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db_test_util.cc
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// 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.
#include "db/db_test_util.h"
#include "db/forward_iterator.h"
#include "env/mock_env.h"
#include "rocksdb/convenience.h"
#include "rocksdb/env_encryption.h"
#include "rocksdb/utilities/object_registry.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
namespace {
int64_t MaybeCurrentTime(Env* env) {
int64_t time = 1337346000; // arbitrary fallback default
env->GetCurrentTime(&time).PermitUncheckedError();
return time;
}
} // namespace
// Special Env used to delay background operations
SpecialEnv::SpecialEnv(Env* base, bool time_elapse_only_sleep)
: EnvWrapper(base),
maybe_starting_time_(MaybeCurrentTime(base)),
rnd_(301),
sleep_counter_(this),
time_elapse_only_sleep_(time_elapse_only_sleep),
no_slowdown_(time_elapse_only_sleep) {
delay_sstable_sync_.store(false, std::memory_order_release);
drop_writes_.store(false, std::memory_order_release);
no_space_.store(false, std::memory_order_release);
non_writable_.store(false, std::memory_order_release);
count_random_reads_ = false;
count_sequential_reads_ = false;
manifest_sync_error_.store(false, std::memory_order_release);
manifest_write_error_.store(false, std::memory_order_release);
log_write_error_.store(false, std::memory_order_release);
no_file_overwrite_.store(false, std::memory_order_release);
random_file_open_counter_.store(0, std::memory_order_relaxed);
delete_count_.store(0, std::memory_order_relaxed);
num_open_wal_file_.store(0);
log_write_slowdown_ = 0;
bytes_written_ = 0;
sync_counter_ = 0;
non_writeable_rate_ = 0;
new_writable_count_ = 0;
non_writable_count_ = 0;
table_write_callback_ = nullptr;
}
DBTestBase::DBTestBase(const std::string path, bool env_do_fsync)
: mem_env_(nullptr), encrypted_env_(nullptr), option_config_(kDefault) {
Env* base_env = Env::Default();
ConfigOptions config_options;
EXPECT_OK(test::CreateEnvFromSystem(config_options, &base_env, &env_guard_));
EXPECT_NE(nullptr, base_env);
if (getenv("MEM_ENV")) {
mem_env_ = new MockEnv(base_env);
}
#ifndef ROCKSDB_LITE
if (getenv("ENCRYPTED_ENV")) {
std::shared_ptr<EncryptionProvider> provider;
std::string provider_id = getenv("ENCRYPTED_ENV");
if (provider_id.find("=") == std::string::npos &&
!EndsWith(provider_id, "://test")) {
provider_id = provider_id + "://test";
}
EXPECT_OK(EncryptionProvider::CreateFromString(ConfigOptions(), provider_id,
&provider));
encrypted_env_ = NewEncryptedEnv(mem_env_ ? mem_env_ : base_env, provider);
}
#endif // !ROCKSDB_LITE
env_ = new SpecialEnv(encrypted_env_ ? encrypted_env_
: (mem_env_ ? mem_env_ : base_env));
env_->SetBackgroundThreads(1, Env::LOW);
env_->SetBackgroundThreads(1, Env::HIGH);
env_->skip_fsync_ = !env_do_fsync;
dbname_ = test::PerThreadDBPath(env_, path);
alternative_wal_dir_ = dbname_ + "/wal";
alternative_db_log_dir_ = dbname_ + "/db_log_dir";
auto options = CurrentOptions();
options.env = env_;
auto delete_options = options;
delete_options.wal_dir = alternative_wal_dir_;
EXPECT_OK(DestroyDB(dbname_, delete_options));
// Destroy it for not alternative WAL dir is used.
