1 /* $Id: extract.c,v 1.154 2004-06-03 11:38:34 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
38 #if _FILE_OFFSET_BITS == 64
39 #define PRINTF_OFF_T "%Ld"
41 #define PRINTF_OFF_T "%ld"
44 #define USE_SHELLSORT 0
47 static void shellsort(void *ar, int r, size_t s,
48 int (*cmp)(const void *a, const void *b))
53 static const int incs[16] = { 1391376, 463792, 198768, 86961, 33936,
54 13776, 4592, 1968, 861, 336,
55 112, 48, 21, 7, 3, 1 };
56 for ( k = 0; k < 16; k++)
57 for (h = incs[k], i = h; i < r; i++)
61 while (j > h && (*cmp)(a + s*(j-h), v) > 0)
63 memcpy (a + s*j, a + s*(j-h), s);
71 static void logRecord (ZebraHandle zh)
73 ++zh->records_processed;
74 if (!(zh->records_processed % 1000))
76 logf (LOG_LOG, "Records: %7d i/u/d %d/%d/%d",
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;
92 static const char **searchRecordKey (ZebraHandle zh,
93 struct recKeys *reckeys,
94 int attrSetS, int attrUseS)
96 static const char *ws[32];
108 for (i = 0; i<32; i++)
112 chS = zebraExplain_lookupSU (zh->reg->zei, attrSetS, attrUseS);
116 while (off < reckeys->buf_used)
119 const char *src = reckeys->buf + off;
127 memcpy (&ch, src, sizeof(ch));
133 memcpy (&attrSet, src, sizeof(attrSet));
134 src += sizeof(attrSet);
138 memcpy (&attrUse, src, sizeof(attrUse));
139 src += sizeof(attrUse);
146 seqno += ((lead>>2) & 15)-1;
149 memcpy (&seqno, src, sizeof(seqno));
150 src += sizeof(seqno);
156 attrUseS == attrUse && attrSetS == attrSet
165 woff = seqno - startSeq;
166 if (woff >= 0 && woff < 31)
170 off = src - reckeys->buf;
172 assert (off == reckeys->buf_used);
176 struct file_read_info {
177 off_t file_max; /* maximum offset so far */
178 off_t file_offset; /* current offset */
179 off_t file_moffset; /* offset of rec/rec boundary */
186 static struct file_read_info *file_read_start (int fd)
188 struct file_read_info *fi = (struct file_read_info *)
189 xmalloc (sizeof(*fi));
193 fi->file_moffset = 0;
199 static void file_read_stop (struct file_read_info *fi)
204 static off_t file_seek (void *handle, off_t offset)
206 struct file_read_info *p = (struct file_read_info *) handle;
207 p->file_offset = offset;
210 return lseek (p->fd, offset, SEEK_SET);
213 static off_t file_tell (void *handle)
215 struct file_read_info *p = (struct file_read_info *) handle;
216 return p->file_offset;
219 static int file_read (void *handle, char *buf, size_t count)
221 struct file_read_info *p = (struct file_read_info *) handle;
227 if (r > p->sdrmax - p->file_offset)
228 r = p->sdrmax - p->file_offset;
230 memcpy (buf, p->sdrbuf + p->file_offset, r);
233 r = read (fd, buf, count);
237 if (p->file_offset > p->file_max)
238 p->file_max = p->file_offset;
243 static void file_begin (void *handle)
245 struct file_read_info *p = (struct file_read_info *) handle;
247 p->file_offset = p->file_moffset;
248 if (!p->sdrbuf && p->file_moffset)
249 lseek (p->fd, p->file_moffset, SEEK_SET);
253 static void file_end (void *handle, off_t offset)
255 struct file_read_info *p = (struct file_read_info *) handle;
257 assert (p->file_more == 0);
259 p->file_moffset = offset;
262 static char *fileMatchStr (ZebraHandle zh,
263 struct recKeys *reckeys,
264 const char *fname, const char *spec)
266 static char dstBuf[2048]; /* static here ??? */
268 const char *s = spec;
269 static const char **w;
273 while (*s == ' ' || *s == '\t')
279 char attset_str[64], attname_str[64];
280 data1_attset *attset;
283 int attSet = 1, attUse = 1;
287 for (i = 0; *s && *s != ',' && *s != ')'; s++)
289 attset_str[i++] = *s;
290 attset_str[i] = '\0';
295 for (i = 0; *s && *s != ')'; s++)
297 attname_str[i++] = *s;
298 attname_str[i] = '\0';
301 if ((attset = data1_get_attset (zh->reg->dh, attset_str)))
304 attSet = attset->reference;
305 att = data1_getattbyname(zh->reg->dh, attset, attname_str);
309 attUse = atoi (attname_str);
311 w = searchRecordKey (zh, reckeys, attSet, attUse);
316 for (i = 0; i<32; i++)
321 logf (LOG_WARN, "Missing ) in match criteria %s in group %s",
322 spec, zh->m_group ? zh->m_group : "none");
327 for (i = 0; i<32; i++)
328 if (matchFlag[i] && w[i])
340 logf (LOG_WARN, "Record didn't contain match"
341 " fields in (%s,%s)", attset_str, attname_str);
349 const char *spec_src = NULL;
350 const char *s1 = ++s;
351 while (*s1 && *s1 != ' ' && *s1 != '\t')
357 memcpy (special, s, spec_len);
358 special[spec_len] = '\0';
361 if (!strcmp (special, "group"))
362 spec_src = zh->m_group;
363 else if (!strcmp (special, "database"))
364 spec_src = zh->basenames[0];
365 else if (!strcmp (special, "filename")) {
368 else if (!strcmp (special, "type"))
369 spec_src = zh->m_record_type;
374 strcpy (dst, spec_src);
375 dst += strlen (spec_src);
378 else if (*s == '\"' || *s == '\'')
380 int stopMarker = *s++;
384 while (*s && *s != stopMarker)
387 tmpString[i++] = *s++;
392 strcpy (dst, tmpString);
