1 /* $Id: extract.c,v 1.159 2004-08-06 13:36:22 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 logf (LOG_LOG, "Records: %7d i/u/d %d/%d/%d",
76 zh->records_processed, zh->records_inserted, zh->records_updated,
81 static void extract_init (struct recExtractCtrl *p, RecWord *w)
83 w->zebra_maps = p->zebra_maps;
85 w->attrSet = VAL_BIB1;
91 static const char **searchRecordKey (ZebraHandle zh,
92 struct recKeys *reckeys,
93 int attrSetS, int attrUseS)
96 /* #error searchRecordKey does not work yet in this mode.. */
97 static const char *ws[32];
98 void *decode_handle = iscz1_start();
104 for (i = 0; i<32; i++)
107 while (off < reckeys->buf_used)
109 const char *src = reckeys->buf + off;
111 char *dst = (char*) &key;
112 int attrSet, attrUse;
114 iscz1_decode(decode_handle, &dst, &src);
115 assert(key.len < 4 && key.len > 2);
117 attrSet = (int) key.mem[0];
118 attrUse = (int) key.mem[1];
119 seqno = (int) key.mem[2];
121 if (attrUseS == attrUse && attrSetS == attrSet)
127 woff = seqno - startSeq;
128 if (woff >= 0 && woff < 31)
134 off = src - reckeys->buf;
136 iscz1_stop(decode_handle);
137 assert (off == reckeys->buf_used);
140 static const char *ws[32];
152 for (i = 0; i<32; i++)
156 chS = zebraExplain_lookupSU (zh->reg->zei, attrSetS, attrUseS);
160 while (off < reckeys->buf_used)
163 const char *src = reckeys->buf + off;
171 memcpy (&ch, src, sizeof(ch));
177 memcpy (&attrSet, src, sizeof(attrSet));
178 src += sizeof(attrSet);
182 memcpy (&attrUse, src, sizeof(attrUse));
183 src += sizeof(attrUse);
190 seqno += ((lead>>2) & 15)-1;
193 memcpy (&seqno, src, sizeof(seqno));
194 src += sizeof(seqno);
200 attrUseS == attrUse && attrSetS == attrSet
209 woff = seqno - startSeq;
210 if (woff >= 0 && woff < 31)
214 off = src - reckeys->buf;
216 assert (off == reckeys->buf_used);
221 struct file_read_info {
222 off_t file_max; /* maximum offset so far */
223 off_t file_offset; /* current offset */
224 off_t file_moffset; /* offset of rec/rec boundary */
231 static struct file_read_info *file_read_start (int fd)
233 struct file_read_info *fi = (struct file_read_info *)
234 xmalloc (sizeof(*fi));
238 fi->file_moffset = 0;
244 static void file_read_stop (struct file_read_info *fi)
249 static off_t file_seek (void *handle, off_t offset)
251 struct file_read_info *p = (struct file_read_info *) handle;
252 p->file_offset = offset;
255 return lseek (p->fd, offset, SEEK_SET);
258 static off_t file_tell (void *handle)
260 struct file_read_info *p = (struct file_read_info *) handle;
261 return p->file_offset;
264 static int file_read (void *handle, char *buf, size_t count)
266 struct file_read_info *p = (struct file_read_info *) handle;
272 if (r > p->sdrmax - p->file_offset)
273 r = p->sdrmax - p->file_offset;
275 memcpy (buf, p->sdrbuf + p->file_offset, r);
278 r = read (fd, buf, count);
282 if (p->file_offset > p->file_max)
283 p->file_max = p->file_offset;
288 static void file_begin (void *handle)
290 struct file_read_info *p = (struct file_read_info *) handle;
292 p->file_offset = p->file_moffset;
293 if (!p->sdrbuf && p->file_moffset)
294 lseek (p->fd, p->file_moffset, SEEK_SET);
298 static void file_end (void *handle, off_t offset)
300 struct file_read_info *p = (struct file_read_info *) handle;
302 assert (p->file_more == 0);
304 p->file_moffset = offset;
307 static char *fileMatchStr (ZebraHandle zh,
308 struct recKeys *reckeys,
309 const char *fname, const char *spec)
311 static char dstBuf[2048]; /* static here ??? */
313 const char *s = spec;
314 static const char **w;
318 while (*s == ' ' || *s == '\t')
324 char attset_str[64], attname_str[64];
325 data1_attset *attset;
328 int attSet = 1, attUse = 1;
332 for (i = 0; *s && *s != ',' && *s != ')'; s++)
334 attset_str[i++] = *s;
335 attset_str[i] = '\0';
340 for (i = 0; *s && *s != ')'; s++)
342 attname_str[i++] = *s;
343 attname_str[i] = '\0';
346 if ((attset = data1_get_attset (zh->reg->dh, attset_str)))
349 attSet = attset->reference;
350 att = data1_getattbyname(zh->reg->dh, attset, attname_str);
354 attUse = atoi (attname_str);
356 w = searchRecordKey (zh, reckeys, attSet, attUse);
361 for (i = 0; i<32; i++)
366 logf (LOG_WARN, "Missing ) in match criteria %s in group %s",
367 spec, zh->m_group ? zh->m_group : "none");
372 for (i = 0; i<32; i++)
373 if (matchFlag[i] && w[i])
385 logf (LOG_WARN, "Record didn't contain match"
386 " fields in (%s,%s)", attset_str, attname_str);
394 const char *spec_src = NULL;
395 const char *s1 = ++s;
396 while (*s1 && *s1 != ' ' && *s1 != '\t')
402 memcpy (special, s, spec_len);
403 special[spec_len] = '\0';
406 if (!strcmp (special, "group"))
407 spec_src = zh->m_group;
408 else if (!strcmp (special, "database"))
409 spec_src = zh->basenames[0];
410 else if (!strcmp (special, "filename")) {
413 else if (!strcmp (special, "type"))
414 spec_src = zh->m_record_type;
419 strcpy (dst, spec_src);
420 dst += strlen (spec_src);
