Abstract view on the open txout dataset. More...

#include <coins.h>

Inheritance diagram for CCoinsView:

Public Member Functions
virtual bool	GetCoin (const COutPoint &outpoint, Coin &coin) const
	Retrieve the Coin (unspent transaction output) for a given outpoint. More...

virtual bool	HaveCoin (const COutPoint &outpoint) const
	Just check whether we have data for a given outpoint. More...

virtual uint256	GetBestBlock () const
	Retrieve the block hash whose state this CCoinsView currently represents. More...

virtual std::vector< uint256 >	GetHeadBlocks () const
	Retrieve the range of blocks that may have been only partially written. More...

virtual bool	BatchWrite (CCoinsMap &mapCoins, const uint256 &hashBlock, const uint256 &hashSaplingAnchor, CAnchorsSaplingMap &mapSaplingAnchors, CNullifiersMap &mapSaplingNullifiers)
	Do a bulk modification (multiple Coin changes + BestBlock change). More...

virtual CCoinsViewCursor *	Cursor () const
	Get a cursor to iterate over the whole state. More...

virtual	~CCoinsView ()
	As we use CCoinsViews polymorphically, have a virtual destructor. More...

virtual size_t	EstimateSize () const
	Estimate database size (0 if not implemented) More...

virtual bool	GetSaplingAnchorAt (const uint256 &rt, SaplingMerkleTree &tree) const
	Retrieve the tree (Sapling) at a particular anchored root in the chain. More...

virtual bool	GetNullifier (const uint256 &nullifier) const
	Determine whether a nullifier is spent or not. More...

virtual uint256	GetBestAnchor () const
	Get the current "tip" or the latest anchored tree root in the chain. More...

Detailed Description

Abstract view on the open txout dataset.

Definition at line 200 of file coins.h.

Constructor & Destructor Documentation

◆ ~CCoinsView()

virtual CCoinsView::~CCoinsView ( )

inlinevirtual

As we use CCoinsViews polymorphically, have a virtual destructor.

Definition at line 231 of file coins.h.

Member Function Documentation

◆ BatchWrite()

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

virtual

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

The passed mapCoins can be modified.

Reimplemented in CCoinsViewDB, CCoinsViewCache, and CCoinsViewBacked.

Definition at line 22 of file coins.cpp.

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◆ Cursor()

CCoinsViewCursor * CCoinsView::Cursor ( ) const

virtual

Get a cursor to iterate over the whole state.

Reimplemented in CCoinsViewDB, and CCoinsViewBacked.

Definition at line 20 of file coins.cpp.

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◆ EstimateSize()

virtual size_t CCoinsView::EstimateSize ( ) const

inlinevirtual

Estimate database size (0 if not implemented)

Reimplemented in CCoinsViewDB, and CCoinsViewBacked.

Definition at line 234 of file coins.h.

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◆ GetBestAnchor()

uint256 CCoinsView::GetBestAnchor ( ) const

virtual

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

Reimplemented in CCoinsViewDB, CCoinsViewCache, and CCoinsViewBacked.

Definition at line 31 of file coins.cpp.

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◆ GetBestBlock()

uint256 CCoinsView::GetBestBlock ( ) const

virtual

Retrieve the block hash whose state this CCoinsView currently represents.

Reimplemented in CCoinsViewDB, CCoinsViewCache, and CCoinsViewBacked.

Definition at line 18 of file coins.cpp.

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◆ GetCoin()

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

virtual

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

Reimplemented in CCoinsViewDB, CCoinsViewErrorCatcher, CCoinsViewCache, CCoinsViewBacked, and CCoinsViewMemPool.

Definition at line 16 of file coins.cpp.

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◆ GetHeadBlocks()

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

virtual

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 in CCoinsViewDB, and CCoinsViewBacked.

Definition at line 19 of file coins.cpp.

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◆ GetNullifier()

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

virtual

Determine whether a nullifier is spent or not.

Reimplemented in CCoinsViewCache, CCoinsViewBacked, CCoinsViewMemPool, and CCoinsViewDB.

Definition at line 30 of file coins.cpp.

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◆ GetSaplingAnchorAt()

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

virtual

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

Reimplemented in CCoinsViewDB, CCoinsViewCache, and CCoinsViewBacked.

Definition at line 29 of file coins.cpp.

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◆ HaveCoin()

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

virtual

Just check whether we have data for a given outpoint.

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

Reimplemented in CCoinsViewDB, CCoinsViewCache, CCoinsViewBacked, and CCoinsViewMemPool.

Definition at line 17 of file coins.cpp.

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

src/coins.h
src/coins.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ~CCoinsView()

Member Function Documentation

◆ BatchWrite()

◆ Cursor()

◆ EstimateSize()

◆ GetBestAnchor()

◆ GetBestBlock()

◆ GetCoin()

◆ GetHeadBlocks()

◆ GetNullifier()

◆ GetSaplingAnchorAt()

◆ HaveCoin()