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);
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);
202 xfree(task->u.search.schema);
204 case ZOOM_TASK_RETRIEVE:
205 resultset_destroy(task->u.retrieve.resultset);
206 xfree(task->u.retrieve.syntax);
207 xfree(task->u.retrieve.elementSetName);
208 xfree(task->u.retrieve.schema);
210 case ZOOM_TASK_CONNECT:
213 ZOOM_scanset_destroy(task->u.scan.scan);
215 case ZOOM_TASK_PACKAGE:
216 ZOOM_package_destroy(task->u.package);
219 resultset_destroy(task->u.sort.resultset);
220 ZOOM_query_destroy(task->u.sort.q);
229 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
230 ZOOM_connection_put_event(c, event);
235 void ZOOM_connection_remove_tasks(ZOOM_connection c)
238 ZOOM_connection_remove_task(c);
241 static void odr_wrbuf_write(ODR o, void *handle, int type,
242 const char *buf, int len)
244 WRBUF w = (WRBUF) handle;
245 wrbuf_write(w, buf, len);
248 ZOOM_API(ZOOM_connection)
249 ZOOM_connection_create(ZOOM_options options)
251 ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
255 c->log_api = log_api0;
256 c->log_details = log_details0;
258 yaz_log(c->log_api, "%p ZOOM_connection_create", c);
260 c->proto = PROTO_Z3950;
262 ZOOM_connection_set_mask(c, 0);
264 c->state = STATE_IDLE;
267 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
274 c->options = ZOOM_options_create_with_parent(options);
280 c->charset = c->lang = 0;
290 c->url_authentication = 0;
292 c->maximum_record_size = 0;
293 c->preferred_message_size = 0;
295 c->odr_in = odr_createmem(ODR_DECODE);
296 c->odr_out = odr_createmem(ODR_ENCODE);
301 c->support_named_resultsets = 0;
302 c->last_event = ZOOM_EVENT_NONE;
304 c->m_queue_front = 0;
310 c->saveAPDU_wrbuf = 0;
314 ZOOM_API(void) ZOOM_connection_save_apdu_wrbuf(ZOOM_connection c, WRBUF w)
318 odr_destroy(c->odr_save);
323 c->odr_save = odr_createmem(ODR_PRINT);
324 odr_set_stream(c->odr_save, w, odr_wrbuf_write, 0);
328 /* set database names. Take local databases (if set); otherwise
329 take databases given in ZURL (if set); otherwise use Default */
330 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
333 char **databaseNames;
334 const char *cp = ZOOM_options_get(options, "databaseName");
336 if ((!cp || !*cp) && con->host_port)
337 cs_get_host_args(con->host_port, &cp);
340 nmem_strsplit(odr_getmem(odr), "+", cp, &databaseNames, num);
341 return databaseNames;
344 ZOOM_API(ZOOM_connection)
345 ZOOM_connection_new(const char *host, int portnum)
347 ZOOM_connection c = ZOOM_connection_create(0);
349 ZOOM_connection_connect(c, host, portnum);
353 static zoom_sru_mode get_sru_mode_from_string(const char *s)
356 return zoom_sru_soap;
357 if (!yaz_matchstr(s, "soap"))
358 return zoom_sru_soap;
359 else if (!yaz_matchstr(s, "get"))
361 else if (!yaz_matchstr(s, "post"))
362 return zoom_sru_post;
363 else if (!yaz_matchstr(s, "solr"))
364 return zoom_sru_solr;
365 return zoom_sru_error;
369 ZOOM_connection_connect(ZOOM_connection c,
370 const char *host, int portnum)
373 const char *http_lead;
377 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
378 c, host ? host : "null", portnum);
380 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
381 ZOOM_connection_remove_tasks(c);
385 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
386 odr_destroy(c->odr_print);
388 if (ZOOM_options_get_bool(c->options, "apdulog", 0))
390 c->odr_print = odr_createmem(ODR_PRINT);
391 odr_setprint(c->odr_print, yaz_log_file());
398 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
402 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
405 val = ZOOM_options_get(c->options, "proxy");
408 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
409 c->proxy = xstrdup(val);
414 val = ZOOM_options_get(c->options, "tproxy");
417 yaz_log(c->log_details, "%p ZOOM_connection_connect tproxy=%s", c, val);
418 c->tproxy = xstrdup(val);
423 val = ZOOM_options_get(c->options, "charset");
426 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
427 c->charset = xstrdup(val);
431 val = ZOOM_options_get(c->options, "lang");
434 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
435 c->lang = xstrdup(val);
440 val = ZOOM_options_get(c->options, "sru");
441 if (val && *val && !strstr(host, "://"))
442 http_lead = "http://";
445 c->sru_mode = get_sru_mode_from_string(val);
453 sprintf(hostn, "%.80s:%d", host, portnum);
456 c->host_port = xmalloc(strlen(host) + strlen(http_lead) + 1);
457 strcpy(c->host_port, http_lead);
458 strcat(c->host_port, host);
463 * If the "<scheme>:" part of the host string is preceded by one
464 * or more comma-separated <name>=<value> pairs, these are taken
465 * to be options to be set on the connection object. Among other
466 * applications, this facility can be used to embed authentication
468 * user=admin,password=secret,tcp:localhost:9999
