fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
548 lines
19 KiB
548 lines
19 KiB
// 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 "test_util/testutil.h"
|
|
|
|
#include <fcntl.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <array>
|
|
#include <cctype>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
|
|
#include "db/memtable_list.h"
|
|
#include "env/composite_env_wrapper.h"
|
|
#include "file/random_access_file_reader.h"
|
|
#include "file/sequence_file_reader.h"
|
|
#include "file/writable_file_writer.h"
|
|
#include "port/port.h"
|
|
#include "rocksdb/convenience.h"
|
|
#include "test_util/sync_point.h"
|
|
#include "util/random.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
namespace test {
|
|
|
|
const uint32_t kDefaultFormatVersion = BlockBasedTableOptions().format_version;
|
|
const uint32_t kLatestFormatVersion = 5u;
|
|
|
|
std::string RandomKey(Random* rnd, int len, RandomKeyType type) {
|
|
// Make sure to generate a wide variety of characters so we
|
|
// test the boundary conditions for short-key optimizations.
|
|
static const char kTestChars[] = {'\0', '\1', 'a', 'b', 'c',
|
|
'd', 'e', '\xfd', '\xfe', '\xff'};
|
|
std::string result;
|
|
for (int i = 0; i < len; i++) {
|
|
std::size_t indx = 0;
|
|
switch (type) {
|
|
case RandomKeyType::RANDOM:
|
|
indx = rnd->Uniform(sizeof(kTestChars));
|
|
break;
|
|
case RandomKeyType::LARGEST:
|
|
indx = sizeof(kTestChars) - 1;
|
|
break;
|
|
case RandomKeyType::MIDDLE:
|
|
indx = sizeof(kTestChars) / 2;
|
|
break;
|
|
case RandomKeyType::SMALLEST:
|
|
indx = 0;
|
|
break;
|
|
}
|
|
result += kTestChars[indx];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
extern Slice CompressibleString(Random* rnd, double compressed_fraction,
|
|
int len, std::string* dst) {
|
|
int raw = static_cast<int>(len * compressed_fraction);
|
|
if (raw < 1) raw = 1;
|
|
std::string raw_data = rnd->RandomString(raw);
|
|
|
|
// Duplicate the random data until we have filled "len" bytes
|
|
dst->clear();
|
|
while (dst->size() < (unsigned int)len) {
|
|
dst->append(raw_data);
|
|
}
|
|
dst->resize(len);
|
|
return Slice(*dst);
|
|
}
|
|
|
|
namespace {
|
|
class Uint64ComparatorImpl : public Comparator {
|
|
public:
|
|
Uint64ComparatorImpl() {}
|
|
|
|
const char* Name() const override { return "rocksdb.Uint64Comparator"; }
|
|
|
|
int Compare(const Slice& a, const Slice& b) const override {
|
|
assert(a.size() == sizeof(uint64_t) && b.size() == sizeof(uint64_t));
|
|
const uint64_t* left = reinterpret_cast<const uint64_t*>(a.data());
|
|
const uint64_t* right = reinterpret_cast<const uint64_t*>(b.data());
|
|
uint64_t leftValue;
|
|
uint64_t rightValue;
|
|
GetUnaligned(left, &leftValue);
|
|
GetUnaligned(right, &rightValue);
|
|
if (leftValue == rightValue) {
|
|
return 0;
|
|
} else if (leftValue < rightValue) {
|
|
return -1;
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
void FindShortestSeparator(std::string* /*start*/,
|
|
const Slice& /*limit*/) const override {
|
|
return;
|
|
}
|
|
|
|
void FindShortSuccessor(std::string* /*key*/) const override { return; }
|
|
};
|
|
|
|
// A test implementation of comparator with 64-bit integer timestamp.
|
|
class ComparatorWithU64TsImpl : public Comparator {
|
|
public:
|
|
ComparatorWithU64TsImpl()
|
|
: Comparator(/*ts_sz=*/sizeof(uint64_t)),
|
|
cmp_without_ts_(BytewiseComparator()) {
|
|
assert(cmp_without_ts_);
|
|
assert(cmp_without_ts_->timestamp_size() == 0);
|
|
}
|
|
const char* Name() const override { return "ComparatorWithU64Ts"; }
|
|
void FindShortSuccessor(std::string*) const override {}
|
|
void FindShortestSeparator(std::string*, const Slice&) const override {}
|
|
int Compare(const Slice& a, const Slice& b) const override {
|
|
int ret = CompareWithoutTimestamp(a, b);
|
|
size_t ts_sz = timestamp_size();
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
// Compare timestamp.
