1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2010 Index Data
3 * See the file LICENSE for details.
7 * \brief Implements ZOOM C interface.
15 #include <yaz/yaz-util.h>
16 #include <yaz/xmalloc.h>
17 #include <yaz/otherinfo.h>
19 #include <yaz/diagbib1.h>
20 #include <yaz/charneg.h>
21 #include <yaz/query-charset.h>
22 #include <yaz/snprintf.h>
23 #include <yaz/facet.h>
25 #include <yaz/shptr.h>
31 static int log_api0 = 0;
32 static int log_details0 = 0;
34 static void resultset_destroy(ZOOM_resultset r);
35 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
37 ZOOM_API(const char *) ZOOM_get_event_str(int event)
39 static const char *ar[] = {
55 static void initlog(void)
57 static int log_level_initialized = 0;
58 if (!log_level_initialized)
60 log_api0 = yaz_log_module_level("zoom");
61 log_details0 = yaz_log_module_level("zoomdetails");
62 log_level_initialized = 1;
66 ZOOM_Event ZOOM_Event_create(int kind)
68 ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
75 static void ZOOM_Event_destroy(ZOOM_Event event)
80 void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
84 c->m_queue_back->prev = event;
85 assert(c->m_queue_front);
89 assert(!c->m_queue_front);
90 c->m_queue_front = event;
92 event->next = c->m_queue_back;
94 c->m_queue_back = event;
97 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
99 ZOOM_Event event = c->m_queue_front;
102 c->last_event = ZOOM_EVENT_NONE;
105 assert(c->m_queue_back);
106 c->m_queue_front = event->prev;
107 if (c->m_queue_front)
109 assert(c->m_queue_back);
110 c->m_queue_front->next = 0;
114 c->last_event = event->kind;
118 static void ZOOM_connection_remove_events(ZOOM_connection c)
121 while ((event = ZOOM_connection_get_event(c)))
122 ZOOM_Event_destroy(event);
125 ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
127 ZOOM_Event event = c->m_queue_front;
129 return event ? event->kind : ZOOM_EVENT_NONE;
132 void ZOOM_connection_remove_tasks(ZOOM_connection c);
134 void ZOOM_set_dset_error(ZOOM_connection c, int error,
136 const char *addinfo, const char *addinfo2)
143 if (!c->diagset || strcmp(dset, c->diagset))
146 c->diagset = xstrdup(dset);
147 /* remove integer part from SRW diagset .. */
148 if ((cp = strrchr(c->diagset, '/')))
151 if (addinfo && addinfo2)
153 c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 2);
154 strcpy(c->addinfo, addinfo);
155 strcat(c->addinfo, addinfo2);
158 c->addinfo = xstrdup(addinfo);
159 if (error != ZOOM_ERROR_NONE)
161 yaz_log(c->log_api, "%p set_dset_error %s %s:%d %s %s",
162 c, c->host_port ? c->host_port : "<>", dset, error,
163 addinfo ? addinfo : "",
164 addinfo2 ? addinfo2 : "");
165 ZOOM_connection_remove_tasks(c);
169 int ZOOM_uri_to_code(const char *uri)
173 if ((cp = strrchr(uri, '/')))
180 void ZOOM_set_error(ZOOM_connection c, int error, const char *addinfo)
182 ZOOM_set_dset_error(c, error, "ZOOM", addinfo, 0);
185 static void clear_error(ZOOM_connection c)
188 * If an error is tied to an operation then it's ok to clear: for
189 * example, a diagnostic returned from a search is cleared by a
190 * subsequent search. However, problems such as Connection Lost
191 * or Init Refused are not cleared, because they are not
192 * recoverable: doing another search doesn't help.
195 ZOOM_connection_remove_events(c);
198 case ZOOM_ERROR_CONNECT:
199 case ZOOM_ERROR_MEMORY:
200 case ZOOM_ERROR_DECODE:
201 case ZOOM_ERROR_CONNECTION_LOST:
202 case ZOOM_ERROR_INIT:
203 case ZOOM_ERROR_INTERNAL:
204 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
207 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
211 void ZOOM_connection_show_task(ZOOM_task task)
215 case ZOOM_TASK_SEARCH:
216 yaz_log(YLOG_LOG, "search p=%p", task);
218 case ZOOM_TASK_RETRIEVE:
219 yaz_log(YLOG_LOG, "retrieve p=%p", task);
221 case ZOOM_TASK_CONNECT:
222 yaz_log(YLOG_LOG, "connect p=%p", task);
225 yaz_log(YLOG_LOG, "scan p=%p", task);
230 void ZOOM_connection_show_tasks(ZOOM_connection c)
233 yaz_log(YLOG_LOG, "connection p=%p tasks", c);
234 for (task = c->tasks; task; task = task->next)
235 ZOOM_connection_show_task(task);
238 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
240 ZOOM_task *taskp = &c->tasks;
242 taskp = &(*taskp)->next;
243 *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
244 (*taskp)->running = 0;
245 (*taskp)->which = which;
251 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
253 return c->tasks ? 0 : 1;
256 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
258 ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
260 task->next = c->tasks;
269 void ZOOM_connection_remove_task(ZOOM_connection c)
271 ZOOM_task task = c->tasks;
275 c->tasks = task->next;
278 case ZOOM_TASK_SEARCH:
279 resultset_destroy(task->u.search.resultset);
280 xfree(task->u.search.syntax);
281 xfree(task->u.search.elementSetName);
283 case ZOOM_TASK_RETRIEVE:
284 resultset_destroy(task->u.retrieve.resultset);
285 xfree(task->u.retrieve.syntax);
286 xfree(task->u.retrieve.elementSetName);
288 case ZOOM_TASK_CONNECT:
291 ZOOM_scanset_destroy(task->u.scan.scan);
293 case ZOOM_TASK_PACKAGE:
294 ZOOM_package_destroy(task->u.package);
