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Update uthash to 2.3.0

This commit is contained in:
ValdikSS 2021-12-27 06:58:20 +03:00
parent 6eec99e874
commit 46219e95e7
1 changed files with 55 additions and 127 deletions
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182
src/utils/uthash.h
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@ -1,5 +1,5 @@
/*
Copyright (c) 2003-2017, Troy D. Hanson http://troydhanson.github.com/uthash/
Copyright (c) 2003-2021, Troy D. Hanson http://troydhanson.github.io/uthash/
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -24,12 +24,22 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef UTHASH_H
#define UTHASH_H
#define UTHASH_VERSION 2.0.2
#define UTHASH_VERSION 2.3.0
#include <string.h> /* memcmp, memset, strlen */
#include <stddef.h> /* ptrdiff_t */
#include <stdlib.h> /* exit */
#if defined(HASH_DEFINE_OWN_STDINT) && HASH_DEFINE_OWN_STDINT
/* This codepath is provided for backward compatibility, but I plan to remove it. */
#warning "HASH_DEFINE_OWN_STDINT is deprecated; please use HASH_NO_STDINT instead"
typedef unsigned int uint32_t;
typedef unsigned char uint8_t;
#elif defined(HASH_NO_STDINT) && HASH_NO_STDINT
#else
#include <stdint.h> /* uint8_t, uint32_t */
#endif
/* These macros use decltype or the earlier __typeof GNU extension.
As decltype is only available in newer compilers (VS2010 or gcc 4.3+
when compiling c++ source) this code uses whatever method is needed
@ -62,23 +72,6 @@ do {
} while (0)
#endif
/* a number of the hash function use uint32_t which isn't defined on Pre VS2010 */
#if defined(_WIN32)
#if defined(_MSC_VER) && _MSC_VER >= 1600
#include <stdint.h>
#elif defined(__WATCOMC__) || defined(__MINGW32__) || defined(__CYGWIN__)
#include <stdint.h>
#else
typedef unsigned int uint32_t;
typedef unsigned char uint8_t;
#endif
#elif defined(__GNUC__) && !defined(__VXWORKS__)
#include <stdint.h>
#else
typedef unsigned int uint32_t;
typedef unsigned char uint8_t;
#endif
#ifndef uthash_malloc
#define uthash_malloc(sz) malloc(sz) /* malloc fcn */
#endif
@ -88,13 +81,18 @@ typedef unsigned char uint8_t;
#ifndef uthash_bzero
#define uthash_bzero(a,n) memset(a,'\0',n)
#endif
#ifndef uthash_memcmp
#define uthash_memcmp(a,b,n) memcmp(a,b,n)
#endif
#ifndef uthash_strlen
#define uthash_strlen(s) strlen(s)
#endif
#ifndef HASH_FUNCTION
#define HASH_FUNCTION(keyptr,keylen,hashv) HASH_JEN(keyptr, keylen, hashv)
#endif
#ifndef HASH_KEYCMP
#define HASH_KEYCMP(a,b,n) memcmp(a,b,n)
#endif
#ifndef uthash_noexpand_fyi
#define uthash_noexpand_fyi(tbl) /* can be defined to log noexpand */
#endif
@ -136,7 +134,7 @@ typedef unsigned char uint8_t;
/* calculate the element whose hash handle address is hhp */
#define ELMT_FROM_HH(tbl,hhp) ((void*)(((char*)(hhp)) - ((tbl)->hho)))
/* calculate the hash handle from element address elp */
#define HH_FROM_ELMT(tbl,elp) ((UT_hash_handle *)(((char*)(elp)) + ((tbl)->hho)))
#define HH_FROM_ELMT(tbl,elp) ((UT_hash_handle*)(void*)(((char*)(elp)) + ((tbl)->hho)))
#define HASH_ROLLBACK_BKT(hh, head, itemptrhh) \
do { \
@ -150,7 +148,7 @@ do {
#define HASH_VALUE(keyptr,keylen,hashv) \
do { \
HASH_FCN(keyptr, keylen, hashv); \
HASH_FUNCTION(keyptr, keylen, hashv); \
} while (0)
#define HASH_FIND_BYHASHVALUE(hh,head,keyptr,keylen,hashval,out) \
