CCoinsViewBacked Class Reference

CCoinsView backed by another CCoinsView. More...

#include <coins.h>

Inheritance diagram for CCoinsViewBacked:

Collaboration diagram for CCoinsViewBacked:

Public Member Functions
	CCoinsViewBacked (CCoinsView *viewIn)
bool	GetCoin (const COutPoint &outpoint, Coin &coin) const override
	Retrieve the Coin (unspent transaction output) for a given outpoint. More...
bool	HaveCoin (const COutPoint &outpoint) const override
	Just check whether we have data for a given outpoint. More...
uint256	GetBestBlock () const override
	Retrieve the block hash whose state this CCoinsView currently represents. More...
std::vector< uint256 >	GetHeadBlocks () const override
	Retrieve the range of blocks that may have been only partially written. More...
void	SetBackend (CCoinsView &viewIn)
CCoinsViewCursor *	Cursor () const override
	Get a cursor to iterate over the whole state. More...
size_t	EstimateSize () const override
	Estimate database size (0 if not implemented) More...
bool	BatchWrite (CCoinsMap &mapCoins, const uint256 &hashBlock, const uint256 &hashSaplingAnchor, CAnchorsSaplingMap &mapSaplingAnchors, CNullifiersMap &mapSaplingNullifiers) override
	Do a bulk modification (multiple Coin changes + BestBlock change). More...
bool	GetSaplingAnchorAt (const uint256 &rt, SaplingMerkleTree &tree) const override
	Retrieve the tree (Sapling) at a particular anchored root in the chain. More...
bool	GetNullifier (const uint256 &nullifier) const override
	Determine whether a nullifier is spent or not. More...
uint256	GetBestAnchor () const override
	Get the current "tip" or the latest anchored tree root in the chain. More...
Public Member Functions inherited from CCoinsView
virtual	~CCoinsView ()
	As we use CCoinsViews polymorphically, have a virtual destructor. More...

Protected Attributes
CCoinsView *	base

Detailed Description

CCoinsView backed by another CCoinsView.

Definition at line 249 of file coins.h.

Constructor & Destructor Documentation

CCoinsViewBacked()

CCoinsViewBacked::CCoinsViewBacked

(

CCoinsView *

viewIn

)

Definition at line 33 of file coins.cpp.

Member Function Documentation

BatchWrite()

bool CCoinsViewBacked::BatchWrite ( CCoinsMap &  mapCoins, const uint256 &  hashBlock, const uint256 &  hashSaplingAnchor, CAnchorsSaplingMap &  mapSaplingAnchors, CNullifiersMap &  mapSaplingNullifiers  )

overridevirtual

Do a bulk modification (multiple Coin changes + BestBlock change).

The passed mapCoins can be modified.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 42 of file coins.cpp.

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Cursor()

CCoinsViewCursor * CCoinsViewBacked::Cursor ( ) const

overridevirtual

Get a cursor to iterate over the whole state.

Reimplemented from CCoinsView.

Definition at line 39 of file coins.cpp.

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EstimateSize()

size_t CCoinsViewBacked::EstimateSize ( ) const

overridevirtual

Estimate database size (0 if not implemented)

Reimplemented from CCoinsView.

Definition at line 40 of file coins.cpp.

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GetBestAnchor()

uint256 CCoinsViewBacked::GetBestAnchor ( ) const

overridevirtual

Get the current "tip" or the latest anchored tree root in the chain.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 52 of file coins.cpp.

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GetBestBlock()

uint256 CCoinsViewBacked::GetBestBlock ( ) const

overridevirtual

Retrieve the block hash whose state this CCoinsView currently represents.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 36 of file coins.cpp.

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GetCoin()

bool CCoinsViewBacked::GetCoin ( const COutPoint &  outpoint, Coin &  coin  ) const

overridevirtual

Retrieve the Coin (unspent transaction output) for a given outpoint.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewErrorCatcher, CCoinsViewCache, and CCoinsViewMemPool.

Definition at line 34 of file coins.cpp.

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GetHeadBlocks()

std::vector< uint256 > CCoinsViewBacked::GetHeadBlocks ( ) const

overridevirtual

Retrieve the range of blocks that may have been only partially written.

If the database is in a consistent state, the result is the empty vector. Otherwise, a two-element vector is returned consisting of the new and the old block hash, in that order.

Reimplemented from CCoinsView.

Definition at line 37 of file coins.cpp.

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GetNullifier()

bool CCoinsViewBacked::GetNullifier ( const uint256 &  nullifier ) const

overridevirtual

Determine whether a nullifier is spent or not.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache, and CCoinsViewMemPool.

Definition at line 51 of file coins.cpp.

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GetSaplingAnchorAt()

bool CCoinsViewBacked::GetSaplingAnchorAt ( const uint256 &  rt, SaplingMerkleTree &  tree  ) const

overridevirtual

Retrieve the tree (Sapling) at a particular anchored root in the chain.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 50 of file coins.cpp.

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HaveCoin()

bool CCoinsViewBacked::HaveCoin ( const COutPoint &  outpoint ) const

overridevirtual

Just check whether we have data for a given outpoint.

This may (but cannot always) return true for spent outputs.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache, and CCoinsViewMemPool.

Definition at line 35 of file coins.cpp.

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SetBackend()

void CCoinsViewBacked::SetBackend

(

CCoinsView &

viewIn

)

Definition at line 38 of file coins.cpp.

Member Data Documentation

base

CCoinsView* CCoinsViewBacked::base

protected

Definition at line 252 of file coins.h.

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

• src/coins.h
• src/coins.cpp