470 char *remainder = c->host_port;
471 char *pcolon = strchr(remainder, ':');
474 while ((pcomma = strchr(remainder, ',')) != 0 &&
475 (pcolon == 0 || pcomma < pcolon))
478 if ((pequals = strchr(remainder, '=')) != 0)
481 ZOOM_connection_option_set(c, remainder, pequals+1);
483 remainder = pcomma+1;
486 if (remainder != c->host_port)
488 remainder = xstrdup(remainder);
490 c->host_port = remainder;
494 xfree(c->sru_version);
495 val = ZOOM_options_get(c->options, "sru_version");
496 c->sru_version = xstrdup(val ? val : "1.2");
498 ZOOM_options_set(c->options, "host", c->host_port);
500 xfree(c->cookie_out);
502 val = ZOOM_options_get(c->options, "cookie");
505 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
506 c->cookie_out = xstrdup(val);
511 val = ZOOM_options_get(c->options, "clientIP");
514 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
516 c->client_IP = xstrdup(val);
521 val = ZOOM_options_get(c->options, "group");
523 c->group = xstrdup(val);
527 val = ZOOM_options_get(c->options, "user");
529 c->user = xstrdup(val);
533 val = ZOOM_options_get(c->options, "password");
535 val = ZOOM_options_get(c->options, "pass");
537 c->password = xstrdup(val);
539 val = ZOOM_options_get(c->options, "authenticationMode");
540 if (val && !strcmp(val, "url"))
541 c->url_authentication = 1;
543 c->url_authentication = 0;
545 c->maximum_record_size =
546 ZOOM_options_get_int(c->options, "maximumRecordSize", 64*1024*1024);
547 c->preferred_message_size =
548 ZOOM_options_get_int(c->options, "preferredMessageSize", 64*1024*1024);
550 c->async = ZOOM_options_get_bool(c->options, "async", 0);
552 yaz_cookies_destroy(c->cookies);
553 c->cookies = yaz_cookies_create();
555 if (c->sru_mode == zoom_sru_error)
557 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, val);
558 ZOOM_connection_remove_tasks(c);
562 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
563 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
567 while (ZOOM_event(1, &c))
572 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
576 /* remove ourselves from the resultsets in connection */
577 ZOOM_resultset *rp = &r->connection->resultsets;
580 assert(*rp); /* we must be in this list!! */
582 { /* OK, we're here - take us out of it */
593 ZOOM_connection_destroy(ZOOM_connection c)
598 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
602 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 yaz_cookies_destroy(c->cookies);
633 wrbuf_destroy(c->saveAPDU_wrbuf);
637 void ZOOM_resultset_addref(ZOOM_resultset r)
641 yaz_mutex_enter(r->mutex);
643 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
645 yaz_mutex_leave(r->mutex);
649 static int g_resultsets = 0;
650 static YAZ_MUTEX g_resultset_mutex = 0;
652 /* TODO We need to initialize this before running threaded:
653 * call resultset_use(0) */
655 static int resultset_use(int delta) {
657 if (g_resultset_mutex == 0)
658 yaz_mutex_create(&g_resultset_mutex);
659 yaz_mutex_enter(g_resultset_mutex);
660 g_resultsets += delta;
661 resultset_count = g_resultsets;
662 yaz_mutex_leave(g_resultset_mutex);
663 return resultset_count;
666 int resultsets_count(void) {
667 return resultset_use(0);
670 ZOOM_resultset ZOOM_resultset_create(void)
673 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
677 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
680 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, *schema;
728 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
729 r->r_sort_spec = ZOOM_query_get_sortspec(q);
732 r->options = ZOOM_options_create_with_parent(c->options);
734 start = ZOOM_options_get_int(r->options, "start", 0);
735 count = ZOOM_options_get_int(r->options, "count", 0);
737 /* If "presentChunk" is defined use that; otherwise "step" */
738 const char *cp = ZOOM_options_get(r->options, "presentChunk");
739 r->step = ZOOM_options_get_int(r->options,
740 (cp != 0 ? "presentChunk": "step"), 0);
742 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
743 cp = ZOOM_options_get(r->options, "setname");
745 r->setname = xstrdup(cp);
747 r->databaseNames = ZOOM_connection_get_databases(c, c->options, &r->num_databaseNames,
751 r->next = c->resultsets;
753 if (c->host_port && c->proto == PROTO_HTTP)
757 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
758 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
762 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
767 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
768 task->u.search.resultset = r;
769 task->u.search.start = start;
770 task->u.search.count = count;
771 task->u.search.recv_search_fired = 0;
773 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
774 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
775 elementSetName = ZOOM_options_get(r->options, "elementSetName");
776 task->u.search.elementSetName = elementSetName ?