EXPECT_OK(DestroyDB(dbname_, options));
db_ = nullptr;
Reopen(options);
Random::GetTLSInstance()->Reset(0xdeadbeef);
}
DBTestBase::~DBTestBase() {
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
Close();
Options options;
options.db_paths.emplace_back(dbname_, 0);
options.db_paths.emplace_back(dbname_ + "_2", 0);
options.db_paths.emplace_back(dbname_ + "_3", 0);
options.db_paths.emplace_back(dbname_ + "_4", 0);
options.env = env_;
if (getenv("KEEP_DB")) {
printf("DB is still at %s\n", dbname_.c_str());
} else {
EXPECT_OK(DestroyDB(dbname_, options));
}
delete env_;
}
bool DBTestBase::ShouldSkipOptions(int option_config, int skip_mask) {
#ifdef ROCKSDB_LITE
// These options are not supported in ROCKSDB_LITE
if (option_config == kHashSkipList ||
option_config == kPlainTableFirstBytePrefix ||
option_config == kPlainTableCappedPrefix ||
option_config == kPlainTableCappedPrefixNonMmap ||
option_config == kPlainTableAllBytesPrefix ||
option_config == kVectorRep || option_config == kHashLinkList ||
option_config == kUniversalCompaction ||
option_config == kUniversalCompactionMultiLevel ||
option_config == kUniversalSubcompactions ||
option_config == kFIFOCompaction ||
option_config == kConcurrentSkipList) {
return true;
}
#endif
if ((skip_mask & kSkipUniversalCompaction) &&
(option_config == kUniversalCompaction ||
option_config == kUniversalCompactionMultiLevel ||
option_config == kUniversalSubcompactions)) {
return true;
}
if ((skip_mask & kSkipMergePut) && option_config == kMergePut) {
return true;
}
if ((skip_mask & kSkipNoSeekToLast) &&
(option_config == kHashLinkList || option_config == kHashSkipList)) {
return true;
}
if ((skip_mask & kSkipPlainTable) &&
(option_config == kPlainTableAllBytesPrefix ||
option_config == kPlainTableFirstBytePrefix ||
option_config == kPlainTableCappedPrefix ||
option_config == kPlainTableCappedPrefixNonMmap)) {
return true;
}
if ((skip_mask & kSkipHashIndex) &&
(option_config == kBlockBasedTableWithPrefixHashIndex ||
option_config == kBlockBasedTableWithWholeKeyHashIndex)) {
return true;
}
if ((skip_mask & kSkipFIFOCompaction) && option_config == kFIFOCompaction) {
return true;
}
if ((skip_mask & kSkipMmapReads) && option_config == kWalDirAndMmapReads) {
return true;
}
return false;
}
// Switch to a fresh database with the next option configuration to
// test. Return false if there are no more configurations to test.
bool DBTestBase::ChangeOptions(int skip_mask) {
for (option_config_++; option_config_ < kEnd; option_config_++) {
if (ShouldSkipOptions(option_config_, skip_mask)) {
continue;
}
break;
}
if (option_config_ >= kEnd) {
Destroy(last_options_);
return false;
} else {
auto options = CurrentOptions();
options.create_if_missing = true;
DestroyAndReopen(options);
return true;
}
}
// Switch between different compaction styles.
bool DBTestBase::ChangeCompactOptions() {
if (option_config_ == kDefault) {
option_config_ = kUniversalCompaction;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kUniversalCompaction) {
option_config_ = kUniversalCompactionMultiLevel;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kUniversalCompactionMultiLevel) {
option_config_ = kLevelSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
Reopen(options);
return true;
} else if (option_config_ == kLevelSubcompactions) {
option_config_ = kUniversalSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
Reopen(options);
return true;
} else {
return false;
}
}
// Switch between different WAL settings
bool DBTestBase::ChangeWalOptions() {
if (option_config_ == kDefault) {
option_config_ = kDBLogDir;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kDBLogDir) {
option_config_ = kWalDirAndMmapReads;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kWalDirAndMmapReads) {
option_config_ = kRecycleLogFiles;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
Reopen(options);
return true;
} else {
return false;
}
}
// Switch between different filter policy
// Jump from kDefault to kFilter to kFullFilter
bool DBTestBase::ChangeFilterOptions() {
if (option_config_ == kDefault) {
option_config_ = kFilter;
} else if (option_config_ == kFilter) {
option_config_ = kFullFilterWithNewTableReaderForCompactions;
} else if (option_config_ == kFullFilterWithNewTableReaderForCompactions) {
option_config_ = kPartitionedFilterWithNewTableReaderForCompactions;
} else {
return false;
}
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
}
// Switch between different DB options for file ingestion tests.
