1 /* $Id: extract.c,v 1.168 2004-12-01 11:37:45 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
37 #if _FILE_OFFSET_BITS == 64
38 #define PRINTF_OFF_T "%Ld"
40 #define PRINTF_OFF_T "%ld"
43 #define USE_SHELLSORT 0
46 static void shellsort(void *ar, int r, size_t s,
47 int (*cmp)(const void *a, const void *b))
52 static const int incs[16] = { 1391376, 463792, 198768, 86961, 33936,
53 13776, 4592, 1968, 861, 336,
54 112, 48, 21, 7, 3, 1 };
55 for ( k = 0; k < 16; k++)
56 for (h = incs[k], i = h; i < r; i++)
60 while (j > h && (*cmp)(a + s*(j-h), v) > 0)
62 memcpy (a + s*j, a + s*(j-h), s);
70 static void logRecord (ZebraHandle zh)
72 ++zh->records_processed;
73 if (!(zh->records_processed % 1000))
75 yaz_log (YLOG_LOG, "Records: "ZINT_FORMAT" i/u/d "
76 ZINT_FORMAT"/"ZINT_FORMAT"/"ZINT_FORMAT,
77 zh->records_processed, zh->records_inserted, zh->records_updated,
82 static void extract_init (struct recExtractCtrl *p, RecWord *w)
84 w->zebra_maps = p->zebra_maps;
86 w->attrSet = VAL_BIB1;
94 static const char **searchRecordKey (ZebraHandle zh,
95 struct recKeys *reckeys,
96 int attrSetS, int attrUseS)
98 static const char *ws[32];
99 void *decode_handle = iscz1_start();
105 for (i = 0; i<32; i++)
108 while (off < reckeys->buf_used)
110 const char *src = reckeys->buf + off;
112 char *dst = (char*) &key;
113 int attrSet, attrUse;
115 iscz1_decode(decode_handle, &dst, &src);
116 assert(key.len < 4 && key.len > 2);
118 attrSet = (int) key.mem[0] >> 16;
119 attrUse = (int) key.mem[0] & 65535;
120 seqno = (int) key.mem[key.len-1];
122 if (attrUseS == attrUse && attrSetS == attrSet)
128 woff = seqno - startSeq;
129 if (woff >= 0 && woff < 31)
135 off = src - reckeys->buf;
137 iscz1_stop(decode_handle);
138 assert (off == reckeys->buf_used);
142 struct file_read_info {
143 off_t file_max; /* maximum offset so far */
144 off_t file_offset; /* current offset */
145 off_t file_moffset; /* offset of rec/rec boundary */
152 static struct file_read_info *file_read_start (int fd)
154 struct file_read_info *fi = (struct file_read_info *)
155 xmalloc (sizeof(*fi));
159 fi->file_moffset = 0;
165 static void file_read_stop (struct file_read_info *fi)
170 static off_t file_seek (void *handle, off_t offset)
172 struct file_read_info *p = (struct file_read_info *) handle;
173 p->file_offset = offset;
176 return lseek (p->fd, offset, SEEK_SET);
179 static off_t file_tell (void *handle)
181 struct file_read_info *p = (struct file_read_info *) handle;
182 return p->file_offset;
185 static int file_read (void *handle, char *buf, size_t count)
187 struct file_read_info *p = (struct file_read_info *) handle;
193 if (r > p->sdrmax - p->file_offset)
194 r = p->sdrmax - p->file_offset;
196 memcpy (buf, p->sdrbuf + p->file_offset, r);
199 r = read (fd, buf, count);
203 if (p->file_offset > p->file_max)
204 p->file_max = p->file_offset;
209 static void file_begin (void *handle)
211 struct file_read_info *p = (struct file_read_info *) handle;
213 p->file_offset = p->file_moffset;
214 if (!p->sdrbuf && p->file_moffset)
215 lseek (p->fd, p->file_moffset, SEEK_SET);
219 static void file_end (void *handle, off_t offset)
221 struct file_read_info *p = (struct file_read_info *) handle;
223 assert (p->file_more == 0);
225 p->file_moffset = offset;
228 static char *fileMatchStr (ZebraHandle zh,
229 struct recKeys *reckeys,
230 const char *fname, const char *spec)
232 static char dstBuf[2048]; /* static here ??? */
234 const char *s = spec;
235 static const char **w;
239 while (*s == ' ' || *s == '\t')
245 char attset_str[64], attname_str[64];
246 data1_attset *attset;
249 int attSet = 1, attUse = 1;
253 for (i = 0; *s && *s != ',' && *s != ')'; s++)
255 attset_str[i++] = *s;
256 attset_str[i] = '\0';
261 for (i = 0; *s && *s != ')'; s++)
263 attname_str[i++] = *s;
264 attname_str[i] = '\0';
267 if ((attset = data1_get_attset (zh->reg->dh, attset_str)))
270 attSet = attset->reference;
271 att = data1_getattbyname(zh->reg->dh, attset, attname_str);
275 attUse = atoi (attname_str);
277 w = searchRecordKey (zh, reckeys, attSet, attUse);
282 for (i = 0; i<32; i++)
287 yaz_log (YLOG_WARN, "Missing ) in match criteria %s in group %s",
288 spec, zh->m_group ? zh->m_group : "none");
293 for (i = 0; i<32; i++)
294 if (matchFlag[i] && w[i])
306 yaz_log (YLOG_WARN, "Record didn't contain match"
307 " fields in (%s,%s)", attset_str, attname_str);
315 const char *spec_src = NULL;
316 const char *s1 = ++s;
317 while (*s1 && *s1 != ' ' && *s1 != '\t')
323 memcpy (special, s, spec_len);
324 special[spec_len] = '\0';
327 if (!strcmp (special, "group"))
