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// Copyright (c) 2017-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).
#pragma once
#ifndef ROCKSDB_LITE
#include <string>
#include "file/filename.h"
#include "rocksdb/db.h"
#include "rocksdb/utilities/checkpoint.h"
namespace ROCKSDB_NAMESPACE {
class CheckpointImpl : public Checkpoint {
public:
explicit CheckpointImpl(DB* db) : db_(db) {}
Status CreateCheckpoint(const std::string& checkpoint_dir,
uint64_t log_size_for_flush,
uint64_t* sequence_number_ptr) override;
Status ExportColumnFamily(ColumnFamilyHandle* handle,
const std::string& export_dir,
ExportImportFilesMetaData** metadata) override;
// Checkpoint logic can be customized by providing callbacks for link, copy,
// or create.
Status CreateCustomCheckpoint(
std::function<Status(const std::string& src_dirname,
const std::string& fname, FileType type)>
link_file_cb,
std::function<Status(const std::string& src_dirname,
const std::string& fname, uint64_t size_limit_bytes,
FileType type, const std::string& checksum_func_name,
const std::string& checksum_val,
const Temperature src_temperature)>
copy_file_cb,
std::function<Status(const std::string& fname,
const std::string& contents, FileType type)>
create_file_cb,
uint64_t* sequence_number, uint64_t log_size_for_flush,
bool get_live_table_checksum = false);
private:
void CleanStagingDirectory(const std::string& path, Logger* info_log);
// Export logic customization by providing callbacks for link or copy.
Status ExportFilesInMetaData(
const DBOptions& db_options, const ColumnFamilyMetaData& metadata,
std::function<Status(const std::string& src_dirname,
const std::string& fname)>
link_file_cb,
std::function<Status(const std::string& src_dirname,
const std::string& fname)>
copy_file_cb);
private:
DB* db_;
};
} // namespace ROCKSDB_NAMESPACE
#endif // ROCKSDB_LITE
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