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)
376 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
377 c, host ? host : "null", portnum);
379 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
380 ZOOM_connection_remove_tasks(c);
384 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
385 odr_destroy(c->odr_print);
387 if (ZOOM_options_get_bool(c->options, "apdulog", 0))
389 c->odr_print = odr_createmem(ODR_PRINT);
390 odr_setprint(c->odr_print, yaz_log_file());
397 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
401 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
404 val = ZOOM_options_get(c->options, "proxy");
407 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
408 c->proxy = xstrdup(val);
413 val = ZOOM_options_get(c->options, "tproxy");
416 yaz_log(c->log_details, "%p ZOOM_connection_connect tproxy=%s", c, val);
417 c->tproxy = xstrdup(val);
422 val = ZOOM_options_get(c->options, "charset");
425 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
426 c->charset = xstrdup(val);
430 val = ZOOM_options_get(c->options, "lang");
433 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
434 c->lang = xstrdup(val);
445 sprintf(hostn, "%.80s:%d", host, portnum);
446 c->host_port = xstrdup(hostn);
449 c->host_port = xstrdup(host);
454 * If the "<scheme>:" part of the host string is preceded by one
455 * or more comma-separated <name>=<value> pairs, these are taken
456 * to be options to be set on the connection object. Among other
457 * applications, this facility can be used to embed authentication
459 * user=admin,password=secret,tcp:localhost:9999
461 char *remainder = c->host_port;
462 char *pcolon = strchr(remainder, ':');
465 while ((pcomma = strchr(remainder, ',')) != 0 &&
466 (pcolon == 0 || pcomma < pcolon))
469 if ((pequals = strchr(remainder, '=')) != 0)
472 ZOOM_connection_option_set(c, remainder, pequals+1);
474 remainder = pcomma+1;
477 if (remainder != c->host_port)
479 remainder = xstrdup(remainder);
481 c->host_port = remainder;
485 val = ZOOM_options_get(c->options, "sru");
486 c->sru_mode = get_sru_mode_from_string(val);
488 xfree(c->sru_version);
489 val = ZOOM_options_get(c->options, "sru_version");
490 c->sru_version = xstrdup(val ? val : "1.2");
492 ZOOM_options_set(c->options, "host", c->host_port);
494 xfree(c->cookie_out);
496 val = ZOOM_options_get(c->options, "cookie");
499 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
500 c->cookie_out = xstrdup(val);
505 val = ZOOM_options_get(c->options, "clientIP");
508 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
510 c->client_IP = xstrdup(val);
515 val = ZOOM_options_get(c->options, "group");
517 c->group = xstrdup(val);
521 val = ZOOM_options_get(c->options, "user");
523 c->user = xstrdup(val);
527 val = ZOOM_options_get(c->options, "password");
529 val = ZOOM_options_get(c->options, "pass");
531 c->password = xstrdup(val);
533 val = ZOOM_options_get(c->options, "authenticationMode");
534 if (val && !strcmp(val, "url"))
535 c->url_authentication = 1;
537 c->url_authentication = 0;
539 c->maximum_record_size =
540 ZOOM_options_get_int(c->options, "maximumRecordSize", 64*1024*1024);
541 c->preferred_message_size =
542 ZOOM_options_get_int(c->options, "preferredMessageSize", 64*1024*1024);
544 c->async = ZOOM_options_get_bool(c->options, "async", 0);
546 yaz_cookies_destroy(c->cookies);
547 c->cookies = yaz_cookies_create();
549 if (c->sru_mode == zoom_sru_error)
551 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, val);
552 ZOOM_connection_remove_tasks(c);
556 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
557 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
561 while (ZOOM_event(1, &c))
566 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