423 else if (*s == '\"' || *s == '\'')
425 int stopMarker = *s++;
429 while (*s && *s != stopMarker)
432 tmpString[i++] = *s++;
437 strcpy (dst, tmpString);
438 dst += strlen (tmpString);
442 logf (LOG_WARN, "Syntax error in match criteria %s in group %s",
443 spec, zh->m_group ? zh->m_group : "none");
450 logf (LOG_WARN, "No match criteria for record %s in group %s",
451 fname, zh->m_group ? zh->m_group : "none");
458 struct recordLogInfo {
461 struct recordGroup *rGroup;
464 void create_rec_keys_codec(struct recKeys *keys)
468 iscz1_reset(keys->codec_handle);
470 keys->prevAttrUse = -1;
471 keys->prevAttrSet = -1;
476 static int file_extract_record(ZebraHandle zh,
477 SYSNO *sysno, const char *fname,
479 struct file_read_info *fi,
482 RecordAttr *recordAttr;
484 const char *matchStr;
487 off_t recordOffset = 0;
493 recType_byName (zh->reg->recTypes, zh->m_record_type, subType,
496 logf (LOG_WARN, "No such record type: %s", zh->m_record_type);
500 /* announce database */
501 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
503 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
504 zh->m_explain_database))
510 struct recExtractCtrl extractCtrl;
512 /* we are going to read from a file, so prepare the extraction */
515 create_rec_keys_codec(&zh->reg->keys);
517 zh->reg->sortKeys.buf_used = 0;
519 recordOffset = fi->file_moffset;
520 extractCtrl.offset = fi->file_moffset;
521 extractCtrl.readf = file_read;
522 extractCtrl.seekf = file_seek;
523 extractCtrl.tellf = file_tell;
524 extractCtrl.endf = file_end;
526 extractCtrl.subType = subType;
527 extractCtrl.init = extract_init;
528 extractCtrl.tokenAdd = extract_token_add;
529 extractCtrl.schemaAdd = extract_schema_add;
530 extractCtrl.dh = zh->reg->dh;
531 extractCtrl.handle = zh;
532 for (i = 0; i<256; i++)
534 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
535 extractCtrl.seqno[i] = 1;
537 extractCtrl.seqno[i] = 0;
539 extractCtrl.zebra_maps = zh->reg->zebra_maps;
540 extractCtrl.flagShowRecords = !zh->m_flag_rw;
543 printf ("File: %s " PRINTF_OFF_T "\n", fname, recordOffset);
547 sprintf (msg, "%s:" PRINTF_OFF_T , fname, recordOffset);
548 yaz_log_init_prefix2 (msg);
551 r = (*recType->extract)(clientData, &extractCtrl);
553 yaz_log_init_prefix2 (0);
554 if (r == RECCTRL_EXTRACT_EOF)
556 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
558 /* error occured during extraction ... */
560 zh->records_processed < zh->m_file_verbose_limit)
562 logf (LOG_WARN, "fail %s %s " PRINTF_OFF_T, zh->m_record_type,
563 fname, recordOffset);
567 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
569 /* error occured during extraction ... */
571 zh->records_processed < zh->m_file_verbose_limit)
573 logf (LOG_WARN, "no filter for %s %s "
574 PRINTF_OFF_T, zh->m_record_type,
575 fname, recordOffset);
579 if (zh->reg->keys.buf_used == 0)
581 /* the extraction process returned no information - the record
582 is probably empty - unless flagShowRecords is in use */
586 logf (LOG_WARN, "empty %s %s " PRINTF_OFF_T, zh->m_record_type,
587 fname, recordOffset);
592 /* perform match if sysno not known and if match criteria is specified */
599 if (zh->m_record_id && *zh->m_record_id)
603 matchStr = fileMatchStr (zh, &zh->reg->keys, fname,
607 rinfo = dict_lookup (zh->reg->matchDict, matchStr);
610 assert(*rinfo == sizeof(*sysno));
611 memcpy (sysno, rinfo+1, sizeof(*sysno));
616 logf (LOG_WARN, "Bad match criteria");
627 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T, zh->m_record_type,
628 fname, recordOffset);
629 logf (LOG_WARN, "cannot delete record above (seems new)");
632 if (zh->records_processed < zh->m_file_verbose_limit)
633 logf (LOG_LOG, "add %s %s " PRINTF_OFF_T, zh->m_record_type,
634 fname, recordOffset);
635 rec = rec_new (zh->reg->records);
639 recordAttr = rec_init_attr (zh->reg->zei, rec);
643 dict_insert (zh->reg->matchDict, matchStr, sizeof(*sysno), sysno);
645 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
646 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
648 zh->records_inserted++;
652 /* record already exists */
653 struct recKeys delkeys;
654 struct sortKeys sortKeys;
656 rec = rec_get (zh->reg->records, *sysno);
659 recordAttr = rec_init_attr (zh->reg->zei, rec);
661 if (!force_update && recordAttr->runNumber ==
662 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
664 yaz_log (LOG_LOG, "run number = %d", recordAttr->runNumber);
665 yaz_log (LOG_LOG, "skipped %s %s " PRINTF_OFF_T,
666 zh->m_record_type, fname, recordOffset);
667 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
672 delkeys.buf_used = rec->size[recInfo_delKeys];
673 delkeys.buf = rec->info[recInfo_delKeys];
675 sortKeys.buf_used = rec->size[recInfo_sortKeys];
676 sortKeys.buf = rec->info[recInfo_sortKeys];
678 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
679 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