|
|
// For the same user key with different timestamps, larger (newer) timestamp
|
|
// comes first.
|
|
return -CompareTimestamp(ExtractTimestampFromUserKey(a, ts_sz),
|
|
ExtractTimestampFromUserKey(b, ts_sz));
|
|
}
|
|
using Comparator::CompareWithoutTimestamp;
|
|
int CompareWithoutTimestamp(const Slice& a, bool a_has_ts, const Slice& b,
|
|
bool b_has_ts) const override {
|
|
const size_t ts_sz = timestamp_size();
|
|
assert(!a_has_ts || a.size() >= ts_sz);
|
|
assert(!b_has_ts || b.size() >= ts_sz);
|
|
Slice lhs = a_has_ts ? StripTimestampFromUserKey(a, ts_sz) : a;
|
|
Slice rhs = b_has_ts ? StripTimestampFromUserKey(b, ts_sz) : b;
|
|
return cmp_without_ts_->Compare(lhs, rhs);
|
|
}
|
|
int CompareTimestamp(const Slice& ts1, const Slice& ts2) const override {
|
|
assert(ts1.size() == sizeof(uint64_t));
|
|
assert(ts2.size() == sizeof(uint64_t));
|
|
uint64_t lhs = DecodeFixed64(ts1.data());
|
|
uint64_t rhs = DecodeFixed64(ts2.data());
|
|
if (lhs < rhs) {
|
|
return -1;
|
|
} else if (lhs > rhs) {
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
private:
|
|
const Comparator* cmp_without_ts_{nullptr};
|
|
};
|
|
|
|
} // namespace
|
|
|
|
const Comparator* Uint64Comparator() {
|
|
static Uint64ComparatorImpl uint64comp;
|
|
return &uint64comp;
|
|
}
|
|
|
|
const Comparator* ComparatorWithU64Ts() {
|
|
static ComparatorWithU64TsImpl comp_with_u64_ts;
|
|
return &comp_with_u64_ts;
|
|
}
|
|
|
|
WritableFileWriter* GetWritableFileWriter(WritableFile* wf,
|
|
const std::string& fname) {
|
|
std::unique_ptr<WritableFile> file(wf);
|
|
return new WritableFileWriter(NewLegacyWritableFileWrapper(std::move(file)),
|
|
fname, EnvOptions());
|
|
}
|
|
|
|
RandomAccessFileReader* GetRandomAccessFileReader(RandomAccessFile* raf) {
|
|
std::unique_ptr<RandomAccessFile> file(raf);
|
|
return new RandomAccessFileReader(NewLegacyRandomAccessFileWrapper(file),
|
|
"[test RandomAccessFileReader]");
|
|
}
|
|
|
|
SequentialFileReader* GetSequentialFileReader(SequentialFile* se,
|
|
const std::string& fname) {
|
|
std::unique_ptr<SequentialFile> file(se);
|
|
return new SequentialFileReader(NewLegacySequentialFileWrapper(file), fname);
|
|
}
|
|
|
|
void CorruptKeyType(InternalKey* ikey) {
|
|
std::string keystr = ikey->Encode().ToString();
|
|
keystr[keystr.size() - 8] = kTypeLogData;
|
|
ikey->DecodeFrom(Slice(keystr.data(), keystr.size()));
|
|
}
|
|
|
|
std::string KeyStr(const std::string& user_key, const SequenceNumber& seq,
|
|
const ValueType& t, bool corrupt) {
|
|
InternalKey k(user_key, seq, t);
|
|
if (corrupt) {
|
|
CorruptKeyType(&k);
|
|
}
|
|
return k.Encode().ToString();
|
|
}
|
|
|
|
std::string KeyStr(uint64_t ts, const std::string& user_key,
|
|
const SequenceNumber& seq, const ValueType& t,
|
|
bool corrupt) {
|
|
std::string user_key_with_ts(user_key);
|
|
std::string ts_str;
|
|
PutFixed64(&ts_str, ts);
|
|
user_key_with_ts.append(ts_str);
|
|
return KeyStr(user_key_with_ts, seq, t, corrupt);
|
|
}
|
|
|
|
std::string RandomName(Random* rnd, const size_t len) {
|
|
std::stringstream ss;
|
|