328 spec_src = zh->m_group;
329 else if (!strcmp (special, "database"))
330 spec_src = zh->basenames[0];
331 else if (!strcmp (special, "filename")) {
334 else if (!strcmp (special, "type"))
335 spec_src = zh->m_record_type;
340 strcpy (dst, spec_src);
341 dst += strlen (spec_src);
344 else if (*s == '\"' || *s == '\'')
346 int stopMarker = *s++;
350 while (*s && *s != stopMarker)
353 tmpString[i++] = *s++;
358 strcpy (dst, tmpString);
359 dst += strlen (tmpString);
363 yaz_log (YLOG_WARN, "Syntax error in match criteria %s in group %s",
364 spec, zh->m_group ? zh->m_group : "none");
371 yaz_log (YLOG_WARN, "No match criteria for record %s in group %s",
372 fname, zh->m_group ? zh->m_group : "none");
379 struct recordLogInfo {
382 struct recordGroup *rGroup;
385 void create_rec_keys_codec(struct recKeys *keys)
388 iscz1_reset(keys->codec_handle);
391 static int file_extract_record(ZebraHandle zh,
392 SYSNO *sysno, const char *fname,
394 struct file_read_info *fi,
397 RecordAttr *recordAttr;
399 const char *matchStr = 0;
402 off_t recordOffset = 0;
407 recType_byName (zh->reg->recTypes, zh->res, zh->m_record_type,
410 yaz_log (YLOG_WARN, "No such record type: %s", zh->m_record_type);
414 /* announce database */
415 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
417 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
418 zh->m_explain_database))
424 struct recExtractCtrl extractCtrl;
426 /* we are going to read from a file, so prepare the extraction */
429 create_rec_keys_codec(&zh->reg->keys);
431 zh->reg->sortKeys.buf_used = 0;
433 recordOffset = fi->file_moffset;
434 extractCtrl.offset = fi->file_moffset;
435 extractCtrl.readf = file_read;
436 extractCtrl.seekf = file_seek;
437 extractCtrl.tellf = file_tell;
438 extractCtrl.endf = file_end;
440 extractCtrl.init = extract_init;
441 extractCtrl.tokenAdd = extract_token_add;
442 extractCtrl.schemaAdd = extract_schema_add;
443 extractCtrl.dh = zh->reg->dh;
444 extractCtrl.match_criteria[0] = '\0';
445 extractCtrl.handle = zh;
446 for (i = 0; i<256; i++)
448 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
449 extractCtrl.seqno[i] = 1;
451 extractCtrl.seqno[i] = 0;
453 extractCtrl.zebra_maps = zh->reg->zebra_maps;
454 extractCtrl.flagShowRecords = !zh->m_flag_rw;
457 printf ("File: %s " PRINTF_OFF_T "\n", fname, recordOffset);
461 sprintf (msg, "%s:" PRINTF_OFF_T , fname, recordOffset);
462 yaz_log_init_prefix2 (msg);
465 r = (*recType->extract)(clientData, &extractCtrl);
467 yaz_log_init_prefix2 (0);
468 if (r == RECCTRL_EXTRACT_EOF)
470 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
472 /* error occured during extraction ... */
474 zh->records_processed < zh->m_file_verbose_limit)
476 yaz_log (YLOG_WARN, "fail %s %s " PRINTF_OFF_T, zh->m_record_type,
477 fname, recordOffset);
481 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
483 /* error occured during extraction ... */
485 zh->records_processed < zh->m_file_verbose_limit)
487 yaz_log (YLOG_WARN, "no filter for %s %s "
488 PRINTF_OFF_T, zh->m_record_type,
489 fname, recordOffset);
493 if (zh->reg->keys.buf_used == 0)
495 /* the extraction process returned no information - the record
496 is probably empty - unless flagShowRecords is in use */
500 if (zh->records_processed < zh->m_file_verbose_limit)
501 yaz_log (YLOG_WARN, "empty %s %s " PRINTF_OFF_T, zh->m_record_type,
502 fname, recordOffset);
505 if (extractCtrl.match_criteria[0])
506 matchStr = extractCtrl.match_criteria;
509 /* perform match if sysno not known and if match criteria is specified */
515 if (matchStr == 0 && zh->m_record_id && *zh->m_record_id)
518 matchStr = fileMatchStr (zh, &zh->reg->keys, fname,
522 yaz_log(YLOG_WARN, "Bad match criteria");
528 char *rinfo = dict_lookup (zh->reg->matchDict, matchStr);
531 assert(*rinfo == sizeof(*sysno));
532 memcpy (sysno, rinfo+1, sizeof(*sysno));
542 yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T, zh->m_record_type,
543 fname, recordOffset);
544 yaz_log (YLOG_WARN, "cannot delete record above (seems new)");
547 if (zh->records_processed < zh->m_file_verbose_limit)
548 yaz_log (YLOG_LOG, "add %s %s " PRINTF_OFF_T, zh->m_record_type,
549 fname, recordOffset);
550 rec = rec_new (zh->reg->records);
554 recordAttr = rec_init_attr (zh->reg->zei, rec);
558 dict_insert (zh->reg->matchDict, matchStr, sizeof(*sysno), sysno);
560 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
561 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
563 zh->records_inserted++;
567 /* record already exists */
568 struct recKeys delkeys;
