r1

2022-02-03 23:45:47 -08:00
parent 42c2062cc4
commit 184ece190c
1438 changed files with 404064 additions and 0 deletions
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+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2014-2015 The Dash developers
+// Copyright (c) 2017-2018 The PIVX developers
+// Distributed under the MIT/X11 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 <stdint.h>
+
+class CBlockHeader;
+class CBlockIndex;
+class uint256;
+class arith_uint256;
+
+// Define difficulty retarget algorithms
+enum DiffMode {
+    DIFF_DEFAULT = 0, // Default to invalid 0
+    DIFF_BTC = 1,     // Retarget every x blocks (Bitcoin style)
+    DIFF_KGW = 2,     // Retarget using Kimoto Gravity Well
+    DIFF_DGW = 3,     // Retarget using Dark Gravity Wave v3
+};
+
+unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader* pblock);
+
+/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
+bool CheckProofOfWork(uint256 hash, unsigned int nBits);
+uint256 GetBlockProof(const CBlockIndex& block);
+
+#endif // BITCOIN_POW_H