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it was fixed more mistakes in BRZ algorithm

This commit is contained in:
fc_botelho 2005-07-29 03:09:31 +00:00
parent 5212c7d5f3
commit be73e6b2a4
11 changed files with 82 additions and 26 deletions
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47
src/brz.c
View File

@ -19,7 +19,7 @@
static int brz_before_gen_graphs(cmph_config_t *mph, cmph_uint32 * disksize, cmph_uint32 * diskoffset);
static void brz_gen_graphs(cmph_config_t *mph, cmph_uint32 * disksize, cmph_uint32 * diskoffset, FILE * graphs_fd);
static char ** brz_read_keys_vd(FILE * graphs_fd, cmph_uint8 nkeys, cmph_uint32 h3);
static char ** brz_read_keys_vd(FILE * graphs_fd, cmph_uint8 nkeys);
static void brz_destroy_keys_vd(char ** keys_vd, cmph_uint8 nkeys);
static void brz_copy_partial_mphf(brz_config_data_t *brz, bmz_data_t * bmzf, cmph_uint32 index);
@ -128,7 +128,8 @@ cmph_t *brz_new(cmph_config_t *mph, float c)
return NULL;
}
graphs_fd = fopen("/colecao/fbotelho/cmph.tmp", "wb");
// graphs_fd = fopen("/colecao/fbotelho/cmph.tmp", "wb");
graphs_fd = fopen("cmph.tmp", "wb");
if (graphs_fd == NULL)
{
free(brz->size);
@ -144,7 +145,8 @@ cmph_t *brz_new(cmph_config_t *mph, float c)
free(diskoffset);
DEBUGP("Graphs generated\n");
fclose(graphs_fd);
graphs_fd = fopen("/colecao/fbotelho/cmph.tmp", "rb");
// graphs_fd = fopen("/colecao/fbotelho/cmph.tmp", "rb");
graphs_fd = fopen("cmph.tmp", "rb");
// codigo do algoritmo...
brz->h1 = (hash_state_t **)malloc(sizeof(hash_state_t *)*brz->k);
brz->h2 = (hash_state_t **)malloc(sizeof(hash_state_t *)*brz->k);
@ -155,7 +157,7 @@ cmph_t *brz_new(cmph_config_t *mph, float c)
cmph_uint32 j;
bmz_data_t * bmzf = NULL;
if (brz->size[i] == 0) continue;
keys_vd = brz_read_keys_vd(graphs_fd, brz->size[i], i);
keys_vd = brz_read_keys_vd(graphs_fd, brz->size[i]);
// Source of keys
source = cmph_io_vector_adapter(keys_vd, (cmph_uint32)brz->size[i]);
config = cmph_config_new(source);
@ -214,11 +216,11 @@ static int brz_before_gen_graphs(cmph_config_t *mph, cmph_uint32 * disksize, cmp
char *key;
mph->key_source->read(mph->key_source->data, &key, &keylen);
h3 = hash(brz->h3, key, keylen) % brz->k;
if(h3 == 6)
{
DEBUGP("key = %s\n", key);
DEBUGP("keylen = %u\n", keylen + 1);
}
// if(h3 == 6)
// {
// DEBUGP("key = %s\n", key);
// DEBUGP("keylen = %u\n", keylen + 1);
// }
mph->key_source->dispose(mph->key_source->data, key, keylen);
if (brz->size[h3] == 255) return 0;
@ -230,13 +232,13 @@ static int brz_before_gen_graphs(cmph_config_t *mph, cmph_uint32 * disksize, cmp
// }
}
fprintf(stderr, "size:%u offset: %u\n", brz->size[0], brz->offset[0]);
// DEBUGP("size:%u offset: %u\n", brz->size[0], brz->offset[0]);
for (e = 1; e < brz->k; ++e)
{
brz->offset[e] = brz->size[e-1] + brz->offset[e-1];
diskoffset[e] = disksize[e-1] + diskoffset[e-1];
DEBUGP("disksize[%u]=%u diskoffset[%u]: %u\n", e, disksize[e], e, diskoffset[e]);
DEBUGP("size[%u]=%u offset[%u]: %u\n", e, brz->size[e], e, brz->offset[e]);
/* DEBUGP("disksize[%u]=%u diskoffset[%u]: %u\n", e, disksize[e], e, diskoffset[e]);
DEBUGP("size[%u]=%u offset[%u]: %u\n", e, brz->size[e], e, brz->offset[e]);*/
}
return 1;
}
@ -255,23 +257,23 @@ static void brz_gen_graphs(cmph_config_t *mph, cmph_uint32 * disksize, cmph_uint
char *key;
mph->key_source->read(mph->key_source->data, &key, &keylen);
h3 = hash(brz->h3, key, keylen) % brz->k;
if(h3 == 6)
/* if(h3 == 6)
{
DEBUGP("key = %s\n", key);
DEBUGP("keylen = %u\n", keylen + 1);
}
}*/
fseek(graphs_fd, diskoffset[h3], SEEK_SET);
fwrite(key, sizeof(char), keylen + 1, graphs_fd);
if(h3 == 6)
/* if(h3 == 6)
{
DEBUGP("diskoffset[%u]=%u \n", h3, diskoffset[h3]);
}
}*/
diskoffset[h3] = diskoffset[h3] + keylen + 1;
mph->key_source->dispose(mph->key_source->data, key, keylen);
}
}
static char ** brz_read_keys_vd(FILE * graphs_fd, cmph_uint8 nkeys, cmph_uint32 h3)
static char ** brz_read_keys_vd(FILE * graphs_fd, cmph_uint8 nkeys)
{
char ** keys_vd = (char **)malloc(sizeof(char *)*nkeys);
cmph_uint8 i;
@ -291,7 +293,6 @@ static char ** brz_read_keys_vd(FILE * graphs_fd, cmph_uint8 nkeys, cmph_uint32
}
keys_vd[i] = (char *)malloc(strlen(buf) + 1);
strcpy(keys_vd[i], buf);
if(h3 == 6) DEBUGP("key = %s\n", keys_vd[i]);
free(buf);
}
return keys_vd;
@ -311,8 +312,8 @@ static void brz_copy_partial_mphf(brz_config_data_t *brz, bmz_data_t * bmzf, cmp
{
brz->g[index][i] = (cmph_uint8) bmzf->g[i];
}
brz->h1[index] = bmzf->hashes[0];
brz->h2[index] = bmzf->hashes[1];
brz->h1[index] = hash_state_copy(bmzf->hashes[0]);
brz->h2[index] = hash_state_copy(bmzf->hashes[1]);
}
int brz_dump(cmph_t *mphf, FILE *fd)
@ -411,19 +412,13 @@ void brz_destroy(cmph_t *mphf)
{
cmph_uint32 i;
brz_data_t *data = (brz_data_t *)mphf->data;
fprintf(stderr, "MERDAAAAAA %u\n", data->h3->hashfunc);
for(i = 0; i < data->k; i++)
{
free(data->g[i]);
fprintf(stderr, "MERDAAAAAA1 %u\n", data->h3->hashfunc);
hash_state_destroy(data->h1[i]);
fprintf(stderr, "MERDAAAAAA2 %u\n", data->h3->hashfunc);
hash_state_destroy(data->h2[i]);
fprintf(stderr, "MERDAAAAAA3 %u\n", data->h3->hashfunc);
}
fprintf(stderr, "MERDAAAAAA %u\n", data->h3->hashfunc);
hash_state_destroy(data->h3);
fprintf(stderr, "MERDAAAAAA1FAB\n");
free(data->g);
free(data->h1);
free(data->h2);