570 /* remove ourselves from the resultsets in connection */
571 ZOOM_resultset *rp = &r->connection->resultsets;
574 assert(*rp); /* we must be in this list!! */
576 { /* OK, we're here - take us out of it */
587 ZOOM_connection_destroy(ZOOM_connection c)
592 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
596 for (r = c->resultsets; r; r = r->next)
602 odr_destroy(c->odr_in);
603 odr_destroy(c->odr_out);
605 odr_destroy(c->odr_save);
608 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
609 odr_destroy(c->odr_print);
611 ZOOM_options_destroy(c->options);
612 ZOOM_connection_remove_tasks(c);
613 ZOOM_connection_remove_events(c);
619 xfree(c->cookie_out);
625 xfree(c->sru_version);
626 yaz_cookies_destroy(c->cookies);
627 wrbuf_destroy(c->saveAPDU_wrbuf);
631 void ZOOM_resultset_addref(ZOOM_resultset r)
635 yaz_mutex_enter(r->mutex);
637 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
639 yaz_mutex_leave(r->mutex);
643 static int g_resultsets = 0;
644 static YAZ_MUTEX g_resultset_mutex = 0;
646 /* TODO We need to initialize this before running threaded:
647 * call resultset_use(0) */
649 static int resultset_use(int delta) {
651 if (g_resultset_mutex == 0)
652 yaz_mutex_create(&g_resultset_mutex);
653 yaz_mutex_enter(g_resultset_mutex);
654 g_resultsets += delta;
655 resultset_count = g_resultsets;
656 yaz_mutex_leave(g_resultset_mutex);
657 return resultset_count;
660 int resultsets_count(void) {
661 return resultset_use(0);
664 ZOOM_resultset ZOOM_resultset_create(void)
667 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
671 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
674 r->odr = odr_createmem(ODR_ENCODE);
678 for (i = 0; i<RECORD_HASH_SIZE; i++)
679 r->record_hash[i] = 0;
683 r->databaseNames = 0;
684 r->num_databaseNames = 0;
689 yaz_mutex_create(&r->mutex);
692 WRBUF w = wrbuf_alloc();
693 YAZ_SHPTR_INIT(r->record_wrbuf, w);
700 ZOOM_API(ZOOM_resultset)
701 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
704 ZOOM_query s = ZOOM_query_create();
706 ZOOM_query_prefix(s, q);
708 r = ZOOM_connection_search(c, s);
709 ZOOM_query_destroy(s);
713 ZOOM_API(ZOOM_resultset)
714 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
716 ZOOM_resultset r = ZOOM_resultset_create();
720 const char *syntax, *elementSetName, *schema;
722 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
723 r->r_sort_spec = ZOOM_query_get_sortspec(q);
726 r->options = ZOOM_options_create_with_parent(c->options);
728 start = ZOOM_options_get_int(r->options, "start", 0);
729 count = ZOOM_options_get_int(r->options, "count", 0);
731 /* If "presentChunk" is defined use that; otherwise "step" */
732 const char *cp = ZOOM_options_get(r->options, "presentChunk");
733 r->step = ZOOM_options_get_int(r->options,
734 (cp != 0 ? "presentChunk": "step"), 0);
736 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
737 cp = ZOOM_options_get(r->options, "setname");
739 r->setname = xstrdup(cp);
741 r->databaseNames = ZOOM_connection_get_databases(c, c->options, &r->num_databaseNames,
745 r->next = c->resultsets;
747 if (c->host_port && c->proto == PROTO_HTTP)
751 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
752 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
756 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
761 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
762 task->u.search.resultset = r;
763 task->u.search.start = start;
764 task->u.search.count = count;
765 task->u.search.recv_search_fired = 0;
767 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
768 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
769 elementSetName = ZOOM_options_get(r->options, "elementSetName");
770 task->u.search.elementSetName = elementSetName ?