569 struct sortKeys sortKeys;
571 rec = rec_get (zh->reg->records, *sysno);
574 recordAttr = rec_init_attr (zh->reg->zei, rec);
576 if (!force_update && recordAttr->runNumber ==
577 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
579 yaz_log (YLOG_LOG, "run number = %d", recordAttr->runNumber);
580 yaz_log (YLOG_LOG, "skipped %s %s " PRINTF_OFF_T,
581 zh->m_record_type, fname, recordOffset);
582 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
587 delkeys.buf_used = rec->size[recInfo_delKeys];
588 delkeys.buf = rec->info[recInfo_delKeys];
590 sortKeys.buf_used = rec->size[recInfo_sortKeys];
591 sortKeys.buf = rec->info[recInfo_sortKeys];
593 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
594 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
597 /* record going to be deleted */
598 if (!delkeys.buf_used)
600 yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T,
601 zh->m_record_type, fname, recordOffset);
602 yaz_log (YLOG_WARN, "cannot delete file above, storeKeys false");
606 if (zh->records_processed < zh->m_file_verbose_limit)
607 yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T,
608 zh->m_record_type, fname, recordOffset);
609 zh->records_deleted++;
611 dict_delete (zh->reg->matchDict, matchStr);
612 rec_del (zh->reg->records, &rec);
620 /* record going to be updated */
621 if (!delkeys.buf_used)
623 yaz_log (YLOG_LOG, "update %s %s " PRINTF_OFF_T,
624 zh->m_record_type, fname, recordOffset);
625 yaz_log (YLOG_WARN, "cannot update file above, storeKeys false");
629 if (zh->records_processed < zh->m_file_verbose_limit)
630 yaz_log (YLOG_LOG, "update %s %s " PRINTF_OFF_T,
631 zh->m_record_type, fname, recordOffset);
632 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
633 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
634 zh->records_updated++;
638 /* update file type */
639 xfree (rec->info[recInfo_fileType]);
640 rec->info[recInfo_fileType] =
641 rec_strdup (zh->m_record_type, &rec->size[recInfo_fileType]);
643 /* update filename */
644 xfree (rec->info[recInfo_filename]);
645 rec->info[recInfo_filename] =
646 rec_strdup (fname, &rec->size[recInfo_filename]);
648 /* update delete keys */
649 xfree (rec->info[recInfo_delKeys]);
650 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
652 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
653 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
654 zh->reg->keys.buf = NULL;
655 zh->reg->keys.buf_max = 0;
659 rec->info[recInfo_delKeys] = NULL;
660 rec->size[recInfo_delKeys] = 0;
663 /* update sort keys */
664 xfree (rec->info[recInfo_sortKeys]);
666 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
667 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
668 zh->reg->sortKeys.buf = NULL;
669 zh->reg->sortKeys.buf_max = 0;
671 /* save file size of original record */
672 zebraExplain_recordBytesIncrement (zh->reg->zei,
673 - recordAttr->recordSize);
674 recordAttr->recordSize = fi->file_moffset - recordOffset;
675 if (!recordAttr->recordSize)
676 recordAttr->recordSize = fi->file_max - recordOffset;
677 zebraExplain_recordBytesIncrement (zh->reg->zei,
678 recordAttr->recordSize);
680 /* set run-number for this record */
681 recordAttr->runNumber = zebraExplain_runNumberIncrement (zh->reg->zei,
684 /* update store data */
685 xfree (rec->info[recInfo_storeData]);
686 if (zh->m_store_data)
688 rec->size[recInfo_storeData] = recordAttr->recordSize;
689 rec->info[recInfo_storeData] = (char *)
690 xmalloc (recordAttr->recordSize);
691 if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
693 yaz_log (YLOG_ERRNO|YLOG_FATAL, "seek to " PRINTF_OFF_T " in %s",
694 recordOffset, fname);
697 if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
698 < recordAttr->recordSize)
700 yaz_log (YLOG_ERRNO|YLOG_FATAL, "read %d bytes of %s",
701 recordAttr->recordSize, fname);
707 rec->info[recInfo_storeData] = NULL;
708 rec->size[recInfo_storeData] = 0;
710 /* update database name */
711 xfree (rec->info[recInfo_databaseName]);
712 rec->info[recInfo_databaseName] =
713 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
716 recordAttr->recordOffset = recordOffset;
718 /* commit this record */
719 rec_put (zh->reg->records, &rec);
724 int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
731 struct file_read_info *fi;
732 const char *original_record_type = 0;
734 if (!zh->m_group || !*zh->m_group)
737 sprintf (gprefix, "%s.", zh->m_group);
739 yaz_log (YLOG_DEBUG, "fileExtract %s", fname);
741 /* determine file extension */
743 for (i = strlen(fname); --i >= 0; )
746 else if (fname[i] == '.')
