+Z_Records *Yaz_Z_Server::pack_records (const char *resultSetName,
+ int start, int *num,
+ Z_RecordComposition *comp,
+ int *next, int *pres,
+ int *format)
+{
+#if 0
+ int recno, total_length = 0, toget = *num, dumped_records = 0;
+ Z_Records *records =
+ (Z_Records *) odr_malloc (odr_encode(), sizeof(*records));
+ Z_NamePlusRecordList *reclist =
+ (Z_NamePlusRecordList *) odr_malloc (odr_encode(), sizeof(*reclist));
+ Z_NamePlusRecord **list =
+ (Z_NamePlusRecord **) odr_malloc (odr_encode(), sizeof(*list) * toget);
+
+ records->which = Z_Records_DBOSD;
+ records->u.databaseOrSurDiagnostics = reclist;
+ reclist->num_records = 0;
+ reclist->records = list;
+ *pres = Z_PRES_SUCCESS;
+ *num = 0;
+ *next = 0;
+
+ yaz_log(LOG_LOG, "Request to pack %d+%d", start, toget);
+ yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", m_preferredMessageSize,
+ m_maximumRecordSize);
+ for (recno = start; reclist->num_records < toget; recno++)
+ {
+ Z_NamePlusRecord *rec =
+ (Z_NamePlusRecord *) odr_malloc (odr_encode(), sizeof(*rec));
+ rec->databaseName = 0;
+ rec->which = Z_NamePlusRecord_databaseRecord;
+ rec->u.databaseRecord = 0;
+
+ Z_DefaultDiagFormat *diagnostics = (Z_DefaultDiagFormat *)
+ odr_malloc (odr_encode(), sizeof(*diagnostics));
+ diagnostics->diagnosticSetId = 0;
+ diagnostics->condition = 0;
+ diagnostics->which = Z_DefaultDiagFormat_v2Addinfo;
+
+ recv_Z_record (resultSetName, recno, format, comp, rec, diagnostics);
+
+ bend_fetch_rr freq;
+ Z_NamePlusRecord *thisrec;
+ int this_length = 0;
+ /*
+ * we get the number of bytes allocated on the stream before any
+ * allocation done by the backend - this should give us a reasonable
+ * idea of the total size of the data so far.
+ */
+ total_length = odr_total(a->encode) - dumped_records;
+ freq.errcode = 0;
+ freq.errstring = 0;
+ freq.basename = 0;
+ freq.len = 0;
+ freq.record = 0;
+ freq.last_in_set = 0;
+ freq.setname = setname;
+ freq.surrogate_flag = 0;
+ freq.number = recno;
+ freq.comp = comp;
+ freq.request_format = format;
+ freq.request_format_raw = oid;
+ freq.output_format = format;
+ freq.output_format_raw = 0;
+ freq.stream = a->encode;
+ freq.print = a->print;
+ freq.surrogate_flag = 0;
+ freq.referenceId = referenceId;
+ (*a->init->bend_fetch)(a->backend, &freq);
+ /* backend should be able to signal whether error is system-wide
+ or only pertaining to current record */
+ if (freq.errcode)
+ {
+ if (!freq.surrogate_flag)
+ {
+ *pres = Z_PRES_FAILURE;
+ return diagrec(a, freq.errcode, freq.errstring);
+ }
+ reclist->records[reclist->num_records] =
+ surrogatediagrec(a, freq.basename, freq.errcode,
+ freq.errstring);
+ reclist->num_records++;
+ *next = freq.last_in_set ? 0 : recno + 1;
+ continue;
+ }
+ if (freq.len >= 0)
+ this_length = freq.len;
+ else
+ this_length = odr_total(a->encode) - total_length;
+ yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d",
+ this_length, total_length);
+ if (this_length + total_length > a->preferredMessageSize)
+ {
+ /* record is small enough, really */
+ if (this_length <= a->preferredMessageSize)
+ {
+ yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
+ *pres = Z_PRES_PARTIAL_2;
+ break;
+ }
+ /* record can only be fetched by itself */
+ if (this_length < a->maximumRecordSize)
+ {
+ yaz_log(LOG_DEBUG, " Record > prefmsgsz");
+ if (toget > 1)
+ {
+ yaz_log(LOG_DEBUG, " Dropped it");
+ reclist->records[reclist->num_records] =
+ surrogatediagrec(a, freq.basename, 16, 0);
+ reclist->num_records++;
+ *next = freq.last_in_set ? 0 : recno + 1;
+ dumped_records += this_length;
+ continue;
+ }
+ }
+ else /* too big entirely */
+ {
+ yaz_log(LOG_DEBUG, "Record > maxrcdsz");
+ reclist->records[reclist->num_records] =
+ surrogatediagrec(a, freq.basename, 17, 0);
+ reclist->num_records++;
+ *next = freq.last_in_set ? 0 : recno + 1;
+ dumped_records += this_length;
+ continue;
+ }
+ }
+
+ if (!(thisrec = (Z_NamePlusRecord *)
+ odr_malloc(a->encode, sizeof(*thisrec))))
+ return 0;
+ if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
+ strlen(freq.basename) + 1)))
+ return 0;
+ strcpy(thisrec->databaseName, freq.basename);
+ thisrec->which = Z_NamePlusRecord_databaseRecord;
+
+ if (freq.output_format_raw)
+ {
+ struct oident *ident = oid_getentbyoid(freq.output_format_raw);
+ freq.output_format = ident->value;
+ }
+ thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
+ freq.record, freq.len);
+ if (!thisrec->u.databaseRecord)
+ return 0;
+ reclist->records[reclist->num_records] = thisrec;
+ reclist->num_records++;
+ *next = freq.last_in_set ? 0 : recno + 1;
+ }
+ *num = reclist->num_records;
+ return records;
+#endif
+ return 0;
+}
+
+void Yaz_Z_Server::piggyback (Z_SearchRequest *req,
+ Z_SearchResponse *res)