bool DBTestBase::ChangeOptionsForFileIngestionTest() {
if (option_config_ == kDefault) {
option_config_ = kUniversalCompaction;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
} else if (option_config_ == kUniversalCompaction) {
option_config_ = kUniversalCompactionMultiLevel;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
} else if (option_config_ == kUniversalCompactionMultiLevel) {
option_config_ = kLevelSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
TryReopen(options);
return true;
} else if (option_config_ == kLevelSubcompactions) {
option_config_ = kUniversalSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
TryReopen(options);
return true;
} else if (option_config_ == kUniversalSubcompactions) {
option_config_ = kDirectIO;
Destroy(last_options_);
auto options = CurrentOptions();
TryReopen(options);
return true;
} else {
return false;
}
}
// Return the current option configuration.
Options DBTestBase::CurrentOptions(
const anon::OptionsOverride& options_override) const {
return GetOptions(option_config_, GetDefaultOptions(), options_override);
}
Options DBTestBase::CurrentOptions(
const Options& default_options,
const anon::OptionsOverride& options_override) const {
return GetOptions(option_config_, default_options, options_override);
}
Options DBTestBase::GetDefaultOptions() const {
Options options;
options.write_buffer_size = 4090 * 4096;
options.target_file_size_base = 2 * 1024 * 1024;
options.max_bytes_for_level_base = 10 * 1024 * 1024;
options.max_open_files = 5000;
options.wal_recovery_mode = WALRecoveryMode::kTolerateCorruptedTailRecords;
options.compaction_pri = CompactionPri::kByCompensatedSize;
options.env = env_;
if (!env_->skip_fsync_) {
options.track_and_verify_wals_in_manifest = true;
}
return options;
}
Options DBTestBase::GetOptions(
int option_config, const Options& default_options,
const anon::OptionsOverride& options_override) const {
// this redundant copy is to minimize code change w/o having lint error.
Options options = default_options;
BlockBasedTableOptions table_options;
bool set_block_based_table_factory = true;
#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && \
!defined(OS_AIX)
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearCallBack(
"NewRandomAccessFile:O_DIRECT");
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearCallBack(
"NewWritableFile:O_DIRECT");
#endif
bool can_allow_mmap = IsMemoryMappedAccessSupported();
switch (option_config) {
#ifndef ROCKSDB_LITE
case kHashSkipList:
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.memtable_factory.reset(NewHashSkipListRepFactory(16));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kPlainTableFirstBytePrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableCappedPrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewCappedPrefixTransform(8));
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableCappedPrefixNonMmap:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewCappedPrefixTransform(8));
options.allow_mmap_reads = false;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableAllBytesPrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewNoopTransform());
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kVectorRep:
options.memtable_factory.reset(new VectorRepFactory(100));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kHashLinkList:
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.memtable_factory.reset(
NewHashLinkListRepFactory(4, 0, 3, true, 4));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kDirectIO: {
options.use_direct_reads = true;
options.use_direct_io_for_flush_and_compaction = true;
options.compaction_readahead_size = 2 * 1024 * 1024;
SetupSyncPointsToMockDirectIO();
break;
}
#endif // ROCKSDB_LITE
case kMergePut:
options.merge_operator = MergeOperators::CreatePutOperator();
break;
case kFilter:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, true));
break;
case kFullFilterWithNewTableReaderForCompactions:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
options.new_table_reader_for_compaction_inputs = true;
options.compaction_readahead_size = 10 * 1024 * 1024;
break;
case kPartitionedFilterWithNewTableReaderForCompactions:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
table_options.partition_filters = true;
table_options.index_type =
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
options.new_table_reader_for_compaction_inputs = true;
options.compaction_readahead_size = 10 * 1024 * 1024;
break;
case kUncompressed:
options.compression = kNoCompression;
break;
case kNumLevel_3:
options.num_levels = 3;
break;
case kDBLogDir:
options.db_log_dir = alternative_db_log_dir_;
break;
case kWalDirAndMmapReads:
options.wal_dir = alternative_wal_dir_;
