tx_verify.h File Reference

#include <kernel/cs_main.h>
#include <threadsafety.h>
#include <cstdint>
#include <vector>

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Namespaces
namespace	Consensus

Functions
bool	Consensus::CheckTxInputs (const CTransaction &tx, TxValidationState &state, const CCoinsViewCache &inputs, int nSpendHeight, Amount &txfee)
	Check whether all inputs of this transaction are valid (no double spends and amounts). More...
bool	ContextualCheckTransaction (const Consensus::Params &params, const CTransaction &tx, TxValidationState &state, int nHeight, int64_t nMedianTimePast)
	Context dependent validity checks for non coinbase transactions. More...
bool	EvaluateSequenceLocks (const CBlockIndex &block, std::pair< int, int64_t > lockPair)
bool	SequenceLocks (const CTransaction &tx, int flags, std::vector< int > &prevHeights, const CBlockIndex &block)
	Check if transaction is final per BIP 68 sequence numbers and can be included in a block. More...

Variables
bool ContextualCheckTransactionForCurrentBlock(const CBlockIndex &active_chain_tip, const Consensus::Params &params, const CTransaction &tx, TxValidationState &state) EXCLUSIVE_LOCKS_REQUIRED(std::pair< int, int64_t >	CalculateSequenceLocks (const CTransaction &tx, int flags, std::vector< int > &prevHeights, const CBlockIndex &block)
	This is a variant of ContextualCheckTransaction which computes the contextual check for a transaction based on the chain tip. More...

Function Documentation

ContextualCheckTransaction()

bool ContextualCheckTransaction	(	const Consensus::Params &	params,
		const CTransaction &	tx,
		TxValidationState &	state,
		int	nHeight,
		int64_t	nMedianTimePast
	)

Context dependent validity checks for non coinbase transactions.

This 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 activation/deactivation and CLTV.

Definition at line 42 of file tx_verify.cpp.

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EvaluateSequenceLocks()

bool EvaluateSequenceLocks	(	const CBlockIndex &	block,
		std::pair< int, int64_t >	lockPair
	)

Definition at line 177 of file tx_verify.cpp.

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SequenceLocks()

bool SequenceLocks	(	const CTransaction &	tx,
		int	flags,
		std::vector< int > &	prevHeights,
		const CBlockIndex &	block
	)

Check if transaction is final per BIP 68 sequence numbers and can be included in a block.

Consensus critical. Takes as input a list of heights at which tx's inputs (in order) confirmed.

Definition at line 188 of file tx_verify.cpp.

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Variable Documentation

CalculateSequenceLocks

bool ContextualCheckTransactionForCurrentBlock(const CBlockIndex &active_chain_tip, const Consensus::Params &params, const CTransaction &tx, TxValidationState &state) EXCLUSIVE_LOCKS_REQUIRED(std::pair< int, int64_t > CalculateSequenceLocks(const CTransaction &tx, int flags, std::vector< int > &prevHeights, const CBlockIndex &block)	(	const CTransaction &	tx,
		int	flags,
		std::vector< int > &	prevHeights,
		const CBlockIndex &	block
	)

This is a variant of ContextualCheckTransaction which computes the contextual check for a transaction based on the chain tip.

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. 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.

Definition at line 62 of file tx_verify.h.