297 resultset_destroy(task->u.sort.resultset);
298 ZOOM_query_destroy(task->u.sort.q);
307 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
308 ZOOM_connection_put_event(c, event);
313 void ZOOM_connection_remove_tasks(ZOOM_connection c)
316 ZOOM_connection_remove_task(c);
320 ZOOM_API(ZOOM_connection)
321 ZOOM_connection_create(ZOOM_options options)
323 ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
327 c->log_api = log_api0;
328 c->log_details = log_details0;
330 yaz_log(c->log_api, "%p ZOOM_connection_create", c);
332 c->proto = PROTO_Z3950;
334 ZOOM_connection_set_mask(c, 0);
336 c->state = STATE_IDLE;
339 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
346 c->options = ZOOM_options_create_with_parent(options);
352 c->charset = c->lang = 0;
363 c->maximum_record_size = 0;
364 c->preferred_message_size = 0;
366 c->odr_in = odr_createmem(ODR_DECODE);
367 c->odr_out = odr_createmem(ODR_ENCODE);
371 c->support_named_resultsets = 0;
372 c->last_event = ZOOM_EVENT_NONE;
374 c->m_queue_front = 0;
383 /* set database names. Take local databases (if set); otherwise
384 take databases given in ZURL (if set); otherwise use Default */
385 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
388 char **databaseNames;
389 const char *cp = ZOOM_options_get(options, "databaseName");
391 if ((!cp || !*cp) && con->host_port)
393 if (strncmp(con->host_port, "unix:", 5) == 0)
394 cp = strchr(con->host_port+5, ':');
396 cp = strchr(con->host_port, '/');
402 nmem_strsplit(odr_getmem(odr), "+", cp, &databaseNames, num);
403 return databaseNames;
406 ZOOM_API(ZOOM_connection)
407 ZOOM_connection_new(const char *host, int portnum)
409 ZOOM_connection c = ZOOM_connection_create(0);
411 ZOOM_connection_connect(c, host, portnum);
415 static zoom_sru_mode get_sru_mode_from_string(const char *s)
418 return zoom_sru_soap;
419 if (!yaz_matchstr(s, "soap"))
420 return zoom_sru_soap;
421 else if (!yaz_matchstr(s, "get"))
423 else if (!yaz_matchstr(s, "post"))
424 return zoom_sru_post;
425 return zoom_sru_error;
429 ZOOM_connection_connect(ZOOM_connection c,
430 const char *host, int portnum)
437 yaz_log(c->log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
438 c, host ? host : "null", portnum);
440 ZOOM_set_error(c, ZOOM_ERROR_NONE, 0);
441 ZOOM_connection_remove_tasks(c);
445 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
446 odr_destroy(c->odr_print);
448 if (ZOOM_options_get_bool(c->options, "apdulog", 0))
450 c->odr_print = odr_createmem(ODR_PRINT);
451 odr_setprint(c->odr_print, yaz_log_file());
458 yaz_log(c->log_details, "%p ZOOM_connection_connect reconnect ok", c);
462 yaz_log(c->log_details, "%p ZOOM_connection_connect connect", c);
465 val = ZOOM_options_get(c->options, "proxy");
468 yaz_log(c->log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
469 c->proxy = xstrdup(val);
474 val = ZOOM_options_get(c->options, "charset");
477 yaz_log(c->log_details, "%p ZOOM_connection_connect charset=%s", c, val);
478 c->charset = xstrdup(val);
482 val = ZOOM_options_get(c->options, "lang");
485 yaz_log(c->log_details, "%p ZOOM_connection_connect lang=%s", c, val);
486 c->lang = xstrdup(val);
497 sprintf(hostn, "%.80s:%d", host, portnum);
498 c->host_port = xstrdup(hostn);
501 c->host_port = xstrdup(host);
506 * If the "<scheme>:" part of the host string is preceded by one
507 * or more comma-separated <name>=<value> pairs, these are taken
508 * to be options to be set on the connection object. Among other
509 * applications, this facility can be used to embed authentication
511 * user=admin,password=secret,tcp:localhost:9999
513 char *remainder = c->host_port;
514 char *pcolon = strchr(remainder, ':');
517 while ((pcomma = strchr(remainder, ',')) != 0 &&
518 (pcolon == 0 || pcomma < pcolon)) {
520 if ((pequals = strchr(remainder, '=')) != 0) {
522 /*printf("# setting '%s'='%s'\n", remainder, pequals+1);*/
523 ZOOM_connection_option_set(c, remainder, pequals+1);
525 remainder = pcomma+1;
528 if (remainder != c->host_port) {
530 c->host_port = xstrdup(remainder);
531 /*printf("# reset hp='%s'\n", remainder);*/
535 val = ZOOM_options_get(c->options, "sru");
536 c->sru_mode = get_sru_mode_from_string(val);
538 xfree(c->sru_version);
539 val = ZOOM_options_get(c->options, "sru_version");
540 c->sru_version = xstrdup(val ? val : "1.2");
542 ZOOM_options_set(c->options, "host", c->host_port);
544 xfree(c->cookie_out);
546 val = ZOOM_options_get(c->options, "cookie");
549 yaz_log(c->log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
550 c->cookie_out = xstrdup(val);
555 val = ZOOM_options_get(c->options, "clientIP");
558 yaz_log(c->log_details, "%p ZOOM_connection_connect clientIP=%s",
560 c->client_IP = xstrdup(val);
565 val = ZOOM_options_get(c->options, "group");
567 c->group = xstrdup(val);
571 val = ZOOM_options_get(c->options, "user");
573 c->user = xstrdup(val);
577 val = ZOOM_options_get(c->options, "password");
579 val = ZOOM_options_get(c->options, "pass");
582 c->password = xstrdup(val);
584 c->maximum_record_size =
585 ZOOM_options_get_int(c->options, "maximumRecordSize", 1024*1024);
586 c->preferred_message_size =