393 dst += strlen (tmpString);
397 logf (LOG_WARN, "Syntax error in match criteria %s in group %s",
398 spec, zh->m_group ? zh->m_group : "none");
405 logf (LOG_WARN, "No match criteria for record %s in group %s",
406 fname, zh->m_group ? zh->m_group : "none");
413 struct recordLogInfo {
416 struct recordGroup *rGroup;
419 static int file_extract_record(ZebraHandle zh,
420 SYSNO *sysno, const char *fname,
422 struct file_read_info *fi,
425 RecordAttr *recordAttr;
427 const char *matchStr;
430 off_t recordOffset = 0;
436 recType_byName (zh->reg->recTypes, zh->m_record_type, subType,
439 logf (LOG_WARN, "No such record type: %s", zh->m_record_type);
443 /* announce database */
444 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
446 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
447 zh->m_explain_database))
453 struct recExtractCtrl extractCtrl;
455 /* we are going to read from a file, so prepare the extraction */
458 zh->reg->keys.buf_used = 0;
459 zh->reg->keys.prevAttrUse = -1;
460 zh->reg->keys.prevAttrSet = -1;
461 zh->reg->keys.prevSeqNo = 0;
462 zh->reg->sortKeys.buf_used = 0;
464 recordOffset = fi->file_moffset;
465 extractCtrl.offset = fi->file_moffset;
466 extractCtrl.readf = file_read;
467 extractCtrl.seekf = file_seek;
468 extractCtrl.tellf = file_tell;
469 extractCtrl.endf = file_end;
471 extractCtrl.subType = subType;
472 extractCtrl.init = extract_init;
473 extractCtrl.tokenAdd = extract_token_add;
474 extractCtrl.schemaAdd = extract_schema_add;
475 extractCtrl.dh = zh->reg->dh;
476 extractCtrl.handle = zh;
477 for (i = 0; i<256; i++)
479 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
480 extractCtrl.seqno[i] = 1;
482 extractCtrl.seqno[i] = 0;
484 extractCtrl.zebra_maps = zh->reg->zebra_maps;
485 extractCtrl.flagShowRecords = !zh->m_flag_rw;
488 printf ("File: %s " PRINTF_OFF_T "\n", fname, recordOffset);
492 sprintf (msg, "%s:" PRINTF_OFF_T , fname, recordOffset);
493 yaz_log_init_prefix2 (msg);
496 r = (*recType->extract)(clientData, &extractCtrl);
498 yaz_log_init_prefix2 (0);
499 if (r == RECCTRL_EXTRACT_EOF)
501 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
503 /* error occured during extraction ... */
505 zh->records_processed < zh->m_file_verbose_limit)
507 logf (LOG_WARN, "fail %s %s " PRINTF_OFF_T, zh->m_record_type,
508 fname, recordOffset);
512 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
514 /* error occured during extraction ... */
516 zh->records_processed < zh->m_file_verbose_limit)
518 logf (LOG_WARN, "no filter for %s %s "
519 PRINTF_OFF_T, zh->m_record_type,
520 fname, recordOffset);
524 if (zh->reg->keys.buf_used == 0)
526 /* the extraction process returned no information - the record
527 is probably empty - unless flagShowRecords is in use */
531 logf (LOG_WARN, "empty %s %s " PRINTF_OFF_T, zh->m_record_type,
532 fname, recordOffset);
537 /* perform match if sysno not known and if match criteria is specified */
544 if (zh->m_record_id && *zh->m_record_id)
548 matchStr = fileMatchStr (zh, &zh->reg->keys, fname,
552 rinfo = dict_lookup (zh->reg->matchDict, matchStr);
554 memcpy (sysno, rinfo+1, sizeof(*sysno));
558 logf (LOG_WARN, "Bad match criteria");
569 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T, zh->m_record_type,
570 fname, recordOffset);
571 logf (LOG_WARN, "cannot delete record above (seems new)");
574 if (zh->records_processed < zh->m_file_verbose_limit)
575 logf (LOG_LOG, "add %s %s " PRINTF_OFF_T, zh->m_record_type,
576 fname, recordOffset);
577 rec = rec_new (zh->reg->records);
581 recordAttr = rec_init_attr (zh->reg->zei, rec);
585 dict_insert (zh->reg->matchDict, matchStr, sizeof(*sysno), sysno);
587 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
588 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
590 zh->records_inserted++;
594 /* record already exists */
595 struct recKeys delkeys;
596 struct sortKeys sortKeys;
598 rec = rec_get (zh->reg->records, *sysno);
601 recordAttr = rec_init_attr (zh->reg->zei, rec);
603 if (!force_update && recordAttr->runNumber ==
604 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
606 yaz_log (LOG_LOG, "run number = %d", recordAttr->runNumber);
607 yaz_log (LOG_LOG, "skipped %s %s " PRINTF_OFF_T,
608 zh->m_record_type, fname, recordOffset);
609 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
614 delkeys.buf_used = rec->size[recInfo_delKeys];
615 delkeys.buf = rec->info[recInfo_delKeys];
617 sortKeys.buf_used = rec->size[recInfo_sortKeys];
618 sortKeys.buf = rec->info[recInfo_sortKeys];
620 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
621 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
624 /* record going to be deleted */
625 if (!delkeys.buf_used)
627 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
628 zh->m_record_type, fname, recordOffset);
629 logf (LOG_WARN, "cannot delete file above, storeKeys false");
