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, '/')))
99 void ZOOM_set_error(ZOOM_connection c, int error, const char *addinfo)
101 ZOOM_set_dset_error(c, error, "ZOOM", addinfo, 0);
104 static void clear_error(ZOOM_connection c)
107 * If an error is tied to an operation then it's ok to clear: for
108 * example, a diagnostic returned from a search is cleared by a
109 * subsequent search. However, problems such as Connection Lost
110 * or Init Refused are not cleared, because they are not
111 * recoverable: doing another search doesn't help.
114 ZOOM_connection_remove_events(c);
117 case ZOOM_ERROR_CONNECT:
118 case ZOOM_ERROR_MEMORY:
119 case ZOOM_ERROR_DECODE:
120 case ZOOM_ERROR_CONNECTION_LOST:
121 case ZOOM_ERROR_INIT:
122 case ZOOM_ERROR_INTERNAL:
123 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
126 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
130 void ZOOM_connection_show_task(ZOOM_task task)
134 case ZOOM_TASK_SEARCH:
135 yaz_log(YLOG_LOG, "search p=%p", task);
137 case ZOOM_TASK_CONNECT:
138 yaz_log(YLOG_LOG, "connect p=%p", task);
141 yaz_log(YLOG_LOG, "scan p=%p", task);
146 void ZOOM_connection_show_tasks(ZOOM_connection c)
149 yaz_log(YLOG_LOG, "connection p=%p tasks", c);
150 for (task = c->tasks; task; task = task->next)
151 ZOOM_connection_show_task(task);
154 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
156 ZOOM_task *taskp = &c->tasks;
158 taskp = &(*taskp)->next;
159 *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
160 (*taskp)->running = 0;
161 (*taskp)->which = which;
167 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
169 return c->tasks ? 0 : 1;
172 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
174 ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
176 task->next = c->tasks;
184 void ZOOM_connection_remove_task(ZOOM_connection c)
186 ZOOM_task task = c->tasks;
190 c->tasks = task->next;
193 case ZOOM_TASK_SEARCH:
194 resultset_destroy(task->u.search.resultset);
195 xfree(task->u.search.syntax);
196 xfree(task->u.search.elementSetName);
197 xfree(task->u.search.schema);
199 case ZOOM_TASK_CONNECT:
202 ZOOM_scanset_destroy(task->u.scan.scan);
204 case ZOOM_TASK_PACKAGE:
205 ZOOM_package_destroy(task->u.package);
208 resultset_destroy(task->u.sort.resultset);
209 ZOOM_query_destroy(task->u.sort.q);
218 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
219 ZOOM_connection_put_event(c, event);
224 void ZOOM_connection_remove_tasks(ZOOM_connection c)
227 ZOOM_connection_remove_task(c);
230 static void odr_wrbuf_write(ODR o, void *handle, int type,
231 const char *buf, int len)
233 WRBUF w = (WRBUF) handle;
234 wrbuf_write(w, buf, len);
237 ZOOM_API(ZOOM_connection)
238 ZOOM_connection_create(ZOOM_options options)
240 ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
244 c->log_api = log_api0;
245 c->log_details = log_details0;
247 yaz_log(c->log_api, "%p ZOOM_connection_create", c);
249 c->proto = PROTO_Z3950;
251 ZOOM_connection_set_mask(c, 0);
253 c->state = STATE_IDLE;
256 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
263 c->options = ZOOM_options_create_with_parent(options);
269 c->charset = c->lang = 0;
279 c->url_authentication = 0;
281 c->maximum_record_size = 0;
282 c->preferred_message_size = 0;
284 c->odr_in = odr_createmem(ODR_DECODE);
285 c->odr_out = odr_createmem(ODR_ENCODE);
290 c->support_named_resultsets = 0;
291 c->last_event = ZOOM_EVENT_NONE;
293 c->m_queue_front = 0;
299 c->saveAPDU_wrbuf = 0;
301 ZOOM_memcached_init(c);
305 ZOOM_API(void) ZOOM_connection_save_apdu_wrbuf(ZOOM_connection c, WRBUF w)
309 odr_destroy(c->odr_save);
314 c->odr_save = odr_createmem(ODR_PRINT);
315 odr_set_stream(c->odr_save, w, odr_wrbuf_write, 0);
319 /* set database names. Take local databases (if set); otherwise
320 take databases given in ZURL (if set); otherwise use Default */
321 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
324 char **databaseNames;
325 const char *cp = ZOOM_options_get(options, "databaseName");
327 if ((!cp || !*cp) && con->host_port)
328 cs_get_host_args(con->host_port, &cp);
331 nmem_strsplit(odr_getmem(odr), "+", cp, &databaseNames, num);
332 return databaseNames;
335 ZOOM_API(ZOOM_connection)
336 ZOOM_connection_new(const char *host, int portnum)
338 ZOOM_connection c = ZOOM_connection_create(0);
