int main(int argc, char** argv) {
leveldb_t* db;
leveldb_comparator_t* cmp;
leveldb_cache_t* cache;
leveldb_env_t* env;
leveldb_options_t* options;
leveldb_readoptions_t* roptions;
leveldb_writeoptions_t* woptions;
char* err = NULL;
int run = -1;
CheckCondition(leveldb_major_version() >= 1);
CheckCondition(leveldb_minor_version() >= 1);
snprintf(dbname, sizeof(dbname),
"%s/leveldb_c_test-%di/meta/0",
GetTempDir(),
((int) geteuid()));
StartPhase("create_objects");
cmp = leveldb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
env = leveldb_create_default_env();
cache = leveldb_cache_create_lru(100000);
options = leveldb_options_create();
leveldb_options_set_comparator(options, cmp);
leveldb_options_set_error_if_exists(options, 1);
leveldb_options_set_cache(options, cache);
leveldb_options_set_env(options, env);
leveldb_options_set_info_log(options, NULL);
leveldb_options_set_write_buffer_size(options, 100000);
leveldb_options_set_paranoid_checks(options, 1);
leveldb_options_set_max_open_files(options, 10);
leveldb_options_set_block_size(options, 1024);
leveldb_options_set_block_restart_interval(options, 8);
leveldb_options_set_compression(options, leveldb_no_compression);
roptions = leveldb_readoptions_create();
leveldb_readoptions_set_verify_checksums(roptions, 1);
leveldb_readoptions_set_fill_cache(roptions, 0);
woptions = leveldb_writeoptions_create();
leveldb_writeoptions_set_sync(woptions, 1);
StartPhase("destroy");
leveldb_destroy_db(options, dbname, &err);
Free(&err);
StartPhase("open");
db = leveldb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
StartPhase("put");
leveldb_put(db, woptions, "foo", 3, "hello", 5, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "hello");
StartPhase("compactall");
leveldb_compact_range(db, NULL, 0, NULL, 0);
CheckGet(db, roptions, "foo", "hello");
StartPhase("compactrange");
leveldb_compact_range(db, "a", 1, "z", 1);
CheckGet(db, roptions, "foo", "hello");
StartPhase("writebatch");
{
leveldb_writebatch_t* wb = leveldb_writebatch_create();
leveldb_writebatch_put(wb, "foo", 3, "a", 1);
leveldb_writebatch_clear(wb);
leveldb_writebatch_put(wb, "bar", 3, "b", 1);
leveldb_writebatch_put(wb, "box", 3, "c", 1);
leveldb_writebatch_delete(wb, "bar", 3);
leveldb_write(db, woptions, wb, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "hello");
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "box", "c");
int pos = 0;
leveldb_writebatch_iterate(wb, &pos, CheckPut, CheckDel);
CheckCondition(pos == 3);
leveldb_writebatch_destroy(wb);
}
StartPhase("iter");
{
leveldb_iterator_t* iter = leveldb_create_iterator(db, roptions);
CheckCondition(!leveldb_iter_valid(iter));
leveldb_iter_seek_to_first(iter);
CheckCondition(leveldb_iter_valid(iter));
CheckIter(iter, "box", "c");
leveldb_iter_next(iter);
CheckIter(iter, "foo", "hello");
leveldb_iter_prev(iter);
CheckIter(iter, "box", "c");
leveldb_iter_prev(iter);
CheckCondition(!leveldb_iter_valid(iter));
leveldb_iter_seek_to_last(iter);
CheckIter(iter, "foo", "hello");
leveldb_iter_seek(iter, "b", 1);
CheckIter(iter, "box", "c");
leveldb_iter_get_error(iter, &err);
CheckNoError(err);
leveldb_iter_destroy(iter);
}
StartPhase("approximate_sizes");
{
int i;
int n = 20000;
char keybuf[100];
char valbuf[100];
uint64_t sizes[2];
