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)
std::optional< Coin >	GetCoin (const COutPoint &outpoint) const override
	Retrieve the Coin (unspent transaction output) for a given outpoint. 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	SetBackend (CCoinsView &viewIn)
bool	BatchWrite (CoinsViewCacheCursor &cursor, const uint256 &hashBlock) 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. More...
size_t	EstimateSize () const override
	Estimate database size (0 if not implemented) More...
Public Member Functions inherited from CCoinsView
virtual std::optional< Coin >	GetCoin (const COutPoint &outpoint) const
	Retrieve the Coin (unspent transaction output) for a given outpoint. More...
virtual bool	HaveCoin (const COutPoint &outpoint) const
	Just check whether a given outpoint is unspent. 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 (CoinsViewCacheCursor &cursor, const uint256 &hashBlock)
	Do a bulk modification (multiple Coin changes + BestBlock change). More...
virtual std::unique_ptr< CCoinsViewCursor >	Cursor () const
	Get a cursor to iterate over the whole state. More...
virtual	~CCoinsView ()=default
	As we use CCoinsViews polymorphically, have a virtual destructor. More...
virtual size_t	EstimateSize () const
	Estimate database size (0 if not implemented) More...

Protected Attributes
CCoinsView *	base

Detailed Description

CCoinsView backed by another CCoinsView.

Definition at line 343 of file coins.h.

Constructor & Destructor Documentation

CCoinsViewBacked()

CCoinsViewBacked::CCoinsViewBacked

(

CCoinsView *

viewIn

)

Definition at line 27 of file coins.cpp.

Member Function Documentation

BatchWrite()

bool CCoinsViewBacked::BatchWrite ( CoinsViewCacheCursor &  cursor, const uint256 &  hashBlock  )

overridevirtual

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

The passed cursor is used to iterate through the coins.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 33 of file coins.cpp.

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Cursor()

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

overridevirtual

Get a cursor to iterate over the whole state.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 34 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 35 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 30 of file coins.cpp.

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GetCoin()

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

overridevirtual

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

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache, CCoinsViewErrorCatcher, and CCoinsViewMemPool.

Definition at line 28 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 31 of file coins.cpp.

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HaveCoin()

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

overridevirtual

Just check whether a given outpoint is unspent.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache, and CCoinsViewErrorCatcher.

Definition at line 29 of file coins.cpp.

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SetBackend()

void CCoinsViewBacked::SetBackend

(

CCoinsView &

viewIn

)

Definition at line 32 of file coins.cpp.

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Member Data Documentation

base

CCoinsView* CCoinsViewBacked::base

protected

Definition at line 346 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