The block chain is a tree shaped structure starting with the genesis block at the root, with each block potentially having multiple candidates to be the next block. More...

#include <main.h>

Inheritance diagram for CBlockIndex:

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Collaboration diagram for CBlockIndex:

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Public Types
enum	{ nMedianTimeSpan =11 }

Public Member Functions
	CBlockIndex ()

	CBlockIndex (CBlockHeader &block)

CDiskBlockPos	GetBlockPos () const

CDiskBlockPos	GetUndoPos () const

CBlockHeader	GetBlockHeader () const

uint256	GetBlockHash () const

int64	GetBlockTime () const

CBigNum	GetBlockWork () const

bool	IsInMainChain () const

bool	CheckIndex () const

int64	GetMedianTimePast () const

int64	GetMedianTime () const

std::string	ToString () const

void	print () const

Static Public Member Functions
static bool	IsSuperMajority (int minVersion, const CBlockIndex *pstart, unsigned int nRequired, unsigned int nToCheck)
	Returns true if there are nRequired or more blocks of minVersion or above in the last nToCheck blocks, starting at pstart and going backwards. More...

Public Attributes
const uint256 *	phashBlock

CBlockIndex *	pprev

CBlockIndex *	pnext

int	nHeight

int	nFile

unsigned int	nDataPos

unsigned int	nUndoPos

uint256	nChainWork

unsigned int	nTx

unsigned int	nChainTx

unsigned int	nStatus

int	nVersion

uint256	hashMerkleRoot

unsigned int	nTime

unsigned int	nBits

unsigned int	nNonce

Detailed Description

The block chain is a tree shaped structure starting with the genesis block at the root, with each block potentially having multiple candidates to be the next block.

pprev and pnext link a path through the main/longest chain. A blockindex may have multiple pprev pointing back to it, but pnext will only point forward to the longest branch, or will be null if the block is not part of the longest chain.

Definition at line 1626 of file main.h.

Member Enumeration Documentation

anonymous enum

Enumerator
nMedianTimeSpan

Definition at line 1775 of file main.h.

Constructor & Destructor Documentation

CBlockIndex::CBlockIndex ( )

inline

Definition at line 1671 of file main.h.

CBlockIndex::CBlockIndex ( CBlockHeader & block )

inline

Definition at line 1692 of file main.h.

Member Function Documentation

bool CBlockIndex::CheckIndex ( ) const

inline

Scrypt is used for block proof-of-work, but for purposes of performance the index internally uses sha256. This check was considered unneccessary given the other safeguards like the genesis and checkpoints.

Definition at line 1768 of file main.h.

uint256 CBlockIndex::GetBlockHash ( ) const

inline

Definition at line 1744 of file main.h.

CBlockHeader CBlockIndex::GetBlockHeader ( ) const

inline

Definition at line 1731 of file main.h.

CDiskBlockPos CBlockIndex::GetBlockPos ( ) const

inline

Definition at line 1713 of file main.h.

int64 CBlockIndex::GetBlockTime ( ) const

inline

Definition at line 1749 of file main.h.

CBigNum CBlockIndex::GetBlockWork ( ) const

inline

Definition at line 1754 of file main.h.

int64 CBlockIndex::GetMedianTime ( ) const

inline

Definition at line 1791 of file main.h.

int64 CBlockIndex::GetMedianTimePast ( ) const

inline

Definition at line 1777 of file main.h.

CDiskBlockPos CBlockIndex::GetUndoPos ( ) const

inline

Definition at line 1722 of file main.h.

bool CBlockIndex::IsInMainChain ( ) const

inline

Definition at line 1763 of file main.h.

bool CBlockIndex::IsSuperMajority	(	int	minVersion,
		const CBlockIndex *	pstart,
		unsigned int	nRequired,
		unsigned int	nToCheck
	)

static

Returns true if there are nRequired or more blocks of minVersion or above in the last nToCheck blocks, starting at pstart and going backwards.

Definition at line 2325 of file main.cpp.

void CBlockIndex::print ( ) const

inline

Definition at line 1818 of file main.h.

std::string CBlockIndex::ToString ( ) const

inline

Definition at line 1810 of file main.h.

Member Data Documentation

uint256 CBlockIndex::hashMerkleRoot

Definition at line 1665 of file main.h.

unsigned int CBlockIndex::nBits

Definition at line 1667 of file main.h.

unsigned int CBlockIndex::nChainTx

Definition at line 1658 of file main.h.

uint256 CBlockIndex::nChainWork

Definition at line 1651 of file main.h.

unsigned int CBlockIndex::nDataPos

Definition at line 1645 of file main.h.

int CBlockIndex::nFile

Definition at line 1642 of file main.h.

int CBlockIndex::nHeight

Definition at line 1639 of file main.h.

unsigned int CBlockIndex::nNonce

Definition at line 1668 of file main.h.

unsigned int CBlockIndex::nStatus

Definition at line 1661 of file main.h.

unsigned int CBlockIndex::nTime

Definition at line 1666 of file main.h.

unsigned int CBlockIndex::nTx

Definition at line 1655 of file main.h.

unsigned int CBlockIndex::nUndoPos

Definition at line 1648 of file main.h.

int CBlockIndex::nVersion

Definition at line 1664 of file main.h.

const uint256* CBlockIndex::phashBlock

Definition at line 1630 of file main.h.

CBlockIndex* CBlockIndex::pnext

Definition at line 1636 of file main.h.

CBlockIndex* CBlockIndex::pprev

Definition at line 1633 of file main.h.

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

src/main.h
src/main.cpp

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation