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Update capwap hash

This commit is contained in:
vemax78 2014-01-18 19:11:07 +01:00
parent e342d5c1a3
commit 9dbd940a00
2 changed files with 61 additions and 25 deletions
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76
src/common/capwap_hash.c
View File

@ -7,7 +7,7 @@ static void capwap_hash_free_item(struct capwap_hash* hash, struct capwap_hash_i
ASSERT(item != NULL);
ASSERT(item->key != NULL);
if (item->data) {
if (item->data && hash->item_free) {
hash->item_free(item->key, hash->keysize, item->data);
}
@ -34,7 +34,7 @@ static void capwap_hash_free_items(struct capwap_hash* hash, struct capwap_hash_
}
/* */
static struct capwap_hash_item* capwap_hash_search_items(struct capwap_hash* hash, struct capwap_hash_item* item, void* key) {
static struct capwap_hash_item* capwap_hash_search_items(struct capwap_hash* hash, struct capwap_hash_item* item, const void* key) {
int result;
struct capwap_hash_item* search;
@ -89,7 +89,7 @@ static int capwap_hash_foreach_items(struct capwap_hash* hash, struct capwap_has
}
/* */
static struct capwap_hash_item* capwap_hash_create_item(struct capwap_hash* hash, void* key, void* data) {
static struct capwap_hash_item* capwap_hash_create_item(struct capwap_hash* hash, const void* key, void* data) {
struct capwap_hash_item* item;
ASSERT(hash != NULL);
@ -245,6 +245,11 @@ static void capwap_hash_balance_tree(struct capwap_hash_item* item, struct capwa
}
}
/* */
static int capwap_hash_item_memcmp(const void* key1, const void* key2, unsigned long keysize) {
return memcmp(key1, key2, keysize);
}
/* */
struct capwap_hash* capwap_hash_create(unsigned long count, unsigned long keysize, capwap_hash_item_gethash item_hash, capwap_hash_item_cmp item_cmp, capwap_hash_item_free item_free) {
unsigned long size;
@ -253,8 +258,6 @@ struct capwap_hash* capwap_hash_create(unsigned long count, unsigned long keysiz
ASSERT(count > 0);
ASSERT(keysize > 0);
ASSERT(item_hash != NULL);
ASSERT(item_cmp != NULL);
ASSERT(item_free != NULL);
size = sizeof(struct capwap_hash_item*) * count;
@ -265,7 +268,7 @@ struct capwap_hash* capwap_hash_create(unsigned long count, unsigned long keysiz
hash->items = (struct capwap_hash_item**)capwap_alloc(size);
memset(hash->items, 0, size);
hash->item_hash = item_hash;
hash->item_cmp = item_cmp;
hash->item_cmp = (item_cmp ? item_cmp : capwap_hash_item_memcmp);
hash->item_free = item_free;
return hash;
@ -273,23 +276,18 @@ struct capwap_hash* capwap_hash_create(unsigned long count, unsigned long keysiz
/* */
void capwap_hash_free(struct capwap_hash* hash) {
unsigned long i;
ASSERT(hash != NULL);
for (i = 0; i < hash->count; i++) {
if (hash->items[i]) {
capwap_hash_free_items(hash, hash->items[i]);
}
}
/* Delete all items */
capwap_hash_deleteall(hash);
/* */
/* Free */
capwap_free(hash->items);
capwap_free(hash);
}
/* */
void capwap_hash_add(struct capwap_hash* hash, void* key, void* data) {
void capwap_hash_add(struct capwap_hash* hash, const void* key, void* data) {
int result;
unsigned long hashvalue;
struct capwap_hash_item* search;
@ -298,7 +296,7 @@ void capwap_hash_add(struct capwap_hash* hash, void* key, void* data) {
ASSERT(hash != NULL);
ASSERT(key != NULL);
hashvalue = hash->item_hash(key, hash->keysize);
hashvalue = hash->item_hash(key, hash->keysize, hash->count);
/* Search position where insert item */
search = hash->items[hashvalue];
@ -309,7 +307,7 @@ void capwap_hash_add(struct capwap_hash* hash, void* key, void* data) {
result = hash->item_cmp(key, search->key, hash->keysize);
if (!result) {
/* Free old element and update data value without create new item */
if (search->data) {
if (search->data && hash->item_free) {
hash->item_free(search->key, hash->keysize, search->data);
}
@ -346,7 +344,7 @@ void capwap_hash_add(struct capwap_hash* hash, void* key, void* data) {
}
/* */
void capwap_hash_delete(struct capwap_hash* hash, void* key) {
void capwap_hash_delete(struct capwap_hash* hash, const void* key) {
unsigned long hashvalue;
struct capwap_hash_item* search;
struct capwap_hash_item* parent;
@ -355,7 +353,7 @@ void capwap_hash_delete(struct capwap_hash* hash, void* key) {
ASSERT(key != NULL);
/* */
hashvalue = hash->item_hash(key, hash->keysize);
hashvalue = hash->item_hash(key, hash->keysize, hash->count);
if (!hash->items[hashvalue]) {
return;
}
@ -461,7 +459,22 @@ void capwap_hash_delete(struct capwap_hash* hash, void* key) {
}
/* */
void* capwap_hash_search(struct capwap_hash* hash, void* key) {
void capwap_hash_deleteall(struct capwap_hash* hash) {
unsigned long i;
ASSERT(hash != NULL);
for (i = 0; i < hash->count; i++) {
if (hash->items[i]) {
capwap_hash_free_items(hash, hash->items[i]);
hash->items[i] = NULL;
}
}
}
/* */
int capwap_hash_hasitem(struct capwap_hash* hash, const void* key) {
unsigned long hashvalue;
struct capwap_hash_item* items;
struct capwap_hash_item* result;
@ -470,7 +483,28 @@ void* capwap_hash_search(struct capwap_hash* hash, void* key) {
ASSERT(key != NULL);
/* Search item */
hashvalue = hash->item_hash(key, hash->keysize);
hashvalue = hash->item_hash(key, hash->keysize, hash->count);
items = hash->items[hashvalue];
if (!items) {
return 0;
}
/* */
result = capwap_hash_search_items(hash, items, key);
return (result ? 1 : 0);
}
/* */
void* capwap_hash_search(struct capwap_hash* hash, const void* key) {
unsigned long hashvalue;
struct capwap_hash_item* items;
struct capwap_hash_item* result;
ASSERT(hash != NULL);
ASSERT(key != NULL);
/* Search item */
hashvalue = hash->item_hash(key, hash->keysize, hash->count);
items = hash->items[hashvalue];
if (!items) {
return NULL;

