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fc_botelho
2008-03-26 20:26:48 +00:00
parent 2665414b4e
commit c8a1c4fef9
25 changed files with 1875 additions and 88 deletions
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49
src/brz.c
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@@ -701,3 +701,52 @@ void brz_destroy(cmph_t *mphf)
free(data);
free(mphf);
}
/** cmph_uint32 brz_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).
* \param mphf pointer to the resulting function
* \param key is the key to be hashed
* \param keylen is the key legth in bytes
* \return The mphf value
*
* Computes the mphf value and a fingerprint of 12 bytes. The figerprint pointer should be
* a prealocated area to fit three 4-byte integers. You don't need to use all the 12 bytes
* as fingerprint. According to the application, just few bits can be enough, once mphf does
* not allow collisions for the keys previously known.
*/
cmph_uint32 brz_search_fingerprint(cmph_t *mphf, const char *key, cmph_uint32 keylen, cmph_uint32 * fingerprint)
{
return 0;
}
/** \fn void brz_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()
*/
void brz_pack(cmph_t *mphf, void *packed_mphf)
{
}
/** \fn cmph_uint32 brz_packed_size(cmph_t *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 brz_packed_size(cmph_t *mphf)
{
return 0;
}
/** cmph_uint32 brz_search(void *packed_mphf, const char *key, cmph_uint32 keylen);
* \brief Use the packed mphf to do a search.
* \param packed_mphf pointer to the packed mphf
* \param key key to be hashed
* \param keylen key legth in bytes
* \return The mphf value
*/
cmph_uint32 brz_search_packed(void *packed_mphf, const char *key, cmph_uint32 keylen)
{
return 0;
}