X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=server%2Fseshigh.c;h=44d69f7a8d6be75974a16c948bfda649dd8092c9;hp=fd86e0f97cd01028f1c3142cf46e20970043356e;hb=f69d4aa4609ff3daa71733da1ea0fcd8322ab954;hpb=b436ce38e1e619d2225c7c75c1f0de841aa13bad diff --git a/server/seshigh.c b/server/seshigh.c index fd86e0f..44d69f7 100644 --- a/server/seshigh.c +++ b/server/seshigh.c @@ -4,7 +4,34 @@ * Sebastian Hammer, Adam Dickmeiss * * $Log: seshigh.c,v $ - * Revision 1.73 1998-03-31 11:07:45 adam + * Revision 1.82 1998-10-20 14:00:30 quinn + * Fixed Scan + * + * Revision 1.81 1998/10/13 16:12:24 adam + * Added support for Surrogate Diagnostics for Scan Term entries. + * + * Revision 1.80 1998/09/02 12:41:53 adam + * Added decode stream in bend search structures. + * + * Revision 1.79 1998/08/19 16:10:08 adam + * Changed som member names of DeleteResultSetRequest/Response. + * + * Revision 1.78 1998/08/03 10:23:55 adam + * Fixed bug regarding Options for Sort. + * + * Revision 1.77 1998/07/20 12:38:42 adam + * Implemented delete result set service to server API. + * + * Revision 1.76 1998/05/27 16:57:07 adam + * Support for surrogate diagnostic records added for bend_fetch. + * + * Revision 1.75 1998/05/18 10:13:07 adam + * Fixed call to es_request handler - extra argument was passed. + * + * Revision 1.74 1998/03/31 15:13:20 adam + * Development towards compiled ASN.1. + * + * Revision 1.73 1998/03/31 11:07:45 adam * Furhter work on UNIverse resource report. * Added Extended Services handling in frontend server. * @@ -293,6 +320,8 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd); static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd); static void process_close(association *assoc, request *reqb); void save_referenceId (request *reqb, Z_ReferenceId *refid); +static Z_APDU *process_deleteRequest(association *assoc, request *reqb, + int *fd); static FILE *apduf = 0; /* for use in static mode */ static statserv_options_block *control_block = 0; @@ -389,12 +418,12 @@ void destroy_association(association *h) xfree(h); } -static void do_close(association *a, int reason, char *message) +static void do_close_req(association *a, int reason, char *message, + request *req) { Z_APDU apdu; Z_Close *cls = zget_Close(a->encode); - request *req = request_get(&a->outgoing); - + /* Purge request queue */ while (request_deq(&a->incoming)); while (request_deq(&a->outgoing)); @@ -417,6 +446,11 @@ static void do_close(association *a, int reason, char *message) a->state = ASSOC_DEAD; } +static void do_close(association *a, int reason, char *message) +{ + do_close_req (a, reason, message, request_get(&a->outgoing)); +} + /* * This is where PDUs from the client are read and the further * processing is initiated. Flow of control moves down through the @@ -510,7 +544,8 @@ void ir_session(IOCHAN h, int event) { request_deq(&assoc->incoming); if (process_request(assoc, req) < 0) - do_close(assoc, Z_Close_systemProblem, "Unknown error"); + do_close_req(assoc, Z_Close_systemProblem, "Unknown error", + req); } } if (event & EVENT_OUTPUT) @@ -567,7 +602,6 @@ static int process_request(association *assoc, request *req) res = process_presentRequest(assoc, req, &fd); break; case Z_APDU_scanRequest: res = process_scanRequest(assoc, req, &fd); break; -/* Chas: Added in from DALI */ case Z_APDU_extendedServicesRequest: if (assoc->bend_esrequest) res = process_ESRequest(assoc, req, &fd); @@ -576,7 +610,6 @@ static int process_request(association *assoc, request *req) logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU"); return -1; } -/* Chas: End of addition from DALI */ break; case Z_APDU_sortRequest: if (assoc->bend_sort) @@ -589,6 +622,15 @@ static int process_request(association *assoc, request *req) break; case Z_APDU_close: process_close(assoc, req); return 0; + case Z_APDU_deleteResultSetRequest: + if (assoc->bend_delete) + res = process_deleteRequest(assoc, req, &fd); + else + { + logf (LOG_WARN, "Cannot handle Delete APDU"); + return -1; + } + break; default: