet_terms[idx].term;
1060 static void get_cert(ZOOM_connection c)
1065 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1067 ZOOM_connection_option_setl(c, "sslPeerCert",
1068 cert_buf, cert_len);
1073 static zoom_ret do_connect_host(ZOOM_connection c,
1074 const char *logical_url);
1076 static zoom_ret do_connect(ZOOM_connection c)
1078 return do_connect_host(c, c->host_port);
1081 static zoom_ret do_connect_host(ZOOM_connection c, const char *logical_url)
1087 c->cs = cs_create_host_proxy(logical_url, 0, &add,
1088 c->tproxy ? c->tproxy : c->proxy);
1090 if (c->cs && c->cs->protocol == PROTO_HTTP)
1093 c->proto = PROTO_HTTP;
1095 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1096 ZOOM_connection_close(c);
1097 return zoom_complete;
1102 int ret = cs_connect(c->cs, add);
1105 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1106 ZOOM_connection_put_event(c, event);
1108 if (c->proto == PROTO_Z3950)
1109 ZOOM_connection_Z3950_send_init(c);
1112 /* no init request for SRW .. */
1113 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1114 ZOOM_connection_remove_task(c);
1115 ZOOM_connection_set_mask(c, 0);
1116 ZOOM_connection_exec_task(c);
1118 c->state = STATE_ESTABLISHED;
1119 return zoom_pending;
1123 int mask = ZOOM_SELECT_EXCEPT;
1124 if (c->cs->io_pending & CS_WANT_WRITE)
1125 mask += ZOOM_SELECT_WRITE;
1126 if (c->cs->io_pending & CS_WANT_READ)
1127 mask += ZOOM_SELECT_READ;
1128 ZOOM_connection_set_mask(c, mask);
1129 c->state = STATE_CONNECTING;
1130 return zoom_pending;
1133 c->state = STATE_IDLE;
1134 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1135 return zoom_complete;
1138 /* returns 1 if PDU was sent OK (still pending )
1139 0 if PDU was not sent OK (nothing to wait for)
1142 ZOOM_API(ZOOM_record)
1143 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1145 const char *syntax =
1146 ZOOM_options_get(s->options, "preferredRecordSyntax");
1147 const char *elementSetName =
1148 ZOOM_options_get(s->options, "elementSetName");
1150 return ZOOM_record_cache_lookup(s, pos, syntax, elementSetName);
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_send_search(c);
1467 case ZOOM_TASK_RETRIEVE:
1468 if (c->proto == PROTO_HTTP)
1469 ret = ZOOM_connection_srw_send_search(c);
1471 ret = send_Z3950_present(c);
1473 case ZOOM_TASK_CONNECT:
1474 ret = do_connect(c);
1476 case ZOOM_TASK_SCAN:
1477 if (c->proto == PROTO_HTTP)
1478 ret = ZOOM_connection_srw_send_scan(c);
1480 ret = ZOOM_connection_Z3950_send_scan(c);
1482 case ZOOM_TASK_PACKAGE:
1483 ret = send_package(c);
1485 case ZOOM_TASK_SORT:
1486 c->tasks->u.sort.resultset->r_sort_spec =
1487 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1488 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1494 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1495 "remove tasks because no connection exist", c);
1496 ZOOM_connection_remove_tasks(c);
1498 if (ret == zoom_complete)
1500 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1501 "task removed (complete)", c);
1502 ZOOM_connection_remove_task(c);
1505 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1512 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri,
1513 Z_HTTP_Response *cookie_hres)
1515 struct Z_HTTP_Header *h;
1516 char *combined_cookies = 0;
1517 int combined_cookies_len = 0;
1518 Z_GDU *gdu = z_get_HTTP_Request_uri(c->odr_out, uri, 0, c->proxy ? 1 : 0);
1520 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1521 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1524 for (h = cookie_hres->headers; h; h = h->next)
1526 if (!strcmp(h->name, "Set-Cookie"))
1530 if (!(cp = strchr(h->value, ';')))
1531 cp = h->value + strlen(h->value);
1532 if (cp - h->value >= 1) {
1533 combined_cookies = xrealloc(combined_cookies, combined_cookies_len + cp - h->value + 3);
1534 memcpy(combined_cookies+combined_cookies_len, h->value, cp - h->value);
1535 combined_cookies[combined_cookies_len + cp - h->value] = '\0';
1536 strcat(combined_cookies,"; ");
1537 combined_cookies_len = strlen(combined_cookies);
1542 if (combined_cookies_len)
1544 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers,
