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author | Dana Robinson <43805+derobins@users.noreply.github.com> | 2023-06-07 15:59:54 (GMT) |
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committer | GitHub <noreply@github.com> | 2023-06-07 15:59:54 (GMT) |
commit | bbfecfe08adba3c0a2ebd589aea8bbfce8bc4011 (patch) | |
tree | c860b62401c2b18208c9f65f6691d3379fda3807 /src/uthash.h | |
parent | 37efa90085f6c34db6d5947f3320c3d519ee3653 (diff) | |
download | hdf5-bbfecfe08adba3c0a2ebd589aea8bbfce8bc4011.zip hdf5-bbfecfe08adba3c0a2ebd589aea8bbfce8bc4011.tar.gz hdf5-bbfecfe08adba3c0a2ebd589aea8bbfce8bc4011.tar.bz2 |
Update uthash and move to H5private.h (#3074)
Diffstat (limited to 'src/uthash.h')
-rw-r--r-- | src/uthash.h | 115 |
1 files changed, 47 insertions, 68 deletions
diff --git a/src/uthash.h b/src/uthash.h index b738b77..b1e5cbb 100644 --- a/src/uthash.h +++ b/src/uthash.h @@ -1,5 +1,5 @@ /* -Copyright (c) 2003-2018, Troy D. Hanson http://troydhanson.github.com/uthash/ +Copyright (c) 2003-2022, Troy D. Hanson https://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 2.1.0 +#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 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. } 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 @@ -92,15 +85,12 @@ typedef unsigned char uint8_t; #define uthash_strlen(s) strlen(s) #endif -#ifdef uthash_memcmp -/* This warning will not catch programs that define uthash_memcmp AFTER including uthash.h. */ -#warning "uthash_memcmp is deprecated; please use HASH_KEYCMP instead" -#else -#define uthash_memcmp(a, b, n) memcmp(a, b, n) +#ifndef HASH_FUNCTION +#define HASH_FUNCTION(keyptr, keylen, hashv) HASH_JEN(keyptr, keylen, hashv) #endif #ifndef HASH_KEYCMP -#define HASH_KEYCMP(a, b, n) uthash_memcmp(a, b, n) +#define HASH_KEYCMP(a, b, n) memcmp(a, b, n) #endif #ifndef uthash_noexpand_fyi @@ -163,7 +153,7 @@ typedef unsigned char uint8_t; #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) \ @@ -420,7 +410,7 @@ typedef unsigned char uint8_t; 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; \ @@ -604,13 +594,6 @@ typedef unsigned char uint8_t; #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 { \ @@ -623,7 +606,9 @@ typedef unsigned char uint8_t; } while (0) /* SAX/FNV/OAT/JEN hash functions are macro variants of those listed at - * http://eternallyconfuzzled.com/tuts/algorithms/jsw_tut_hashing.aspx */ + * http://eternallyconfuzzled.com/tuts/algorithms/jsw_tut_hashing.aspx + * (archive link: https://archive.is/Ivcan ) + */ #define HASH_SAX(key, keylen, hashv) \ do { \ unsigned _sx_i; \ @@ -715,36 +700,28 @@ typedef unsigned char uint8_t; switch (_hj_k) { \ case 11: \ hashv += ((unsigned)_hj_key[10] << 24); \ - H5_ATTR_FALLTHROUGH \ - case 10: \ - hashv += ((unsigned)_hj_key[9] << 16); \ - H5_ATTR_FALLTHROUGH \ - case 9: \ - hashv += ((unsigned)_hj_key[8] << 8); \ - H5_ATTR_FALLTHROUGH \ - case 8: \ - _hj_j += ((unsigned)_hj_key[7] << 24); \ - H5_ATTR_FALLTHROUGH \ - case 7: \ - _hj_j += ((unsigned)_hj_key[6] << 16); \ - H5_ATTR_FALLTHROUGH \ - case 6: \ - _hj_j += ((unsigned)_hj_key[5] << 8); \ - H5_ATTR_FALLTHROUGH \ - case 5: \ - _hj_j += _hj_key[4]; \ - H5_ATTR_FALLTHROUGH \ - case 4: \ - _hj_i += ((unsigned)_hj_key[3] << 24); \ - H5_ATTR_FALLTHROUGH \ - case 3: \ - _hj_i += ((unsigned)_hj_key[2] << 16); \ - H5_ATTR_FALLTHROUGH \ - case 2: \ - _hj_i += ((unsigned)_hj_key[1] << 8); \ - H5_ATTR_FALLTHROUGH \ - case 1: \ - _hj_i += _hj_key[0]; \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 10 : hashv += ((unsigned)_hj_key[9] << 16); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 9 : hashv += ((unsigned)_hj_key[8] << 8); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 8 : _hj_j += ((unsigned)_hj_key[7] << 24); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 7 : _hj_j += ((unsigned)_hj_key[6] << 16); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 6 : _hj_j += ((unsigned)_hj_key[5] << 8); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 5 : _hj_j += _hj_key[4]; \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 4 : _hj_i += ((unsigned)_hj_key[3] << 24); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 3 : _hj_i += ((unsigned)_hj_key[2] << 16); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 2 : _hj_i += ((unsigned)_hj_key[1] << 8); \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + case 1 : _hj_i += _hj_key[0]; \ + H5_ATTR_FALLTHROUGH /* FALLTHROUGH */ \ + default:; \ } \ HASH_JEN_MIX(_hj_i, _hj_j, hashv); \ } while (0) @@ -794,6 +771,8 @@ typedef unsigned char uint8_t; hashv += *_sfh_key; \ hashv ^= hashv << 10; \ hashv += hashv >> 1; \ + break; \ + default:; \ } \ \ /* Force "avalanching" of final 127 bits */ \ @@ -899,12 +878,12 @@ typedef unsigned char uint8_t; 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)); \ + (UT_hash_bucket *)uthash_malloc(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)); \ + uthash_bzero(_he_new_buckets, 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); \ @@ -1186,7 +1165,7 @@ 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; |