logf(LOG_WARN, "Bad APDU received"); return -1; @@ -676,13 +718,13 @@ static int process_response(association *assoc, request *req, Z_APDU *res) req->response = odr_getbuf(assoc->encode, &req->len_response, &req->size_response); odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */ - odr_reset(assoc->encode); if (assoc->print && !z_APDU(assoc->print, &res, 0)) { logf(LOG_WARN, "ODR print error: %s", odr_errmsg(odr_geterror(assoc->print))); odr_reset(assoc->print); } + odr_reset(assoc->encode); req->state = REQUEST_IDLE; request_enq(&assoc->outgoing, req); /* turn the work over to the ir_session handler */ @@ -729,6 +771,7 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb) binitreq.bend_search = NULL; binitreq.bend_present = NULL; binitreq.bend_esrequest = NULL; + binitreq.bend_delete = NULL; if (!(binitres = bend_init(&binitreq))) { logf(LOG_WARN, "Bad response from backend."); @@ -744,6 +787,8 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb) logf (LOG_DEBUG, "Present handler installed"); if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest)) logf (LOG_DEBUG, "ESRequest handler installed"); + if ((assoc->bend_delete = (int (*)())binitreq.bend_delete)) + logf (LOG_DEBUG, "Delete handler installed"); resp->referenceId = req->referenceId; *options = '\0'; @@ -758,7 +803,7 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb) ODR_MASK_SET(resp->options, Z_Options_present); strcat(options, " prst"); } - if (ODR_MASK_GET(req->options, Z_Options_delSet)) + if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete) { ODR_MASK_SET(resp->options, Z_Options_delSet); strcat(options, " del"); @@ -784,7 +829,7 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb) ODR_MASK_SET(resp->options, Z_Options_concurrentOperations); strcat(options, " concurop"); } - if (ODR_MASK_GET(req->options, Z_Options_sort && binitreq.bend_sort)) + if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort) { ODR_MASK_SET(resp->options, Z_Options_sort); strcat(options, " sort"); @@ -829,17 +874,32 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb) * These functions should be merged. */ +static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo) +{ +#if ASN_COMPILED + dr->which = Z_DefaultDiagFormat_v2Addinfo; + dr->u.v2Addinfo = addinfo ? addinfo : ""; +#else + dr->which = Z_DiagForm_v2AddInfo; + dr->addinfo = addinfo ? addinfo : ""; +#endif +} + /* * nonsurrogate diagnostic record. */ static Z_Records *diagrec(association *assoc, int error, char *addinfo) { int oid[OID_SIZE]; - Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec)); + Z_Records *rec = (Z_Records *) + odr_malloc (assoc->encode, sizeof(*rec)); oident bib1; - int *err = (int *)odr_malloc (assoc->encode, sizeof(*err)); - Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec)); - Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr)); + int *err = (int *) + odr_malloc (assoc->encode, sizeof(*err)); + Z_DiagRec *drec = (Z_DiagRec *) + odr_malloc (assoc->encode, sizeof(*drec)); + Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *) + odr_malloc (assoc->encode, sizeof(*dr)); bib1.proto = assoc->proto; bib1.oclass = CLASS_DIAGSET; @@ -849,6 +909,9 @@ static Z_Records *diagrec(association *assoc, int error, char *addinfo) "NULL"); *err = error; rec->which = Z_Records_NSD; +#if ASN_COMPILED + rec->u.nonSurrogateDiagnostic = dr; +#else #ifdef Z_95 rec->u.nonSurrogateDiagnostic = drec; drec->which = Z_DiagRec_defaultFormat; @@ -856,11 +919,11 @@ static Z_Records *diagrec(association *assoc, int error, char *addinfo) #else rec->u.nonSurrogateDiagnostic = dr; #endif +#endif dr->diagnosticSetId = odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid)); dr->condition = err; - dr->which = Z_DiagForm_v2AddInfo; - dr->addinfo = addinfo ? addinfo : ""; + set_addinfo (dr, addinfo); return rec; } @@ -868,7 +931,7 @@ static Z_Records *diagrec(association *assoc, int error, char *addinfo) * surrogate diagnostic. */ static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname, - int