771 xstrdup(elementSetName) : 0;
772 schema = ZOOM_options_get(r->options, "schema");
773 task->u.search.schema = schema ? xstrdup(schema) : 0;
775 ZOOM_resultset_addref(r);
777 ZOOM_query_addref(q);
781 while (ZOOM_event(1, &c))
788 ZOOM_resultset_sort(ZOOM_resultset r,
789 const char *sort_type, const char *sort_spec)
791 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
795 ZOOM_resultset_sort1(ZOOM_resultset r,
796 const char *sort_type, const char *sort_spec)
798 ZOOM_connection c = r->connection;
802 newq = ZOOM_query_create();
803 if (ZOOM_query_sortby(newq, sort_spec) < 0)
806 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
807 r, r, sort_type, sort_spec);
811 if (c->host_port && c->proto == PROTO_HTTP)
815 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
816 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
820 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
826 ZOOM_resultset_cache_reset(r);
827 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
828 task->u.sort.resultset = r;
829 task->u.sort.q = newq;
831 ZOOM_resultset_addref(r);
835 while (ZOOM_event(1, &c))
843 ZOOM_resultset_destroy(ZOOM_resultset r)
845 resultset_destroy(r);
848 static void resultset_destroy(ZOOM_resultset r)
852 yaz_mutex_enter(r->mutex);
854 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
856 if (r->refcount == 0)
858 yaz_mutex_leave(r->mutex);
860 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
861 ZOOM_resultset_cache_reset(r);
862 ZOOM_resultset_release(r);
863 ZOOM_query_destroy(r->query);
864 ZOOM_options_destroy(r->options);
867 yaz_mutex_destroy(&r->mutex);
869 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
875 yaz_mutex_leave(r->mutex);
879 ZOOM_resultset_size(ZOOM_resultset r)
884 int ZOOM_test_reconnect(ZOOM_connection c)
888 if (!c->reconnect_ok)
890 ZOOM_connection_close(c);
892 c->tasks->running = 0;
893 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
895 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
896 ZOOM_connection_put_event(c, event);
901 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
902 int force_sync, int start, int count)
907 const char *syntax, *elementSetName;
911 yaz_log(log_details0, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
912 " count=%d", r, force_sync, start, count);
917 if (c->host_port && c->proto == PROTO_HTTP)
921 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: no comstack", r);
922 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
926 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: prepare "
931 task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
932 task->u.retrieve.resultset = r;
933 task->u.retrieve.start = start;
934 task->u.retrieve.count = count;
936 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
937 task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
938 elementSetName = ZOOM_options_get(r->options, "elementSetName");
939 task->u.retrieve.elementSetName = elementSetName
940 ? xstrdup(elementSetName) : 0;
942 cp = ZOOM_options_get(r->options, "schema");
943 task->u.retrieve.schema = cp ? xstrdup(cp) : 0;
945 ZOOM_resultset_addref(r);
947 if (!r->connection->async || force_sync)
948 while (r->connection && ZOOM_event(1, &r->connection))
953 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
954 size_t start, size_t count)
956 int force_present = 0;
960 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
961 r, r, (long) start, (long) count);
964 ZOOM_resultset_retrieve(r, force_present, start, count);
968 for (i = 0; i< count; i++)
969 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
974 ZOOM_resultset_facets_size(ZOOM_resultset r) {
975 return r->num_facets;
978 ZOOM_API(ZOOM_facet_field)
979 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name) {
980 int num = r->num_facets;
981 ZOOM_facet_field *facets = r->facets;
983 for (index = 0; index < num; index++) {
984 if (!strcmp(facets[index]->facet_name, name)) {
985 return facets[index];
991 ZOOM_API(ZOOM_facet_field)
992 ZOOM_resultset_get_facet_field_by_index(ZOOM_resultset r, int index) {
993 int num = r->num_facets;
994 ZOOM_facet_field *facets = r->facets;
995 if (index >= 0 && index < num) {
996 return facets[index];
1001 ZOOM_API(ZOOM_facet_field *)
1002 ZOOM_resultset_facets(ZOOM_resultset r)
1007 ZOOM_API(const char**)
1008 ZOOM_resultset_facets_names(ZOOM_resultset r)
1010 return (const char **) r->facets_names;
1013 ZOOM_API(const char*)
1014 ZOOM_facet_field_name(ZOOM_facet_field field)