340 ZOOM_connection_connect(c, host, portnum);
344 static zoom_sru_mode get_sru_mode_from_string(const char *s)
347 return zoom_sru_soap;
348 if (!yaz_matchstr(s, "soap"))
349 return zoom_sru_soap;
350 else if (!yaz_matchstr(s, "get"))
352 else if (!yaz_matchstr(s, "post"))
353 return zoom_sru_post;
354 else if (!yaz_matchstr(s, "solr"))
355 return zoom_sru_solr;
356 return zoom_sru_error;
360 ZOOM_connection_connect(ZOOM_connection c,
361 const char *host, int portnum)
367 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
368 c, host ? host : "null", portnum);
370 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
371 ZOOM_connection_remove_tasks(c);
375 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
379 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
382 val = ZOOM_options_get(c->options, "proxy");
385 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
386 c->proxy = xstrdup(val);
391 val = ZOOM_options_get(c->options, "tproxy");
394 yaz_log(c->log_details, "%p ZOOM_connection_connect tproxy=%s", c, val);
395 c->tproxy = xstrdup(val);
400 val = ZOOM_options_get(c->options, "charset");
403 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
404 c->charset = xstrdup(val);
408 val = ZOOM_options_get(c->options, "lang");
411 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
412 c->lang = xstrdup(val);
420 const char *http_lead;
422 val = ZOOM_options_get(c->options, "sru");
423 if (val && *val && !strstr(host, "://"))
424 http_lead = "http://";
427 c->sru_mode = get_sru_mode_from_string(val);
432 sprintf(hostn, "%.80s:%d", host, portnum);
435 c->host_port = xmalloc(strlen(host) + strlen(http_lead) + 1);
436 strcpy(c->host_port, http_lead);
437 strcat(c->host_port, host);
442 * If the "<scheme>:" part of the host string is preceded by one
443 * or more comma-separated <name>=<value> pairs, these are taken
444 * to be options to be set on the connection object. Among other
445 * applications, this facility can be used to embed authentication
447 * user=admin,password=secret,tcp:localhost:9999
449 char *remainder = c->host_port;
450 char *pcolon = strchr(remainder, ':');
453 while ((pcomma = strchr(remainder, ',')) != 0 &&
454 (pcolon == 0 || pcomma < pcolon))
457 if ((pequals = strchr(remainder, '=')) != 0)
460 ZOOM_connection_option_set(c, remainder, pequals+1);
462 remainder = pcomma+1;
465 if (remainder != c->host_port)
467 remainder = xstrdup(remainder);
469 c->host_port = remainder;
473 xfree(c->sru_version);
474 val = ZOOM_options_get(c->options, "sru_version");
475 c->sru_version = xstrdup(val ? val : "1.2");
477 ZOOM_options_set(c->options, "host", c->host_port);
479 xfree(c->cookie_out);
481 val = ZOOM_options_get(c->options, "cookie");
484 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
485 c->cookie_out = xstrdup(val);
490 val = ZOOM_options_get(c->options, "clientIP");
493 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
495 c->client_IP = xstrdup(val);
500 val = ZOOM_options_get(c->options, "group");
502 c->group = xstrdup(val);
506 val = ZOOM_options_get(c->options, "user");
508 c->user = xstrdup(val);
512 val = ZOOM_options_get(c->options, "password");
514 val = ZOOM_options_get(c->options, "pass");
516 c->password = xstrdup(val);
518 val = ZOOM_options_get(c->options, "authenticationMode");
519 if (val && !strcmp(val, "url"))
520 c->url_authentication = 1;
522 c->url_authentication = 0;
524 c->maximum_record_size =
525 ZOOM_options_get_int(c->options, "maximumRecordSize", 64*1024*1024);
526 c->preferred_message_size =
527 ZOOM_options_get_int(c->options, "preferredMessageSize", 64*1024*1024);
529 c->async = ZOOM_options_get_bool(c->options, "async", 0);
531 yaz_cookies_destroy(c->cookies);
532 c->cookies = yaz_cookies_create();
534 if (ZOOM_memcached_configure(c))
536 ZOOM_connection_remove_tasks(c);
539 if (c->sru_mode == zoom_sru_error)
541 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, val);
542 ZOOM_connection_remove_tasks(c);
547 odr_destroy(c->odr_print);
549 val = ZOOM_options_get(c->options, "apdufile");
552 c->odr_print = odr_createmem(ODR_PRINT);
553 if (strcmp(val, "-"))
555 FILE *f = fopen(val, "a");
558 WRBUF w = wrbuf_alloc();
559 wrbuf_printf(w, "fopen: %s", val);
560 ZOOM_set_error(c, ZOOM_ERROR_INTERNAL, wrbuf_cstr(w));
