54 lines
1.3 KiB
C++
54 lines
1.3 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/actor.h"
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#include "td/actor/PromiseFuture.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 <queue>
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#include <unordered_map>
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namespace td {
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// combines identical queries into one request
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class QueryCombiner : public Actor {
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public:
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explicit QueryCombiner(Slice name, double min_delay = 0) : min_delay_(min_delay) {
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register_actor(name, this).release();
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}
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void add_query(int64 query_id, Promise<Promise<Unit>> &&send_query, Promise<Unit> &&promise);
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private:
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struct QueryInfo {
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vector<Promise<Unit>> promises;
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bool is_sent = false;
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Promise<Promise<Unit>> send_query;
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};
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int32 query_count_ = 0;
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double next_query_time_ = 0.0;
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double min_delay_;
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std::queue<int64> delayed_queries_;
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std::unordered_map<int64, QueryInfo> queries_;
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void do_send_query(int64 query_id, QueryInfo &query);
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void on_get_query_result(int64 query_id, Result<Unit> &&result);
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void loop() override;
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};
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} // namespace td
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