CCoinsView that adds a memory cache for transactions to another CCoinsView. More...

#include <coins.h>

Inheritance diagram for CCoinsViewCache:

Collaboration diagram for CCoinsViewCache:

Public Member Functions
	CCoinsViewCache (CCoinsView &baseIn, bool fDummy=false)

bool	GetCoins (const uint256 &txid, CCoins &coins)

bool	SetCoins (const uint256 &txid, const CCoins &coins)

bool	HaveCoins (const uint256 &txid)

uint256	GetBestBlock ()

bool	SetBestBlock (const uint256 &hashBlock)

bool	BatchWrite (const std::map< uint256, CCoins > &mapCoins, const uint256 &hashBlock)

CCoins &	GetCoins (const uint256 &txid)

bool	Flush ()

unsigned int	GetCacheSize ()

int64_t	GetValueIn (const CTransaction &tx)
	Amount of bitcoins coming in to a transaction Note that lightweight clients may not know anything besides the hash of previous transactions, so may not be able to calculate this. More...

bool	HaveInputs (const CTransaction &tx)

double	GetPriority (const CTransaction &tx, int nHeight)

const CTxOut &	GetOutputFor (const CTxIn &input)

Public Member Functions inherited from CCoinsViewBacked
	CCoinsViewBacked (CCoinsView &viewIn)

void	SetBackend (CCoinsView &viewIn)

bool	GetStats (CCoinsStats &stats)

Public Member Functions inherited from CCoinsView
virtual	~CCoinsView ()

Protected Attributes
uint256	hashBlock

std::map< uint256, CCoins >	cacheCoins

Protected Attributes inherited from CCoinsViewBacked
CCoinsView *	base

Private Member Functions
std::map< uint256, CCoins >::iterator	FetchCoins (const uint256 &txid)

Detailed Description

CCoinsView that adds a memory cache for transactions to another CCoinsView.

Definition at line 308 of file coins.h.

Constructor & Destructor Documentation

CCoinsViewCache::CCoinsViewCache	(	CCoinsView &	baseIn,
		bool	fDummy = `false`
	)

Definition at line 72 of file coins.cpp.

Member Function Documentation

bool CCoinsViewCache::BatchWrite	(	const std::map< uint256, CCoins > &	mapCoins,
		const uint256 &	hashBlock
	)

virtual

Reimplemented from CCoinsViewBacked.

Definition at line 124 of file coins.cpp.

References cacheCoins, and hashBlock.

std::map< uint256, CCoins >::iterator CCoinsViewCache::FetchCoins ( const uint256 & txid )

private

Definition at line 86 of file coins.cpp.

References CCoinsViewBacked::base, cacheCoins, CCoinsView::GetCoins(), and CCoins::swap().

Referenced by GetCoins(), and HaveCoins().

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bool CCoinsViewCache::Flush ( )

Definition at line 131 of file coins.cpp.

References CCoinsViewBacked::base, CCoinsView::BatchWrite(), cacheCoins, and hashBlock.

Referenced by ConnectTip(), DisconnectTip(), Shutdown(), and WriteChainState().

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uint256 CCoinsViewCache::GetBestBlock ( )

virtual

Reimplemented from CCoinsViewBacked.

Definition at line 113 of file coins.cpp.

References CCoinsViewBacked::base, CCoinsView::GetBestBlock(), and hashBlock.

Referenced by AcceptToMemoryPool(), CheckInputs(), ConnectBlock(), DisconnectBlock(), gettxout(), and LoadBlockIndexDB().

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unsigned int CCoinsViewCache::GetCacheSize ( )

Definition at line 138 of file coins.cpp.

References cacheCoins.

Referenced by VerifyDB(), and WriteChainState().

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bool CCoinsViewCache::GetCoins	(	const uint256 &	txid,
		CCoins &	coins
	)

virtual

Reimplemented from CCoinsViewBacked.

Definition at line 74 of file coins.cpp.

References CCoinsViewBacked::base, cacheCoins, and CCoinsView::GetCoins().

Referenced by CTxMemPool::check(), CheckInputs(), ConnectBlock(), CreateNewBlock(), DisconnectBlock(), GetOutputFor(), GetPriority(), GetTransaction(), gettxout(), HaveInputs(), sendrawtransaction(), signrawtransaction(), TransactionDesc::toHTML(), and UpdateCoins().

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CCoins & CCoinsViewCache::GetCoins ( const uint256 & txid )

Definition at line 98 of file coins.cpp.

References cacheCoins, and FetchCoins().

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const CTxOut & CCoinsViewCache::GetOutputFor ( const CTxIn & input )

Definition at line 142 of file coins.cpp.

References GetCoins(), COutPoint::hash, CCoins::IsAvailable(), COutPoint::n, CTxIn::prevout, and CCoins::vout.

Referenced by AreInputsStandard(), GetP2SHSigOpCount(), and GetValueIn().

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double CCoinsViewCache::GetPriority	(	const CTransaction &	tx,
		int	nHeight
	)

Definition at line 182 of file coins.cpp.

References CTransaction::ComputePriority(), GetCoins(), COutPoint::hash, CCoins::IsAvailable(), CTransaction::IsCoinBase(), COutPoint::n, CCoins::nHeight, CTxIn::prevout, CTransaction::vin, and CCoins::vout.

Referenced by AcceptToMemoryPool().

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int64_t CCoinsViewCache::GetValueIn ( const CTransaction & tx )

Amount of bitcoins coming in to a transaction Note that lightweight clients may not know anything besides the hash of previous transactions, so may not be able to calculate this.

Parameters

[in] tx transaction for which we are checking input total