for (size_t i = 0; i < len; ++i) {
|
|
ss << static_cast<char>(rnd->Uniform(26) + 'a');
|
|
}
|
|
return ss.str();
|
|
}
|
|
|
|
CompressionType RandomCompressionType(Random* rnd) {
|
|
auto ret = static_cast<CompressionType>(rnd->Uniform(6));
|
|
while (!CompressionTypeSupported(ret)) {
|
|
ret = static_cast<CompressionType>((static_cast<int>(ret) + 1) % 6);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void RandomCompressionTypeVector(const size_t count,
|
|
std::vector<CompressionType>* types,
|
|
Random* rnd) {
|
|
types->clear();
|
|
for (size_t i = 0; i < count; ++i) {
|
|
types->emplace_back(RandomCompressionType(rnd));
|
|
}
|
|
}
|
|
|
|
const SliceTransform* RandomSliceTransform(Random* rnd, int pre_defined) {
|
|
int random_num = pre_defined >= 0 ? pre_defined : rnd->Uniform(4);
|
|
switch (random_num) {
|
|
case 0:
|
|
return NewFixedPrefixTransform(rnd->Uniform(20) + 1);
|
|
case 1:
|
|
return NewCappedPrefixTransform(rnd->Uniform(20) + 1);
|
|
case 2:
|
|
return NewNoopTransform();
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
BlockBasedTableOptions RandomBlockBasedTableOptions(Random* rnd) {
|
|
BlockBasedTableOptions opt;
|
|
opt.cache_index_and_filter_blocks = rnd->Uniform(2);
|
|
opt.pin_l0_filter_and_index_blocks_in_cache = rnd->Uniform(2);
|
|
opt.pin_top_level_index_and_filter = rnd->Uniform(2);
|
|
using IndexType = BlockBasedTableOptions::IndexType;
|
|
const std::array<IndexType, 4> index_types = {
|
|
{IndexType::kBinarySearch, IndexType::kHashSearch,
|
|
IndexType::kTwoLevelIndexSearch, IndexType::kBinarySearchWithFirstKey}};
|
|
opt.index_type =
|
|
index_types[rnd->Uniform(static_cast<int>(index_types.size()))];
|
|
opt.hash_index_allow_collision = rnd->Uniform(2);
|
|
opt.checksum = static_cast<ChecksumType>(rnd->Uniform(3));
|
|
opt.block_size = rnd->Uniform(10000000);
|
|
opt.block_size_deviation = rnd->Uniform(100);
|
|
opt.block_restart_interval = rnd->Uniform(100);
|
|
opt.index_block_restart_interval = rnd->Uniform(100);
|
|
opt.whole_key_filtering = rnd->Uniform(2);
|
|
|
|
return opt;
|
|
}
|
|
|
|
TableFactory* RandomTableFactory(Random* rnd, int pre_defined) {
|
|
#ifndef ROCKSDB_LITE
|
|
int random_num = pre_defined >= 0 ? pre_defined : rnd->Uniform(4);
|
|
switch (random_num) {
|
|
case 0:
|
|
return NewPlainTableFactory();
|
|
case 1:
|
|
return NewCuckooTableFactory();
|
|
default:
|
|
return NewBlockBasedTableFactory();
|
|
}
|
|
#else
|
|
(void)rnd;
|
|
(void)pre_defined;
|
|
return NewBlockBasedTableFactory();
|
|
#endif // !ROCKSDB_LITE
|
|
}
|
|
|
|
MergeOperator* RandomMergeOperator(Random* rnd) {
|
|
return new ChanglingMergeOperator(RandomName(rnd, 10));
|
|
}
|
|
|
|
CompactionFilter* RandomCompactionFilter(Random* rnd) {
|
|
return new ChanglingCompactionFilter(RandomName(rnd, 10));
|
|
}
|
|
|
|
CompactionFilterFactory* RandomCompactionFilterFactory(Random* rnd) {
|
|
return new ChanglingCompactionFilterFactory(RandomName(rnd, 10));
|
|
}
|
|
|
|
void RandomInitDBOptions(DBOptions* db_opt, Random* rnd) {
|
|
// boolean options
|
|
db_opt->advise_random_on_open = rnd->Uniform(2);
