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rocksdb/db/c_test.c

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/* Copyright (c) 2011 The LevelDB Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file. See the AUTHORS file for names of contributors. */
#ifndef ROCKSDB_LITE // Lite does not support C API
#include "rocksdb/c.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <inttypes.h>
const char* phase = "";
static char dbname[200];
static char dbbackupname[200];
static void StartPhase(const char* name) {
fprintf(stderr, "=== Test %s\n", name);
phase = name;
}
static const char* GetTempDir(void) {
const char* ret = getenv("TEST_TMPDIR");
if (ret == NULL || ret[0] == '\0')
ret = "/tmp";
return ret;
}
#define CheckNoError(err) \
if ((err) != NULL) { \
fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, (err)); \
abort(); \
}
#define CheckCondition(cond) \
if (!(cond)) { \
fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, #cond); \
abort(); \
}
static void CheckEqual(const char* expected, const char* v, size_t n) {
if (expected == NULL && v == NULL) {
// ok
} else if (expected != NULL && v != NULL && n == strlen(expected) &&
memcmp(expected, v, n) == 0) {
// ok
return;
} else {
fprintf(stderr, "%s: expected '%s', got '%s'\n",
phase,
(expected ? expected : "(null)"),
(v ? v : "(null"));
abort();
}
}
static void Free(char** ptr) {
if (*ptr) {
free(*ptr);
*ptr = NULL;
}
}
static void CheckGet(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
const char* key,
const char* expected) {
char* err = NULL;
size_t val_len;
char* val;
val = rocksdb_get(db, options, key, strlen(key), &val_len, &err);
CheckNoError(err);
CheckEqual(expected, val, val_len);
Free(&val);
}
static void CheckGetCF(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* handle,
const char* key,
const char* expected) {
char* err = NULL;
size_t val_len;
char* val;
val = rocksdb_get_cf(db, options, handle, key, strlen(key), &val_len, &err);
CheckNoError(err);
CheckEqual(expected, val, val_len);
Free(&val);
}
static void CheckIter(rocksdb_iterator_t* iter,
const char* key, const char* val) {
size_t len;
const char* str;
str = rocksdb_iter_key(iter, &len);
CheckEqual(key, str, len);
str = rocksdb_iter_value(iter, &len);
CheckEqual(val, str, len);
}
// Callback from rocksdb_writebatch_iterate()
static void CheckPut(void* ptr,
const char* k, size_t klen,
const char* v, size_t vlen) {
int* state = (int*) ptr;
CheckCondition(*state < 2);
switch (*state) {
case 0:
CheckEqual("bar", k, klen);
CheckEqual("b", v, vlen);
break;
case 1:
CheckEqual("box", k, klen);
CheckEqual("c", v, vlen);
break;
}
(*state)++;
}
// Callback from rocksdb_writebatch_iterate()
static void CheckDel(void* ptr, const char* k, size_t klen) {
int* state = (int*) ptr;
CheckCondition(*state == 2);
CheckEqual("bar", k, klen);
(*state)++;
}
static void CmpDestroy(void* arg) { }
static int CmpCompare(void* arg, const char* a, size_t alen,
const char* b, size_t blen) {
size_t n = (alen < blen) ? alen : blen;
int r = memcmp(a, b, n);
if (r == 0) {
if (alen < blen) r = -1;
else if (alen > blen) r = +1;
}
return r;
}
static const char* CmpName(void* arg) {
return "foo";
}
// Custom filter policy
static unsigned char fake_filter_result = 1;
static void FilterDestroy(void* arg) { }
static const char* FilterName(void* arg) {
return "TestFilter";
}
static char* FilterCreate(
void* arg,
const char* const* key_array, const size_t* key_length_array,
int num_keys,
size_t* filter_length) {
*filter_length = 4;
char* result = malloc(4);
memcpy(result, "fake", 4);
return result;
}
static unsigned char FilterKeyMatch(
void* arg,
const char* key, size_t length,
const char* filter, size_t filter_length) {
CheckCondition(filter_length == 4);
CheckCondition(memcmp(filter, "fake", 4) == 0);
return fake_filter_result;
}
// Custom compaction filter