564 odr_setprint(c->odr_print, f);
567 else if (ZOOM_options_get_bool(c->options, "apdulog", 0))
569 c->odr_print = odr_createmem(ODR_PRINT);
570 odr_setprint_noclose(c->odr_print, yaz_log_file());
573 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
574 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
578 while (ZOOM_event(1, &c))
583 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
587 /* remove ourselves from the resultsets in connection */
588 ZOOM_resultset *rp = &r->connection->resultsets;
591 assert(*rp); /* we must be in this list!! */
593 { /* OK, we're here - take us out of it */
604 ZOOM_connection_destroy(ZOOM_connection c)
609 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
611 ZOOM_memcached_destroy(c);
615 for (r = c->resultsets; r; r = r->next)
621 odr_destroy(c->odr_in);
622 odr_destroy(c->odr_out);
624 odr_destroy(c->odr_save);
626 odr_destroy(c->odr_print);
627 ZOOM_options_destroy(c->options);
628 ZOOM_connection_remove_tasks(c);
629 ZOOM_connection_remove_events(c);
635 xfree(c->cookie_out);
641 xfree(c->sru_version);
642 yaz_cookies_destroy(c->cookies);
643 wrbuf_destroy(c->saveAPDU_wrbuf);
647 void ZOOM_resultset_addref(ZOOM_resultset r)
651 yaz_mutex_enter(r->mutex);
653 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
655 yaz_mutex_leave(r->mutex);
659 static int g_resultsets = 0;
660 static YAZ_MUTEX g_resultset_mutex = 0;
662 /* TODO We need to initialize this before running threaded:
663 * call resultset_use(0) */
665 static int resultset_use(int delta) {
667 if (g_resultset_mutex == 0)
668 yaz_mutex_create(&g_resultset_mutex);
669 yaz_mutex_enter(g_resultset_mutex);
670 g_resultsets += delta;
671 resultset_count = g_resultsets;
672 yaz_mutex_leave(g_resultset_mutex);
673 return resultset_count;
676 int resultsets_count(void) {
677 return resultset_use(0);
680 ZOOM_resultset ZOOM_resultset_create(void)
683 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
687 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
690 r->odr = odr_createmem(ODR_DECODE);
694 for (i = 0; i<RECORD_HASH_SIZE; i++)
695 r->record_hash[i] = 0;
699 r->databaseNames = 0;
700 r->num_databaseNames = 0;
703 r->num_res_facets = 0;
706 yaz_mutex_create(&r->mutex);
709 WRBUF w = wrbuf_alloc();
710 YAZ_SHPTR_INIT(r->record_wrbuf, w);
719 ZOOM_API(ZOOM_resultset)
720 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
723 ZOOM_query s = ZOOM_query_create();
725 ZOOM_query_prefix(s, q);
727 r = ZOOM_connection_search(c, s);
728 ZOOM_query_destroy(s);
732 ZOOM_API(ZOOM_resultset)
733 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
735 ZOOM_resultset r = ZOOM_resultset_create();
738 const char *syntax, *elementSetName, *schema;
739 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
740 r->r_sort_spec = ZOOM_query_get_sortspec(q);
742 ZOOM_query_addref(q);
744 r->options = ZOOM_options_create_with_parent(c->options);
746 r->req_facets = odr_strdup_null(r->odr,
747 ZOOM_options_get(r->options, "facets"));
748 start = ZOOM_options_get_int(r->options, "start", 0);
749 count = ZOOM_options_get_int(r->options, "count", 0);
751 /* If "presentChunk" is defined use that; otherwise "step" */
752 const char *cp = ZOOM_options_get(r->options, "presentChunk");
753 r->step = ZOOM_options_get_int(r->options,
754 (cp != 0 ? "presentChunk": "step"), 0);
756 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
757 r->setname = odr_strdup_null(r->odr,
758 ZOOM_options_get(r->options, "setname"));
759 r->databaseNames = ZOOM_connection_get_databases(c, c->options,
760 &r->num_databaseNames,
763 r->next = c->resultsets;
766 ZOOM_memcached_resultset(r, q);
768 if (c->host_port && c->proto == PROTO_HTTP)
772 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
773 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
777 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
782 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
783 task->u.search.resultset = r;
784 task->u.search.start = start;
785 task->u.search.count = count;
787 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
788 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
789 elementSetName = ZOOM_options_get(r->options, "elementSetName");
790 task->u.search.elementSetName = elementSetName ?
