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diff --git a/src/rocksdb/db/event_helpers.h b/src/rocksdb/db/event_helpers.h
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+// 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 <memory>
+#include <string>
+#include <vector>
+
+#include "db/column_family.h"
+#include "db/version_edit.h"
+#include "logging/event_logger.h"
+#include "rocksdb/listener.h"
+#include "rocksdb/table_properties.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+class EventHelpers {
+ public:
+ static void AppendCurrentTime(JSONWriter* json_writer);
+#ifndef ROCKSDB_LITE
+ static void NotifyTableFileCreationStarted(
+ const std::vector<std::shared_ptr<EventListener>>& listeners,
+ const std::string& db_name, const std::string& cf_name,
+ const std::string& file_path, int job_id, TableFileCreationReason reason);
+#endif // !ROCKSDB_LITE
+ static void NotifyOnBackgroundError(
+ const std::vector<std::shared_ptr<EventListener>>& listeners,
+ BackgroundErrorReason reason, Status* bg_error,
+ InstrumentedMutex* db_mutex, bool* auto_recovery);
+ static void LogAndNotifyTableFileCreationFinished(
+ EventLogger* event_logger,
+ const std::vector<std::shared_ptr<EventListener>>& listeners,
+ const std::string& db_name, const std::string& cf_name,
+ const std::string& file_path, int job_id, const FileDescriptor& fd,
+ uint64_t oldest_blob_file_number, const TableProperties& table_properties,
+ TableFileCreationReason reason, const Status& s);
+ static void LogAndNotifyTableFileDeletion(
+ EventLogger* event_logger, int job_id,
+ uint64_t file_number, const std::string& file_path,
+ const Status& status, const std::string& db_name,
+ const std::vector<std::shared_ptr<EventListener>>& listeners);
+ static void NotifyOnErrorRecoveryCompleted(
+ const std::vector<std::shared_ptr<EventListener>>& listeners,
+ Status bg_error, InstrumentedMutex* db_mutex);
+
+ private:
+ static void LogAndNotifyTableFileCreation(
+ EventLogger* event_logger,
+ const std::vector<std::shared_ptr<EventListener>>& listeners,
+ const FileDescriptor& fd, const TableFileCreationInfo& info);
+};
+
+} // namespace ROCKSDB_NAMESPACE