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diff --git a/src/rocksdb/env/mock_env.cc b/src/rocksdb/env/mock_env.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 "env/mock_env.h"
+#include <algorithm>
+#include <chrono>
+#include "port/sys_time.h"
+#include "util/cast_util.h"
+#include "util/murmurhash.h"
+#include "util/random.h"
+#include "util/rate_limiter.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+class MemFile {
+ public:
+ explicit MemFile(Env* env, const std::string& fn, bool _is_lock_file = false)
+ : env_(env),
+ fn_(fn),
+ refs_(0),
+ is_lock_file_(_is_lock_file),
+ locked_(false),
+ size_(0),
+ modified_time_(Now()),
+ rnd_(static_cast<uint32_t>(
+ MurmurHash(fn.data(), static_cast<int>(fn.size()), 0))),
+ fsynced_bytes_(0) {}
+ // No copying allowed.
+ MemFile(const MemFile&) = delete;
+ void operator=(const MemFile&) = delete;
+
+ void Ref() {
+ MutexLock lock(&mutex_);
+ ++refs_;
+ }
+
+ bool is_lock_file() const { return is_lock_file_; }
+
+ bool Lock() {
+ assert(is_lock_file_);
+ MutexLock lock(&mutex_);
+ if (locked_) {
+ return false;
+ } else {
+ locked_ = true;
+ return true;
+ }
+ }
+
+ void Unlock() {
+ assert(is_lock_file_);
+ MutexLock lock(&mutex_);
+ locked_ = false;
+ }
+
+ void Unref() {
+ bool do_delete = false;
+ {
+ MutexLock lock(&mutex_);
+ --refs_;
+ assert(refs_ >= 0);
+ if (refs_ <= 0) {
+ do_delete = true;
+ }
+ }
+
+ if (do_delete) {
+ delete this;
+ }
+ }
+
+ uint64_t Size() const { return size_; }
+
+ void Truncate(size_t size) {
+ MutexLock lock(&mutex_);
+ if (size < size_) {
+ data_.resize(size);
+ size_ = size;
+ }
+ }
+
+ void CorruptBuffer() {
+ if (fsynced_bytes_ >= size_) {
+ return;
+ }
+ uint64_t buffered_bytes = size_ - fsynced_bytes_;
+ uint64_t start =
+ fsynced_bytes_ + rnd_.Uniform(static_cast<int>(buffered_bytes));
+ uint64_t end = std::min(start + 512, size_.load());
+ MutexLock lock(&mutex_);
+ for (uint64_t pos = start; pos < end; ++pos) {
+ data_[static_cast<size_t>(pos)] = static_cast<char>(rnd_.Uniform(256));
+ }
+ }
+
+ Status Read(uint64_t offset, size_t n, Slice* result, char* scratch) const {
+ MutexLock lock(&mutex_);
+ const uint64_t available = Size() - std::min(Size(), offset);
+ size_t offset_ = static_cast<size_t>(offset);
+ if (n > available) {
+ n = static_cast<size_t>(available);
+ }
+ if (n == 0) {
+ *result = Slice();
+ return Status::OK();
+ }
+ if (scratch) {
+ memcpy(scratch, &(data_[offset_]), n);
+ *result = Slice(scratch, n);
+ } else {
+ *result = Slice(&(data_[offset_]), n);
+ }
+ return Status::OK();
+ }
+
+ Status Write(uint64_t offset, const Slice& data) {
+ MutexLock lock(&mutex_);
+ size_t offset_ = static_cast<size_t>(offset);
+ if (offset + data.size() > data_.size()) {
+ data_.resize(offset_ + data.size());
+ }
+ data_.replace(offset_, data.size(), data.data(), data.size());
+ size_ = data_.size();
+ modified_time_ = Now();
+ return Status::OK();
+ }
+
+ Status Append(const Slice& data) {
+ MutexLock lock(&mutex_);
+ data_.append(data.data(), data.size());
+ size_ = data_.size();
+ modified_time_ = Now();
+ return Status::OK();
+ }
+
+ Status Fsync() {
+ fsynced_bytes_ = size_.load();
+ return Status::OK();
+ }
+
+ uint64_t ModifiedTime() const { return modified_time_; }
+
+ private:
+ uint64_t Now() {
+ int64_t unix_time = 0;
+ auto s = env_->GetCurrentTime(&unix_time);
+ assert(s.ok());
+ return static_cast<uint64_t>(unix_time);
+ }
+
+ // Private since only Unref() should be used to delete it.
