/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#define DJB2_HASH_FUNCTION
-//#define FNV_HASH_FUNCTION
-
#include <string.h>
#include <stdio.h>
#include "xbt/ex.h"
#include "xbt/log.h"
#include "xbt/mallocator.h"
#include "xbt_modinter.h"
+#include "xbt/str.h"
#include "dict_private.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_dict, xbt,
return (dict ? (unsigned int) dict->count : (unsigned int) 0);
}
-/**
- * Returns the hash code of a string.
- */
-static XBT_INLINE unsigned int xbt_dict_hash_ext(const char *str,
- int str_len)
-{
-
-
-#ifdef DJB2_HASH_FUNCTION
- /* fast implementation of djb2 algorithm */
- int c;
- register unsigned int hash = 5381;
-
- while (str_len--) {
- c = *str++;
- hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
- }
-# elif defined(FNV_HASH_FUNCTION)
- register unsigned int hash = 0x811c9dc5;
- unsigned char *bp = (unsigned char *) str; /* start of buffer */
- unsigned char *be = bp + str_len; /* beyond end of buffer */
-
- while (bp < be) {
- /* multiply by the 32 bit FNV magic prime mod 2^32 */
- hash +=
- (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) +
- (hash << 24);
-
- /* xor the bottom with the current octet */
- hash ^= (unsigned int) *bp++;
- }
-
-# else
- register unsigned int hash = 0;
-
- while (str_len--) {
- hash += (*str) * (*str);
- str++;
- }
-#endif
-
- return hash;
-}
-
-static XBT_INLINE unsigned int xbt_dict_hash(const char *str)
-{
-#ifdef DJB2_HASH_FUNCTION
- /* fast implementation of djb2 algorithm */
- int c;
- register unsigned int hash = 5381;
-
- while ((c = *str++)) {
- hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
- }
-
-# elif defined(FNV_HASH_FUNCTION)
- register unsigned int hash = 0x811c9dc5;
-
- while (*str) {
- /* multiply by the 32 bit FNV magic prime mod 2^32 */
- hash +=
- (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) +
- (hash << 24);
-
- /* xor the bottom with the current byte */
- hash ^= (unsigned int) *str++;
- }
-
-# else
- register unsigned int hash = 0;
-
- while (*str) {
- hash += (*str) * (*str);
- str++;
- }
-#endif
- return hash;
-}
-
/* Expend the size of the dict */
static void xbt_dict_rehash(xbt_dict_t dict)
{
void *data, void_f_pvoid_t free_ctn)
{
- unsigned int hash_code = xbt_dict_hash_ext(key, key_len);
+ unsigned int hash_code = xbt_str_hash_ext(key, key_len);
xbt_dictelm_t current, previous = NULL;
xbt_assert(dict);
- XBT_DEBUG("ADD %.*s hash = %d, size = %d, & = %d", key_len, key, hash_code,
+ XBT_DEBUG("ADD %.*s hash = %u, size = %d, & = %u", key_len, key, hash_code,
dict->table_size, hash_code & dict->table_size);
current = dict->table[hash_code & dict->table_size];
while (current != NULL &&
{
- unsigned int hash_code = xbt_dict_hash_ext(key, key_len);
+ unsigned int hash_code = xbt_str_hash_ext(key, key_len);
xbt_dictelm_t current;
xbt_assert(dict);
int key_len)
{
- unsigned int hash_code = xbt_dict_hash_ext(key, key_len);
+ unsigned int hash_code = xbt_str_hash_ext(key, key_len);
xbt_dictelm_t current;
xbt_assert(dict);
XBT_INLINE void *xbt_dict_get(xbt_dict_t dict, const char *key)
{
- unsigned int hash_code = xbt_dict_hash(key);
+ unsigned int hash_code = xbt_str_hash(key);
xbt_dictelm_t current;
xbt_assert(dict);
*/
XBT_INLINE void *xbt_dict_get_or_null(xbt_dict_t dict, const char *key)
{
- unsigned int hash_code = xbt_dict_hash(key);
+ unsigned int hash_code = xbt_str_hash(key);
xbt_dictelm_t current;
xbt_assert(dict);
{
- unsigned int hash_code = xbt_dict_hash_ext(key, key_len);
+ unsigned int hash_code = xbt_str_hash_ext(key, key_len);
xbt_dictelm_t current, previous = NULL;
xbt_assert(dict);
continue;
if (size == 0)
continue;
- printf("%delm x %u cells; ", count, size);
+ printf("%uelm x %u cells; ", count, size);
}
}
printf("\n");
*/
void xbt_dict_preinit(void)
{
- if (dict_elm_mallocator != NULL) {
- /* Already created. I guess we want to switch to MC mode, so kill the previously created mallocator */
- xbt_mallocator_free(dict_elm_mallocator);
- xbt_mallocator_free(dict_het_elm_mallocator);
- }
-
dict_elm_mallocator = xbt_mallocator_new(256,
dict_elm_mallocator_new_f,
dict_elm_mallocator_free_f,
continue;
if (size == 0)
continue;
- printf("%delm x %d cells; ", count, size);
+ printf("%uelm x %d cells; ", count, size);
avg += count * size;
total_count += size;
}
#include "xbt/ex.h"
#include "portable.h"
-XBT_LOG_EXTERNAL_CATEGORY(xbt_dict);
-XBT_LOG_DEFAULT_CATEGORY(xbt_dict);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(xbt_dict);
XBT_TEST_SUITE("dict", "Dict data container");
xbt_dict_t head = NULL;
int i, j, k;
char *key;
- void *data;
srand((unsigned int) time(NULL));
xbt_test_add("Search my %d elements 20 times", NB_ELM);
key = xbt_malloc(10);
for (i = 0; i < 20; i++) {
+ void *data;
/* if (i%10) printf("."); else printf("%d",i/10); fflush(stdout); */
for (j = 0; j < NB_ELM; j++) {