diff options
Diffstat (limited to 'src/checkpoints.cpp')
| -rw-r--r-- | src/checkpoints.cpp | 126 |
1 files changed, 21 insertions, 105 deletions
diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp index 717f0b90f..a9822eed8 100644 --- a/src/checkpoints.cpp +++ b/src/checkpoints.cpp @@ -1,111 +1,32 @@ -// Copyright (c) 2009-2014 The Bitcoin developers -// Distributed under the MIT/X11 software license, see the accompanying +// Copyright (c) 2009-2014 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "checkpoints.h" +#include "chain.h" +#include "chainparams.h" #include "main.h" #include "uint256.h" #include <stdint.h> -#include <boost/assign/list_of.hpp> // for 'map_list_of()' #include <boost/foreach.hpp> namespace Checkpoints { - typedef std::map<int, uint256> MapCheckpoints; - - // How many times we expect transactions after the last checkpoint to - // be slower. This number is a compromise, as it can't be accurate for - // every system. When reindexing from a fast disk with a slow CPU, it - // can be up to 20, while when downloading from a slow network with a - // fast multicore CPU, it won't be much higher than 1. + /** + * How many times slower we expect checking transactions after the last + * checkpoint to be (from checking signatures, which is skipped up to the + * last checkpoint). This number is a compromise, as it can't be accurate + * for every system. When reindexing from a fast disk with a slow CPU, it + * can be up to 20, while when downloading from a slow network with a + * fast multicore CPU, it won't be much higher than 1. + */ static const double SIGCHECK_VERIFICATION_FACTOR = 5.0; - struct CCheckpointData { - const MapCheckpoints *mapCheckpoints; - int64_t nTimeLastCheckpoint; - int64_t nTransactionsLastCheckpoint; - double fTransactionsPerDay; - }; - - bool fEnabled = true; - - // What makes a good checkpoint block? - // + Is surrounded by blocks with reasonable timestamps - // (no blocks before with a timestamp after, none after with - // timestamp before) - // + Contains no strange transactions - static MapCheckpoints mapCheckpoints = - boost::assign::map_list_of - ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) - ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) - ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")) - (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")) - (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")) - (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")) - (193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317")) - (210000, uint256("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e")) - (216116, uint256("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e")) - (225430, uint256("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932")) - (250000, uint256("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214")) - (279000, uint256("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40")) - (295000, uint256("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")) - ; - static const CCheckpointData data = { - &mapCheckpoints, - 1397080064, // * UNIX timestamp of last checkpoint block - 36544669, // * total number of transactions between genesis and last checkpoint - // (the tx=... number in the SetBestChain debug.log lines) - 60000.0 // * estimated number of transactions per day after checkpoint - }; - - static MapCheckpoints mapCheckpointsTestnet = - boost::assign::map_list_of - ( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")) - ; - static const CCheckpointData dataTestnet = { - &mapCheckpointsTestnet, - 1337966069, - 1488, - 300 - }; - - static MapCheckpoints mapCheckpointsRegtest = - boost::assign::map_list_of - ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")) - ; - static const CCheckpointData dataRegtest = { - &mapCheckpointsRegtest, - 0, - 0, - 0 - }; - - const CCheckpointData &Checkpoints() { - if (Params().NetworkID() == CBaseChainParams::TESTNET) - return dataTestnet; - else if (Params().NetworkID() == CBaseChainParams::MAIN) - return data; - else - return dataRegtest; - } - - bool CheckBlock(int nHeight, const uint256& hash) - { - if (!fEnabled) - return true; - - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; - - MapCheckpoints::const_iterator i = checkpoints.find(nHeight); - if (i == checkpoints.end()) return true; - return hash == i->second; - } - - // Guess how far we are in the verification process at the given block index - double GuessVerificationProgress(CBlockIndex *pindex, bool fSigchecks) { + //! Guess how far we are in the verification process at the given block index + double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex *pindex, bool fSigchecks) { if (pindex==NULL) return 0.0; @@ -117,8 +38,6 @@ namespace Checkpoints { // Work is defined as: 1.0 per transaction before the last checkpoint, and // fSigcheckVerificationFactor per transaction after. - const CCheckpointData &data = Checkpoints(); - if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) { double nCheapBefore = pindex->nChainTx; double nCheapAfter = data.nTransactionsLastCheckpoint - pindex->nChainTx; @@ -136,27 +55,24 @@ namespace Checkpoints { return fWorkBefore / (fWorkBefore + fWorkAfter); } - int GetTotalBlocksEstimate() + int GetTotalBlocksEstimate(const CCheckpointData& data) { - if (!fEnabled) - return 0; + const MapCheckpoints& checkpoints = data.mapCheckpoints; - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; + if (checkpoints.empty()) + return 0; return checkpoints.rbegin()->first; } - CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex) + CBlockIndex* GetLastCheckpoint(const CCheckpointData& data) { - if (!fEnabled) - return NULL; - - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; + const MapCheckpoints& checkpoints = data.mapCheckpoints; BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints) { const uint256& hash = i.second; - std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash); + BlockMap::const_iterator t = mapBlockIndex.find(hash); if (t != mapBlockIndex.end()) return t->second; } |