|
|
db_opt->allow_mmap_reads = rnd->Uniform(2);
|
|
db_opt->allow_mmap_writes = rnd->Uniform(2);
|
|
db_opt->use_direct_reads = rnd->Uniform(2);
|
|
db_opt->use_direct_io_for_flush_and_compaction = rnd->Uniform(2);
|
|
db_opt->create_if_missing = rnd->Uniform(2);
|
|
db_opt->create_missing_column_families = rnd->Uniform(2);
|
|
db_opt->enable_thread_tracking = rnd->Uniform(2);
|
|
db_opt->error_if_exists = rnd->Uniform(2);
|
|
db_opt->is_fd_close_on_exec = rnd->Uniform(2);
|
|
db_opt->paranoid_checks = rnd->Uniform(2);
|
|
db_opt->track_and_verify_wals_in_manifest = rnd->Uniform(2);
|
|
db_opt->skip_log_error_on_recovery = rnd->Uniform(2);
|
|
db_opt->skip_stats_update_on_db_open = rnd->Uniform(2);
|
|
db_opt->skip_checking_sst_file_sizes_on_db_open = rnd->Uniform(2);
|
|
db_opt->use_adaptive_mutex = rnd->Uniform(2);
|
|
db_opt->use_fsync = rnd->Uniform(2);
|
|
db_opt->recycle_log_file_num = rnd->Uniform(2);
|
|
db_opt->avoid_flush_during_recovery = rnd->Uniform(2);
|
|
db_opt->avoid_flush_during_shutdown = rnd->Uniform(2);
|
|
|
|
// int options
|
|
db_opt->max_background_compactions = rnd->Uniform(100);
|
|
db_opt->max_background_flushes = rnd->Uniform(100);
|
|
db_opt->max_file_opening_threads = rnd->Uniform(100);
|
|
db_opt->max_open_files = rnd->Uniform(100);
|
|
db_opt->table_cache_numshardbits = rnd->Uniform(100);
|
|
|
|
// size_t options
|
|
db_opt->db_write_buffer_size = rnd->Uniform(10000);
|
|
db_opt->keep_log_file_num = rnd->Uniform(10000);
|
|
db_opt->log_file_time_to_roll = rnd->Uniform(10000);
|
|
db_opt->manifest_preallocation_size = rnd->Uniform(10000);
|
|
db_opt->max_log_file_size = rnd->Uniform(10000);
|
|
|
|
// std::string options
|
|
db_opt->db_log_dir = "path/to/db_log_dir";
|
|
db_opt->wal_dir = "path/to/wal_dir";
|
|
|
|
// uint32_t options
|
|
db_opt->max_subcompactions = rnd->Uniform(100000);
|
|
|
|
// uint64_t options
|
|
static const uint64_t uint_max = static_cast<uint64_t>(UINT_MAX);
|
|
db_opt->WAL_size_limit_MB = uint_max + rnd->Uniform(100000);
|
|
db_opt->WAL_ttl_seconds = uint_max + rnd->Uniform(100000);
|
|
db_opt->bytes_per_sync = uint_max + rnd->Uniform(100000);
|
|
db_opt->delayed_write_rate = uint_max + rnd->Uniform(100000);
|
|
db_opt->delete_obsolete_files_period_micros = uint_max + rnd->Uniform(100000);
|
|
db_opt->max_manifest_file_size = uint_max + rnd->Uniform(100000);
|
|
db_opt->max_total_wal_size = uint_max + rnd->Uniform(100000);
|
|
db_opt->wal_bytes_per_sync = uint_max + rnd->Uniform(100000);
|
|
|
|
// unsigned int options
|
|
db_opt->stats_dump_period_sec = rnd->Uniform(100000);
|
|
}
|
|
|
|
void RandomInitCFOptions(ColumnFamilyOptions* cf_opt, DBOptions& db_options,
|
|
Random* rnd) {
|
|
cf_opt->compaction_style = (CompactionStyle)(rnd->Uniform(4));
|
|
|
|
// boolean options
|
|
cf_opt->report_bg_io_stats = rnd->Uniform(2);
|
|
cf_opt->disable_auto_compactions = rnd->Uniform(2);
|
|
cf_opt->inplace_update_support = rnd->Uniform(2);
|
|
cf_opt->level_compaction_dynamic_level_bytes = rnd->Uniform(2);
|
|
cf_opt->optimize_filters_for_hits = rnd->Uniform(2);