587 ZOOM_options_get_int(c->options, "preferredMessageSize", 1024*1024);
589 c->async = ZOOM_options_get_bool(c->options, "async", 0);
590 yaz_log(c->log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
592 task = ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
596 while (ZOOM_event(1, &c))
601 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
603 #if ZOOM_RESULT_LISTS
607 /* remove ourselves from the resultsets in connection */
608 ZOOM_resultset *rp = &r->connection->resultsets;
611 assert(*rp); /* we must be in this list!! */
613 { /* OK, we're here - take us out of it */
625 ZOOM_connection_destroy(ZOOM_connection c)
627 #if ZOOM_RESULT_LISTS
628 ZOOM_resultsets list;
634 yaz_log(c->log_api, "%p ZOOM_connection_destroy", c);
638 #if ZOOM_RESULT_LISTS
639 // Remove the connection's usage of resultsets
640 list = c->resultsets;
642 ZOOM_resultsets removed = list;
643 ZOOM_resultset_destroy(list->resultset);
648 for (r = c->resultsets; r; r = r->next)
655 odr_destroy(c->odr_in);
656 odr_destroy(c->odr_out);
659 odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
660 odr_destroy(c->odr_print);
662 ZOOM_options_destroy(c->options);
663 ZOOM_connection_remove_tasks(c);
664 ZOOM_connection_remove_events(c);
670 xfree(c->cookie_out);
676 xfree(c->sru_version);
680 void ZOOM_resultset_addref(ZOOM_resultset r)
684 yaz_mutex_enter(r->mutex);
686 yaz_log(log_details0, "%p ZOOM_resultset_addref count=%d",
688 yaz_mutex_leave(r->mutex);
692 ZOOM_resultset ZOOM_resultset_create(void)
695 ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
699 yaz_log(log_details0, "%p ZOOM_resultset_create", r);
702 r->odr = odr_createmem(ODR_ENCODE);
707 for (i = 0; i<RECORD_HASH_SIZE; i++)
708 r->record_hash[i] = 0;
712 r->databaseNames = 0;
713 r->num_databaseNames = 0;
718 yaz_mutex_create(&r->mutex);
721 WRBUF w = wrbuf_alloc();
722 YAZ_SHPTR_INIT(r->record_wrbuf, w);
728 ZOOM_API(ZOOM_resultset)
729 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
732 ZOOM_query s = ZOOM_query_create();
734 ZOOM_query_prefix(s, q);
736 r = ZOOM_connection_search(c, s);
737 ZOOM_query_destroy(s);
741 ZOOM_API(ZOOM_resultset)
742 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
744 ZOOM_resultset r = ZOOM_resultset_create();
748 const char *syntax, *elementSetName;
749 #if ZOOM_RESULT_LISTS
753 yaz_log(c->log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
754 r->r_sort_spec = ZOOM_query_get_sortspec(q);
757 r->options = ZOOM_options_create_with_parent(c->options);
759 start = ZOOM_options_get_int(r->options, "start", 0);
760 count = ZOOM_options_get_int(r->options, "count", 0);
762 /* If "presentChunk" is defined use that; otherwise "step" */
763 const char *cp = ZOOM_options_get(r->options, "presentChunk");
764 r->step = ZOOM_options_get_int(r->options,
765 (cp != 0 ? "presentChunk": "step"), 0);
767 r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
768 cp = ZOOM_options_get(r->options, "setname");
770 r->setname = xstrdup(cp);
771 cp = ZOOM_options_get(r->options, "schema");
773 r->schema = xstrdup(cp);
775 r->databaseNames = ZOOM_connection_get_databases(c, c->options, &r->num_databaseNames,
780 #if ZOOM_RESULT_LISTS
781 yaz_log(log_details, "%p ZOOM_connection_search: Adding new resultset (%p) to resultsets (%p) ", c, r, c->resultsets);
782 set = xmalloc(sizeof(*set));
783 ZOOM_resultset_addref(r);
785 set->next = c->resultsets;
788 r->next = c->resultsets;
791 if (c->host_port && c->proto == PROTO_HTTP)
795 yaz_log(c->log_details, "ZOOM_connection_search: no comstack");
796 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
800 yaz_log(c->log_details, "ZOOM_connection_search: reconnect");
805 task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
806 task->u.search.resultset = r;
807 task->u.search.start = start;
808 task->u.search.count = count;
809 task->u.search.recv_search_fired = 0;
811 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
812 task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
813 elementSetName = ZOOM_options_get(r->options, "elementSetName");
814 task->u.search.elementSetName = elementSetName
815 ? xstrdup(elementSetName) : 0;
817 ZOOM_resultset_addref(r);
819 ZOOM_query_addref(q);
823 while (ZOOM_event(1, &c))
830 ZOOM_resultset_sort(ZOOM_resultset r,
831 const char *sort_type, const char *sort_spec)
833 (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
837 ZOOM_resultset_sort1(ZOOM_resultset r,
838 const char *sort_type, const char *sort_spec)
840 ZOOM_connection c = r->connection;
844 newq = ZOOM_query_create();
845 if (ZOOM_query_sortby(newq, sort_spec) < 0)
848 yaz_log(c->log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
849 r, r, sort_type, sort_spec);
853 if (c->host_port && c->proto == PROTO_HTTP)
857 yaz_log(c->log_details, "%p ZOOM_resultset_sort: no comstack", r);
858 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
862 yaz_log(c->log_details, "%p ZOOM_resultset_sort: prepare reconnect",
868 ZOOM_resultset_cache_reset(r);
869 task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
870 task->u.sort.resultset = r;
871 task->u.sort.q = newq;
873 ZOOM_resultset_addref(r);