633 if (zh->records_processed < zh->m_file_verbose_limit)
634 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
635 zh->m_record_type, fname, recordOffset);
636 zh->records_deleted++;
638 dict_delete (zh->reg->matchDict, matchStr);
639 rec_del (zh->reg->records, &rec);
647 /* record going to be updated */
648 if (!delkeys.buf_used)
650 logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
651 zh->m_record_type, fname, recordOffset);
652 logf (LOG_WARN, "cannot update file above, storeKeys false");
656 if (zh->records_processed < zh->m_file_verbose_limit)
657 logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
658 zh->m_record_type, fname, recordOffset);
659 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
660 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
661 zh->records_updated++;
665 /* update file type */
666 xfree (rec->info[recInfo_fileType]);
667 rec->info[recInfo_fileType] =
668 rec_strdup (zh->m_record_type, &rec->size[recInfo_fileType]);
670 /* update filename */
671 xfree (rec->info[recInfo_filename]);
672 rec->info[recInfo_filename] =
673 rec_strdup (fname, &rec->size[recInfo_filename]);
675 /* update delete keys */
676 xfree (rec->info[recInfo_delKeys]);
677 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
679 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
680 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
681 zh->reg->keys.buf = NULL;
682 zh->reg->keys.buf_max = 0;
686 rec->info[recInfo_delKeys] = NULL;
687 rec->size[recInfo_delKeys] = 0;
690 /* update sort keys */
691 xfree (rec->info[recInfo_sortKeys]);
693 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
694 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
695 zh->reg->sortKeys.buf = NULL;
696 zh->reg->sortKeys.buf_max = 0;
698 /* save file size of original record */
699 zebraExplain_recordBytesIncrement (zh->reg->zei,
700 - recordAttr->recordSize);
701 recordAttr->recordSize = fi->file_moffset - recordOffset;
702 if (!recordAttr->recordSize)
703 recordAttr->recordSize = fi->file_max - recordOffset;
704 zebraExplain_recordBytesIncrement (zh->reg->zei,
705 recordAttr->recordSize);
707 /* set run-number for this record */
708 recordAttr->runNumber = zebraExplain_runNumberIncrement (zh->reg->zei,
711 /* update store data */
712 xfree (rec->info[recInfo_storeData]);
713 if (zh->m_store_data)
715 rec->size[recInfo_storeData] = recordAttr->recordSize;
716 rec->info[recInfo_storeData] = (char *)
717 xmalloc (recordAttr->recordSize);
718 if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
720 logf (LOG_ERRNO|LOG_FATAL, "seek to " PRINTF_OFF_T " in %s",
721 recordOffset, fname);
724 if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
725 < recordAttr->recordSize)
727 logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
728 recordAttr->recordSize, fname);
734 rec->info[recInfo_storeData] = NULL;
735 rec->size[recInfo_storeData] = 0;
737 /* update database name */
738 xfree (rec->info[recInfo_databaseName]);
739 rec->info[recInfo_databaseName] =
740 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
743 recordAttr->recordOffset = recordOffset;
745 /* commit this record */
746 rec_put (zh->reg->records, &rec);
751 int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
758 struct file_read_info *fi;
759 const char *original_record_type = 0;
761 if (!zh->m_group || !*zh->m_group)
764 sprintf (gprefix, "%s.", zh->m_group);
766 logf (LOG_DEBUG, "fileExtract %s", fname);
768 /* determine file extension */
770 for (i = strlen(fname); --i >= 0; )
773 else if (fname[i] == '.')
775 strcpy (ext, fname+i+1);
778 /* determine file type - depending on extension */
779 yaz_log(LOG_LOG, "recordType 1=%s", zh->m_record_type ?
780 zh->m_record_type : "<none>");
781 original_record_type = zh->m_record_type;
782 if (!zh->m_record_type)
784 sprintf (ext_res, "%srecordType.%s", gprefix, ext);
785 zh->m_record_type = res_get (zh->res, ext_res);
787 yaz_log(LOG_LOG, "recordType 2=%s", zh->m_record_type ?
788 zh->m_record_type : "<none>");
789 if (!zh->m_record_type)
791 if (zh->records_processed < zh->m_file_verbose_limit)
792 logf (LOG_LOG, "? %s", fname);
795 /* determine match criteria */
796 if (!zh->m_record_id)
798 sprintf (ext_res, "%srecordId.%s", gprefix, ext);
799 zh->m_record_id = res_get (zh->res, ext_res);
802 if (sysno && deleteFlag)
808 if (zh->path_reg && !yaz_is_abspath (fname))
810 strcpy (full_rep, zh->path_reg);
811 strcat (full_rep, "/");
812 strcat (full_rep, fname);
815 strcpy (full_rep, fname);
818 if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
820 logf (LOG_WARN|LOG_ERRNO, "open %s", full_rep);
821 zh->m_record_type = original_record_type;
825 fi = file_read_start (fd);
829 r = file_extract_record (zh, sysno, fname, deleteFlag, fi, 1);
830 } while (r && !sysno && fi->file_more);
834 zh->m_record_type = original_record_type;