791 xstrdup(elementSetName) : 0;
792 schema = ZOOM_options_get(r->options, "schema");
793 task->u.search.schema = schema ? xstrdup(schema) : 0;
795 ZOOM_resultset_addref(r);
799 while (ZOOM_event(1, &c))
806 ZOOM_resultset_sort(ZOOM_resultset r,
807 const char *sort_type, const char *sort_spec)
809 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
813 ZOOM_resultset_sort1(ZOOM_resultset r,
814 const char *sort_type, const char *sort_spec)
816 ZOOM_connection c = r->connection;
820 newq = ZOOM_query_create();
821 if (ZOOM_query_sortby(newq, sort_spec) < 0)
824 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
825 r, r, sort_type, sort_spec);
829 if (c->host_port && c->proto == PROTO_HTTP)
833 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
834 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
838 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
844 ZOOM_resultset_cache_reset(r);
845 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
846 task->u.sort.resultset = r;
847 task->u.sort.q = newq;
849 ZOOM_resultset_addref(r);
853 while (ZOOM_event(1, &c))
861 ZOOM_resultset_destroy(ZOOM_resultset r)
863 resultset_destroy(r);
866 static void resultset_destroy(ZOOM_resultset r)
870 yaz_mutex_enter(r->mutex);
872 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
874 if (r->refcount == 0)
876 yaz_mutex_leave(r->mutex);
878 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
879 ZOOM_resultset_cache_reset(r);
880 ZOOM_resultset_release(r);
881 ZOOM_query_destroy(r->query);
882 ZOOM_options_destroy(r->options);
884 yaz_mutex_destroy(&r->mutex);
886 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
888 wrbuf_destroy(r->mc_key);
893 yaz_mutex_leave(r->mutex);
897 ZOOM_resultset_size(ZOOM_resultset r)
902 int ZOOM_test_reconnect(ZOOM_connection c)
906 if (!c->reconnect_ok)
908 ZOOM_connection_close(c);
910 c->tasks->running = 0;
911 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
913 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
914 ZOOM_connection_put_event(c, event);
919 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
920 int force_sync, int start, int count)
925 const char *syntax, *elementSetName;
929 yaz_log(log_details0, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
930 " count=%d", r, force_sync, start, count);
935 if (c->host_port && c->proto == PROTO_HTTP)
939 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: no comstack", r);
940 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
944 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: prepare "
949 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
950 task->u.search.resultset = r;
951 task->u.search.start = start;
952 task->u.search.count = count;
954 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
955 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
956 elementSetName = ZOOM_options_get(r->options, "elementSetName");
957 task->u.search.elementSetName = elementSetName
958 ? xstrdup(elementSetName) : 0;
960 cp = ZOOM_options_get(r->options, "schema");
961 task->u.search.schema = cp ? xstrdup(cp) : 0;
963 ZOOM_resultset_addref(r);
965 if (!r->connection->async || force_sync)
966 while (r->connection && ZOOM_event(1, &r->connection))
971 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
972 size_t start, size_t count)
974 int force_present = 0;
978 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
979 r, r, (long) start, (long) count);
982 ZOOM_resultset_retrieve(r, force_present, start, count);
986 for (i = 0; i< count; i++)
987 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
992 ZOOM_resultset_facets_size(ZOOM_resultset r)
994 return r->num_res_facets;
997 ZOOM_API(ZOOM_facet_field)
998 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name)
1000 int num = r->num_res_facets;
1001 ZOOM_facet_field *facets = r->res_facets;
1003 for (i = 0; i < num; i++)
1004 if (!strcmp(facets[i]->facet_name, name))
1009 ZOOM_API(ZOOM_facet_field)
1010 ZOOM_resultset_get_facet_field_by_index(ZOOM_resultset r, int idx)
1012 int num = r->num_res_facets;
1013 ZOOM_facet_field *facets = r->res_facets;
1014 if (idx >= 0 && idx < num)
1019 ZOOM_API(ZOOM_facet_field *)
1020 ZOOM_resultset_facets(ZOOM_resultset r)
1022 return r->res_facets;
1025 ZOOM_API(const char**)
1026 ZOOM_resultset_facets_names(ZOOM_resultset r)
1028 return (const char **) r->facets_names;
1031 ZOOM_API(const char*)
1032 ZOOM_facet_field_name(ZOOM_facet_field field)
1034 return field->facet_name;
1038 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1040 return field->num_terms;
1043 ZOOM_API(const char*)
1044 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq)
1046 *freq = field->facet_terms[idx].frequency;
1047 return field->facet_terms[idx].term;
1051 static void get_cert(ZOOM_connection c)
1056 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1058 ZOOM_connection_option_setl(c, "sslPeerCert",
1059 cert_buf, cert_len);
1064 static zoom_ret do_connect_host(ZOOM_connection c,
1065 const char *logical_url);
1067 static zoom_ret do_connect(ZOOM_connection c)
1069 return do_connect_host(c, c->host_port);
1072 static zoom_ret do_connect_host(ZOOM_connection c, const char *logical_url)
1078 c->cs = cs_create_host_proxy(logical_url, CS_FLAGS_DNS_NO_BLOCK, &add,
1079 c->tproxy ? c->tproxy : c->proxy);
1081 if (c->cs && c->cs->protocol == PROTO_HTTP)