const char* start[2] = { "a", "k00000000000000010000" };
size_t start_len[2] = { 1, 21 };
const char* limit[2] = { "k00000000000000010000", "z" };
size_t limit_len[2] = { 21, 1 };
leveldb_writeoptions_set_sync(woptions, 0);
for (i = 0; i < n; i++) {
snprintf(keybuf, sizeof(keybuf), "k%020d", i);
snprintf(valbuf, sizeof(valbuf), "v%020d", i);
leveldb_put(db, woptions, keybuf, strlen(keybuf), valbuf, strlen(valbuf),
&err);
CheckNoError(err);
}
leveldb_approximate_sizes(db, 2, start, start_len, limit, limit_len, sizes);
CheckCondition(sizes[0] > 0);
CheckCondition(sizes[1] > 0);
}
StartPhase("property");
{
char* prop = leveldb_property_value(db, "nosuchprop");
/* CheckCondition(prop == NULL);*/
prop = leveldb_property_value(db, "leveldb.stats");
CheckCondition(prop != NULL);
Free(&prop);
}
StartPhase("snapshot");
{
const leveldb_snapshot_t* snap;
snap = leveldb_create_snapshot(db);
leveldb_delete(db, woptions, "foo", 3, &err);
CheckNoError(err);
leveldb_readoptions_set_snapshot(roptions, snap);
CheckGet(db, roptions, "foo", "hello");
leveldb_readoptions_set_snapshot(roptions, NULL);
CheckGet(db, roptions, "foo", NULL);
leveldb_release_snapshot(db, snap);
}
StartPhase("repair");
{
leveldb_close(db);
leveldb_options_set_error_if_exists(options, 0);
leveldb_repair_db(options, dbname, &err);
CheckNoError(err);
db = leveldb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "box", "c");
leveldb_options_set_error_if_exists(options, 1);
}
StartPhase("filter");
for (run = 0; run < 2; run++) {
// First run uses custom filter, second run uses bloom filter
CheckNoError(err);
leveldb_filterpolicy_t* policy;
if (run == 0) {
policy = leveldb_filterpolicy_create(
NULL, FilterDestroy, FilterCreate, FilterKeyMatch, FilterName);
} else {
policy = leveldb_filterpolicy_create_bloom(10);
}
// Create new database
leveldb_close(db);
leveldb_destroy_db(options, dbname, &err);
leveldb_options_set_filter_policy(options, policy);
db = leveldb_open(options, dbname, &err);
CheckNoError(err);
leveldb_put(db, woptions, "foo", 3, "foovalue", 8, &err);
CheckNoError(err);
leveldb_put(db, woptions, "bar", 3, "barvalue", 8, &err);
CheckNoError(err);
leveldb_compact_range(db, NULL, 0, NULL, 0);
fake_filter_result = 1;
CheckGet(db, roptions, "foo", "foovalue");
CheckGet(db, roptions, "bar", "barvalue");
if (phase == 0) {
// Must not find value when custom filter returns false
fake_filter_result = 0;
CheckGet(db, roptions, "foo", NULL);
CheckGet(db, roptions, "bar", NULL);
fake_filter_result = 1;
CheckGet(db, roptions, "foo", "foovalue");
CheckGet(db, roptions, "bar", "barvalue");
}
leveldb_options_set_filter_policy(options, NULL);
leveldb_filterpolicy_destroy(policy);
}
StartPhase("cleanup");
leveldb_close(db);
leveldb_options_destroy(options);
leveldb_readoptions_destroy(roptions);
leveldb_writeoptions_destroy(woptions);
leveldb_cache_destroy(cache);
leveldb_comparator_destroy(cmp);
leveldb_env_destroy(env);
fprintf(stderr, "PASS\n");
return 0;
}
int main(int argc, char** argv) {
leveldb_t* db;
leveldb_comparator_t* cmp;
leveldb_cache_t* cache;
leveldb_env_t* env;
leveldb_options_t* options;
leveldb_readoptions_t* roptions;
leveldb_writeoptions_t* woptions;
char* err = NULL;
#if defined(LEVELDB_PLATFORM_WINDOWS)
snprintf(dbname, sizeof(dbname), "tmp\\leveldb_c_test");
