chain.cpp File Reference

#include <chain.h>
#include <tinyformat.h>
#include <util/check.h>

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Functions
std::vector< uint256 >	LocatorEntries (const CBlockIndex *index)
	Construct a list of hash entries to put in a locator.
CBlockLocator	GetLocator (const CBlockIndex *index)
	Get a locator for a block index entry.
static int	InvertLowestOne (int n)
	Turn the lowest '1' bit in the binary representation of a number into a '0'.
static int	GetSkipHeight (int height)
	Compute what height to jump back to with the CBlockIndex::pskip pointer.
arith_uint256	GetBitsProof (uint32_t bits)
	Compute how much work an nBits value corresponds to.
int64_t	GetBlockProofEquivalentTime (const CBlockIndex &to, const CBlockIndex &from, const CBlockIndex &tip, const Consensus::Params &params)
	Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds.
const CBlockIndex *	LastCommonAncestor (const CBlockIndex *pa, const CBlockIndex *pb)
	Find the last common ancestor two blocks have.

Function Documentation

GetBitsProof()

arith_uint256 GetBitsProof

(

uint32_t

bits

)

Compute how much work an nBits value corresponds to.

Definition at line 121 of file chain.cpp.

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GetBlockProofEquivalentTime()

int64_t GetBlockProofEquivalentTime	(	const CBlockIndex &	to,
		const CBlockIndex &	from,
		const CBlockIndex &	tip,
		const Consensus::Params &	params )

Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds.

Definition at line 136 of file chain.cpp.

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GetLocator()

CBlockLocator GetLocator

(

const CBlockIndex *

index

)

Get a locator for a block index entry.

Definition at line 45 of file chain.cpp.

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GetSkipHeight()

int GetSkipHeight ( int height )

inlinestatic

Compute what height to jump back to with the CBlockIndex::pskip pointer.

Definition at line 73 of file chain.cpp.

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InvertLowestOne()

int InvertLowestOne ( int n )

inlinestatic

Turn the lowest '1' bit in the binary representation of a number into a '0'.

Definition at line 70 of file chain.cpp.

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LastCommonAncestor()

const CBlockIndex * LastCommonAncestor	(	const CBlockIndex *	pa,
		const CBlockIndex *	pb )

Find the last common ancestor two blocks have.

Find the forking point between two chain tips.

Both pa and pb must be non-nullptr.

Find the last common ancestor two blocks have.

Definition at line 155 of file chain.cpp.

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LocatorEntries()

std::vector< uint256 > LocatorEntries

(

const CBlockIndex *

index

)

Construct a list of hash entries to put in a locator.

Definition at line 26 of file chain.cpp.

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