static void CFilterDestroy(void* arg) {}
static const char* CFilterName(void* arg) { return "foo"; }
static unsigned char CFilterFilter(void* arg, int level, const char* key,
size_t key_length,
const char* existing_value,
size_t value_length, char** new_value,
size_t* new_value_length,
unsigned char* value_changed) {
if (key_length == 3) {
if (memcmp(key, "bar", key_length) == 0) {
return 1;
} else if (memcmp(key, "baz", key_length) == 0) {
*value_changed = 1;
*new_value = "newbazvalue";
*new_value_length = 11;
return 0;
}
}
return 0;
}
static void CFilterFactoryDestroy(void* arg) {}
static const char* CFilterFactoryName(void* arg) { return "foo"; }
static rocksdb_compactionfilter_t* CFilterCreate(
void* arg, rocksdb_compactionfiltercontext_t* context) {
return rocksdb_compactionfilter_create(NULL, CFilterDestroy, CFilterFilter,
CFilterName);
}
static rocksdb_t* CheckCompaction(rocksdb_t* db, rocksdb_options_t* options,
rocksdb_readoptions_t* roptions,
rocksdb_writeoptions_t* woptions) {
char* err = NULL;
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo", 3, "foovalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "foovalue");
rocksdb_put(db, woptions, "bar", 3, "barvalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "bar", "barvalue");
rocksdb_put(db, woptions, "baz", 3, "bazvalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "baz", "bazvalue");
// Force compaction
rocksdb_compact_range(db, NULL, 0, NULL, 0);
// should have filtered bar, but not foo
CheckGet(db, roptions, "foo", "foovalue");
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "baz", "newbazvalue");
return db;
}
// Custom compaction filter V2.
static void CompactionFilterV2Destroy(void* arg) { }
static const char* CompactionFilterV2Name(void* arg) {
return "TestCompactionFilterV2";
}
static void CompactionFilterV2Filter(
void* arg, int level, size_t num_keys,
const char* const* keys_list, const size_t* keys_list_sizes,
const char* const* existing_values_list, const size_t* existing_values_list_sizes,
char** new_values_list, size_t* new_values_list_sizes,
unsigned char* to_delete_list) {
size_t i;
for (i = 0; i < num_keys; i++) {
// If any value is "gc", it's removed.
if (existing_values_list_sizes[i] == 2 && memcmp(existing_values_list[i], "gc", 2) == 0) {
to_delete_list[i] = 1;
} else if (existing_values_list_sizes[i] == 6 && memcmp(existing_values_list[i], "gc all", 6) == 0) {
// If any value is "gc all", all keys are removed.
size_t j;
for (j = 0; j < num_keys; j++) {
to_delete_list[j] = 1;
}
return;
} else if (existing_values_list_sizes[i] == 6 && memcmp(existing_values_list[i], "change", 6) == 0) {
// If value is "change", set changed value to "changed".
size_t len;
len = strlen("changed");
new_values_list[i] = malloc(len);
memcpy(new_values_list[i], "changed", len);
new_values_list_sizes[i] = len;
} else {
// Otherwise, no keys are removed.
}
}
}
// Custom prefix extractor for compaction filter V2 which extracts first 3 characters.
static void CFV2PrefixExtractorDestroy(void* arg) { }
static char* CFV2PrefixExtractorTransform(void* arg, const char* key, size_t length, size_t* dst_length) {
// Verify keys are maximum length 4; this verifies fix for a
// prior bug which was passing the RocksDB-encoded key with
// logical timestamp suffix instead of parsed user key.
if (length > 4) {
fprintf(stderr, "%s:%d: %s: key %s is not user key\n", __FILE__, __LINE__, phase, key);
abort();
}
*dst_length = length < 3 ? length : 3;
return (char*)key;
}
static unsigned char CFV2PrefixExtractorInDomain(void* state, const char* key, size_t length) {
return 1;
}
static unsigned char CFV2PrefixExtractorInRange(void* state, const char* key, size_t length) {
return 1;
}
static const char* CFV2PrefixExtractorName(void* state) {
return "TestCFV2PrefixExtractor";
}
// Custom compaction filter factory V2.
