This is a minimally invasive approach to shutdown on LevelDB read errors from the chainstate, while keeping user interface out of the common library, which is shared between bitcoind, and bitcoin-qt and non-server tools. More...

#include <coins.h>

Inheritance diagram for CCoinsViewErrorCatcher:

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Public Member Functions
	CCoinsViewErrorCatcher (CCoinsView *view)

void	AddReadErrCallback (std::function< void()> f)

bool	GetCoin (const COutPoint &outpoint, Coin &coin) const override
	Retrieve the Coin (unspent transaction output) for a given outpoint.

Public Member Functions inherited from CCoinsViewBacked
	CCoinsViewBacked (CCoinsView *viewIn)

bool	HaveCoin (const COutPoint &outpoint) const override
	Just check whether a given outpoint is unspent.

BlockHash	GetBestBlock () const override
	Retrieve the block hash whose state this CCoinsView currently represents.

std::vector< BlockHash >	GetHeadBlocks () const override
	Retrieve the range of blocks that may have been only partially written.

void	SetBackend (CCoinsView &viewIn)

bool	BatchWrite (CCoinsMap &mapCoins, const BlockHash &hashBlock, bool erase=true) override
	Do a bulk modification (multiple Coin changes + BestBlock change).

CCoinsViewCursor *	Cursor () const override
	Get a cursor to iterate over the whole state.

size_t	EstimateSize () const override
	Estimate database size (0 if not implemented)

Public Member Functions inherited from CCoinsView
virtual	~CCoinsView ()
	As we use CCoinsViews polymorphically, have a virtual destructor.

Private Attributes
std::vector< std::function< void()> >	m_err_callbacks
	A list of callbacks to execute upon leveldb read error.

Additional Inherited Members
Protected Attributes inherited from CCoinsViewBacked
CCoinsView *	base

Detailed Description

This is a minimally invasive approach to shutdown on LevelDB read errors from the chainstate, while keeping user interface out of the common library, which is shared between bitcoind, and bitcoin-qt and non-server tools.

Writes do not need similar protection, as failure to write is handled by the caller.

Definition at line 374 of file coins.h.

Constructor & Destructor Documentation

◆ CCoinsViewErrorCatcher()

CCoinsViewErrorCatcher::CCoinsViewErrorCatcher ( CCoinsView * view )

inlineexplicit

Definition at line 376 of file coins.h.

Member Function Documentation

◆ AddReadErrCallback()

void CCoinsViewErrorCatcher::AddReadErrCallback ( std::function< void()> f )

inline

Definition at line 379 of file coins.h.

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◆ GetCoin()

bool CCoinsViewErrorCatcher::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 CCoinsViewBacked.

Definition at line 408 of file coins.cpp.

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Member Data Documentation

◆ m_err_callbacks

std::vector<std::function<void()> > CCoinsViewErrorCatcher::m_err_callbacks

private

A list of callbacks to execute upon leveldb read error.

Definition at line 389 of file coins.h.

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

src/coins.h
src/coins.cpp

Public Member Functions

Private Attributes

Additional Inherited Members