1545 "Cookie", combined_cookies);
1546 xfree(combined_cookies);
1549 if (c->user && c->password)
1551 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1552 c->user, c->password);
1554 return ZOOM_send_GDU(c, gdu);
1557 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu)
1561 int r = z_GDU(c->odr_out, &gdu, 0, 0);
1563 return zoom_complete;
1565 z_GDU(c->odr_print, &gdu, 0, 0);
1567 z_GDU(c->odr_save, &gdu, 0, 0);
1568 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1569 odr_reset(c->odr_out);
1571 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1572 ZOOM_connection_put_event(c, event);
1574 return ZOOM_send_buf(c);
1578 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1579 const char *addinfo, const char *addinfo2)
1581 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1586 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1588 zoom_ret cret = zoom_complete;
1591 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1593 const char *location;
1595 ZOOM_connection_set_mask(c, 0);
1596 yaz_log(c->log_details, "%p handle_http", c);
1598 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1599 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1602 if (c->no_redirects > 10)
1604 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1605 c->no_redirects = 0;
1606 ZOOM_connection_close(c);
1610 /* since redirect may change host we just reconnect. A smarter
1611 implementation might check whether it's the same server */
1612 do_connect_host(c, location);
1613 send_HTTP_redirect(c, location, hres);
1614 /* we're OK for now. Operation is not really complete */
1620 ret = ZOOM_handle_sru(c, hres, &cret, &addinfo);
1623 if (c->no_redirects) /* end of redirect. change hosts again */
1624 ZOOM_connection_close(c);
1626 c->no_redirects = 0;
1630 if (hres->code != 200)
1631 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1634 yaz_log(YLOG_LOG, "set error... addinfo=%s", addinfo ?
1636 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1638 ZOOM_connection_close(c);
1640 if (cret == zoom_complete)
1642 yaz_log(c->log_details, "removing tasks in handle_http");
1643 ZOOM_connection_remove_task(c);
1647 if (!strcmp(hres->version, "1.0"))
1649 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1650 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1655 /* HTTP 1.1: only if no close we stay alive.. */
1656 if (connection_head && !strcmp(connection_head, "close"))
1661 ZOOM_connection_close(c);
1664 c->tasks->running = 0;
1665 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1666 c->reconnect_ok = 0;
1670 c->reconnect_ok = 1; /* if the server closes anyway */
1675 static int do_read(ZOOM_connection c)
1680 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1681 ZOOM_connection_put_event(c, event);
1683 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1684 more = cs_more(c->cs);
1685 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1690 if (!ZOOM_test_reconnect(c))
1692 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1693 ZOOM_connection_close(c);
1701 odr_reset(c->odr_in);
1702 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1703 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1704 ZOOM_connection_put_event(c, event);
1706 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1709 int err = odr_geterrorx(c->odr_in, &x);
1711 const char *element = odr_getelement(c->odr_in);
1712 yaz_snprintf(msg, sizeof(msg),
1713 "ODR code %d:%d element=%s offset=%d",
1714 err, x, element ? element : "<unknown>",
1715 odr_offset(c->odr_in));
1716 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1719 FILE *ber_file = yaz_log_file();
1721 odr_dumpBER(ber_file, c->buf_in, r);
1723 ZOOM_connection_close(c);
1728 z_GDU(c->odr_print, &gdu, 0, 0);
1730 z_GDU(c->odr_save, &gdu, 0, 0);
1731 if (gdu->which == Z_GDU_Z3950)
1732 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1733 else if (gdu->which == Z_GDU_HTTP_Response)
1736 handle_http(c, gdu->u.HTTP_Response);
1738 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1739 ZOOM_connection_close(c);