error, char *addinfo) + int error, char *addinfo) { int oid[OID_SIZE]; Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec)); @@ -891,8 +954,8 @@ static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname, dr->diagnosticSetId = odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid)); dr->condition = err; - dr->which = Z_DiagForm_v2AddInfo; - dr->addinfo = addinfo ? addinfo : ""; + set_addinfo (dr, addinfo); + return rec; } @@ -924,8 +987,14 @@ static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo) rec->diagnosticSetId = odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid)); rec->condition = err; + +#ifdef ASN_COMPILED + rec->which = Z_DefaultDiagFormat_v2Addinfo; + rec->u.v2Addinfo = addinfo ? addinfo : ""; +#else rec->which = Z_DiagForm_v2AddInfo; rec->addinfo = addinfo ? addinfo : ""; +#endif return recs; } @@ -957,7 +1026,7 @@ static Z_Records *pack_records(association *a, char *setname, int start, bend_fetchresult *fres; Z_NamePlusRecord *thisrec; Z_DatabaseRecord *thisext; - int this_length; + int this_length = 0; /* * we get the number of bytes allocated on the stream before any @@ -970,6 +1039,7 @@ static Z_Records *pack_records(association *a, char *setname, int start, freq.comp = comp; freq.format = format; freq.stream = a->encode; + freq.surrogate_flag = 0; if (!(fres = bend_fetch(a->backend, &freq, 0))) { *pres = Z_PRES_FAILURE; @@ -979,8 +1049,17 @@ static Z_Records *pack_records(association *a, char *setname, int start, or only pertaining to current record */ if (fres->errcode) { - *pres = Z_PRES_FAILURE; - return diagrec(a, fres->errcode, fres->errstring); + if (!freq.surrogate_flag) + { + *pres = Z_PRES_FAILURE; + return diagrec(a, fres->errcode, fres->errstring); + } + reclist->records[reclist->num_records] = + surrogatediagrec(a, fres->basename, fres->errcode, + fres->errstring); + reclist->num_records++; + *next = fres->last_in_set ? 0 : recno + 1; + continue; } if (fres->len >= 0) this_length = fres->len; @@ -1023,6 +1102,7 @@ static Z_Records *pack_records(association *a, char *setname, int start, continue; } } + if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec)))) return 0; if (!(thisrec->databaseName = (char *)odr_malloc(a->encode, @@ -1066,6 +1146,12 @@ static Z_Records *pack_records(association *a, char *setname, int start, } else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */ { +#if 0 + Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len); + + memcpy(sutrs, fres->record, fres->len); + sutrs[fres->len] = '\0'; +#else Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs)); thisext->which = Z_External_sutrs; @@ -1073,6 +1159,7 @@ static Z_Records *pack_records(association *a, char *setname, int start, sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len); sutrs->len = sutrs->size = fres->len; memcpy(sutrs->buf, fres->record, fres->len); +#endif } else /* octet-aligned record. */ { @@ -1115,6 +1202,7 @@ static Z_APDU *process_searchRequest(association *assoc, request *reqb, bsrr->basenames = req->databaseNames; bsrr->query = req->query; bsrr->stream = assoc->encode; + bsrr->decode = assoc->decode; bsrr->errcode = 0; bsrr->hits = 0; bsrr->errstring = NULL; @@ -1133,6 +1221,7 @@ static Z_APDU *process_searchRequest(association *assoc, request *reqb, bsrq.basenames = req->databaseNames; bsrq.query = req->query; bsrq.stream = assoc->encode; + bsrq.decode = assoc->decode; if (!(bsrt = bend_search(assoc->backend, &bsrq, fd))) return 0; bsrr->hits = bsrt->hits; @@ -1343,6 +1432,7 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd) int *numberOfEntriesReturned = (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned)); Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents)); + Z_DiagRecs *diagrecs_p = NULL; oident *attent; bend_scanrequest srq; bend_scanresult *srs; @@ -1360,21 +1450,25 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd) res->numberOfEntriesReturned = numberOfEntriesReturned; res->positionOfTerm = 0; res->entries = ents; - ents->which = Z_ListEntries_nonSurrogateDiagnostics; + ents->num_entries = 0; + ents->entries = NULL; + ents->num_nonsurrogateDiagnostics = 0; + ents->nonsurrogateDiagnostics = NULL; res->attributeSet = 0; res->otherInfo = 0; if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) || - attent->oclass != CLASS_ATTSET || attent->value != VAL_BIB1)) - ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 121, 0); + attent->oclass != CLASS_ATTSET + || attent->value != VAL_BIB1)) + diagrecs_p = diagrecs(assoc, 121, 0); else if (req->stepSize && *req->stepSize > 0) - ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 205, 0); + diagrecs_p = diagrecs(assoc, 205, 0); else { if (req->termListAndStartPoint->term->which == Z_Term_general) logf(LOG_DEBUG, " term: '%.*s'", - req->termListAndStartPoint->term->u.general->len, - req->termListAndStartPoint->term->u.general->buf); + req->termListAndStartPoint->term->u.general->len, + req->termListAndStartPoint->term->u.general->buf); srq.num_bases = req->num_databaseNames; srq.basenames = req->databaseNames; srq.num_entries = *req->numberOfTermsRequested; @@ -1388,55 +1482,75 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd) srq.term_position = req->preferredPositionInResponse ? *req->preferredPositionInResponse : 1; if (!(srs = bend_scan(assoc->backend, &srq, 0))) - ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 2, 0); + diagrecs_p = diagrecs(assoc, 2, 0); else if (srs->errcode) - ents->u.nonSurrogateDiagnostics = diagrecs(assoc, - srs->errcode, srs->errstring); + diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring); else { int i; - Z_Entries *list = (Z_Entries *)odr_malloc (assoc->encode, sizeof(*list)); - Z_Entry **tab = (Z_Entry **)odr_malloc (assoc->encode, - sizeof(*tab) * srs->num_entries); - + Z_Entry **tab = (Z_Entry **) + odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries); + if (srs->status == BEND_SCAN_PARTIAL) *scanStatus = Z_Scan_partial_5; else *scanStatus = Z_Scan_success; - ents->which = Z_ListEntries_entries; - ents->u.entries = list; - list->entries = tab; + ents->entries = tab; + ents->num_entries = srs->num_entries; + res->numberOfEntriesReturned = &ents->num_entries; + res->positionOfTerm = &srs->term_position; for (i = 0; i < srs->num_entries; i++) { Z_Entry *e; Z_TermInfo *t; Odr_oct *o; - - list->entries[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e)); - e->which = Z_Entry_termInfo; - e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t)); - t->suggestedAttributes = 0; - t->displayTerm = 0; - t->alternativeTerm = 0; - t->byAttributes = 0; - t->otherTermInfo = 0; - t->globalOccurrences = &srs->entries[i].occurrences; - t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term)); - t->term->which = Z_Term_general; - t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode, - sizeof(Odr_oct)); - o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size = - strlen(srs->entries[i].term)); - memcpy(o->buf, srs->entries[i].term, o->len); - logf(LOG_DEBUG, " term #%d: '%s' (%d)", i, - srs->entries[i].term, srs->entries[i].occurrences); + + tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e)); + if (srs->entries[i].occurrences >= 0) + { + e->which = Z_Entry_termInfo; + e->u.termInfo = t = (Z_TermInfo *) + odr_malloc(assoc->encode, sizeof(*t)); + t->suggestedAttributes = 0; + t->displayTerm = 0; + t->alternativeTerm = 0; + t->byAttributes = 0; + t->otherTermInfo = 0; + t->globalOccurrences = &srs->entries[i].occurrences; + t->term = (Z_Term *) + odr_malloc(assoc->encode, sizeof(*t->term)); + t->term->which = Z_Term_general; + t->term->u.general = o = + (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct)); + o->buf = (unsigned char *) + odr_malloc(assoc->encode, o->len = o->size = + strlen(srs->entries[i].term)); + memcpy(o->buf, srs->entries[i].term, o->len); + logf(LOG_DEBUG, " term #%d: '%s' (%d)", i, + srs->entries[i].term, srs->entries[i].occurrences); + } + else + { + Z_Records *zrecords = diagrec (assoc, + srs->entries[i].errcode, + srs->entries[i].errstring); + logf(LOG_DEBUG, " term