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-rw-r--r--lib/hashtable.h109
1 files changed, 0 insertions, 109 deletions
diff --git a/lib/hashtable.h b/lib/hashtable.h
deleted file mode 100644
index ff501cc..0000000
--- a/lib/hashtable.h
+++ /dev/null
@@ -1,109 +0,0 @@
-#ifndef __HASHMAP__
-#define __HASHMAP__
-
-#include <openssl/sha.h>
-#include <string.h>
-#include "circulardoublelinkedlist.h"
-#include "util.h"
-
-struct ht_item {
- char *hash;
- void *data;
- unsigned int data_length;
- struct list list;
-};
-
-struct hashtable {
- struct ht_item **begin;
- unsigned int length;
- unsigned int hash_length;
- void (*hash_function)(void *data, unsigned int data_length, char *res);
-};
-
-
-int __ht_init(struct hashtable *ht, unsigned int number_elem,
- unsigned int hash_length, void (*func)(void *data,
- unsigned int data_length, char *res))
-{
- ht->begin = xmalloc(sizeof(struct ht_item)*number_elem);
- ht->length = number_elem;
- ht->hash_length = hash_length;
- ht->hash_function = func;
-}
-
-void compute_hash_sha1(void *data, unsigned int data_length, char *res)
-{
- SHA_CTX sha1;
-
- SHA1_Init(&sha1);
- SHA1_Update(&sha1, data, data_length);
- SHA1_Final(res, &sha1);
-
-}
-
-int ht_init_sha1(struct hashtable *ht)
-{
- __ht_init(ht, 300, 20, compute_hash_sha1);
-}
-
-void *ht_is_in_list(struct list *list, char *hash, int hash_length)
-{
- struct list *head, *iter;
- struct ht_item *res = NULL;
-
- head = list;
- res = CONTAINER_OF(head, struct ht_item, list);
- if(memcmp(res->hash, hash, hash_length) == 0)
- return res->data;
-
- LIST_FOR_EACH(iter,head) {
- res = CONTAINER_OF(iter, struct ht_item, list);
- if(memcmp(res->hash, hash, hash_length) == 0)
- return res->data;
- }
-
- return NULL;
-}
-
-void ht_add(struct hashtable *ht, void *data, unsigned int data_length,
- void *key, unsigned int key_length)
-{
- unsigned long index;
- struct ht_item *new_elem = xmalloc(sizeof(struct ht_item));
- new_elem->hash = xmalloc(ht->hash_length);
- new_elem->data = xmalloc(data_length);
-
- memcpy(new_elem->data, data, data_length);
- new_elem->data_length = data_length;
- LIST_INIT(&new_elem->list);
-
- ht->hash_function(key, key_length, new_elem->hash);
- memcpy(&index, new_elem->hash, sizeof(unsigned long));
- index = index % ht->length;
-
- if(ht->begin[index] == NULL) {
- ht->begin[index] = new_elem;
- return;
- }
-
- if(ht_is_in_list(&(ht->begin[index]->list), new_elem->hash,
- ht->hash_length) == NULL) {
- list_insert_after(&(ht->begin[index]->list), &new_elem->list);
- printf("kollision\n");
- return;
- }
-}
-
-void *ht_get(struct hashtable *ht, void *key, unsigned int key_length)
-{
- char *hash = xmalloc(ht->hash_length);
- unsigned long index;
-
- ht->hash_function(key, key_length, hash);
- memcpy(&index, hash, sizeof(unsigned long));
- index = index % ht->length;
-
- return ht_is_in_list(&(ht->begin[index]->list), hash, ht->hash_length);
-}
-
-#endif