33 #define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[(expr) ? 1 : -1]; 35 #define ST_DEFAULT_MAX_DENSITY 5 36 #define ST_DEFAULT_INIT_TABLE_SIZE 11 37 #define ST_DEFAULT_SECOND_TABLE_SIZE 19 38 #define ST_DEFAULT_PACKED_TABLE_SIZE 18 39 #define PACKED_UNIT (int)(sizeof(st_packed_entry) / sizeof(st_table_entry*)) 40 #define MAX_PACKED_HASH (int)(ST_DEFAULT_PACKED_TABLE_SIZE * sizeof(st_table_entry*) / sizeof(st_packed_entry)) 55 #define type_numhash st_hashtype_num 77 #define malloc xmalloc 78 #define calloc xcalloc 79 #define realloc xrealloc 80 #define free(x) xfree(x) 83 #define numberof(array) (int)(sizeof(array) / sizeof((array)[0])) 85 #define EQUAL(table,x,y) ((x)==(y) || (*(table)->type->compare)((x),(y)) == 0) 87 #define do_hash(key,table) (st_index_t)(*(table)->type->hash)((key)) 88 #define do_hash_bin(key,table) (do_hash((key), (table))%(table)->num_bins) 91 #define st_alloc_entry() (st_table_entry *)malloc(sizeof(st_table_entry)) 92 #define st_free_entry(entry) free(entry) 93 #define st_alloc_table() (st_table *)malloc(sizeof(st_table)) 94 #define st_dealloc_table(table) free(table) 95 #define st_alloc_bins(size) (st_table_entry **)calloc(size, sizeof(st_table_entry *)) 96 #define st_free_bins(bins, size) free(bins) 106 #define bins as.big.bins 107 #define head as.big.head 108 #define tail as.big.tail 109 #define real_entries as.packed.real_entries 112 #define PACKED_BINS(table) ((table)->as.packed.entries) 113 #define PACKED_ENT(table, i) PACKED_BINS(table)[i] 114 #define PKEY(table, i) PACKED_ENT((table), (i)).key 115 #define PVAL(table, i) PACKED_ENT((table), (i)).val 116 #define PHASH(table, i) PACKED_ENT((table), (i)).hash 117 #define PKEY_SET(table, i, v) (PKEY((table), (i)) = (v)) 118 #define PVAL_SET(table, i, v) (PVAL((table), (i)) = (v)) 119 #define PHASH_SET(table, i, v) (PHASH((table), (i)) = (v)) 189 for (
i=3;
i<31;
i++) {
190 if ((1<<
i) >
size)
return 1<<
i;
212 int all, total, num, str, strcase;
214 static int init_st = 0;
219 char fname[10+
sizeof(long)*3];
220 FILE *
f = fopen((
snprintf(fname,
sizeof(fname),
"/tmp/col%ld", (
long)getpid()), fname),
"w");
221 fprintf(
f,
"collision: %d / %d (%6.2f)\n", collision.all, collision.total,
222 ((
double)collision.all / (collision.total)) * 100);
223 fprintf(
f,
"num: %d, str: %d, strcase: %d\n", collision.num, collision.str, collision.strcase);
236 const char *e =
getenv(
"ST_HASH_LOG");
237 if (!e || !*e) init_st = 1;
320 ptr = table->
bins[
i];
352 #define PTR_NOT_EQUAL(table, ptr, hash_val, key) \ 353 ((ptr) != 0 && ((ptr)->hash != (hash_val) || !EQUAL((table), (key), (ptr)->key))) 370 #define COLLISION (collision_check ? count_collision(table->type) : (void)0) 371 #define FOUND_ENTRY (collision_check ? collision.total++ : (void)0) 377 #define FIND_ENTRY(table, ptr, hash_val, bin_pos) \ 378 ((ptr) = find_entry((table), key, (hash_val), ((bin_pos) = (hash_val)%(table)->num_bins))) 411 #define collision_check 0 424 if (value != 0) *value =
PVAL(table,
i);
436 if (value != 0) *value = ptr->
record;
469 #undef collision_check 470 #define collision_check 1 479 table->
bins[bin_pos] = entry;
480 entry->
hash = hash_val;
494 bin_pos = hash_val % table->
num_bins;
497 entry =
new_entry(table,
key, value, hash_val, bin_pos);
499 if (table->
head != 0) {
520 table->
as.
packed.entries = packed_bins;
522 #if ST_DEFAULT_INIT_TABLE_SIZE == ST_DEFAULT_PACKED_TABLE_SIZE 529 chain = &tmp_table.
head;
537 entry->
back = preventry;
539 chain = &entry->
fore;
542 tmp_table.
