Update
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4795 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
@@ -12,6 +12,7 @@ typedef enum hashtable_return_code_e {
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HASH_TABLE_KEY_NOT_EXISTS = 2,
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HASH_TABLE_KEY_ALREADY_EXISTS = 3,
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HASH_TABLE_BAD_PARAMETER_HASHTABLE = 4,
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HASH_TABLE_SYSTEM_ERROR = 5,
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HASH_TABLE_CODE_MAX
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} hashtable_rc_t;
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@@ -14,11 +14,11 @@
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static hash_size_t def_hashfunc(const void *keyP, int key_sizeP)
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{
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hash_size_t hash=0;
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hash_size_t hash=0;
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while(key_sizeP) hash^=((unsigned char*)keyP)[key_sizeP --];
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while(key_sizeP) hash^=((unsigned char*)keyP)[key_sizeP --];
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return hash;
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return hash;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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@@ -30,27 +30,27 @@ static hash_size_t def_hashfunc(const void *keyP, int key_sizeP)
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*/
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obj_hash_table_t *obj_hashtable_create(hash_size_t sizeP, hash_size_t (*hashfuncP)(const void*, int ), void (*freekeyfuncP)(void*), void (*freedatafuncP)(void*))
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{
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obj_hash_table_t *hashtbl;
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obj_hash_table_t *hashtbl;
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if(!(hashtbl=malloc(sizeof(obj_hash_table_t)))) return NULL;
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if(!(hashtbl=malloc(sizeof(obj_hash_table_t)))) return NULL;
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if(!(hashtbl->nodes=calloc(sizeP, sizeof(obj_hash_node_t*)))) {
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free(hashtbl);
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return NULL;
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}
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if(!(hashtbl->nodes=calloc(sizeP, sizeof(obj_hash_node_t*)))) {
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free(hashtbl);
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return NULL;
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}
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hashtbl->size=sizeP;
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hashtbl->size=sizeP;
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if(hashfuncP) hashtbl->hashfunc=hashfuncP;
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else hashtbl->hashfunc=def_hashfunc;
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if(hashfuncP) hashtbl->hashfunc=hashfuncP;
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else hashtbl->hashfunc=def_hashfunc;
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if(freekeyfuncP) hashtbl->freekeyfunc=freekeyfuncP;
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else hashtbl->freekeyfunc=free;
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if(freekeyfuncP) hashtbl->freekeyfunc=freekeyfuncP;
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else hashtbl->freekeyfunc=free;
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if(freedatafuncP) hashtbl->freedatafunc=freedatafuncP;
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else hashtbl->freedatafunc=free;
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if(freedatafuncP) hashtbl->freedatafunc=freedatafuncP;
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else hashtbl->freedatafunc=free;
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return hashtbl;
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return hashtbl;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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@@ -59,42 +59,46 @@ obj_hash_table_t *obj_hashtable_create(hash_size_t sizeP, hash_size_t (*hashfunc
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*/
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hashtable_rc_t obj_hashtable_destroy(obj_hash_table_t *hashtblP)
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{
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hash_size_t n;
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obj_hash_node_t *node, *oldnode;
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hash_size_t n;
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obj_hash_node_t *node, *oldnode;
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for(n=0; n<hashtblP->size; ++n) {
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node=hashtblP->nodes[n];
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while(node) {
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oldnode=node;
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node=node->next;
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hashtblP->freekeyfunc(oldnode->key);
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hashtblP->freedatafunc(oldnode->data);
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free(oldnode);
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}
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}
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free(hashtblP->nodes);
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free(hashtblP);
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return HASH_TABLE_OK;
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for(n=0; n<hashtblP->size; ++n) {
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node=hashtblP->nodes[n];
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while(node) {
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oldnode=node;
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node=node->next;
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hashtblP->freekeyfunc(oldnode->key);
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hashtblP->freedatafunc(oldnode->data);
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free(oldnode);
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}
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}
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free(hashtblP->nodes);
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free(hashtblP);
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return HASH_TABLE_OK;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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hashtable_rc_t obj_hashtable_is_key_exists (obj_hash_table_t *hashtblP, void* keyP, int key_sizeP)
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//-------------------------------------------------------------------------------------------------------------------------------
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{
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obj_hash_node_t *node;
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hash_size_t hash;
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obj_hash_node_t *node;
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hash_size_t hash;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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return HASH_TABLE_OK;
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}
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node=node->next;
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}
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return HASH_TABLE_KEY_NOT_EXISTS;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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return HASH_TABLE_OK;
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} else if (node->key_size == key_sizeP) {
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if (memcmp(node->key, keyP, key_sizeP) == 0) {
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return HASH_TABLE_OK;
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}
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}
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node=node->next;
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}
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return HASH_TABLE_KEY_NOT_EXISTS;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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@@ -103,35 +107,35 @@ hashtable_rc_t obj_hashtable_is_key_exists (obj_hash_table_t *hashtblP, void* ke
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*/
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hashtable_rc_t obj_hashtable_insert(obj_hash_table_t *hashtblP, void* keyP, int key_sizeP, void *dataP)
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{
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obj_hash_node_t *node;
