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			65 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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    This file is part of TON Blockchain Library.
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    TON Blockchain Library is free software: you can redistribute it and/or modify
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    it under the terms of the GNU Lesser General Public License as published by
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    the Free Software Foundation, either version 2 of the License, or
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    (at your option) any later version.
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    TON Blockchain Library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public License
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    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
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    Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "td/actor/actor.h"
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#include "validator/interfaces/validator-manager.h"
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#include <set>
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namespace ton {
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namespace validator {
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class TokenManager : public td::actor::Actor {
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 public:
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  TokenManager() {
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  }
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  void alarm() override;
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  void get_download_token(size_t download_size, td::uint32 priority, td::Timestamp timeout,
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                          td::Promise<std::unique_ptr<DownloadToken>> promise);
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  void download_token_cleared(size_t download_size, td::uint32 priority);
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 private:
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  std::unique_ptr<DownloadToken> gen_token(size_t download_size, td::uint32 priority);
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  struct PendingPromiseKey {
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    size_t download_size;
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    td::uint32 priority;
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    td::uint64 seqno;
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    bool operator<(const PendingPromiseKey &with) const {
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      return priority < with.priority || (priority == with.priority && seqno < with.seqno);
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    }
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  };
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  struct PendingPromise {
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    td::Timestamp timeout;
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    td::Promise<std::unique_ptr<DownloadToken>> promise;
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  };
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  td::uint64 seqno_ = 0;
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  std::map<PendingPromiseKey, PendingPromise> pending_;
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  td::uint32 free_tokens_ = 16;
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  td::uint32 free_priority_tokens_ = 16;
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  td::uint32 max_priority_tokens_ = 16;
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};
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}  // namespace validator
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}  // namespace ton
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