tail = entry;
651 table->
bins = new_bins;
653 if ((ptr = table->
head) != 0) {
655 hash_val = ptr->
hash % new_num_bins;
656 ptr->
next = new_bins[hash_val];
657 new_bins[hash_val] = ptr;
658 }
while ((ptr = ptr->
fore) != 0);
671 if (new_table == 0) {
675 *new_table = *old_table;
678 if (new_table->
bins == 0) {
688 if ((ptr = old_table->
head) != 0) {
690 tailp = &new_table->
head;
698 hash_val = entry->
hash % num_bins;
699 entry->
next = new_table->
bins[hash_val];
700 new_table->
bins[hash_val] = entry;
702 *tailp = prev = entry;
703 tailp = &entry->
fore;
704 }
while ((ptr = ptr->
fore) != 0);
705 new_table->
tail = prev;
714 if (ptr->
fore == 0 && ptr->
back == 0) {
740 if (value != 0) *value =
PVAL(table,
i);
745 if (value != 0) *value = 0;
750 for (;(ptr = *prev) != 0; prev = &ptr->
next) {
754 if (value != 0) *value = ptr->
record;
761 if (value != 0) *value = 0;
776 if (value != 0) *value =
PVAL(table,
i);
781 if (value != 0) *value = 0;
787 for (; ptr != 0; ptr = ptr->
next) {
791 if (value != 0) *value = ptr->
record;
797 if (value != 0) *value = 0;
809 while (
PKEY(table,
i) != never) {
813 if (
PKEY(table,
i) == never)
continue;
826 if (ptr->
key == never) {
844 int retval, existing = 0;
852 value =
PVAL(table,
i);
856 retval = (*func)(&
key, &value, arg, existing);
870 if (!existing)
break;
885 retval = (*func)(&
key, &value, arg, existing);
896 if (!existing)
break;
927 if (
key == never)
continue;
928 retval = (*func)(
key,
val, arg);
932 if (!ptr)
goto deleted;
933 goto unpacked_continue;
939 if (
PHASH(table,
i) == 0 &&
PKEY(table,
i) == never) {
965 if (ptr->
key == never)
966 goto unpacked_continue;
968 retval = (*func)(ptr->
key, ptr->
record, arg);
972 for (tmp = table->
bins[
i]; tmp != ptr; tmp = tmp->
next) {
976 retval = (*func)(0, 0, arg, 1);
1000 }
while (ptr && table->
head);
1018 retval = (*func)(
key,
val, arg);
1045 retval = (*func)(ptr->
key, ptr->
record, arg);
1067 }
while (ptr && table->
head);
1086 retval = (*func)(
key,
val, arg);
1095 retval = (*func)(0, 0, arg, 1);
1111 if ((ptr = table->
head) != 0) {
1114 retval = (*func)(ptr->
key, ptr->
record, arg, 0);
1118 for (tmp = table->
bins[
i]; tmp != ptr; tmp = tmp->
next) {
1121 retval = (*func)(0, 0, arg, 1);
1147 }
while (ptr && table->
head);
1221 #define FNV1_32A_INIT 0x811c9dc5 1226 #define FNV_32_PRIME 0x01000193 1232 register const char *
string = (
const char *)arg;
1240 hval ^= (
unsigned int)*
string++;
1249 #ifndef UNALIGNED_WORD_ACCESS 1250 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ 1251 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD86) || \ 1252 defined(__mc68020__) 1253 # define UNALIGNED_WORD_ACCESS 1 1256 #ifndef UNALIGNED_WORD_ACCESS 1257 # define UNALIGNED_WORD_ACCESS 0 1265 #define MurmurMagic_1 (st_index_t)0xc6a4a793 1266 #define MurmurMagic_2 (st_index_t)0x5bd1e995 1268 #define MurmurMagic MurmurMagic_1 1270 #if SIZEOF_ST_INDEX_T > 4 1271 #define MurmurMagic ((MurmurMagic_1 << 32) | MurmurMagic_2) 1273 #define MurmurMagic MurmurMagic_2 1310 #define murmur_step(h, k) murmur((h), (k), 16) 1313 #define murmur1(h) murmur_step((h), 16) 1315 #define murmur1(h) murmur_step((h), 24) 1321 const char *data = ptr;
