1 #ifndef __CMPH_BMZ_H__ 2 #define __CMPH_BMZ_H__ 3 4 #include "cmph.h" 5 6 typedef struct __bmz_data_t bmz_data_t; 7 typedef struct __bmz_config_data_t bmz_config_data_t; 8 9 bmz_config_data_t *bmz_config_new(void); 10 void bmz_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs); 11 void bmz_config_destroy(cmph_config_t *mph); 12 cmph_t *bmz_new(cmph_config_t *mph, double c); 13 14 void bmz_load(FILE *f, cmph_t *mphf); 15 int bmz_dump(cmph_t *mphf, FILE *f); 16 void bmz_destroy(cmph_t *mphf); 17 cmph_uint32 bmz_search(cmph_t *mphf, const char *key, cmph_uint32 keylen); 18 19 /** \fn void bmz_pack(cmph_t *mphf, void *packed_mphf); 20 * \brief Support the ability to pack a perfect hash function into a preallocated contiguous memory space pointed by packed_mphf. 21 * \param mphf pointer to the resulting mphf 22 * \param packed_mphf pointer to the contiguous memory area used to store the resulting mphf. The size of packed_mphf must be at least cmph_packed_size() 23 */ 24 void bmz_pack(cmph_t *mphf, void *packed_mphf); 25 26 /** \fn cmph_uint32 bmz_packed_size(cmph_t *mphf); 27 * \brief Return the amount of space needed to pack mphf. 28 * \param mphf pointer to a mphf 29 * \return the size of the packed function or zero for failures 30 */ 31 cmph_uint32 bmz_packed_size(cmph_t *mphf); 32 33 /** cmph_uint32 bmz_search(void *packed_mphf, const char *key, cmph_uint32 keylen); 34 * \brief Use the packed mphf to do a search. 35 * \param packed_mphf pointer to the packed mphf 36 * \param key key to be hashed 37 * \param keylen key legth in bytes 38 * \return The mphf value 39 */ 40 cmph_uint32 bmz_search_packed(void *packed_mphf, const char *key, cmph_uint32 keylen); 41 42 #endif 43