// mmap reads should be orthogonal to WalDir setting, so we piggyback to
// this option config to test mmap reads as well
options.allow_mmap_reads = can_allow_mmap;
break;
case kManifestFileSize:
options.max_manifest_file_size = 50; // 50 bytes
break;
case kPerfOptions:
options.soft_rate_limit = 2.0;
options.delayed_write_rate = 8 * 1024 * 1024;
options.report_bg_io_stats = true;
// TODO(3.13) -- test more options
break;
case kUniversalCompaction:
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 1;
break;
case kUniversalCompactionMultiLevel:
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 8;
break;
case kCompressedBlockCache:
options.allow_mmap_writes = can_allow_mmap;
table_options.block_cache_compressed = NewLRUCache(8 * 1024 * 1024);
break;
case kInfiniteMaxOpenFiles:
options.max_open_files = -1;
break;
case kxxHashChecksum: {
table_options.checksum = kxxHash;
break;
}
case kxxHash64Checksum: {
table_options.checksum = kxxHash64;
break;
}
case kFIFOCompaction: {
options.compaction_style = kCompactionStyleFIFO;
options.max_open_files = -1;
break;
}
case kBlockBasedTableWithPrefixHashIndex: {
table_options.index_type = BlockBasedTableOptions::kHashSearch;
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
break;
}
case kBlockBasedTableWithWholeKeyHashIndex: {
table_options.index_type = BlockBasedTableOptions::kHashSearch;
options.prefix_extractor.reset(NewNoopTransform());
break;
}
case kBlockBasedTableWithPartitionedIndex: {
table_options.format_version = 3;
table_options.index_type = BlockBasedTableOptions::kTwoLevelIndexSearch;
options.prefix_extractor.reset(NewNoopTransform());
break;
}
case kBlockBasedTableWithPartitionedIndexFormat4: {
table_options.format_version = 4;
// Format 4 changes the binary index format. Since partitioned index is a
// super-set of simple indexes, we are also using kTwoLevelIndexSearch to
// test this format.
table_options.index_type = BlockBasedTableOptions::kTwoLevelIndexSearch;
// The top-level index in partition filters are also affected by format 4.
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
table_options.partition_filters = true;
table_options.index_block_restart_interval = 8;
break;
}
case kBlockBasedTableWithIndexRestartInterval: {
table_options.index_block_restart_interval = 8;
break;
}
case kOptimizeFiltersForHits: {
options.optimize_filters_for_hits = true;
set_block_based_table_factory = true;
break;
}
case kRowCache: {
options.row_cache = NewLRUCache(1024 * 1024);
break;
}
case kRecycleLogFiles: {
options.recycle_log_file_num = 2;
break;
}
case kLevelSubcompactions: {
options.max_subcompactions = 4;
break;
}
case kUniversalSubcompactions: {
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 8;
options.max_subcompactions = 4;
break;
}
case kConcurrentSkipList: {
options.allow_concurrent_memtable_write = true;
options.enable_write_thread_adaptive_yield = true;
break;
}
case kPipelinedWrite: {
options.enable_pipelined_write = true;
break;
}
case kConcurrentWALWrites: {
// This options optimize 2PC commit path
options.two_write_queues = true;
options.manual_wal_flush = true;
break;
}
case kUnorderedWrite: {
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
}
default:
break;
}
if (options_override.filter_policy) {
table_options.filter_policy = options_override.filter_policy;
table_options.partition_filters = options_override.partition_filters;
table_options.metadata_block_size = options_override.metadata_block_size;
}
if (set_block_based_table_factory) {
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
}
options.env = env_;
options.create_if_missing = true;
options.fail_if_options_file_error = true;
return options;
}
void DBTestBase::CreateColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ColumnFamilyOptions cf_opts(options);
size_t cfi = handles_.size();
handles_.resize(cfi + cfs.size());
for (auto cf : cfs) {
Status s = db_->CreateColumnFamily(cf_opts, cf, &handles_[cfi++]);
ASSERT_OK(s);
}
}
void DBTestBase::CreateAndReopenWithCF(const std::vector<std::string>& cfs,
const Options& options) {
CreateColumnFamilies(cfs, options);
std::vector<std::string> cfs_plus_default = cfs;
cfs_plus_default.insert(cfs_plus_default.begin(), kDefaultColumnFamilyName);
ReopenWithColumnFamilies(cfs_plus_default, options);
}
void DBTestBase::ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const std::vector<Options>& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
void DBTestBase::ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
void DBTestBase::SetTimeElapseOnlySleepOnReopen(DBOptions* options) {
time_elapse_only_sleep_on_reopen_ = true;
// Need to disable stats dumping and persisting which also use
// RepeatableThread, which uses InstrumentedCondVar::TimedWaitInternal.