682 /* record going to be deleted */
683 if (!delkeys.buf_used)
685 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
686 zh->m_record_type, fname, recordOffset);
687 logf (LOG_WARN, "cannot delete file above, storeKeys false");
691 if (zh->records_processed < zh->m_file_verbose_limit)
692 logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
693 zh->m_record_type, fname, recordOffset);
694 zh->records_deleted++;
696 dict_delete (zh->reg->matchDict, matchStr);
697 rec_del (zh->reg->records, &rec);
705 /* record going to be updated */
706 if (!delkeys.buf_used)
708 logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
709 zh->m_record_type, fname, recordOffset);
710 logf (LOG_WARN, "cannot update file above, storeKeys false");
714 if (zh->records_processed < zh->m_file_verbose_limit)
715 logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
716 zh->m_record_type, fname, recordOffset);
717 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
718 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
719 zh->records_updated++;
723 /* update file type */
724 xfree (rec->info[recInfo_fileType]);
725 rec->info[recInfo_fileType] =
726 rec_strdup (zh->m_record_type, &rec->size[recInfo_fileType]);
728 /* update filename */
729 xfree (rec->info[recInfo_filename]);
730 rec->info[recInfo_filename] =
731 rec_strdup (fname, &rec->size[recInfo_filename]);
733 /* update delete keys */
734 xfree (rec->info[recInfo_delKeys]);
735 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
737 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
738 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
739 zh->reg->keys.buf = NULL;
740 zh->reg->keys.buf_max = 0;
744 rec->info[recInfo_delKeys] = NULL;
745 rec->size[recInfo_delKeys] = 0;
748 /* update sort keys */
749 xfree (rec->info[recInfo_sortKeys]);
751 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
752 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
753 zh->reg->sortKeys.buf = NULL;
754 zh->reg->sortKeys.buf_max = 0;
756 /* save file size of original record */
757 zebraExplain_recordBytesIncrement (zh->reg->zei,
758 - recordAttr->recordSize);
759 recordAttr->recordSize = fi->file_moffset - recordOffset;
760 if (!recordAttr->recordSize)
761 recordAttr->recordSize = fi->file_max - recordOffset;
762 zebraExplain_recordBytesIncrement (zh->reg->zei,
763 recordAttr->recordSize);
765 /* set run-number for this record */
766 recordAttr->runNumber = zebraExplain_runNumberIncrement (zh->reg->zei,
769 /* update store data */
770 xfree (rec->info[recInfo_storeData]);
771 if (zh->m_store_data)
773 rec->size[recInfo_storeData] = recordAttr->recordSize;
774 rec->info[recInfo_storeData] = (char *)
775 xmalloc (recordAttr->recordSize);
776 if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
778 logf (LOG_ERRNO|LOG_FATAL, "seek to " PRINTF_OFF_T " in %s",
779 recordOffset, fname);
782 if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
783 < recordAttr->recordSize)
785 logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
786 recordAttr->recordSize, fname);
792 rec->info[recInfo_storeData] = NULL;
793 rec->size[recInfo_storeData] = 0;
795 /* update database name */
796 xfree (rec->info[recInfo_databaseName]);
797 rec->info[recInfo_databaseName] =
798 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
801 recordAttr->recordOffset = recordOffset;
803 /* commit this record */
804 rec_put (zh->reg->records, &rec);
809 int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
816 struct file_read_info *fi;
817 const char *original_record_type = 0;
819 if (!zh->m_group || !*zh->m_group)
822 sprintf (gprefix, "%s.", zh->m_group);
824 logf (LOG_DEBUG, "fileExtract %s", fname);
826 /* determine file extension */
828 for (i = strlen(fname); --i >= 0; )
831 else if (fname[i] == '.')
833 strcpy (ext, fname+i+1);
836 /* determine file type - depending on extension */
837 original_record_type = zh->m_record_type;
838 if (!zh->m_record_type)
840 sprintf (ext_res, "%srecordType.%s", gprefix, ext);
841 zh->m_record_type = res_get (zh->res, ext_res);
843 if (!zh->m_record_type)
845 if (zh->records_processed < zh->m_file_verbose_limit)
846 logf (LOG_LOG, "? %s", fname);
849 /* determine match criteria */
850 if (!zh->m_record_id)
852 sprintf (ext_res, "%srecordId.%s", gprefix, ext);
853 zh->m_record_id = res_get (zh->res, ext_res);
856 if (sysno && deleteFlag)
862 if (zh->path_reg && !yaz_is_abspath (fname))
864 strcpy (full_rep, zh->path_reg);
865 strcat (full_rep, "/");
866 strcat (full_rep, fname);
869 strcpy (full_rep, fname);
872 if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
874 logf (LOG_WARN|LOG_ERRNO, "open %s", full_rep);
875 zh->m_record_type = original_record_type;
879 fi = file_read_start (fd);
883 r = file_extract_record (zh, sysno, fname, deleteFlag, fi, 1);
884 } while (r && !sysno && fi->file_more);
888 zh->m_record_type = original_record_type;