839 If sysno is provided, then it's used to identify the reocord.
840 If not, and match_criteria is provided, then sysno is guessed
841 If not, and a record is provided, then sysno is got from there
844 int buffer_extract_record (ZebraHandle zh,
845 const char *buf, size_t buf_size,
848 const char *recordType,
850 const char *match_criteria,
855 RecordAttr *recordAttr;
856 struct recExtractCtrl extractCtrl;
858 const char *matchStr = 0;
859 RecType recType = NULL;
863 long recordOffset = 0;
864 struct zebra_fetch_control fc;
865 const char *pr_fname = fname; /* filename to print .. */
868 pr_fname = "<no file>"; /* make it printable if file is omitted */
871 fc.record_int_buf = buf;
872 fc.record_int_len = buf_size;
873 fc.record_int_pos = 0;
875 fc.record_offset = 0;
877 extractCtrl.offset = 0;
878 extractCtrl.readf = zebra_record_int_read;
879 extractCtrl.seekf = zebra_record_int_seek;
880 extractCtrl.tellf = zebra_record_int_tell;
881 extractCtrl.endf = zebra_record_int_end;
882 extractCtrl.fh = &fc;
884 zh->reg->keys.buf_used = 0;
885 zh->reg->keys.prevAttrUse = -1;
886 zh->reg->keys.prevAttrSet = -1;
887 zh->reg->keys.prevSeqNo = 0;
888 zh->reg->sortKeys.buf_used = 0;
890 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
892 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
893 zh->m_explain_database))
897 if (recordType && *recordType) {
898 logf (LOG_DEBUG, "Record type explicitly specified: %s", recordType);
899 recType = recType_byName (zh->reg->recTypes, recordType, subType,
902 if (!(zh->m_record_type)) {
903 logf (LOG_WARN, "No such record type defined");
906 logf (LOG_DEBUG, "Get record type from rgroup: %s",zh->m_record_type);
907 recType = recType_byName (zh->reg->recTypes, zh->m_record_type, subType,
909 recordType = zh->m_record_type;
913 logf (LOG_WARN, "No such record type: %s", zh->m_record_type);
917 extractCtrl.subType = subType;
918 extractCtrl.init = extract_init;
919 extractCtrl.tokenAdd = extract_token_add;
920 extractCtrl.schemaAdd = extract_schema_add;
921 extractCtrl.dh = zh->reg->dh;
922 extractCtrl.handle = zh;
923 extractCtrl.zebra_maps = zh->reg->zebra_maps;
924 extractCtrl.flagShowRecords = 0;
925 for (i = 0; i<256; i++)
927 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
928 extractCtrl.seqno[i] = 1;
930 extractCtrl.seqno[i] = 0;
933 r = (*recType->extract)(clientData, &extractCtrl);
935 if (r == RECCTRL_EXTRACT_EOF)
937 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
939 /* error occured during extraction ... */
940 yaz_log (LOG_WARN, "extract error: generic");
943 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
945 /* error occured during extraction ... */
946 yaz_log (LOG_WARN, "extract error: no such filter");
949 if (zh->reg->keys.buf_used == 0)
951 /* the extraction process returned no information - the record
952 is probably empty - unless flagShowRecords is in use */
955 logf (LOG_WARN, "No keys generated for record");
956 logf (LOG_WARN, " The file is probably empty");
964 if (match_criteria && *match_criteria) {
965 matchStr = match_criteria;
967 if (zh->m_record_id && *zh->m_record_id) {
968 matchStr = fileMatchStr (zh, &zh->reg->keys, pr_fname,
972 logf (LOG_WARN, "Bad match criteria (recordID)");
978 rinfo = dict_lookup (zh->reg->matchDict, matchStr);
980 memcpy (sysno, rinfo+1, sizeof(*sysno));
989 logf (LOG_LOG, "delete %s %s %ld", recordType,
990 pr_fname, (long) recordOffset);
991 logf (LOG_WARN, "cannot delete record above (seems new)");
994 logf (LOG_LOG, "add %s %s %ld", recordType, pr_fname,
995 (long) recordOffset);
996 rec = rec_new (zh->reg->records);
1000 recordAttr = rec_init_attr (zh->reg->zei, rec);
1004 dict_insert (zh->reg->matchDict, matchStr,
1005 sizeof(*sysno), sysno);
1007 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
1008 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
1010 zh->records_inserted++;
1014 /* record already exists */
1015 struct recKeys delkeys;
1016 struct sortKeys sortKeys;
1018 if (!allow_update) {
1019 logf (LOG_LOG, "skipped %s %s %ld",
1020 recordType, pr_fname, (long) recordOffset);
1025 rec = rec_get (zh->reg->records, *sysno);
1028 recordAttr = rec_init_attr (zh->reg->zei, rec);
1030 if (!force_update) {
1031 if (recordAttr->runNumber ==
1032 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
1034 logf (LOG_LOG, "skipped %s %s %ld", recordType,
1035 pr_fname, (long) recordOffset);
1036 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
1043 delkeys.buf_used = rec->size[recInfo_delKeys];
1044 delkeys.buf = rec->info[recInfo_delKeys];
1046 sortKeys.buf_used = rec->size[recInfo_sortKeys];
1047 sortKeys.buf = rec->info[recInfo_sortKeys];
1049 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
1050 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