// With time_elapse_only_sleep_, this can hang on some platforms (MacOS)
// because (a) on some platforms, pthread_cond_timedwait does not appear
// to release the lock for other threads to operate if the deadline time
// is already passed, and (b) TimedWait calls are currently a bad abstraction
// because the deadline parameter is usually computed from Env time,
// but is interpreted in real clock time.
options->stats_dump_period_sec = 0;
options->stats_persist_period_sec = 0;
}
void DBTestBase::MaybeInstallTimeElapseOnlySleep(const DBOptions& options) {
if (time_elapse_only_sleep_on_reopen_) {
assert(options.env == env_ ||
static_cast_with_check<CompositeEnvWrapper>(options.env)
->env_target() == env_);
assert(options.stats_dump_period_sec == 0);
assert(options.stats_persist_period_sec == 0);
// We cannot set these before destroying the last DB because they might
// cause a deadlock or similar without the appropriate options set in
// the DB.
env_->time_elapse_only_sleep_ = true;
env_->no_slowdown_ = true;
} else {
// Going back in same test run is not yet supported, so no
// reset in this case.
}
}
Status DBTestBase::TryReopenWithColumnFamilies(
const std::vector<std::string>& cfs, const std::vector<Options>& options) {
Close();
EXPECT_EQ(cfs.size(), options.size());
std::vector<ColumnFamilyDescriptor> column_families;
for (size_t i = 0; i < cfs.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(cfs[i], options[i]));
}
DBOptions db_opts = DBOptions(options[0]);
last_options_ = options[0];
MaybeInstallTimeElapseOnlySleep(db_opts);
return DB::Open(db_opts, dbname_, column_families, &handles_, &db_);
}
Status DBTestBase::TryReopenWithColumnFamilies(
const std::vector<std::string>& cfs, const Options& options) {
Close();
std::vector<Options> v_opts(cfs.size(), options);
return TryReopenWithColumnFamilies(cfs, v_opts);
}
void DBTestBase::Reopen(const Options& options) {
ASSERT_OK(TryReopen(options));
}
void DBTestBase::Close() {
for (auto h : handles_) {
EXPECT_OK(db_->DestroyColumnFamilyHandle(h));
}
handles_.clear();
delete db_;
db_ = nullptr;
}
void DBTestBase::DestroyAndReopen(const Options& options) {
// Destroy using last options
Destroy(last_options_);
Reopen(options);
}
void DBTestBase::Destroy(const Options& options, bool delete_cf_paths) {
std::vector<ColumnFamilyDescriptor> column_families;
if (delete_cf_paths) {
for (size_t i = 0; i < handles_.size(); ++i) {
ColumnFamilyDescriptor cfdescriptor;
// GetDescriptor is not implemented for ROCKSDB_LITE
handles_[i]->GetDescriptor(&cfdescriptor).PermitUncheckedError();
column_families.push_back(cfdescriptor);
}
}
Close();
ASSERT_OK(DestroyDB(dbname_, options, column_families));
}
Status DBTestBase::ReadOnlyReopen(const Options& options) {
MaybeInstallTimeElapseOnlySleep(options);
return DB::OpenForReadOnly(options, dbname_, &db_);
}
Status DBTestBase::TryReopen(const Options& options) {
Close();
last_options_.table_factory.reset();
// Note: operator= is an unsafe approach here since it destructs
// std::shared_ptr in the same order of their creation, in contrast to
// destructors which destructs them in the opposite order of creation. One
// particular problem is that the cache destructor might invoke callback
// functions that use Option members such as statistics. To work around this
// problem, we manually call destructor of table_factory which eventually
// clears the block cache.