893 If sysno is provided, then it's used to identify the reocord.
894 If not, and match_criteria is provided, then sysno is guessed
895 If not, and a record is provided, then sysno is got from there
898 int buffer_extract_record (ZebraHandle zh,
899 const char *buf, size_t buf_size,
902 const char *recordType,
904 const char *match_criteria,
909 RecordAttr *recordAttr;
910 struct recExtractCtrl extractCtrl;
912 const char *matchStr = 0;
913 RecType recType = NULL;
917 long recordOffset = 0;
918 struct zebra_fetch_control fc;
919 const char *pr_fname = fname; /* filename to print .. */
922 pr_fname = "<no file>"; /* make it printable if file is omitted */
925 fc.record_int_buf = buf;
926 fc.record_int_len = buf_size;
927 fc.record_int_pos = 0;
929 fc.record_offset = 0;
931 extractCtrl.offset = 0;
932 extractCtrl.readf = zebra_record_int_read;
933 extractCtrl.seekf = zebra_record_int_seek;
934 extractCtrl.tellf = zebra_record_int_tell;
935 extractCtrl.endf = zebra_record_int_end;
936 extractCtrl.fh = &fc;
938 create_rec_keys_codec(&zh->reg->keys);
940 zh->reg->sortKeys.buf_used = 0;
942 if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
944 if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
945 zh->m_explain_database))
949 if (recordType && *recordType) {
950 logf (LOG_DEBUG, "Record type explicitly specified: %s", recordType);
951 recType = recType_byName (zh->reg->recTypes, recordType, subType,
954 if (!(zh->m_record_type)) {
955 logf (LOG_WARN, "No such record type defined");
958 logf (LOG_DEBUG, "Get record type from rgroup: %s",zh->m_record_type);
959 recType = recType_byName (zh->reg->recTypes, zh->m_record_type, subType,
961 recordType = zh->m_record_type;
965 logf (LOG_WARN, "No such record type: %s", zh->m_record_type);
969 extractCtrl.subType = subType;
970 extractCtrl.init = extract_init;
971 extractCtrl.tokenAdd = extract_token_add;
972 extractCtrl.schemaAdd = extract_schema_add;
973 extractCtrl.dh = zh->reg->dh;
974 extractCtrl.handle = zh;
975 extractCtrl.zebra_maps = zh->reg->zebra_maps;
976 extractCtrl.flagShowRecords = 0;
977 for (i = 0; i<256; i++)
979 if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
980 extractCtrl.seqno[i] = 1;
982 extractCtrl.seqno[i] = 0;
985 r = (*recType->extract)(clientData, &extractCtrl);
987 if (r == RECCTRL_EXTRACT_EOF)
989 else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
991 /* error occured during extraction ... */
992 yaz_log (LOG_WARN, "extract error: generic");
995 else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
997 /* error occured during extraction ... */
998 yaz_log (LOG_WARN, "extract error: no such filter");
1001 if (zh->reg->keys.buf_used == 0)
1003 /* the extraction process returned no information - the record
1004 is probably empty - unless flagShowRecords is in use */
1007 logf (LOG_WARN, "No keys generated for record");
1008 logf (LOG_WARN, " The file is probably empty");
1011 /* match criteria */
1016 if (match_criteria && *match_criteria) {
1017 matchStr = match_criteria;
1019 if (zh->m_record_id && *zh->m_record_id) {
1020 matchStr = fileMatchStr (zh, &zh->reg->keys, pr_fname,
1024 logf (LOG_WARN, "Bad match criteria (recordID)");
1030 rinfo = dict_lookup (zh->reg->matchDict, matchStr);
1033 assert(*rinfo == sizeof(*sysno));
1034 memcpy (sysno, rinfo+1, sizeof(*sysno));
1044 logf (LOG_LOG, "delete %s %s %ld", recordType,
1045 pr_fname, (long) recordOffset);
1046 logf (LOG_WARN, "cannot delete record above (seems new)");
1049 logf (LOG_LOG, "add %s %s %ld", recordType, pr_fname,
1050 (long) recordOffset);
1051 rec = rec_new (zh->reg->records);
1053 *sysno = rec->sysno;
1055 recordAttr = rec_init_attr (zh->reg->zei, rec);
1059 dict_insert (zh->reg->matchDict, matchStr,
1060 sizeof(*sysno), sysno);
1062 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
1063 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
1065 zh->records_inserted++;
1069 /* record already exists */
1070 struct recKeys delkeys;
1071 struct sortKeys sortKeys;
1073 if (!allow_update) {
1074 logf (LOG_LOG, "skipped %s %s %ld",
1075 recordType, pr_fname, (long) recordOffset);
1080 rec = rec_get (zh->reg->records, *sysno);
1083 recordAttr = rec_init_attr (zh->reg->zei, rec);
1085 if (!force_update) {
1086 if (recordAttr->runNumber ==
1087 zebraExplain_runNumberIncrement (zh->reg->zei, 0))
1089 logf (LOG_LOG, "skipped %s %s %ld", recordType,
1090 pr_fname, (long) recordOffset);
1091 extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
1098 delkeys.buf_used = rec->size[recInfo_delKeys];
1099 delkeys.buf = rec->info[recInfo_delKeys];
1101 sortKeys.buf_used = rec->size[recInfo_sortKeys];
1102 sortKeys.buf = rec->info[recInfo_sortKeys];
1104 extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
1105 extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
1108 /* record going to be deleted */
1109 if (!delkeys.buf_used)
1111 logf (LOG_LOG, "delete %s %s %ld", recordType,
1112 pr_fname, (long) recordOffset);
1113 logf (LOG_WARN, "cannot delete file above, storeKeys false");
1117 logf (LOG_LOG, "delete %s %s %ld", recordType,
1118 pr_fname, (long) recordOffset);
1119 zh->records_deleted++;
1121 dict_delete (zh->reg->matchDict, matchStr);