1053 /* record going to be deleted */
1054 if (!delkeys.buf_used)
1056 logf (LOG_LOG, "delete %s %s %ld", recordType,
1057 pr_fname, (long) recordOffset);
1058 logf (LOG_WARN, "cannot delete file above, storeKeys false");
1062 logf (LOG_LOG, "delete %s %s %ld", recordType,
1063 pr_fname, (long) recordOffset);
1064 zh->records_deleted++;
1066 dict_delete (zh->reg->matchDict, matchStr);
1067 rec_del (zh->reg->records, &rec);
1075 /* record going to be updated */
1076 if (!delkeys.buf_used)
1078 logf (LOG_LOG, "update %s %s %ld", recordType,
1079 pr_fname, (long) recordOffset);
1080 logf (LOG_WARN, "cannot update file above, storeKeys false");
1084 logf (LOG_LOG, "update %s %s %ld", recordType,
1085 pr_fname, (long) recordOffset);
1086 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
1087 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
1088 zh->records_updated++;
1092 /* update file type */
1093 xfree (rec->info[recInfo_fileType]);
1094 rec->info[recInfo_fileType] =
1095 rec_strdup (recordType, &rec->size[recInfo_fileType]);
1097 /* update filename */
1098 xfree (rec->info[recInfo_filename]);
1099 rec->info[recInfo_filename] =
1100 rec_strdup (fname, &rec->size[recInfo_filename]);
1102 /* update delete keys */
1103 xfree (rec->info[recInfo_delKeys]);
1104 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
1106 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1107 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1108 zh->reg->keys.buf = NULL;
1109 zh->reg->keys.buf_max = 0;
1113 rec->info[recInfo_delKeys] = NULL;
1114 rec->size[recInfo_delKeys] = 0;
1117 /* update sort keys */
1118 xfree (rec->info[recInfo_sortKeys]);
1120 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1121 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1122 zh->reg->sortKeys.buf = NULL;
1123 zh->reg->sortKeys.buf_max = 0;
1125 /* save file size of original record */
1126 zebraExplain_recordBytesIncrement (zh->reg->zei,
1127 - recordAttr->recordSize);
1129 recordAttr->recordSize = fi->file_moffset - recordOffset;
1130 if (!recordAttr->recordSize)
1131 recordAttr->recordSize = fi->file_max - recordOffset;
1133 recordAttr->recordSize = buf_size;
1135 zebraExplain_recordBytesIncrement (zh->reg->zei,
1136 recordAttr->recordSize);
1138 /* set run-number for this record */
1139 recordAttr->runNumber =
1140 zebraExplain_runNumberIncrement (zh->reg->zei, 0);
1142 /* update store data */
1143 xfree (rec->info[recInfo_storeData]);
1144 if (zh->m_store_data)
1146 rec->size[recInfo_storeData] = recordAttr->recordSize;
1147 rec->info[recInfo_storeData] = (char *)
1148 xmalloc (recordAttr->recordSize);
1149 memcpy (rec->info[recInfo_storeData], buf, recordAttr->recordSize);
1153 rec->info[recInfo_storeData] = NULL;
1154 rec->size[recInfo_storeData] = 0;
1156 /* update database name */
1157 xfree (rec->info[recInfo_databaseName]);
1158 rec->info[recInfo_databaseName] =
1159 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
1162 recordAttr->recordOffset = recordOffset;
1164 /* commit this record */
1165 rec_put (zh->reg->records, &rec);
1170 int explain_extract (void *handle, Record rec, data1_node *n)
1172 ZebraHandle zh = (ZebraHandle) handle;
1173 struct recExtractCtrl extractCtrl;
1176 if (zebraExplain_curDatabase (zh->reg->zei,
1177 rec->info[recInfo_databaseName]))
1180 if (zebraExplain_newDatabase (zh->reg->zei,
1181 rec->info[recInfo_databaseName], 0))
1185 zh->reg->keys.buf_used = 0;
1186 zh->reg->keys.prevAttrUse = -1;
1187 zh->reg->keys.prevAttrSet = -1;
1188 zh->reg->keys.prevSeqNo = 0;
1189 zh->reg->sortKeys.buf_used = 0;
1191 extractCtrl.init = extract_init;
1192 extractCtrl.tokenAdd = extract_token_add;
1193 extractCtrl.schemaAdd = extract_schema_add;
1194 extractCtrl.dh = zh->reg->dh;
1195 for (i = 0; i<256; i++)
1196 extractCtrl.seqno[i] = 0;
1197 extractCtrl.zebra_maps = zh->reg->zebra_maps;
1198 extractCtrl.flagShowRecords = 0;
1199 extractCtrl.handle = handle;
1202 grs_extract_tree(&extractCtrl, n);
1204 if (rec->size[recInfo_delKeys])
1206 struct recKeys delkeys;
1207 struct sortKeys sortkeys;
1209 delkeys.buf_used = rec->size[recInfo_delKeys];
1210 delkeys.buf = rec->info[recInfo_delKeys];
1212 sortkeys.buf_used = rec->size[recInfo_sortKeys];
1213 sortkeys.buf = rec->info[recInfo_sortKeys];
1215 extract_flushSortKeys (zh, rec->sysno, 0, &sortkeys);
1216 extract_flushRecordKeys (zh, rec->sysno, 0, &delkeys);
1218 extract_flushRecordKeys (zh, rec->sysno, 1, &zh->reg->keys);
1219 extract_flushSortKeys (zh, rec->sysno, 1, &zh->reg->sortKeys);
1221 xfree (rec->info[recInfo_delKeys]);
1222 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1223 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1224 zh->reg->keys.buf = NULL;
1225 zh->reg->keys.buf_max = 0;