#else
snprintf(dbname, sizeof(dbname), "/tmp/leveldb_c_test-%d",
((int) geteuid()));
#endif
StartPhase("create_objects");
cmp = leveldb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
env = leveldb_create_default_env();
cache = leveldb_cache_create_lru(100000);
options = leveldb_options_create();
leveldb_options_set_comparator(options, cmp);
leveldb_options_set_error_if_exists(options, 1);
leveldb_options_set_cache(options, cache);
leveldb_options_set_env(options, env);
leveldb_options_set_info_log(options, NULL);
leveldb_options_set_write_buffer_size(options, 100000);
leveldb_options_set_paranoid_checks(options, 1);
leveldb_options_set_max_open_files(options, 10);
leveldb_options_set_block_size(options, 1024);
leveldb_options_set_block_restart_interval(options, 8);
leveldb_options_set_compression(options, leveldb_no_compression);
roptions = leveldb_readoptions_create();
leveldb_readoptions_set_verify_checksums(roptions, 1);
leveldb_readoptions_set_fill_cache(roptions, 0);
woptions = leveldb_writeoptions_create();
leveldb_writeoptions_set_sync(woptions, 1);
StartPhase("destroy");
leveldb_destroy_db(options, dbname, &err);
leveldb_free(&err);
StartPhase("open_error");
db = leveldb_open(options, dbname, &err);
CheckCondition(err != NULL);
leveldb_free(&err);
StartPhase("open");
leveldb_options_set_create_if_missing(options, 1);
db = leveldb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
StartPhase("put");
leveldb_put(db, woptions, "foo", 3, "hello", 5, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "hello");
StartPhase("writebatch");
{
int pos = 0;
leveldb_writebatch_t* wb = leveldb_writebatch_create();
leveldb_writebatch_put(wb, "foo", 3, "a", 1);
leveldb_writebatch_clear(wb);
leveldb_writebatch_put(wb, "bar", 3, "b", 1);
leveldb_writebatch_put(wb, "box", 3, "c", 1);
leveldb_writebatch_delete(wb, "bar", 3);
leveldb_write(db, woptions, wb, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "hello");
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "box", "c");
leveldb_writebatch_iterate(wb, &pos, CheckPut, CheckDel);
CheckCondition(pos == 3);
leveldb_writebatch_destroy(wb);
}
StartPhase("iter");
{
leveldb_iterator_t* iter = leveldb_create_iterator(db, roptions);
CheckCondition(!leveldb_iter_valid(iter));
leveldb_iter_seek_to_first(iter);
CheckCondition(leveldb_iter_valid(iter));
CheckIter(iter, "box", "c");
leveldb_iter_next(iter);
CheckIter(iter, "foo", "hello");
leveldb_iter_prev(iter);
CheckIter(iter, "box", "c");
leveldb_iter_prev(iter);
CheckCondition(!leveldb_iter_valid(iter));
leveldb_iter_seek_to_last(iter);
CheckIter(iter, "foo", "hello");
leveldb_iter_seek(iter, "b", 1);
CheckIter(iter, "box", "c");
leveldb_iter_get_error(iter, &err);
CheckNoError(err);
leveldb_iter_destroy(iter);
}
StartPhase("approximate_sizes");
{
int i;
int n = 20000;
char keybuf[100];
char valbuf[100];
uint64_t sizes[2];
const char* start[2] = { "a", "k00000000000000010000" };
size_t start_len[2] = { 1, 21 };
const char* limit[2] = { "k00000000000000010000", "z" };
size_t limit_len[2] = { 21, 1 };
leveldb_writeoptions_set_sync(woptions, 0);
for (i = 0; i < n; i++) {
snprintf(keybuf, sizeof(keybuf), "k%020d", i);
snprintf(valbuf, sizeof(valbuf), "v%020d", i);
leveldb_put(db, woptions, keybuf, strlen(keybuf), valbuf, strlen(valbuf),
