Projects : bitcoin : bitcoin_dumpblock_no_losers
| 1 | // Copyright (c) 2009-2012 The Bitcoin developers |
| 2 | // Distributed under the MIT/X11 software license, see the accompanying |
| 3 | // file license.txt or http://www.opensource.org/licenses/mit-license.php. |
| 4 | |
| 5 | #include <boost/assign/list_of.hpp> // for 'map_list_of()' |
| 6 | #include <boost/foreach.hpp> |
| 7 | |
| 8 | #include "headers.h" |
| 9 | #include "checkpoints.h" |
| 10 | |
| 11 | namespace Checkpoints |
| 12 | { |
| 13 | typedef std::map<int, uint256> MapCheckpoints; |
| 14 | |
| 15 | // |
| 16 | // What makes a good checkpoint block? |
| 17 | // + Is surrounded by blocks with reasonable timestamps |
| 18 | // (no blocks before with a timestamp after, none after with |
| 19 | // timestamp before) |
| 20 | // + Contains no strange transactions |
| 21 | // |
| 22 | static MapCheckpoints mapCheckpoints = |
| 23 | boost::assign::map_list_of |
| 24 | ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) |
| 25 | ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) |
| 26 | ( 68555, uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) |
| 27 | ( 70567, uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) |
| 28 | ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")) |
| 29 | (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")) |
| 30 | (118000, uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553")) |
| 31 | (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")) |
| 32 | (140700, uint256("0x000000000000033b512028abb90e1626d8b346fd0ed598ac0a3c371138dce2bd")) |
| 33 | (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")) |
| 34 | ; |
| 35 | |
| 36 | bool CheckBlock(int nHeight, const uint256& hash) |
| 37 | { |
| 38 | MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight); |
| 39 | if (i == mapCheckpoints.end()) return true; |
| 40 | return hash == i->second; |
| 41 | } |
| 42 | |
| 43 | int GetTotalBlocksEstimate() |
| 44 | { |
| 45 | return mapCheckpoints.rbegin()->first; |
| 46 | } |
| 47 | |
| 48 | CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex) |
| 49 | { |
| 50 | BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints) |
| 51 | { |
| 52 | const uint256& hash = i.second; |
| 53 | std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash); |
| 54 | if (t != mapBlockIndex.end()) |
| 55 | return t->second; |
| 56 | } |
| 57 | return NULL; |
| 58 | } |
| 59 | } |