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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5181 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
Lionel Gauthier
2014-03-18 10:23:02 +00:00
parent 4824fdf743
commit 294c342747
1 changed files with 155 additions and 152 deletions
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common/utils/collection/hashtable/hashtable.c
+155 -152
View File
@@ -5,6 +5,7 @@
#include <stdio.h>
#include <stdlib.h>
#include "hashtable.h"
#include "assertions.h"
//-------------------------------------------------------------------------------------------------------------------------------
@@ -37,7 +38,7 @@ void hash_free_int_func(void* memoryP){}
static hash_size_t def_hashfunc(const uint64_t keyP)
{
return (hash_size_t)keyP;
return (hash_size_t)keyP;
}
//-------------------------------------------------------------------------------------------------------------------------------
@@ -49,24 +50,26 @@ static hash_size_t def_hashfunc(const uint64_t keyP)
*/
hash_table_t *hashtable_create(hash_size_t sizeP, hash_size_t (*hashfuncP)(const uint64_t ), void (*freefuncP)(void*))
{
hash_table_t *hashtbl;
hash_table_t *hashtbl = NULL;
if(!(hashtbl=malloc(sizeof(hash_table_t)))) return NULL;
if(!(hashtbl=malloc(sizeof(hash_table_t)))) {
return NULL;
}
if(!(hashtbl->nodes=calloc(sizeP, sizeof(hash_node_t*)))) {
free(hashtbl);
return NULL;
}
if(!(hashtbl->nodes=calloc(sizeP, sizeof(hash_node_t*)))) {
free(hashtbl);
return NULL;
}
hashtbl->size=sizeP;
hashtbl->size=sizeP;
if(hashfuncP) hashtbl->hashfunc=hashfuncP;
else hashtbl->hashfunc=def_hashfunc;
if(hashfuncP) hashtbl->hashfunc=hashfuncP;
else hashtbl->hashfunc=def_hashfunc;
if(freefuncP) hashtbl->freefunc=freefuncP;
else hashtbl->freefunc=free;
if(freefuncP) hashtbl->freefunc=freefuncP;
else hashtbl->freefunc=free;
return hashtbl;
return hashtbl;
}
//-------------------------------------------------------------------------------------------------------------------------------
/*
@@ -75,71 +78,71 @@ hash_table_t *hashtable_create(hash_size_t sizeP, hash_size_t (*hashfuncP)(const
*/
hashtable_rc_t hashtable_destroy(hash_table_t *hashtblP)
{
hash_size_t n;
hash_node_t *node, *oldnode;
hash_size_t n;
hash_node_t *node, *oldnode;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
for(n=0; n<hashtblP->size; ++n) {
node=hashtblP->nodes[n];
while(node) {
oldnode=node;
node=node->next;
if (oldnode->data) {
hashtblP->freefunc(oldnode->data);
}
free(oldnode);
}
}
free(hashtblP->nodes);
free(hashtblP);
return HASH_TABLE_OK;
for(n=0; n<hashtblP->size; ++n) {
node=hashtblP->nodes[n];
while(node) {
oldnode=node;
node=node->next;
if (oldnode->data) {
hashtblP->freefunc(oldnode->data);
}
free(oldnode);
}
}
free(hashtblP->nodes);
free(hashtblP);
return HASH_TABLE_OK;
}
//-------------------------------------------------------------------------------------------------------------------------------
hashtable_rc_t hashtable_is_key_exists (hash_table_t *hashtblP, const uint64_t keyP)
//-------------------------------------------------------------------------------------------------------------------------------
{
hash_node_t *node;
hash_size_t hash;
hash_node_t *node;
hash_size_t hash;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
node=hashtblP->nodes[hash];
while(node) {
if(node->key == keyP) {
return HASH_TABLE_OK;
}
node=node->next;
}
return HASH_TABLE_KEY_NOT_EXISTS;
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
node=hashtblP->nodes[hash];
while(node) {
if(node->key == keyP) {
return HASH_TABLE_OK;
}
node=node->next;
}
return HASH_TABLE_KEY_NOT_EXISTS;
}
//-------------------------------------------------------------------------------------------------------------------------------
hashtable_rc_t hashtable_apply_funct_on_elements (hash_table_t *hashtblP, void functP(uint64_t keyP, void* dataP, void* parameterP), void* parameterP)
//-------------------------------------------------------------------------------------------------------------------------------
{
hash_node_t *node = NULL;
unsigned int i = 0;
unsigned int num_elements = 0;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
while ((num_elements < hashtblP->num_elements) && (i < hashtblP->size)) {
if (hashtblP->nodes[i] != NULL) {
node=hashtblP->nodes[i];
while(node) {
num_elements += 1;
functP(node->key, node->data, parameterP);
node=node->next;
}
}
i += 1;
}
return HASH_TABLE_OK;
hash_node_t *node = NULL;
unsigned int i = 0;
unsigned int num_elements = 0;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
while ((num_elements < hashtblP->num_elements) && (i < hashtblP->size)) {
if (hashtblP->nodes[i] != NULL) {
node=hashtblP->nodes[i];
while(node) {
num_elements += 1;
functP(node->key, node->data, parameterP);
node=node->next;
}
}
i += 1;
}
return HASH_TABLE_OK;
}
//-------------------------------------------------------------------------------------------------------------------------------
/*
@@ -148,35 +151,35 @@ hashtable_rc_t hashtable_apply_funct_on_elements (hash_table_t *hashtblP, void f
