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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
commite6918187568dbd01842d8d1d2c808ce16a894239 (patch)
tree64f88b554b444a49f656b6c656111a145cbbaa28 /src/rocksdb/utilities/trace/replayer_impl.h
parentInitial commit. (diff)
downloadceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz
ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/rocksdb/utilities/trace/replayer_impl.h')
-rw-r--r--src/rocksdb/utilities/trace/replayer_impl.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/trace/replayer_impl.h b/src/rocksdb/utilities/trace/replayer_impl.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
+#ifndef ROCKSDB_LITE
+
+#include <atomic>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "rocksdb/db.h"
+#include "rocksdb/env.h"
+#include "rocksdb/status.h"
+#include "rocksdb/trace_reader_writer.h"
+#include "rocksdb/trace_record.h"
+#include "rocksdb/trace_record_result.h"
+#include "rocksdb/utilities/replayer.h"
+#include "trace_replay/trace_replay.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+class ReplayerImpl : public Replayer {
+ public:
+ ReplayerImpl(DB* db, const std::vector<ColumnFamilyHandle*>& handles,
+ std::unique_ptr<TraceReader>&& reader);
+ ~ReplayerImpl() override;
+
+ using Replayer::Prepare;
+ Status Prepare() override;
+
+ using Replayer::Next;
+ Status Next(std::unique_ptr<TraceRecord>* record) override;
+
+ using Replayer::Execute;
+ Status Execute(const std::unique_ptr<TraceRecord>& record,
+ std::unique_ptr<TraceRecordResult>* result) override;
+
+ using Replayer::Replay;
+ Status Replay(
+ const ReplayOptions& options,
+ const std::function<void(Status, std::unique_ptr<TraceRecordResult>&&)>&
+ result_callback) override;
+
+ using Replayer::GetHeaderTimestamp;
+ uint64_t GetHeaderTimestamp() const override;
+
+ private:
+ Status ReadHeader(Trace* header);
+ Status ReadTrace(Trace* trace);
+
+ // Generic function to execute a Trace in a thread pool.
+ static void BackgroundWork(void* arg);
+
+ std::unique_ptr<TraceReader> trace_reader_;
+ std::mutex mutex_;
+ std::atomic<bool> prepared_;
+ std::atomic<bool> trace_end_;
+ uint64_t header_ts_;
+ std::unique_ptr<TraceRecord::Handler> exec_handler_;
+ Env* env_;
+ // When reading the trace header, the trace file version can be parsed.
+ // Replayer will use different decode method to get the trace content based
+ // on different trace file version.
+ int trace_file_version_;
+};
+
+// Arguments passed to BackgroundWork() for replaying in a thread pool.
+struct ReplayerWorkerArg {
+ Trace trace_entry;
+ int trace_file_version;
+ // Handler to execute TraceRecord.
+ TraceRecord::Handler* handler;
+ // Callback function to report the error status and the timestamp of the
+ // TraceRecord (not the start/end timestamp of executing the TraceRecord).
+ std::function<void(Status, uint64_t)> error_cb;
+ // Callback function to report the trace execution status and operation
+ // execution status/result(s).
+ std::function<void(Status, std::unique_ptr<TraceRecordResult>&&)> result_cb;
+};
+
+} // namespace ROCKSDB_NAMESPACE
+#endif // ROCKSDB_LITE