static void CompactionFilterFactoryV2Destroy(void* arg) {
rocksdb_slicetransform_destroy((rocksdb_slicetransform_t*)arg);
}
static const char* CompactionFilterFactoryV2Name(void* arg) {
return "TestCompactionFilterFactoryV2";
}
static rocksdb_compactionfilterv2_t* CompactionFilterFactoryV2Create(
void* state, const rocksdb_compactionfiltercontext_t* context) {
return rocksdb_compactionfilterv2_create(state, CompactionFilterV2Destroy,
CompactionFilterV2Filter,
CompactionFilterV2Name);
}
// Custom merge operator
static void MergeOperatorDestroy(void* arg) { }
static const char* MergeOperatorName(void* arg) {
return "TestMergeOperator";
}
static char* MergeOperatorFullMerge(
void* arg,
const char* key, size_t key_length,
const char* existing_value, size_t existing_value_length,
const char* const* operands_list, const size_t* operands_list_length,
int num_operands,
unsigned char* success, size_t* new_value_length) {
*new_value_length = 4;
*success = 1;
char* result = malloc(4);
memcpy(result, "fake", 4);
return result;
}
static char* MergeOperatorPartialMerge(
void* arg,
const char* key, size_t key_length,
const char* const* operands_list, const size_t* operands_list_length,
int num_operands,
unsigned char* success, size_t* new_value_length) {
*new_value_length = 4;
*success = 1;
char* result = malloc(4);
memcpy(result, "fake", 4);
return result;
}
int main(int argc, char** argv) {
rocksdb_t* db;
rocksdb_comparator_t* cmp;
rocksdb_cache_t* cache;
rocksdb_env_t* env;
rocksdb_options_t* options;
rocksdb_block_based_table_options_t* table_options;
rocksdb_readoptions_t* roptions;
rocksdb_writeoptions_t* woptions;
char* err = NULL;
int run = -1;
snprintf(dbname, sizeof(dbname),
"%s/rocksdb_c_test-%d",
GetTempDir(),
((int) geteuid()));
snprintf(dbbackupname, sizeof(dbbackupname),
"%s/rocksdb_c_test-%d-backup",
GetTempDir(),
((int) geteuid()));
StartPhase("create_objects");
cmp = rocksdb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
env = rocksdb_create_default_env();
cache = rocksdb_cache_create_lru(100000);
options = rocksdb_options_create();
rocksdb_options_set_comparator(options, cmp);
rocksdb_options_set_error_if_exists(options, 1);
rocksdb_options_set_env(options, env);
rocksdb_options_set_info_log(options, NULL);
rocksdb_options_set_write_buffer_size(options, 100000);
rocksdb_options_set_paranoid_checks(options, 1);
rocksdb_options_set_max_open_files(options, 10);
table_options = rocksdb_block_based_options_create();
rocksdb_block_based_options_set_block_cache(table_options, cache);
rocksdb_options_set_block_based_table_factory(options, table_options);
rocksdb_options_set_compression(options, rocksdb_no_compression);
rocksdb_options_set_compression_options(options, -14, -1, 0);
int compression_levels[] = {rocksdb_no_compression, rocksdb_no_compression,
rocksdb_no_compression, rocksdb_no_compression};
rocksdb_options_set_compression_per_level(options, compression_levels, 4);
roptions = rocksdb_readoptions_create();
rocksdb_readoptions_set_verify_checksums(roptions, 1);
rocksdb_readoptions_set_fill_cache(roptions, 0);
woptions = rocksdb_writeoptions_create();
rocksdb_writeoptions_set_sync(woptions, 1);
StartPhase("destroy");
rocksdb_destroy_db(options, dbname, &err);
Free(&err);