777 xstrdup(elementSetName) : 0;
778 schema = ZOOM_options_get(r->options, "schema");
779 task->u.search.schema = schema ? xstrdup(schema) : 0;
781 ZOOM_resultset_addref(r);
783 ZOOM_query_addref(q);
787 while (ZOOM_event(1, &c))
794 ZOOM_resultset_sort(ZOOM_resultset r,
795 const char *sort_type, const char *sort_spec)
797 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
801 ZOOM_resultset_sort1(ZOOM_resultset r,
802 const char *sort_type, const char *sort_spec)
804 ZOOM_connection c = r->connection;
808 newq = ZOOM_query_create();
809 if (ZOOM_query_sortby(newq, sort_spec) < 0)
812 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
813 r, r, sort_type, sort_spec);
817 if (c->host_port && c->proto == PROTO_HTTP)
821 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
822 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
826 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
832 ZOOM_resultset_cache_reset(r);
833 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
834 task->u.sort.resultset = r;
835 task->u.sort.q = newq;
837 ZOOM_resultset_addref(r);
841 while (ZOOM_event(1, &c))
849 ZOOM_resultset_destroy(ZOOM_resultset r)
851 resultset_destroy(r);
854 static void resultset_destroy(ZOOM_resultset r)
858 yaz_mutex_enter(r->mutex);
860 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
862 if (r->refcount == 0)
864 yaz_mutex_leave(r->mutex);
866 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
867 ZOOM_resultset_cache_reset(r);
868 ZOOM_resultset_release(r);
869 ZOOM_query_destroy(r->query);
870 ZOOM_options_destroy(r->options);
873 yaz_mutex_destroy(&r->mutex);
875 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
881 yaz_mutex_leave(r->mutex);
885 ZOOM_resultset_size(ZOOM_resultset r)
890 int ZOOM_test_reconnect(ZOOM_connection c)
894 if (!c->reconnect_ok)
896 ZOOM_connection_close(c);
898 c->tasks->running = 0;
899 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
901 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
902 ZOOM_connection_put_event(c, event);
907 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
908 int force_sync, int start, int count)
913 const char *syntax, *elementSetName;
917 yaz_log(log_details0, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
918 " count=%d", r, force_sync, start, count);
923 if (c->host_port && c->proto == PROTO_HTTP)
927 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: no comstack", r);
928 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
932 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: prepare "
937 task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
938 task->u.retrieve.resultset = r;
939 task->u.retrieve.start = start;
940 task->u.retrieve.count = count;
942 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
943 task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
944 elementSetName = ZOOM_options_get(r->options, "elementSetName");
945 task->u.retrieve.elementSetName = elementSetName
946 ? xstrdup(elementSetName) : 0;
948 cp = ZOOM_options_get(r->options, "schema");
949 task->u.retrieve.schema = cp ? xstrdup(cp) : 0;
951 ZOOM_resultset_addref(r);
953 if (!r->connection->async || force_sync)
954 while (r->connection && ZOOM_event(1, &r->connection))
959 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
960 size_t start, size_t count)
962 int force_present = 0;
966 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
967 r, r, (long) start, (long) count);
970 ZOOM_resultset_retrieve(r, force_present, start, count);
974 for (i = 0; i< count; i++)
975 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
980 ZOOM_resultset_facets_size(ZOOM_resultset r) {
981 return r->num_facets;
984 ZOOM_API(ZOOM_facet_field)
985 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name) {
986 int num = r->num_facets;
987 ZOOM_facet_field *facets = r->facets;
989 for (index = 0; index < num; index++) {
990 if (!strcmp(facets[index]->facet_name, name)) {
991 return facets[index];
997 ZOOM_API(ZOOM_facet_field)
998 ZOOM_resultset_get_facet_field_by_index(ZOOM_resultset r, int index) {
