Bitcoin Core  0.15.99
P2P Digital Currency
Public Member Functions | Protected Attributes | List of all members
CCoinsViewBacked Class Reference

CCoinsView backed by another CCoinsView. More...

#include <coins.h>

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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< uint256GetHeadBlocks () 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...
 
CCoinsViewCursorCursor () 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

CCoinsViewbase
 

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 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.


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