10
src/common/capwap_hash.h
View File

@ -1,7 +1,7 @@
#ifndef __CAPWAP_HASH_HEADER__
#define __CAPWAP_HASH_HEADER__
typedef unsigned long (*capwap_hash_item_gethash)(const void* key, unsigned long keysize);
typedef unsigned long (*capwap_hash_item_gethash)(const void* key, unsigned long keysize, unsigned long hashsize);
typedef int (*capwap_hash_item_cmp)(const void* key1, const void* key2, unsigned long keysize);
typedef void (*capwap_hash_item_free)(const void* key, unsigned long keysize, void* data);
@ -32,10 +32,12 @@ struct capwap_hash {
struct capwap_hash* capwap_hash_create(unsigned long count, unsigned long keysize, capwap_hash_item_gethash item_hash, capwap_hash_item_cmp item_cmp, capwap_hash_item_free item_free);
void capwap_hash_free(struct capwap_hash* hash);
void capwap_hash_add(struct capwap_hash* hash, void* key, void* data);
void capwap_hash_delete(struct capwap_hash* hash, void* key);
void capwap_hash_add(struct capwap_hash* hash, const void* key, void* data);
void capwap_hash_delete(struct capwap_hash* hash, const void* key);
void capwap_hash_deleteall(struct capwap_hash* hash);
void* capwap_hash_search(struct capwap_hash* hash, void* key);
int capwap_hash_hasitem(struct capwap_hash* hash, const void* key);
void* capwap_hash_search(struct capwap_hash* hash, const void* key);
void capwap_hash_foreach(struct capwap_hash* hash, capwap_hash_item_foreach item_foreach, void* param);
#endif /* __CAPWAP_HASH_HEADER__ */