1326 #define data_at(n) (st_index_t)((unsigned char)data[(n)]) 1327 #define UNALIGNED_ADD_4 UNALIGNED_ADD(2); UNALIGNED_ADD(1); UNALIGNED_ADD(0) 1328 #if SIZEOF_ST_INDEX_T > 4 1329 #define UNALIGNED_ADD_8 UNALIGNED_ADD(6); UNALIGNED_ADD(5); UNALIGNED_ADD(4); UNALIGNED_ADD(3); UNALIGNED_ADD_4 1330 #if SIZEOF_ST_INDEX_T > 8 1331 #define UNALIGNED_ADD_16 UNALIGNED_ADD(14); UNALIGNED_ADD(13); UNALIGNED_ADD(12); UNALIGNED_ADD(11); \ 1332 UNALIGNED_ADD(10); UNALIGNED_ADD(9); UNALIGNED_ADD(8); UNALIGNED_ADD(7); UNALIGNED_ADD_8 1333 #define UNALIGNED_ADD_ALL UNALIGNED_ADD_16 1335 #define UNALIGNED_ADD_ALL UNALIGNED_ADD_8 1337 #define UNALIGNED_ADD_ALL UNALIGNED_ADD_4 1340 #if !UNALIGNED_WORD_ACCESS 1347 #ifdef WORDS_BIGENDIAN 1348 # define UNALIGNED_ADD(n) case SIZEOF_ST_INDEX_T - (n) - 1: \ 1349 t |= data_at(n) << CHAR_BIT*(SIZEOF_ST_INDEX_T - (n) - 2) 1351 # define UNALIGNED_ADD(n) case SIZEOF_ST_INDEX_T - (n) - 1: \ 1352 t |= data_at(n) << CHAR_BIT*(n) 1355 #undef UNALIGNED_ADD 1358 #ifdef WORDS_BIGENDIAN 1372 #ifdef WORDS_BIGENDIAN 1373 t = (t << sr) | (d >> sl);
1375 t = (t >> sr) | (d << sl);
1383 pack = len < (size_t)align ? (
int)len : align;
1386 #ifdef WORDS_BIGENDIAN 1387 # define UNALIGNED_ADD(n) case (n) + 1: \ 1388 d |= data_at(n) << CHAR_BIT*(SIZEOF_ST_INDEX_T - (n) - 1) 1390 # define UNALIGNED_ADD(n) case (n) + 1: \ 1391 d |= data_at(n) << CHAR_BIT*(n) 1394 #undef UNALIGNED_ADD 1396 #ifdef WORDS_BIGENDIAN 1397 t = (t << sr) | (d >> sl);
1399 t = (t >> sr) | (d << sl);
1403 if (len < (
size_t)align)
goto skip_tail;
1422 #ifdef WORDS_BIGENDIAN 1423 # define UNALIGNED_ADD(n) case (n) + 1: \ 1424 t |= data_at(n) << CHAR_BIT*(SIZEOF_ST_INDEX_T - (n) - 1) 1426 # define UNALIGNED_ADD(n) case (n) + 1: \ 1427 t |= data_at(n) << CHAR_BIT*(n) 1430 #undef UNALIGNED_ADD 1434 # if !UNALIGNED_WORD_ACCESS 1456 #ifdef WORDS_BIGENDIAN 1457 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 12*8 1460 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 8*8 1463 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 4*8 1468 #ifndef WORDS_BIGENDIAN 1469 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 4*8 1472 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 8*8 1475 #if SIZEOF_ST_INDEX_T*CHAR_BIT > 12*8 1490 #undef st_hash_start 1500 register const char *
string = (
const char *)arg;
1508 unsigned int c1, c2;
1511 c1 = (
unsigned char)*s1++;
1512 c2 = (
unsigned char)*s2++;
1513 if (c1 ==
'\0' || c2 ==
'\0') {
1514 if (c1 !=
'\0')
return 1;
1515 if (c2 !=
'\0')
return -1;
1518 if ((
unsigned int)(c1 -
'A') <= (
'Z' -
'A')) c1 +=
'a' -
'A';
1519 if ((
unsigned int)(c2 -
'A') <= (
'Z' -
'A')) c2 +=
'a' -
'A';
1532 unsigned int c1, c2;
1535 c1 = (
unsigned char)*s1++;
1536 c2 = (
unsigned char)*s2++;
1537 if (c1 ==
'\0' || c2 ==
'\0') {
1538 if (c1 !=
'\0')
return 1;
1539 if (c2 !=
'\0')
return -1;
1542 if ((
unsigned int)(c1 -
'A') <= (
'Z' -
'A')) c1 +=
'a' -
'A';
1543 if ((
unsigned int)(c2 -
'A') <= (
'Z' -
'A')) c2 +=
'a' -
'A';
1557 register const char *
string = (
const char *)arg;
1564 unsigned int c = (
unsigned char)*
string++;
1565 if ((
unsigned int)(c -
'A') <= (
'Z' -
'A')) c +=
'a' -
'A';
static st_index_t new_size(st_index_t size)
void st_cleanup_safe(st_table *table, st_data_t never)
#define PVAL_SET(table, i, v)
size_t strlen(const char *)
st_index_t st_hash_uint32(st_index_t h, uint32_t i)
static st_table_entry * new_entry(st_table *table, st_data_t key, st_data_t value, st_index_t hash_val, register st_index_t bin_pos)
static st_index_t find_packed_index(st_table *table, st_index_t hash_val, st_data_t key)
int st_update(st_table *table, st_data_t key, st_update_callback_func *func, st_data_t arg)
st_index_t st_numhash(st_data_t n)
void st_clear(st_table *table)
SSL_METHOD *(* func)(void)
st_table * st_init_strcasetable_with_size(st_index_t size)
static const struct st_hash_type type_strhash
st_index_t st_hash_start(st_index_t h)
void rb_raise(VALUE exc, const char *fmt,...)
