Differential D6860 Diff 22263 src/consensus/tx_verify.h

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src/consensus/tx_verify.h

	// Copyright (c) 2018-2020 The Bitcoin developers			// Copyright (c) 2018-2020 The Bitcoin 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_CONSENSUS_TX_VERIFY_H			#ifndef BITCOIN_CONSENSUS_TX_VERIFY_H
	#define BITCOIN_CONSENSUS_TX_VERIFY_H			#define BITCOIN_CONSENSUS_TX_VERIFY_H

	#include <cstdint>			#include <cstdint>
	#include <vector>			#include <vector>

	struct Amount;			struct Amount;
	class CBlockIndex;			class CBlockIndex;
	class CCoinsViewCache;			class CCoinsViewCache;
	class CTransaction;			class CTransaction;
	class CValidationState;			class TxValidationState;

	namespace Consensus {			namespace Consensus {
	struct Params;			struct Params;

	/**			/**
	* Check whether all inputs of this transaction are valid (no double spends and			* Check whether all inputs of this transaction are valid (no double spends and
	* amounts). This does not modify the UTXO set. This does not check scripts and			* amounts). This does not modify the UTXO set. This does not check scripts and
	* sigs.			* sigs.
	* @param[out] txfee Set to the transaction fee if successful.			* @param[out] txfee Set to the transaction fee if successful.
	* Preconditions: tx.IsCoinBase() is false.			* Preconditions: tx.IsCoinBase() is false.
	*/			*/
	bool CheckTxInputs(const CTransaction &tx, CValidationState &state,			bool CheckTxInputs(const CTransaction &tx, TxValidationState &state,
	const CCoinsViewCache &inputs, int nSpendHeight,			const CCoinsViewCache &inputs, int nSpendHeight,
	Amount &txfee);			Amount &txfee);

	} // namespace Consensus			} // namespace Consensus

	/**			/**
	* Context dependent validity checks for non coinbase transactions. This			* Context dependent validity checks for non coinbase transactions. This
	* doesn't check the validity of the transaction against the UTXO set, but			* doesn't check the validity of the transaction against the UTXO set, but
	* simply characteristic that are suceptible to change over time such as feature			* simply characteristic that are suceptible to change over time such as feature
	* activation/deactivation and CLTV.			* activation/deactivation and CLTV.
	*/			*/
	bool ContextualCheckTransaction(const Consensus::Params &params,			bool ContextualCheckTransaction(const Consensus::Params &params,
	const CTransaction &tx, CValidationState &state,			const CTransaction &tx,
	int nHeight, int64_t nLockTimeCutoff,			TxValidationState &state, int nHeight,
				int64_t nLockTimeCutoff,
	int64_t nMedianTimePast);			int64_t nMedianTimePast);

	/**			/**
	* Calculates the block height and previous block's median time past at which			* Calculates the block height and previous block's median time past at which
	* the transaction will be considered final in the context of BIP 68.			* the transaction will be considered final in the context of BIP 68.
	* Also removes from the vector of input heights any entries which did not			* Also removes from the vector of input heights any entries which did not
	* correspond to sequence locked inputs as they do not affect the calculation.			* correspond to sequence locked inputs as they do not affect the calculation.
	*/			*/
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