1 // Copyright (c) 2011 The Bitcoin developers
2 // Copyright (c) 2011 The PPCoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
5 #ifndef BITCOIN_CHECKPOINT_H
6 #define BITCOIN_CHECKPOINT_H
11 // ppcoin: auto checkpoint min at 1 day; max at 1 week
12 #define AUTO_CHECKPOINT_MIN_SPAN (60 * 60 * 24)
13 #define AUTO_CHECKPOINT_MAX_SPAN (60 * 60 * 24 * 7)
19 // Block-chain checkpoints are compiled-in sanity checks.
20 // They are updated every release or three.
24 extern int nAutoCheckpoint;
26 // Returns true if block passes checkpoint checks
27 bool CheckHardened(int nHeight, const uint256& hash);
28 bool CheckAuto(const CBlockIndex *pindex);
30 int GetNextChainCheckpoint(const CBlockIndex *pindex);
31 void AdvanceAutoCheckpoint(int nCheckpoint);
33 // Return conservative estimate of total number of blocks, 0 if unknown
34 int GetTotalBlocksEstimate();
36 // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
37 CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);