#define st_free_entry(entry)
st_table * st_init_table_with_size(const struct st_hash_type *type, st_index_t size)
st_table * st_init_numtable(void)
struct st_table::@84::@86 packed
#define st_dealloc_table(table)
static void add_packed_direct(st_table *table, st_data_t key, st_data_t value, st_index_t hash_val)
int st_strncasecmp(const char *s1, const char *s2, size_t n)
#define ST_DEFAULT_MAX_DENSITY
static void unpack_entries(register st_table *table)
unsigned int entries_packed
#define FIND_ENTRY(table, ptr, hash_val, bin_pos)
const struct st_hash_type st_hashtype_num
st_table * st_init_strtable_with_size(st_index_t size)
#define MEMZERO(p, type, n)
st_table * st_init_strtable(void)
#define SIZEOF_ST_INDEX_T
st_table * st_init_strcasetable(void)
st_index_t st_hash_end(st_index_t h)
#define st_alloc_bins(size)
#define UNALIGNED_ADD_ALL
static st_index_t murmur_finish(st_index_t h)
#define murmur_step(h, k)
static st_index_t murmur(st_index_t h, st_index_t k, int r)
int st_get_key(st_table *table, register st_data_t key, st_data_t *result)
static void add_direct(st_table *table, st_data_t key, st_data_t value, st_index_t hash_val, register st_index_t bin_pos)
static const unsigned int primes[]
static st_index_t strhash(st_data_t)
#define PHASH_SET(table, i, v)
int st_delete(register st_table *table, register st_data_t *key, st_data_t *value)
static st_table_entry * find_entry(st_table *table, st_data_t key, st_index_t hash_val, st_index_t bin_pos)
#define STATIC_ASSERT(name, expr)
static st_table_entry ** st_realloc_bins(st_table_entry **bins, st_index_t newsize, st_index_t oldsize)
#define MEMCPY(p1, p2, type, n)
static st_index_t find_packed_index_from(st_table *table, st_index_t hash_val, st_data_t key, st_index_t i)
int st_foreach(st_table *table, int(*func)(ANYARGS), st_data_t arg)
struct st_table_entry * head
static void rehash(st_table *)
int st_foreach_check(st_table *table, int(*func)(ANYARGS), st_data_t arg, st_data_t never)
st_index_t st_hash(const void *ptr, size_t len, st_index_t h)
static const struct st_hash_type type_strcasehash
#define MEMMOVE(p1, p2, type, n)
static void remove_safe_packed_entry(st_table *table, st_index_t i, st_data_t never)
#define PTR_NOT_EQUAL(table, ptr, hash_val, key)
struct st_table_entry ** bins
#define ST_DEFAULT_SECOND_TABLE_SIZE
int st_lookup(st_table *table, register st_data_t key, st_data_t *value)
#define st_free_bins(bins, size)
int st_delete_safe(register st_table *table, register st_data_t *key, st_data_t *value, st_data_t never)
static void remove_packed_entry(st_table *table, st_index_t i)
st_table * st_copy(st_table *old_table)
int st_insert2(register st_table *table, register st_data_t key, st_data_t value, st_data_t(*func)(st_data_t))
#define do_hash(key, table)
void st_add_direct(st_table *table, st_data_t key, st_data_t value)
#define EQUAL(table, x, y)
#define ST_DEFAULT_PACKED_TABLE_SIZE
int st_reverse_foreach(st_table *, int(*)(ANYARGS), st_data_t)
const struct st_hash_type * type
static unsigned int hash(const char *str, unsigned int len)
int st_numcmp(st_data_t x, st_data_t y)
#define ST_DEFAULT_INIT_TABLE_SIZE
int st_strcasecmp(const char *s1, const char *s2)
#define PACKED_BINS(table)
struct st_packed_entry st_packed_entry
void st_free_table(st_table *table)
static st_index_t strcasehash(st_data_t)
size_t st_memsize(const st_table *table)
st_index_t st_hash_uint(st_index_t h, st_index_t i)
struct st_table_entry * tail
int st_update_callback_func(st_data_t *key, st_data_t *value, st_data_t arg, int existing)
st_table * st_init_table(const struct st_hash_type *type)
static void remove_entry(st_table *table, st_table_entry *ptr)
st_table * st_init_numtable_with_size(st_index_t size)
#define PACKED_ENT(table, i)
int st_insert(register st_table *table, register st_data_t key, st_data_t value)
#define PKEY_SET(table, i, v)