1016 return field->facet_name;
1020 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1022 return field->num_terms;
1025 ZOOM_API(const char*)
1026 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1027 *freq = field->facet_terms[idx].frequency;
1028 return field->facet_terms[idx].term;
1032 static void get_cert(ZOOM_connection c)
1037 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1039 ZOOM_connection_option_setl(c, "sslPeerCert",
1040 cert_buf, cert_len);
1045 static zoom_ret do_connect_host(ZOOM_connection c,
1046 const char *logical_url);
1048 static zoom_ret do_connect(ZOOM_connection c)
1050 return do_connect_host(c, c->host_port);
1053 static zoom_ret do_connect_host(ZOOM_connection c, const char *logical_url)
1059 c->cs = cs_create_host_proxy(logical_url, 0, &add,
1060 c->tproxy ? c->tproxy : c->proxy);
1062 if (c->cs && c->cs->protocol == PROTO_HTTP)
1065 c->proto = PROTO_HTTP;
1067 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1068 ZOOM_connection_close(c);
1069 return zoom_complete;
1074 int ret = cs_connect(c->cs, add);
1077 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1078 ZOOM_connection_put_event(c, event);
1080 if (c->proto == PROTO_Z3950)
1081 ZOOM_connection_Z3950_send_init(c);
1084 /* no init request for SRW .. */
1085 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1086 ZOOM_connection_remove_task(c);
1087 ZOOM_connection_set_mask(c, 0);
1088 ZOOM_connection_exec_task(c);
1090 c->state = STATE_ESTABLISHED;
1091 return zoom_pending;
1095 int mask = ZOOM_SELECT_EXCEPT;
1096 if (c->cs->io_pending & CS_WANT_WRITE)
1097 mask += ZOOM_SELECT_WRITE;
1098 if (c->cs->io_pending & CS_WANT_READ)
1099 mask += ZOOM_SELECT_READ;
1100 ZOOM_connection_set_mask(c, mask);
1101 c->state = STATE_CONNECTING;
1102 return zoom_pending;
1105 c->state = STATE_IDLE;
1106 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1107 return zoom_complete;
1110 /* returns 1 if PDU was sent OK (still pending )
1111 0 if PDU was not sent OK (nothing to wait for)
1114 ZOOM_API(ZOOM_record)
1115 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1117 const char *syntax =
1118 ZOOM_options_get(s->options, "preferredRecordSyntax");
1119 const char *elementSetName =
1120 ZOOM_options_get(s->options, "elementSetName");
1121 const char *schema =
1122 ZOOM_options_get(s->options, "schema");
1124 return ZOOM_record_cache_lookup(s, pos, syntax, elementSetName, schema);
1127 ZOOM_API(ZOOM_record)
1128 ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1130 ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1135 * MIKE: I think force_sync should always be zero, but I don't
1136 * want to make this change until I get the go-ahead from
1137 * Adam, in case something depends on the old synchronous
1141 if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1142 ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1143 rec = ZOOM_resultset_record_immediate(r, pos);
1148 ZOOM_API(ZOOM_scanset)
1149 ZOOM_connection_scan(ZOOM_connection c, const char *start)
1152 ZOOM_query q = ZOOM_query_create();
1154 ZOOM_query_prefix(q, start);
1156 s = ZOOM_connection_scan1(c, q);
1157 ZOOM_query_destroy(q);
1162 ZOOM_API(ZOOM_scanset)
1163 ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
1165 ZOOM_scanset scan = 0;
1166 Z_Query *z_query = ZOOM_query_get_Z_Query(q);
1170 scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
1171 scan->connection = c;
1172 scan->odr = odr_createmem(ODR_DECODE);
1173 scan->options = ZOOM_options_create_with_parent(c->options);
1175 scan->scan_response = 0;
1176 scan->srw_scan_response = 0;
1179 ZOOM_query_addref(q);
1180 scan->databaseNames = ZOOM_connection_get_databases(c, c->options,
1181 &scan->num_databaseNames,
1186 ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
1187 task->u.scan.scan = scan;
1192 while (ZOOM_event(1, &c))
1200 ZOOM_scanset_destroy(ZOOM_scanset scan)
1205 if (scan->refcount == 0)
1207 ZOOM_query_destroy(scan->query);
1209 odr_destroy(scan->odr);
1211 ZOOM_options_destroy(scan->options);
1216 static zoom_ret send_package(ZOOM_connection c)
1220 yaz_log(c->log_details, "%p send_package", c);
1222 return zoom_complete;
1223 assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1225 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1226 ZOOM_connection_put_event(c, event);
1228 c->buf_out = c->tasks->u.package->buf_out;
1229 c->len_out = c->tasks->u.package->len_out;
1231 return ZOOM_send_buf(c);
