2 * simple but fast map from str to Oid
3 * Teodor Sigaev <teodor@sigaev.ru>
14 compareSNMapEntry(const void *a, const void *b)
16 if (((SNMapEntry *) a)->nsp < ((SNMapEntry *) b)->nsp)
18 else if (((SNMapEntry *) a)->nsp > ((SNMapEntry *) b)->nsp)
21 return strcmp(((SNMapEntry *) a)->key, ((SNMapEntry *) b)->key);
25 addSNMap(SNMap * map, char *key, Oid value)
27 if (map->len >= map->reallen)
30 int len = (map->reallen) ? 2 * map->reallen : 16;
32 tmp = (SNMapEntry *) realloc(map->list, sizeof(SNMapEntry) * len);
35 (errcode(ERRCODE_OUT_OF_MEMORY),
36 errmsg("out of memory")));
40 map->list[map->len].key = strdup(key);
41 if (!map->list[map->len].key)
43 (errcode(ERRCODE_OUT_OF_MEMORY),
44 errmsg("out of memory")));
45 map->list[map->len].nsp = get_oidnamespace(TSNSP_FunctionOid);
46 map->list[map->len].value = value;
49 qsort(map->list, map->len, sizeof(SNMapEntry), compareSNMapEntry);
53 addSNMap_t(SNMap * map, text *key, Oid value)
55 char *k = text2char(key);
57 addSNMap(map, k, value);
62 findSNMap(SNMap * map, char *key)
68 ks.nsp = get_oidnamespace(TSNSP_FunctionOid);
71 if (map->len == 0 || !map->list)
73 ptr = (SNMapEntry *) bsearch(&ks, map->list, map->len, sizeof(SNMapEntry), compareSNMapEntry);
74 return (ptr) ? ptr->value : 0;
78 findSNMap_t(SNMap * map, text *key)
80 char *k = text2char(key);
83 res = findSNMap(map, k);
89 freeSNMap(SNMap * map)
91 SNMapEntry *entry = map->list;
104 memset(map, 0, sizeof(SNMap));