fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.7 KiB
86 lines
2.7 KiB
// 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
|
|
|