877 while (ZOOM_event(1, &c))
885 ZOOM_resultset_destroy(ZOOM_resultset r)
887 resultset_destroy(r);
890 static void resultset_destroy(ZOOM_resultset r)
894 yaz_mutex_enter(r->mutex);
896 yaz_log(log_details0, "%p ZOOM_resultset_destroy r=%p count=%d",
898 if (r->refcount == 0)
900 yaz_mutex_leave(r->mutex);
902 yaz_log(log_details0, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
903 ZOOM_resultset_cache_reset(r);
904 ZOOM_resultset_release(r);
905 ZOOM_query_destroy(r->query);
906 ZOOM_options_destroy(r->options);
910 yaz_mutex_destroy(&r->mutex);
912 YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
917 yaz_mutex_leave(r->mutex);
921 ZOOM_resultset_size(ZOOM_resultset r)
926 int ZOOM_test_reconnect(ZOOM_connection c)
930 if (!c->reconnect_ok)
932 ZOOM_connection_close(c);
934 c->tasks->running = 0;
935 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
937 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
938 ZOOM_connection_put_event(c, event);
943 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
944 int force_sync, int start, int count)
949 const char *syntax, *elementSetName;
953 yaz_log(log_details0, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
954 " count=%d", r, force_sync, start, count);
959 if (c->host_port && c->proto == PROTO_HTTP)
963 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: no comstack", r);
964 ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
968 yaz_log(log_details0, "%p ZOOM_resultset_retrieve: prepare "
973 task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
974 task->u.retrieve.resultset = r;
975 task->u.retrieve.start = start;
976 task->u.retrieve.count = count;
978 syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
979 task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
980 elementSetName = ZOOM_options_get(r->options, "elementSetName");
981 task->u.retrieve.elementSetName = elementSetName
982 ? xstrdup(elementSetName) : 0;
984 cp = ZOOM_options_get(r->options, "schema");
987 if (!r->schema || strcmp(r->schema, cp))
990 r->schema = xstrdup(cp);
994 ZOOM_resultset_addref(r);
996 if (!r->connection->async || force_sync)
997 while (r->connection && ZOOM_event(1, &r->connection))
1002 ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
1003 size_t start, size_t count)
1005 int force_present = 0;
1009 yaz_log(log_api0, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
1010 r, r, (long) start, (long) count);
1013 ZOOM_resultset_retrieve(r, force_present, start, count);
1017 for (i = 0; i< count; i++)
1018 recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1023 ZOOM_resultset_facets_size(ZOOM_resultset r) {
1024 return r->num_facets;
1027 ZOOM_API(ZOOM_facet_field)
1028 ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name) {
1029 int num = r->num_facets;
1030 ZOOM_facet_field *facets = r->facets;
1032 for (index = 0; index < num; index++) {
1033 if (!strcmp(facets[index]->facet_name, name)) {
1034 return facets[index];
1041 ZOOM_API(ZOOM_facet_field *)
1042 ZOOM_resultset_facets(ZOOM_resultset r)
1047 ZOOM_API(const char**)
1048 ZOOM_resultset_facet_names(ZOOM_resultset r)
1050 return (const char **) r->facets_names;
1053 ZOOM_API(const char*)
1054 ZOOM_facet_field_name(ZOOM_facet_field field)
1056 return field->facet_name;
1060 ZOOM_facet_field_term_count(ZOOM_facet_field field)
1062 return field->num_terms;
1065 ZOOM_API(const char*)
1066 ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1067 *freq = field->facet_terms[idx].frequency;
1068 return field->facet_terms[idx].term;
1072 static void get_cert(ZOOM_connection c)
1077 if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1079 ZOOM_connection_option_setl(c, "sslPeerCert",
1080 cert_buf, cert_len);
1085 static zoom_ret do_connect_host(ZOOM_connection c,
1086 const char *effective_host,
1087 const char *logical_url);
1089 static zoom_ret do_connect(ZOOM_connection c)
1091 const char *effective_host;
1094 effective_host = c->proxy;
1096 effective_host = c->host_port;
1097 return do_connect_host(c, effective_host, c->host_port);
1100 static zoom_ret do_connect_host(ZOOM_connection c, const char *effective_host,
1101 const char *logical_url)
1105 yaz_log(c->log_details, "%p do_connect effective_host=%s", c, effective_host);
1109 c->cs = cs_create_host(effective_host, 0, &add);
1111 if (c->cs && c->cs->protocol == PROTO_HTTP)
1118 c->proto = PROTO_HTTP;
1119 cs_get_host_args(logical_url, &db);
1122 c->path = xmalloc(strlen(db) * 3 + 2);
1123 yaz_encode_sru_dbpath_buf(c->path, db);
1126 ZOOM_set_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1127 ZOOM_connection_close(c);
1128 return zoom_complete;
1133 int ret = cs_connect(c->cs, add);
1136 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1137 ZOOM_connection_put_event(c, event);
1139 if (c->proto == PROTO_Z3950)
1140 ZOOM_connection_Z3950_send_init(c);
1143 /* no init request for SRW .. */
1144 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1145 ZOOM_connection_remove_task(c);
1146 ZOOM_connection_set_mask(c, 0);
1147 ZOOM_connection_exec_task(c);
1149 c->state = STATE_ESTABLISHED;
1150 return zoom_pending;