sd code=%d addinfo=%s", + srs->entries[i].errcode, + (srs->entries[i].errstring?srs->entries[i].errstring : + "")); + assert (zrecords->which == Z_Records_NSD); + e->which = Z_Entry_surrogateDiagnostic; + e->u.surrogateDiagnostic = + zrecords->u.nonSurrogateDiagnostic; + } } - list->num_entries = i; - res->numberOfEntriesReturned = &list->num_entries; - res->positionOfTerm = &srs->term_position; } } - + if (diagrecs_p) + { + ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs; + ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs; + } return apdu; } @@ -1451,8 +1565,13 @@ static Z_APDU *process_sortRequest(association *assoc, request *reqb, logf(LOG_LOG, "Got SortRequest."); +#ifdef ASN_COMPILED + bsrr->num_input_setnames = req->num_inputResultSetNames; + bsrr->input_setnames = req->inputResultSetNames; +#else bsrr->num_input_setnames = req->inputResultSetNames->num_strings; bsrr->input_setnames = req->inputResultSetNames->strings; +#endif bsrr->output_setname = req->sortedResultSetName; bsrr->sort_sequence = req->sortSequence; bsrr->stream = assoc->encode; @@ -1468,9 +1587,22 @@ static Z_APDU *process_sortRequest(association *assoc, request *reqb, *res->sortStatus = bsrr->sort_status; res->resultSetStatus = 0; if (bsrr->errcode) - res->diagnostics = diagrecs(assoc, bsrr->errcode, bsrr->errstring); + { + Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring); +#ifdef ASN_COMPILED + res->diagnostics = dr->diagRecs; + res->num_diagnostics = dr->num_diagRecs; +#else + res->diagnostics = dr; +#endif + } else + { +#ifdef ASN_COMPILED + res->num_diagnostics = 0; +#endif res->diagnostics = 0; + } res->otherInfo = 0; apdu->which = Z_APDU_sortResponse; @@ -1478,6 +1610,43 @@ static Z_APDU *process_sortRequest(association *assoc, request *reqb, return apdu; } +static Z_APDU *process_deleteRequest(association *assoc, request *reqb, + int *fd) +{ + Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest; + Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *) + odr_malloc (assoc->encode, sizeof(*res)); + bend_delete_rr *bdrr = (bend_delete_rr *) + odr_malloc (assoc->encode, sizeof(*bdrr)); + Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu)); + + logf(LOG_LOG, "Got DeleteRequest."); + + bdrr->num_setnames = req->num_resultSetList; + bdrr->setnames = req->resultSetList; + bdrr->stream = assoc->encode; + bdrr->function = *req->deleteFunction; + + ((int (*)(void *, bend_delete_rr *)) + (*assoc->bend_delete))(assoc->backend, bdrr); + + res->referenceId = req->referenceId; + + res->deleteOperationStatus = (int *) + odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus)); + *res->deleteOperationStatus = bdrr->delete_status; + + res->deleteListStatuses = 0; + res->numberNotDeleted = 0; + res->bulkStatuses = 0; + res->deleteMessage = 0; + res->otherInfo = 0; + + apdu->which = Z_APDU_deleteResultSetResponse; + apdu->u.deleteResultSetResponse = res; + return apdu; +} + static void process_close(association *assoc, request *reqb) { Z_Close *req = reqb->request->u.close; @@ -1500,7 +1669,8 @@ static void process_close(association *assoc, request *reqb) req->diagnosticInformation : "NULL"); if (assoc->version < 3) /* to make do_force respond with close */ assoc->version = 3; - do_close(assoc, Z_Close_finished, "Association terminated by client"); + do_close_req(assoc, Z_Close_finished, "Association terminated by client", + reqb); } void save_referenceId (request *reqb, Z_ReferenceId *refid) @@ -1580,11 +1750,12 @@ static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd) esrequest.stream = assoc->encode; esrequest.errcode = 0; esrequest.errstring = NULL; - esrequest.request = reqb; - esrequest.association = assoc; - - (*assoc->bend_esrequest)(assoc->backend, &esrequest, fd); - + esrequest.request = reqb; + esrequest.association = assoc; + + ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend, + &esrequest); + /* If the response is being delayed, return NULL */ if (esrequest.request == NULL) return(NULL);