CTxMemPoolEntry stores data about the corresponding transaction, as well as data about all in-mempool transactions that depend on the transaction ("descendant" transactions). More...

#include <mempool_entry.h>

Collaboration diagram for CTxMemPoolEntry:

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Public Types
typedef std::reference_wrapper< const CTxMemPoolEntry >	CTxMemPoolEntryRef

typedef std::set< CTxMemPoolEntryRef, CompareIteratorByHash >	Parents

typedef std::set< CTxMemPoolEntryRef, CompareIteratorByHash >	Children

Public Member Functions
	CTxMemPoolEntry (const CTransactionRef &tx, CAmount fee, int64_t time, unsigned int entry_height, bool spends_coinbase, int64_t sigops_cost, LockPoints lp)

const CTransaction &	GetTx () const

CTransactionRef	GetSharedTx () const

const CAmount &	GetFee () const

size_t	GetTxSize () const

size_t	GetTxWeight () const

std::chrono::seconds	GetTime () const

unsigned int	GetHeight () const

int64_t	GetSigOpCost () const

CAmount	GetModifiedFee () const

size_t	DynamicMemoryUsage () const

const LockPoints &	GetLockPoints () const

void	UpdateDescendantState (int64_t modifySize, CAmount modifyFee, int64_t modifyCount)

void	UpdateAncestorState (int64_t modifySize, CAmount modifyFee, int64_t modifyCount, int64_t modifySigOps)

void	UpdateModifiedFee (CAmount fee_diff)

void	UpdateLockPoints (const LockPoints &lp)

uint64_t	GetCountWithDescendants () const

uint64_t	GetSizeWithDescendants () const

CAmount	GetModFeesWithDescendants () const

bool	GetSpendsCoinbase () const

uint64_t	GetCountWithAncestors () const

uint64_t	GetSizeWithAncestors () const

CAmount	GetModFeesWithAncestors () const

int64_t	GetSigOpCostWithAncestors () const

const Parents &	GetMemPoolParentsConst () const

const Children &	GetMemPoolChildrenConst () const

Parents &	GetMemPoolParents () const

Children &	GetMemPoolChildren () const

Public Attributes
size_t	vTxHashesIdx
	Index in mempool's vTxHashes. More...

Epoch::Marker	m_epoch_marker
	epoch when last touched, useful for graph algorithms More...

Private Attributes
const CTransactionRef	tx

Parents	m_parents

Children	m_children

const CAmount	nFee
	Cached to avoid expensive parent-transaction lookups. More...

const size_t	nTxWeight
	... and avoid recomputing tx weight (also used for GetTxSize()) More...

const size_t	nUsageSize
	... and total memory usage More...

const int64_t	nTime
	Local time when entering the mempool. More...

const unsigned int	entryHeight
	Chain height when entering the mempool. More...

const bool	spendsCoinbase
	keep track of transactions that spend a coinbase More...

const int64_t	sigOpCost
	Total sigop cost. More...

CAmount	m_modified_fee
	Used for determining the priority of the transaction for mining in a block. More...

LockPoints	lockPoints
	Track the height and time at which tx was final. More...

uint64_t	nCountWithDescendants {1}
	number of descendant transactions More...

uint64_t	nSizeWithDescendants
	... and size More...

CAmount	nModFeesWithDescendants
	... and total fees (all including us) More...

uint64_t	nCountWithAncestors {1}

uint64_t	nSizeWithAncestors

CAmount	nModFeesWithAncestors

int64_t	nSigOpCostWithAncestors

Detailed Description

CTxMemPoolEntry stores data about the corresponding transaction, as well as data about all in-mempool transactions that depend on the transaction ("descendant" transactions).

When a new entry is added to the mempool, we update the descendant state (nCountWithDescendants, nSizeWithDescendants, and nModFeesWithDescendants) for all ancestors of the newly added transaction.

Definition at line 65 of file mempool_entry.h.

Member Typedef Documentation

◆ Children

typedef std::set<CTxMemPoolEntryRef, CompareIteratorByHash> CTxMemPoolEntry::Children

Definition at line 71 of file mempool_entry.h.

◆ CTxMemPoolEntryRef

typedef std::reference_wrapper<const CTxMemPoolEntry> CTxMemPoolEntry::CTxMemPoolEntryRef

Definition at line 68 of file mempool_entry.h.

◆ Parents

typedef std::set<CTxMemPoolEntryRef, CompareIteratorByHash> CTxMemPoolEntry::Parents

Definition at line 70 of file mempool_entry.h.

Constructor & Destructor Documentation

◆ CTxMemPoolEntry()

CTxMemPoolEntry::CTxMemPoolEntry	(	const CTransactionRef &	tx,
		CAmount	fee,
		int64_t	time,
		unsigned int	entry_height,
		bool	spends_coinbase,
		int64_t	sigops_cost,
		LockPoints	lp
	)

inline

Definition at line 101 of file mempool_entry.h.

Member Function Documentation

◆ DynamicMemoryUsage()

size_t CTxMemPoolEntry::DynamicMemoryUsage ( ) const

inline

Definition at line 133 of file mempool_entry.h.