StartPhase("open_error");
rocksdb_open(options, dbname, &err);
CheckCondition(err != NULL);
Free(&err);
StartPhase("open");
rocksdb_options_set_create_if_missing(options, 1);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
StartPhase("put");
rocksdb_put(db, woptions, "foo", 3, "hello", 5, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "hello");
StartPhase("backup_and_restore");
{
rocksdb_destroy_db(options, dbbackupname, &err);
CheckNoError(err);
rocksdb_backup_engine_t *be = rocksdb_backup_engine_open(options, dbbackupname, &err);
CheckNoError(err);
rocksdb_backup_engine_create_new_backup(be, db, &err);
CheckNoError(err);
rocksdb_delete(db, woptions, "foo", 3, &err);
CheckNoError(err);
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
CheckNoError(err);
rocksdb_restore_options_t *restore_options = rocksdb_restore_options_create();
rocksdb_restore_options_set_keep_log_files(restore_options, 0);
rocksdb_backup_engine_restore_db_from_latest_backup(be, dbname, dbname, restore_options, &err);
CheckNoError(err);
rocksdb_restore_options_destroy(restore_options);
rocksdb_options_set_error_if_exists(options, 0);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_options_set_error_if_exists(options, 1);
CheckGet(db, roptions, "foo", "hello");
rocksdb_backup_engine_close(be);
}
StartPhase("compactall");
rocksdb_compact_range(db, NULL, 0, NULL, 0);
CheckGet(db, roptions, "foo", "hello");
StartPhase("compactrange");
rocksdb_compact_range(db, "a", 1, "z", 1);
CheckGet(db, roptions, "foo", "hello");
StartPhase("writebatch");
{
rocksdb_writebatch_t* wb = rocksdb_writebatch_create();
rocksdb_writebatch_put(wb, "foo", 3, "a", 1);
rocksdb_writebatch_clear(wb);
rocksdb_writebatch_put(wb, "bar", 3, "b", 1);
rocksdb_writebatch_put(wb, "box", 3, "c", 1);
rocksdb_writebatch_delete(wb, "bar", 3);
rocksdb_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;
rocksdb_writebatch_iterate(wb, &pos, CheckPut, CheckDel);
CheckCondition(pos == 3);
rocksdb_writebatch_destroy(wb);
}
StartPhase("writebatch_vectors");
{
rocksdb_writebatch_t* wb = rocksdb_writebatch_create();
const char* k_list[2] = { "z", "ap" };
const size_t k_sizes[2] = { 1, 2 };
const char* v_list[3] = { "x", "y", "z" };
const size_t v_sizes[3] = { 1, 1, 1 };
rocksdb_writebatch_putv(wb, 2, k_list, k_sizes, 3, v_list, v_sizes);
rocksdb_write(db, woptions, wb, &err);
CheckNoError(err);
CheckGet(db, roptions, "zap", "xyz");
rocksdb_writebatch_delete(wb, "zap", 3);
rocksdb_write(db, woptions, wb, &err);
CheckNoError(err);
CheckGet(db, roptions, "zap", NULL);
rocksdb_writebatch_destroy(wb);
}
StartPhase("writebatch_rep");
{
rocksdb_writebatch_t* wb1 = rocksdb_writebatch_create();
rocksdb_writebatch_put(wb1, "baz", 3, "d", 1);
rocksdb_writebatch_put(wb1, "quux", 4, "e", 1);
rocksdb_writebatch_delete(wb1, "quux", 4);
size_t repsize1 = 0;
const char* rep = rocksdb_writebatch_data(wb1, &repsize1);
rocksdb_writebatch_t* wb2 = rocksdb_writebatch_create_from(rep, repsize1);
CheckCondition(rocksdb_writebatch_count(wb1) ==
rocksdb_writebatch_count(wb2));
size_t repsize2 = 0;
CheckCondition(
memcmp(rep, rocksdb_writebatch_data(wb2, &repsize2), repsize1) == 0);
rocksdb_writebatch_destroy(wb1);
rocksdb_writebatch_destroy(wb2);
}
StartPhase("iter");
{
rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_seek_to_first(iter);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "box", "c");
rocksdb_iter_next(iter);
CheckIter(iter, "foo", "hello");
rocksdb_iter_prev(iter);
CheckIter(iter, "box", "c");
rocksdb_iter_prev(iter);
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_seek_to_last(iter);
CheckIter(iter, "foo", "hello");
rocksdb_iter_seek(iter, "b", 1);
CheckIter(iter, "box", "c");
rocksdb_iter_get_error(iter, &err);
CheckNoError(err);
rocksdb_iter_destroy(iter);
}
StartPhase("multiget");
{
const char* keys[3] = { "box", "foo", "notfound" };
const size_t keys_sizes[3] = { 3, 3, 8 };
char* vals[3];
size_t vals_sizes[3];
char* errs[3];
rocksdb_multi_get(db, roptions, 3, keys, keys_sizes, vals, vals_sizes, errs);
int i;
for (i = 0; i < 3; i++) {
CheckEqual(NULL, errs[i], 0);
switch (i) {
case 0:
CheckEqual("c", vals[i], vals_sizes[i]);
break;
case 1:
CheckEqual("hello", vals[i], vals_sizes[i]);
break;
case 2:
CheckEqual(NULL, vals[i], vals_sizes[i]);
break;
}
Free(&vals[i]);
}
}
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 };
rocksdb_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);
rocksdb_put(db, woptions, keybuf, strlen(keybuf), valbuf, strlen(valbuf),
&err);
CheckNoError(err);
}
rocksdb_approximate_sizes(db, 2, start, start_len, limit, limit_len, sizes);
CheckCondition(sizes[0] > 0);
CheckCondition(sizes[1] > 0);
}
StartPhase("property");
{
char* prop = rocksdb_property_value(db, "nosuchprop");
CheckCondition(prop == NULL);
prop = rocksdb_property_value(db, "rocksdb.stats");
CheckCondition(prop != NULL);
Free(&prop);
}
StartPhase("snapshot");
{
const rocksdb_snapshot_t* snap;
snap = rocksdb_create_snapshot(db);
rocksdb_delete(db, woptions, "foo", 3, &err);
CheckNoError(err);
rocksdb_readoptions_set_snapshot(roptions, snap);
CheckGet(db, roptions, "foo", "hello");
rocksdb_readoptions_set_snapshot(roptions, NULL);
CheckGet(db, roptions, "foo", NULL);
rocksdb_release_snapshot(db, snap);
}
StartPhase("repair");
{
// If we do not compact here, then the lazy deletion of
// files (https://reviews.facebook.net/D6123) would leave
// around deleted files and the repair process will find
// those files and put them back into the database.
rocksdb_compact_range(db, NULL, 0, NULL, 0);
rocksdb_close(db);
rocksdb_options_set_create_if_missing(options, 0);
rocksdb_options_set_error_if_exists(options, 0);
rocksdb_repair_db(options, dbname, &err);
CheckNoError(err);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", NULL);
CheckGet(db, roptions, "bar", NULL);
CheckGet(db, roptions, "box", "c");
rocksdb_options_set_create_if_missing(options, 1);
rocksdb_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);
rocksdb_filterpolicy_t* policy;
if (run == 0) {
policy = rocksdb_filterpolicy_create(
NULL, FilterDestroy, FilterCreate, FilterKeyMatch, NULL, FilterName);
} else {
policy = rocksdb_filterpolicy_create_bloom(10);
}
rocksdb_block_based_options_set_filter_policy(table_options, policy);
// Create new database
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
rocksdb_options_set_block_based_table_factory(options, table_options);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo", 3, "foovalue", 8, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar", 3, "barvalue", 8, &err);
