// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
-// Copyright (c) 2011-2012 The PPCoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_MAIN_H
#define BITCOIN_MAIN_H
+#include <algorithm>
+
+#include "timestamps.h"
#include "bignum.h"
+#include "sync.h"
#include "net.h"
#include "script.h"
+#include "scrypt.h"
+#include "ui_interface.h"
-#ifdef WIN32
-#include <io.h> /* for _commit */
-#endif
-
+#include <limits>
#include <list>
+#include <map>
+
+using namespace std;
class CWallet;
class CBlock;
class CRequestTracker;
class CNode;
+//
+// Global state
+//
+
static const unsigned int MAX_BLOCK_SIZE = 1000000;
static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
static const unsigned int MAX_ORPHAN_TRANSACTIONS = MAX_BLOCK_SIZE/100;
-static const int64 MIN_TX_FEE = CENT;
-static const int64 MIN_RELAY_TX_FEE = CENT;
-static const int64 MAX_MONEY = 2000000000 * COIN;
-static const int64 MAX_MINT_PROOF_OF_WORK = 9999 * COIN;
-static const int64 MIN_TXOUT_AMOUNT = MIN_TX_FEE;
-inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
-static const int COINBASE_MATURITY_PPC = 500;
-// Threshold for nLockTime: below this value it is interpreted as block number, otherwise as UNIX timestamp.
-static const int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
-#ifdef USE_UPNP
-static const int fHaveUPnP = true;
-#else
-static const int fHaveUPnP = false;
-#endif
-
-static const uint256 hashGenesisBlockOfficial("0x0000000032fe677166d54963b62a4677d8957e87c508eaa4fd7eb1c880cd27e3");
-static const uint256 hashGenesisBlockTestNet("0x00000001f757bb737f6596503e17cd17b0658ce630cc727c0cca81aec47c9f06");
-
-static const int64 nMaxClockDrift = 2 * 60 * 60; // two hours
+static const unsigned int MAX_INV_SZ = 50000;
-extern CScript COINBASE_FLAGS;
+static const int64_t MIN_TX_FEE = CENT/10;
+static const int64_t MIN_RELAY_TX_FEE = CENT/50;
+static const int64_t MAX_MONEY = numeric_limits<int64_t>::max();
+static const int64_t MAX_MINT_PROOF_OF_WORK = 100 * COIN;
+static const int64_t MAX_MINT_PROOF_OF_STAKE = 1 * COIN;
+static const int64_t MIN_TXOUT_AMOUNT = CENT/100;
+inline bool MoneyRange(int64_t nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
+// Threshold for nLockTime: below this value it is interpreted as block number, otherwise as UNIX timestamp.
+static const unsigned int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
+// Maximum number of script-checking threads allowed
+static const int MAX_SCRIPTCHECK_THREADS = 16;
+static const uint256 hashGenesisBlock("0x00000a060336cbb72fe969666d337b87198b1add2abaa59cca226820b32933a4");
+static const uint256 hashGenesisBlockTestNet("0x000c763e402f2436da9ed36c7286f62c3f6e5dbafce9ff289bd43d7459327eb");
+inline int64_t PastDrift(int64_t nTime) { return nTime - 2 * nOneHour; } // up to 2 hours from the past
+inline int64_t FutureDrift(int64_t nTime) { return nTime + 2 * nOneHour; } // up to 2 hours from the future
+extern CScript COINBASE_FLAGS;
extern CCriticalSection cs_main;
-extern std::map<uint256, CBlockIndex*> mapBlockIndex;
-extern std::set<std::pair<COutPoint, unsigned int> > setStakeSeen;
-extern uint256 hashGenesisBlock;
+extern map<uint256, CBlockIndex*> mapBlockIndex;
+extern set<pair<COutPoint, unsigned int> > setStakeSeen;
+extern CBlockIndex* pindexGenesisBlock;
+extern unsigned int nNodeLifespan;
extern unsigned int nStakeMinAge;
extern int nCoinbaseMaturity;
-extern CBlockIndex* pindexGenesisBlock;
extern int nBestHeight;
-extern CBigNum bnBestChainTrust;
-extern CBigNum bnBestInvalidTrust;
+extern uint256 nBestChainTrust;
+extern uint256 nBestInvalidTrust;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
-extern uint64 nLastBlockTx;
-extern uint64 nLastBlockSize;
-extern int64 nLastCoinStakeSearchInterval;
-extern const std::string strMessageMagic;
-extern double dHashesPerSec;
-extern int64 nHPSTimerStart;
-extern int64 nTimeBestReceived;
+extern uint64_t nLastBlockTx;
+extern uint64_t nLastBlockSize;
