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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/db/binlog/BinlogEvent.h"
#include "td/db/DbKey.h"
#include "td/utils/buffer.h"
#include "td/utils/common.h"
#include "td/utils/Promise.h"
#include "td/utils/StorerBase.h"
namespace td {
class BinlogInterface {
public:
BinlogInterface() = default;
BinlogInterface(const BinlogInterface &) = delete;
BinlogInterface &operator=(const BinlogInterface &) = delete;
BinlogInterface(BinlogInterface &&) = delete;
BinlogInterface &operator=(BinlogInterface &&) = delete;
virtual ~BinlogInterface() = default;
void close(Promise<> promise = {}) {
close_impl(std::move(promise));
}
void close_and_destroy(Promise<> promise = {}) {
close_and_destroy_impl(std::move(promise));
}
void add_raw_event(BinlogDebugInfo info, uint64 event_id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
add_raw_event_impl(event_id, std::move(raw_event), std::move(promise), info);
}
void add_raw_event(uint64 event_id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
add_raw_event_impl(event_id, std::move(raw_event), std::move(promise), {});
}
void lazy_sync(Promise<> promise = Promise<>()) {
add_raw_event_impl(next_event_id(), BufferSlice(), std::move(promise), {});
}
uint64 add(int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
auto event_id = next_event_id();
add_raw_event_impl(event_id, BinlogEvent::create_raw(event_id, type, 0, storer), std::move(promise), {});
return event_id;
}
uint64 rewrite(uint64 event_id, int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
auto seq_no = next_event_id();
add_raw_event_impl(seq_no, BinlogEvent::create_raw(event_id, type, BinlogEvent::Flags::Rewrite, storer),
std::move(promise), {});
return seq_no;
}
uint64 erase(uint64 event_id, Promise<> promise = Promise<>()) {
auto seq_no = next_event_id();
add_raw_event_impl(
seq_no,
BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite, EmptyStorer()),
std::move(promise), {});
return seq_no;
}
virtual uint64 erase_batch(vector<uint64> event_ids) {
if (event_ids.empty()) {
return 0;
}
uint64 seq_no = next_event_id(0);
for (auto event_id : event_ids) {
erase(event_id);
}
return seq_no;
}
virtual void force_sync(Promise<> promise) = 0;
virtual void force_flush() = 0;
virtual void change_key(DbKey db_key, Promise<> promise) = 0;
virtual uint64 next_event_id() = 0;
virtual uint64 next_event_id(int32 shift) = 0;
protected:
virtual void close_impl(Promise<> promise) = 0;
virtual void close_and_destroy_impl(Promise<> promise) = 0;
virtual void add_raw_event_impl(uint64 seq_no, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) = 0;
};
} // namespace td
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