last_options_ = options;
MaybeInstallTimeElapseOnlySleep(options);
return DB::Open(options, dbname_, &db_);
}
bool DBTestBase::IsDirectIOSupported() {
return test::IsDirectIOSupported(env_, dbname_);
}
bool DBTestBase::IsMemoryMappedAccessSupported() const {
return (!encrypted_env_);
}
Status DBTestBase::Flush(int cf) {
if (cf == 0) {
return db_->Flush(FlushOptions());
} else {
return db_->Flush(FlushOptions(), handles_[cf]);
}
}
Status DBTestBase::Flush(const std::vector<int>& cf_ids) {
std::vector<ColumnFamilyHandle*> cfhs;
std::for_each(cf_ids.begin(), cf_ids.end(),
[&cfhs, this](int id) { cfhs.emplace_back(handles_[id]); });
return db_->Flush(FlushOptions(), cfhs);
}
Status DBTestBase::Put(const Slice& k, const Slice& v, WriteOptions wo) {
if (kMergePut == option_config_) {
return db_->Merge(wo, k, v);
} else {
return db_->Put(wo, k, v);
}
}
Status DBTestBase::Put(int cf, const Slice& k, const Slice& v,
WriteOptions wo) {
if (kMergePut == option_config_) {
return db_->Merge(wo, handles_[cf], k, v);
} else {
return db_->Put(wo, handles_[cf], k, v);
}
}
Status DBTestBase::Merge(const Slice& k, const Slice& v, WriteOptions wo) {
return db_->Merge(wo, k, v);
}
Status DBTestBase::Merge(int cf, const Slice& k, const Slice& v,
WriteOptions wo) {
return db_->Merge(wo, handles_[cf], k, v);
}
Status DBTestBase::Delete(const std::string& k) {
return db_->Delete(WriteOptions(), k);
}
Status DBTestBase::Delete(int cf, const std::string& k) {
return db_->Delete(WriteOptions(), handles_[cf], k);
}
Status DBTestBase::SingleDelete(const std::string& k) {
return db_->SingleDelete(WriteOptions(), k);
}
Status DBTestBase::SingleDelete(int cf, const std::string& k) {
return db_->SingleDelete(WriteOptions(), handles_[cf], k);
}
bool DBTestBase::SetPreserveDeletesSequenceNumber(SequenceNumber sn) {
return db_->SetPreserveDeletesSequenceNumber(sn);
}
std::string DBTestBase::Get(const std::string& k, const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
std::string DBTestBase::Get(int cf, const std::string& k,
const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, handles_[cf], k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
std::vector<std::string> DBTestBase::MultiGet(std::vector<int> cfs,
const std::vector<std::string>& k,
const Snapshot* snapshot,
const bool batched) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::vector<ColumnFamilyHandle*> handles;
std::vector<Slice> keys;
std::vector<std::string> result;
for (unsigned int i = 0; i < cfs.size(); ++i) {
handles.push_back(handles_[cfs[i]]);
keys.push_back(k[i]);
}
std::vector<Status> s;
if (!batched) {
s = db_->MultiGet(options, handles, keys, &result);
for (unsigned int i = 0; i < s.size(); ++i) {
if (s[i].IsNotFound()) {
result[i] = "NOT_FOUND";
} else if (!s[i].ok()) {
result[i] = s[i].ToString();
}
}
} else {
std::vector<PinnableSlice> pin_values(cfs.size());
result.resize(cfs.size());
s.resize(cfs.size());
db_->MultiGet(options, cfs.size(), handles.data(), keys.data(),
pin_values.data(), s.data());
for (unsigned int i = 0; i < s.size(); ++i) {
if (s[i].IsNotFound()) {
result[i] = "NOT_FOUND";
} else if (!s[i].ok()) {
result[i] = s[i].ToString();
} else {
result[i].assign(pin_values[i].data(), pin_values[i].size());
}
}
}
return result;
}
std::vector<std::string> DBTestBase::MultiGet(const std::vector<std::string>& k,
const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::vector<Slice> keys;
std::vector<std::string> result;