1084 c->proto = PROTO_HTTP;
1086 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1087 ZOOM_connection_close(c);
1088 return zoom_complete;
1093 int ret = cs_connect(c->cs, add);
1096 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1097 ZOOM_connection_put_event(c, event);
1099 if (c->proto == PROTO_Z3950)
1100 ZOOM_connection_Z3950_send_init(c);
1103 /* no init request for SRW .. */
1104 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1105 ZOOM_connection_remove_task(c);
1106 ZOOM_connection_set_mask(c, 0);
1107 ZOOM_connection_exec_task(c);
1109 c->state = STATE_ESTABLISHED;
1110 return zoom_pending;
1114 int mask = ZOOM_SELECT_EXCEPT;
1115 if (c->cs->io_pending & CS_WANT_WRITE)
1116 mask += ZOOM_SELECT_WRITE;
1117 if (c->cs->io_pending & CS_WANT_READ)
1118 mask += ZOOM_SELECT_READ;
1119 ZOOM_connection_set_mask(c, mask);
1120 c->state = STATE_CONNECTING;
1121 return zoom_pending;
1124 c->state = STATE_IDLE;
1125 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1126 return zoom_complete;
1129 /* returns 1 if PDU was sent OK (still pending )
1130 0 if PDU was not sent OK (nothing to wait for)
1133 ZOOM_API(ZOOM_record)
1134 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1136 const char *syntax =
1137 ZOOM_options_get(s->options, "preferredRecordSyntax");
1138 const char *elementSetName =
1139 ZOOM_options_get(s->options, "elementSetName");
1140 const char *schema =
1141 ZOOM_options_get(s->options, "schema");
1143 return ZOOM_record_cache_lookup_i(s, pos, syntax, elementSetName, schema);
1146 ZOOM_API(ZOOM_record)
1147 ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1149 ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1154 * MIKE: I think force_sync should always be zero, but I don't
1155 * want to make this change until I get the go-ahead from
1156 * Adam, in case something depends on the old synchronous
1160 if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1161 ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1162 rec = ZOOM_resultset_record_immediate(r, pos);
1167 ZOOM_API(ZOOM_scanset)
1168 ZOOM_connection_scan(ZOOM_connection c, const char *start)
1171 ZOOM_query q = ZOOM_query_create();
1173 ZOOM_query_prefix(q, start);
1175 s = ZOOM_connection_scan1(c, q);
1176 ZOOM_query_destroy(q);
1181 ZOOM_API(ZOOM_scanset)
1182 ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
1184 ZOOM_scanset scan = 0;
1185 Z_Query *z_query = ZOOM_query_get_Z_Query(q);
1189 scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
1190 scan->connection = c;
1191 scan->odr = odr_createmem(ODR_DECODE);
1192 scan->options = ZOOM_options_create_with_parent(c->options);
1194 scan->scan_response = 0;
1195 scan->srw_scan_response = 0;
1198 ZOOM_query_addref(q);
1199 scan->databaseNames = ZOOM_connection_get_databases(c, c->options,
1200 &scan->num_databaseNames,
1205 ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
1206 task->u.scan.scan = scan;
1211 while (ZOOM_event(1, &c))
1219 ZOOM_scanset_destroy(ZOOM_scanset scan)
1224 if (scan->refcount == 0)
1226 ZOOM_query_destroy(scan->query);
1228 odr_destroy(scan->odr);
1230 ZOOM_options_destroy(scan->options);
1235 static zoom_ret send_package(ZOOM_connection c)
1239 yaz_log(c->log_details, "%p send_package", c);
1241 return zoom_complete;
1242 assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1244 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1245 ZOOM_connection_put_event(c, event);
1247 c->buf_out = c->tasks->u.package->buf_out;
1248 c->len_out = c->tasks->u.package->len_out;
1250 return ZOOM_send_buf(c);
1254 ZOOM_scanset_size(ZOOM_scanset scan)
1259 if (scan->scan_response && scan->scan_response->entries)
1260 return scan->scan_response->entries->num_entries;
1261 else if (scan->srw_scan_response)
1262 return scan->srw_scan_response->num_terms;
1266 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
1268 const char **value_term, size_t *value_len,
1269 const char **disp_term, size_t *disp_len)
1271 size_t noent = ZOOM_scanset_size(scan);
1282 if (scan->scan_response)
1284 Z_ScanResponse *res = scan->scan_response;
1285 if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1287 Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1289 *value_term = (const char *) t->term->u.general->buf;
1290 *value_len = t->term->u.general->len;
1293 *disp_term = t->displayTerm;
1294 *disp_len = strlen(*disp_term);
1296 else if (t->term->which == Z_Term_general)
1298 *disp_term = (const char *) t->term->u.general->buf;
1299 *disp_len = t->term->u.general->len;
1301 *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1304 if (scan->srw_scan_response)
1306 Z_SRW_scanResponse *res = scan->srw_scan_response;
1307 Z_SRW_scanTerm *t = res->terms + pos;
1310 *value_term = t->value;
1311 *value_len = strlen(*value_term);
1314 *disp_term = t->displayTerm;
1316 *disp_term = t->value;
1317 *disp_len = strlen(*disp_term);
1318 *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
1323 ZOOM_API(const char *)
1324 ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
1325 size_t *occ, size_t *len)
1327 const char *value_term = 0;
1328 size_t value_len = 0;
1329 const char *disp_term = 0;
1330 size_t disp_len = 0;
1332 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1333 &disp_term, &disp_len);
1339 ZOOM_API(const char *)
1340 ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
1341 size_t *occ, size_t *len)