999 int num = r->num_facets;
1000 ZOOM_facet_field *facets = r->facets;
1001 if (index >= 0 && index < num) {
1002 return facets[index];
1007 ZOOM_API(ZOOM_facet_field *)
1008 ZOOM_resultset_facets(ZOOM_resultset r)
1013 ZOOM_API(const char**)
1014 ZOOM_resultset_facets_names(ZOOM_resultset r)
1016 return (const char **) r->facets_names;
1019 ZOOM_API(const char*)
1020 ZOOM_facet_field_name(ZOOM_facet_field field)
1022 return field->facet_name;
1026 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1028 return field->num_terms;
1031 ZOOM_API(const char*)
1032 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1033 *freq = field->facet_terms[idx].frequency;
1034 return field->facet_terms[idx].term;
1038 static void get_cert(ZOOM_connection c)
1043 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1045 ZOOM_connection_option_setl(c, "sslPeerCert",
1046 cert_buf, cert_len);
1051 static zoom_ret do_connect_host(ZOOM_connection c,
1052 const char *logical_url);
1054 static zoom_ret do_connect(ZOOM_connection c)
1056 return do_connect_host(c, c->host_port);
1059 static zoom_ret do_connect_host(ZOOM_connection c, const char *logical_url)
1065 c->cs = cs_create_host_proxy(logical_url, 0, &add,
1066 c->tproxy ? c->tproxy : c->proxy);
1068 if (c->cs && c->cs->protocol == PROTO_HTTP)
1071 c->proto = PROTO_HTTP;
1073 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1074 ZOOM_connection_close(c);
1075 return zoom_complete;
1080 int ret = cs_connect(c->cs, add);
1083 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1084 ZOOM_connection_put_event(c, event);
1086 if (c->proto == PROTO_Z3950)
1087 ZOOM_connection_Z3950_send_init(c);
1090 /* no init request for SRW .. */
1091 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1092 ZOOM_connection_remove_task(c);
1093 ZOOM_connection_set_mask(c, 0);
1094 ZOOM_connection_exec_task(c);
1096 c->state = STATE_ESTABLISHED;
1097 return zoom_pending;
1101 int mask = ZOOM_SELECT_EXCEPT;
1102 if (c->cs->io_pending & CS_WANT_WRITE)
1103 mask += ZOOM_SELECT_WRITE;
1104 if (c->cs->io_pending & CS_WANT_READ)
1105 mask += ZOOM_SELECT_READ;
1106 ZOOM_connection_set_mask(c, mask);
1107 c->state = STATE_CONNECTING;
1108 return zoom_pending;
1111 c->state = STATE_IDLE;
1112 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1113 return zoom_complete;
1116 /* returns 1 if PDU was sent OK (still pending )
1117 0 if PDU was not sent OK (nothing to wait for)
1120 ZOOM_API(ZOOM_record)
1121 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1123 const char *syntax =
1124 ZOOM_options_get(s->options, "preferredRecordSyntax");
1125 const char *elementSetName =
1126 ZOOM_options_get(s->options, "elementSetName");
1127 const char *schema =
1128 ZOOM_options_get(s->options, "schema");
1130 return ZOOM_record_cache_lookup(s, pos, syntax, elementSetName, schema);
1133 ZOOM_API(ZOOM_record)
1134 ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1136 ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1141 * MIKE: I think force_sync should always be zero, but I don't
1142 * want to make this change until I get the go-ahead from
1143 * Adam, in case something depends on the old synchronous
1147 if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1148 ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1149 rec = ZOOM_resultset_record_immediate(r, pos);
1154 ZOOM_API(ZOOM_scanset)
1155 ZOOM_connection_scan(ZOOM_connection c, const char *start)
1158 ZOOM_query q = ZOOM_query_create();
1160 ZOOM_query_prefix(q, start);
1162 s = ZOOM_connection_scan1(c, q);
1163 ZOOM_query_destroy(q);
1168 ZOOM_API(ZOOM_scanset)
1169 ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
1171 ZOOM_scanset scan = 0;
1172 Z_Query *z_query = ZOOM_query_get_Z_Query(q);
1176 scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
1177 scan->connection = c;
1178 scan->odr = odr_createmem(ODR_DECODE);
1179 scan->options = ZOOM_options_create_with_parent(c->options);
1181 scan->scan_response = 0;
1182 scan->srw_scan_response = 0;
1185 ZOOM_query_addref(q);