std::vector<Status> statuses(k.size());
std::vector<PinnableSlice> pin_values(k.size());
for (unsigned int i = 0; i < k.size(); ++i) {
keys.push_back(k[i]);
}
db_->MultiGet(options, dbfull()->DefaultColumnFamily(), keys.size(),
keys.data(), pin_values.data(), statuses.data());
result.resize(k.size());
for (auto iter = result.begin(); iter != result.end(); ++iter) {
iter->assign(pin_values[iter - result.begin()].data(),
pin_values[iter - result.begin()].size());
}
for (unsigned int i = 0; i < statuses.size(); ++i) {
if (statuses[i].IsNotFound()) {
result[i] = "NOT_FOUND";
}
}
return result;
}
Status DBTestBase::Get(const std::string& k, PinnableSlice* v) {
ReadOptions options;
options.verify_checksums = true;
Status s = dbfull()->Get(options, dbfull()->DefaultColumnFamily(), k, v);
return s;
}
uint64_t DBTestBase::GetNumSnapshots() {
uint64_t int_num;
EXPECT_TRUE(dbfull()->GetIntProperty("rocksdb.num-snapshots", &int_num));
return int_num;
}
uint64_t DBTestBase::GetTimeOldestSnapshots() {
uint64_t int_num;
EXPECT_TRUE(
dbfull()->GetIntProperty("rocksdb.oldest-snapshot-time", &int_num));
return int_num;
}
uint64_t DBTestBase::GetSequenceOldestSnapshots() {
uint64_t int_num;
EXPECT_TRUE(
dbfull()->GetIntProperty("rocksdb.oldest-snapshot-sequence", &int_num));
return int_num;
}
// Return a string that contains all key,value pairs in order,
// formatted like "(k1->v1)(k2->v2)".
std::string DBTestBase::Contents(int cf) {
std::vector<std::string> forward;
std::string result;
Iterator* iter = (cf == 0) ? db_->NewIterator(ReadOptions())
: db_->NewIterator(ReadOptions(), handles_[cf]);
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
std::string s = IterStatus(iter);
result.push_back('(');
result.append(s);
result.push_back(')');
forward.push_back(s);
}
// Check reverse iteration results are the reverse of forward results
unsigned int matched = 0;
for (iter->SeekToLast(); iter->Valid(); iter->Prev()) {
EXPECT_LT(matched, forward.size());
EXPECT_EQ(IterStatus(iter), forward[forward.size() - matched - 1]);
matched++;
}
EXPECT_EQ(matched, forward.size());
delete iter;
return result;
}
std::string DBTestBase::AllEntriesFor(const Slice& user_key, int cf) {
Arena arena;
auto options = CurrentOptions();
InternalKeyComparator icmp(options.comparator);
ReadRangeDelAggregator range_del_agg(&icmp,
kMaxSequenceNumber /* upper_bound */);
ReadOptions read_options;
ScopedArenaIterator iter;
if (cf == 0) {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber));
} else {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber, handles_[cf]));
}
InternalKey target(user_key, kMaxSequenceNumber, kTypeValue);
iter->Seek(target.Encode());
std::string result;
if (!iter->status().ok()) {
result = iter->status().ToString();
} else {
result = "[ ";
bool first = true;
while (iter->Valid()) {
ParsedInternalKey ikey(Slice(), 0, kTypeValue);
if (ParseInternalKey(iter->key(), &ikey, true /* log_err_key */) !=
Status::OK()) {
result += "CORRUPTED";
} else {
if (!last_options_.comparator->Equal(ikey.user_key, user_key)) {
break;
}
if (!first) {
result += ", ";
}
first = false;
switch (ikey.type) {
case kTypeValue:
result += iter->value().ToString();
break;
case kTypeMerge:
// keep it the same as kTypeValue for testing kMergePut
result += iter->value().ToString();
break;
case kTypeDeletion:
result += "DEL";
break;
case kTypeSingleDeletion:
result += "SDEL";
break;
default:
assert(false);
break;
}
}
iter->Next();