748 strcpy (ext, fname+i+1);
751 /* determine file type - depending on extension */
752 original_record_type = zh->m_record_type;
753 if (!zh->m_record_type)
755 sprintf (ext_res, "%srecordType.%s", gprefix, ext);
756 zh->m_record_type = res_get (zh->res, ext_res);
758 if (!zh->m_record_type)
760 if (zh->records_processed < zh->m_file_verbose_limit)
761 yaz_log (YLOG_LOG, "? %s", fname);
764 /* determine match criteria */
765 if (!zh->m_record_id)
767 sprintf (ext_res, "%srecordId.%s", gprefix, ext);
768 zh->m_record_id = res_get (zh->res, ext_res);
771 if (sysno && deleteFlag)
777 if (zh->path_reg && !yaz_is_abspath (fname))
779 strcpy (full_rep, zh->path_reg);
780 strcat (full_rep, "/");
781 strcat (full_rep, fname);
784 strcpy (full_rep, fname);
787 if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
789 yaz_log (YLOG_WARN|YLOG_ERRNO, "open %s", full_rep);
790 zh->m_record_type = original_record_type;
794 fi = file_read_start (fd);
798 r = file_extract_record (zh, sysno, fname, deleteFlag, fi, 1);
799 } while (r && !sysno && fi->file_more);
803 zh->m_record_type = original_record_type;
808 If sysno is provided, then it's used to identify the reocord.
809 If not, and match_criteria is provided, then sysno is guessed
810 If not, and a record is provided, then sysno is got from there
813 int buffer_extract_record (ZebraHandle zh,
814 const char *buf, size_t buf_size,
817 const char *recordType,
819 const char *match_criteria,
824 RecordAttr *recordAttr;
825 struct recExtractCtrl extractCtrl;
827 const char *matchStr = 0;
828 RecType recType = NULL;
831 long recordOffset = 0;
832 struct zebra_fetch_control fc;
833 const char *pr_fname = fname; /* filename to print .. */
836 pr_fname = "<no file>"; /* make it printable if file is omitted */
839 fc.record_int_buf = buf;
840 fc.record_int_len = buf_size;
841 fc.record_int_pos = 0;
843 fc.record_offset = 0;
845 extractCtrl.offset = 0;
846 extractCtrl.readf = zebra_record_int_read;
847 extractCtrl.seekf = zebra_record_int_seek;
848 extractCtrl.tellf = zebra_record_int_tell;
849 extractCtrl.endf = zebra_record_int_end;
850 extractCtrl.fh = &fc;
852 create_rec_keys_codec(&zh->reg->keys);
854 zh->reg->sortKeys.buf_used = 0;
856 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
858 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
859 zh->m_explain_database))
863 if (recordType && *recordType) {
864 yaz_log (YLOG_DEBUG, "Record type explicitly specified: %s", recordType);
865 recType = recType_byName (zh->reg->recTypes, zh->res, recordType,
868 if (!(zh->m_record_type)) {
869 yaz_log (YLOG_WARN, "No such record type defined");
872 yaz_log (YLOG_DEBUG, "Get record type from rgroup: %s",zh->m_record_type);
873 recType = recType_byName (zh->reg->recTypes, zh->res,
874 zh->m_record_type, &clientData);
875 recordType = zh->m_record_type;
879 yaz_log (YLOG_WARN, "No such record type: %s", zh->m_record_type);
883 extractCtrl.init = extract_init;
884 extractCtrl.tokenAdd = extract_token_add;
885 extractCtrl.schemaAdd = extract_schema_add;
886 extractCtrl.dh = zh->reg->dh;
887 extractCtrl.handle = zh;
888 extractCtrl.zebra_maps = zh->reg->zebra_maps;
889 extractCtrl.flagShowRecords = 0;
890 extractCtrl.match_criteria[0] = '\0';
891 for (i = 0; i<256; i++)
893 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
894 extractCtrl.seqno[i] = 1;
896 extractCtrl.seqno[i] = 0;
899 r = (*recType->extract)(clientData, &extractCtrl);
901 if (r == RECCTRL_EXTRACT_EOF)
903 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
905 /* error occured during extraction ... */
906 yaz_log (YLOG_WARN, "extract error: generic");
909 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
911 /* error occured during extraction ... */
912 yaz_log (YLOG_WARN, "extract error: no such filter");
915 if (zh->reg->keys.buf_used == 0)
917 /* the extraction process returned no information - the record
918 is probably empty - unless flagShowRecords is in use */
921 yaz_log (YLOG_WARN, "No keys generated for record");
922 yaz_log (YLOG_WARN, " The file is probably empty");
928 if (extractCtrl.match_criteria[0])
929 match_criteria = extractCtrl.match_criteria;
933 if (match_criteria && *match_criteria) {
934 matchStr = match_criteria;
936 if (zh->m_record_id && *zh->m_record_id) {
937 matchStr = fileMatchStr (zh, &zh->reg->keys, pr_fname,
941 yaz_log (YLOG_WARN, "Bad match criteria (recordID)");
947 rinfo = dict_lookup (zh->reg->matchDict, matchStr);
950 assert(*rinfo == sizeof(*sysno));
951 memcpy (sysno, rinfo+1, sizeof(*sysno));
961 yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
962 pr_fname, (long) recordOffset);
963 yaz_log (YLOG_WARN, "cannot delete record above (seems new)");
966 yaz_log (YLOG_LOG, "add %s %s %ld", recordType, pr_fname,
967 (long) recordOffset);
968 rec = rec_new (zh->reg->records);
972 recordAttr = rec_init_attr (zh->reg->zei, rec);
976 dict_insert (zh->reg->matchDict, matchStr,
977 sizeof(*sysno), sysno);