1227 xfree (rec->info[recInfo_sortKeys]);
1228 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1229 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1230 zh->reg->sortKeys.buf = NULL;
1231 zh->reg->sortKeys.buf_max = 0;
1236 void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
1237 int cmd, struct recKeys *reckeys)
1241 unsigned char attrSet = (unsigned char) -1;
1242 unsigned short attrUse = (unsigned short) -1;
1247 ZebraExplainInfo zei = zh->reg->zei;
1249 if (!zh->reg->key_buf)
1251 int mem= 1024*1024* atoi( res_get_def( zh->res, "memmax", "8"));
1254 logf(LOG_WARN, "Invalid memory setting, using default 8 MB");
1257 /* FIXME: That "8" should be in a default settings include */
1258 /* not hard-coded here! -H */
1259 zh->reg->key_buf = (char**) xmalloc (mem);
1260 zh->reg->ptr_top = mem/sizeof(char*);
1262 zh->reg->key_buf_used = 0;
1263 zh->reg->key_file_no = 0;
1265 zebraExplain_recordCountIncrement (zei, cmd ? 1 : -1);
1266 while (off < reckeys->buf_used)
1268 const char *src = reckeys->buf + off;
1277 memcpy (&ch, src, sizeof(ch));
1283 memcpy (&attrSet, src, sizeof(attrSet));
1284 src += sizeof(attrSet);
1288 memcpy (&attrUse, src, sizeof(attrUse));
1289 src += sizeof(attrUse);
1292 if (zh->reg->key_buf_used + 1024 >
1293 (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
1294 extract_flushWriteKeys (zh,0);
1295 assert(zh->reg->ptr_i >= 0);
1297 assert(zh->reg->ptr_i > 0);
1298 (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
1299 (char*)zh->reg->key_buf + zh->reg->key_buf_used;
1302 ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1304 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1307 zh->reg->key_buf_used +=
1308 key_SU_encode (ch,((char*)zh->reg->key_buf) +
1309 zh->reg->key_buf_used);
1312 ((char*)zh->reg->key_buf) [(zh->reg->key_buf_used)++] = *src++;
1314 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = '\0';
1315 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = cmd;
1318 seqno += ((lead>>2) & 15)-1;
1321 memcpy (&seqno, src, sizeof(seqno));
1322 src += sizeof(seqno);
1326 memcpy ((char*)zh->reg->key_buf + zh->reg->key_buf_used, &key, sizeof(key));
1327 (zh->reg->key_buf_used) += sizeof(key);
1328 off = src - reckeys->buf;
1330 assert (off == reckeys->buf_used);
1333 void extract_flushWriteKeys (ZebraHandle zh, int final)
1334 /* optimizing: if final=1, and no files written yet */
1335 /* push the keys directly to merge, sidestepping the */
1336 /* temp file altogether. Speeds small updates */
1339 char out_fname[200];
1341 struct encode_info encode_info;
1342 int ptr_i = zh->reg->ptr_i;
1347 if (!zh->reg->key_buf || ptr_i <= 0)
1349 logf (LOG_DEBUG, " nothing to flush section=%d buf=%p i=%d",
1350 zh->reg->key_file_no, zh->reg->key_buf, ptr_i);
1351 logf (LOG_DEBUG, " buf=%p ",
1353 logf (LOG_DEBUG, " ptr=%d ",zh->reg->ptr_i);
1354 logf (LOG_DEBUG, " reg=%p ",zh->reg);
1359 (zh->reg->key_file_no)++;
1360 logf (LOG_LOG, "sorting section %d", (zh->reg->key_file_no));
1361 logf (LOG_DEBUG, " sort_buff at %p n=%d",
1362 zh->reg->key_buf + zh->reg->ptr_top - ptr_i,ptr_i);
1364 qsort (zh->reg->key_buf + zh->reg->ptr_top - ptr_i, ptr_i,
1365 sizeof(char*), key_qsort_compare);
1367 /* zebra.cfg: tempfiles:
1368 Y: always use temp files (old way)
1369 A: use temp files, if more than one (auto)
1370 = if this is both the last and the first
1371 N: never bother with temp files (new) */
1373 temp_policy=toupper(res_get_def(zh->res,"tempfiles","auto")[0]);
1374 if (temp_policy != 'Y' && temp_policy != 'N' && temp_policy != 'A') {
1375 logf (LOG_WARN, "Illegal tempfiles setting '%c'. using 'Auto' ",
1380 if ( ( temp_policy =='N' ) || /* always from memory */
1381 ( ( temp_policy =='A' ) && /* automatic */
1382 (zh->reg->key_file_no == 1) && /* this is first time */
1383 (final) ) ) /* and last (=only) time */
1384 { /* go directly from memory */
1385 zh->reg->key_file_no =0; /* signal not to read files */
1386 zebra_index_merge(zh);
1388 zh->reg->key_buf_used = 0;
1392 /* Not doing directly from memory, write into a temp file */
1393 extract_get_fname_tmp (zh, out_fname, zh->reg->key_file_no);
1395 if (!(outf = fopen (out_fname, "wb")))
1397 logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
1400 logf (LOG_LOG, "writing section %d", zh->reg->key_file_no);
1401 prevcp = cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1403 encode_key_init (&encode_info);
1404 encode_key_write (cp, &encode_info, outf);
1408 cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1409 if (strcmp (cp, prevcp))
1411 encode_key_flush ( &encode_info, outf);
1412 encode_key_init (&encode_info);
1413 encode_key_write (cp, &encode_info, outf);
1417 encode_key_write (cp + strlen(cp), &encode_info, outf);
1419 encode_key_flush ( &encode_info, outf);