7
src/djb2_hash.c
View File

@ -34,6 +34,13 @@ void djb2_state_dump(djb2_state_t *state, char **buf, cmph_uint32 *buflen)
return;
}
djb2_state_t *djb2_state_copy(djb2_state_t *src_state)
{
djb2_state_t *dest_state = (djb2_state_t *)malloc(sizeof(djb2_state_t));
dest_state->hashfunc = src_state->hashfunc;
return dest_state;
}
djb2_state_t *djb2_state_load(const char *buf, cmph_uint32 buflen)
{
djb2_state_t *state = (djb2_state_t *)malloc(sizeof(djb2_state_t));

1
src/djb2_hash.h
View File

@ -11,6 +11,7 @@ typedef struct __djb2_state_t
djb2_state_t *djb2_state_new();
cmph_uint32 djb2_hash(djb2_state_t *state, const char *k, cmph_uint32 keylen);
void djb2_state_dump(djb2_state_t *state, char **buf, cmph_uint32 *buflen);
djb2_state_t *djb2_state_copy(djb2_state_t *src_state);
djb2_state_t *djb2_state_load(const char *buf, cmph_uint32 buflen);
void djb2_state_destroy(djb2_state_t *state);

7
src/fnv_hash.c
View File

@ -38,6 +38,13 @@ void fnv_state_dump(fnv_state_t *state, char **buf, cmph_uint32 *buflen)
return;
}
fnv_state_t * fnv_state_copy(fnv_state_t *src_state)
{
fnv_state_t *dest_state = (fnv_state_t *)malloc(sizeof(fnv_state_t));
dest_state->hashfunc = src_state->hashfunc;
return dest_state;
}
fnv_state_t *fnv_state_load(const char *buf, cmph_uint32 buflen)
{
fnv_state_t *state = (fnv_state_t *)malloc(sizeof(fnv_state_t));