979 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
980 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
982 zh->records_inserted++;
986 /* record already exists */
987 struct recKeys delkeys;
988 struct sortKeys sortKeys;
991 yaz_log (YLOG_LOG, "skipped %s %s %ld",
992 recordType, pr_fname, (long) recordOffset);
997 rec = rec_get (zh->reg->records, *sysno);
1000 recordAttr = rec_init_attr (zh->reg->zei, rec);
1002 if (!force_update) {
1003 if (recordAttr->runNumber ==
1004 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
1006 yaz_log (YLOG_LOG, "skipped %s %s %ld", recordType,
1007 pr_fname, (long) recordOffset);
1008 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
1015 delkeys.buf_used = rec->size[recInfo_delKeys];
1016 delkeys.buf = rec->info[recInfo_delKeys];
1018 sortKeys.buf_used = rec->size[recInfo_sortKeys];
1019 sortKeys.buf = rec->info[recInfo_sortKeys];
1021 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
1022 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
1025 /* record going to be deleted */
1026 if (!delkeys.buf_used)
1028 yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
1029 pr_fname, (long) recordOffset);
1030 yaz_log (YLOG_WARN, "cannot delete file above, storeKeys false");
1034 yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
1035 pr_fname, (long) recordOffset);
1036 zh->records_deleted++;
1038 dict_delete (zh->reg->matchDict, matchStr);
1039 rec_del (zh->reg->records, &rec);
1047 /* record going to be updated */
1048 if (!delkeys.buf_used)
1050 yaz_log (YLOG_LOG, "update %s %s %ld", recordType,
1051 pr_fname, (long) recordOffset);
1052 yaz_log (YLOG_WARN, "cannot update file above, storeKeys false");
1056 yaz_log (YLOG_LOG, "update %s %s %ld", recordType,
1057 pr_fname, (long) recordOffset);
1058 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
1059 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
1060 zh->records_updated++;
1064 /* update file type */
1065 xfree (rec->info[recInfo_fileType]);
1066 rec->info[recInfo_fileType] =
1067 rec_strdup (recordType, &rec->size[recInfo_fileType]);
1069 /* update filename */
1070 xfree (rec->info[recInfo_filename]);
1071 rec->info[recInfo_filename] =
1072 rec_strdup (fname, &rec->size[recInfo_filename]);
1074 /* update delete keys */
1075 xfree (rec->info[recInfo_delKeys]);
1076 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
1078 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1079 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1080 zh->reg->keys.buf = NULL;
1081 zh->reg->keys.buf_max = 0;
1085 rec->info[recInfo_delKeys] = NULL;
1086 rec->size[recInfo_delKeys] = 0;
1089 /* update sort keys */
1090 xfree (rec->info[recInfo_sortKeys]);
1092 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1093 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1094 zh->reg->sortKeys.buf = NULL;
1095 zh->reg->sortKeys.buf_max = 0;
1097 /* save file size of original record */
1098 zebraExplain_recordBytesIncrement (zh->reg->zei,
1099 - recordAttr->recordSize);
1101 recordAttr->recordSize = fi->file_moffset - recordOffset;
1102 if (!recordAttr->recordSize)
1103 recordAttr->recordSize = fi->file_max - recordOffset;
1105 recordAttr->recordSize = buf_size;
1107 zebraExplain_recordBytesIncrement (zh->reg->zei,
1108 recordAttr->recordSize);
1110 /* set run-number for this record */
1111 recordAttr->runNumber =
1112 zebraExplain_runNumberIncrement (zh->reg->zei, 0);
1114 /* update store data */
1115 xfree (rec->info[recInfo_storeData]);
1116 if (zh->m_store_data)
1118 rec->size[recInfo_storeData] = recordAttr->recordSize;
1119 rec->info[recInfo_storeData] = (char *)
1120 xmalloc (recordAttr->recordSize);
1121 memcpy (rec->info[recInfo_storeData], buf, recordAttr->recordSize);
1125 rec->info[recInfo_storeData] = NULL;
1126 rec->size[recInfo_storeData] = 0;
1128 /* update database name */
1129 xfree (rec->info[recInfo_databaseName]);
1130 rec->info[recInfo_databaseName] =
1131 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
1134 recordAttr->recordOffset = recordOffset;
1136 /* commit this record */
1137 rec_put (zh->reg->records, &rec);
1142 int explain_extract (void *handle, Record rec, data1_node *n)
1144 ZebraHandle zh = (ZebraHandle) handle;
1145 struct recExtractCtrl extractCtrl;
1148 if (zebraExplain_curDatabase (zh->reg->zei,
1149 rec->info[recInfo_databaseName]))
1152 if (zebraExplain_newDatabase (zh->reg->zei,
1153 rec->info[recInfo_databaseName], 0))
1157 create_rec_keys_codec(&zh->reg->keys);
1159 zh->reg->sortKeys.buf_used = 0;
1161 extractCtrl.init = extract_init;
1162 extractCtrl.tokenAdd = extract_token_add;
1163 extractCtrl.schemaAdd = extract_schema_add;
1164 extractCtrl.dh = zh->reg->dh;
1165 for (i = 0; i<256; i++)
1166 extractCtrl.seqno[i] = 0;
1167 extractCtrl.zebra_maps = zh->reg->zebra_maps;
1168 extractCtrl.flagShowRecords = 0;
1169 extractCtrl.match_criteria[0] = '\0';