CheckNoError(err);
rocksdb_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");
}
// Reset the policy
rocksdb_block_based_options_set_filter_policy(table_options, NULL);
rocksdb_options_set_block_based_table_factory(options, table_options);
}
StartPhase("compaction_filter");
{
rocksdb_options_t* options_with_filter = rocksdb_options_create();
rocksdb_options_set_create_if_missing(options_with_filter, 1);
rocksdb_compactionfilter_t* cfilter;
cfilter = rocksdb_compactionfilter_create(NULL, CFilterDestroy,
CFilterFilter, CFilterName);
// Create new database
rocksdb_close(db);
rocksdb_destroy_db(options_with_filter, dbname, &err);
rocksdb_options_set_compaction_filter(options_with_filter, cfilter);
db = CheckCompaction(db, options_with_filter, roptions, woptions);
rocksdb_options_set_compaction_filter(options_with_filter, NULL);
rocksdb_compactionfilter_destroy(cfilter);
rocksdb_options_destroy(options_with_filter);
}
StartPhase("compaction_filter_factory");
{
rocksdb_options_t* options_with_filter_factory = rocksdb_options_create();
rocksdb_options_set_create_if_missing(options_with_filter_factory, 1);
rocksdb_compactionfilterfactory_t* factory;
factory = rocksdb_compactionfilterfactory_create(
NULL, CFilterFactoryDestroy, CFilterCreate, CFilterFactoryName);
// Create new database
rocksdb_close(db);
rocksdb_destroy_db(options_with_filter_factory, dbname, &err);
rocksdb_options_set_compaction_filter_factory(options_with_filter_factory,
factory);
db = CheckCompaction(db, options_with_filter_factory, roptions, woptions);
rocksdb_options_set_compaction_filter_factory(
options_with_filter_factory, NULL);
rocksdb_options_destroy(options_with_filter_factory);
}
StartPhase("compaction_filter_v2");
{
rocksdb_compactionfilterfactoryv2_t* factory;
rocksdb_slicetransform_t* prefix_extractor;
prefix_extractor = rocksdb_slicetransform_create(
NULL, CFV2PrefixExtractorDestroy, CFV2PrefixExtractorTransform,
CFV2PrefixExtractorInDomain, CFV2PrefixExtractorInRange,
CFV2PrefixExtractorName);
factory = rocksdb_compactionfilterfactoryv2_create(
prefix_extractor, prefix_extractor, CompactionFilterFactoryV2Destroy,
CompactionFilterFactoryV2Create, CompactionFilterFactoryV2Name);
// Create new database
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
rocksdb_options_set_compaction_filter_factory_v2(options, factory);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
// Only foo2 is GC'd, foo3 is changed.
rocksdb_put(db, woptions, "foo1", 4, "no gc", 5, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo2", 4, "gc", 2, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo3", 4, "change", 6, &err);
CheckNoError(err);
// All bars are GC'd.
rocksdb_put(db, woptions, "bar1", 4, "no gc", 5, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar2", 4, "gc all", 6, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar3", 4, "no gc", 5, &err);
CheckNoError(err);
// Compact the DB to garbage collect.
rocksdb_compact_range(db, NULL, 0, NULL, 0);
// Verify foo entries.
CheckGet(db, roptions, "foo1", "no gc");
CheckGet(db, roptions, "foo2", NULL);
CheckGet(db, roptions, "foo3", "changed");
// Verify bar entries were all deleted.