@ -167,9 +165,12 @@ do {
#define HASH_FIND(hh,head,keyptr,keylen,out) \
do { \
unsigned _hf_hashv; \
HASH_VALUE(keyptr, keylen, _hf_hashv); \
HASH_FIND_BYHASHVALUE(hh, head, keyptr, keylen, _hf_hashv, out); \
(out) = NULL; \
if (head) { \
unsigned _hf_hashv; \
HASH_VALUE(keyptr, keylen, _hf_hashv); \
HASH_FIND_BYHASHVALUE(hh, head, keyptr, keylen, _hf_hashv, out); \
} \
} while (0)
#ifdef HASH_BLOOM
@ -397,7 +398,7 @@ do {
do { \
IF_HASH_NONFATAL_OOM( int _ha_oomed = 0; ) \
(add)->hh.hashv = (hashval); \
(add)->hh.key = (char*) (keyptr); \
(add)->hh.key = (const void*) (keyptr); \
(add)->hh.keylen = (unsigned) (keylen_in); \
if (!(head)) { \
(add)->hh.next = NULL; \
@ -478,11 +479,20 @@ do {
/* convenience forms of HASH_FIND/HASH_ADD/HASH_DEL */
#define HASH_FIND_STR(head,findstr,out) \
HASH_FIND(hh,head,findstr,(unsigned)uthash_strlen(findstr),out)
do { \
unsigned _uthash_hfstr_keylen = (unsigned)uthash_strlen(findstr); \
HASH_FIND(hh, head, findstr, _uthash_hfstr_keylen, out); \
} while (0)
#define HASH_ADD_STR(head,strfield,add) \
HASH_ADD(hh,head,strfield[0],(unsigned)uthash_strlen(add->strfield),add)
do { \
unsigned _uthash_hastr_keylen = (unsigned)uthash_strlen((add)->strfield); \
HASH_ADD(hh, head, strfield[0], _uthash_hastr_keylen, add); \
} while (0)
#define HASH_REPLACE_STR(head,strfield,add,replaced) \
HASH_REPLACE(hh,head,strfield[0],(unsigned)uthash_strlen(add->strfield),add,replaced)
do { \
unsigned _uthash_hrstr_keylen = (unsigned)uthash_strlen((add)->strfield); \
HASH_REPLACE(hh, head, strfield[0], _uthash_hrstr_keylen, add, replaced); \
} while (0)
#define HASH_FIND_INT(head,findint,out) \
HASH_FIND(hh,head,findint,sizeof(int),out)
#define HASH_ADD_INT(head,intfield,add) \
@ -502,7 +512,8 @@ do {
* This is for uthash developer only; it compiles away if HASH_DEBUG isn't defined.
*/
#ifdef HASH_DEBUG
#define HASH_OOPS(...) do { fprintf(stderr,__VA_ARGS__); exit(-1); } while (0)
#include <stdio.h> /* fprintf, stderr */
#define HASH_OOPS(...) do { fprintf(stderr, __VA_ARGS__); exit(-1); } while (0)
#define HASH_FSCK(hh,head,where) \
do { \
struct UT_hash_handle *_thh; \
@ -569,13 +580,6 @@ do {
#define HASH_EMIT_KEY(hh,head,keyptr,fieldlen)
#endif
/* default to Jenkin's hash unless overridden e.g. DHASH_FUNCTION=HASH_SAX */
#ifdef HASH_FUNCTION
#define HASH_FCN HASH_FUNCTION
#else
#define HASH_FCN HASH_JEN
#endif
/* The Bernstein hash function, used in Perl prior to v5.6. Note (x<<5+x)=x*33. */
#define HASH_BER(key,keylen,hashv) \
do { \
@ -674,7 +678,8 @@ do {
case 4: _hj_i += ( (unsigned)_hj_key[3] << 24 ); /* FALLTHROUGH */ \
case 3: _hj_i += ( (unsigned)_hj_key[2] << 16 ); /* FALLTHROUGH */ \
case 2: _hj_i += ( (unsigned)_hj_key[1] << 8 ); /* FALLTHROUGH */ \
case 1: _hj_i += _hj_key[0]; \
case 1: _hj_i += _hj_key[0]; /* FALLTHROUGH */ \
default: ; \
} \
HASH_JEN_MIX(_hj_i, _hj_j, hashv); \
} while (0)
@ -722,6 +727,8 @@ do {
case 1: hashv += *_sfh_key; \
hashv ^= hashv << 10; \
hashv += hashv >> 1; \
break; \
default: ; \
} \
\
/* Force "avalanching" of final 127 bits */ \
@ -733,87 +740,6 @@ do {
hashv += hashv >> 6; \
} while (0)
#ifdef HASH_USING_NO_STRICT_ALIASING
/* The MurmurHash exploits some CPU's (x86,x86_64) tolerance for unaligned reads.