+extern uint32_t nLastCoinStakeSearchInterval;
+extern const string strMessageMagic;
+extern int64_t nTimeBestReceived;
extern CCriticalSection cs_setpwalletRegistered;
-extern std::set<CWallet*> setpwalletRegistered;
-extern std::map<uint256, CBlock*> mapOrphanBlocks;
+extern set<CWallet*> setpwalletRegistered;
+extern uint32_t nNetworkID;
+extern map<uint256, CBlock*> mapOrphanBlocks;
// Settings
-extern int64 nTransactionFee;
-
-
-
+extern int64_t nTransactionFee;
+extern int64_t nMinimumInputValue;
+extern bool fUseFastIndex;
+extern int nScriptCheckThreads;
+extern const uint256 entropyStore[38];
+// Minimum disk space required - used in CheckDiskSpace()
+static const uint64_t nMinDiskSpace = 52428800;
class CReserveKey;
class CTxDB;
class CTxIndex;
+class CScriptCheck;
void RegisterWallet(CWallet* pwalletIn);
void UnregisterWallet(CWallet* pwalletIn);
+void SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL, bool fUpdate = false, bool fConnect = true);
bool ProcessBlock(CNode* pfrom, CBlock* pblock);
-bool CheckDiskSpace(uint64 nAdditionalBytes=0);
+bool CheckDiskSpace(uint64_t nAdditionalBytes=0);
FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
FILE* AppendBlockFile(unsigned int& nFileRet);
+
+void UnloadBlockIndex();
bool LoadBlockIndex(bool fAllowNew=true);
void PrintBlockTree();
+CBlockIndex* FindBlockByHeight(int nHeight);
bool ProcessMessages(CNode* pfrom);
-bool SendMessages(CNode* pto, bool fSendTrickle);
-void GenerateBitcoins(bool fGenerate, CWallet* pwallet);
-CBlock* CreateNewBlock(CWallet* pwallet, bool fProofOfStake=false);
-void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
-void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1);
-bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey);
+bool SendMessages(CNode* pto);
+bool LoadExternalBlockFile(FILE* fileIn, CClientUIInterface& uiInterface);
+
+// Run an instance of the script checking thread
+void ThreadScriptCheck(void* parg);
+// Stop the script checking threads
+void ThreadScriptCheckQuit();
+
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
-int64 GetProofOfWorkReward(unsigned int nBits);
-int64 GetProofOfStakeReward(int64 nCoinAge);
-unsigned int ComputeMinWork(unsigned int nBase, int64 nTime);
+unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfStake);
+int64_t GetProofOfWorkReward(unsigned int nBits, int64_t nFees=0);
+int64_t GetProofOfStakeReward(int64_t nCoinAge, unsigned int nBits, int64_t nTime, bool bCoinYearOnly=false);
+unsigned int ComputeMinWork(unsigned int nBase, int64_t nTime);
+unsigned int ComputeMinStake(unsigned int nBase, int64_t nTime, unsigned int nBlockTime);
int GetNumBlocksOfPeers();
bool IsInitialBlockDownload();
-std::string GetWarnings(std::string strFor);
+string GetWarnings(string strFor);
+bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock);
uint256 WantedByOrphan(const CBlock* pblockOrphan);
const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfStake);
-void BitcoinMiner(CWallet *pwallet, bool fProofOfStake);
-
+void ResendWalletTransactions(bool fForceResend=false);
+bool VerifySignature(const CTransaction& txFrom, const CTransaction& txTo, unsigned int nIn, unsigned int flags, int nHashType);
-
-
-bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
+bool GetWalletFile(CWallet* pwallet, string &strWalletFileOut);
/** Position on disk for a particular transaction. */
class CDiskTxPos
{
public:
- unsigned int nFile;
- unsigned int nBlockPos;
- unsigned int nTxPos;
+ uint32_t nFile;
+ uint32_t nBlockPos;
+ uint32_t nTxPos;
CDiskTxPos()
{
}
IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
- void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
- bool IsNull() const { return (nFile == -1); }
+ void SetNull() { nFile = numeric_limits<uint32_t>::max(); nBlockPos = 0; nTxPos = 0; }
+ bool IsNull() const { return (nFile == numeric_limits<uint32_t>::max()); }
friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
{
return !(a == b);
}
- std::string ToString() const