CheckGet(db, roptions, "bar1", NULL);
CheckGet(db, roptions, "bar2", NULL);
CheckGet(db, roptions, "bar3", NULL);
}
StartPhase("merge_operator");
{
rocksdb_mergeoperator_t* merge_operator;
merge_operator = rocksdb_mergeoperator_create(
NULL, MergeOperatorDestroy, MergeOperatorFullMerge,
MergeOperatorPartialMerge, NULL, MergeOperatorName);
// Create new database
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
rocksdb_options_set_merge_operator(options, merge_operator);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo", 3, "foovalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "foovalue");
rocksdb_merge(db, woptions, "foo", 3, "barvalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "foo", "fake");
// Merge of a non-existing value
rocksdb_merge(db, woptions, "bar", 3, "barvalue", 8, &err);
CheckNoError(err);
CheckGet(db, roptions, "bar", "fake");
}
StartPhase("columnfamilies");
{
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
CheckNoError(err)
rocksdb_options_t* db_options = rocksdb_options_create();
rocksdb_options_set_create_if_missing(db_options, 1);
db = rocksdb_open(db_options, dbname, &err);
CheckNoError(err)
rocksdb_column_family_handle_t* cfh;
cfh = rocksdb_create_column_family(db, db_options, "cf1", &err);
rocksdb_column_family_handle_destroy(cfh);
CheckNoError(err);
rocksdb_close(db);
size_t cflen;
char** column_fams = rocksdb_list_column_families(db_options, dbname, &cflen, &err);
CheckNoError(err);
CheckEqual("default", column_fams[0], 7);
CheckEqual("cf1", column_fams[1], 3);
CheckCondition(cflen == 2);
rocksdb_list_column_families_destroy(column_fams, cflen);
rocksdb_options_t* cf_options = rocksdb_options_create();
const char* cf_names[2] = {"default", "cf1"};
const rocksdb_options_t* cf_opts[2] = {cf_options, cf_options};
rocksdb_column_family_handle_t* handles[2];
db = rocksdb_open_column_families(db_options, dbname, 2, cf_names, cf_opts, handles, &err);
CheckNoError(err);
rocksdb_put_cf(db, woptions, handles[1], "foo", 3, "hello", 5, &err);
CheckNoError(err);
CheckGetCF(db, roptions, handles[1], "foo", "hello");
rocksdb_delete_cf(db, woptions, handles[1], "foo", 3, &err);
CheckNoError(err);
CheckGetCF(db, roptions, handles[1], "foo", NULL);
rocksdb_writebatch_t* wb = rocksdb_writebatch_create();
rocksdb_writebatch_put_cf(wb, handles[1], "baz", 3, "a", 1);
rocksdb_writebatch_clear(wb);
rocksdb_writebatch_put_cf(wb, handles[1], "bar", 3, "b", 1);
rocksdb_writebatch_put_cf(wb, handles[1], "box", 3, "c", 1);
rocksdb_writebatch_delete_cf(wb, handles[1], "bar", 3);
rocksdb_write(db, woptions, wb, &err);
CheckNoError(err);
CheckGetCF(db, roptions, handles[1], "baz", NULL);
CheckGetCF(db, roptions, handles[1], "bar", NULL);
CheckGetCF(db, roptions, handles[1], "box", "c");
rocksdb_writebatch_destroy(wb);
const char* keys[3] = { "box", "box", "barfooxx" };
const rocksdb_column_family_handle_t* get_handles[3] = { handles[0], handles[1], handles[1] };
const size_t keys_sizes[3] = { 3, 3, 8 };
char* vals[3];
size_t vals_sizes[3];
char* errs[3];
rocksdb_multi_get_cf(db, roptions, get_handles, 3, keys, keys_sizes, vals, vals_sizes, errs);
int i;
for (i = 0; i < 3; i++) {
CheckEqual(NULL, errs[i], 0);
switch (i) {
case 0:
CheckEqual(NULL, vals[i], vals_sizes[i]); // wrong cf
break;
case 1:
CheckEqual("c", vals[i], vals_sizes[i]); // bingo
break;
case 2:
CheckEqual(NULL, vals[i], vals_sizes[i]); // normal not found
break;
}
Free(&vals[i]);
}
rocksdb_iterator_t* iter = rocksdb_create_iterator_cf(db, roptions, handles[1]);
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_seek_to_first(iter);
CheckCondition(rocksdb_iter_valid(iter));
for (i = 0; rocksdb_iter_valid(iter) != 0; rocksdb_iter_next(iter)) {
i++;
}
CheckCondition(i == 1);
rocksdb_iter_get_error(iter, &err);
CheckNoError(err);
rocksdb_iter_destroy(iter);
rocksdb_drop_column_family(db, handles[1], &err);
CheckNoError(err);
for (i = 0; i < 2; i++) {
rocksdb_column_family_handle_destroy(handles[i]);
}
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