*/
hashtable_rc_t hashtable_insert(hash_table_t *hashtblP, const uint64_t keyP, void *dataP)
{
hash_node_t *node;
hash_size_t hash;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
hash_node_t *node;
hash_size_t hash;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
node=hashtblP->nodes[hash];
while(node) {
if(node->key == keyP) {
if (node->data) {
hashtblP->freefunc(node->data);
}
node->data=dataP;
return HASH_TABLE_INSERT_OVERWRITTEN_DATA;
}
node=node->next;
}
if(!(node=malloc(sizeof(hash_node_t)))) return -1;
node->key=keyP;
node->data=dataP;
if (hashtblP->nodes[hash]) {
node->next=hashtblP->nodes[hash];
} else {
node->next = NULL;
}
hashtblP->nodes[hash]=node;
hashtblP->num_elements += 1;
return HASH_TABLE_OK;
node=hashtblP->nodes[hash];
while(node) {
if(node->key == keyP) {
if (node->data) {
hashtblP->freefunc(node->data);
}
node->data=dataP;
return HASH_TABLE_INSERT_OVERWRITTEN_DATA;
}
node=node->next;
}
if(!(node=malloc(sizeof(hash_node_t)))) return -1;
node->key=keyP;
node->data=dataP;
if (hashtblP->nodes[hash]) {
node->next=hashtblP->nodes[hash];
} else {
node->next = NULL;
}
hashtblP->nodes[hash]=node;
hashtblP->num_elements += 1;
return HASH_TABLE_OK;
}
//-------------------------------------------------------------------------------------------------------------------------------
/*
@@ -185,29 +188,29 @@ hashtable_rc_t hashtable_insert(hash_table_t *hashtblP, const uint64_t keyP, voi
*/
hashtable_rc_t hashtable_remove(hash_table_t *hashtblP, const uint64_t keyP)
{
hash_node_t *node, *prevnode=NULL;
hash_size_t hash;
hash_node_t *node, *prevnode=NULL;
hash_size_t hash;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
node=hashtblP->nodes[hash];
while(node) {
if(node->key != keyP) {
if(prevnode) prevnode->next=node->next;
else hashtblP->nodes[hash]=node->next;
if (node->data) {
hashtblP->freefunc(node->data);
}
free(node);
hashtblP->num_elements -= 1;
return HASH_TABLE_OK;
}
prevnode=node;
node=node->next;
}
return HASH_TABLE_KEY_NOT_EXISTS;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
node=hashtblP->nodes[hash];
while(node) {
if(node->key != keyP) {
if(prevnode) prevnode->next=node->next;
else hashtblP->nodes[hash]=node->next;
if (node->data) {
hashtblP->freefunc(node->data);
}
free(node);
hashtblP->num_elements -= 1;
return HASH_TABLE_OK;
}
prevnode=node;
node=node->next;
}
return HASH_TABLE_KEY_NOT_EXISTS;
}
//-------------------------------------------------------------------------------------------------------------------------------
/*
@@ -216,27 +219,27 @@ hashtable_rc_t hashtable_remove(hash_table_t *hashtblP, const uint64_t keyP)
*/
hashtable_rc_t hashtable_get(hash_table_t *hashtblP, const uint64_t keyP, void** dataP)
{
hash_node_t *node;
hash_size_t hash;
hash_node_t *node;
hash_size_t hash;
if (hashtblP == NULL) {
*dataP = NULL;
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
if (hashtblP == NULL) {
*dataP = NULL;
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
hash=hashtblP->hashfunc(keyP)%hashtblP->size;
/* fprintf(stderr, "hashtable_get() key=%s, hash=%d\n", key, hash);*/
node=hashtblP->nodes[hash];
node=hashtblP->nodes[hash];
while(node) {
if(node->key == keyP) {
*dataP = node->data;
return HASH_TABLE_OK;
}
node=node->next;
}
*dataP = NULL;
return HASH_TABLE_KEY_NOT_EXISTS;
while(node) {
if(node->key == keyP) {
*dataP = node->data;
return HASH_TABLE_OK;
}
node=node->next;
}
*dataP = NULL;
return HASH_TABLE_KEY_NOT_EXISTS;
}
//-------------------------------------------------------------------------------------------------------------------------------
/*
@@ -252,34 +255,34 @@ hashtable_rc_t hashtable_get(hash_table_t *hashtblP, const uint64_t keyP, void**
hashtable_rc_t hashtable_resize(hash_table_t *hashtblP, hash_size_t sizeP)
{
hash_table_t newtbl;
hash_size_t n;
hash_node_t *node,*next;
hash_table_t newtbl;
hash_size_t n;
hash_node_t *node,*next;
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
if (hashtblP == NULL) {
return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
}
newtbl.size = sizeP;
newtbl.hashfunc = hashtblP->hashfunc;
newtbl.size = sizeP;
newtbl.hashfunc = hashtblP->hashfunc;
if(!(newtbl.nodes=calloc(sizeP, sizeof(hash_node_t*)))) return -1;
if(!(newtbl.nodes=calloc(sizeP, sizeof(hash_node_t*)))) return -1;
for(n=0; n<hashtblP->size; ++n) {
for(node=hashtblP->nodes[n]; node; node=next) {
next = node->next;
hashtable_insert(&newtbl, node->key, node->data);
// Lionel GAUTHIER: BAD CODE TO BE REWRITTEN
hashtable_remove(hashtblP, node->key);
for(n=0; n<hashtblP->size; ++n) {
for(node=hashtblP->nodes[n]; node; node=next) {
next = node->next;
hashtable_insert(&newtbl, node->key, node->data);
// Lionel GAUTHIER: BAD CODE TO BE REWRITTEN
hashtable_remove(hashtblP, node->key);
}
}
}
}
free(hashtblP->nodes);
hashtblP->size=newtbl.size;
hashtblP->nodes=newtbl.nodes;
free(hashtblP->nodes);
hashtblP->size=newtbl.size;
hashtblP->nodes=newtbl.nodes;
return HASH_TABLE_OK;
return HASH_TABLE_OK;
}