+
+ string ToString() const
{
if (IsNull())
return "null";
else
- return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
+ return strprintf("(nFile=%" PRIu32 ", nBlockPos=%" PRIu32 ", nTxPos=%" PRIu32 ")", nFile, nBlockPos, nTxPos);
}
void print() const
{
public:
CTransaction* ptx;
- unsigned int n;
+ uint32_t n;
CInPoint() { SetNull(); }
CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }
- void SetNull() { ptx = NULL; n = -1; }
- bool IsNull() const { return (ptx == NULL && n == -1); }
+ void SetNull() { ptx = NULL; n = numeric_limits<uint32_t>::max(); }
+ bool IsNull() const { return (ptx == NULL && n == numeric_limits<uint32_t>::max()); }
};
{
public:
uint256 hash;
- unsigned int n;
+ uint32_t n;
COutPoint() { SetNull(); }
COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
- void SetNull() { hash = 0; n = -1; }
- bool IsNull() const { return (hash == 0 && n == -1); }
+ void SetNull() { hash = 0; n = numeric_limits<uint32_t>::max(); }
+ bool IsNull() const { return (hash == 0 && n == numeric_limits<uint32_t>::max()); }
friend bool operator<(const COutPoint& a, const COutPoint& b)
{
return !(a == b);
}
- std::string ToString() const
+ string ToString() const
{
- return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,10).c_str(), n);
+ return strprintf("COutPoint(%s, %" PRIu32 ")", hash.ToString().substr(0,10).c_str(), n);
}
void print() const
public:
COutPoint prevout;
CScript scriptSig;
- unsigned int nSequence;
+ uint32_t nSequence;
CTxIn()
{
- nSequence = std::numeric_limits<unsigned int>::max();
+ nSequence = numeric_limits<unsigned int>::max();
}
- explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=std::numeric_limits<unsigned int>::max())
+ explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=numeric_limits<unsigned int>::max())
{
prevout = prevoutIn;
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
}
- CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=std::numeric_limits<unsigned int>::max())
+ CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=numeric_limits<unsigned int>::max())
{
prevout = COutPoint(hashPrevTx, nOut);
scriptSig = scriptSigIn;
bool IsFinal() const
{
- return (nSequence == std::numeric_limits<unsigned int>::max());
+ return (nSequence == numeric_limits<unsigned int>::max());
}
friend bool operator==(const CTxIn& a, const CTxIn& b)
return !(a == b);
}
- std::string ToStringShort() const
+ string ToStringShort() const
{
return strprintf(" %s %d", prevout.hash.ToString().c_str(), prevout.n);
}
- std::string ToString() const
+ string ToString() const
{
- std::string str;
+ string str;
str += "CTxIn(";
str += prevout.ToString();
if (prevout.IsNull())
str += strprintf(", coinbase %s", HexStr(scriptSig).c_str());
else
str += strprintf(", scriptSig=%s", scriptSig.ToString().substr(0,24).c_str());
- if (nSequence != std::numeric_limits<unsigned int>::max())
- str += strprintf(", nSequence=%u", nSequence);
+ if (nSequence != numeric_limits<unsigned int>::max())
+ str += strprintf(", nSequence=%" PRIu32, nSequence);
str += ")";
return str;
}
class CTxOut
{
public:
- int64 nValue;
+ int64_t nValue;
CScript scriptPubKey;
CTxOut()
SetNull();
}
- CTxOut(int64 nValueIn, CScript scriptPubKeyIn)
+ CTxOut(int64_t nValueIn, CScript scriptPubKeyIn)
{
nValue = nValueIn;
scriptPubKey = scriptPubKeyIn;
return !(a == b);
}
- std::string ToStringShort() const
+ string ToStringShort() const
{
return strprintf(" out %s %s", FormatMoney(nValue).c_str(), scriptPubKey.ToString(true).c_str());
}
- std::string ToString() const
+ string ToString() const
{
if (IsEmpty()) return "CTxOut(empty)";
if (scriptPubKey.size() < 6)
{
GMF_BLOCK,
GMF_RELAY,
- GMF_SEND,
+ GMF_SEND
};
-typedef std::map<uint256, std::pair<CTxIndex, CTransaction> > MapPrevTx;
+typedef map<uint256, pair<CTxIndex, CTransaction> > MapPrevTx;
/** The basic transaction that is broadcasted on the network and contained in
* blocks. A transaction can contain multiple inputs and outputs.
