Bitcoin Core  24.99.0
P2P Digital Currency
pow.h
Go to the documentation of this file.
1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2022 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 
6 #ifndef BITCOIN_POW_H
7 #define BITCOIN_POW_H
8 
9 #include <consensus/params.h>
10 
11 #include <stdint.h>
12 
13 class CBlockHeader;
14 class CBlockIndex;
15 class uint256;
16 
17 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&);
18 unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&);
19 
21 bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&);
22 
35 bool PermittedDifficultyTransition(const Consensus::Params& params, int64_t height, uint32_t old_nbits, uint32_t new_nbits);
36 
37 #endif // BITCOIN_POW_H
Nodes collect new transactions into a block, hash them into a hash tree, and scan through nonce value...
Definition: block.h:22
The block chain is a tree shaped structure starting with the genesis block at the root,...
Definition: chain.h:151
256-bit opaque blob.
Definition: uint256.h:119
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 possibl...
Definition: pow.cpp:76
unsigned int GetNextWorkRequired(const CBlockIndex *pindexLast, const CBlockHeader *pblock, const Consensus::Params &)
Definition: pow.cpp:13
bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params &)
Check whether a block hash satisfies the proof-of-work requirement specified by nBits.
Definition: pow.cpp:125
unsigned int CalculateNextWorkRequired(const CBlockIndex *pindexLast, int64_t nFirstBlockTime, const Consensus::Params &)
Definition: pow.cpp:49
Parameters that influence chain consensus.
Definition: params.h:73