1154 int mask = ZOOM_SELECT_EXCEPT;
1155 if (c->cs->io_pending & CS_WANT_WRITE)
1156 mask += ZOOM_SELECT_WRITE;
1157 if (c->cs->io_pending & CS_WANT_READ)
1158 mask += ZOOM_SELECT_READ;
1159 ZOOM_connection_set_mask(c, mask);
1160 c->state = STATE_CONNECTING;
1161 return zoom_pending;
1164 c->state = STATE_IDLE;
1165 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, logical_url);
1166 return zoom_complete;
1169 /* returns 1 if PDU was sent OK (still pending )
1170 0 if PDU was not sent OK (nothing to wait for)
1173 ZOOM_API(ZOOM_record)
1174 ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1176 const char *syntax =
1177 ZOOM_options_get(s->options, "preferredRecordSyntax");
1178 const char *elementSetName =
1179 ZOOM_options_get(s->options, "elementSetName");
1181 return ZOOM_record_cache_lookup(s, pos, syntax, elementSetName);
1184 ZOOM_API(ZOOM_record)
1185 ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1187 ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1192 * MIKE: I think force_sync should always be zero, but I don't
1193 * want to make this change until I get the go-ahead from
1194 * Adam, in case something depends on the old synchronous
1198 if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1199 ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1200 rec = ZOOM_resultset_record_immediate(r, pos);
1205 ZOOM_API(ZOOM_scanset)
1206 ZOOM_connection_scan(ZOOM_connection c, const char *start)
1209 ZOOM_query q = ZOOM_query_create();
1211 ZOOM_query_prefix(q, start);
1213 s = ZOOM_connection_scan1(c, q);
1214 ZOOM_query_destroy(q);
1219 ZOOM_API(ZOOM_scanset)
1220 ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
1222 ZOOM_scanset scan = 0;
1223 Z_Query *z_query = ZOOM_query_get_Z_Query(q);
1227 scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
1228 scan->connection = c;
1229 scan->odr = odr_createmem(ODR_DECODE);
1230 scan->options = ZOOM_options_create_with_parent(c->options);
1232 scan->scan_response = 0;
1233 scan->srw_scan_response = 0;
1236 ZOOM_query_addref(q);
1237 scan->databaseNames = ZOOM_connection_get_databases(c, c->options,
1238 &scan->num_databaseNames,
1243 ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
1244 task->u.scan.scan = scan;
1249 while (ZOOM_event(1, &c))
1257 ZOOM_scanset_destroy(ZOOM_scanset scan)
1262 if (scan->refcount == 0)
1264 ZOOM_query_destroy(scan->query);
1266 odr_destroy(scan->odr);
1268 ZOOM_options_destroy(scan->options);
1273 static zoom_ret send_package(ZOOM_connection c)
1277 yaz_log(c->log_details, "%p send_package", c);
1279 return zoom_complete;
1280 assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1282 event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1283 ZOOM_connection_put_event(c, event);
1285 c->buf_out = c->tasks->u.package->buf_out;
1286 c->len_out = c->tasks->u.package->len_out;
1288 return ZOOM_send_buf(c);
1292 ZOOM_scanset_size(ZOOM_scanset scan)
1297 if (scan->scan_response && scan->scan_response->entries)
1298 return scan->scan_response->entries->num_entries;
1299 else if (scan->srw_scan_response)
1300 return scan->srw_scan_response->num_terms;
1304 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
1306 const char **value_term, size_t *value_len,
1307 const char **disp_term, size_t *disp_len)
1309 size_t noent = ZOOM_scanset_size(scan);
1320 if (scan->scan_response)
1322 Z_ScanResponse *res = scan->scan_response;
1323 if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1325 Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1327 *value_term = (const char *) t->term->u.general->buf;
1328 *value_len = t->term->u.general->len;
1331 *disp_term = t->displayTerm;
1332 *disp_len = strlen(*disp_term);
1334 else if (t->term->which == Z_Term_general)
1336 *disp_term = (const char *) t->term->u.general->buf;
1337 *disp_len = t->term->u.general->len;
1339 *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1342 if (scan->srw_scan_response)
1344 Z_SRW_scanResponse *res = scan->srw_scan_response;
1345 Z_SRW_scanTerm *t = res->terms + pos;
1348 *value_term = t->value;
1349 *value_len = strlen(*value_term);
1352 *disp_term = t->displayTerm;
1354 *disp_term = t->value;
1355 *disp_len = strlen(*disp_term);
1356 *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
1361 ZOOM_API(const char *)
1362 ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
1363 size_t *occ, size_t *len)
1365 const char *value_term = 0;
1366 size_t value_len = 0;
1367 const char *disp_term = 0;
1368 size_t disp_len = 0;
1370 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1371 &disp_term, &disp_len);
1377 ZOOM_API(const char *)
1378 ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
1379 size_t *occ, size_t *len)
1381 const char *value_term = 0;
1382 size_t value_len = 0;
1383 const char *disp_term = 0;
1384 size_t disp_len = 0;
1386 ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
1387 &disp_term, &disp_len);
1393 ZOOM_API(const char *)
1394 ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
1396 return ZOOM_options_get(scan->options, key);
1400 ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
1403 ZOOM_options_set(scan->options, key, val);