1122 rec_del (zh->reg->records, &rec);
1130 /* record going to be updated */
1131 if (!delkeys.buf_used)
1133 logf (LOG_LOG, "update %s %s %ld", recordType,
1134 pr_fname, (long) recordOffset);
1135 logf (LOG_WARN, "cannot update file above, storeKeys false");
1139 logf (LOG_LOG, "update %s %s %ld", recordType,
1140 pr_fname, (long) recordOffset);
1141 extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
1142 extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
1143 zh->records_updated++;
1147 /* update file type */
1148 xfree (rec->info[recInfo_fileType]);
1149 rec->info[recInfo_fileType] =
1150 rec_strdup (recordType, &rec->size[recInfo_fileType]);
1152 /* update filename */
1153 xfree (rec->info[recInfo_filename]);
1154 rec->info[recInfo_filename] =
1155 rec_strdup (fname, &rec->size[recInfo_filename]);
1157 /* update delete keys */
1158 xfree (rec->info[recInfo_delKeys]);
1159 if (zh->reg->keys.buf_used > 0 && zh->m_store_keys == 1)
1161 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1162 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1163 zh->reg->keys.buf = NULL;
1164 zh->reg->keys.buf_max = 0;
1168 rec->info[recInfo_delKeys] = NULL;
1169 rec->size[recInfo_delKeys] = 0;
1172 /* update sort keys */
1173 xfree (rec->info[recInfo_sortKeys]);
1175 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1176 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1177 zh->reg->sortKeys.buf = NULL;
1178 zh->reg->sortKeys.buf_max = 0;
1180 /* save file size of original record */
1181 zebraExplain_recordBytesIncrement (zh->reg->zei,
1182 - recordAttr->recordSize);
1184 recordAttr->recordSize = fi->file_moffset - recordOffset;
1185 if (!recordAttr->recordSize)
1186 recordAttr->recordSize = fi->file_max - recordOffset;
1188 recordAttr->recordSize = buf_size;
1190 zebraExplain_recordBytesIncrement (zh->reg->zei,
1191 recordAttr->recordSize);
1193 /* set run-number for this record */
1194 recordAttr->runNumber =
1195 zebraExplain_runNumberIncrement (zh->reg->zei, 0);
1197 /* update store data */
1198 xfree (rec->info[recInfo_storeData]);
1199 if (zh->m_store_data)
1201 rec->size[recInfo_storeData] = recordAttr->recordSize;
1202 rec->info[recInfo_storeData] = (char *)
1203 xmalloc (recordAttr->recordSize);
1204 memcpy (rec->info[recInfo_storeData], buf, recordAttr->recordSize);
1208 rec->info[recInfo_storeData] = NULL;
1209 rec->size[recInfo_storeData] = 0;
1211 /* update database name */
1212 xfree (rec->info[recInfo_databaseName]);
1213 rec->info[recInfo_databaseName] =
1214 rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]);
1217 recordAttr->recordOffset = recordOffset;
1219 /* commit this record */
1220 rec_put (zh->reg->records, &rec);
1225 int explain_extract (void *handle, Record rec, data1_node *n)
1227 ZebraHandle zh = (ZebraHandle) handle;
1228 struct recExtractCtrl extractCtrl;
1231 if (zebraExplain_curDatabase (zh->reg->zei,
1232 rec->info[recInfo_databaseName]))
1235 if (zebraExplain_newDatabase (zh->reg->zei,
1236 rec->info[recInfo_databaseName], 0))
1240 create_rec_keys_codec(&zh->reg->keys);
1242 zh->reg->sortKeys.buf_used = 0;
1244 extractCtrl.init = extract_init;
1245 extractCtrl.tokenAdd = extract_token_add;
1246 extractCtrl.schemaAdd = extract_schema_add;
1247 extractCtrl.dh = zh->reg->dh;
1248 for (i = 0; i<256; i++)
1249 extractCtrl.seqno[i] = 0;
1250 extractCtrl.zebra_maps = zh->reg->zebra_maps;
1251 extractCtrl.flagShowRecords = 0;
1252 extractCtrl.handle = handle;
1255 grs_extract_tree(&extractCtrl, n);
1257 if (rec->size[recInfo_delKeys])
1259 struct recKeys delkeys;
1260 struct sortKeys sortkeys;
1262 delkeys.buf_used = rec->size[recInfo_delKeys];
1263 delkeys.buf = rec->info[recInfo_delKeys];
1265 sortkeys.buf_used = rec->size[recInfo_sortKeys];
1266 sortkeys.buf = rec->info[recInfo_sortKeys];
1268 extract_flushSortKeys (zh, rec->sysno, 0, &sortkeys);
1269 extract_flushRecordKeys (zh, rec->sysno, 0, &delkeys);
1271 extract_flushRecordKeys (zh, rec->sysno, 1, &zh->reg->keys);
1272 extract_flushSortKeys (zh, rec->sysno, 1, &zh->reg->sortKeys);
1274 xfree (rec->info[recInfo_delKeys]);
1275 rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
1276 rec->info[recInfo_delKeys] = zh->reg->keys.buf;
1277 zh->reg->keys.buf = NULL;
1278 zh->reg->keys.buf_max = 0;
1280 xfree (rec->info[recInfo_sortKeys]);
1281 rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
1282 rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
1283 zh->reg->sortKeys.buf = NULL;
1284 zh->reg->sortKeys.buf_max = 0;
1289 void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
1290 int cmd, struct recKeys *reckeys)
1293 void *decode_handle = iscz1_start();
1298 unsigned char attrSet = (unsigned char) -1;
1299 unsigned short attrUse = (unsigned short) -1;
1304 ZebraExplainInfo zei = zh->reg->zei;
1306 if (!zh->reg->key_buf)
1308 int mem= 1024*1024* atoi( res_get_def( zh->res, "memmax", "8"));
1311 logf(LOG_WARN, "Invalid memory setting, using default 8 MB");
1314 /* FIXME: That "8" should be in a default settings include */
1315 /* not hard-coded here! -H */
1316 zh->reg->key_buf = (char**) xmalloc (mem);
1317 zh->reg->ptr_top = mem/sizeof(char*);