+ ~MemFile() { assert(refs_ == 0); }
+
+ Env* env_;
+ const std::string fn_;
+ mutable port::Mutex mutex_;
+ int refs_;
+ bool is_lock_file_;
+ bool locked_;
+
+ // Data written into this file, all bytes before fsynced_bytes are
+ // persistent.
+ std::string data_;
+ std::atomic<uint64_t> size_;
+ std::atomic<uint64_t> modified_time_;
+
+ Random rnd_;
+ std::atomic<uint64_t> fsynced_bytes_;
+};
+
+namespace {
+
+class MockSequentialFile : public SequentialFile {
+ public:
+ explicit MockSequentialFile(MemFile* file) : file_(file), pos_(0) {
+ file_->Ref();
+ }
+
+ ~MockSequentialFile() override { file_->Unref(); }
+
+ Status Read(size_t n, Slice* result, char* scratch) override {
+ Status s = file_->Read(pos_, n, result, scratch);
+ if (s.ok()) {
+ pos_ += result->size();
+ }
+ return s;
+ }
+
+ Status Skip(uint64_t n) override {
+ if (pos_ > file_->Size()) {
+ return Status::IOError("pos_ > file_->Size()");
+ }
+ const uint64_t available = file_->Size() - pos_;
+ if (n > available) {
+ n = available;
+ }
+ pos_ += static_cast<size_t>(n);
+ return Status::OK();
+ }
+
+ private:
+ MemFile* file_;
+ size_t pos_;
+};
+
+class MockRandomAccessFile : public RandomAccessFile {
+ public:
+ explicit MockRandomAccessFile(MemFile* file) : file_(file) { file_->Ref(); }
+
+ ~MockRandomAccessFile() override { file_->Unref(); }
+
+ Status Read(uint64_t offset, size_t n, Slice* result,
+ char* scratch) const override {
+ return file_->Read(offset, n, result, scratch);
+ }
+
+ private:
+ MemFile* file_;
+};
+
+class MockRandomRWFile : public RandomRWFile {
+ public:
+ explicit MockRandomRWFile(MemFile* file) : file_(file) { file_->Ref(); }
+
+ ~MockRandomRWFile() override { file_->Unref(); }
+
+ Status Write(uint64_t offset, const Slice& data) override {
+ return file_->Write(offset, data);
+ }
+
+ Status Read(uint64_t offset, size_t n, Slice* result,
+ char* scratch) const override {
+ return file_->Read(offset, n, result, scratch);
+ }
+
+ Status Close() override { return file_->Fsync(); }
+
+ Status Flush() override { return Status::OK(); }
+
+ Status Sync() override { return file_->Fsync(); }
+
+ private:
+ MemFile* file_;
+};
+
+class MockWritableFile : public WritableFile {
+ public:
+ MockWritableFile(MemFile* file, RateLimiter* rate_limiter)
+ : file_(file), rate_limiter_(rate_limiter) {
+ file_->Ref();
+ }
+
+ ~MockWritableFile() override { file_->Unref(); }
+
+ Status Append(const Slice& data) override {
+ size_t bytes_written = 0;
+ while (bytes_written < data.size()) {
+ auto bytes = RequestToken(data.size() - bytes_written);
+ Status s = file_->Append(Slice(data.data() + bytes_written, bytes));
+ if (!s.ok()) {
+ return s;
+ }
+ bytes_written += bytes;
+ }
+ return Status::OK();
+ }
+ Status Truncate(uint64_t size) override {
+ file_->Truncate(static_cast<size_t>(size));
+ return Status::OK();
+ }
+ Status Close() override { return file_->Fsync(); }
+
+ Status Flush() override { return Status::OK(); }
+
+ Status Sync() override { return file_->Fsync(); }
+
+ uint64_t GetFileSize() override { return file_->Size(); }
+
+ private:
+ inline size_t RequestToken(size_t bytes) {
+ if (rate_limiter_ && io_priority_ < Env::IO_TOTAL) {
+ bytes = std::min(
+ bytes, static_cast<size_t>(rate_limiter_->GetSingleBurstBytes()));
