Bitcoin Core  24.99.0
P2P Digital Currency
Functions
pow.h File Reference
#include <consensus/params.h>
#include <stdint.h>
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Functions

unsigned int GetNextWorkRequired (const CBlockIndex *pindexLast, const CBlockHeader *pblock, const Consensus::Params &)
 
unsigned int CalculateNextWorkRequired (const CBlockIndex *pindexLast, int64_t nFirstBlockTime, const Consensus::Params &)
 
bool CheckProofOfWork (uint256 hash, unsigned int nBits, const Consensus::Params &)
 Check whether a block hash satisfies the proof-of-work requirement specified by nBits. More...
 
bool PermittedDifficultyTransition (const Consensus::Params &params, int64_t height, uint32_t old_nbits, uint32_t new_nbits)
 Return false if the proof-of-work requirement specified by new_nbits at a given height is not possible, given the proof-of-work on the prior block as specified by old_nbits. More...
 

Function Documentation

◆ CalculateNextWorkRequired()

unsigned int CalculateNextWorkRequired ( const CBlockIndex pindexLast,
int64_t  nFirstBlockTime,
const Consensus::Params params 
)

Definition at line 49 of file pow.cpp.

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◆ CheckProofOfWork()

bool CheckProofOfWork ( uint256  hash,
unsigned int  nBits,
const Consensus::Params params 
)

Check whether a block hash satisfies the proof-of-work requirement specified by nBits.

Definition at line 125 of file pow.cpp.

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◆ GetNextWorkRequired()

unsigned int GetNextWorkRequired ( const CBlockIndex pindexLast,
const CBlockHeader pblock,
const Consensus::Params params 
)

Definition at line 13 of file pow.cpp.

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◆ PermittedDifficultyTransition()

bool PermittedDifficultyTransition ( const Consensus::Params params,
int64_t  height,
uint32_t  old_nbits,
uint32_t  new_nbits 
)

Return false if the proof-of-work requirement specified by new_nbits at a given height is not possible, given the proof-of-work on the prior block as specified by old_nbits.

This function only checks that the new value is within a factor of 4 of the old value for blocks at the difficulty adjustment interval, and otherwise requires the values to be the same.

Always returns true on networks where min difficulty blocks are allowed, such as regtest/testnet.

Definition at line 76 of file pow.cpp.

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