1319 zh->reg->key_buf_used = 0;
1320 zh->reg->key_file_no = 0;
1322 zebraExplain_recordCountIncrement (zei, cmd ? 1 : -1);
1324 while (off < reckeys->buf_used)
1326 const char *src = reckeys->buf + off;
1328 char *dst = (char*) &key;
1329 int attrSet, attrUse;
1331 iscz1_decode(decode_handle, &dst, &src);
1332 assert(key.len < 4 && key.len > 2);
1334 attrSet = (int) key.mem[0];
1335 attrUse = (int) key.mem[1]; /* sequence in mem[2] */
1337 if (zh->reg->key_buf_used + 1024 >
1338 (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
1339 extract_flushWriteKeys (zh,0);
1340 assert(zh->reg->ptr_i >= 0);
1342 assert(zh->reg->ptr_i > 0);
1343 (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
1344 (char*)zh->reg->key_buf + zh->reg->key_buf_used;
1346 ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1348 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1351 zh->reg->key_buf_used +=
1352 key_SU_encode (ch,((char*)zh->reg->key_buf) +
1353 zh->reg->key_buf_used);
1355 ((char*)zh->reg->key_buf) [(zh->reg->key_buf_used)++] = *src++;
1357 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = '\0';
1358 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = cmd;
1362 key.mem[1] = key.mem[2]; /* sequence .. */
1364 memcpy ((char*)zh->reg->key_buf + zh->reg->key_buf_used,
1366 (zh->reg->key_buf_used) += sizeof(key);
1367 off = src - reckeys->buf;
1370 while (off < reckeys->buf_used)
1372 const char *src = reckeys->buf + off;
1381 memcpy (&ch, src, sizeof(ch));
1387 memcpy (&attrSet, src, sizeof(attrSet));
1388 src += sizeof(attrSet);
1392 memcpy (&attrUse, src, sizeof(attrUse));
1393 src += sizeof(attrUse);
1396 if (zh->reg->key_buf_used + 1024 >
1397 (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
1398 extract_flushWriteKeys (zh,0);
1399 assert(zh->reg->ptr_i >= 0);
1401 assert(zh->reg->ptr_i > 0);
1402 (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
1403 (char*)zh->reg->key_buf + zh->reg->key_buf_used;
1406 ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1408 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1411 zh->reg->key_buf_used +=
1412 key_SU_encode (ch,((char*)zh->reg->key_buf) +
1413 zh->reg->key_buf_used);
1416 ((char*)zh->reg->key_buf) [(zh->reg->key_buf_used)++] = *src++;
1418 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = '\0';
1419 ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = cmd;
1422 seqno += ((lead>>2) & 15)-1;
1425 memcpy (&seqno, src, sizeof(seqno));
1426 src += sizeof(seqno);
1430 memcpy ((char*)zh->reg->key_buf + zh->reg->key_buf_used, &key, sizeof(key));
1431 (zh->reg->key_buf_used) += sizeof(key);
1432 off = src - reckeys->buf;
1435 assert (off == reckeys->buf_used);
1437 iscz1_stop(decode_handle);
1441 void extract_flushWriteKeys (ZebraHandle zh, int final)
1442 /* optimizing: if final=1, and no files written yet */
1443 /* push the keys directly to merge, sidestepping the */
1444 /* temp file altogether. Speeds small updates */
1447 char out_fname[200];
1449 struct encode_info encode_info;
1450 int ptr_i = zh->reg->ptr_i;
1455 if (!zh->reg->key_buf || ptr_i <= 0)
1457 logf (LOG_DEBUG, " nothing to flush section=%d buf=%p i=%d",
1458 zh->reg->key_file_no, zh->reg->key_buf, ptr_i);
1459 logf (LOG_DEBUG, " buf=%p ",
1461 logf (LOG_DEBUG, " ptr=%d ",zh->reg->ptr_i);
1462 logf (LOG_DEBUG, " reg=%p ",zh->reg);
1467 (zh->reg->key_file_no)++;
1468 logf (LOG_LOG, "sorting section %d", (zh->reg->key_file_no));
1469 logf (LOG_DEBUG, " sort_buff at %p n=%d",
1470 zh->reg->key_buf + zh->reg->ptr_top - ptr_i,ptr_i);
1472 qsort (zh->reg->key_buf + zh->reg->ptr_top - ptr_i, ptr_i,
1473 sizeof(char*), key_qsort_compare);
1475 /* zebra.cfg: tempfiles:
1476 Y: always use temp files (old way)
1477 A: use temp files, if more than one (auto)
1478 = if this is both the last and the first
1479 N: never bother with temp files (new) */
1481 temp_policy=toupper(res_get_def(zh->res,"tempfiles","auto")[0]);
1482 if (temp_policy != 'Y' && temp_policy != 'N' && temp_policy != 'A') {
1483 logf (LOG_WARN, "Illegal tempfiles setting '%c'. using 'Auto' ",
1488 if ( ( temp_policy =='N' ) || /* always from memory */
1489 ( ( temp_policy =='A' ) && /* automatic */
1490 (zh->reg->key_file_no == 1) && /* this is first time */
1491 (final) ) ) /* and last (=only) time */
1492 { /* go directly from memory */
1493 zh->reg->key_file_no =0; /* signal not to read files */
1494 zebra_index_merge(zh);
1496 zh->reg->key_buf_used = 0;
1500 /* Not doing directly from memory, write into a temp file */
1501 extract_get_fname_tmp (zh, out_fname, zh->reg->key_file_no);
1503 if (!(outf = fopen (out_fname, "wb")))
1505 logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
1508 logf (LOG_LOG, "writing section %d", zh->reg->key_file_no);
1509 prevcp = cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1511 encode_key_init (&encode_info);
1512 encode_key_write (cp, &encode_info, outf);
1516 cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
1517 if (strcmp (cp, prevcp))
1519 encode_key_flush ( &encode_info, outf);
1520 encode_key_init (&encode_info);
1521 encode_key_write (cp, &encode_info, outf);
1525 encode_key_write (cp + strlen(cp), &encode_info, outf);