+ rate_limiter_->Request(bytes, io_priority_);
+ }
+ return bytes;
+ }
+
+ MemFile* file_;
+ RateLimiter* rate_limiter_;
+};
+
+class MockEnvDirectory : public Directory {
+ public:
+ Status Fsync() override { return Status::OK(); }
+};
+
+class MockEnvFileLock : public FileLock {
+ public:
+ explicit MockEnvFileLock(const std::string& fname) : fname_(fname) {}
+
+ std::string FileName() const { return fname_; }
+
+ private:
+ const std::string fname_;
+};
+
+class TestMemLogger : public Logger {
+ private:
+ std::unique_ptr<WritableFile> file_;
+ std::atomic_size_t log_size_;
+ static const uint64_t flush_every_seconds_ = 5;
+ std::atomic_uint_fast64_t last_flush_micros_;
+ Env* env_;
+ std::atomic<bool> flush_pending_;
+
+ public:
+ TestMemLogger(std::unique_ptr<WritableFile> f, Env* env,
+ const InfoLogLevel log_level = InfoLogLevel::ERROR_LEVEL)
+ : Logger(log_level),
+ file_(std::move(f)),
+ log_size_(0),
+ last_flush_micros_(0),
+ env_(env),
+ flush_pending_(false) {}
+ ~TestMemLogger() override {}
+
+ void Flush() override {
+ if (flush_pending_) {
+ flush_pending_ = false;
+ }
+ last_flush_micros_ = env_->NowMicros();
+ }
+
+ using Logger::Logv;
+ void Logv(const char* format, va_list ap) override {
+ // We try twice: the first time with a fixed-size stack allocated buffer,
+ // and the second time with a much larger dynamically allocated buffer.
+ char buffer[500];
+ for (int iter = 0; iter < 2; iter++) {
+ char* base;
+ int bufsize;
+ if (iter == 0) {
+ bufsize = sizeof(buffer);
+ base = buffer;
+ } else {
+ bufsize = 30000;
+ base = new char[bufsize];
+ }
+ char* p = base;
+ char* limit = base + bufsize;
+
+ struct timeval now_tv;
+ gettimeofday(&now_tv, nullptr);
+ const time_t seconds = now_tv.tv_sec;
+ struct tm t;
+ memset(&t, 0, sizeof(t));
+ struct tm* ret __attribute__((__unused__));
+ ret = localtime_r(&seconds, &t);
+ assert(ret);
+ p += snprintf(p, limit - p, "%04d/%02d/%02d-%02d:%02d:%02d.%06d ",
+ t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour,
+ t.tm_min, t.tm_sec, static_cast<int>(now_tv.tv_usec));
+
+ // Print the message
+ if (p < limit) {
+ va_list backup_ap;
+ va_copy(backup_ap, ap);
+ p += vsnprintf(p, limit - p, format, backup_ap);
+ va_end(backup_ap);
+ }
+
+ // Truncate to available space if necessary
+ if (p >= limit) {
+ if (iter == 0) {
+ continue; // Try again with larger buffer
+ } else {
+ p = limit - 1;
+ }
+ }
+
+ // Add newline if necessary
+ if (p == base || p[-1] != '\n') {
+ *p++ = '\n';
+ }
+
+ assert(p <= limit);
+ const size_t write_size = p - base;
+
+ file_->Append(Slice(base, write_size));
+ flush_pending_ = true;
+ log_size_ += write_size;
+ uint64_t now_micros =
+ static_cast<uint64_t>(now_tv.tv_sec) * 1000000 + now_tv.tv_usec;
+ if (now_micros - last_flush_micros_ >= flush_every_seconds_ * 1000000) {
+ flush_pending_ = false;
+ last_flush_micros_ = now_micros;
+ }
+ if (base != buffer) {
+ delete[] base;
+ }
+ break;
+ }
+ }
+ size_t GetLogFileSize() const override { return log_size_; }
+};
+
+} // Anonymous namespace
+
+MockEnv::MockEnv(Env* base_env) : EnvWrapper(base_env), fake_sleep_micros_(0) {}
+
+MockEnv::~MockEnv() {
+ for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end(); ++i) {
+ i->second->Unref();
+ }
+}
+
+// Partial implementation of the Env interface.