1235 ZOOM_scanset_size(ZOOM_scanset scan)
1240 if (scan->scan_response && scan->scan_response->entries)
1241 return scan->scan_response->entries->num_entries;
1242 else if (scan->srw_scan_response)
1243 return scan->srw_scan_response->num_terms;
1247 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
1249 const char **value_term, size_t *value_len,
1250 const char **disp_term, size_t *disp_len)
1252 size_t noent = ZOOM_scanset_size(scan);
1263 if (scan->scan_response)
1265 Z_ScanResponse *res = scan->scan_response;
1266 if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1268 Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1270 *value_term = (const char *) t->term->u.general->buf;
1271 *value_len = t->term->u.general->len;
1274 *disp_term = t->displayTerm;
1275 *disp_len = strlen(*disp_term);
1277 else if (t->term->which == Z_Term_general)
1279 *disp_term = (const char *) t->term->u.general->buf;
1280 *disp_len = t->term->u.general->len;
1282 *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1285 if (scan->srw_scan_response)
1287 Z_SRW_scanResponse *res = scan->srw_scan_response;
1288 Z_SRW_scanTerm *t = res->terms + pos;
1291 *value_term = t->value;
1292 *value_len = strlen(*value_term);
1295 *disp_term = t->displayTerm;
1297 *disp_term = t->value;
1298 *disp_len = strlen(*disp_term);
1299 *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
1304 ZOOM_API(const char *)
1305 ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
1306 size_t *occ, size_t *len)
1308 const char *value_term = 0;
1309 size_t value_len = 0;
1310 const char *disp_term = 0;
1311 size_t disp_len = 0;
1313 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1314 &disp_term, &disp_len);
1320 ZOOM_API(const char *)
1321 ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
1322 size_t *occ, size_t *len)
1324 const char *value_term = 0;
1325 size_t value_len = 0;
1326 const char *disp_term = 0;
1327 size_t disp_len = 0;
1329 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1330 &disp_term, &disp_len);
1336 ZOOM_API(const char *)
1337 ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
1339 return ZOOM_options_get(scan->options, key);
1343 ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
1346 ZOOM_options_set(scan->options, key, val);
1350 ZOOM_API(ZOOM_package)
1351 ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
1353 ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
1356 p->odr_out = odr_createmem(ODR_ENCODE);
1357 p->options = ZOOM_options_create_with_parent2(options, c->options);
1365 ZOOM_package_destroy(ZOOM_package p)
1370 if (p->refcount == 0)
1372 odr_destroy(p->odr_out);
1375 ZOOM_options_destroy(p->options);
1380 ZOOM_API(const char *)
1381 ZOOM_package_option_get(ZOOM_package p, const char *key)
1383 return ZOOM_options_get(p->options, key);
1386 ZOOM_API(const char *)
1387 ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
1389 return ZOOM_options_getl(p->options, key, lenp);
1393 ZOOM_package_option_set(ZOOM_package p, const char *key,
1396 ZOOM_options_set(p->options, key, val);
1400 ZOOM_package_option_setl(ZOOM_package p, const char *key,
1401 const char *val, int len)
1403 ZOOM_options_setl(p->options, key, val, len);
1407 ZOOM_connection_exec_task(ZOOM_connection c)
1409 ZOOM_task task = c->tasks;
1410 zoom_ret ret = zoom_complete;
1414 yaz_log(c->log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
1415 c, task->which, task->running);
1416 if (c->error != ZOOM_ERROR_NONE)
1418 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1419 "removing tasks because of error = %d", c, c->error);
1420 ZOOM_connection_remove_tasks(c);
1425 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1426 "task already running", c);
1430 ret = zoom_complete;
1431 if (c->cs || task->which == ZOOM_TASK_CONNECT)
1433 switch (task->which)
1435 case ZOOM_TASK_SEARCH:
1436 if (c->proto == PROTO_HTTP)
1437 ret = ZOOM_connection_srw_send_search(c);
1439 ret = ZOOM_connection_Z3950_send_search(c);
1441 case ZOOM_TASK_RETRIEVE:
1442 if (c->proto == PROTO_HTTP)
1443 ret = ZOOM_connection_srw_send_search(c);
1445 ret = send_Z3950_present(c);
1447 case ZOOM_TASK_CONNECT:
1448 ret = do_connect(c);
1450 case ZOOM_TASK_SCAN:
1451 if (c->proto == PROTO_HTTP)
1452 ret = ZOOM_connection_srw_send_scan(c);
1454 ret = ZOOM_connection_Z3950_send_scan(c);
1456 case ZOOM_TASK_PACKAGE:
1457 ret = send_package(c);
1459 case ZOOM_TASK_SORT:
1460 c->tasks->u.sort.resultset->r_sort_spec =