1527 encode_key_flush ( &encode_info, outf);
1529 qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_x_compare);
1530 extract_get_fname_tmp (out_fname, key_file_no);
1532 if (!(outf = fopen (out_fname, "wb")))
1534 logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
1537 logf (LOG_LOG, "writing section %d", key_file_no);
1539 prevcp = key_buf[ptr_top-i];
1541 if (!--i || strcmp (prevcp, key_buf[ptr_top-i]))
1543 key_y_len = strlen(prevcp)+1;
1545 logf (LOG_LOG, "key_y_len: %2d %02x %02x %s",
1546 key_y_len, prevcp[0], prevcp[1], 2+prevcp);
1548 qsort (key_buf + ptr_top-ptr_i, ptr_i - i,
1549 sizeof(char*), key_y_compare);
1550 cp = key_buf[ptr_top-ptr_i];
1552 encode_key_init (&encode_info);
1553 encode_key_write (cp, &encode_info, outf);
1556 cp = key_buf[ptr_top-ptr_i];
1557 encode_key_write (cp+key_y_len, &encode_info, outf);
1559 encode_key_flush ( &encode_info, outf);
1562 prevcp = key_buf[ptr_top-ptr_i];
1567 logf (LOG_FATAL|LOG_ERRNO, "fclose %s", out_fname);
1570 logf (LOG_LOG, "finished section %d", zh->reg->key_file_no);
1572 zh->reg->key_buf_used = 0;
1575 void extract_add_index_string (RecWord *p, const char *str, int length)
1578 ZebraHandle zh = p->extractCtrl->handle;
1579 struct recKeys *keys = &zh->reg->keys;
1582 const char *src = (char*) &key;
1584 unsigned char attrSet;
1585 unsigned short attrUse;
1588 int *pseqno = &p->seqno;
1589 ZebraExplainInfo zei = zh->reg->zei;
1592 if (keys->buf_used+1024 > keys->buf_max)
1596 b = (char *) xmalloc (keys->buf_max += 128000);
1597 if (keys->buf_used > 0)
1598 memcpy (b, keys->buf, keys->buf_used);
1602 dst = keys->buf + keys->buf_used;
1606 key.mem[0] = p->attrSet;
1607 key.mem[1] = p->attrUse;
1608 key.mem[2] = p->seqno;
1611 /* just for debugging .. */
1612 yaz_log(LOG_LOG, "set=%d use=%d seqno=%d", p->attrSet, p->attrUse,
1616 iscz1_encode(keys->codec_handle, &dst, &src);
1618 *dst++ = p->reg_type;
1619 memcpy (dst, str, length);
1623 /* leader byte is encoded as follows:
1624 bit 0 : 1 if attrset is unchanged; 0 if attrset is changed
1625 bit 1 : 1 if attruse is unchanged; 0 if attruse is changed
1627 attrSet = p->attrSet;
1628 if (keys->buf_used > 0 && keys->prevAttrSet == attrSet)
1631 keys->prevAttrSet = attrSet;
1632 attrUse = p->attrUse;
1633 if (keys->buf_used > 0 && keys->prevAttrUse == attrUse)
1636 keys->prevAttrUse = attrUse;
1638 diff = 1 + *pseqno - keys->prevSeqNo;
1639 if (diff >= 1 && diff <= 15)
1640 lead |= (diff << 2);
1644 keys->prevSeqNo = *pseqno;
1651 int ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
1654 ch = zebraExplain_addSU (zei, attrSet, attrUse);
1655 yaz_log (LOG_DEBUG, "addSU set=%d use=%d SU=%d",
1656 attrSet, attrUse, ch);
1659 memcpy (dst, &ch, sizeof(ch));
1665 memcpy (dst, &attrSet, sizeof(attrSet));
1666 dst += sizeof(attrSet);
1670 memcpy (dst, &attrUse, sizeof(attrUse));
1671 dst += sizeof(attrUse);
1674 *dst++ = p->reg_type;
1675 memcpy (dst, str, length);
1681 memcpy (dst, pseqno, sizeof(*pseqno));
1682 dst += sizeof(*pseqno);
1685 keys->buf_used = dst - keys->buf;
1688 static void extract_add_sort_string (RecWord *p, const char *str,
1691 ZebraHandle zh = p->extractCtrl->handle;
1692 struct sortKeys *sk = &zh->reg->sortKeys;
1695 while (off < sk->buf_used)
1699 off += key_SU_decode(&set, sk->buf + off);
1700 off += key_SU_decode(&use, sk->buf + off);
1701 off += key_SU_decode(&slen, sk->buf + off);
1703 if (p->attrSet == set && p->attrUse == use)
1706 assert (off == sk->buf_used);
1708 if (sk->buf_used + IT_MAX_WORD > sk->buf_max)
1712 b = (char *) xmalloc (sk->buf_max += 128000);
1713 if (sk->buf_used > 0)
1714 memcpy (b, sk->buf, sk->buf_used);
1718 off += key_SU_encode(p->attrSet, sk->buf + off);
1719 off += key_SU_encode(p->attrUse, sk->buf + off);
1720 off += key_SU_encode(length, sk->buf + off);
1721 memcpy (sk->buf + off, str, length);
1722 sk->buf_used = off + length;
1725 void extract_add_string (RecWord *p, const char *string, int length)
1727 assert (length > 0);
1728 if (zebra_maps_is_sort (p->zebra_maps, p->reg_type))
1729 extract_add_sort_string (p, string, length);
1731 extract_add_index_string (p, string, length);
1734 static void extract_add_incomplete_field (RecWord *p)
1736 const char *b = p->string;
1737 int remain = p->length;
1738 const char **map = 0;
1741 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1745 char buf[IT_MAX_WORD+1];
1749 while (map && *map && **map == *CHR_SPACE)
1751 remain = p->length - (b - p->string);
1753 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1760 while (map && *map && **map != *CHR_SPACE)
1762 const char *cp = *map;
1764 while (i < IT_MAX_WORD && *cp)
1766 remain = p->length - (b - p->string);
1768 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1774 extract_add_string (p, buf, i);
1779 static void extract_add_complete_field (RecWord *p)
1781 const char *b = p->string;
1782 char buf[IT_MAX_WORD+1];
1783 const char **map = 0;
1784 int i = 0, remain = p->length;
1787 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b, remain);
1789 while (remain > 0 && i < IT_MAX_WORD)
1791 while (map && *map && **map == *CHR_SPACE)
1793 remain = p->length - (b - p->string);
1796 map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