+Status MockEnv::NewSequentialFile(const std::string& fname,
+ std::unique_ptr<SequentialFile>* result,
+ const EnvOptions& /*soptions*/) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) == file_map_.end()) {
+ *result = nullptr;
+ return Status::IOError(fn, "File not found");
+ }
+ auto* f = file_map_[fn];
+ if (f->is_lock_file()) {
+ return Status::InvalidArgument(fn, "Cannot open a lock file.");
+ }
+ result->reset(new MockSequentialFile(f));
+ return Status::OK();
+}
+
+Status MockEnv::NewRandomAccessFile(const std::string& fname,
+ std::unique_ptr<RandomAccessFile>* result,
+ const EnvOptions& /*soptions*/) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) == file_map_.end()) {
+ *result = nullptr;
+ return Status::IOError(fn, "File not found");
+ }
+ auto* f = file_map_[fn];
+ if (f->is_lock_file()) {
+ return Status::InvalidArgument(fn, "Cannot open a lock file.");
+ }
+ result->reset(new MockRandomAccessFile(f));
+ return Status::OK();
+}
+
+Status MockEnv::NewRandomRWFile(const std::string& fname,
+ std::unique_ptr<RandomRWFile>* result,
+ const EnvOptions& /*soptions*/) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) == file_map_.end()) {
+ *result = nullptr;
+ return Status::IOError(fn, "File not found");
+ }
+ auto* f = file_map_[fn];
+ if (f->is_lock_file()) {
+ return Status::InvalidArgument(fn, "Cannot open a lock file.");
+ }
+ result->reset(new MockRandomRWFile(f));
+ return Status::OK();
+}
+
+Status MockEnv::ReuseWritableFile(const std::string& fname,
+ const std::string& old_fname,
+ std::unique_ptr<WritableFile>* result,
+ const EnvOptions& options) {
+ auto s = RenameFile(old_fname, fname);
+ if (!s.ok()) {
+ return s;
+ }
+ result->reset();
+ return NewWritableFile(fname, result, options);
+}
+
+Status MockEnv::NewWritableFile(const std::string& fname,
+ std::unique_ptr<WritableFile>* result,
+ const EnvOptions& env_options) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) != file_map_.end()) {
+ DeleteFileInternal(fn);
+ }
+ MemFile* file = new MemFile(this, fn, false);
+ file->Ref();
+ file_map_[fn] = file;
+
+ result->reset(new MockWritableFile(file, env_options.rate_limiter));
+ return Status::OK();
+}
+
+Status MockEnv::NewDirectory(const std::string& /*name*/,
+ std::unique_ptr<Directory>* result) {
+ result->reset(new MockEnvDirectory());
+ return Status::OK();
+}
+
+Status MockEnv::FileExists(const std::string& fname) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) != file_map_.end()) {
+ // File exists
+ return Status::OK();
+ }
+ // Now also check if fn exists as a dir
+ for (const auto& iter : file_map_) {
+ const std::string& filename = iter.first;
+ if (filename.size() >= fn.size() + 1 && filename[fn.size()] == '/' &&
+ Slice(filename).starts_with(Slice(fn))) {
+ return Status::OK();
+ }
+ }
+ return Status::NotFound();
+}
+
+Status MockEnv::GetChildren(const std::string& dir,
+ std::vector<std::string>* result) {
+ auto d = NormalizePath(dir);
+ bool found_dir = false;
+ {
+ MutexLock lock(&mutex_);
+ result->clear();
+ for (const auto& iter : file_map_) {
+ const std::string& filename = iter.first;
+
+ if (filename == d) {