rocksdb_options_destroy(db_options);
rocksdb_options_destroy(cf_options);
}
StartPhase("prefix");
{
// Create new database
rocksdb_options_set_allow_mmap_reads(options, 1);
rocksdb_options_set_prefix_extractor(options, rocksdb_slicetransform_create_fixed_prefix(3));
rocksdb_options_set_hash_skip_list_rep(options, 5000, 4, 4);
rocksdb_options_set_plain_table_factory(options, 4, 10, 0.75, 16);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo1", 4, "foo", 3, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo2", 4, "foo", 3, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "foo3", 4, "foo", 3, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar1", 4, "bar", 3, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar2", 4, "bar", 3, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "bar3", 4, "bar", 3, &err);
CheckNoError(err);
rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_seek(iter, "bar", 3);
rocksdb_iter_get_error(iter, &err);
CheckNoError(err);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "bar1", "bar");
rocksdb_iter_next(iter);
CheckIter(iter, "bar2", "bar");
rocksdb_iter_next(iter);
CheckIter(iter, "bar3", "bar");
rocksdb_iter_get_error(iter, &err);
CheckNoError(err);
rocksdb_iter_destroy(iter);
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
}
StartPhase("cuckoo_options");
{
rocksdb_cuckoo_table_options_t* cuckoo_options;
cuckoo_options = rocksdb_cuckoo_options_create();
rocksdb_cuckoo_options_set_hash_ratio(cuckoo_options, 0.5);
rocksdb_cuckoo_options_set_max_search_depth(cuckoo_options, 200);
rocksdb_cuckoo_options_set_cuckoo_block_size(cuckoo_options, 10);
rocksdb_cuckoo_options_set_identity_as_first_hash(cuckoo_options, 1);
rocksdb_cuckoo_options_set_use_module_hash(cuckoo_options, 0);
rocksdb_options_set_cuckoo_table_factory(options, cuckoo_options);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_cuckoo_options_destroy(cuckoo_options);
}
StartPhase("iterate_upper_bound");
{
// Create new empty database
rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err);
CheckNoError(err);
rocksdb_options_set_prefix_extractor(options, NULL);
db = rocksdb_open(options, dbname, &err);
CheckNoError(err);
rocksdb_put(db, woptions, "a", 1, "0", 1, &err); CheckNoError(err);
rocksdb_put(db, woptions, "foo", 3, "bar", 3, &err); CheckNoError(err);
rocksdb_put(db, woptions, "foo1", 4, "bar1", 4, &err); CheckNoError(err);
rocksdb_put(db, woptions, "g1", 2, "0", 1, &err); CheckNoError(err);
// testing basic case with no iterate_upper_bound and no prefix_extractor
{
rocksdb_readoptions_set_iterate_upper_bound(roptions, NULL, 0);
rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
rocksdb_iter_seek(iter, "foo", 3);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "foo", "bar");
rocksdb_iter_next(iter);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "foo1", "bar1");
rocksdb_iter_next(iter);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "g1", "0");
rocksdb_iter_destroy(iter);
}
// testing iterate_upper_bound and forward iterator
// to make sure it stops at bound
{
// iterate_upper_bound points beyond the last expected entry
rocksdb_readoptions_set_iterate_upper_bound(roptions, "foo2", 4);
rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
rocksdb_iter_seek(iter, "foo", 3);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "foo", "bar");
rocksdb_iter_next(iter);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "foo1", "bar1");
rocksdb_iter_next(iter);
// should stop here...
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_destroy(iter);
}
}
StartPhase("cleanup");
rocksdb_close(db);
rocksdb_options_destroy(options);
rocksdb_block_based_options_destroy(table_options);
rocksdb_readoptions_destroy(roptions);
rocksdb_writeoptions_destroy(woptions);
rocksdb_cache_destroy(cache);
rocksdb_comparator_destroy(cmp);
rocksdb_env_destroy(env);
fprintf(stderr, "PASS\n");
return 0;
}
#else
#include <stdio.h>
int main() {
fprintf(stderr, "SKIPPED\n");
return 0;
}
#endif // !ROCKSDB_LITE