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hash_bucket.h
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hash_bucket.h
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#ifndef __HASH_BUCKET_H__
#define __HASH_BUCKET_H__ 1
#include <stdint.h>
#include <sys/types.h>
#define LOAD_FACTOR(bo) \
(float)((float)(bo)->nr_buckets_used / (float)(bo)->nr_buckets)
#define BUCKET_CALLBACKS_SIZE 32
typedef struct Bucket_Object bucket_obj_t;
typedef struct Bucket bucket_t;
typedef void(*BUCKET_cb_t)(bucket_t *);
struct Bucket
{
char *key;
uint32_t hash; // the hash of the key
void *data;
size_t data_len;
int used;
struct Bucket *next; // linked list of collisions
};
struct Bucket_Object
{
bucket_t *buckets;
unsigned int nr_buckets;
unsigned int nr_buckets_used;
float load_factor;
BUCKET_cb_t callbacks[BUCKET_CALLBACKS_SIZE];
unsigned int nr_callbacks;
void (*put)(bucket_obj_t *, char *, void *, size_t, int);
void *(*get)(bucket_obj_t *, char *);
bucket_t *(*get_bucket)(bucket_obj_t *, char *);
bucket_t *(*get_bucket_from_list)(bucket_obj_t *, char *);
bucket_t *(*get_bucket_from_list_for_value(bucket_t *, void *, size_t);
char *(*get_key)(bucket_obj_t *, void *, size_t);
int (*reset)(bucket_obj_t *, int);
void (*add_callback)(bucket_obj_t *, BUCKET_cb_t);
void (*destroy)(bucket_obj_t *);
};
#define BUCKET_FL_NO_FREE 0x01
#define BUCKET_FL_NO_COPY 0x02
bucket_obj_t *BUCKET_object_new(void);
//void BUCKET_object_destroy(bucket_obj_t *bObj, int flags);
//int BUCKET_put_data(bucket_obj_t *bObj, char *key, void *data, size_t len, int flags);
//int BUCKET_put_data_no_copy(bucket_obj_t *bObj, char *key, void *data);
//int BUCKET_reset_buckets(bucket_obj_t *bObj, int flags);
//void BUCKET_clear_bucket(bucket_obj_t *bObj, char *key, int flags);
//bucket_t *BUCKET_get_bucket(bucket_obj_t *bObj, char *key);
//bucket_t *BUCKET_get_bucket_from_list(bucket_t *bucket, char *key);
//bucket_t *BUCKET_get_list_bucket_for_value(bucket_t *bucket, void *data, size_t data_len);
//char *BUCKET_get_key_for_value(bucket_t *bucket, void *data, size_t data_len);
void BUCKET_dump_all(bucket_obj_t *);
//void BUCKET_register_callback(bucket_obj_t *bObj, BUCKET_cb_t cb);
#endif /* !defined __HASH_BUCKET_H__ */