38 lines
		
	
	
	
		
			808 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
	
		
			808 B
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/flat_map.h"
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namespace MTP::details {
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// Received msgIds and wereAcked msgIds count stored.
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inline constexpr auto kIdsBufferSize = 400;
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class ReceivedIdsManager final {
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public:
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	enum class State {
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		NotFound,
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		NeedsAck,
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		NoAckNeeded,
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	};
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	bool registerMsgId(mtpMsgId msgId, bool needAck);
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	[[nodiscard]] mtpMsgId min() const;
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	[[nodiscard]] mtpMsgId max() const;
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	[[nodiscard]] State lookup(mtpMsgId msgId) const;
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	void shrink();
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	void clear();
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private:
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	base::flat_map<mtpMsgId, bool> _idsNeedAck;
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};
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} // namespace MTP::details
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