CCoinsView Class Reference

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

#include <coins.h>

Inheritance diagram for CCoinsView:

Public Member Functions
virtual std::optional< Coin >	GetCoin (const COutPoint &outpoint) const
virtual std::optional< Coin >	PeekCoin (const COutPoint &outpoint) const
virtual bool	HaveCoin (const COutPoint &outpoint) const
virtual uint256	GetBestBlock () const
	Retrieve the block hash whose state this CCoinsView currently represents.
virtual std::vector< uint256 >	GetHeadBlocks () const
virtual void	BatchWrite (CoinsViewCacheCursor &cursor, const uint256 &hashBlock)
virtual std::unique_ptr< CCoinsViewCursor >	Cursor () const
	Get a cursor to iterate over the whole state.
virtual	~CCoinsView ()=default
	As we use CCoinsViews polymorphically, have a virtual destructor.
virtual size_t	EstimateSize () const
	Estimate database size (0 if not implemented).

Detailed Description

Abstract view on the open txout dataset.

Definition at line 307 of file coins.h.

Constructor & Destructor Documentation

~CCoinsView()

virtual CCoinsView::~CCoinsView ( )

virtualdefault

As we use CCoinsViews polymorphically, have a virtual destructor.

Member Function Documentation

BatchWrite()

void CCoinsView::BatchWrite ( CoinsViewCacheCursor & cursor, const uint256 & hashBlock )

virtual

Do a bulk modification (multiple Coin changes + BestBlock change). The passed cursor is used to iterate through the coins.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 21 of file coins.cpp.

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Cursor()

std::unique_ptr< CCoinsViewCursor > CCoinsView::Cursor ( ) const

virtual

Get a cursor to iterate over the whole state.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 26 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 CCoinsViewBacked, and CCoinsViewDB.

Definition at line 342 of file coins.h.

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GetBestBlock()

uint256 CCoinsView::GetBestBlock ( ) const

virtual

Retrieve the block hash whose state this CCoinsView currently represents.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 19 of file coins.cpp.

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GetCoin()

std::optional< Coin > CCoinsView::GetCoin ( const COutPoint & outpoint ) const

virtual

Retrieve the Coin (unspent transaction output) for a given outpoint. May populate the cache. Use PeekCoin() to perform a non-caching lookup.

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

Definition at line 17 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 CCoinsViewBacked, and CCoinsViewDB.

Definition at line 20 of file coins.cpp.

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HaveCoin()

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

virtual

Just check whether a given outpoint is unspent. May populate the cache. Use PeekCoin() to perform a non-caching lookup.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, CCoinsViewDB, and CCoinsViewErrorCatcher.

Definition at line 28 of file coins.cpp.

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PeekCoin()

std::optional< Coin > CCoinsView::PeekCoin ( const COutPoint & outpoint ) const

virtual

Retrieve the Coin (unspent transaction output) for a given outpoint, without caching results. Does not populate the cache. Use GetCoin() to cache the result.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, and CCoinsViewErrorCatcher.

Definition at line 18 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