1170 extractCtrl.handle = handle;
1173 grs_extract_tree(&extractCtrl, n);
1175 if (rec->size[recInfo_delKeys])
1177 struct recKeys delkeys;
1178 struct sortKeys sortkeys;
1180 delkeys.buf_used = rec->size[recInfo_delKeys];
1181 delkeys.buf = rec->info[recInfo_delKeys];
1183 sortkeys.buf_used = rec->size[recInfo_sortKeys];
1184 sortkeys.buf = rec->info[recInfo_sortKeys];
1186 extract_flushSortKeys (zh, rec->sysno, 0, &sortkeys);
1187 extract_flushRecordKeys (zh, rec->sysno, 0, &delkeys);
1189 extract_flushRecordKeys (zh, rec->sysno, 1, &zh->reg->keys);
1190 extract_flushSortKeys (zh, rec->sysno, 1, &zh->reg->sortKeys);
1192 xfree (rec->info[recInfo_delKeys]);
1193 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1194 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1195 zh->reg->keys.buf = NULL;
1196 zh->reg->keys.buf_max = 0;
1198 xfree (rec->info[recInfo_sortKeys]);
1199 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1200 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1201 zh->reg->sortKeys.buf = NULL;
1202 zh->reg->sortKeys.buf_max = 0;
1207 void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
1208 int cmd, struct recKeys *reckeys)
1210 void *decode_handle = iscz1_start();
1213 ZebraExplainInfo zei = zh->reg->zei;
1215 if (!zh->reg->key_buf)
1217 int mem= 1024*1024* atoi( res_get_def( zh->res, "memmax", "8"));
1220 yaz_log(YLOG_WARN, "Invalid memory setting, using default 8 MB");
1223 /* FIXME: That "8" should be in a default settings include */
1224 /* not hard-coded here! -H */
1225 zh->reg->key_buf = (char**) xmalloc (mem);
1226 zh->reg->ptr_top = mem/sizeof(char*);
1228 zh->reg->key_buf_used = 0;
1229 zh->reg->key_file_no = 0;
1231 zebraExplain_recordCountIncrement (zei, cmd ? 1 : -1);
1233 while (off < reckeys->buf_used)
1235 const char *src = reckeys->buf + off;
1237 char *dst = (char*) &key;
1238 int attrSet, attrUse;
1240 iscz1_decode(decode_handle, &dst, &src);
1241 assert(key.len == 4);
1243 attrSet = (int) key.mem[0] >> 16;
1244 attrUse = (int) key.mem[0] & 65535;
1246 if (zh->reg->key_buf_used + 1024 >
1247 (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
1248 extract_flushWriteKeys (zh,0);
1250 assert(zh->reg->ptr_i > 0);
1251 (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
1252 (char*)zh->reg->key_buf + zh->reg->key_buf_used;
1254 ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1256 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1259 zh->reg->key_buf_used +=
1260 key_SU_encode (ch,((char*)zh->reg->key_buf) +
1261 zh->reg->key_buf_used);
1263 ((char*)zh->reg->key_buf) [(zh->reg->key_buf_used)++] = *src++;
1265 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = '\0';
1266 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = cmd;
1269 if (key.mem[1]) /* filter specify record ID */
1270 key.mem[0] = key.mem[1];
1273 key.mem[1] = key.mem[2]; /* section_id */
1274 key.mem[2] = key.mem[3]; /* sequence .. */
1276 memcpy ((char*)zh->reg->key_buf + zh->reg->key_buf_used,
1278 (zh->reg->key_buf_used) += sizeof(key);
1279 off = src - reckeys->buf;
1281 assert (off == reckeys->buf_used);
1282 iscz1_stop(decode_handle);
1285 void extract_flushWriteKeys (ZebraHandle zh, int final)
1286 /* optimizing: if final=1, and no files written yet */
1287 /* push the keys directly to merge, sidestepping the */
1288 /* temp file altogether. Speeds small updates */
1291 char out_fname[200];
1293 struct encode_info encode_info;
1294 int ptr_i = zh->reg->ptr_i;
1299 if (!zh->reg->key_buf || ptr_i <= 0)
1301 yaz_log (YLOG_DEBUG, " nothing to flush section=%d buf=%p i=%d",
1302 zh->reg->key_file_no, zh->reg->key_buf, ptr_i);
1303 yaz_log (YLOG_DEBUG, " buf=%p ",
1305 yaz_log (YLOG_DEBUG, " ptr=%d ",zh->reg->ptr_i);
1306 yaz_log (YLOG_DEBUG, " reg=%p ",zh->reg);
1311 (zh->reg->key_file_no)++;
1312 yaz_log (YLOG_LOG, "sorting section %d", (zh->reg->key_file_no));
1313 yaz_log (YLOG_DEBUG, " sort_buff at %p n=%d",
1314 zh->reg->key_buf + zh->reg->ptr_top - ptr_i,ptr_i);
1316 qsort (zh->reg->key_buf + zh->reg->ptr_top - ptr_i, ptr_i,
1317 sizeof(char*), key_qsort_compare);
1319 /* zebra.cfg: tempfiles:
1320 Y: always use temp files (old way)
1321 A: use temp files, if more than one (auto)
1322 = if this is both the last and the first
1323 N: never bother with temp files (new) */
1325 temp_policy=toupper(res_get_def(zh->res,"tempfiles","auto")[0]);
1326 if (temp_policy != 'Y' && temp_policy != 'N' && temp_policy != 'A') {
1327 yaz_log (YLOG_WARN, "Illegal tempfiles setting '%c'. using 'Auto' ",
1332 if ( ( temp_policy =='N' ) || /* always from memory */
1333 ( ( temp_policy =='A' ) && /* automatic */
1334 (zh->reg->key_file_no == 1) && /* this is first time */
1335 (final) ) ) /* and last (=only) time */
1336 { /* go directly from memory */
1337 zh->reg->key_file_no =0; /* signal not to read files */
1338 zebra_index_merge(zh);
1340 zh->reg->key_buf_used = 0;
1344 /* Not doing directly from memory, write into a temp file */
