//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
// 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/actor/actor.h"
#include "td/actor/PromiseFuture.h"
#include "td/utils/common.h"
#include <functional>
#include <unordered_map>
namespace td {
// combines identical queries into one request
class QueryCombiner : public Actor {
public:
explicit QueryCombiner(Slice name) {
register_actor(name, this).release();
}
void add_query(int64 query_id, Promise<Promise<Unit>> &&send_query, Promise<Unit> &&promise);
private:
struct QueryInfo {
vector<Promise<Unit>> promises;
bool is_sent = false;
};
std::unordered_map<int64, QueryInfo> queries_;
void on_get_query_result(int64 query_id, Result<Unit> &&result);
} // namespace td