+ found_dir = true;
+ } else if (filename.size() >= d.size() + 1 && filename[d.size()] == '/' &&
+ Slice(filename).starts_with(Slice(d))) {
+ found_dir = true;
+ size_t next_slash = filename.find('/', d.size() + 1);
+ if (next_slash != std::string::npos) {
+ result->push_back(
+ filename.substr(d.size() + 1, next_slash - d.size() - 1));
+ } else {
+ result->push_back(filename.substr(d.size() + 1));
+ }
+ }
+ }
+ }
+ result->erase(std::unique(result->begin(), result->end()), result->end());
+ return found_dir ? Status::OK() : Status::NotFound();
+}
+
+void MockEnv::DeleteFileInternal(const std::string& fname) {
+ assert(fname == NormalizePath(fname));
+ const auto& pair = file_map_.find(fname);
+ if (pair != file_map_.end()) {
+ pair->second->Unref();
+ file_map_.erase(fname);
+ }
+}
+
+Status MockEnv::DeleteFile(const std::string& fname) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) == file_map_.end()) {
+ return Status::IOError(fn, "File not found");
+ }
+
+ DeleteFileInternal(fn);
+ return Status::OK();
+}
+
+Status MockEnv::Truncate(const std::string& fname, size_t size) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ auto iter = file_map_.find(fn);
+ if (iter == file_map_.end()) {
+ return Status::IOError(fn, "File not found");
+ }
+ iter->second->Truncate(size);
+ return Status::OK();
+}
+
+Status MockEnv::CreateDir(const std::string& dirname) {
+ auto dn = NormalizePath(dirname);
+ if (file_map_.find(dn) == file_map_.end()) {
+ MemFile* file = new MemFile(this, dn, false);
+ file->Ref();
+ file_map_[dn] = file;
+ } else {
+ return Status::IOError();
+ }
+ return Status::OK();
+}
+
+Status MockEnv::CreateDirIfMissing(const std::string& dirname) {
+ CreateDir(dirname);
+ return Status::OK();
+}
+
+Status MockEnv::DeleteDir(const std::string& dirname) {
+ return DeleteFile(dirname);
+}
+
+Status MockEnv::GetFileSize(const std::string& fname, uint64_t* file_size) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ auto iter = file_map_.find(fn);
+ if (iter == file_map_.end()) {
+ return Status::IOError(fn, "File not found");
+ }
+
+ *file_size = iter->second->Size();
+ return Status::OK();
+}
+
+Status MockEnv::GetFileModificationTime(const std::string& fname,
+ uint64_t* time) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ auto iter = file_map_.find(fn);
+ if (iter == file_map_.end()) {
+ return Status::IOError(fn, "File not found");
+ }
+ *time = iter->second->ModifiedTime();
+ return Status::OK();
+}
+
+Status MockEnv::RenameFile(const std::string& src, const std::string& dest) {
+ auto s = NormalizePath(src);
+ auto t = NormalizePath(dest);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(s) == file_map_.end()) {
+ return Status::IOError(s, "File not found");
+ }
+
+ DeleteFileInternal(t);
+ file_map_[t] = file_map_[s];
+ file_map_.erase(s);
+ return Status::OK();
+}
+
+Status MockEnv::LinkFile(const std::string& src, const std::string& dest) {
+ auto s = NormalizePath(src);
+ auto t = NormalizePath(dest);
+ MutexLock lock(&mutex_);
+ if (file_map_.find(s) == file_map_.end()) {
+ return Status::IOError(s, "File not found");
+ }
+
