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			65 lines
		
	
	
	
		
			1.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
	
		
			1.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|     This file is part of TON Blockchain Library.
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| 
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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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| 
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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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| 
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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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| 
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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 <utility>
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| #include <memory>
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| #include <atomic>
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| 
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| #include "td/utils/common.h"
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| 
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| namespace td {
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| class FileSyncState {
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|   struct Self;
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| 
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|  public:
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|   class Reader {
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|    public:
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|     Reader() = default;
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|     Reader(std::shared_ptr<Self> self);
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|     bool set_requested_sync_size(size_t size) const;
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|     size_t synced_size() const;
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|     size_t flushed_size() const;
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| 
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|    private:
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|     std::shared_ptr<Self> self;
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|   };
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| 
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|   class Writer {
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|    public:
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|     Writer() = default;
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|     Writer(std::shared_ptr<Self> self);
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|     size_t get_requested_synced_size();
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|     bool set_synced_size(size_t size);
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|     bool set_flushed_size(size_t size);
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| 
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|    private:
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|     std::shared_ptr<Self> self;
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|   };
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| 
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|   static std::pair<Reader, Writer> create();
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| 
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|  private:
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|   struct Self {
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|     std::atomic<size_t> requested_synced_size{0};
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| 
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|     std::atomic<size_t> synced_size{0};
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|     std::atomic<size_t> flushed_size{0};
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|   };
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| };
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| }  // namespace td
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