◆ GetCountWithAncestors()

uint64_t CTxMemPoolEntry::GetCountWithAncestors ( ) const

inline

Definition at line 160 of file mempool_entry.h.

◆ GetCountWithDescendants()

uint64_t CTxMemPoolEntry::GetCountWithDescendants ( ) const

inline

Definition at line 154 of file mempool_entry.h.

◆ GetFee()

const CAmount& CTxMemPoolEntry::GetFee ( ) const

inline

Definition at line 123 of file mempool_entry.h.

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◆ GetHeight()

unsigned int CTxMemPoolEntry::GetHeight ( ) const

inline

Definition at line 130 of file mempool_entry.h.

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◆ GetLockPoints()

const LockPoints& CTxMemPoolEntry::GetLockPoints ( ) const

inline

Definition at line 134 of file mempool_entry.h.

◆ GetMemPoolChildren()

Children& CTxMemPoolEntry::GetMemPoolChildren ( ) const

inline

Definition at line 168 of file mempool_entry.h.

◆ GetMemPoolChildrenConst()

const Children& CTxMemPoolEntry::GetMemPoolChildrenConst ( ) const

inline

Definition at line 166 of file mempool_entry.h.

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◆ GetMemPoolParents()

Parents& CTxMemPoolEntry::GetMemPoolParents ( ) const

inline

Definition at line 167 of file mempool_entry.h.

◆ GetMemPoolParentsConst()

const Parents& CTxMemPoolEntry::GetMemPoolParentsConst ( ) const

inline

Definition at line 165 of file mempool_entry.h.

◆ GetModFeesWithAncestors()

CAmount CTxMemPoolEntry::GetModFeesWithAncestors ( ) const

inline

Definition at line 162 of file mempool_entry.h.

◆ GetModFeesWithDescendants()

CAmount CTxMemPoolEntry::GetModFeesWithDescendants ( ) const

inline

Definition at line 156 of file mempool_entry.h.

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◆ GetModifiedFee()

CAmount CTxMemPoolEntry::GetModifiedFee ( ) const

inline

Definition at line 132 of file mempool_entry.h.

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◆ GetSharedTx()

CTransactionRef CTxMemPoolEntry::GetSharedTx ( ) const

inline

Definition at line 122 of file mempool_entry.h.

◆ GetSigOpCost()

int64_t CTxMemPoolEntry::GetSigOpCost ( ) const

inline

Definition at line 131 of file mempool_entry.h.

◆ GetSigOpCostWithAncestors()

int64_t CTxMemPoolEntry::GetSigOpCostWithAncestors ( ) const

inline

Definition at line 163 of file mempool_entry.h.

◆ GetSizeWithAncestors()

uint64_t CTxMemPoolEntry::GetSizeWithAncestors ( ) const

inline

Definition at line 161 of file mempool_entry.h.

◆ GetSizeWithDescendants()

uint64_t CTxMemPoolEntry::GetSizeWithDescendants ( ) const

inline

Definition at line 155 of file mempool_entry.h.

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◆ GetSpendsCoinbase()

bool CTxMemPoolEntry::GetSpendsCoinbase ( ) const

inline

Definition at line 158 of file mempool_entry.h.

◆ GetTime()

std::chrono::seconds CTxMemPoolEntry::GetTime ( ) const

inline

Definition at line 129 of file mempool_entry.h.

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◆ GetTx()

const CTransaction& CTxMemPoolEntry::GetTx ( ) const

inline

Definition at line 121 of file mempool_entry.h.

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◆ GetTxSize()

size_t CTxMemPoolEntry::GetTxSize ( ) const

inline

Definition at line 124 of file mempool_entry.h.

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◆ GetTxWeight()

size_t CTxMemPoolEntry::GetTxWeight ( ) const

inline

Definition at line 128 of file mempool_entry.h.

◆ UpdateAncestorState()

void CTxMemPoolEntry::UpdateAncestorState	(	int64_t	modifySize,
		CAmount	modifyFee,
		int64_t	modifyCount,
		int64_t	modifySigOps
	)

Definition at line 377 of file txmempool.cpp.

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◆ UpdateDescendantState()

void CTxMemPoolEntry::UpdateDescendantState	(	int64_t	modifySize,
		CAmount	modifyFee,
		int64_t	modifyCount
	)

Definition at line 368 of file txmempool.cpp.

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◆ UpdateLockPoints()

void CTxMemPoolEntry::UpdateLockPoints ( const LockPoints & lp )

inline

Definition at line 149 of file mempool_entry.h.

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◆ UpdateModifiedFee()

void CTxMemPoolEntry::UpdateModifiedFee ( CAmount fee_diff )

inline

Definition at line 141 of file mempool_entry.h.

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Member Data Documentation

◆ entryHeight

const unsigned int CTxMemPoolEntry::entryHeight

private

Chain height when entering the mempool.

Definition at line 81 of file mempool_entry.h.

◆ lockPoints

LockPoints CTxMemPoolEntry::lockPoints

private

Track the height and time at which tx was final.

Definition at line 85 of file mempool_entry.h.

