79 lines
2.8 KiB
C++
79 lines
2.8 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 COPYING 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 "checkpoints.h"
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#include "main.h"
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#include "uint256.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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( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
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(105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
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(134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
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(168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
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(193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
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;
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static MapCheckpoints mapCheckpointsTestnet =
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boost::assign::map_list_of
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( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
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;
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bool CheckBlock(int nHeight, const uint256& hash)
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{
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if (!GetBoolArg("-checkpoints", true))
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return true;
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MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
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MapCheckpoints::const_iterator i = checkpoints.find(nHeight);
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if (i == checkpoints.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 (!GetBoolArg("-checkpoints", true))
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return 0;
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MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
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return checkpoints.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 (!GetBoolArg("-checkpoints", true))
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return NULL;
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MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
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BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints)
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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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