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hash_size_t hash;
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obj_hash_node_t *node;
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hash_size_t hash;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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if (node->data) {
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hashtblP->freedatafunc(node->data);
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}
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node->data=dataP;
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// waste of memory here (keyP is lost) we should free it now
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return HASH_TABLE_INSERT_OVERWRITTEN_DATA;
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}
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node=node->next;
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}
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if(!(node=malloc(sizeof(obj_hash_node_t)))) return -1;
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node->key=keyP;
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node->data=dataP;
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if (hashtblP->nodes[hash]) {
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node->next=hashtblP->nodes[hash];
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} else {
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node->next = NULL;
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}
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hashtblP->nodes[hash]=node;
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return HASH_TABLE_OK;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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if (node->data) {
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hashtblP->freedatafunc(node->data);
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}
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node->data=dataP;
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// waste of memory here (keyP is lost) we should free it now
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return HASH_TABLE_INSERT_OVERWRITTEN_DATA;
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}
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node=node->next;
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}
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if(!(node=malloc(sizeof(obj_hash_node_t)))) return -1;
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node->key=keyP;
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node->data=dataP;
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if (hashtblP->nodes[hash]) {
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node->next=hashtblP->nodes[hash];
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} else {
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node->next = NULL;
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}
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hashtblP->nodes[hash]=node;
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return HASH_TABLE_OK;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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@@ -140,31 +144,31 @@ hashtable_rc_t obj_hashtable_insert(obj_hash_table_t *hashtblP, void* keyP, int
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*/
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hashtable_rc_t obj_hashtable_remove(obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP)
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{
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obj_hash_node_t *node, *prevnode=NULL;
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hash_size_t hash;
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obj_hash_node_t *node, *prevnode=NULL;
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hash_size_t hash;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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if(prevnode) {
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prevnode->next=node->next;
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} else {
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hashtblP->nodes[hash]=node->next;
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}
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hashtblP->freekeyfunc(node->key);
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hashtblP->freedatafunc(node->data);
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free(node);
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return HASH_TABLE_OK;
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}
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prevnode=node;
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node=node->next;
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}
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return HASH_TABLE_KEY_NOT_EXISTS;
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if ((node->key == keyP) || ((node->key_size == key_sizeP) && (memcmp(node->key, keyP, key_sizeP) == 0))){
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if(prevnode) {
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prevnode->next=node->next;
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} else {
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hashtblP->nodes[hash]=node->next;
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}
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hashtblP->freekeyfunc(node->key);
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hashtblP->freedatafunc(node->data);
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free(node);
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return HASH_TABLE_OK;
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}
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prevnode=node;
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node=node->next;
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}
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return HASH_TABLE_KEY_NOT_EXISTS;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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@@ -173,24 +177,52 @@ hashtable_rc_t obj_hashtable_remove(obj_hash_table_t *hashtblP, const void* keyP
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*/
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hashtable_rc_t obj_hashtable_get(obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP, void** dataP)
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{
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obj_hash_node_t *node;
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hash_size_t hash;
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obj_hash_node_t *node;
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hash_size_t hash;
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if (hashtblP == NULL) {
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*dataP = NULL;
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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*dataP = node->data;
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return HASH_TABLE_OK;
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}
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node=node->next;
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}
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*dataP = NULL;
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return HASH_TABLE_KEY_NOT_EXISTS;
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if (hashtblP == NULL) {
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*dataP = NULL;
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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hash=hashtblP->hashfunc(keyP, key_sizeP)%hashtblP->size;
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node=hashtblP->nodes[hash];
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while(node) {
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if(node->key == keyP) {
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*dataP = node->data;
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return HASH_TABLE_OK;
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} else if (node->key_size == key_sizeP) {
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if (memcmp(node->key, keyP, key_sizeP) == 0) {
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*dataP = node->data;
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return HASH_TABLE_OK;
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}
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}
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node=node->next;
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}
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*dataP = NULL;
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return HASH_TABLE_KEY_NOT_EXISTS;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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* Function to return all keys of an object hash table
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*/