1407 ZOOM_API(ZOOM_package)
1408 ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
1410 ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
1413 p->odr_out = odr_createmem(ODR_ENCODE);
1414 p->options = ZOOM_options_create_with_parent2(options, c->options);
1422 ZOOM_package_destroy(ZOOM_package p)
1427 if (p->refcount == 0)
1429 odr_destroy(p->odr_out);
1432 ZOOM_options_destroy(p->options);
1437 ZOOM_API(const char *)
1438 ZOOM_package_option_get(ZOOM_package p, const char *key)
1440 return ZOOM_options_get(p->options, key);
1443 ZOOM_API(const char *)
1444 ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
1446 return ZOOM_options_getl(p->options, key, lenp);
1450 ZOOM_package_option_set(ZOOM_package p, const char *key,
1453 ZOOM_options_set(p->options, key, val);
1457 ZOOM_package_option_setl(ZOOM_package p, const char *key,
1458 const char *val, int len)
1460 ZOOM_options_setl(p->options, key, val, len);
1464 ZOOM_connection_exec_task(ZOOM_connection c)
1466 ZOOM_task task = c->tasks;
1467 zoom_ret ret = zoom_complete;
1471 yaz_log(c->log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
1472 c, task->which, task->running);
1473 if (c->error != ZOOM_ERROR_NONE)
1475 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1476 "removing tasks because of error = %d", c, c->error);
1477 ZOOM_connection_remove_tasks(c);
1482 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1483 "task already running", c);
1487 ret = zoom_complete;
1488 if (c->cs || task->which == ZOOM_TASK_CONNECT)
1490 switch (task->which)
1492 case ZOOM_TASK_SEARCH:
1493 if (c->proto == PROTO_HTTP)
1494 ret = ZOOM_connection_srw_send_search(c);
1496 ret = ZOOM_connection_Z3950_send_search(c);
1498 case ZOOM_TASK_RETRIEVE:
1499 if (c->proto == PROTO_HTTP)
1500 ret = ZOOM_connection_srw_send_search(c);
1502 ret = send_Z3950_present(c);
1504 case ZOOM_TASK_CONNECT:
1505 ret = do_connect(c);
1507 case ZOOM_TASK_SCAN:
1508 if (c->proto == PROTO_HTTP)
1509 ret = ZOOM_connection_srw_send_scan(c);
1511 ret = ZOOM_connection_Z3950_send_scan(c);
1513 case ZOOM_TASK_PACKAGE:
1514 ret = send_package(c);
1516 case ZOOM_TASK_SORT:
1517 c->tasks->u.sort.resultset->r_sort_spec =
1518 ZOOM_query_get_sortspec(c->tasks->u.sort.q);
1519 ret = send_Z3950_sort(c, c->tasks->u.sort.resultset);
1525 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1526 "remove tasks because no connection exist", c);
1527 ZOOM_connection_remove_tasks(c);
1529 if (ret == zoom_complete)
1531 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1532 "task removed (complete)", c);
1533 ZOOM_connection_remove_task(c);
1536 yaz_log(c->log_details, "%p ZOOM_connection_exec_task "
1542 static Z_GDU *get_HTTP_Request_url(ODR odr, const char *url)
1544 Z_GDU *p = z_get_HTTP_Request(odr);
1545 const char *host = url;
1546 const char *cp0 = strstr(host, "://");
1547 const char *cp1 = 0;
1553 cp1 = strchr(cp0, '/');
1555 cp1 = cp0 + strlen(cp0);
1559 char *h = (char*) odr_malloc(odr, cp1 - cp0 + 1);
1560 memcpy (h, cp0, cp1 - cp0);
1562 z_HTTP_header_add(odr, &p->u.HTTP_Request->headers, "Host", h);
1564 p->u.HTTP_Request->path = odr_strdup(odr, *cp1 ? cp1 : "/");
1568 static zoom_ret send_HTTP_redirect(ZOOM_connection c, const char *uri,
1569 Z_HTTP_Response *cookie_hres)
1571 struct Z_HTTP_Header *h;
1572 Z_GDU *gdu = get_HTTP_Request_url(c->odr_out, uri);
1573 char *combined_cookies;
1574 int combined_cookies_len = 0;
1576 gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
1577 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
1580 for (h = cookie_hres->headers; h; h = h->next)
1582 if (!strcmp(h->name, "Set-Cookie"))
1586 if (!(cp = strchr(h->value, ';')))
1587 cp = h->value + strlen(h->value);
1588 if (cp - h->value >= 1) {
1589 combined_cookies = xrealloc(combined_cookies, combined_cookies_len + cp - h->value + 3);
1590 memcpy(combined_cookies+combined_cookies_len, h->value, cp - h->value);
1591 combined_cookies[combined_cookies_len + cp - h->value] = '\0';
1592 strcat(combined_cookies,"; ");
1593 combined_cookies_len = strlen(combined_cookies);
1598 if (combined_cookies_len)
1600 z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers,
1601 "Cookie", combined_cookies);
1602 xfree(combined_cookies);
1605 if (c->user && c->password)
1607 z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
1608 c->user, c->password);
1610 if (!z_GDU(c->odr_out, &gdu, 0, 0))
1611 return zoom_complete;
1613 z_GDU(c->odr_print, &gdu, 0, 0);
1614 c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1616 odr_reset(c->odr_out);
1617 return ZOOM_send_buf(c);
1621 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
1622 const char *addinfo, const char *addinfo2)
1624 ZOOM_set_dset_error(c, error, "HTTP", addinfo, addinfo2);
1629 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
1631 zoom_ret cret = zoom_complete;
1633 const char *addinfo = 0;
1634 const char *connection_head = z_HTTP_header_lookup(hres->headers,
1636 const char *location;
1638 ZOOM_connection_set_mask(c, 0);
1639 yaz_log(c->log_details, "%p handle_http", c);
1641 if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