&err);
CheckNoError(err);
}
leveldb_approximate_sizes(db, 2, start, start_len, limit, limit_len, sizes);
CheckCondition(sizes[0] > 0);
CheckCondition(sizes[1] > 0);
}
StartPhase("property");
{
char* prop = leveldb_property_value(db, "nosuchprop");
CheckCondition(prop == NULL);
prop = leveldb_property_value(db, "leveldb.stats");
CheckCondition(prop != NULL);
leveldb_free(&prop);
}
StartPhase("snapshot");
{
const leveldb_snapshot_t* snap;
snap = leveldb_create_snapshot(db);
leveldb_delete(db, woptions, "foo", 3, &err);
CheckNoError(err);
leveldb_readoptions_set_snapshot(roptions, snap);
CheckGet(db, roptions, "foo", "hello");
leveldb_readoptions_set_snapshot(roptions, NULL);
CheckGet(db, roptions, "foo", NULL);
leveldb_release_snapshot(db, snap);
}
StartPhase("repair");
{
leveldb_close(db);
leveldb_options_set_create_if_missing(options, 0);
leveldb_options_set_error_if_exists(options, 0);
leveldb_repair_db(options, dbname, &err);
CheckNoError(err);
db = leveldb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "box", "c");
}
StartPhase("cleanup");
leveldb_close(db);
leveldb_options_destroy(options);
leveldb_readoptions_destroy(roptions);
leveldb_writeoptions_destroy(woptions);
leveldb_cache_destroy(cache);
leveldb_comparator_destroy(cmp);
leveldb_env_destroy(env);
fprintf(stderr, "PASS\n");
return 0;
}
char *ldb_values(struct _leveldb_stuff *ldbs, const char *ptn, size_t ptn_len, int *size)
{
char *err = NULL;
char *result = NULL;
char *p_dst = NULL;
char *p_key = NULL;
char *p_value = NULL;
size_t klen = 0;
size_t vlen = 0;
int index = 0;
int i, j, z = 0;
struct kv_list list = { 0 };
struct some_kv *p_new, *p_old, *p_tmp = NULL;
leveldb_iterator_t* iter = leveldb_create_iterator(ldbs->db, ldbs->roptions);
leveldb_iterator_t* iter_save = iter;
if (!!leveldb_iter_valid(iter)) {/* first use it is invalid */
fprintf(stderr, "%s:%d: this iter is valid already!\n", __FILE__, __LINE__);
*size = -1;
return NULL ;
}
leveldb_iter_seek_to_first(iter);
p_old = p_new = &list.head;
while (leveldb_iter_valid(iter)) {
/* parse kv */
p_key = (char *) leveldb_iter_key(iter, &klen);
log_debug("%p iter key = %s, klen = %ld\n", p_key, p_key, klen);
p_value = (char *) leveldb_iter_value(iter, &vlen);
leveldb_iter_get_error(iter, &err);
if (err) {
goto FAIL_ITER_PARSE;
}
if (!string_match_len(ptn, ptn_len, p_value, vlen, 0)) {
leveldb_iter_next(iter);
continue;
}
/* save parse */
list.count++;/* kv counts */
list.klens += klen;
list.knubs += get_number_len(klen);
index = list.count % SOME_KV_NODES_COUNT;
if ((list.count / SOME_KV_NODES_COUNT >= 1) && (index == 1)) {
/* new store */
p_new = malloc(sizeof(struct some_kv));
if (p_new == NULL ) {
/* free store */
index = GET_NEED_COUNT( list.count, SOME_KV_NODES_COUNT );
p_tmp = &list.head;
for (i = 0, z = list.count - 1; (i < index) && (p_tmp != NULL ); i++ ) {
for (j = 0; (j < SOME_KV_NODES_COUNT) && (z > 0); j++, z--) {
free(p_tmp->nodes[j].key);
}
p_old = p_tmp;
p_tmp = p_tmp->next;
if (p_old != &list.head) {
free(p_old);
}
}
goto FAIL_MEMORY;
}
memset(p_new, 0, sizeof(struct some_kv));
p_old->next = p_new;
p_new->prev = p_old;
p_old = p_new;
}
/*
* fix bug: index is error if list.count = n * SOME_KV_NODES_COUNT(1024),
* SOME_KV_NODES_COUNT = 1024, n > 0.
