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 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 (CCoinsMap &mapCoins, const uint256 &hashBlock) override
	Do a bulk modification (multiple Coin changes + BestBlock change). More...
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	~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 182 of file coins.h.

Constructor & Destructor Documentation

CCoinsViewBacked::CCoinsViewBacked

(

CCoinsView *

viewIn

)

Definition at line 25 of file coins.cpp.

Member Function Documentation

bool CCoinsViewBacked::BatchWrite ( CCoinsMap &  mapCoins, const uint256 &  hashBlock  )

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 31 of file coins.cpp.

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CCoinsViewCursor * CCoinsViewBacked::Cursor ( ) const

overridevirtual

Get a cursor to iterate over the whole state.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 32 of file coins.cpp.

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size_t CCoinsViewBacked::EstimateSize ( ) const

overridevirtual

Estimate database size (0 if not implemented)

Reimplemented from CCoinsView.

Definition at line 33 of file coins.cpp.

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uint256 CCoinsViewBacked::GetBestBlock ( ) const

overridevirtual

Retrieve the block hash whose state this CCoinsView currently represents.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewCache.

Definition at line 28 of file coins.cpp.

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

overridevirtual

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

Returns true only when an unspent coin was found, which is returned in coin. When false is returned, coin's value is unspecified.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewMemPool, CCoinsViewCache, and CCoinsViewErrorCatcher.

Definition at line 26 of file coins.cpp.

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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 29 of file coins.cpp.

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

overridevirtual

Just check whether a given outpoint is unspent.

Reimplemented from CCoinsView.

Reimplemented in CCoinsViewMemPool, and CCoinsViewCache.

Definition at line 27 of file coins.cpp.

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void CCoinsViewBacked::SetBackend

(

CCoinsView &

viewIn

)

Definition at line 30 of file coins.cpp.

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Member Data Documentation

CCoinsView* CCoinsViewBacked::base

protected

Definition at line 185 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