1 files changed, 40 insertions, 0 deletions
diff --git a/src/rocksdb/tools/io_tracer_parser_tool.h b/src/rocksdb/tools/io_tracer_parser_tool.h
new file mode 100644
index 000000000..6c22c8f89
--- /dev/null
+++ b/src/rocksdb/tools/io_tracer_parser_tool.h
@@ -0,0 +1,40 @@
+// 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).
+
+#ifndef ROCKSDB_LITE
+#pragma once
+
+#include <memory>
+
+#include "rocksdb/env.h"
+#include "rocksdb/status.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+struct IOTraceHeader;
+struct IOTraceRecord;
+
+// IOTraceRecordParser class reads the IO trace file (in binary format) and
+// dumps the human readable records in output_file_.
+class IOTraceRecordParser {
+ public:
+  explicit IOTraceRecordParser(const std::string& input_file);
+
+  // ReadIOTraceRecords reads the binary trace file records one by one and
+  // invoke PrintHumanReadableIOTraceRecord to dump the records in output_file_.
+  int ReadIOTraceRecords();
+
+ private:
+  void PrintHumanReadableHeader(const IOTraceHeader& header);
+  void PrintHumanReadableIOTraceRecord(const IOTraceRecord& record);
+
+  // Binary file that contains IO trace records.
+  std::string input_file_;
+};
+
+int io_tracer_parser(int argc, char** argv);
+
+}  // namespace ROCKSDB_NAMESPACE
+#endif  // ROCKSDB_LITE