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fc_botelho
2008-04-12 06:17:21 +00:00
parent a1dbe680cf
commit 81a8cad41f
39 changed files with 359 additions and 336 deletions
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29
src/cmph.h
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@@ -16,11 +16,11 @@ typedef struct __cmph_t cmph_t;
typedef struct
{
void *data;
cmph_uint32 nkeys;
int (*read)(void *, char **, cmph_uint32 *);
void (*dispose)(void *, char *, cmph_uint32);
void (*rewind)(void *);
void *data;
cmph_uint32 nkeys;
int (*read)(void *, char **, cmph_uint32 *);
void (*dispose)(void *, char *, cmph_uint32);
void (*rewind)(void *);
} cmph_io_adapter_t;
/** Adapter pattern API **/
@@ -37,18 +37,23 @@ void cmph_io_vector_adapter_destroy(cmph_io_adapter_t * key_source);
cmph_io_adapter_t *cmph_io_byte_vector_adapter(cmph_uint8 ** vector, cmph_uint32 nkeys);
void cmph_io_byte_vector_adapter_destroy(cmph_io_adapter_t * key_source);
cmph_io_adapter_t *cmph_io_struct_vector_adapter(void * vector, cmph_uint32 struct_size, cmph_uint32 key_offset, cmph_uint32 key_len, cmph_uint32 nkeys);
cmph_io_adapter_t *cmph_io_struct_vector_adapter(void * vector,
cmph_uint32 struct_size,
cmph_uint32 key_offset,
cmph_uint32 key_len,
cmph_uint32 nkeys);
void cmph_io_struct_vector_adapter_destroy(cmph_io_adapter_t * key_source);
/** Hash configuration API **/
cmph_config_t *cmph_config_new(cmph_io_adapter_t *key_source);
void cmph_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs);
void cmph_config_set_verbosity(cmph_config_t *mph, cmph_uint32 verbosity);
void cmph_config_set_graphsize(cmph_config_t *mph, float c);
void cmph_config_set_graphsize(cmph_config_t *mph, double c);
void cmph_config_set_algo(cmph_config_t *mph, CMPH_ALGO algo);
void cmph_config_set_tmp_dir(cmph_config_t *mph, cmph_uint8 *tmp_dir);
void cmph_config_set_mphf_fd(cmph_config_t *mph, FILE *mphf_fd);
void cmph_config_set_b(cmph_config_t *mph, cmph_uint8 b);
void cmph_config_set_b(cmph_config_t *mph, cmph_uint32 b);
void cmph_config_set_memory_availability(cmph_config_t *mph, cmph_uint32 memory_availability);
void cmph_config_destroy(cmph_config_t *mph);
@@ -65,7 +70,8 @@ cmph_t *cmph_new(cmph_config_t *mph);
cmph_uint32 cmph_search(cmph_t *mphf, const char *key, cmph_uint32 keylen);
/** cmph_uint32 cmph_search_fingerprint(cmph_t *mphf, const char *key, cmph_uint32 keylen, cmph_uint32 * fingerprint);
* \brief Computes the mphf value and a fingerprint of 12 bytes (i.e., figerprint should be a prealocated area to fit three 4-byte integers).
* \brief Computes the mphf value and a fingerprint of 12 bytes (i.e.,
* \brief figerprint should be a prealocated area to fit three 4-byte integers).
* \param mphf pointer to the resulting function
* \param key is the key to be hashed
* \param keylen is the key legth in bytes
@@ -89,7 +95,8 @@ cmph_t *cmph_load(FILE *f);
/** \fn void cmph_pack(cmph_t *mphf, void *packed_mphf);
* \brief Support the ability to pack a perfect hash function into a preallocated contiguous memory space pointed by packed_mphf.
* \param mphf pointer to the resulting mphf
* \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()
* \param packed_mphf pointer to the contiguous memory area used to store the
* \param resulting mphf. The size of packed_mphf must be at least cmph_packed_size()
*/
void cmph_pack(cmph_t *mphf, void *packed_mphf);
@@ -97,7 +104,7 @@ void cmph_pack(cmph_t *mphf, void *packed_mphf);
* \brief Return the amount of space needed to pack mphf.
* \param mphf pointer to a mphf
* \return the size of the packed function or zero for failures
*/
*/
cmph_uint32 cmph_packed_size(cmph_t *mphf);
/** cmph_uint32 cmph_search(void *packed_mphf, const char *key, cmph_uint32 keylen);