47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
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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/telegram/MessageId.h"
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#include "td/utils/common.h"
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#include <functional>
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namespace td {
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struct OrderedMessage {
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int32 random_y = 0;
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bool have_previous = false;
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bool have_next = false;
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MessageId message_id;
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unique_ptr<OrderedMessage> left;
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unique_ptr<OrderedMessage> right;
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};
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struct OrderedMessages {
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unique_ptr<OrderedMessage> messages_;
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OrderedMessage *insert(MessageId message_id);
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void erase(MessageId message_id);
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vector<MessageId> find_older_messages(MessageId max_message_id) const;
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vector<MessageId> find_newer_messages(MessageId min_message_id) const;
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MessageId find_message_by_date(int32 date, const std::function<int32(MessageId)> &get_message_date) const;
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vector<MessageId> find_messages_by_date(int32 min_date, int32 max_date,
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const std::function<int32(MessageId)> &get_message_date) const;
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};
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} // namespace td
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