-/* $Id: extract.c,v 1.216 2006-05-19 23:20:24 adam Exp $
+/* $Id: extract.c,v 1.219 2006-06-07 10:14:40 adam Exp $
Copyright (C) 1995-2006
Index Data ApS
#endif
+#define ENCODE_BUFLEN 768
+struct encode_info {
+#if 0
+ int sysno; /* previously written values for delta-compress */
+ int seqno;
+ int cmd;
+ int prevsys; /* buffer for skipping insert/delete pairs */
+ int prevseq;
+ int prevcmd;
+ int keylen; /* tells if we have an unwritten key in buf, and how long*/
+#endif
+ void *encode_handle;
+ void *decode_handle;
+ char buf[ENCODE_BUFLEN];
+};
+
+static void encode_key_init (struct encode_info *i);
+static void encode_key_write (char *k, struct encode_info *i, FILE *outf);
+static void encode_key_flush (struct encode_info *i, FILE *outf);
#define USE_SHELLSORT 0
if (zebra_rec_keys_rewind(reckeys))
{
- int startSeq = -1;
+ zint startSeq = -1;
const char *str;
size_t slen;
struct it_key key;
if (key.mem[0] == ch)
{
- int woff;
+ zint woff;
if (startSeq == -1)
startSeq = seqno;
struct it_key key_in;
while(zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
{
- int ord = key_in.mem[0];
+ int ord = CAST_ZINT_TO_INT(key_in.mem[0]);
for (p = ord_list; p ; p = p->next)
if (p->ord == ord)
(char*)zh->reg->key_buf + zh->reg->key_buf_used;
/* encode the ordinal value (field/use/attribute) .. */
- ch = (int) key_in.mem[0];
+ ch = CAST_ZINT_TO_INT(key_in.mem[0]);
zh->reg->key_buf_used +=
key_SU_encode(ch, (char*)zh->reg->key_buf +
zh->reg->key_buf_used);
{
char dst_buf[IT_MAX_WORD];
char *dst_term = dst_buf;
- int ord, seqno;
+ int ord;
+ zint seqno;
int index_type;
+
assert(key.len <= 4 && key.len > 2);
- seqno = (int) key.mem[key.len-1];
- ord = key.mem[0];
+ seqno = key.mem[key.len-1];
+ ord = CAST_ZINT_TO_INT(key.mem[0]);
zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type,
0/* db */, 0 /* string_index */);
while (zebra_rec_keys_read(reckeys, &str, &slen, &key))
{
char dst_buf[IT_MAX_WORD];
- int seqno;
+ zint seqno;
int index_type;
+ int ord = CAST_ZINT_TO_INT(key.mem[0]);
const char *db = 0;
assert(key.len <= 4 && key.len > 2);
- zebraExplain_lookup_ord(zh->reg->zei,
- key.mem[0], &index_type, &db, 0);
+ zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, 0);
- seqno = (int) key.mem[key.len-1];
+ seqno = key.mem[key.len-1];
zebra_term_untrans(zh, index_type, dst_buf, str);
- yaz_log(YLOG_LOG, "ord=" ZINT_FORMAT " seqno=%d term=%s",
- key.mem[0], seqno, dst_buf);
+ yaz_log(YLOG_LOG, "ord=%d seqno=" ZINT_FORMAT
+ " term=%s", ord, seqno, dst_buf);
}
}
}
while (zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
{
- int ord = (int) key_in.mem[0];
+ int ord = CAST_ZINT_TO_INT(key_in.mem[0]);
sortIdx_type(sortIdx, ord);
if (cmd == 1)
void encode_key_init (struct encode_info *i)
{
- i->sysno = 0;
- i->seqno = 0;
- i->cmd = -1;
- i->prevsys=0;
- i->prevseq=0;
- i->prevcmd=-1;
- i->keylen=0;
i->encode_handle = iscz1_start();
i->decode_handle = iscz1_start();
}
-#define OLDENCODE 1
-
-#ifdef OLDENCODE
-/* this is the old encode_key_write
- * may be deleted once we are confident that the new works
- * HL 15-oct-2002
- */
void encode_key_write (char *k, struct encode_info *i, FILE *outf)
{
struct it_key key;
iscz1_stop(i->decode_handle);
}
-#else
-
-/* new encode_key_write
- * The idea is to buffer one more key, and compare them
- * If we are going to delete and insert the same key,
- * we may as well not bother. Should make a difference in
- * updates with small modifications (appending to a mbox)
- */
-void encode_key_write (char *k, struct encode_info *i, FILE *outf)
-{
- struct it_key key;
- char *bp;
-
- if (*k) /* first time for new key */
- {
- bp = i->buf;
- while ((*bp++ = *k++))
- ;
- i->keylen= bp - i->buf -1;
- assert(i->keylen+1+sizeof(struct it_key) < ENCODE_BUFLEN);
- }
- else
- {
- bp=i->buf + i->keylen;
- *bp++=0;
- k++;
- }
-
- memcpy (&key, k+1, sizeof(struct it_key));
- if (0==i->prevsys) /* no previous filter, fill up */
- {
- i->prevsys=key.sysno;
- i->prevseq=key.seqno;
- i->prevcmd=*k;
- }
- else if ( (i->prevsys==key.sysno) &&
- (i->prevseq==key.seqno) &&
- (i->prevcmd!=*k) )
- { /* same numbers, diff cmd, they cancel out */
- i->prevsys=0;
- }
- else
- { /* different stuff, write previous, move buf */
- bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
- if (i->sysno != i->prevsys)
- {
- i->sysno = i->prevsys;
- i->seqno = 0;
- }
- else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
- {
- return; /* ??? Filters some sort of duplicates away */
- /* ??? Can this ever happen -H 15oct02 */
- }
- bp = encode_key_int (i->prevseq - i->seqno, bp);
- i->seqno = i->prevseq;
- i->cmd = i->prevcmd;
- if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
- {
- yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
- exit (1);
- }
- i->keylen=0; /* ok, it's written, forget it */
- i->prevsys=key.sysno;
- i->prevseq=key.seqno;
- i->prevcmd=*k;
- }
-}
-
-void encode_key_flush (struct encode_info *i, FILE *outf)
-{ /* flush the last key from i */
- char *bp =i->buf + i->keylen;
- if (0==i->prevsys)
- {
- return; /* nothing to flush */
- }
- *bp++=0;
- bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
- if (i->sysno != i->prevsys)
- {
- i->sysno = i->prevsys;
- i->seqno = 0;
- }
- else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
- {
- return; /* ??? Filters some sort of duplicates away */
- /* ??? Can this ever happen -H 15oct02 */
- }
- bp = encode_key_int (i->prevseq - i->seqno, bp);
- i->seqno = i->prevseq;
- i->cmd = i->prevcmd;
- if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
- {
- yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
- exit (1);
- }
- i->keylen=0; /* ok, it's written, forget it */
- i->prevsys=0; /* forget the values too */
- i->prevseq=0;
-}
-#endif
/*
* Local variables:
* c-basic-offset: 4