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// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_CHECKPOINTS_H
#define BITCOIN_CHECKPOINTS_H
#include "uint256.h"
#include <map>
class CBlockIndex;
/**
* Block-chain checkpoints are compiled-in sanity checks.
* They are updated every release or three.
*/
namespace Checkpoints
{
typedef std::map<int, uint256> MapCheckpoints;
struct CCheckpointData {
const MapCheckpoints *mapCheckpoints;
int64_t nTimeLastCheckpoint;
int64_t nTransactionsLastCheckpoint;
double fTransactionsPerDay;
};
//! Returns true if block passes checkpoint checks
bool CheckBlock(int nHeight, const uint256& hash);
//! Return conservative estimate of total number of blocks, 0 if unknown
int GetTotalBlocksEstimate();
//! Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
CBlockIndex* GetLastCheckpoint();
double GuessVerificationProgress(CBlockIndex* pindex, bool fSigchecks = true);
extern bool fEnabled;
} //namespace Checkpoints
#endif // BITCOIN_CHECKPOINTS_H
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