Bitcoin ABC  0.22.15
P2P Digital Currency
Public Member Functions | List of all members
CCoinsView Class Reference

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

#include <coins.h>

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Public Member Functions

virtual bool GetCoin (const COutPoint &outpoint, Coin &coin) 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 BlockHash GetBestBlock () const
 Retrieve the block hash whose state this CCoinsView currently represents. More...
 
virtual std::vector< BlockHashGetHeadBlocks () const
 Retrieve the range of blocks that may have been only partially written. More...
 
virtual bool BatchWrite (CCoinsMap &mapCoins, const BlockHash &hashBlock)
 Do a bulk modification (multiple Coin changes + BestBlock change). More...
 
virtual CCoinsViewCursorCursor () const
 Get a cursor to iterate over the whole state. More...
 
virtual ~CCoinsView ()
 As we use CCoinsViews polymorphically, have a virtual destructor. More...
 
virtual size_t EstimateSize () const
 Estimate database size (0 if not implemented) More...
 

Detailed Description

Abstract view on the open txout dataset.

Definition at line 175 of file coins.h.

Constructor & Destructor Documentation

◆ ~CCoinsView()

virtual CCoinsView::~CCoinsView ( )
inlinevirtual

As we use CCoinsViews polymorphically, have a virtual destructor.

Definition at line 205 of file coins.h.

Member Function Documentation

◆ BatchWrite()

bool CCoinsView::BatchWrite ( CCoinsMap mapCoins,
const BlockHash hashBlock 
)
virtual

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

The passed mapCoins can be modified.

Reimplemented in CCoinsViewCache, CCoinsViewBacked, and CCoinsViewDB.

Definition at line 21 of file coins.cpp.

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◆ Cursor()

CCoinsViewCursor * CCoinsView::Cursor ( ) const
virtual

Get a cursor to iterate over the whole state.

Reimplemented in CCoinsViewCache, CCoinsViewBacked, and CCoinsViewDB.

Definition at line 24 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 208 of file coins.h.

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◆ GetBestBlock()

BlockHash CCoinsView::GetBestBlock ( ) const
virtual

Retrieve the block hash whose state this CCoinsView currently represents.

Reimplemented in CCoinsViewCache, CCoinsViewBacked, and CCoinsViewDB.

Definition at line 15 of file coins.cpp.

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◆ GetCoin()

bool CCoinsView::GetCoin ( const COutPoint outpoint,
Coin coin 
) const
virtual

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

Definition at line 12 of file coins.cpp.

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◆ GetHeadBlocks()

std::vector< BlockHash > 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 18 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.

Reimplemented in CCoinsViewCache, CCoinsViewBacked, and CCoinsViewDB.

Definition at line 27 of file coins.cpp.

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