1642 && (location = z_HTTP_header_lookup(hres->headers, "Location")))
1645 if (c->no_redirects > 10)
1647 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1648 c->no_redirects = 0;
1649 ZOOM_connection_close(c);
1653 /* since redirect may change host we just reconnect. A smarter
1654 implementation might check whether it's the same server */
1655 do_connect_host(c, location, 0);
1656 send_HTTP_redirect(c, location, hres);
1657 /* we're OK for now. Operation is not really complete */
1659 cret = zoom_pending;
1664 ret = ZOOM_handle_sru(c, hres, &cret);
1667 if (c->no_redirects) /* end of redirect. change hosts again */
1668 ZOOM_connection_close(c);
1670 c->no_redirects = 0;
1674 if (hres->code != 200)
1675 ZOOM_set_HTTP_error(c, hres->code, 0, 0);
1677 ZOOM_set_error(c, ZOOM_ERROR_DECODE, addinfo);
1678 ZOOM_connection_close(c);
1680 if (cret == zoom_complete)
1682 yaz_log(YLOG_LOG, "removing tasks in handle_http");
1683 ZOOM_connection_remove_task(c);
1687 if (!strcmp(hres->version, "1.0"))
1689 /* HTTP 1.0: only if Keep-Alive we stay alive.. */
1690 if (!connection_head || strcmp(connection_head, "Keep-Alive"))
1695 /* HTTP 1.1: only if no close we stay alive.. */
1696 if (connection_head && !strcmp(connection_head, "close"))
1701 ZOOM_connection_close(c);
1704 c->tasks->running = 0;
1705 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1706 c->reconnect_ok = 0;
1713 static int do_read(ZOOM_connection c)
1718 event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
1719 ZOOM_connection_put_event(c, event);
1721 r = cs_get(c->cs, &c->buf_in, &c->len_in);
1722 more = cs_more(c->cs);
1723 yaz_log(c->log_details, "%p do_read len=%d more=%d", c, r, more);
1728 if (!ZOOM_test_reconnect(c))
1730 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1731 ZOOM_connection_close(c);
1739 odr_reset(c->odr_in);
1740 odr_setbuf(c->odr_in, c->buf_in, r, 0);
1741 event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
1742 ZOOM_connection_put_event(c, event);
1744 if (!z_GDU(c->odr_in, &gdu, 0, 0))
1747 int err = odr_geterrorx(c->odr_in, &x);
1749 const char *element = odr_getelement(c->odr_in);
1750 yaz_snprintf(msg, sizeof(msg),
1751 "ODR code %d:%d element=%s offset=%d",
1752 err, x, element ? element : "<unknown>",
1753 odr_offset(c->odr_in));
1754 ZOOM_set_error(c, ZOOM_ERROR_DECODE, msg);
1757 FILE *ber_file = yaz_log_file();
1759 odr_dumpBER(ber_file, c->buf_in, r);
1761 ZOOM_connection_close(c);
1766 z_GDU(c->odr_print, &gdu, 0, 0);
1767 if (gdu->which == Z_GDU_Z3950)
1768 ZOOM_handle_Z3950_apdu(c, gdu->u.z3950);
1769 else if (gdu->which == Z_GDU_HTTP_Response)
1772 handle_http(c, gdu->u.HTTP_Response);
1774 ZOOM_set_error(c, ZOOM_ERROR_DECODE, 0);
1775 ZOOM_connection_close(c);
1779 c->reconnect_ok = 0;
1784 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
1789 event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
1790 ZOOM_connection_put_event(c, event);
1792 yaz_log(c->log_details, "%p do_write_ex len=%d", c, len_out);
1793 if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
1795 yaz_log(c->log_details, "%p do_write_ex write failed", c);
1796 if (ZOOM_test_reconnect(c))
1798 return zoom_pending;
1800 if (c->state == STATE_CONNECTING)
1801 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1803 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
1804 ZOOM_connection_close(c);
1805 return zoom_complete;
1809 int mask = ZOOM_SELECT_EXCEPT;
1810 if (c->cs->io_pending & CS_WANT_WRITE)
1811 mask += ZOOM_SELECT_WRITE;
1812 if (c->cs->io_pending & CS_WANT_READ)
1813 mask += ZOOM_SELECT_READ;
1814 ZOOM_connection_set_mask(c, mask);
1815 yaz_log(c->log_details, "%p do_write_ex write incomplete mask=%d",
1820 ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
1821 yaz_log(c->log_details, "%p do_write_ex write complete mask=%d",
1824 return zoom_pending;
1827 zoom_ret ZOOM_send_buf(ZOOM_connection c)
1829 return do_write_ex(c, c->buf_out, c->len_out);
1833 ZOOM_API(const char *)
1834 ZOOM_connection_option_get(ZOOM_connection c, const char *key)
1836 return ZOOM_options_get(c->options, key);
1839 ZOOM_API(const char *)
1840 ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
1842 return ZOOM_options_getl(c->options, key, lenp);
1846 ZOOM_connection_option_set(ZOOM_connection c, const char *key,
1849 ZOOM_options_set(c->options, key, val);
1853 ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
1854 const char *val, int len)
1856 ZOOM_options_setl(c->options, key, val, len);
1859 ZOOM_API(const char *)
1860 ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
1862 return ZOOM_options_get(r->options, key);
1866 ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
1869 ZOOM_options_set(r->options, key, val);
1874 ZOOM_connection_errcode(ZOOM_connection c)
1876 return ZOOM_connection_error(c, 0, 0);
1879 ZOOM_API(const char *)
1880 ZOOM_connection_errmsg(ZOOM_connection c)
1883 ZOOM_connection_error(c, &msg, 0);
1887 ZOOM_API(const char *)
1888 ZOOM_connection_addinfo(ZOOM_connection c)
1890 const char *addinfo;
1891 ZOOM_connection_error(c, 0, &addinfo);
1895 ZOOM_API(const char *)
1896 ZOOM_connection_diagset(ZOOM_connection c)
