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

#include <miner.h>

Collaboration diagram for BlockAssembler:

Classes
struct	Options

Public Member Functions
	BlockAssembler (const CChainParams &params)

	BlockAssembler (const CChainParams &params, const Options &options)

std::unique_ptr< CBlockTemplate >	CreateNewBlock (const CScript &scriptPubKeyIn, bool fMineWitnessTx=true)
	Construct a new block template with coinbase to scriptPubKeyIn. More...

Private Member Functions
void	resetBlock ()
	Clear the block's state and prepare for assembling a new block. More...

void	AddToBlock (CTxMemPool::txiter iter)
	Add a tx to the block. More...

void	addPackageTxs (int &nPackagesSelected, int &nDescendantsUpdated)
	Add transactions based on feerate including unconfirmed ancestors Increments nPackagesSelected / nDescendantsUpdated with corresponding statistics from the package selection (for logging statistics). More...

void	onlyUnconfirmed (CTxMemPool::setEntries &testSet)
	Remove confirmed (inBlock) entries from given set. More...

bool	TestPackage (uint64_t packageSize, int64_t packageSigOpsCost) const
	Test if a new package would "fit" in the block. More...

bool	TestPackageTransactions (const CTxMemPool::setEntries &package)
	Perform checks on each transaction in a package: locktime, premature-witness, serialized size (if necessary) These checks should always succeed, and they're here only as an extra check in case of suboptimal node configuration. More...

bool	SkipMapTxEntry (CTxMemPool::txiter it, indexed_modified_transaction_set &mapModifiedTx, CTxMemPool::setEntries &failedTx)
	Return true if given transaction from mapTx has already been evaluated, or if the transaction's cached data in mapTx is incorrect. More...

void	SortForBlock (const CTxMemPool::setEntries &package, CTxMemPool::txiter entry, std::vector< CTxMemPool::txiter > &sortedEntries)
	Sort the package in an order that is valid to appear in a block. More...

int	UpdatePackagesForAdded (const CTxMemPool::setEntries &alreadyAdded, indexed_modified_transaction_set &mapModifiedTx)
	Add descendants of given transactions to mapModifiedTx with ancestor state updated assuming given transactions are inBlock. More...

Private Attributes
std::unique_ptr< CBlockTemplate >	pblocktemplate

CBlock *	pblock

bool	fIncludeWitness

unsigned int	nBlockMaxWeight

CFeeRate	blockMinFeeRate

uint64_t	nBlockWeight

uint64_t	nBlockTx

uint64_t	nBlockSigOpsCost

CAmount	nFees

CTxMemPool::setEntries	inBlock

int	nHeight

int64_t	nLockTimeCutoff

const CChainParams &	chainparams

Detailed Description

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

Definition at line 133 of file miner.h.

Constructor & Destructor Documentation

◆ BlockAssembler() [1/2]

BlockAssembler::BlockAssembler ( const CChainParams & params )

explicit

Definition at line 105 of file miner.cpp.

◆ BlockAssembler() [2/2]

BlockAssembler::BlockAssembler	(	const CChainParams &	params,
		const Options &	options
	)

Definition at line 80 of file miner.cpp.

Here is the call graph for this function:

Member Function Documentation

◆ addPackageTxs()

void BlockAssembler::addPackageTxs	(	int &	nPackagesSelected,
		int &	nDescendantsUpdated
	)

private

Add transactions based on feerate including unconfirmed ancestors Increments nPackagesSelected / nDescendantsUpdated with corresponding statistics from the package selection (for logging statistics).

Definition at line 325 of file miner.cpp.

Here is the call graph for this function:

◆ AddToBlock()

void BlockAssembler::AddToBlock ( CTxMemPool::txiter iter )

private

Add a tx to the block.

Definition at line 243 of file miner.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ CreateNewBlock()

std::unique_ptr< CBlockTemplate > BlockAssembler::CreateNewBlock	(	const CScript &	scriptPubKeyIn,
		bool	fMineWitnessTx = `true`
	)

Construct a new block template with coinbase to scriptPubKeyIn.

Definition at line 121 of file miner.cpp.

Here is the call graph for this function:

◆ onlyUnconfirmed()

void BlockAssembler::onlyUnconfirmed ( CTxMemPool::setEntries & testSet )

private

Remove confirmed (inBlock) entries from given set.

Definition at line 205 of file miner.cpp.

