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/*-
* Copyright 2016 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef UTHASH_STRCASE_H_
#define UTHASH_STRCASE_H_
/* Utils for uthash tuning */
#ifndef HASH_CASELESS
#define HASH_FUNCTION(key,keylen,num_bkts,hashv,bkt) do {\
hashv = mum(key, keylen, 0xdeadbabe); \
bkt = (hashv) & (num_bkts-1); \
} while (0)
#define HASH_KEYCMP(a,b,len) memcmp(a,b,len)
#else
#define HASH_FUNCTION(key,keylen,num_bkts,hashv,bkt) do {\
unsigned len = keylen; \
unsigned leftover = keylen % 8; \
unsigned fp, i; \
const uint8_t* s = (const uint8_t*)key; \
union { \
struct { \
unsigned char c1, c2, c3, c4, c5, c6, c7, c8; \
} c; \
uint64_t pp; \
} u; \
uint64_t r; \
fp = len - leftover; \
r = 0xdeadbabe; \
for (i = 0; i != fp; i += 8) { \
u.c.c1 = s[i], u.c.c2 = s[i + 1], u.c.c3 = s[i + 2], u.c.c4 = s[i + 3]; \
u.c.c5 = s[i + 4], u.c.c6 = s[i + 5], u.c.c7 = s[i + 6], u.c.c8 = s[i + 7]; \
u.c.c1 = lc_map[u.c.c1]; \
u.c.c2 = lc_map[u.c.c2]; \
u.c.c3 = lc_map[u.c.c3]; \
u.c.c4 = lc_map[u.c.c4]; \
u.c.c1 = lc_map[u.c.c5]; \
u.c.c2 = lc_map[u.c.c6]; \
u.c.c3 = lc_map[u.c.c7]; \
u.c.c4 = lc_map[u.c.c8]; \
r = mum_hash_step (r, u.pp); \
} \
u.pp = 0; \
switch (leftover) { \
case 7: \
u.c.c7 = lc_map[(unsigned char)s[i++]]; \
case 6: \
u.c.c6 = lc_map[(unsigned char)s[i++]]; \
case 5: \
u.c.c5 = lc_map[(unsigned char)s[i++]]; \
case 4: \
u.c.c4 = lc_map[(unsigned char)s[i++]]; \
case 3: \
u.c.c3 = lc_map[(unsigned char)s[i++]]; \
case 2: \
u.c.c2 = lc_map[(unsigned char)s[i++]]; \
case 1: \
u.c.c1 = lc_map[(unsigned char)s[i]]; \
r = mum_hash_step (r, u.pp); \
break; \
} \
hashv = mum_hash_finish (r); \
bkt = (hashv) & (num_bkts-1); \
} while (0)
#define HASH_KEYCMP(a,b,len) rspamd_lc_cmp(a,b,len)
#endif
#include "uthash.h"
#endif /* UTHASH_STRCASE_H_ */
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