node::BlockAssembler Class Reference

Generate a new block, without valid proof-of-work. More...

#include <miner.h>

Collaboration diagram for node::BlockAssembler:

Classes
struct	Options

Public Member Functions
	BlockAssembler (const Config &config, Chainstate &chainstate, const CTxMemPool &mempool)
	BlockAssembler (Chainstate &chainstate, const CChainParams &params, const CTxMemPool &mempool, const Options &options)
std::unique_ptr< CBlockTemplate >	CreateNewBlock (const CScript &scriptPubKeyIn)
	Construct a new block template with coinbase to scriptPubKeyIn. More...
uint64_t	GetMaxGeneratedBlockSize () const

Static Public Attributes
static std::optional< int64_t >	m_last_block_num_txs {std::nullopt}
static std::optional< int64_t >	m_last_block_size {std::nullopt}

Private Member Functions
void	resetBlock ()
	Clear the block's state and prepare for assembling a new block. More...
void	AddToBlock (const CTxMemPoolEntry &entry)
	Add a tx to the block. More...
void	addTxs () EXCLUSIVE_LOCKS_REQUIRED(m_mempool.cs)
	Add transactions from the mempool based on individual tx feerate. More...
bool	TestTxFits (uint64_t txSize, int64_t txSigChecks) const
	Test if a new Tx would "fit" in the block. More...
bool	CheckTx (const CTransaction &tx) const
	Check the transaction for finality, etc before adding to block. More...

Private Attributes
std::unique_ptr< CBlockTemplate >	pblocktemplate
uint64_t	nMaxGeneratedBlockSize
uint64_t	nMaxGeneratedBlockSigChecks
CFeeRate	blockMinFeeRate
uint64_t	nBlockSize
uint64_t	nBlockTx
uint64_t	nBlockSigChecks
Amount	nFees
int	nHeight
int64_t	nLockTimeCutoff
int64_t	nMedianTimePast
const CChainParams &	chainParams
const CTxMemPool &	m_mempool
Chainstate &	m_chainstate
const bool	fPrintPriority

Detailed Description

Generate a new block, without valid proof-of-work.

Definition at line 48 of file miner.h.

Constructor & Destructor Documentation

BlockAssembler() [1/2]

node::BlockAssembler::BlockAssembler	(	const Config &	config,
		Chainstate &	chainstate,
		const CTxMemPool &	mempool
	)

Definition at line 103 of file miner.cpp.

BlockAssembler() [2/2]

node::BlockAssembler::BlockAssembler	(	Chainstate &	chainstate,
		const CChainParams &	params,
		const CTxMemPool &	mempool,
		const Options &	options
	)

Definition at line 59 of file miner.cpp.

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Member Function Documentation

AddToBlock()

void node::BlockAssembler::AddToBlock ( const CTxMemPoolEntry &  entry )

private

Add a tx to the block.

Definition at line 255 of file miner.cpp.

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addTxs()

void node::BlockAssembler::addTxs ( )

private

Add transactions from the mempool based on individual tx feerate.

addTxs includes transactions paying a fee by ensuring that the partial ordering of transactions is maintained.

That is to say children come after parents, despite having a potentially larger fee.

Definition at line 282 of file miner.cpp.

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CheckTx()

bool node::BlockAssembler::CheckTx ( const CTransaction &  tx ) const

private

Check the transaction for finality, etc before adding to block.

Definition at line 271 of file miner.cpp.

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CreateNewBlock()

std::unique_ptr< CBlockTemplate > node::BlockAssembler::CreateNewBlock

(

const CScript &

scriptPubKeyIn

)

Construct a new block template with coinbase to scriptPubKeyIn.

Definition at line 122 of file miner.cpp.

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GetMaxGeneratedBlockSize()

uint64_t node::BlockAssembler::GetMaxGeneratedBlockSize ( ) const

inline

Definition at line 92 of file miner.h.

resetBlock()

void node::BlockAssembler::resetBlock ( )

private

Clear the block's state and prepare for assembling a new block.

Definition at line 108 of file miner.cpp.

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TestTxFits()

bool node::BlockAssembler::TestTxFits ( uint64_t  txSize, int64_t  txSigChecks  ) const

private

Test if a new Tx would "fit" in the block.

Definition at line 243 of file miner.cpp.

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Member Data Documentation

blockMinFeeRate

CFeeRate node::BlockAssembler::blockMinFeeRate

private

Definition at line 56 of file miner.h.

chainParams

const CChainParams& node::BlockAssembler::chainParams

private

Definition at line 68 of file miner.h.

fPrintPriority

const bool node::BlockAssembler::fPrintPriority

private

Definition at line 73 of file miner.h.

m_chainstate

Chainstate& node::BlockAssembler::m_chainstate

private

Definition at line 71 of file miner.h.

m_last_block_num_txs

std::optional< int64_t > node::BlockAssembler::m_last_block_num_txs {std::nullopt}

static

Definition at line 94 of file miner.h.

m_last_block_size

std::optional< int64_t > node::BlockAssembler::m_last_block_size {std::nullopt}

static

Definition at line 95 of file miner.h.

m_mempool

const CTxMemPool& node::BlockAssembler::m_mempool

private

Definition at line 70 of file miner.h.

nBlockSigChecks

uint64_t node::BlockAssembler::nBlockSigChecks

private

Definition at line 61 of file miner.h.

nBlockSize

uint64_t node::BlockAssembler::nBlockSize

private

Definition at line 59 of file miner.h.

nBlockTx

uint64_t node::BlockAssembler::nBlockTx

private

Definition at line 60 of file miner.h.

nFees

Amount node::BlockAssembler::nFees

private

Definition at line 62 of file miner.h.

nHeight

int node::BlockAssembler::nHeight

private

Definition at line 65 of file miner.h.

nLockTimeCutoff

int64_t node::BlockAssembler::nLockTimeCutoff

private

Definition at line 66 of file miner.h.

nMaxGeneratedBlockSigChecks

uint64_t node::BlockAssembler::nMaxGeneratedBlockSigChecks

private

Definition at line 55 of file miner.h.

nMaxGeneratedBlockSize

uint64_t node::BlockAssembler::nMaxGeneratedBlockSize

private

Definition at line 54 of file miner.h.

nMedianTimePast

int64_t node::BlockAssembler::nMedianTimePast

private

Definition at line 67 of file miner.h.

pblocktemplate

std::unique_ptr<CBlockTemplate> node::BlockAssembler::pblocktemplate

private

Definition at line 51 of file miner.h.

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The documentation for this class was generated from the following files:

• src/node/miner.h
• src/node/miner.cpp