1345 extract_get_fname_tmp (zh, out_fname, zh->reg->key_file_no);
1347 if (!(outf = fopen (out_fname, "wb")))
1349 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fopen %s", out_fname);
1352 yaz_log (YLOG_LOG, "writing section %d", zh->reg->key_file_no);
1353 prevcp = cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1355 encode_key_init (&encode_info);
1356 encode_key_write (cp, &encode_info, outf);
1360 cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1361 if (strcmp (cp, prevcp))
1363 encode_key_flush ( &encode_info, outf);
1364 encode_key_init (&encode_info);
1365 encode_key_write (cp, &encode_info, outf);
1369 encode_key_write (cp + strlen(cp), &encode_info, outf);
1371 encode_key_flush ( &encode_info, outf);
1373 qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_x_compare);
1374 extract_get_fname_tmp (out_fname, key_file_no);
1376 if (!(outf = fopen (out_fname, "wb")))
1378 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fopen %s", out_fname);
1381 yaz_log (YLOG_LOG, "writing section %d", key_file_no);
1383 prevcp = key_buf[ptr_top-i];
1385 if (!--i || strcmp (prevcp, key_buf[ptr_top-i]))
1387 key_y_len = strlen(prevcp)+1;
1389 yaz_log (YLOG_LOG, "key_y_len: %2d %02x %02x %s",
1390 key_y_len, prevcp[0], prevcp[1], 2+prevcp);
1392 qsort (key_buf + ptr_top-ptr_i, ptr_i - i,
1393 sizeof(char*), key_y_compare);
1394 cp = key_buf[ptr_top-ptr_i];
1396 encode_key_init (&encode_info);
1397 encode_key_write (cp, &encode_info, outf);
1400 cp = key_buf[ptr_top-ptr_i];
1401 encode_key_write (cp+key_y_len, &encode_info, outf);
1403 encode_key_flush ( &encode_info, outf);
1406 prevcp = key_buf[ptr_top-ptr_i];
1411 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fclose %s", out_fname);
1414 yaz_log (YLOG_LOG, "finished section %d", zh->reg->key_file_no);
1416 zh->reg->key_buf_used = 0;
1419 void extract_add_it_key (ZebraHandle zh,
1421 const char *str, int slen, struct it_key *key)
1424 struct recKeys *keys = &zh->reg->keys;
1425 const char *src = (char*) key;
1427 if (keys->buf_used+1024 > keys->buf_max)
1431 b = (char *) xmalloc (keys->buf_max += 128000);
1432 if (keys->buf_used > 0)
1433 memcpy (b, keys->buf, keys->buf_used);
1437 dst = keys->buf + keys->buf_used;
1439 iscz1_encode(keys->codec_handle, &dst, &src);
1442 memcpy (dst, str, slen);
1445 keys->buf_used = dst - keys->buf;
1448 void extract_add_index_string (RecWord *p, const char *str, int length)
1452 key.mem[0] = p->attrSet * 65536 + p->attrUse;
1453 key.mem[1] = p->record_id;
1454 key.mem[2] = p->section_id;
1455 key.mem[3] = p->seqno;
1458 /* just for debugging .. */
1459 yaz_log(YLOG_LOG, "add: set=%d use=%d "
1460 "record_id=%lld section_id=%lld seqno=%lld",
1461 p->attrSet, p->attrUse, p->record_id, p->section_id, p->seqno);
1464 extract_add_it_key(p->extractCtrl->handle, p->reg_type, str,
1468 static void extract_add_sort_string (RecWord *p, const char *str,
1471 ZebraHandle zh = p->extractCtrl->handle;
1472 struct sortKeys *sk = &zh->reg->sortKeys;
1475 while (off < sk->buf_used)
1479 off += key_SU_decode(&set, sk->buf + off);
1480 off += key_SU_decode(&use, sk->buf + off);
1481 off += key_SU_decode(&slen, sk->buf + off);
1483 if (p->attrSet == set && p->attrUse == use)
1486 assert (off == sk->buf_used);
1488 if (sk->buf_used + IT_MAX_WORD > sk->buf_max)
1492 b = (char *) xmalloc (sk->buf_max += 128000);
1493 if (sk->buf_used > 0)
1494 memcpy (b, sk->buf, sk->buf_used);
1498 off += key_SU_encode(p->attrSet, sk->buf + off);
1499 off += key_SU_encode(p->attrUse, sk->buf + off);
1500 off += key_SU_encode(length, sk->buf + off);
1501 memcpy (sk->buf + off, str, length);
1502 sk->buf_used = off + length;
1505 void extract_add_string (RecWord *p, const char *string, int length)
1507 assert (length > 0);
1508 if (zebra_maps_is_sort (p->zebra_maps, p->reg_type))
1509 extract_add_sort_string (p, string, length);
1511 extract_add_index_string (p, string, length);
1514 static void extract_add_incomplete_field (RecWord *p)
1516 const char *b = p->string;
1517 int remain = p->length;
1518 const char **map = 0;
1521 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain, 0);
1525 char buf[IT_MAX_WORD+1];
1529 while (map && *map && **map == *CHR_SPACE)
1531 remain = p->length - (b - p->string);
1533 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain, 0);
1540 while (map && *map && **map != *CHR_SPACE)
1542 const char *cp = *map;
1544 while (i < IT_MAX_WORD && *cp)
1546 remain = p->length - (b - p->string);
1548 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain, 0);
1554 extract_add_string (p, buf, i);
1559 static void extract_add_complete_field (RecWord *p)
1561 const char *b = p->string;
1562 char buf[IT_MAX_WORD+1];
1563 const char **map = 0;
1564 int i = 0, remain = p->length;
1565 int first; /* first position */
1567 yaz_log(YLOG_DEBUG, "Complete field, w='%.*s'", p->length, p->string);
1570 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b, remain, 1);