|
|
cf_opt->paranoid_file_checks = rnd->Uniform(2);
|
|
cf_opt->purge_redundant_kvs_while_flush = rnd->Uniform(2);
|
|
cf_opt->force_consistency_checks = rnd->Uniform(2);
|
|
cf_opt->compaction_options_fifo.allow_compaction = rnd->Uniform(2);
|
|
cf_opt->memtable_whole_key_filtering = rnd->Uniform(2);
|
|
cf_opt->enable_blob_files = rnd->Uniform(2);
|
|
|
|
// double options
|
|
cf_opt->hard_rate_limit = static_cast<double>(rnd->Uniform(10000)) / 13;
|
|
cf_opt->soft_rate_limit = static_cast<double>(rnd->Uniform(10000)) / 13;
|
|
cf_opt->memtable_prefix_bloom_size_ratio =
|
|
static_cast<double>(rnd->Uniform(10000)) / 20000.0;
|
|
|
|
// int options
|
|
cf_opt->level0_file_num_compaction_trigger = rnd->Uniform(100);
|
|
cf_opt->level0_slowdown_writes_trigger = rnd->Uniform(100);
|
|
cf_opt->level0_stop_writes_trigger = rnd->Uniform(100);
|
|
cf_opt->max_bytes_for_level_multiplier = rnd->Uniform(100);
|
|
cf_opt->max_mem_compaction_level = rnd->Uniform(100);
|
|
cf_opt->max_write_buffer_number = rnd->Uniform(100);
|
|
cf_opt->max_write_buffer_number_to_maintain = rnd->Uniform(100);
|
|
cf_opt->max_write_buffer_size_to_maintain = rnd->Uniform(10000);
|
|
cf_opt->min_write_buffer_number_to_merge = rnd->Uniform(100);
|
|
cf_opt->num_levels = rnd->Uniform(100);
|
|
cf_opt->target_file_size_multiplier = rnd->Uniform(100);
|
|
|
|
// vector int options
|
|
cf_opt->max_bytes_for_level_multiplier_additional.resize(cf_opt->num_levels);
|
|
for (int i = 0; i < cf_opt->num_levels; i++) {
|
|
cf_opt->max_bytes_for_level_multiplier_additional[i] = rnd->Uniform(100);
|
|
}
|
|
|
|
// size_t options
|
|
cf_opt->arena_block_size = rnd->Uniform(10000);
|
|
cf_opt->inplace_update_num_locks = rnd->Uniform(10000);
|
|
cf_opt->max_successive_merges = rnd->Uniform(10000);
|
|
cf_opt->memtable_huge_page_size = rnd->Uniform(10000);
|
|
cf_opt->write_buffer_size = rnd->Uniform(10000);
|
|
|
|
// uint32_t options
|
|
cf_opt->bloom_locality = rnd->Uniform(10000);
|
|
cf_opt->max_bytes_for_level_base = rnd->Uniform(10000);
|
|
|
|
// uint64_t options
|
|
static const uint64_t uint_max = static_cast<uint64_t>(UINT_MAX);
|
|
cf_opt->ttl =
|
|
db_options.max_open_files == -1 ? uint_max + rnd->Uniform(10000) : 0;
|
|
cf_opt->periodic_compaction_seconds =
|
|
db_options.max_open_files == -1 ? uint_max + rnd->Uniform(10000) : 0;
|
|
cf_opt->max_sequential_skip_in_iterations = uint_max + rnd->Uniform(10000);
|
|
cf_opt->target_file_size_base = uint_max + rnd->Uniform(10000);
|
|
cf_opt->max_compaction_bytes =
|
|
cf_opt->target_file_size_base * rnd->Uniform(100);
|
|
cf_opt->compaction_options_fifo.max_table_files_size =
|
|
uint_max + rnd->Uniform(10000);
|
|
cf_opt->min_blob_size = uint_max + rnd->Uniform(10000);
|
|
cf_opt->blob_file_size = uint_max + rnd->Uniform(10000);
|
|
|
|
// unsigned int options
|
|
cf_opt->rate_limit_delay_max_milliseconds = rnd->Uniform(10000);
|
|
|
|
// pointer typed options
|
|
cf_opt->prefix_extractor.reset(RandomSliceTransform(rnd));
|
|
cf_opt->table_factory.reset(RandomTableFactory(rnd));
|
|