1421 qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_x_compare);
1422 extract_get_fname_tmp (out_fname, key_file_no);
1424 if (!(outf = fopen (out_fname, "wb")))
1426 logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
1429 logf (LOG_LOG, "writing section %d", key_file_no);
1431 prevcp = key_buf[ptr_top-i];
1433 if (!--i || strcmp (prevcp, key_buf[ptr_top-i]))
1435 key_y_len = strlen(prevcp)+1;
1437 logf (LOG_LOG, "key_y_len: %2d %02x %02x %s",
1438 key_y_len, prevcp[0], prevcp[1], 2+prevcp);
1440 qsort (key_buf + ptr_top-ptr_i, ptr_i - i,
1441 sizeof(char*), key_y_compare);
1442 cp = key_buf[ptr_top-ptr_i];
1444 encode_key_init (&encode_info);
1445 encode_key_write (cp, &encode_info, outf);
1448 cp = key_buf[ptr_top-ptr_i];
1449 encode_key_write (cp+key_y_len, &encode_info, outf);
1451 encode_key_flush ( &encode_info, outf);
1454 prevcp = key_buf[ptr_top-ptr_i];
1459 logf (LOG_FATAL|LOG_ERRNO, "fclose %s", out_fname);
1462 logf (LOG_LOG, "finished section %d", zh->reg->key_file_no);
1464 zh->reg->key_buf_used = 0;
1467 void extract_add_index_string (RecWord *p, const char *string,
1471 unsigned char attrSet;
1472 unsigned short attrUse;
1475 int *pseqno = &p->seqno;
1476 ZebraHandle zh = p->extractCtrl->handle;
1477 ZebraExplainInfo zei = zh->reg->zei;
1478 struct recKeys *keys = &zh->reg->keys;
1480 if (keys->buf_used+1024 > keys->buf_max)
1484 b = (char *) xmalloc (keys->buf_max += 128000);
1485 if (keys->buf_used > 0)
1486 memcpy (b, keys->buf, keys->buf_used);
1490 dst = keys->buf + keys->buf_used;
1492 /* leader byte is encoded as follows:
1493 bit 0 : 1 if attrset is unchanged; 0 if attrset is changed
1494 bit 1 : 1 if attruse is unchanged; 0 if attruse is changed
1496 attrSet = p->attrSet;
1497 if (keys->buf_used > 0 && keys->prevAttrSet == attrSet)
1500 keys->prevAttrSet = attrSet;
1501 attrUse = p->attrUse;
1502 if (keys->buf_used > 0 && keys->prevAttrUse == attrUse)
1505 keys->prevAttrUse = attrUse;
1507 diff = 1 + *pseqno - keys->prevSeqNo;
1508 if (diff >= 1 && diff <= 15)
1509 lead |= (diff << 2);
1513 keys->prevSeqNo = *pseqno;
1520 int ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1523 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1524 yaz_log (LOG_DEBUG, "addSU set=%d use=%d SU=%d",
1525 attrSet, attrUse, ch);
1528 memcpy (dst, &ch, sizeof(ch));
1534 memcpy (dst, &attrSet, sizeof(attrSet));
1535 dst += sizeof(attrSet);
1539 memcpy (dst, &attrUse, sizeof(attrUse));
1540 dst += sizeof(attrUse);
1543 *dst++ = p->reg_type;
1544 memcpy (dst, string, length);
1550 memcpy (dst, pseqno, sizeof(*pseqno));
1551 dst += sizeof(*pseqno);
1553 keys->buf_used = dst - keys->buf;
1556 static void extract_add_sort_string (RecWord *p, const char *string,
1559 ZebraHandle zh = p->extractCtrl->handle;
1560 struct sortKeys *sk = &zh->reg->sortKeys;
1563 while (off < sk->buf_used)
1567 off += key_SU_decode(&set, sk->buf + off);
1568 off += key_SU_decode(&use, sk->buf + off);
1569 off += key_SU_decode(&slen, sk->buf + off);
1571 if (p->attrSet == set && p->attrUse == use)
1574 assert (off == sk->buf_used);
1576 if (sk->buf_used + IT_MAX_WORD > sk->buf_max)
1580 b = (char *) xmalloc (sk->buf_max += 128000);
1581 if (sk->buf_used > 0)
1582 memcpy (b, sk->buf, sk->buf_used);
1586 off += key_SU_encode(p->attrSet, sk->buf + off);
1587 off += key_SU_encode(p->attrUse, sk->buf + off);
1588 off += key_SU_encode(length, sk->buf + off);
1589 memcpy (sk->buf + off, string, length);
1590 sk->buf_used = off + length;
1593 void extract_add_string (RecWord *p, const char *string, int length)
1595 assert (length > 0);
1596 if (zebra_maps_is_sort (p->zebra_maps, p->reg_type))
1597 extract_add_sort_string (p, string, length);
1599 extract_add_index_string (p, string, length);
1602 static void extract_add_incomplete_field (RecWord *p)
1604 const char *b = p->string;
1605 int remain = p->length;
1606 const char **map = 0;
1609 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1613 char buf[IT_MAX_WORD+1];
1617 while (map && *map && **map == *CHR_SPACE)
1619 remain = p->length - (b - p->string);
1621 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1628 while (map && *map && **map != *CHR_SPACE)
1630 const char *cp = *map;
1632 while (i < IT_MAX_WORD && *cp)
1634 remain = p->length - (b - p->string);
1636 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1642 extract_add_string (p, buf, i);
1647 static void extract_add_complete_field (RecWord *p)
1649 const char *b = p->string;
1650 char buf[IT_MAX_WORD+1];
1651 const char **map = 0;
1652 int i = 0, remain = p->length;
1655 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b, remain);
1657 while (remain > 0 && i < IT_MAX_WORD)
1659 while (map && *map && **map == *CHR_SPACE)
1661 remain = p->length - (b - p->string);