1747 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1752 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1753 ZOOM_connection_put_event(c, event);
1755 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1756 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1758 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1759 if (ZOOM_test_reconnect(c))
1761 return zoom_pending;
1763 if (c->state == STATE_CONNECTING)
1764 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1766 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1767 ZOOM_connection_close(c);
1768 return zoom_complete;
1772 int mask = ZOOM_SELECT_EXCEPT;
1773 if (c->cs->io_pending & CS_WANT_WRITE)
1774 mask += ZOOM_SELECT_WRITE;
1775 if (c->cs->io_pending & CS_WANT_READ)
1776 mask += ZOOM_SELECT_READ;
1777 ZOOM_connection_set_mask(c, mask);
1778 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1783 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1784 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1787 return zoom_pending;
1790 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1792 return do_write_ex(c, c->buf_out, c->len_out);
1796 ZOOM_API(const char *)
1797 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1799 if (!strcmp(key, "APDU"))
1801 return c->saveAPDU_wrbuf ? wrbuf_cstr(c->saveAPDU_wrbuf) : "";
1804 return ZOOM_options_get(c->options, key);
1807 ZOOM_API(const char *)
1808 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1810 if (!strcmp(key, "APDU"))
1812 if (c->saveAPDU_wrbuf)
1814 *lenp = wrbuf_len(c->saveAPDU_wrbuf);
1815 return wrbuf_cstr(c->saveAPDU_wrbuf);
1824 return ZOOM_options_getl(c->options, key, lenp);
1828 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1831 if (!strcmp(key, "saveAPDU"))
1833 if (val && strcmp(val, "0"))
1835 if (!c->saveAPDU_wrbuf)
1836 c->saveAPDU_wrbuf = wrbuf_alloc();
1838 wrbuf_rewind(c->saveAPDU_wrbuf);
1842 wrbuf_destroy(c->saveAPDU_wrbuf);
1843 c->saveAPDU_wrbuf = 0;
1845 ZOOM_connection_save_apdu_wrbuf(c, c->saveAPDU_wrbuf);
1848 ZOOM_options_set(c->options, key, val);
1852 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1853 const char *val, int len)
1855 ZOOM_options_setl(c->options, key, val, len);
1858 ZOOM_API(const char *)
1859 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1861 return ZOOM_options_get(r->options, key);
1865 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1868 ZOOM_options_set(r->options, key, val);
1873 ZOOM_connection_errcode(ZOOM_connection c)
1875 return ZOOM_connection_error(c, 0, 0);
1878 ZOOM_API(const char *)
1879 ZOOM_connection_errmsg(ZOOM_connection c)
1882 ZOOM_connection_error(c, &msg, 0);
1886 ZOOM_API(const char *)
1887 ZOOM_connection_addinfo(ZOOM_connection c)
1889 const char *addinfo;
1890 ZOOM_connection_error(c, 0, &addinfo);
1894 ZOOM_API(const char *)
1895 ZOOM_connection_diagset(ZOOM_connection c)
1897 const char *diagset;
1898 ZOOM_connection_error_x(c, 0, 0, &diagset);
1902 ZOOM_API(const char *)
1903 ZOOM_diag_str(int error)
1907 case ZOOM_ERROR_NONE:
1909 case ZOOM_ERROR_CONNECT:
1910 return "Connect failed";
1911 case ZOOM_ERROR_MEMORY:
1912 return "Out of memory";
1913 case ZOOM_ERROR_ENCODE:
1914 return "Encoding failed";
1915 case ZOOM_ERROR_DECODE:
1916 return "Decoding failed";
1917 case ZOOM_ERROR_CONNECTION_LOST:
1918 return "Connection lost";
1919 case ZOOM_ERROR_INIT:
1920 return "Init rejected";
1921 case ZOOM_ERROR_INTERNAL:
1922 return "Internal failure";
1923 case ZOOM_ERROR_TIMEOUT:
1925 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1926 return "Unsupported protocol";
1927 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1928 return "Unsupported query type";
1929 case ZOOM_ERROR_INVALID_QUERY:
1930 return "Invalid query";
1931 case ZOOM_ERROR_CQL_PARSE:
1932 return "CQL parsing error";
1933 case ZOOM_ERROR_CQL_TRANSFORM:
1934 return "CQL transformation error";
1935 case ZOOM_ERROR_CCL_CONFIG:
1936 return "CCL configuration error";
1937 case ZOOM_ERROR_CCL_PARSE:
1938 return "CCL parsing error";
1939 case ZOOM_ERROR_ES_INVALID_ACTION:
1940 return "Extended Service. invalid action";
