CCoinsView Class Reference

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

#include <coins.h>

Inheritance diagram for CCoinsView:

Public Member Functions
virtual bool	GetCoin (const COutPoint &outpoint, Coin &coin) const
	Retrieve the Coin (unspent transaction output) for a given outpoint.
virtual bool	HaveCoin (const COutPoint &outpoint) const
	Just check whether a given outpoint is unspent.
virtual BlockHash	GetBestBlock () const
	Retrieve the block hash whose state this CCoinsView currently represents.
virtual std::vector< BlockHash >	GetHeadBlocks () const
	Retrieve the range of blocks that may have been only partially written.
virtual bool	BatchWrite (CCoinsMap &mapCoins, const BlockHash &hashBlock, bool erase=true)
	Do a bulk modification (multiple Coin changes + BestBlock change).
virtual CCoinsViewCursor *	Cursor () const
	Get a cursor to iterate over the whole state.
virtual	~CCoinsView ()
	As we use CCoinsViews polymorphically, have a virtual destructor.
virtual size_t	EstimateSize () const
	Estimate database size (0 if not implemented)

Detailed Description

Abstract view on the open txout dataset.

Definition at line 163 of file coins.h.

Constructor & Destructor Documentation

~CCoinsView()

virtual CCoinsView::~CCoinsView ( )

inlinevirtual

As we use CCoinsViews polymorphically, have a virtual destructor.

Definition at line 194 of file coins.h.

Member Function Documentation

BatchWrite()

bool CCoinsView::BatchWrite ( CCoinsMap &  mapCoins, const BlockHash &  hashBlock, bool  erase = true  )

virtual

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

The passed mapCoins can be modified.

Reimplemented in CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 22 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 CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 26 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 197 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 CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 16 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 CCoinsViewBacked, CCoinsViewCache, CCoinsViewErrorCatcher, CCoinsViewDB, and CCoinsViewMemPool.

Definition at line 13 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 19 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 CCoinsViewBacked, CCoinsViewCache, and CCoinsViewDB.

Definition at line 29 of file coins.cpp.

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

• src/coins.h
• src/coins.cpp