Differential D12149 Diff 35439 src/index/blockfilterindex.h

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src/index/blockfilterindex.h

	// Copyright (c) 2018 The Bitcoin Core developers			// Copyright (c) 2018 The Bitcoin Core developers
	// Distributed under the MIT software license, see the accompanying			// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.			// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#ifndef BITCOIN_INDEX_BLOCKFILTERINDEX_H			#ifndef BITCOIN_INDEX_BLOCKFILTERINDEX_H
	#define BITCOIN_INDEX_BLOCKFILTERINDEX_H			#define BITCOIN_INDEX_BLOCKFILTERINDEX_H

	#include <blockfilter.h>			#include <blockfilter.h>
	#include <chain.h>			#include <chain.h>
	#include <flatfile.h>			#include <flatfile.h>
	#include <index/base.h>			#include <index/base.h>
				#include <util/hasher.h>

	/** Interval between compact filter checkpoints. See BIP 157. */			/** Interval between compact filter checkpoints. See BIP 157. */
	static constexpr int CFCHECKPT_INTERVAL = 1000;			static constexpr int CFCHECKPT_INTERVAL = 1000;

	struct FilterHeaderHasher {
	size_t operator()(const uint256 &hash) const {
	return ReadLE64(hash.begin());
	}
	};

	/**			/**
	* BlockFilterIndex is used to store and retrieve block filters, hashes, and			* BlockFilterIndex is used to store and retrieve block filters, hashes, and
	* headers for a range of blocks by height. An index is constructed for each			* headers for a range of blocks by height. An index is constructed for each
	* supported filter type with its own database (ie. filter data for different			* supported filter type with its own database (ie. filter data for different
	* types are stored in separate databases).			* types are stored in separate databases).
	*			*
	* This index is used to serve BIP 157 net requests.			* This index is used to serve BIP 157 net requests.
	*/			*/
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