1941 case ZOOM_ERROR_ES_INVALID_VERSION:
1942 return "Extended Service. invalid version";
1943 case ZOOM_ERROR_ES_INVALID_SYNTAX:
1944 return "Extended Service. invalid syntax";
1946 return diagbib1_str(error);
1951 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1952 const char **addinfo, const char **diagset)
1954 int error = c->error;
1957 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1958 *cp = ZOOM_diag_str(error);
1959 else if (!strcmp(c->diagset, "HTTP"))
1960 *cp = z_HTTP_errmsg(c->error);
1961 else if (!strcmp(c->diagset, "Bib-1"))
1962 *cp = ZOOM_diag_str(error);
1963 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1964 *cp = yaz_diag_srw_str(c->error);
1966 *cp = "Unknown error and diagnostic set";
1969 *addinfo = c->addinfo ? c->addinfo : "";
1971 *diagset = c->diagset ? c->diagset : "";
1976 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1977 const char **addinfo)
1979 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1982 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1984 ZOOM_Event event = 0;
1985 int r = cs_look(c->cs);
1986 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1991 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1992 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1993 ZOOM_connection_close(c);
1994 ZOOM_connection_put_event(c, event);
1996 else if (r == CS_CONNECT)
1998 int ret = ret = cs_rcvconnect(c->cs);
1999 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
2000 "cs_rcvconnect returned %d", c, ret);
2003 int mask = ZOOM_SELECT_EXCEPT;
2004 if (c->cs->io_pending & CS_WANT_WRITE)
2005 mask += ZOOM_SELECT_WRITE;
2006 if (c->cs->io_pending & CS_WANT_READ)
2007 mask += ZOOM_SELECT_READ;
2008 ZOOM_connection_set_mask(c, mask);
2009 event = ZOOM_Event_create(ZOOM_EVENT_NONE);
2010 ZOOM_connection_put_event(c, event);
2014 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
2015 ZOOM_connection_put_event(c, event);
2017 if (c->proto == PROTO_Z3950)
2018 ZOOM_connection_Z3950_send_init(c);
2021 /* no init request for SRW .. */
2022 assert(c->tasks->which == ZOOM_TASK_CONNECT);
2023 ZOOM_connection_remove_task(c);
2024 ZOOM_connection_set_mask(c, 0);
2025 ZOOM_connection_exec_task(c);
2027 c->state = STATE_ESTABLISHED;
2031 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
2032 ZOOM_connection_close(c);
2037 if (mask & ZOOM_SELECT_EXCEPT)
2039 if (!ZOOM_test_reconnect(c))
2041 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
2042 ZOOM_connection_close(c);
2046 if (mask & ZOOM_SELECT_READ)
2048 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2054 ZOOM_connection_last_event(ZOOM_connection cs)
2057 return ZOOM_EVENT_NONE;
2058 return cs->last_event;
2062 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2066 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2067 /* timeout and this connection was waiting */
2068 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2069 ZOOM_connection_close(c);
2070 ZOOM_connection_put_event(c, event);
2076 ZOOM_connection_process(ZOOM_connection c)
2082 event = ZOOM_connection_get_event(c);
2085 ZOOM_Event_destroy(event);
2088 ZOOM_connection_exec_task(c);
2089 event = ZOOM_connection_get_event(c);
2092 ZOOM_Event_destroy(event);
2099 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2103 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2105 for (i = 0; i<no; i++)
2107 ZOOM_connection c = cs[i];
2109 if (c && ZOOM_connection_process(c))
2115 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2117 if (c->mask && mask)
2118 ZOOM_connection_do_io(c, mask);
2122 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2125 return cs_fileno(c->cs);
2129 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2137 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2144 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2146 return ZOOM_options_get_int(c->options, "timeout", 30);
2149 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2154 ZOOM_connection_set_mask(c, 0);
2155 c->state = STATE_IDLE;
2161 * c-file-style: "Stroustrup"
2162 * indent-tabs-mode: nil
2164 * vim: shiftwidth=4 tabstop=8 expandtab