catapult::cache::MemoryUtCacheView Class Reference

A read only view on top of unconfirmed transactions cache. More...

Collaboration diagram for catapult::cache::MemoryUtCacheView:

Public Member Functions
	MemoryUtCacheView (uint64_t maxResponseSize, const TransactionDataContainer &transactionDataContainer, const IdLookup &idLookup, utils::SpinReaderWriterLock::ReaderLockGuard &&readLock)
size_t	size () const
	Returns the number of unconfirmed transactions in the cache. More...
bool	contains (const Hash256 &hash) const
	Returns true if the cache contains an unconfirmed transaction with associated hash, false otherwise. More...
void	forEach (const TransactionInfoConsumer &consumer) const
	Calls consumer with all transaction infos until all are consumed or false is returned by consumer. More...
model::ShortHashRange	shortHashes () const
UnknownTransactions	unknownTransactions (BlockFeeMultiplier minFeeMultiplier, const utils::ShortHashesSet &knownShortHashes) const

Private Types
using	UnknownTransactions = std::vector< std::shared_ptr< const model::Transaction > >
using	IdLookup = std::unordered_map< Hash256, size_t, utils::ArrayHasher< Hash256 > >
using	TransactionInfoConsumer = predicate< const model::TransactionInfo & >

Private Attributes
uint64_t	m_maxResponseSize
const TransactionDataContainer &	m_transactionDataContainer
const IdLookup &	m_idLookup
utils::SpinReaderWriterLock::ReaderLockGuard	m_readLock

Detailed Description

A read only view on top of unconfirmed transactions cache.

Member Typedef Documentation

IdLookup

using catapult::cache::MemoryUtCacheView::IdLookup = std::unordered_map<Hash256, size_t, utils::ArrayHasher<Hash256> >

private

TransactionInfoConsumer

using catapult::cache::MemoryUtCacheView::TransactionInfoConsumer = predicate<const model::TransactionInfo&>

private

UnknownTransactions

using catapult::cache::MemoryUtCacheView::UnknownTransactions = std::vector<std::shared_ptr<const model::Transaction> >

private

Constructor & Destructor Documentation

MemoryUtCacheView()

catapult::cache::MemoryUtCacheView::MemoryUtCacheView ( uint64_t  maxResponseSize, const TransactionDataContainer &  transactionDataContainer, const IdLookup &  idLookup, utils::SpinReaderWriterLock::ReaderLockGuard &&  readLock  )

explicit

Creates a view around a maximum response size (maxResponseSize), a transaction data container (transactionDataContainer) and an id lookup (idLookup) with lock context readLock.

Member Function Documentation

contains()

bool catapult::cache::MemoryUtCacheView::contains

(

const Hash256 &

hash

)

const

Returns true if the cache contains an unconfirmed transaction with associated hash, false otherwise.

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forEach()

void catapult::cache::MemoryUtCacheView::forEach

(

const TransactionInfoConsumer &

consumer

)

const

Calls consumer with all transaction infos until all are consumed or false is returned by consumer.

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shortHashes()

model::ShortHashRange catapult::cache::MemoryUtCacheView::shortHashes

(

)

const

Gets a range of short hashes of all transactions in the cache. A short hash consists of the first 4 bytes of the complete hash.

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size()

size_t catapult::cache::MemoryUtCacheView::size

(

)

const

Returns the number of unconfirmed transactions in the cache.

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unknownTransactions()

MemoryUtCacheView::UnknownTransactions catapult::cache::MemoryUtCacheView::unknownTransactions	(	BlockFeeMultiplier	minFeeMultiplier,
		const utils::ShortHashesSet &	knownShortHashes
	)		const

Gets a vector of all transactions in the cache that have a fee multiplier at least minFeeMultiplier and do not have a short hash in knownShortHashes.

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Member Data Documentation

m_idLookup

const IdLookup& catapult::cache::MemoryUtCacheView::m_idLookup

private

m_maxResponseSize

uint64_t catapult::cache::MemoryUtCacheView::m_maxResponseSize

private

m_readLock

utils::SpinReaderWriterLock::ReaderLockGuard catapult::cache::MemoryUtCacheView::m_readLock

private

m_transactionDataContainer

const TransactionDataContainer& catapult::cache::MemoryUtCacheView::m_transactionDataContainer

private

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

• MemoryUtCache.h
• MemoryUtCache.cpp