1186 scan->databaseNames = ZOOM_connection_get_databases(c, c->options,
1187 &scan->num_databaseNames,
1192 ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
1193 task->u.scan.scan = scan;
1198 while (ZOOM_event(1, &c))
1206 ZOOM_scanset_destroy(ZOOM_scanset scan)
1211 if (scan->refcount == 0)
1213 ZOOM_query_destroy(scan->query);
1215 odr_destroy(scan->odr);
1217 ZOOM_options_destroy(scan->options);
1222 static zoom_ret send_package(ZOOM_connection c)
1226 yaz_log(c->log_details, "%p send_package", c);
1228 return zoom_complete;
1229 assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1231 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1232 ZOOM_connection_put_event(c, event);
1234 c->buf_out = c->tasks->u.package->buf_out;
1235 c->len_out = c->tasks->u.package->len_out;
1237 return ZOOM_send_buf(c);
1241 ZOOM_scanset_size(ZOOM_scanset scan)
1246 if (scan->scan_response && scan->scan_response->entries)
1247 return scan->scan_response->entries->num_entries;
1248 else if (scan->srw_scan_response)
1249 return scan->srw_scan_response->num_terms;
1253 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
1255 const char **value_term, size_t *value_len,
1256 const char **disp_term, size_t *disp_len)
1258 size_t noent = ZOOM_scanset_size(scan);
1269 if (scan->scan_response)
1271 Z_ScanResponse *res = scan->scan_response;
1272 if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1274 Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1276 *value_term = (const char *) t->term->u.general->buf;
1277 *value_len = t->term->u.general->len;
1280 *disp_term = t->displayTerm;
1281 *disp_len = strlen(*disp_term);
1283 else if (t->term->which == Z_Term_general)
1285 *disp_term = (const char *) t->term->u.general->buf;
1286 *disp_len = t->term->u.general->len;
1288 *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1291 if (scan->srw_scan_response)
1293 Z_SRW_scanResponse *res = scan->srw_scan_response;
1294 Z_SRW_scanTerm *t = res->terms + pos;
1297 *value_term = t->value;
1298 *value_len = strlen(*value_term);
1301 *disp_term = t->displayTerm;
1303 *disp_term = t->value;
1304 *disp_len = strlen(*disp_term);
1305 *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
1310 ZOOM_API(const char *)
1311 ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
1312 size_t *occ, size_t *len)
1314 const char *value_term = 0;
1315 size_t value_len = 0;
1316 const char *disp_term = 0;
1317 size_t disp_len = 0;
1319 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1320 &disp_term, &disp_len);
1326 ZOOM_API(const char *)
1327 ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
1328 size_t *occ, size_t *len)
1330 const char *value_term = 0;
1331 size_t value_len = 0;
1332 const char *disp_term = 0;
1333 size_t disp_len = 0;
1335 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1336 &disp_term, &disp_len);
1342 ZOOM_API(const char *)
1343 ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
1345 return ZOOM_options_get(scan->options, key);
1349 ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
1352 ZOOM_options_set(scan->options, key, val);
1356 ZOOM_API(ZOOM_package)
1357 ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
1359 ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
1362 p->odr_out = odr_createmem(ODR_ENCODE);
1363 p->options = ZOOM_options_create_with_parent2(options, c->options);
1371 ZOOM_package_destroy(ZOOM_package p)
1376 if (p->refcount == 0)
1378 odr_destroy(p->odr_out);
1381 ZOOM_options_destroy(p->options);
1386 ZOOM_API(const char *)
1387 ZOOM_package_option_get(ZOOM_package p, const char *key)
1389 return ZOOM_options_get(p->options, key);
1392 ZOOM_API(const char *)
1393 ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
1395 return ZOOM_options_getl(p->options, key, lenp);
1399 ZOOM_package_option_set(ZOOM_package p, const char *key,
1402 ZOOM_options_set(p->options, key, val);
1406 ZOOM_package_option_setl(ZOOM_package p, const char *key,
1407 const char *val, int len)
1409 ZOOM_options_setl(p->options, key, val, len);
1413 ZOOM_connection_exec_task(ZOOM_connection c)
