48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include "rocksdb/trace_reader_writer.h"
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namespace rocksdb {
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class RandomAccessFileReader;
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class WritableFileWriter;
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// FileTraceReader allows reading RocksDB traces from a file.
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class FileTraceReader : public TraceReader {
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public:
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explicit FileTraceReader(std::unique_ptr<RandomAccessFileReader>&& reader);
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~FileTraceReader();
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virtual Status Read(std::string* data) override;
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virtual Status Close() override;
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private:
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unique_ptr<RandomAccessFileReader> file_reader_;
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Slice result_;
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size_t offset_;
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char* const buffer_;
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static const unsigned int kBufferSize;
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};
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// FileTraceWriter allows writing RocksDB traces to a file.
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class FileTraceWriter : public TraceWriter {
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public:
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explicit FileTraceWriter(std::unique_ptr<WritableFileWriter>&& file_writer)
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: file_writer_(std::move(file_writer)) {}
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~FileTraceWriter();
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virtual Status Write(const Slice& data) override;
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virtual Status Close() override;
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private:
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unique_ptr<WritableFileWriter> file_writer_;
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};
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} // namespace rocksdb
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