cf_opt->merge_operator.reset(RandomMergeOperator(rnd));
|
|
if (cf_opt->compaction_filter) {
|
|
delete cf_opt->compaction_filter;
|
|
}
|
|
cf_opt->compaction_filter = RandomCompactionFilter(rnd);
|
|
cf_opt->compaction_filter_factory.reset(RandomCompactionFilterFactory(rnd));
|
|
|
|
// custom typed options
|
|
cf_opt->compression = RandomCompressionType(rnd);
|
|
RandomCompressionTypeVector(cf_opt->num_levels,
|
|
&cf_opt->compression_per_level, rnd);
|
|
cf_opt->blob_compression_type = RandomCompressionType(rnd);
|
|
}
|
|
|
|
bool IsDirectIOSupported(Env* env, const std::string& dir) {
|
|
EnvOptions env_options;
|
|
env_options.use_mmap_writes = false;
|
|
env_options.use_direct_writes = true;
|
|
std::string tmp = TempFileName(dir, 999);
|
|
Status s;
|
|
{
|
|
std::unique_ptr<WritableFile> file;
|
|
s = env->NewWritableFile(tmp, &file, env_options);
|
|
}
|
|
if (s.ok()) {
|
|
s = env->DeleteFile(tmp);
|
|
}
|
|
return s.ok();
|
|
}
|
|
|
|
size_t GetLinesCount(const std::string& fname, const std::string& pattern) {
|
|
std::stringstream ssbuf;
|
|
std::string line;
|
|
size_t count = 0;
|
|
|
|
std::ifstream inFile(fname.c_str());
|
|
ssbuf << inFile.rdbuf();
|
|
|
|
while (getline(ssbuf, line)) {
|
|
if (line.find(pattern) != std::string::npos) {
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
Status CorruptFile(Env* env, const std::string& fname, int offset,
|
|
int bytes_to_corrupt, bool verify_checksum /*=true*/) {
|
|
uint64_t size;
|
|
Status s = env->GetFileSize(fname, &size);
|
|
if (!s.ok()) {
|
|
return s;
|
|
} else if (offset < 0) {
|
|
// Relative to end of file; make it absolute
|
|
if (-offset > static_cast<int>(size)) {
|
|
offset = 0;
|
|
} else {
|
|
offset = static_cast<int>(size + offset);
|
|
}
|
|
}
|
|
if (offset > static_cast<int>(size)) {
|
|
offset = static_cast<int>(size);
|
|
}
|
|
if (offset + bytes_to_corrupt > static_cast<int>(size)) {
|
|
bytes_to_corrupt = static_cast<int>(size - offset);
|
|
}
|
|
|
|
// Do it
|
|
std::string contents;
|
|
s = ReadFileToString(env, fname, &contents);
|
|
if (s.ok()) {
|
|
for (int i = 0; i < bytes_to_corrupt; i++) {
|
|
contents[i + offset] ^= 0x80;
|
|
}
|
|
s = WriteStringToFile(env, contents, fname);
|
|
}
|
|
if (s.ok() && verify_checksum) {
|
|
#ifndef ROCKSDB_LITE
|
|
Options options;
|
|
options.env = env;
|
|
EnvOptions env_options;
|
|
Status v = VerifySstFileChecksum(options, env_options, fname);
|
|
assert(!v.ok());
|
|
#endif
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status TruncateFile(Env* env, const std::string& fname, uint64_t new_length) {
|
|
uint64_t old_length;
|
|
Status s = env->GetFileSize(fname, &old_length);
|
|
if (!s.ok() || new_length == old_length) {
|
|
return s;
|
|
}
|
|
// Do it
|
|
std::string contents;
|
|
s = ReadFileToString(env, fname, &contents);
|
|
if (s.ok()) {
|
|
contents.resize(static_cast<size_t>(new_length), 'b');
|
|
s = WriteStringToFile(env, contents, fname);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
} // namespace test
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|