1461 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1462 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1468 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1469 "remove tasks because no connection exist", c);
1470 ZOOM_connection_remove_tasks(c);
1472 if (ret == zoom_complete)
1474 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1475 "task removed (complete)", c);
1476 ZOOM_connection_remove_task(c);
1479 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1486 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri)
1488 Z_GDU *gdu = z_get_HTTP_Request_uri(c->odr_out, uri, 0, c->proxy ? 1 : 0);
1490 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1491 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1493 yaz_cookies_request(c->cookies, c->odr_out, gdu->u.HTTP_Request);
1494 if (c->user && c->password)
1496 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1497 c->user, c->password);
1499 return ZOOM_send_GDU(c, gdu);
1502 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu)
1506 int r = z_GDU(c->odr_out, &gdu, 0, 0);
1508 return zoom_complete;
1510 z_GDU(c->odr_print, &gdu, 0, 0);
1512 z_GDU(c->odr_save, &gdu, 0, 0);
1513 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1514 odr_reset(c->odr_out);
1516 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1517 ZOOM_connection_put_event(c, event);
1519 return ZOOM_send_buf(c);
1523 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1524 const char *addinfo, const char *addinfo2)
1526 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1531 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1533 zoom_ret cret = zoom_complete;
1536 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1538 const char *location;
1540 ZOOM_connection_set_mask(c, 0);
1541 yaz_log(c->log_details, "%p handle_http", c);
1543 yaz_cookies_response(c->cookies, hres);
1544 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1545 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1548 if (c->no_redirects > 10)
1550 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1551 c->no_redirects = 0;
1552 ZOOM_connection_close(c);
1556 /* since redirect may change host we just reconnect. A smarter
1557 implementation might check whether it's the same server */
1558 if (*location != '/')
1561 do_connect_host(c, location);
1562 send_HTTP_redirect(c, location);
1565 { /* relative header - same host */
1567 char *nlocation = odr_malloc(c->odr_in, strlen(location)
1568 + strlen(c->host_port) + 3);
1569 strcpy(nlocation, c->host_port);
1570 cs_get_host_args(nlocation, (const char **) &args);
1571 if (!args || !*args)
1572 args = nlocation + strlen(nlocation);
1575 strcpy(args, location);
1576 send_HTTP_redirect(c, nlocation);
1583 ret = ZOOM_handle_sru(c, hres, &cret, &addinfo);
1586 if (c->no_redirects) /* end of redirect. change hosts again */
1587 ZOOM_connection_close(c);
1589 c->no_redirects = 0;
1593 if (hres->code != 200)
1594 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1597 yaz_log(YLOG_LOG, "set error... addinfo=%s", addinfo ?
1599 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1601 ZOOM_connection_close(c);
1603 if (cret == zoom_complete)
1605 yaz_log(c->log_details, "removing tasks in handle_http");
1606 ZOOM_connection_remove_task(c);
1610 if (!strcmp(hres->version, "1.0"))
1612 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1613 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1618 /* HTTP 1.1: only if no close we stay alive.. */
1619 if (connection_head && !strcmp(connection_head, "close"))
1624 ZOOM_connection_close(c);
1627 c->tasks->running = 0;
1628 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1629 c->reconnect_ok = 0;
1633 c->reconnect_ok = 1; /* if the server closes anyway */
1638 static int do_read(ZOOM_connection c)
1643 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1644 ZOOM_connection_put_event(c, event);
1646 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1647 more = cs_more(c->cs);
1648 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1653 if (!ZOOM_test_reconnect(c))
1655 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1656 ZOOM_connection_close(c);
1664 odr_reset(c->odr_in);
1665 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1666 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1667 ZOOM_connection_put_event(c, event);
1669 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1672 int err = odr_geterrorx(c->odr_in, &x);
