mirror of https://github.com/facebook/rocksdb.git
118 lines
4.0 KiB
C++
118 lines
4.0 KiB
C++
// 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.
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
#include "rocksdb/env.h"
|
|
#include "rocksdb/status.h"
|
|
#include "port/port.h"
|
|
#include "util/mutexlock.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
class MemFile;
|
|
class MockEnv : public EnvWrapper {
|
|
public:
|
|
explicit MockEnv(Env* base_env);
|
|
|
|
~MockEnv() override;
|
|
|
|
// Partial implementation of the Env interface.
|
|
Status RegisterDbPaths(const std::vector<std::string>& /*paths*/) override {
|
|
return Status::OK();
|
|
}
|
|
|
|
Status UnregisterDbPaths(const std::vector<std::string>& /*paths*/) override {
|
|
return Status::OK();
|
|
}
|
|
|
|
Status NewSequentialFile(const std::string& fname,
|
|
std::unique_ptr<SequentialFile>* result,
|
|
const EnvOptions& soptions) override;
|
|
|
|
Status NewRandomAccessFile(const std::string& fname,
|
|
std::unique_ptr<RandomAccessFile>* result,
|
|
const EnvOptions& soptions) override;
|
|
|
|
Status NewRandomRWFile(const std::string& fname,
|
|
std::unique_ptr<RandomRWFile>* result,
|
|
const EnvOptions& options) override;
|
|
|
|
Status ReuseWritableFile(const std::string& fname,
|
|
const std::string& old_fname,
|
|
std::unique_ptr<WritableFile>* result,
|
|
const EnvOptions& options) override;
|
|
|
|
Status NewWritableFile(const std::string& fname,
|
|
std::unique_ptr<WritableFile>* result,
|
|
const EnvOptions& env_options) override;
|
|
|
|
Status NewDirectory(const std::string& name,
|
|
std::unique_ptr<Directory>* result) override;
|
|
|
|
Status FileExists(const std::string& fname) override;
|
|
|
|
Status GetChildren(const std::string& dir,
|
|
std::vector<std::string>* result) override;
|
|
|
|
void DeleteFileInternal(const std::string& fname);
|
|
|
|
Status DeleteFile(const std::string& fname) override;
|
|
|
|
Status Truncate(const std::string& fname, size_t size) override;
|
|
|
|
Status CreateDir(const std::string& dirname) override;
|
|
|
|
Status CreateDirIfMissing(const std::string& dirname) override;
|
|
|
|
Status DeleteDir(const std::string& dirname) override;
|
|
|
|
Status GetFileSize(const std::string& fname, uint64_t* file_size) override;
|
|
|
|
Status GetFileModificationTime(const std::string& fname,
|
|
uint64_t* time) override;
|
|
|
|
Status RenameFile(const std::string& src, const std::string& target) override;
|
|
|
|
Status LinkFile(const std::string& src, const std::string& target) override;
|
|
|
|
Status NewLogger(const std::string& fname,
|
|
std::shared_ptr<Logger>* result) override;
|
|
|
|
Status LockFile(const std::string& fname, FileLock** flock) override;
|
|
|
|
Status UnlockFile(FileLock* flock) override;
|
|
|
|
Status GetTestDirectory(std::string* path) override;
|
|
|
|
// Results of these can be affected by FakeSleepForMicroseconds()
|
|
Status GetCurrentTime(int64_t* unix_time) override;
|
|
uint64_t NowMicros() override;
|
|
uint64_t NowNanos() override;
|
|
|
|
Status CorruptBuffer(const std::string& fname);
|
|
|
|
// Doesn't really sleep, just affects output of GetCurrentTime(), NowMicros()
|
|
// and NowNanos()
|
|
void FakeSleepForMicroseconds(int64_t micros);
|
|
|
|
private:
|
|
// Map from filenames to MemFile objects, representing a simple file system.
|
|
typedef std::map<std::string, MemFile*> FileSystem;
|
|
port::Mutex mutex_;
|
|
FileSystem file_map_; // Protected by mutex_.
|
|
|
|
std::atomic<int64_t> fake_sleep_micros_;
|
|
};
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|