diff options
Diffstat (limited to 'src/pow.h')
| -rw-r--r-- | src/pow.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/pow.h b/src/pow.h new file mode 100644 index 0000000000..e864a474cc --- /dev/null +++ b/src/pow.h @@ -0,0 +1,28 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2014 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_POW_H +#define BITCOIN_POW_H + +#include "consensus/params.h" + +#include <stdint.h> + +class CBlockHeader; +class CBlockIndex; +class uint256; +class arith_uint256; + +unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&); +unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&); + +/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */ +bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&); +arith_uint256 GetBlockProof(const CBlockIndex& block); + +/** 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. */ +int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&); + +#endif // BITCOIN_POW_H |