1
src/fnv_hash.h
View File

@ -11,6 +11,7 @@ typedef struct __fnv_state_t
fnv_state_t *fnv_state_new();
cmph_uint32 fnv_hash(fnv_state_t *state, const char *k, cmph_uint32 keylen);
void fnv_state_dump(fnv_state_t *state, char **buf, cmph_uint32 *buflen);
fnv_state_t *fnv_state_copy(fnv_state_t *src_state);
fnv_state_t *fnv_state_load(const char *buf, cmph_uint32 buflen);
void fnv_state_destroy(fnv_state_t *state);

24
src/hash.c
View File

@ -86,6 +86,30 @@ void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen)
return;
}
hash_state_t * hash_state_copy(hash_state_t *src_state)
{
hash_state_t *dest_state = NULL;
switch (src_state->hashfunc)
{
case CMPH_HASH_JENKINS:
dest_state = (hash_state_t *)jenkins_state_copy((jenkins_state_t *)src_state);
break;
case CMPH_HASH_DJB2:
dest_state = (hash_state_t *)djb2_state_copy((djb2_state_t *)src_state);
break;
case CMPH_HASH_SDBM:
dest_state = (hash_state_t *)sdbm_state_copy((sdbm_state_t *)src_state);
break;
case CMPH_HASH_FNV:
dest_state = (hash_state_t *)fnv_state_copy((fnv_state_t *)src_state);
break;
default:
assert(0);
}
dest_state->hashfunc = src_state->hashfunc;
return dest_state;
}
hash_state_t *hash_state_load(const char *buf, cmph_uint32 buflen)
{
cmph_uint32 i;

1
src/hash.h
View File

@ -8,6 +8,7 @@ typedef union __hash_state_t hash_state_t;
hash_state_t *hash_state_new(CMPH_HASH, cmph_uint32 hashsize);
cmph_uint32 hash(hash_state_t *state, const char *key, cmph_uint32 keylen);
void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen);
hash_state_t * hash_state_copy(hash_state_t *src_state);
hash_state_t *hash_state_load(const char *buf, cmph_uint32 buflen);
void hash_state_destroy(hash_state_t *state);

11
src/jenkins_hash.c
View File

@ -178,6 +178,17 @@ void jenkins_state_dump(jenkins_state_t *state, char **buf, cmph_uint32 *buflen)
return;
}
jenkins_state_t *jenkins_state_copy(jenkins_state_t *src_state)
{
jenkins_state_t *dest_state = (jenkins_state_t *)malloc(sizeof(jenkins_state_t));
dest_state->hashfunc = src_state->hashfunc;
dest_state->seed = src_state->seed;
dest_state->nbits = src_state->nbits;
dest_state->size = src_state->size;
return dest_state;
}
jenkins_state_t *jenkins_state_load(const char *buf, cmph_uint32 buflen)
{
jenkins_state_t *state = (jenkins_state_t *)malloc(sizeof(jenkins_state_t));

1
src/jenkins_hash.h
View File

@ -14,6 +14,7 @@ typedef struct __jenkins_state_t
jenkins_state_t *jenkins_state_new(cmph_uint32 size); //size of hash table
cmph_uint32 jenkins_hash(jenkins_state_t *state, const char *k, cmph_uint32 keylen);
void jenkins_state_dump(jenkins_state_t *state, char **buf, cmph_uint32 *buflen);
jenkins_state_t *jenkins_state_copy(jenkins_state_t *src_state);
jenkins_state_t *jenkins_state_load(const char *buf, cmph_uint32 buflen);
void jenkins_state_destroy(jenkins_state_t *state);

7
src/sdbm_hash.c
View File

@ -34,6 +34,13 @@ void sdbm_state_dump(sdbm_state_t *state, char **buf, cmph_uint32 *buflen)
return;
}
sdbm_state_t *sdbm_state_copy(sdbm_state_t *src_state)
{
sdbm_state_t *dest_state = (sdbm_state_t *)malloc(sizeof(sdbm_state_t));
dest_state->hashfunc = src_state->hashfunc;
return dest_state;
}
sdbm_state_t *sdbm_state_load(const char *buf, cmph_uint32 buflen)
{
sdbm_state_t *state = (sdbm_state_t *)malloc(sizeof(sdbm_state_t));

1
src/sdbm_hash.h
View File

@ -11,6 +11,7 @@ typedef struct __sdbm_state_t
sdbm_state_t *sdbm_state_new();
cmph_uint32 sdbm_hash(sdbm_state_t *state, const char *k, cmph_uint32 keylen);
void sdbm_state_dump(sdbm_state_t *state, char **buf, cmph_uint32 *buflen);
sdbm_state_t *sdbm_state_copy(sdbm_state_t *src_state);
sdbm_state_t *sdbm_state_load(const char *buf, cmph_uint32 buflen);
void sdbm_state_destroy(sdbm_state_t *state);