Here is the caller graph for this function:

◆ resetBlock()

void BlockAssembler::resetBlock ( )

private

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

Definition at line 107 of file miner.cpp.

Here is the caller graph for this function:

◆ SkipMapTxEntry()

bool BlockAssembler::SkipMapTxEntry	(	CTxMemPool::txiter	it,
		indexed_modified_transaction_set &	mapModifiedTx,
		CTxMemPool::setEntries &	failedTx
	)

private

Return true if given transaction from mapTx has already been evaluated, or if the transaction's cached data in mapTx is incorrect.

Definition at line 298 of file miner.cpp.

Here is the caller graph for this function:

◆ SortForBlock()

void BlockAssembler::SortForBlock	(	const CTxMemPool::setEntries &	package,
		CTxMemPool::txiter	entry,
		std::vector< CTxMemPool::txiter > &	sortedEntries
	)

private

Sort the package in an order that is valid to appear in a block.

Definition at line 304 of file miner.cpp.

Here is the caller graph for this function:

◆ TestPackage()

bool BlockAssembler::TestPackage	(	uint64_t	packageSize,
		int64_t	packageSigOpsCost
	)		const

private

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

Definition at line 218 of file miner.cpp.

Here is the caller graph for this function:

◆ TestPackageTransactions()

bool BlockAssembler::TestPackageTransactions ( const CTxMemPool::setEntries & package )

private

Perform checks on each transaction in a package: locktime, premature-witness, serialized size (if necessary) These checks should always succeed, and they're here only as an extra check in case of suboptimal node configuration.

Definition at line 232 of file miner.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ UpdatePackagesForAdded()

int BlockAssembler::UpdatePackagesForAdded	(	const CTxMemPool::setEntries &	alreadyAdded,
		indexed_modified_transaction_set &	mapModifiedTx
	)

private

Add descendants of given transactions to mapModifiedTx with ancestor state updated assuming given transactions are inBlock.

Returns number of updated descendants.

Definition at line 262 of file miner.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

◆ blockMinFeeRate

CFeeRate BlockAssembler::blockMinFeeRate

private

Definition at line 144 of file miner.h.

◆ chainparams

const CChainParams& BlockAssembler::chainparams

private

Definition at line 156 of file miner.h.

◆ fIncludeWitness

bool BlockAssembler::fIncludeWitness

private

Definition at line 142 of file miner.h.

◆ inBlock

CTxMemPool::setEntries BlockAssembler::inBlock

private

Definition at line 151 of file miner.h.

◆ nBlockMaxWeight

unsigned int BlockAssembler::nBlockMaxWeight

private

Definition at line 143 of file miner.h.

◆ nBlockSigOpsCost

uint64_t BlockAssembler::nBlockSigOpsCost

private

Definition at line 149 of file miner.h.

◆ nBlockTx

uint64_t BlockAssembler::nBlockTx

private

Definition at line 148 of file miner.h.

◆ nBlockWeight

uint64_t BlockAssembler::nBlockWeight

private

Definition at line 147 of file miner.h.

◆ nFees

CAmount BlockAssembler::nFees

private

Definition at line 150 of file miner.h.

◆ nHeight

int BlockAssembler::nHeight

private

Definition at line 154 of file miner.h.

◆ nLockTimeCutoff

int64_t BlockAssembler::nLockTimeCutoff

private

Definition at line 155 of file miner.h.

◆ pblock

CBlock* BlockAssembler::pblock

private

Definition at line 139 of file miner.h.

◆ pblocktemplate

std::unique_ptr<CBlockTemplate> BlockAssembler::pblocktemplate

private

Definition at line 137 of file miner.h.

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

src/miner.h
src/miner.cpp

Classes

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ BlockAssembler() [1/2]

◆ BlockAssembler() [2/2]

Member Function Documentation

◆ addPackageTxs()

◆ AddToBlock()

◆ CreateNewBlock()

◆ onlyUnconfirmed()

◆ resetBlock()

◆ SkipMapTxEntry()

◆ SortForBlock()

◆ TestPackage()

◆ TestPackageTransactions()

◆ UpdatePackagesForAdded()

Member Data Documentation

◆ blockMinFeeRate

◆ chainparams

◆ fIncludeWitness

◆ inBlock

◆ nBlockMaxWeight

◆ nBlockSigOpsCost

◆ nBlockTx

◆ nBlockWeight

◆ nFees

◆ nHeight

◆ nLockTimeCutoff

◆ pblock

◆ pblocktemplate