1343 const char *value_term = 0;
1344 size_t value_len = 0;
1345 const char *disp_term = 0;
1346 size_t disp_len = 0;
1348 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1349 &disp_term, &disp_len);
1355 ZOOM_API(const char *)
1356 ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
1358 return ZOOM_options_get(scan->options, key);
1362 ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
1365 ZOOM_options_set(scan->options, key, val);
1369 ZOOM_API(ZOOM_package)
1370 ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
1372 ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
1375 p->odr_out = odr_createmem(ODR_ENCODE);
1376 p->options = ZOOM_options_create_with_parent2(options, c->options);
1384 ZOOM_package_destroy(ZOOM_package p)
1389 if (p->refcount == 0)
1391 odr_destroy(p->odr_out);
1394 ZOOM_options_destroy(p->options);
1399 ZOOM_API(const char *)
1400 ZOOM_package_option_get(ZOOM_package p, const char *key)
1402 return ZOOM_options_get(p->options, key);
1405 ZOOM_API(const char *)
1406 ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
1408 return ZOOM_options_getl(p->options, key, lenp);
1412 ZOOM_package_option_set(ZOOM_package p, const char *key,
1415 ZOOM_options_set(p->options, key, val);
1419 ZOOM_package_option_setl(ZOOM_package p, const char *key,
1420 const char *val, int len)
1422 ZOOM_options_setl(p->options, key, val, len);
1426 ZOOM_connection_exec_task(ZOOM_connection c)
1428 ZOOM_task task = c->tasks;
1429 zoom_ret ret = zoom_complete;
1433 yaz_log(c->log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
1434 c, task->which, task->running);
1435 if (c->error != ZOOM_ERROR_NONE)
1437 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1438 "removing tasks because of error = %d", c, c->error);
1439 ZOOM_connection_remove_tasks(c);
1444 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1445 "task already running", c);
1449 ret = zoom_complete;
1450 if (c->cs || task->which == ZOOM_TASK_CONNECT)
1452 switch (task->which)
1454 case ZOOM_TASK_SEARCH:
1455 if (c->proto == PROTO_HTTP)
1456 ret = ZOOM_connection_srw_send_search(c);
1458 ret = ZOOM_connection_Z3950_search(c);
1460 case ZOOM_TASK_CONNECT:
1461 ret = do_connect(c);
1463 case ZOOM_TASK_SCAN:
1464 if (c->proto == PROTO_HTTP)
1465 ret = ZOOM_connection_srw_send_scan(c);
1467 ret = ZOOM_connection_Z3950_send_scan(c);
1469 case ZOOM_TASK_PACKAGE:
1470 ret = send_package(c);
1472 case ZOOM_TASK_SORT:
1473 c->tasks->u.sort.resultset->r_sort_spec =
1474 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1475 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1481 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1482 "remove tasks because no connection exist", c);
1483 ZOOM_connection_remove_tasks(c);
1485 if (ret == zoom_complete)
1487 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1488 "task removed (complete)", c);
1489 ZOOM_connection_remove_task(c);
1492 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1499 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri)
1501 Z_GDU *gdu = z_get_HTTP_Request_uri(c->odr_out, uri, 0, c->proxy ? 1 : 0);
1503 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1504 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1506 yaz_cookies_request(c->cookies, c->odr_out, gdu->u.HTTP_Request);
1507 if (c->user && c->password)
1509 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1510 c->user, c->password);
1512 return ZOOM_send_GDU(c, gdu);
1515 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu)
1519 int r = z_GDU(c->odr_out, &gdu, 0, 0);
1521 return zoom_complete;
1523 z_GDU(c->odr_print, &gdu, 0, 0);
1525 z_GDU(c->odr_save, &gdu, 0, 0);
1526 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1527 odr_reset(c->odr_out);
1529 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1530 ZOOM_connection_put_event(c, event);
1532 return ZOOM_send_buf(c);
1536 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1537 const char *addinfo, const char *addinfo2)
1539 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1544 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1546 zoom_ret cret = zoom_complete;
1549 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1551 const char *location;
1553 ZOOM_connection_set_mask(c, 0);
1554 yaz_log(c->log_details, "%p handle_http", c);
1556 yaz_cookies_response(c->cookies, hres);
1557 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1558 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1561 if (c->no_redirects > 10)
1563 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1564 c->no_redirects = 0;
1565 ZOOM_connection_close(c);
1569 /* since redirect may change host we just reconnect. A smarter
1570 implementation might check whether it's the same server */
1572 int host_change = 0;
1573 location = yaz_check_location(c->odr_in, c->host_port,
1574 location, &host_change);
1575 if (do_connect_host(c, location) == zoom_complete)
1576 return; /* connect failed.. */
1577 cs_rcvconnect(c->cs);
1578 send_HTTP_redirect(c, location);
1584 ret = ZOOM_handle_sru(c, hres, &cret, &addinfo);
1587 if (c->no_redirects) /* end of redirect. change hosts again */
1588 ZOOM_connection_close(c);
1590 c->no_redirects = 0;
1594 if (hres->code != 200)
1595 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1598 yaz_log(YLOG_LOG, "set error... addinfo=%s", addinfo ?