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hashtable_rc_t obj_hashtable_get_keys(obj_hash_table_t *hashtblP, void ** keysP, unsigned int *sizeP)
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{
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size_t n = 0;
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obj_hash_node_t *node = NULL;
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obj_hash_node_t *next = NULL;
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*sizeP = 0;
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keysP = calloc(hashtblP->num_elements, sizeof(void *));
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if (keysP) {
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for(n=0; n<hashtblP->size; ++n) {
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for(node=hashtblP->nodes[n]; node; node=next) {
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keysP[*sizeP++] = node->key;
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next = node->next;
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}
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}
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return HASH_TABLE_OK;
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}
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return HASH_TABLE_SYSTEM_ERROR;
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}
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//-------------------------------------------------------------------------------------------------------------------------------
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/*
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@@ -205,33 +237,32 @@ hashtable_rc_t obj_hashtable_get(obj_hash_table_t *hashtblP, const void* keyP, i
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*/
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hashtable_rc_t obj_hashtable_resize(obj_hash_table_t *hashtblP, hash_size_t sizeP)
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{
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obj_hash_table_t newtbl;
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hash_size_t n;
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obj_hash_node_t *node,*next;
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obj_hash_table_t newtbl;
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hash_size_t n;
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obj_hash_node_t *node,*next;
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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if (hashtblP == NULL) {
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return HASH_TABLE_BAD_PARAMETER_HASHTABLE;
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}
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newtbl.size = sizeP;
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newtbl.hashfunc = hashtblP->hashfunc;
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newtbl.size = sizeP;
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newtbl.hashfunc = hashtblP->hashfunc;
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if(!(newtbl.nodes=calloc(sizeP, sizeof(obj_hash_node_t*)))) return -1;
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if(!(newtbl.nodes=calloc(sizeP, sizeof(obj_hash_node_t*)))) return HASH_TABLE_SYSTEM_ERROR;
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for(n=0; n<hashtblP->size; ++n) {
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for(node=hashtblP->nodes[n]; node; node=next) {
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next = node->next;
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obj_hashtable_insert(&newtbl, node->key, node->key_size, node->data);
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//WARNING Lionel GAUTHIER: BAD CODE TO BE REWRITTEN
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obj_hashtable_remove(hashtblP, node->key, node->key_size);
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}
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}
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for(n=0; n<hashtblP->size; ++n) {
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for(node=hashtblP->nodes[n]; node; node=next) {
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next = node->next;
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obj_hashtable_insert(&newtbl, node->key, node->key_size, node->data);
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obj_hashtable_remove(hashtblP, node->key, node->key_size);
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}
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}
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free(hashtblP->nodes);
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hashtblP->size=newtbl.size;
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hashtblP->nodes=newtbl.nodes;
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free(hashtblP->nodes);
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hashtblP->size=newtbl.size;
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hashtblP->nodes=newtbl.nodes;
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return HASH_TABLE_OK;
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return HASH_TABLE_OK;
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}
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@@ -10,28 +10,29 @@ typedef size_t hash_size_t;
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typedef struct obj_hash_node_s {
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int key_size;
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void *key;
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void *data;
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struct obj_hash_node_s *next;
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int key_size;
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void *key;
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void *data;
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struct obj_hash_node_s *next;
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} obj_hash_node_t;
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typedef struct obj_hash_table_s {
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hash_size_t size;
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hash_size_t num_elements;
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struct obj_hash_node_s **nodes;
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hash_size_t (*hashfunc)(const void*, int);
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void (*freekeyfunc)(void*);
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void (*freedatafunc)(void*);
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hash_size_t size;
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hash_size_t num_elements;
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struct obj_hash_node_s **nodes;
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hash_size_t (*hashfunc)(const void*, int);
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void (*freekeyfunc)(void*);
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void (*freedatafunc)(void*);
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} obj_hash_table_t;
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obj_hash_table_t *obj_hashtable_create (hash_size_t size, hash_size_t (*hashfunc)(const void*, int ), void (*freekeyfunc)(void*), void (*freedatafunc)(void*));
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hashtable_rc_t obj_hashtable_destroy(obj_hash_table_t *hashtblP);
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obj_hash_table_t *obj_hashtable_create (hash_size_t size, hash_size_t (*hashfunc)(const void*, int ), void (*freekeyfunc)(void*), void (*freedatafunc)(void*));
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hashtable_rc_t obj_hashtable_destroy (obj_hash_table_t *hashtblP);
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hashtable_rc_t obj_hashtable_is_key_exists (obj_hash_table_t *hashtblP, void* keyP, int key_sizeP);
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hashtable_rc_t obj_hashtable_insert (obj_hash_table_t *hashtblP, void* keyP, int key_sizeP, void *dataP);
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hashtable_rc_t obj_hashtable_remove (obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP);
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hashtable_rc_t obj_hashtable_get (obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP, void ** dataP);
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hashtable_rc_t obj_hashtable_resize (obj_hash_table_t *hashtblP, hash_size_t sizeP);
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hashtable_rc_t obj_hashtable_insert (obj_hash_table_t *hashtblP, void* keyP, int key_sizeP, void *dataP);
|
||||
hashtable_rc_t obj_hashtable_remove (obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP);
|
||||
hashtable_rc_t obj_hashtable_get (obj_hash_table_t *hashtblP, const void* keyP, int key_sizeP, void ** dataP);
|
||||
hashtable_rc_t obj_hashtable_get_keys(obj_hash_table_t *hashtblP, void ** keysP, unsigned int *sizeP);
|
||||
hashtable_rc_t obj_hashtable_resize (obj_hash_table_t *hashtblP, hash_size_t sizeP);
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user