1674 const char *element = odr_getelement(c->odr_in);
1675 yaz_snprintf(msg, sizeof(msg),
1676 "ODR code %d:%d element=%s offset=%d",
1677 err, x, element ? element : "<unknown>",
1678 odr_offset(c->odr_in));
1679 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1682 FILE *ber_file = yaz_log_file();
1684 odr_dumpBER(ber_file, c->buf_in, r);
1686 ZOOM_connection_close(c);
1691 z_GDU(c->odr_print, &gdu, 0, 0);
1693 z_GDU(c->odr_save, &gdu, 0, 0);
1694 if (gdu->which == Z_GDU_Z3950)
1695 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1696 else if (gdu->which == Z_GDU_HTTP_Response)
1699 handle_http(c, gdu->u.HTTP_Response);
1701 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1702 ZOOM_connection_close(c);
1710 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1715 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1716 ZOOM_connection_put_event(c, event);
1718 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1719 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1721 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1722 if (ZOOM_test_reconnect(c))
1724 return zoom_pending;
1726 if (c->state == STATE_CONNECTING)
1727 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1729 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1730 ZOOM_connection_close(c);
1731 return zoom_complete;
1735 int mask = ZOOM_SELECT_EXCEPT;
1736 if (c->cs->io_pending & CS_WANT_WRITE)
1737 mask += ZOOM_SELECT_WRITE;
1738 if (c->cs->io_pending & CS_WANT_READ)
1739 mask += ZOOM_SELECT_READ;
1740 ZOOM_connection_set_mask(c, mask);
1741 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1746 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1747 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1750 return zoom_pending;
1753 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1755 return do_write_ex(c, c->buf_out, c->len_out);
1759 ZOOM_API(const char *)
1760 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1762 if (!strcmp(key, "APDU"))
1764 return c->saveAPDU_wrbuf ? wrbuf_cstr(c->saveAPDU_wrbuf) : "";
1767 return ZOOM_options_get(c->options, key);
1770 ZOOM_API(const char *)
1771 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1773 if (!strcmp(key, "APDU"))
1775 if (c->saveAPDU_wrbuf)
1777 *lenp = wrbuf_len(c->saveAPDU_wrbuf);
1778 return wrbuf_cstr(c->saveAPDU_wrbuf);
1787 return ZOOM_options_getl(c->options, key, lenp);
1791 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1794 if (!strcmp(key, "saveAPDU"))
1796 if (val && strcmp(val, "0"))
1798 if (!c->saveAPDU_wrbuf)
1799 c->saveAPDU_wrbuf = wrbuf_alloc();
1801 wrbuf_rewind(c->saveAPDU_wrbuf);
1805 wrbuf_destroy(c->saveAPDU_wrbuf);
1806 c->saveAPDU_wrbuf = 0;
1808 ZOOM_connection_save_apdu_wrbuf(c, c->saveAPDU_wrbuf);
1811 ZOOM_options_set(c->options, key, val);
1815 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1816 const char *val, int len)
1818 ZOOM_options_setl(c->options, key, val, len);
1821 ZOOM_API(const char *)
1822 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1824 return ZOOM_options_get(r->options, key);
1828 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1831 ZOOM_options_set(r->options, key, val);
1836 ZOOM_connection_errcode(ZOOM_connection c)
1838 return ZOOM_connection_error(c, 0, 0);
1841 ZOOM_API(const char *)
1842 ZOOM_connection_errmsg(ZOOM_connection c)
1845 ZOOM_connection_error(c, &msg, 0);
1849 ZOOM_API(const char *)
1850 ZOOM_connection_addinfo(ZOOM_connection c)
1852 const char *addinfo;
1853 ZOOM_connection_error(c, 0, &addinfo);
1857 ZOOM_API(const char *)
1858 ZOOM_connection_diagset(ZOOM_connection c)
1860 const char *diagset;
1861 ZOOM_connection_error_x(c, 0, 0, &diagset);
1865 ZOOM_API(const char *)
1866 ZOOM_diag_str(int error)
1870 case ZOOM_ERROR_NONE:
1872 case ZOOM_ERROR_CONNECT:
1873 return "Connect failed";
1874 case ZOOM_ERROR_MEMORY:
1875 return "Out of memory";
1876 case ZOOM_ERROR_ENCODE:
1877 return "Encoding failed";
1878 case ZOOM_ERROR_DECODE:
1879 return "Decoding failed";
1880 case ZOOM_ERROR_CONNECTION_LOST:
1881 return "Connection lost";
1882 case ZOOM_ERROR_INIT:
1883 return "Init rejected";
1884 case ZOOM_ERROR_INTERNAL:
1885 return "Internal failure";
1886 case ZOOM_ERROR_TIMEOUT:
1888 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1889 return "Unsupported protocol";
1890 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1891 return "Unsupported query type";
1892 case ZOOM_ERROR_INVALID_QUERY:
1893 return "Invalid query";
1894 case ZOOM_ERROR_CQL_PARSE:
1895 return "CQL parsing error";
1896 case ZOOM_ERROR_CQL_TRANSFORM:
1897 return "CQL transformation error";
1898 case ZOOM_ERROR_CCL_CONFIG:
1899 return "CCL configuration error";
1900 case ZOOM_ERROR_CCL_PARSE:
1901 return "CCL parsing error";
1902 case ZOOM_ERROR_ES_INVALID_ACTION:
1903 return "Extended Service. invalid action";
1904 case ZOOM_ERROR_ES_INVALID_VERSION:
1905 return "Extended Service. invalid version";
1906 case ZOOM_ERROR_ES_INVALID_SYNTAX:
1907 return "Extended Service. invalid syntax";
1909 return diagbib1_str(error);
1914 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1915 const char **addinfo, const char **diagset)
1917 int error = c->error;
1920 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1921 *cp = ZOOM_diag_str(error);
1922 else if (!strcmp(c->diagset, "HTTP"))
1923 *cp = z_HTTP_errmsg(c->error);
1924 else if (!strcmp(c->diagset, "Bib-1"))
1925 *cp = ZOOM_diag_str(error);
1926 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1927 *cp = yaz_diag_srw_str(c->error);
1929 *cp = "Unknown error and diagnostic set";
1932 *addinfo = c->addinfo ? c->addinfo : "";
1934 *diagset = c->diagset ? c->diagset : "";
1939 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1940 const char **addinfo)
1942 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1945 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1947 ZOOM_Event event = 0;
1948 int r = cs_look(c->cs);
1949 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1954 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1955 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1956 ZOOM_connection_close(c);
1957 ZOOM_connection_put_event(c, event);
1959 else if (r == CS_CONNECT)
1961 int ret = ret = cs_rcvconnect(c->cs);
1962 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
1963 "cs_rcvconnect returned %d", c, ret);
1966 int mask = ZOOM_SELECT_EXCEPT;
1967 if (c->cs->io_pending & CS_WANT_WRITE)
1968 mask += ZOOM_SELECT_WRITE;
1969 if (c->cs->io_pending & CS_WANT_READ)
1970 mask += ZOOM_SELECT_READ;
1971 ZOOM_connection_set_mask(c, mask);
1972 event = ZOOM_Event_create(ZOOM_EVENT_NONE);
1973 ZOOM_connection_put_event(c, event);
1977 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1978 ZOOM_connection_put_event(c, event);
1980 if (c->proto == PROTO_Z3950)
1981 ZOOM_connection_Z3950_send_init(c);
1984 /* no init request for SRW .. */
1985 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1986 ZOOM_connection_remove_task(c);
1987 ZOOM_connection_set_mask(c, 0);
1988 ZOOM_connection_exec_task(c);
1990 c->state = STATE_ESTABLISHED;
1994 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1995 ZOOM_connection_close(c);
2000 if (mask & ZOOM_SELECT_EXCEPT)
2002 if (!ZOOM_test_reconnect(c))
2004 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
2005 ZOOM_connection_close(c);
2009 if (mask & ZOOM_SELECT_READ)
2011 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2017 ZOOM_connection_last_event(ZOOM_connection cs)
2020 return ZOOM_EVENT_NONE;
2021 return cs->last_event;
2025 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2029 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2030 /* timeout and this connection was waiting */
2031 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2032 ZOOM_connection_close(c);
2033 ZOOM_connection_put_event(c, event);
2039 ZOOM_connection_process(ZOOM_connection c)
2045 event = ZOOM_connection_get_event(c);
2048 ZOOM_Event_destroy(event);
2051 ZOOM_connection_exec_task(c);
2052 event = ZOOM_connection_get_event(c);
2055 ZOOM_Event_destroy(event);
2062 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2066 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2068 for (i = 0; i<no; i++)
2070 ZOOM_connection c = cs[i];
2072 if (c && ZOOM_connection_process(c))
2078 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2080 if (c->mask && mask)
2081 ZOOM_connection_do_io(c, mask);
2085 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2088 return cs_fileno(c->cs);
2092 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2100 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2107 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2109 return ZOOM_options_get_int(c->options, "timeout", 30);
2112 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2117 ZOOM_connection_set_mask(c, 0);
2118 c->state = STATE_IDLE;
2124 * c-file-style: "Stroustrup"
2125 * indent-tabs-mode: nil
2127 * vim: shiftwidth=4 tabstop=8 expandtab