*/
if (index == 0) {
index = SOME_KV_NODES_COUNT;
}
/* save key */
p_new->nodes[index - 1].klen = klen;
p_new->nodes[index - 1].key = malloc(GET_NEED_COUNT( klen, G_PAGE_SIZE ) * G_PAGE_SIZE);
memcpy(p_new->nodes[index - 1].key, p_key, klen);
/* find next */
leveldb_iter_next(iter);
}
/* create result */
if (list.count > 0) {
/* has members */
/* *2\r\n$5\r\nmykey\r\n$5\r\nmyval\r\n */
*size = strlen("*\r\n") + get_number_len(list.count) + strlen("$\r\n\r\n") * (list.count)
+ list.knubs + list.klens;
index = GET_NEED_COUNT( *size, G_PAGE_SIZE ) * G_PAGE_SIZE;
result = (char *) malloc(index);
if (result == NULL ) goto FAIL_MEMORY;
memset(result, 0, index);
log_debug("----->>>ALL SIZE IS %d, BUFF %p : LEN IS %d\n", *size, result, index);
/* split piece */
index = GET_NEED_COUNT( list.count, SOME_KV_NODES_COUNT );
p_tmp = &list.head;
sprintf(result, "*%d\r\n", list.count);
p_dst = result + strlen(result);
for (i = 0, z = list.count; (i < index) && (p_tmp != NULL ); i++ ) {
for (j = 0; (j < SOME_KV_NODES_COUNT) && (z > 0); j++, z--) {
p_dst = set_bulk(p_dst, p_tmp->nodes[j].key, p_tmp->nodes[j].klen);
free(p_tmp->nodes[j].key);
}
p_old = p_tmp;
p_tmp = p_tmp->next;
if (p_old != &list.head) {
free(p_old);
}
}
} else {
/* no members */
*size = 0;
}
leveldb_iter_destroy(iter_save);
return result;
FAIL_ITER_PARSE: fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, (err));
leveldb_free(err);
err = NULL;
leveldb_iter_destroy(iter);
*size = -1;
return NULL ;
FAIL_MEMORY: fprintf(stderr, "%s:%d: FAILED MALLOC !\n", __FILE__, __LINE__);
leveldb_iter_destroy(iter);
*size = -1;
return NULL ;
}
int
main ()
{
unsigned int N_KEYS;
unsigned int N_BATCH;
printf("\n number of keys:");
scanf("%u",&N_KEYS);
printf("\n batch size:");
scanf("%u",&N_BATCH);
tinymt32_t tinymt32;
//initialize random generator
tinymt32_init (&tinymt32, 0);
int iter;
int sec_iter;
int stop;
int counter;
//initialize database
char *errptr = NULL;
leveldb_options_t *options = leveldb_options_create ();
/* initializeOptions */
leveldb_options_set_create_if_missing (options, 1);
leveldb_options_set_write_buffer_size(options,120000000 );
leveldb_options_set_max_open_files(options,800000);
/*open Database */
leveldb_t *db_helper =
leveldb_open (options, "/mnt/database/database_helper", &errptr);
leveldb_t *db = leveldb_open (options, "/mnt/database/database", &errptr);
leveldb_readoptions_t *readoptions = leveldb_readoptions_create ();
leveldb_writeoptions_t *writeoptions = leveldb_writeoptions_create ();
leveldb_writebatch_t* batch=leveldb_writebatch_create();
int64_t diff = zclock_time ();
//write into database_helper
iter=0;
while( iter < N_KEYS)
{
sec_iter=0;
while((iter<N_KEYS) && (sec_iter<N_BATCH)){
unsigned int key = tinymt32_generate_uint32 (&tinymt32);
unsigned int val = tinymt32_generate_uint32 (&tinymt32);
leveldb_writebatch_put (batch,
(const char *) &key, sizeof (int),
(const char *) &val, sizeof (int));
sec_iter++;
iter++;
}
leveldb_write(
db_helper,
writeoptions,
batch,
&errptr);
if(errptr!=NULL){
printf("\n%s",errptr);
}
assert (errptr == NULL);
leveldb_writebatch_clear(batch);
}
leveldb_writebatch_destroy(batch);
diff = zclock_time () - diff;
printf ("\nrandom write: %d", diff);
diff = zclock_time ();
//write sequentially into db
leveldb_iterator_t *liter = leveldb_create_iterator (db_helper,
readoptions);
leveldb_iter_seek_to_first (liter);
while (leveldb_iter_valid (liter))
{
size_t length;
char key[4];
memcpy (key, leveldb_iter_key (liter, &length), 4);
char val[4];
memcpy (val, leveldb_iter_value (liter, &length), 4);
leveldb_iter_get_error (liter, &errptr);
assert (errptr == NULL);
leveldb_put (db,
writeoptions,
(const char *) &key, sizeof (int),
(const char *) &val, sizeof (int), &errptr);
assert (errptr == NULL);
leveldb_iter_next (liter);
}
diff = zclock_time () - diff;
leveldb_close (db);
leveldb_close (db_helper);
}