1572 while (remain > 0 && i < IT_MAX_WORD)
1574 while (map && *map && **map == *CHR_SPACE)
1576 remain = p->length - (b - p->string);
1581 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain, first);
1589 if (i && i < IT_MAX_WORD)
1590 buf[i++] = *CHR_SPACE;
1591 while (map && *map && **map != *CHR_SPACE)
1593 const char *cp = *map;
1595 if (**map == *CHR_CUT)
1601 if (i >= IT_MAX_WORD)
1603 yaz_log(YLOG_DEBUG, "Adding string to index '%d'", **map);
1604 while (i < IT_MAX_WORD && *cp)
1607 remain = p->length - (b - p->string);
1610 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b,
1619 extract_add_string (p, buf, i);
1622 void extract_token_add (RecWord *p)
1626 yaz_log (YLOG_LOG, "token_add "
1627 "reg_type=%c attrSet=%d attrUse=%d seqno=%d s=%.*s",
1628 p->reg_type, p->attrSet, p->attrUse, p->seqno, p->length,
1631 if ((wrbuf = zebra_replace(p->zebra_maps, p->reg_type, 0,
1632 p->string, p->length)))
1634 p->string = wrbuf_buf(wrbuf);
1635 p->length = wrbuf_len(wrbuf);
1637 if (zebra_maps_is_complete (p->zebra_maps, p->reg_type))
1638 extract_add_complete_field (p);
1640 extract_add_incomplete_field(p);
1643 void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
1645 ZebraHandle zh = (ZebraHandle) (p->handle);
1646 zebraExplain_addSchema (zh->reg->zei, oid);
1649 void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
1650 int cmd, struct sortKeys *sk)
1652 SortIdx sortIdx = zh->reg->sortIdx;
1655 sortIdx_sysno (sortIdx, sysno);
1657 while (off < sk->buf_used)
1661 off += key_SU_decode(&set, sk->buf + off);
1662 off += key_SU_decode(&use, sk->buf + off);
1663 off += key_SU_decode(&slen, sk->buf + off);
1665 sortIdx_type(sortIdx, use);
1667 sortIdx_add(sortIdx, sk->buf + off, slen);
1669 sortIdx_add(sortIdx, "", 1);
1674 void encode_key_init (struct encode_info *i)
1683 i->encode_handle = iscz1_start();
1689 /* this is the old encode_key_write
1690 * may be deleted once we are confident that the new works
1693 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1696 char *bp = i->buf, *bp0;
1697 const char *src = (char *) &key;
1699 /* copy term to output buf */
1700 while ((*bp++ = *k++))
1702 /* and copy & align key so we can mangle */
1703 memcpy (&key, k+1, sizeof(struct it_key)); /* *k is insert/delete */
1706 iscz1_encode(i->encode_handle, &bp, &src);
1707 *bp0 = (*k * 128) + bp - bp0 - 1; /* length and insert/delete combined */
1708 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1710 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
1715 void encode_key_flush (struct encode_info *i, FILE *outf)
1716 { /* dummy routine */
1717 iscz1_stop(i->encode_handle);
1722 /* new encode_key_write
1723 * The idea is to buffer one more key, and compare them
1724 * If we are going to delete and insert the same key,
1725 * we may as well not bother. Should make a difference in
1726 * updates with small modifications (appending to a mbox)
1728 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1733 if (*k) /* first time for new key */
1736 while ((*bp++ = *k++))
1738 i->keylen= bp - i->buf -1;
1739 assert(i->keylen+1+sizeof(struct it_key) < ENCODE_BUFLEN);
1743 bp=i->buf + i->keylen;
1748 memcpy (&key, k+1, sizeof(struct it_key));
1749 if (0==i->prevsys) /* no previous filter, fill up */
1751 i->prevsys=key.sysno;
1752 i->prevseq=key.seqno;
1755 else if ( (i->prevsys==key.sysno) &&
1756 (i->prevseq==key.seqno) &&
1758 { /* same numbers, diff cmd, they cancel out */
1762 { /* different stuff, write previous, move buf */
1763 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
1764 if (i->sysno != i->prevsys)
1766 i->sysno = i->prevsys;
1769 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
1771 return; /* ??? Filters some sort of duplicates away */
1772 /* ??? Can this ever happen -H 15oct02 */
1774 bp = encode_key_int (i->prevseq - i->seqno, bp);
1775 i->seqno = i->prevseq;
1776 i->cmd = i->prevcmd;
1777 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1779 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
1782 i->keylen=0; /* ok, it's written, forget it */
1783 i->prevsys=key.sysno;
1784 i->prevseq=key.seqno;
1789 void encode_key_flush (struct encode_info *i, FILE *outf)
1790 { /* flush the last key from i */
1791 char *bp =i->buf + i->keylen;
1794 return; /* nothing to flush */
1797 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
1798 if (i->sysno != i->prevsys)
1800 i->sysno = i->prevsys;
1803 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
1805 return; /* ??? Filters some sort of duplicates away */
1806 /* ??? Can this ever happen -H 15oct02 */
1808 bp = encode_key_int (i->prevseq - i->seqno, bp);
1809 i->seqno = i->prevseq;
1810 i->cmd = i->prevcmd;
1811 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1813 yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
1816 i->keylen=0; /* ok, it's written, forget it */
1817 i->prevsys=0; /* forget the values too */