1663 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1670 if (i && i < IT_MAX_WORD)
1671 buf[i++] = *CHR_SPACE;
1672 while (map && *map && **map != *CHR_SPACE)
1674 const char *cp = *map;
1676 if (i >= IT_MAX_WORD)
1678 while (i < IT_MAX_WORD && *cp)
1680 remain = p->length - (b - p->string);
1682 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b,
1690 extract_add_string (p, buf, i);
1693 void extract_token_add (RecWord *p)
1697 yaz_log (LOG_LOG, "token_add "
1698 "reg_type=%c attrSet=%d attrUse=%d seqno=%d s=%.*s",
1699 p->reg_type, p->attrSet, p->attrUse, p->seqno, p->length,
1702 if ((wrbuf = zebra_replace(p->zebra_maps, p->reg_type, 0,
1703 p->string, p->length)))
1705 p->string = wrbuf_buf(wrbuf);
1706 p->length = wrbuf_len(wrbuf);
1708 if (zebra_maps_is_complete (p->zebra_maps, p->reg_type))
1709 extract_add_complete_field (p);
1711 extract_add_incomplete_field(p);
1714 void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
1716 ZebraHandle zh = (ZebraHandle) (p->handle);
1717 zebraExplain_addSchema (zh->reg->zei, oid);
1720 void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
1721 int cmd, struct sortKeys *sk)
1723 SortIdx sortIdx = zh->reg->sortIdx;
1726 sortIdx_sysno (sortIdx, sysno);
1728 while (off < sk->buf_used)
1732 off += key_SU_decode(&set, sk->buf + off);
1733 off += key_SU_decode(&use, sk->buf + off);
1734 off += key_SU_decode(&slen, sk->buf + off);
1736 sortIdx_type(sortIdx, use);
1738 sortIdx_add(sortIdx, sk->buf + off, slen);
1740 sortIdx_add(sortIdx, "", 1);
1745 void encode_key_init (struct encode_info *i)
1756 char *encode_key_int (int d, char *bp)
1760 else if (d <= 16383)
1762 *bp++ = 64 + (d>>8);
1765 else if (d <= 4194303)
1767 *bp++ = 128 + (d>>16);
1768 *bp++ = (d>>8) & 255;
1773 *bp++ = 192 + (d>>24);
1774 *bp++ = (d>>16) & 255;
1775 *bp++ = (d>>8) & 255;
1783 /* this is the old encode_key_write
1784 * may be deleted once we are confident that the new works
1787 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1792 while ((*bp++ = *k++))
1794 memcpy (&key, k+1, sizeof(struct it_key));
1795 bp = encode_key_int ( (key.sysno - i->sysno) * 2 + *k, bp);
1796 if (i->sysno != key.sysno)
1798 i->sysno = key.sysno;
1801 else if (!i->seqno && !key.seqno && i->cmd == *k)
1803 bp = encode_key_int (key.seqno - i->seqno, bp);
1804 i->seqno = key.seqno;
1806 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1808 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
1813 void encode_key_flush (struct encode_info *i, FILE *outf)
1814 { /* dummy routine */
1819 /* new encode_key_write
1820 * The idea is to buffer one more key, and compare them
1821 * If we are going to delete and insert the same key,
1822 * we may as well not bother. Should make a difference in
1823 * updates with small modifications (appending to a mbox)
1825 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1830 if (*k) /* first time for new key */
1833 while ((*bp++ = *k++))
1835 i->keylen= bp - i->buf -1;
1836 assert(i->keylen+1+sizeof(struct it_key) < ENCODE_BUFLEN);
1840 bp=i->buf + i->keylen;
1845 memcpy (&key, k+1, sizeof(struct it_key));
1846 if (0==i->prevsys) /* no previous filter, fill up */
1848 i->prevsys=key.sysno;
1849 i->prevseq=key.seqno;
1852 else if ( (i->prevsys==key.sysno) &&
1853 (i->prevseq==key.seqno) &&
1855 { /* same numbers, diff cmd, they cancel out */
1859 { /* different stuff, write previous, move buf */
1860 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
1861 if (i->sysno != i->prevsys)
1863 i->sysno = i->prevsys;
1866 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
1868 return; /* ??? Filters some sort of duplicates away */
1869 /* ??? Can this ever happen -H 15oct02 */
1871 bp = encode_key_int (i->prevseq - i->seqno, bp);
1872 i->seqno = i->prevseq;
1873 i->cmd = i->prevcmd;
1874 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1876 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
1879 i->keylen=0; /* ok, it's written, forget it */
1880 i->prevsys=key.sysno;
1881 i->prevseq=key.seqno;
1886 void encode_key_flush (struct encode_info *i, FILE *outf)
1887 { /* flush the last key from i */
1888 char *bp =i->buf + i->keylen;
1891 return; /* nothing to flush */
1894 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
1895 if (i->sysno != i->prevsys)
1897 i->sysno = i->prevsys;
1900 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
1902 return; /* ??? Filters some sort of duplicates away */
1903 /* ??? Can this ever happen -H 15oct02 */
1905 bp = encode_key_int (i->prevseq - i->seqno, bp);
1906 i->seqno = i->prevseq;
1907 i->cmd = i->prevcmd;
1908 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1910 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
1913 i->keylen=0; /* ok, it's written, forget it */
1914 i->prevsys=0; /* forget the values too */