* For other types of CPU's (e.g. Sparc) an unaligned read causes a bus error.
* MurmurHash uses the faster approach only on CPU's where we know it's safe.
*
* Note the preprocessor built-in defines can be emitted using:
*
* gcc -m64 -dM -E - < /dev/null (on gcc)
* cc -## a.c (where a.c is a simple test file) (Sun Studio)
*/
#if (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86))
#define MUR_GETBLOCK(p,i) p[i]
#else /* non intel */
#define MUR_PLUS0_ALIGNED(p) (((unsigned long)p & 3UL) == 0UL)
#define MUR_PLUS1_ALIGNED(p) (((unsigned long)p & 3UL) == 1UL)
#define MUR_PLUS2_ALIGNED(p) (((unsigned long)p & 3UL) == 2UL)
#define MUR_PLUS3_ALIGNED(p) (((unsigned long)p & 3UL) == 3UL)
#define WP(p) ((uint32_t*)((unsigned long)(p) & ~3UL))
#if (defined(__BIG_ENDIAN__) || defined(SPARC) || defined(__ppc__) || defined(__ppc64__))
#define MUR_THREE_ONE(p) ((((*WP(p))&0x00ffffff) << 8) | (((*(WP(p)+1))&0xff000000) >> 24))
#define MUR_TWO_TWO(p) ((((*WP(p))&0x0000ffff) <<16) | (((*(WP(p)+1))&0xffff0000) >> 16))
#define MUR_ONE_THREE(p) ((((*WP(p))&0x000000ff) <<24) | (((*(WP(p)+1))&0xffffff00) >> 8))
#else /* assume little endian non-intel */
#define MUR_THREE_ONE(p) ((((*WP(p))&0xffffff00) >> 8) | (((*(WP(p)+1))&0x000000ff) << 24))
#define MUR_TWO_TWO(p) ((((*WP(p))&0xffff0000) >>16) | (((*(WP(p)+1))&0x0000ffff) << 16))
#define MUR_ONE_THREE(p) ((((*WP(p))&0xff000000) >>24) | (((*(WP(p)+1))&0x00ffffff) << 8))
#endif
#define MUR_GETBLOCK(p,i) (MUR_PLUS0_ALIGNED(p) ? ((p)[i]) : \
(MUR_PLUS1_ALIGNED(p) ? MUR_THREE_ONE(p) : \
(MUR_PLUS2_ALIGNED(p) ? MUR_TWO_TWO(p) : \
MUR_ONE_THREE(p))))
#endif
#define MUR_ROTL32(x,r) (((x) << (r)) | ((x) >> (32 - (r))))
#define MUR_FMIX(_h) \
do { \
_h ^= _h >> 16; \
_h *= 0x85ebca6bu; \
_h ^= _h >> 13; \
_h *= 0xc2b2ae35u; \
_h ^= _h >> 16; \
} while (0)
#define HASH_MUR(key,keylen,hashv) \
do { \
const uint8_t *_mur_data = (const uint8_t*)(key); \
const int _mur_nblocks = (int)(keylen) / 4; \
uint32_t _mur_h1 = 0xf88D5353u; \
uint32_t _mur_c1 = 0xcc9e2d51u; \
uint32_t _mur_c2 = 0x1b873593u; \
uint32_t _mur_k1 = 0; \
const uint8_t *_mur_tail; \
const uint32_t *_mur_blocks = (const uint32_t*)(_mur_data+(_mur_nblocks*4)); \
int _mur_i; \
for (_mur_i = -_mur_nblocks; _mur_i != 0; _mur_i++) { \
_mur_k1 = MUR_GETBLOCK(_mur_blocks,_mur_i); \
_mur_k1 *= _mur_c1; \
_mur_k1 = MUR_ROTL32(_mur_k1,15); \
_mur_k1 *= _mur_c2; \
\
_mur_h1 ^= _mur_k1; \
_mur_h1 = MUR_ROTL32(_mur_h1,13); \
_mur_h1 = (_mur_h1*5U) + 0xe6546b64u; \
} \
_mur_tail = (const uint8_t*)(_mur_data + (_mur_nblocks*4)); \
_mur_k1=0; \
switch ((keylen) & 3U) { \
case 0: break; \
case 3: _mur_k1 ^= (uint32_t)_mur_tail[2] << 16; /* FALLTHROUGH */ \