◆ m_children

Children CTxMemPoolEntry::m_children

mutableprivate

Definition at line 76 of file mempool_entry.h.

◆ m_epoch_marker

Epoch::Marker CTxMemPoolEntry::m_epoch_marker

mutable

epoch when last touched, useful for graph algorithms

Definition at line 171 of file mempool_entry.h.

◆ m_modified_fee

CAmount CTxMemPoolEntry::m_modified_fee

private

Used for determining the priority of the transaction for mining in a block.

Definition at line 84 of file mempool_entry.h.

◆ m_parents

Parents CTxMemPoolEntry::m_parents

mutableprivate

Definition at line 75 of file mempool_entry.h.

◆ nCountWithAncestors

uint64_t CTxMemPoolEntry::nCountWithAncestors {1}

private

Definition at line 95 of file mempool_entry.h.

◆ nCountWithDescendants

uint64_t CTxMemPoolEntry::nCountWithDescendants {1}

private

number of descendant transactions

Definition at line 90 of file mempool_entry.h.

◆ nFee

const CAmount CTxMemPoolEntry::nFee

private

Cached to avoid expensive parent-transaction lookups.

Definition at line 77 of file mempool_entry.h.

◆ nModFeesWithAncestors

CAmount CTxMemPoolEntry::nModFeesWithAncestors

private

Definition at line 97 of file mempool_entry.h.

◆ nModFeesWithDescendants

CAmount CTxMemPoolEntry::nModFeesWithDescendants

private

... and total fees (all including us)

Definition at line 92 of file mempool_entry.h.

◆ nSigOpCostWithAncestors

int64_t CTxMemPoolEntry::nSigOpCostWithAncestors

private

Definition at line 98 of file mempool_entry.h.

◆ nSizeWithAncestors

uint64_t CTxMemPoolEntry::nSizeWithAncestors

private

Definition at line 96 of file mempool_entry.h.

◆ nSizeWithDescendants

uint64_t CTxMemPoolEntry::nSizeWithDescendants

private

... and size

Definition at line 91 of file mempool_entry.h.

◆ nTime

const int64_t CTxMemPoolEntry::nTime

private

Local time when entering the mempool.

Definition at line 80 of file mempool_entry.h.

◆ nTxWeight

const size_t CTxMemPoolEntry::nTxWeight

private

... and avoid recomputing tx weight (also used for GetTxSize())

Definition at line 78 of file mempool_entry.h.

◆ nUsageSize

const size_t CTxMemPoolEntry::nUsageSize

private

... and total memory usage

Definition at line 79 of file mempool_entry.h.

◆ sigOpCost

const int64_t CTxMemPoolEntry::sigOpCost

private

Total sigop cost.

Definition at line 83 of file mempool_entry.h.

◆ spendsCoinbase

const bool CTxMemPoolEntry::spendsCoinbase

private

keep track of transactions that spend a coinbase

Definition at line 82 of file mempool_entry.h.

◆ tx

const CTransactionRef CTxMemPoolEntry::tx

private

Definition at line 74 of file mempool_entry.h.

◆ vTxHashesIdx

size_t CTxMemPoolEntry::vTxHashesIdx

mutable

Index in mempool's vTxHashes.

Definition at line 170 of file mempool_entry.h.

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

src/kernel/mempool_entry.h
src/txmempool.cpp

Public Types

Public Member Functions

Public Attributes

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Children

◆ CTxMemPoolEntryRef

◆ Parents

Constructor & Destructor Documentation

◆ CTxMemPoolEntry()

Member Function Documentation

◆ DynamicMemoryUsage()

◆ GetCountWithAncestors()

◆ GetCountWithDescendants()

◆ GetFee()

◆ GetHeight()

◆ GetLockPoints()

◆ GetMemPoolChildren()

◆ GetMemPoolChildrenConst()

◆ GetMemPoolParents()

◆ GetMemPoolParentsConst()

◆ GetModFeesWithAncestors()

◆ GetModFeesWithDescendants()

◆ GetModifiedFee()

◆ GetSharedTx()

◆ GetSigOpCost()

◆ GetSigOpCostWithAncestors()

◆ GetSizeWithAncestors()

◆ GetSizeWithDescendants()

◆ GetSpendsCoinbase()

◆ GetTime()

◆ GetTx()

◆ GetTxSize()

◆ GetTxWeight()

◆ UpdateAncestorState()

◆ UpdateDescendantState()

◆ UpdateLockPoints()

◆ UpdateModifiedFee()

Member Data Documentation

◆ entryHeight

◆ lockPoints

◆ m_children

◆ m_epoch_marker

◆ m_modified_fee

◆ m_parents

◆ nCountWithAncestors

◆ nCountWithDescendants

◆ nFee

◆ nModFeesWithAncestors

◆ nModFeesWithDescendants

◆ nSigOpCostWithAncestors

◆ nSizeWithAncestors

◆ nSizeWithDescendants

◆ nTime

◆ nTxWeight

◆ nUsageSize

◆ sigOpCost

◆ spendsCoinbase

◆ tx

◆ vTxHashesIdx