1803 if (i && i < IT_MAX_WORD)
1804 buf[i++] = *CHR_SPACE;
1805 while (map && *map && **map != *CHR_SPACE)
1807 const char *cp = *map;
1809 if (**map == *CHR_CUT)
1815 if (i >= IT_MAX_WORD)
1817 while (i < IT_MAX_WORD && *cp)
1820 remain = p->length - (b - p->string);
1822 map = zebra_maps_input (p->zebra_maps, p->reg_type, &b,
1830 extract_add_string (p, buf, i);
1833 void extract_token_add (RecWord *p)
1837 yaz_log (LOG_LOG, "token_add "
1838 "reg_type=%c attrSet=%d attrUse=%d seqno=%d s=%.*s",
1839 p->reg_type, p->attrSet, p->attrUse, p->seqno, p->length,
1842 if ((wrbuf = zebra_replace(p->zebra_maps, p->reg_type, 0,
1843 p->string, p->length)))
1845 p->string = wrbuf_buf(wrbuf);
1846 p->length = wrbuf_len(wrbuf);
1848 if (zebra_maps_is_complete (p->zebra_maps, p->reg_type))
1849 extract_add_complete_field (p);
1851 extract_add_incomplete_field(p);
1854 void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
1856 ZebraHandle zh = (ZebraHandle) (p->handle);
1857 zebraExplain_addSchema (zh->reg->zei, oid);
1860 void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
1861 int cmd, struct sortKeys *sk)
1863 SortIdx sortIdx = zh->reg->sortIdx;
1866 sortIdx_sysno (sortIdx, sysno);
1868 while (off < sk->buf_used)
1872 off += key_SU_decode(&set, sk->buf + off);
1873 off += key_SU_decode(&use, sk->buf + off);
1874 off += key_SU_decode(&slen, sk->buf + off);
1876 sortIdx_type(sortIdx, use);
1878 sortIdx_add(sortIdx, sk->buf + off, slen);
1880 sortIdx_add(sortIdx, "", 1);
1885 void encode_key_init (struct encode_info *i)
1895 i->encode_handle = iscz1_start();
1901 char *encode_key_int (int d, char *bp)
1905 else if (d <= 16383)
1907 *bp++ = 64 + (d>>8);
1910 else if (d <= 4194303)
1912 *bp++ = 128 + (d>>16);
1913 *bp++ = (d>>8) & 255;
1918 *bp++ = 192 + (d>>24);
1919 *bp++ = (d>>16) & 255;
1920 *bp++ = (d>>8) & 255;
1930 /* this is the old encode_key_write
1931 * may be deleted once we are confident that the new works
1934 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1937 char *bp = i->buf, *bp0;
1938 const char *src = (char *) &key;
1940 /* copy term to output buf */
1941 while ((*bp++ = *k++))
1943 /* and copy & align key so we can mangle */
1944 memcpy (&key, k+1, sizeof(struct it_key)); /* *k is insert/delete */
1947 iscz1_encode(i->encode_handle, &bp, &src);
1948 *bp0 = (*k * 128) + bp - bp0 - 1; /* length and insert/delete combined */
1950 bp = encode_key_int ( (key.sysno - i->sysno) * 2 + *k, bp);
1951 if (i->sysno != key.sysno)
1953 i->sysno = key.sysno;
1956 else if (!i->seqno && !key.seqno && i->cmd == *k)
1958 bp = encode_key_int (key.seqno - i->seqno, bp);
1959 i->seqno = key.seqno;
1962 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
1964 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
1969 void encode_key_flush (struct encode_info *i, FILE *outf)
1970 { /* dummy routine */
1972 iscz1_stop(i->encode_handle);
1978 /* new encode_key_write
1979 * The idea is to buffer one more key, and compare them
1980 * If we are going to delete and insert the same key,
1981 * we may as well not bother. Should make a difference in
1982 * updates with small modifications (appending to a mbox)
1984 void encode_key_write (char *k, struct encode_info *i, FILE *outf)
1989 if (*k) /* first time for new key */
1992 while ((*bp++ = *k++))
1994 i->keylen= bp - i->buf -1;
1995 assert(i->keylen+1+sizeof(struct it_key) < ENCODE_BUFLEN);
1999 bp=i->buf + i->keylen;
2004 memcpy (&key, k+1, sizeof(struct it_key));
2005 if (0==i->prevsys) /* no previous filter, fill up */
2007 i->prevsys=key.sysno;
2008 i->prevseq=key.seqno;
2011 else if ( (i->prevsys==key.sysno) &&
2012 (i->prevseq==key.seqno) &&
2014 { /* same numbers, diff cmd, they cancel out */
2018 { /* different stuff, write previous, move buf */
2019 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
2020 if (i->sysno != i->prevsys)
2022 i->sysno = i->prevsys;
2025 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
2027 return; /* ??? Filters some sort of duplicates away */
2028 /* ??? Can this ever happen -H 15oct02 */
2030 bp = encode_key_int (i->prevseq - i->seqno, bp);
2031 i->seqno = i->prevseq;
2032 i->cmd = i->prevcmd;
2033 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
2035 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
2038 i->keylen=0; /* ok, it's written, forget it */
2039 i->prevsys=key.sysno;
2040 i->prevseq=key.seqno;
2045 void encode_key_flush (struct encode_info *i, FILE *outf)
2046 { /* flush the last key from i */
2047 char *bp =i->buf + i->keylen;
2050 return; /* nothing to flush */
2053 bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
2054 if (i->sysno != i->prevsys)
2056 i->sysno = i->prevsys;
2059 else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
2061 return; /* ??? Filters some sort of duplicates away */
2062 /* ??? Can this ever happen -H 15oct02 */
2064 bp = encode_key_int (i->prevseq - i->seqno, bp);
2065 i->seqno = i->prevseq;
2066 i->cmd = i->prevcmd;
2067 if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
2069 logf (LOG_FATAL|LOG_ERRNO, "fwrite");
2072 i->keylen=0; /* ok, it's written, forget it */
2073 i->prevsys=0; /* forget the values too */