81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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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/PromiseFuture.h"
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#include "td/db/binlog/BinlogEvent.h"
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#include "td/db/DbKey.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/StorerBase.h"
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namespace td {
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class BinlogInterface {
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public:
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BinlogInterface() = default;
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BinlogInterface(const BinlogInterface &) = delete;
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BinlogInterface &operator=(const BinlogInterface &) = delete;
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BinlogInterface(BinlogInterface &&) = delete;
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BinlogInterface &operator=(BinlogInterface &&) = delete;
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virtual ~BinlogInterface() = default;
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void close(Promise<> promise = {}) {
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close_impl(std::move(promise));
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}
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void close_and_destroy(Promise<> promise = {}) {
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close_and_destroy_impl(std::move(promise));
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}
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void add_raw_event(BinlogDebugInfo info, uint64 id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
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add_raw_event_impl(id, std::move(raw_event), std::move(promise), info);
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}
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void add_raw_event(uint64 id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
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add_raw_event_impl(id, std::move(raw_event), std::move(promise), {});
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}
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void lazy_sync(Promise<> promise = Promise<>()) {
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add_raw_event_impl(next_id(), BufferSlice(), std::move(promise), {});
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}
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uint64 add(int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
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auto logevent_id = next_id();
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add_raw_event_impl(logevent_id, BinlogEvent::create_raw(logevent_id, type, 0, storer), std::move(promise), {});
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return logevent_id;
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}
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uint64 rewrite(uint64 logevent_id, int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
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auto seq_no = next_id();
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add_raw_event_impl(seq_no, BinlogEvent::create_raw(logevent_id, type, BinlogEvent::Flags::Rewrite, storer),
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std::move(promise), {});
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return seq_no;
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}
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uint64 erase(uint64 logevent_id, Promise<> promise = Promise<>()) {
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auto seq_no = next_id();
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add_raw_event_impl(seq_no,
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BinlogEvent::create_raw(logevent_id, BinlogEvent::ServiceTypes::Empty,
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BinlogEvent::Flags::Rewrite, EmptyStorer()),
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std::move(promise), {});
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return seq_no;
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}
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virtual void force_sync(Promise<> promise) = 0;
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virtual void force_flush() = 0;
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virtual void change_key(DbKey db_key, Promise<> promise = Promise<>()) = 0;
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virtual uint64 next_id() = 0;
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virtual uint64 next_id(int32 shift) = 0;
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protected:
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virtual void close_impl(Promise<> promise) = 0;
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virtual void close_and_destroy_impl(Promise<> promise) = 0;
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virtual void add_raw_event_impl(uint64 id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) = 0;
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};
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} // namespace td
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