CCoinsView backed by another CCoinsView. More...

#include <coins.h>

Inheritance diagram for CCoinsViewBacked:

Collaboration diagram for CCoinsViewBacked:

Public Member Functions
	CCoinsViewBacked (CCoinsView *in_view)

void	SetBackend (CCoinsView &in_view)

std::optional< Coin >	GetCoin (const COutPoint &outpoint) const override
	Retrieve the Coin (unspent transaction output) for a given outpoint. More...

std::optional< Coin >	PeekCoin (const COutPoint &outpoint) const override
	Retrieve the Coin (unspent transaction output) for a given outpoint, without caching results. More...

bool	HaveCoin (const COutPoint &outpoint) const override
	Just check whether a given outpoint is unspent. 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	BatchWrite (CoinsViewCacheCursor &cursor, const uint256 &block_hash) override
	Do a bulk modification (multiple Coin changes + BestBlock change). More...

std::unique_ptr< CCoinsViewCursor >	Cursor () const override
	Get a cursor to iterate over the whole state. Implementations may return nullptr. More...

size_t	EstimateSize () const override
	Estimate database size. More...

Public Member Functions inherited from CCoinsView
virtual	~CCoinsView ()=default
	As we use CCoinsViews polymorphically, have a virtual destructor. More...

virtual std::optional< Coin >	GetCoin (const COutPoint &outpoint) const =0
	Retrieve the Coin (unspent transaction output) for a given outpoint. More...

virtual std::optional< Coin >	PeekCoin (const COutPoint &outpoint) const =0
	Retrieve the Coin (unspent transaction output) for a given outpoint, without caching results. More...

virtual bool	HaveCoin (const COutPoint &outpoint) const =0
	Just check whether a given outpoint is unspent. More...

virtual uint256	GetBestBlock () const =0
	Retrieve the block hash whose state this CCoinsView currently represents. More...

virtual std::vector< uint256 >	GetHeadBlocks () const =0
	Retrieve the range of blocks that may have been only partially written. More...

virtual void	BatchWrite (CoinsViewCacheCursor &cursor, const uint256 &block_hash)=0
	Do a bulk modification (multiple Coin changes + BestBlock change). More...

virtual std::unique_ptr< CCoinsViewCursor >	Cursor () const =0
	Get a cursor to iterate over the whole state. Implementations may return nullptr. More...

virtual size_t	EstimateSize () const =0
	Estimate database size. More...

Protected Attributes
CCoinsView *	base

Detailed Description

CCoinsView backed by another CCoinsView.

Definition at line 371 of file coins.h.

Constructor & Destructor Documentation

◆ CCoinsViewBacked()

CCoinsViewBacked::CCoinsViewBacked ( CCoinsView * in_view )

inlineexplicit

Definition at line 377 of file coins.h.

Member Function Documentation

◆ BatchWrite()

void CCoinsViewBacked::BatchWrite	(	CoinsViewCacheCursor &	cursor,
		const uint256 &	block_hash
	)

inlineoverridevirtual

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

The passed cursor is used to iterate through the coins.

Implements CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 386 of file coins.h.

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◆ Cursor()

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

inlineoverridevirtual

Get a cursor to iterate over the whole state. Implementations may return nullptr.

Implements CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 387 of file coins.h.

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◆ EstimateSize()

size_t CCoinsViewBacked::EstimateSize ( ) const

inlineoverridevirtual

Estimate database size.

Implements CCoinsView.

Definition at line 388 of file coins.h.

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◆ GetBestBlock()

uint256 CCoinsViewBacked::GetBestBlock ( ) const

inlineoverridevirtual

Retrieve the block hash whose state this CCoinsView currently represents.

Implements CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 384 of file coins.h.

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◆ GetCoin()

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

inlineoverridevirtual

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

May populate the cache. Use PeekCoin() to perform a non-caching lookup.

Implements CCoinsView.

Reimplemented in CCoinsViewCache, CCoinsViewErrorCatcher, and CCoinsViewMemPool.

Definition at line 381 of file coins.h.

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◆ GetHeadBlocks()

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

inlineoverridevirtual

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.

Implements CCoinsView.

Definition at line 385 of file coins.h.

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◆ HaveCoin()

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

inlineoverridevirtual

Just check whether a given outpoint is unspent.

May populate the cache. Use PeekCoin() to perform a non-caching lookup.

Implements CCoinsView.

Reimplemented in CCoinsViewCache, and CCoinsViewErrorCatcher.

Definition at line 383 of file coins.h.

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◆ PeekCoin()

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

inlineoverridevirtual

Retrieve the Coin (unspent transaction output) for a given outpoint, without caching results.

Does not populate the cache. Use GetCoin() to cache the result.

Implements CCoinsView.

Reimplemented in CCoinsViewCache, and CCoinsViewErrorCatcher.

Definition at line 382 of file coins.h.

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◆ SetBackend()

void CCoinsViewBacked::SetBackend ( CCoinsView & in_view )

inline

Definition at line 379 of file coins.h.

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Member Data Documentation

◆ base

CCoinsView* CCoinsViewBacked::base

protected

Definition at line 374 of file coins.h.

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

src/coins.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CCoinsViewBacked()

Member Function Documentation

◆ BatchWrite()

◆ Cursor()

◆ EstimateSize()

◆ GetBestBlock()

◆ GetCoin()

◆ GetHeadBlocks()

◆ HaveCoin()

◆ PeekCoin()

◆ SetBackend()

Member Data Documentation

◆ base