case 2: _mur_k1 ^= (uint32_t)_mur_tail[1] << 8; /* FALLTHROUGH */ \
case 1: _mur_k1 ^= (uint32_t)_mur_tail[0]; \
_mur_k1 *= _mur_c1; \
_mur_k1 = MUR_ROTL32(_mur_k1,15); \
_mur_k1 *= _mur_c2; \
_mur_h1 ^= _mur_k1; \
} \
_mur_h1 ^= (uint32_t)(keylen); \
MUR_FMIX(_mur_h1); \
hashv = _mur_h1; \
} while (0)
#endif /* HASH_USING_NO_STRICT_ALIASING */
/* iterate over items in a known bucket to find desired item */
#define HASH_FIND_IN_BKT(tbl,hh,head,keyptr,keylen_in,hashval,out) \
do { \
@ -824,7 +750,7 @@ do {
} \
while ((out) != NULL) { \
if ((out)->hh.hashv == (hashval) && (out)->hh.keylen == (keylen_in)) { \
if (uthash_memcmp((out)->hh.key, keyptr, keylen_in) == 0) { \
if (HASH_KEYCMP((out)->hh.key, keyptr, keylen_in) == 0) { \
break; \
} \
} \
@ -910,12 +836,12 @@ do {
struct UT_hash_handle *_he_thh, *_he_hh_nxt; \
UT_hash_bucket *_he_new_buckets, *_he_newbkt; \
_he_new_buckets = (UT_hash_bucket*)uthash_malloc( \
2UL * (tbl)->num_buckets * sizeof(struct UT_hash_bucket)); \
sizeof(struct UT_hash_bucket) * (tbl)->num_buckets * 2U); \
if (!_he_new_buckets) { \
HASH_RECORD_OOM(oomed); \
} else { \
uthash_bzero(_he_new_buckets, \
2UL * (tbl)->num_buckets * sizeof(struct UT_hash_bucket)); \
sizeof(struct UT_hash_bucket) * (tbl)->num_buckets * 2U); \
(tbl)->ideal_chain_maxlen = \
((tbl)->num_items >> ((tbl)->log2_num_buckets+1U)) + \
((((tbl)->num_items & (((tbl)->num_buckets*2U)-1U)) != 0U) ? 1U : 0U); \
@ -928,7 +854,9 @@ do {
_he_newbkt = &(_he_new_buckets[_he_bkt]); \
if (++(_he_newbkt->count) > (tbl)->ideal_chain_maxlen) { \
(tbl)->nonideal_items++; \
_he_newbkt->expand_mult = _he_newbkt->count / (tbl)->ideal_chain_maxlen; \
if (_he_newbkt->count > _he_newbkt->expand_mult * (tbl)->ideal_chain_maxlen) { \
_he_newbkt->expand_mult++; \
} \
} \
_he_thh->hh_prev = NULL; \
_he_thh->hh_next = _he_newbkt->hh_head; \
@ -1061,7 +989,7 @@ do {
_elt = ELMT_FROM_HH((src)->hh_src.tbl, _src_hh); \
if (cond(_elt)) { \
IF_HASH_NONFATAL_OOM( int _hs_oomed = 0; ) \
_dst_hh = (UT_hash_handle*)(((char*)_elt) + _dst_hho); \
_dst_hh = (UT_hash_handle*)(void*)(((char*)_elt) + _dst_hho); \
_dst_hh->key = _src_hh->key; \
_dst_hh->keylen = _src_hh->keylen; \
_dst_hh->hashv = _src_hh->hashv; \
@ -1200,7 +1128,7 @@ typedef struct UT_hash_handle {
void *next; /* next element in app order */
struct UT_hash_handle *hh_prev; /* previous hh in bucket order */
struct UT_hash_handle *hh_next; /* next hh in bucket order */
void *key; /* ptr to enclosing struct's key */
const void *key; /* ptr to enclosing struct's key */
unsigned keylen; /* enclosing struct's key len */
unsigned hashv; /* result of hash-fcn(key) */
} UT_hash_handle;