69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/actor/actor.h"
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#include "td/actor/PromiseFuture.h"
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#include "td/db/binlog/Binlog.h"
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#include "td/db/binlog/BinlogInterface.h"
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#include "td/utils/buffer.h"
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#include "td/utils/common.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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#include <atomic>
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#include <functional>
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namespace td {
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namespace detail {
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class BinlogActor;
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} // namespace detail
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class ConcurrentBinlog : public BinlogInterface {
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public:
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using Callback = std::function<void(const BinlogEvent &)>;
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Result<BinlogInfo> init(string path, const Callback &callback, DbKey db_key = DbKey::empty(),
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DbKey old_db_key = DbKey::empty(), int scheduler_id = -1) TD_WARN_UNUSED_RESULT;
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ConcurrentBinlog();
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explicit ConcurrentBinlog(std::unique_ptr<Binlog> binlog, int scheduler_id = -1);
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ConcurrentBinlog(const ConcurrentBinlog &other) = delete;
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ConcurrentBinlog &operator=(const ConcurrentBinlog &other) = delete;
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ConcurrentBinlog(ConcurrentBinlog &&other) = delete;
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ConcurrentBinlog &operator=(ConcurrentBinlog &&other) = delete;
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~ConcurrentBinlog() override;
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void force_sync(Promise<> promise) override;
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void force_flush() override;
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void change_key(DbKey db_key, Promise<> promise) override;
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uint64 next_id() override {
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return last_id_.fetch_add(1, std::memory_order_relaxed);
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}
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uint64 next_id(int32 shift) override {
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return last_id_.fetch_add(shift, std::memory_order_relaxed);
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}
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CSlice get_path() const {
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return path_;
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}
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private:
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void init_impl(std::unique_ptr<Binlog> binlog, int scheduler_id);
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void close_impl(Promise<> promise) override;
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void close_and_destroy_impl(Promise<> promise) override;
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void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) override;
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ActorOwn<detail::BinlogActor> binlog_actor_;
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string path_;
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std::atomic<uint64> last_id_;
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};
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} // namespace td
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