1415 ZOOM_task task = c->tasks;
1416 zoom_ret ret = zoom_complete;
1420 yaz_log(c->log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
1421 c, task->which, task->running);
1422 if (c->error != ZOOM_ERROR_NONE)
1424 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1425 "removing tasks because of error = %d", c, c->error);
1426 ZOOM_connection_remove_tasks(c);
1431 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1432 "task already running", c);
1436 ret = zoom_complete;
1437 if (c->cs || task->which == ZOOM_TASK_CONNECT)
1439 switch (task->which)
1441 case ZOOM_TASK_SEARCH:
1442 if (c->proto == PROTO_HTTP)
1443 ret = ZOOM_connection_srw_send_search(c);
1445 ret = ZOOM_connection_Z3950_send_search(c);
1447 case ZOOM_TASK_RETRIEVE:
1448 if (c->proto == PROTO_HTTP)
1449 ret = ZOOM_connection_srw_send_search(c);
1451 ret = send_Z3950_present(c);
1453 case ZOOM_TASK_CONNECT:
1454 ret = do_connect(c);
1456 case ZOOM_TASK_SCAN:
1457 if (c->proto == PROTO_HTTP)
1458 ret = ZOOM_connection_srw_send_scan(c);
1460 ret = ZOOM_connection_Z3950_send_scan(c);
1462 case ZOOM_TASK_PACKAGE:
1463 ret = send_package(c);
1465 case ZOOM_TASK_SORT:
1466 c->tasks->u.sort.resultset->r_sort_spec =
1467 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1468 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1474 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1475 "remove tasks because no connection exist", c);
1476 ZOOM_connection_remove_tasks(c);
1478 if (ret == zoom_complete)
1480 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1481 "task removed (complete)", c);
1482 ZOOM_connection_remove_task(c);
1485 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1492 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri)
1494 Z_GDU *gdu = z_get_HTTP_Request_uri(c->odr_out, uri, 0, c->proxy ? 1 : 0);
1496 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1497 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1499 yaz_cookies_request(c->cookies, c->odr_out, gdu->u.HTTP_Request);
1500 if (c->user && c->password)
1502 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1503 c->user, c->password);
1505 return ZOOM_send_GDU(c, gdu);
1508 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu)
1512 int r = z_GDU(c->odr_out, &gdu, 0, 0);
1514 return zoom_complete;
1516 z_GDU(c->odr_print, &gdu, 0, 0);
1518 z_GDU(c->odr_save, &gdu, 0, 0);
1519 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1520 odr_reset(c->odr_out);
1522 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1523 ZOOM_connection_put_event(c, event);
1525 return ZOOM_send_buf(c);
1529 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1530 const char *addinfo, const char *addinfo2)
1532 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1537 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1539 zoom_ret cret = zoom_complete;
1542 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1544 const char *location;
1546 ZOOM_connection_set_mask(c, 0);
1547 yaz_log(c->log_details, "%p handle_http", c);
1549 yaz_cookies_response(c->cookies, hres);
1550 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1551 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1554 if (c->no_redirects > 10)
1556 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1557 c->no_redirects = 0;
1558 ZOOM_connection_close(c);
1562 /* since redirect may change host we just reconnect. A smarter
1563 implementation might check whether it's the same server */
1565 int host_change = 0;
1566 location = yaz_check_location(c->odr_in, c->host_port,
1567 location, &host_change);
1568 if (do_connect_host(c, location) == zoom_complete)
1569 return; /* connect failed.. */
1570 send_HTTP_redirect(c, location);
1576 ret = ZOOM_handle_sru(c, hres, &cret, &addinfo);
1579 if (c->no_redirects) /* end of redirect. change hosts again */
1580 ZOOM_connection_close(c);
1582 c->no_redirects = 0;
1586 if (hres->code != 200)
1587 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1590 yaz_log(YLOG_LOG, "set error... addinfo=%s", addinfo ?
