src/checkpoints.h

   1 // Copyright (c) 2009-2014 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #ifndef BITCOIN_CHECKPOINTS_H
   6 #define BITCOIN_CHECKPOINTS_H
   7
   8 #include "uint256.h"
   9
  10 #include <map>
  11
  12 class CBlockIndex;
  13
  14 /**
  15  * Block-chain checkpoints are compiled-in sanity checks.
  16  * They are updated every release or three.
  17  */
  18 namespace Checkpoints
  19 {
  20 typedef std::map<int, uint256> MapCheckpoints;
  21
  22 struct CCheckpointData {
  23     MapCheckpoints mapCheckpoints;
  24     int64_t nTimeLastCheckpoint;
  25     int64_t nTransactionsLastCheckpoint;
  26     double fTransactionsPerDay;
  27 };
  28
  29 //! Return conservative estimate of total number of blocks, 0 if unknown
  30 int GetTotalBlocksEstimate(const CCheckpointData& data);
  31
  32 //! Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
  33 CBlockIndex* GetLastCheckpoint(const CCheckpointData& data);
  34
  35 double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex* pindex, bool fSigchecks = true);
  36
  37 } //namespace Checkpoints
  38
  39 #endif // BITCOIN_CHECKPOINTS_H