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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/rocksdb/utilities/trace/file_trace_reader_writer.h | |
parent | Initial commit. (diff) | |
download | ceph-upstream/18.2.2.tar.xz ceph-upstream/18.2.2.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/utilities/trace/file_trace_reader_writer.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/trace/file_trace_reader_writer.h b/src/rocksdb/utilities/trace/file_trace_reader_writer.h new file mode 100644 index 000000000..65d483108 --- /dev/null +++ b/src/rocksdb/utilities/trace/file_trace_reader_writer.h @@ -0,0 +1,48 @@ +// 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). + +#pragma once + +#include "rocksdb/trace_reader_writer.h" + +namespace ROCKSDB_NAMESPACE { + +class RandomAccessFileReader; +class WritableFileWriter; + +// FileTraceReader allows reading RocksDB traces from a file. +class FileTraceReader : public TraceReader { + public: + explicit FileTraceReader(std::unique_ptr<RandomAccessFileReader>&& reader); + ~FileTraceReader(); + + virtual Status Read(std::string* data) override; + virtual Status Close() override; + virtual Status Reset() override; + + private: + std::unique_ptr<RandomAccessFileReader> file_reader_; + Slice result_; + size_t offset_; + char* const buffer_; + + static const unsigned int kBufferSize; +}; + +// FileTraceWriter allows writing RocksDB traces to a file. +class FileTraceWriter : public TraceWriter { + public: + explicit FileTraceWriter(std::unique_ptr<WritableFileWriter>&& file_writer); + ~FileTraceWriter(); + + virtual Status Write(const Slice& data) override; + virtual Status Close() override; + virtual uint64_t GetFileSize() override; + + private: + std::unique_ptr<WritableFileWriter> file_writer_; +}; + +} // namespace ROCKSDB_NAMESPACE |