1592 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1594 ZOOM_connection_close(c);
1596 if (cret == zoom_complete)
1598 yaz_log(c->log_details, "removing tasks in handle_http");
1599 ZOOM_connection_remove_task(c);
1603 if (!strcmp(hres->version, "1.0"))
1605 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1606 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1611 /* HTTP 1.1: only if no close we stay alive.. */
1612 if (connection_head && !strcmp(connection_head, "close"))
1617 ZOOM_connection_close(c);
1620 c->tasks->running = 0;
1621 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1622 c->reconnect_ok = 0;
1626 c->reconnect_ok = 1; /* if the server closes anyway */
1631 static int do_read(ZOOM_connection c)
1636 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1637 ZOOM_connection_put_event(c, event);
1639 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1640 more = cs_more(c->cs);
1641 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1646 if (!ZOOM_test_reconnect(c))
1648 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1649 ZOOM_connection_close(c);
1657 odr_reset(c->odr_in);
1658 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1659 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1660 ZOOM_connection_put_event(c, event);
1662 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1665 int err = odr_geterrorx(c->odr_in, &x);
1667 const char *element = odr_getelement(c->odr_in);
1668 yaz_snprintf(msg, sizeof(msg),
1669 "ODR code %d:%d element=%s offset=%d",
1670 err, x, element ? element : "<unknown>",
1671 odr_offset(c->odr_in));
1672 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1675 FILE *ber_file = yaz_log_file();
1677 odr_dumpBER(ber_file, c->buf_in, r);
1679 ZOOM_connection_close(c);
1684 z_GDU(c->odr_print, &gdu, 0, 0);
1686 z_GDU(c->odr_save, &gdu, 0, 0);
1687 if (gdu->which == Z_GDU_Z3950)
1688 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1689 else if (gdu->which == Z_GDU_HTTP_Response)
1692 handle_http(c, gdu->u.HTTP_Response);
1694 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1695 ZOOM_connection_close(c);
1703 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1708 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1709 ZOOM_connection_put_event(c, event);
1711 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1712 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1714 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1715 if (ZOOM_test_reconnect(c))
1717 return zoom_pending;
1719 if (c->state == STATE_CONNECTING)
1720 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1722 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1723 ZOOM_connection_close(c);
1724 return zoom_complete;
1728 int mask = ZOOM_SELECT_EXCEPT;
1729 if (c->cs->io_pending & CS_WANT_WRITE)
1730 mask += ZOOM_SELECT_WRITE;
1731 if (c->cs->io_pending & CS_WANT_READ)
1732 mask += ZOOM_SELECT_READ;
1733 ZOOM_connection_set_mask(c, mask);
1734 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1739 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1740 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1743 return zoom_pending;
1746 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1748 return do_write_ex(c, c->buf_out, c->len_out);
1752 ZOOM_API(const char *)
1753 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1755 if (!strcmp(key, "APDU"))
1757 return c->saveAPDU_wrbuf ? wrbuf_cstr(c->saveAPDU_wrbuf) : "";
1760 return ZOOM_options_get(c->options, key);
1763 ZOOM_API(const char *)
1764 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1766 if (!strcmp(key, "APDU"))
1768 if (c->saveAPDU_wrbuf)
1770 *lenp = wrbuf_len(c->saveAPDU_wrbuf);
1771 return wrbuf_cstr(c->saveAPDU_wrbuf);
1780 return ZOOM_options_getl(c->options, key, lenp);
1784 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1787 if (!strcmp(key, "saveAPDU"))
1789 if (val && strcmp(val, "0"))
1791 if (!c->saveAPDU_wrbuf)
1792 c->saveAPDU_wrbuf = wrbuf_alloc();
1794 wrbuf_rewind(c->saveAPDU_wrbuf);
1798 wrbuf_destroy(c->saveAPDU_wrbuf);
1799 c->saveAPDU_wrbuf = 0;
1801 ZOOM_connection_save_apdu_wrbuf(c, c->saveAPDU_wrbuf);
1804 ZOOM_options_set(c->options, key, val);
1808 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1809 const char *val, int len)
1811 ZOOM_options_setl(c->options, key, val, len);
1814 ZOOM_API(const char *)
1815 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1817 return ZOOM_options_get(r->options, key);
1821 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1824 ZOOM_options_set(r->options, key, val);
1829 ZOOM_connection_errcode(ZOOM_connection c)
1831 return ZOOM_connection_error(c, 0, 0);
1834 ZOOM_API(const char *)
1835 ZOOM_connection_errmsg(ZOOM_connection c)
1838 ZOOM_connection_error(c, &msg, 0);
1842 ZOOM_API(const char *)
1843 ZOOM_connection_addinfo(ZOOM_connection c)
1845 const char *addinfo;
1846 ZOOM_connection_error(c, 0, &addinfo);
1850 ZOOM_API(const char *)
1851 ZOOM_connection_diagset(ZOOM_connection c)
1853 const char *diagset;
1854 ZOOM_connection_error_x(c, 0, 0, &diagset);
1858 ZOOM_API(const char *)
1859 ZOOM_diag_str(int error)
1863 case ZOOM_ERROR_NONE:
1865 case ZOOM_ERROR_CONNECT:
1866 return "Connect failed";
1867 case ZOOM_ERROR_MEMORY:
1868 return "Out of memory";
1869 case ZOOM_ERROR_ENCODE:
1870 return "Encoding failed";
1871 case ZOOM_ERROR_DECODE:
1872 return "Decoding failed";
1873 case ZOOM_ERROR_CONNECTION_LOST:
1874 return "Connection lost";
1875 case ZOOM_ERROR_INIT:
1876 return "Init rejected";
1877 case ZOOM_ERROR_INTERNAL:
1878 return "Internal failure";
1879 case ZOOM_ERROR_TIMEOUT:
1881 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1882 return "Unsupported protocol";
1883 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1884 return "Unsupported query type";
1885 case ZOOM_ERROR_INVALID_QUERY:
1886 return "Invalid query";
1887 case ZOOM_ERROR_CQL_PARSE:
1888 return "CQL parsing error";
1889 case ZOOM_ERROR_CQL_TRANSFORM:
1890 return "CQL transformation error";
1891 case ZOOM_ERROR_CCL_CONFIG:
1892 return "CCL configuration error";
1893 case ZOOM_ERROR_CCL_PARSE:
1894 return "CCL parsing error";
1895 case ZOOM_ERROR_ES_INVALID_ACTION:
1896 return "Extended Service. invalid action";
1897 case ZOOM_ERROR_ES_INVALID_VERSION:
1898 return "Extended Service. invalid version";
1899 case ZOOM_ERROR_ES_INVALID_SYNTAX:
1900 return "Extended Service. invalid syntax";
1902 return diagbib1_str(error);
1907 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1908 const char **addinfo, const char **diagset)
1910 int error = c->error;
1913 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1914 *cp = ZOOM_diag_str(error);
1915 else if (!strcmp(c->diagset, "HTTP"))
1916 *cp = z_HTTP_errmsg(c->error);
1917 else if (!strcmp(c->diagset, "Bib-1"))
1918 *cp = ZOOM_diag_str(error);
1919 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1920 *cp = yaz_diag_srw_str(c->error);
1922 *cp = "Unknown error and diagnostic set";
1925 *addinfo = c->addinfo ? c->addinfo : "";
1927 *diagset = c->diagset ? c->diagset : "";
1932 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1933 const char **addinfo)
1935 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1938 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1940 ZOOM_Event event = 0;
1941 int r = cs_look(c->cs);
1942 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1947 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1948 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1949 ZOOM_connection_close(c);
1950 ZOOM_connection_put_event(c, event);
1952 else if (r == CS_CONNECT)
1954 int ret = ret = cs_rcvconnect(c->cs);
1955 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
1956 "cs_rcvconnect returned %d", c, ret);
1959 int mask = ZOOM_SELECT_EXCEPT;
1960 if (c->cs->io_pending & CS_WANT_WRITE)
1961 mask += ZOOM_SELECT_WRITE;
1962 if (c->cs->io_pending & CS_WANT_READ)
1963 mask += ZOOM_SELECT_READ;
1964 ZOOM_connection_set_mask(c, mask);
1965 event = ZOOM_Event_create(ZOOM_EVENT_NONE);
1966 ZOOM_connection_put_event(c, event);
1970 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1971 ZOOM_connection_put_event(c, event);
1973 if (c->proto == PROTO_Z3950)
1974 ZOOM_connection_Z3950_send_init(c);
1977 /* no init request for SRW .. */
1978 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1979 ZOOM_connection_remove_task(c);
1980 ZOOM_connection_set_mask(c, 0);
1981 ZOOM_connection_exec_task(c);
1983 c->state = STATE_ESTABLISHED;
1987 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1988 ZOOM_connection_close(c);
1993 if (mask & ZOOM_SELECT_EXCEPT)
1995 if (!ZOOM_test_reconnect(c))
1997 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1998 ZOOM_connection_close(c);
2002 if (mask & ZOOM_SELECT_READ)
2004 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2010 ZOOM_connection_last_event(ZOOM_connection cs)
2013 return ZOOM_EVENT_NONE;
2014 return cs->last_event;
2018 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2022 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2023 /* timeout and this connection was waiting */
2024 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2025 ZOOM_connection_close(c);
2026 ZOOM_connection_put_event(c, event);
2032 ZOOM_connection_process(ZOOM_connection c)
2038 event = ZOOM_connection_get_event(c);
2041 ZOOM_Event_destroy(event);
2044 ZOOM_connection_exec_task(c);
2045 event = ZOOM_connection_get_event(c);
2048 ZOOM_Event_destroy(event);
2055 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2059 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2061 for (i = 0; i<no; i++)
2063 ZOOM_connection c = cs[i];
2065 if (c && ZOOM_connection_process(c))
2071 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2073 if (c->mask && mask)
2074 ZOOM_connection_do_io(c, mask);
2078 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2081 return cs_fileno(c->cs);
2085 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2093 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2100 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2102 return ZOOM_options_get_int(c->options, "timeout", 30);
2105 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2110 ZOOM_connection_set_mask(c, 0);
2111 c->state = STATE_IDLE;
2117 * c-file-style: "Stroustrup"
2118 * indent-tabs-mode: nil
2120 * vim: shiftwidth=4 tabstop=8 expandtab