1600 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1602 ZOOM_connection_close(c);
1604 if (cret == zoom_complete)
1606 yaz_log(c->log_details, "removing tasks in handle_http");
1607 ZOOM_connection_remove_task(c);
1611 if (!strcmp(hres->version, "1.0"))
1613 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1614 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1619 /* HTTP 1.1: only if no close we stay alive.. */
1620 if (connection_head && !strcmp(connection_head, "close"))
1625 ZOOM_connection_close(c);
1628 c->tasks->running = 0;
1629 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1630 c->reconnect_ok = 0;
1634 c->reconnect_ok = 1; /* if the server closes anyway */
1639 static int do_read(ZOOM_connection c)
1644 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1645 ZOOM_connection_put_event(c, event);
1647 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1648 more = cs_more(c->cs);
1649 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1654 if (!ZOOM_test_reconnect(c))
1656 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1657 ZOOM_connection_close(c);
1665 odr_reset(c->odr_in);
1666 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1667 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1668 ZOOM_connection_put_event(c, event);
1670 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1673 int err = odr_geterrorx(c->odr_in, &x);
1675 const char *element = odr_getelement(c->odr_in);
1676 yaz_snprintf(msg, sizeof(msg),
1677 "ODR code %d:%d element=%s offset=%d",
1678 err, x, element ? element : "<unknown>",
1679 odr_offset(c->odr_in));
1680 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1683 FILE *ber_file = yaz_log_file();
1685 odr_dumpBER(ber_file, c->buf_in, r);
1687 ZOOM_connection_close(c);
1692 z_GDU(c->odr_print, &gdu, 0, 0);
1694 z_GDU(c->odr_save, &gdu, 0, 0);
1695 if (gdu->which == Z_GDU_Z3950)
1696 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1697 else if (gdu->which == Z_GDU_HTTP_Response)
1700 handle_http(c, gdu->u.HTTP_Response);
1702 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1703 ZOOM_connection_close(c);
1711 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1716 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1717 ZOOM_connection_put_event(c, event);
1719 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1720 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1722 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1723 if (ZOOM_test_reconnect(c))
1725 return zoom_pending;
1727 if (c->state == STATE_CONNECTING)
1728 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1730 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1731 ZOOM_connection_close(c);
1732 return zoom_complete;
1736 int mask = ZOOM_SELECT_EXCEPT;
1737 if (c->cs->io_pending & CS_WANT_WRITE)
1738 mask += ZOOM_SELECT_WRITE;
1739 if (c->cs->io_pending & CS_WANT_READ)
1740 mask += ZOOM_SELECT_READ;
1741 ZOOM_connection_set_mask(c, mask);
1742 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1747 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1748 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1751 return zoom_pending;
1754 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1756 return do_write_ex(c, c->buf_out, c->len_out);
1760 ZOOM_API(const char *)
1761 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1763 if (!strcmp(key, "APDU"))
1765 return c->saveAPDU_wrbuf ? wrbuf_cstr(c->saveAPDU_wrbuf) : "";
1768 return ZOOM_options_get(c->options, key);
1771 ZOOM_API(const char *)
1772 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1774 if (!strcmp(key, "APDU"))
1776 if (c->saveAPDU_wrbuf)
1778 *lenp = wrbuf_len(c->saveAPDU_wrbuf);
1779 return wrbuf_cstr(c->saveAPDU_wrbuf);
1788 return ZOOM_options_getl(c->options, key, lenp);
1792 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1795 if (!strcmp(key, "saveAPDU"))
1797 if (val && strcmp(val, "0"))
1799 if (!c->saveAPDU_wrbuf)
1800 c->saveAPDU_wrbuf = wrbuf_alloc();
1802 wrbuf_rewind(c->saveAPDU_wrbuf);
1806 wrbuf_destroy(c->saveAPDU_wrbuf);
1807 c->saveAPDU_wrbuf = 0;
1809 ZOOM_connection_save_apdu_wrbuf(c, c->saveAPDU_wrbuf);
1812 ZOOM_options_set(c->options, key, val);
1816 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1817 const char *val, int len)
1819 ZOOM_options_setl(c->options, key, val, len);
1822 ZOOM_API(const char *)
1823 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1825 return ZOOM_options_get(r->options, key);
1829 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1832 ZOOM_options_set(r->options, key, val);
1837 ZOOM_connection_errcode(ZOOM_connection c)
1839 return ZOOM_connection_error(c, 0, 0);
1842 ZOOM_API(const char *)
1843 ZOOM_connection_errmsg(ZOOM_connection c)
1846 ZOOM_connection_error(c, &msg, 0);
1850 ZOOM_API(const char *)
1851 ZOOM_connection_addinfo(ZOOM_connection c)
1853 const char *addinfo;
1854 ZOOM_connection_error(c, 0, &addinfo);
1858 ZOOM_API(const char *)
1859 ZOOM_connection_diagset(ZOOM_connection c)
1861 const char *diagset;
1862 ZOOM_connection_error_x(c, 0, 0, &diagset);
1866 ZOOM_API(const char *)
1867 ZOOM_diag_str(int error)
1871 case ZOOM_ERROR_NONE:
1873 case ZOOM_ERROR_CONNECT:
1874 return "Connect failed";
1875 case ZOOM_ERROR_MEMORY:
1876 return "Out of memory";
1877 case ZOOM_ERROR_ENCODE:
1878 return "Encoding failed";
1879 case ZOOM_ERROR_DECODE:
1880 return "Decoding failed";
1881 case ZOOM_ERROR_CONNECTION_LOST:
1882 return "Connection lost";
1883 case ZOOM_ERROR_INIT:
1884 return "Init rejected";
1885 case ZOOM_ERROR_INTERNAL:
1886 return "Internal failure";
1887 case ZOOM_ERROR_TIMEOUT:
1889 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1890 return "Unsupported protocol";
1891 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1892 return "Unsupported query type";
1893 case ZOOM_ERROR_INVALID_QUERY:
1894 return "Invalid query";
1895 case ZOOM_ERROR_CQL_PARSE:
1896 return "CQL parsing error";
1897 case ZOOM_ERROR_CQL_TRANSFORM:
1898 return "CQL transformation error";
1899 case ZOOM_ERROR_CCL_CONFIG:
1900 return "CCL configuration error";
1901 case ZOOM_ERROR_CCL_PARSE:
1902 return "CCL parsing error";
1903 case ZOOM_ERROR_ES_INVALID_ACTION:
1904 return "Extended Service. invalid action";
1905 case ZOOM_ERROR_ES_INVALID_VERSION:
1906 return "Extended Service. invalid version";
1907 case ZOOM_ERROR_ES_INVALID_SYNTAX:
1908 return "Extended Service. invalid syntax";
1909 case ZOOM_ERROR_MEMCACHED:
1912 return diagbib1_str(error);
1917 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1918 const char **addinfo, const char **diagset)
1920 int error = c->error;
1923 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1924 *cp = ZOOM_diag_str(error);
1925 else if (!strcmp(c->diagset, "HTTP"))
1926 *cp = z_HTTP_errmsg(c->error);
1927 else if (!strcmp(c->diagset, "Bib-1"))
1928 *cp = ZOOM_diag_str(error);
1929 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1930 *cp = yaz_diag_srw_str(c->error);
1932 *cp = "Unknown error and diagnostic set";
1935 *addinfo = c->addinfo ? c->addinfo : "";
1937 *diagset = c->diagset ? c->diagset : "";
1942 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1943 const char **addinfo)
1945 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1948 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1950 ZOOM_Event event = 0;
1951 int r = cs_look(c->cs);
1952 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1957 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1958 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1959 ZOOM_connection_close(c);
1960 ZOOM_connection_put_event(c, event);
1962 else if (r == CS_CONNECT)
1964 int ret = ret = cs_rcvconnect(c->cs);
1965 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
1966 "cs_rcvconnect returned %d", c, ret);
1969 int mask = ZOOM_SELECT_EXCEPT;
1970 if (c->cs->io_pending & CS_WANT_WRITE)
1971 mask += ZOOM_SELECT_WRITE;
1972 if (c->cs->io_pending & CS_WANT_READ)
1973 mask += ZOOM_SELECT_READ;
1974 ZOOM_connection_set_mask(c, mask);
1975 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1976 ZOOM_connection_put_event(c, event);
1980 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1981 ZOOM_connection_put_event(c, event);
1983 if (c->proto == PROTO_Z3950)
1984 ZOOM_connection_Z3950_send_init(c);
1987 /* no init request for SRW .. */
1988 if (c->tasks->which == ZOOM_TASK_CONNECT)
1990 ZOOM_connection_remove_task(c);
1991 ZOOM_connection_set_mask(c, 0);
1993 ZOOM_connection_exec_task(c);
1995 c->state = STATE_ESTABLISHED;
1999 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
2000 ZOOM_connection_close(c);
2005 if (mask & ZOOM_SELECT_EXCEPT)
2007 if (!ZOOM_test_reconnect(c))
2009 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
2010 ZOOM_connection_close(c);
2014 if (mask & ZOOM_SELECT_READ)
2016 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2022 ZOOM_connection_last_event(ZOOM_connection cs)
2025 return ZOOM_EVENT_NONE;
2026 return cs->last_event;
2030 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2034 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2035 /* timeout and this connection was waiting */
2036 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2037 ZOOM_connection_close(c);
2038 ZOOM_connection_put_event(c, event);
2044 ZOOM_connection_process(ZOOM_connection c)
2050 event = ZOOM_connection_get_event(c);
2053 ZOOM_Event_destroy(event);
2056 ZOOM_connection_exec_task(c);
2057 event = ZOOM_connection_get_event(c);
2060 ZOOM_Event_destroy(event);
2067 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2071 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2073 for (i = 0; i<no; i++)
2075 ZOOM_connection c = cs[i];
2077 if (c && ZOOM_connection_process(c))
2083 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2085 if (c->mask && mask)
2086 ZOOM_connection_do_io(c, mask);
2090 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2093 return cs_fileno(c->cs);
2097 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2105 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2112 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2114 return ZOOM_options_get_int(c->options, "timeout", 30);
2117 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2122 ZOOM_connection_set_mask(c, 0);
2123 c->state = STATE_IDLE;
2129 * c-file-style: "Stroustrup"
2130 * indent-tabs-mode: nil
2132 * vim: shiftwidth=4 tabstop=8 expandtab