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path: root/src/libstddjb/cdb_findnext.c
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Diffstat (limited to 'src/libstddjb/cdb_findnext.c')
-rw-r--r--src/libstddjb/cdb_findnext.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/src/libstddjb/cdb_findnext.c b/src/libstddjb/cdb_findnext.c
deleted file mode 100644
index 536013b..0000000
--- a/src/libstddjb/cdb_findnext.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/* ISC license. */
-
-#include <stdint.h>
-#include <string.h>
-#include <skalibs/uint32.h>
-#include <skalibs/cdb.h>
-
-static int match (struct cdb *c, char const *key, unsigned int len, uint32_t pos)
-{
- char buf[1024] ;
- while (len > 0)
- {
- unsigned int n = 1024 ;
- if (n > len) n = len ;
- if (cdb_read(c, buf, n, pos) < 0) return -1 ;
- if (memcmp(buf, key, n)) return 0 ;
- pos += n ; key += n ; len -= n ;
- }
- return 1 ;
-}
-
-int cdb_findnext (struct cdb *c, char const *key, unsigned int len)
-{
- char buf[8] ;
- uint32_t pos ;
- uint32_t u ;
-
- if (!c->loop)
- {
- u = cdb_hash(key, len) ;
- if (cdb_read(c, buf, 8, (u << 3) & 2047) < 0) return -1 ;
- uint32_unpack(buf + 4, &c->hslots) ;
- if (!c->hslots) return 0 ;
- uint32_unpack(buf, &c->hpos) ;
- c->khash = u ;
- u >>= 8 ;
- u %= c->hslots ;
- u <<= 3 ;
- c->kpos = c->hpos + u ;
- }
-
- while (c->loop < c->hslots)
- {
- if (cdb_read(c, buf, 8, c->kpos) < 0) return -1 ;
- uint32_unpack(buf + 4, &pos) ;
- if (!pos) return 0 ;
- c->loop++ ;
- c->kpos += 8 ;
- if (c->kpos == c->hpos + (c->hslots << 3)) c->kpos = c->hpos ;
- uint32_unpack(buf, &u) ;
- if (u == c->khash)
- {
- if (cdb_read(c, buf, 8, pos) < 0) return -1 ;
- uint32_unpack(buf, &u) ;
- if (u == len)
- switch (match(c, key, len, pos + 8))
- {
- case -1:
- return -1 ;
- case 1:
- uint32_unpack(buf + 4, &c->dlen) ;
- c->dpos = pos + 8 + len ;
- return 1 ;
- }
- }
- }
- return 0 ;
-}