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66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#include <boost/assign/list_of.hpp> // for 'map_list_of()'
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#include <boost/foreach.hpp>
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#include "headers.h"
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#include "checkpoints.h"
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namespace Checkpoints
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{
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typedef std::map<int, uint256> MapCheckpoints;
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//
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// What makes a good checkpoint block?
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// + Is surrounded by blocks with reasonable timestamps
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// (no blocks before with a timestamp after, none after with
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// timestamp before)
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// + Contains no strange transactions
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//
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static MapCheckpoints mapCheckpoints =
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boost::assign::map_list_of
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( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
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( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
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( 68555, uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a"))
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( 70567, uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a"))
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( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
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(105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
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(118000, uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553"))
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(134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
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(140700, uint256("0x000000000000033b512028abb90e1626d8b346fd0ed598ac0a3c371138dce2bd"))
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(168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
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;
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bool CheckBlock(int nHeight, const uint256& hash)
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{
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if (fTestNet) return true; // Testnet has no checkpoints
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MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight);
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if (i == mapCheckpoints.end()) return true;
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return hash == i->second;
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}
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int GetTotalBlocksEstimate()
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{
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if (fTestNet) return 0;
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return mapCheckpoints.rbegin()->first;
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}
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CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
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{
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if (fTestNet) return NULL;
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BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
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{
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const uint256& hash = i.second;
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std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
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if (t != mapBlockIndex.end())
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return t->second;
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}
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return NULL;
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}
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}
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