Differential D5179 Diff 16323 src/consensus/consensus.h

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src/consensus/consensus.h

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	static const uint64_t MAX_TX_SIZE = ONE_MEGABYTE;			static const uint64_t MAX_TX_SIZE = ONE_MEGABYTE;
	/** The minimum allowed size for a transaction, in bytes */			/** The minimum allowed size for a transaction, in bytes */
	static const uint64_t MIN_TX_SIZE = 100;			static const uint64_t MIN_TX_SIZE = 100;
	/** The maximum allowed size for a block, before the UAHF */			/** The maximum allowed size for a block, before the UAHF */
	static const uint64_t LEGACY_MAX_BLOCK_SIZE = ONE_MEGABYTE;			static const uint64_t LEGACY_MAX_BLOCK_SIZE = ONE_MEGABYTE;
	/** Default setting for maximum allowed size for a block, in bytes */			/** Default setting for maximum allowed size for a block, in bytes */
	static const uint64_t DEFAULT_MAX_BLOCK_SIZE = 32 * ONE_MEGABYTE;			static const uint64_t DEFAULT_MAX_BLOCK_SIZE = 32 * ONE_MEGABYTE;
	/**			/**
	* The maximum allowed number of signature check operations per MB in a block			* The maximum allowed number of parsed signature check operations (SigOps)
	* (network rule).			* per MB in a block (network rule).
	*/			*/
	static const int64_t MAX_BLOCK_SIGOPS_PER_MB = 20000;			static const int64_t MAX_BLOCK_SIGOPS_PER_MB = 20000;
	/** allowed number of signature check operations per transaction. */			/** allowed number of signature check operations per transaction. */
	static const uint64_t MAX_TX_SIGOPS_COUNT = 20000;			static const uint64_t MAX_TX_SIGOPS_COUNT = 20000;
	/**			/**
				* The ratio between the maximum allowable block size and the maximum allowable
				* SigChecks (executed signature check operations) in the block. (network rule).
				*/
				static const int BLOCK_MAXBYTES_MAXSIGCHECKS_RATIO = 141;
				/**
	* Coinbase transaction outputs can only be spent after this number of new			* Coinbase transaction outputs can only be spent after this number of new
	* blocks (network rule).			* blocks (network rule).
	*/			*/
	static const int COINBASE_MATURITY = 100;			static const int COINBASE_MATURITY = 100;
	/** Coinbase scripts have their own script size limit. */			/** Coinbase scripts have their own script size limit. */
	static const int MAX_COINBASE_SCRIPTSIG_SIZE = 100;			static const int MAX_COINBASE_SCRIPTSIG_SIZE = 100;

	/** Flags for nSequence and nLockTime locks */			/** Flags for nSequence and nLockTime locks */
	/** Interpret sequence numbers as relative lock-time constraints. */			/** Interpret sequence numbers as relative lock-time constraints. */
	static constexpr unsigned int LOCKTIME_VERIFY_SEQUENCE = (1 << 0);			static constexpr unsigned int LOCKTIME_VERIFY_SEQUENCE = (1 << 0);
	/** Use GetMedianTimePast() instead of nTime for end point timestamp. */			/** Use GetMedianTimePast() instead of nTime for end point timestamp. */
	static constexpr unsigned int LOCKTIME_MEDIAN_TIME_PAST = (1 << 1);			static constexpr unsigned int LOCKTIME_MEDIAN_TIME_PAST = (1 << 1);

	/**			/**
	* Compute the maximum number of sigops operation that can contained in a block			* Compute the maximum number of sigops operation that can contained in a block
	* given the block size as parameter. It is computed by multiplying			* given the block size as parameter. It is computed by multiplying
	* MAX_BLOCK_SIGOPS_PER_MB by the size of the block in MB rounded up to the			* MAX_BLOCK_SIGOPS_PER_MB by the size of the block in MB rounded up to the
	* closest integer.			* closest integer.
	*/			*/
	inline uint64_t GetMaxBlockSigOpsCount(uint64_t blockSize) {			inline uint64_t GetMaxBlockSigOpsCount(uint64_t blockSize) {
	auto nMbRoundedUp = 1 + ((blockSize - 1) / ONE_MEGABYTE);			auto nMbRoundedUp = 1 + ((blockSize - 1) / ONE_MEGABYTE);
	return nMbRoundedUp * MAX_BLOCK_SIGOPS_PER_MB;			return nMbRoundedUp * MAX_BLOCK_SIGOPS_PER_MB;
	}			}

				/**
				* Compute the maximum number of sigchecks that can be contained in a block
				* given the MAXIMUM block size as parameter. The maximum sigchecks scale
				* linearly with the maximum block size and do not depend on the actual
				* block size. The returned value is rounded down (there are no fractional
				* sigchecks so the fractional part is meaningless).
				*/
				inline uint64_t GetMaxBlockSigChecksCount(uint64_t maxBlockSize) {
				return maxBlockSize / BLOCK_MAXBYTES_MAXSIGCHECKS_RATIO;
				}

	#endif // BITCOIN_CONSENSUS_CONSENSUS_H			#endif // BITCOIN_CONSENSUS_CONSENSUS_H