+ DeleteFileInternal(t);
+ file_map_[t] = file_map_[s];
+ file_map_[t]->Ref(); // Otherwise it might get deleted when noone uses s
+ return Status::OK();
+}
+
+Status MockEnv::NewLogger(const std::string& fname,
+ std::shared_ptr<Logger>* result) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ auto iter = file_map_.find(fn);
+ MemFile* file = nullptr;
+ if (iter == file_map_.end()) {
+ file = new MemFile(this, fn, false);
+ file->Ref();
+ file_map_[fn] = file;
+ } else {
+ file = iter->second;
+ }
+ std::unique_ptr<WritableFile> f(new MockWritableFile(file, nullptr));
+ result->reset(new TestMemLogger(std::move(f), this));
+ return Status::OK();
+}
+
+Status MockEnv::LockFile(const std::string& fname, FileLock** flock) {
+ auto fn = NormalizePath(fname);
+ {
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) != file_map_.end()) {
+ if (!file_map_[fn]->is_lock_file()) {
+ return Status::InvalidArgument(fname, "Not a lock file.");
+ }
+ if (!file_map_[fn]->Lock()) {
+ return Status::IOError(fn, "Lock is already held.");
+ }
+ } else {
+ auto* file = new MemFile(this, fn, true);
+ file->Ref();
+ file->Lock();
+ file_map_[fn] = file;
+ }
+ }
+ *flock = new MockEnvFileLock(fn);
+ return Status::OK();
+}
+
+Status MockEnv::UnlockFile(FileLock* flock) {
+ std::string fn =
+ static_cast_with_check<MockEnvFileLock, FileLock>(flock)->FileName();
+ {
+ MutexLock lock(&mutex_);
+ if (file_map_.find(fn) != file_map_.end()) {
+ if (!file_map_[fn]->is_lock_file()) {
+ return Status::InvalidArgument(fn, "Not a lock file.");
+ }
+ file_map_[fn]->Unlock();
+ }
+ }
+ delete flock;
+ return Status::OK();
+}
+
+Status MockEnv::GetTestDirectory(std::string* path) {
+ *path = "/test";
+ return Status::OK();
+}
+
+Status MockEnv::GetCurrentTime(int64_t* unix_time) {
+ auto s = EnvWrapper::GetCurrentTime(unix_time);
+ if (s.ok()) {
+ *unix_time += fake_sleep_micros_.load() / (1000 * 1000);
+ }
+ return s;
+}
+
+uint64_t MockEnv::NowMicros() {
+ return EnvWrapper::NowMicros() + fake_sleep_micros_.load();
+}
+
+uint64_t MockEnv::NowNanos() {
+ return EnvWrapper::NowNanos() + fake_sleep_micros_.load() * 1000;
+}
+
+Status MockEnv::CorruptBuffer(const std::string& fname) {
+ auto fn = NormalizePath(fname);
+ MutexLock lock(&mutex_);
+ auto iter = file_map_.find(fn);
+ if (iter == file_map_.end()) {
+ return Status::IOError(fn, "File not found");
+ }
+ iter->second->CorruptBuffer();
+ return Status::OK();
+}
+
+std::string MockEnv::NormalizePath(const std::string path) {
+ std::string dst;
+ for (auto c : path) {
+ if (!dst.empty() && c == '/' && dst.back() == '/') {
+ continue;
+ }
+ dst.push_back(c);
+ }
+ return dst;
+}
+
+void MockEnv::FakeSleepForMicroseconds(int64_t micros) {
+ fake_sleep_micros_.fetch_add(micros);
+}
+
+#ifndef ROCKSDB_LITE
+// This is to maintain the behavior before swithcing from InMemoryEnv to MockEnv
+Env* NewMemEnv(Env* base_env) { return new MockEnv(base_env); }
+
+#else // ROCKSDB_LITE
+
+Env* NewMemEnv(Env* /*base_env*/) { return nullptr; }
+
+#endif // !ROCKSDB_LITE
+
+} // namespace ROCKSDB_NAMESPACE
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-02 09:45:35 +0000