1898 const char *diagset;
1899 ZOOM_connection_error_x(c, 0, 0, &diagset);
1903 ZOOM_API(const char *)
1904 ZOOM_diag_str(int error)
1908 case ZOOM_ERROR_NONE:
1910 case ZOOM_ERROR_CONNECT:
1911 return "Connect failed";
1912 case ZOOM_ERROR_MEMORY:
1913 return "Out of memory";
1914 case ZOOM_ERROR_ENCODE:
1915 return "Encoding failed";
1916 case ZOOM_ERROR_DECODE:
1917 return "Decoding failed";
1918 case ZOOM_ERROR_CONNECTION_LOST:
1919 return "Connection lost";
1920 case ZOOM_ERROR_INIT:
1921 return "Init rejected";
1922 case ZOOM_ERROR_INTERNAL:
1923 return "Internal failure";
1924 case ZOOM_ERROR_TIMEOUT:
1926 case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
1927 return "Unsupported protocol";
1928 case ZOOM_ERROR_UNSUPPORTED_QUERY:
1929 return "Unsupported query type";
1930 case ZOOM_ERROR_INVALID_QUERY:
1931 return "Invalid query";
1932 case ZOOM_ERROR_CQL_PARSE:
1933 return "CQL parsing error";
1934 case ZOOM_ERROR_CQL_TRANSFORM:
1935 return "CQL transformation error";
1936 case ZOOM_ERROR_CCL_CONFIG:
1937 return "CCL configuration error";
1938 case ZOOM_ERROR_CCL_PARSE:
1939 return "CCL parsing error";
1941 return diagbib1_str(error);
1946 ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
1947 const char **addinfo, const char **diagset)
1949 int error = c->error;
1952 if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
1953 *cp = ZOOM_diag_str(error);
1954 else if (!strcmp(c->diagset, "HTTP"))
1955 *cp = z_HTTP_errmsg(c->error);
1956 else if (!strcmp(c->diagset, "Bib-1"))
1957 *cp = ZOOM_diag_str(error);
1958 else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
1959 *cp = yaz_diag_srw_str(c->error);
1961 *cp = "Unknown error and diagnostic set";
1964 *addinfo = c->addinfo ? c->addinfo : "";
1966 *diagset = c->diagset ? c->diagset : "";
1971 ZOOM_connection_error(ZOOM_connection c, const char **cp,
1972 const char **addinfo)
1974 return ZOOM_connection_error_x(c, cp, addinfo, 0);
1977 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
1979 ZOOM_Event event = 0;
1980 int r = cs_look(c->cs);
1981 yaz_log(c->log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
1986 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1987 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1988 ZOOM_connection_close(c);
1989 ZOOM_connection_put_event(c, event);
1991 else if (r == CS_CONNECT)
1993 int ret = ret = cs_rcvconnect(c->cs);
1994 yaz_log(c->log_details, "%p ZOOM_connection_do_io "
1995 "cs_rcvconnect returned %d", c, ret);
1998 int mask = ZOOM_SELECT_EXCEPT;
1999 if (c->cs->io_pending & CS_WANT_WRITE)
2000 mask += ZOOM_SELECT_WRITE;
2001 if (c->cs->io_pending & CS_WANT_READ)
2002 mask += ZOOM_SELECT_READ;
2003 ZOOM_connection_set_mask(c, mask);
2004 event = ZOOM_Event_create(ZOOM_EVENT_NONE);
2005 ZOOM_connection_put_event(c, event);
2009 event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
2010 ZOOM_connection_put_event(c, event);
2012 if (c->proto == PROTO_Z3950)
2013 ZOOM_connection_Z3950_send_init(c);
2016 /* no init request for SRW .. */
2017 assert(c->tasks->which == ZOOM_TASK_CONNECT);
2018 ZOOM_connection_remove_task(c);
2019 ZOOM_connection_set_mask(c, 0);
2020 ZOOM_connection_exec_task(c);
2022 c->state = STATE_ESTABLISHED;
2026 ZOOM_set_error(c, ZOOM_ERROR_CONNECT, c->host_port);
2027 ZOOM_connection_close(c);
2032 if (mask & ZOOM_SELECT_EXCEPT)
2034 if (!ZOOM_test_reconnect(c))
2036 ZOOM_set_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
2037 ZOOM_connection_close(c);
2041 if (mask & ZOOM_SELECT_READ)
2043 if (c->cs && (mask & ZOOM_SELECT_WRITE))
2049 ZOOM_connection_last_event(ZOOM_connection cs)
2052 return ZOOM_EVENT_NONE;
2053 return cs->last_event;
2057 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
2061 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2062 /* timeout and this connection was waiting */
2063 ZOOM_set_error(c, ZOOM_ERROR_TIMEOUT, 0);
2064 ZOOM_connection_close(c);
2065 ZOOM_connection_put_event(c, event);
2071 ZOOM_connection_process(ZOOM_connection c)
2077 event = ZOOM_connection_get_event(c);
2080 ZOOM_Event_destroy(event);
2083 ZOOM_connection_exec_task(c);
2084 event = ZOOM_connection_get_event(c);
2087 ZOOM_Event_destroy(event);
2094 ZOOM_event_nonblock(int no, ZOOM_connection *cs)
2098 yaz_log(log_details0, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
2100 for (i = 0; i<no; i++)
2102 ZOOM_connection c = cs[i];
2104 if (c && ZOOM_connection_process(c))
2110 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
2112 if (c->mask && mask)
2113 ZOOM_connection_do_io(c, mask);
2117 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
2120 return cs_fileno(c->cs);
2124 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
2132 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
2139 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
2141 return ZOOM_options_get_int(c->options, "timeout", 30);
2144 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
2149 ZOOM_connection_set_mask(c, 0);
2150 c->state = STATE_IDLE;
2156 * c-file-style: "Stroustrup"
2157 * indent-tabs-mode: nil
2159 * vim: shiftwidth=4 tabstop=8 expandtab