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Move checkpoint data selection to chainparams

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This commit is contained in:
jtimon 2014-08-31 21:32:23 +02:00
parent 6de50c3c9a
commit e11712df7e
4 changed files with 89 additions and 78 deletions
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72
src/chainparams.cpp
View file

@ -44,6 +44,57 @@ static void convertSeed6(std::vector<CAddress> &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; }

2
src/chainparams.h
View file

@ -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<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
const std::vector<CAddress>& FixedSeeds() const { return vFixedSeeds; }
virtual const Checkpoints::CCheckpointData& Checkpoints() const = 0;
protected:
CChainParams() {}

81
src/checkpoints.cpp
View file

@ -4,18 +4,16 @@
#include "checkpoints.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
@ -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)
{

12
src/checkpoints.h
View file

@ -5,16 +5,26 @@
#ifndef BITCOIN_CHECKPOINT_H
#define BITCOIN_CHECKPOINT_H
#include "uint256.h"
#include <map>
class CBlockIndex;
class uint256;
/** Block-chain checkpoints are compiled-in sanity checks.
* They are updated every release or three.
*/
namespace Checkpoints
{
typedef std::map<int, uint256> 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);