diff --git a/src/chainparams.cpp b/src/chainparams.cpp index 31c67715c87..a81b618208e 100644 --- a/src/chainparams.cpp +++ b/src/chainparams.cpp @@ -44,6 +44,57 @@ static void convertSeed6(std::vector &vSeedsOut, const SeedSpec6 *data } } + // 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 Checkpoints::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 Checkpoints::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 Checkpoints::MapCheckpoints mapCheckpointsTestnet = + boost::assign::map_list_of + ( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")) + ; +static const Checkpoints::CCheckpointData dataTestnet = { + &mapCheckpointsTestnet, + 1337966069, + 1488, + 300 + }; + +static Checkpoints::MapCheckpoints mapCheckpointsRegtest = + boost::assign::map_list_of + ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")) + ; +static const Checkpoints::CCheckpointData dataRegtest = { + &mapCheckpointsRegtest, + 0, + 0, + 0 + }; + class CMainParams : public CChainParams { public: CMainParams() { @@ -117,6 +168,11 @@ public: fMineBlocksOnDemand = false; fSkipProofOfWorkCheck = false; } + + const Checkpoints::CCheckpointData& Checkpoints() const + { + return data; + } }; static CMainParams mainParams; @@ -173,6 +229,10 @@ public: fRequireStandard = false; fMineBlocksOnDemand = false; } + const Checkpoints::CCheckpointData& Checkpoints() const + { + return dataTestnet; + } }; static CTestNetParams testNetParams; @@ -212,6 +272,10 @@ public: fRequireStandard = false; fMineBlocksOnDemand = true; } + const Checkpoints::CCheckpointData& Checkpoints() const + { + return dataRegtest; + } }; static CRegTestParams regTestParams; @@ -233,7 +297,13 @@ public: fAllowMinDifficultyBlocks = false; fMineBlocksOnDemand = true; } -public: + + const Checkpoints::CCheckpointData& Checkpoints() const + { + // UnitTest share the same checkpoints as MAIN + return data; + } + // Published setters to allow changing values in unit test cases virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval) { nSubsidyHalvingInterval=anSubsidyHalvingInterval; } virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority) { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; } diff --git a/src/chainparams.h b/src/chainparams.h index 50441a89f3d..d3b1781b4d8 100644 --- a/src/chainparams.h +++ b/src/chainparams.h @@ -8,6 +8,7 @@ #include "core.h" #include "chainparamsbase.h" +#include "checkpoints.h" #include "protocol.h" #include "uint256.h" @@ -77,6 +78,7 @@ public: const std::vector& DNSSeeds() const { return vSeeds; } const std::vector& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; } const std::vector& FixedSeeds() const { return vFixedSeeds; } + virtual const Checkpoints::CCheckpointData& Checkpoints() const = 0; protected: CChainParams() {} diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp index 9a6bc05e63d..fbde47339d9 100644 --- a/src/checkpoints.cpp +++ b/src/checkpoints.cpp @@ -4,18 +4,16 @@ #include "checkpoints.h" +#include "chainparams.h" #include "main.h" #include "uint256.h" #include -#include // for 'map_list_of()' #include namespace Checkpoints { - typedef std::map 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 @@ -23,83 +21,14 @@ namespace Checkpoints { // 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 if (Params().NetworkID() == CBaseChainParams::UNITTEST) // UnitTest share the same checkpoints as MAIN - return data; - else - return dataRegtest; - } - bool CheckBlock(int nHeight, const uint256& hash) { if (!fEnabled) return true; - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; + const MapCheckpoints& checkpoints = *Params().Checkpoints().mapCheckpoints; MapCheckpoints::const_iterator i = checkpoints.find(nHeight); if (i == checkpoints.end()) return true; @@ -119,7 +48,7 @@ namespace Checkpoints { // Work is defined as: 1.0 per transaction before the last checkpoint, and // fSigcheckVerificationFactor per transaction after. - const CCheckpointData &data = Checkpoints(); + const CCheckpointData &data = Params().Checkpoints(); if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) { double nCheapBefore = pindex->nChainTx; @@ -143,7 +72,7 @@ namespace Checkpoints { if (!fEnabled) return 0; - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; + const MapCheckpoints& checkpoints = *Params().Checkpoints().mapCheckpoints; return checkpoints.rbegin()->first; } @@ -153,7 +82,7 @@ namespace Checkpoints { if (!fEnabled) return NULL; - const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints; + const MapCheckpoints& checkpoints = *Params().Checkpoints().mapCheckpoints; BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints) { diff --git a/src/checkpoints.h b/src/checkpoints.h index fca046559ae..b5b620fa6b2 100644 --- a/src/checkpoints.h +++ b/src/checkpoints.h @@ -5,16 +5,26 @@ #ifndef BITCOIN_CHECKPOINT_H #define BITCOIN_CHECKPOINT_H +#include "uint256.h" + #include class CBlockIndex; -class uint256; /** Block-chain checkpoints are compiled-in sanity checks. * They are updated every release or three. */ namespace Checkpoints { +typedef std::map 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);