class CTransaction
{
public:
+ static const int CURRENT_VERSION=1;
int nVersion;
- unsigned int nTime;
- std::vector<CTxIn> vin;
- std::vector<CTxOut> vout;
- unsigned int nLockTime;
+ uint32_t nTime;
+ vector<CTxIn> vin;
+ vector<CTxOut> vout;
+ uint32_t nLockTime;
// Denial-of-service detection:
mutable int nDoS;
void SetNull()
{
- nVersion = 1;
- nTime = GetAdjustedTime();
+ nVersion = CTransaction::CURRENT_VERSION;
+ nTime = (uint32_t) GetAdjustedTime();
vin.clear();
vout.clear();
nLockTime = 0;
return SerializeHash(*this);
}
- bool IsFinal(int nBlockHeight=0, int64 nBlockTime=0) const
+ bool IsFinal(int nBlockHeight=0, int64_t nBlockTime=0) const
{
// Time based nLockTime implemented in 0.1.6
if (nLockTime == 0)
nBlockHeight = nBestHeight;
if (nBlockTime == 0)
nBlockTime = GetAdjustedTime();
- if ((int64)nLockTime < ((int64)nLockTime < LOCKTIME_THRESHOLD ? (int64)nBlockHeight : nBlockTime))
+ if ((int64_t)nLockTime < ((int64_t)nLockTime < LOCKTIME_THRESHOLD ? (int64_t)nBlockHeight : nBlockTime))
return true;
- BOOST_FOREACH(const CTxIn& txin, vin)
+ for(const CTxIn& txin : vin)
if (!txin.IsFinal())
return false;
return true;
return false;
bool fNewer = false;
- unsigned int nLowest = std::numeric_limits<unsigned int>::max();
+ unsigned int nLowest = numeric_limits<unsigned int>::max();
for (unsigned int i = 0; i < vin.size(); i++)
{
if (vin[i].nSequence != old.vin[i].nSequence)
/** Check for standard transaction types
@return True if all outputs (scriptPubKeys) use only standard transaction forms
*/
- bool IsStandard() const;
+ bool IsStandard(string& strReason) const;
+ bool IsStandard() const
+ {
+ string strReason;
+ return IsStandard(strReason);
+ }
/** Check for standard transaction types
@param[in] mapInputs Map of previous transactions that have outputs we're spending
/** Amount of bitcoins spent by this transaction.
@return sum of all outputs (note: does not include fees)
*/
- int64 GetValueOut() const
+ int64_t GetValueOut() const
{
- int64 nValueOut = 0;
- BOOST_FOREACH(const CTxOut& txout, vout)
+ int64_t nValueOut = 0;
+ for(const CTxOut& txout : vout)
{
nValueOut += txout.nValue;
if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
- throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
+ throw runtime_error("CTransaction::GetValueOut() : value out of range");
}
return nValueOut;
}
@return Sum of value of all inputs (scriptSigs)
@see CTransaction::FetchInputs
*/
- int64 GetValueIn(const MapPrevTx& mapInputs) const;
+ int64_t GetValueIn(const MapPrevTx& mapInputs) const;
static bool AllowFree(double dPriority)
{
return dPriority > COIN * 144 / 250;
}
- int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=false, enum GetMinFee_mode mode=GMF_BLOCK) const
- {
- // Base fee is either MIN_TX_FEE or MIN_RELAY_TX_FEE
- int64 nBaseFee = (mode == GMF_RELAY) ? MIN_RELAY_TX_FEE : MIN_TX_FEE;
-
- unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION);
- unsigned int nNewBlockSize = nBlockSize + nBytes;
- int64 nMinFee = (1 + (int64)nBytes / 1000) * nBaseFee;
-
- if (fAllowFree)
- {
- if (nBlockSize == 1)
- {
- // Transactions under 10K are free
- // (about 4500bc if made of 50bc inputs)
- if (nBytes < 10000)
- nMinFee = 0;
- }
- else
- {
- // Free transaction area
- if (nNewBlockSize < 27000)
- nMinFee = 0;
- }
- }
-
- // To limit dust spam, require MIN_TX_FEE/MIN_RELAY_TX_FEE if any output is less than 0.01
- if (nMinFee < nBaseFee)
- {
- BOOST_FOREACH(const CTxOut& txout, vout)
- if (txout.nValue < CENT)
- nMinFee = nBaseFee;
- }
-
- // Raise the price as the block approaches full
- if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
- {
- if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
- return MAX_MONEY;
- nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
- }
-
- if (!MoneyRange(nMinFee))
- nMinFee = MAX_MONEY;
- return nMinFee;
- }
-
+ int64_t GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=false, enum GetMinFee_mode mode=GMF_BLOCK, unsigned int nBytes = 0) const;
bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
{
- CAutoFile filein = CAutoFile(OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
+ auto filein = CAutoFile(OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
try {
filein >> *this;
}
- catch (std::exception &e) {
- return error("%s() : deserialize or I/O error", __PRETTY_FUNCTION__);
+ catch (const exception&) {
+ return error("%s() : deserialize or I/O error", BOOST_CURRENT_FUNCTION);
}
// Return file pointer
return !(a == b);
}
-
- std::string ToStringShort() const
+ string ToStringShort() const
{
- std::string str;
+ string str;
str += strprintf("%s %s", GetHash().ToString().c_str(), IsCoinBase()? "base" : (IsCoinStake()? "stake" : "user"));
return str;
}
- std::string ToString() const
+ string ToString() const
{
- std::string str;
+ string str;
str += IsCoinBase()? "Coinbase" : (IsCoinStake()? "Coinstake" : "CTransaction");
- str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
+ str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%" PRIszu ", vout.size=%" PRIszu ", nLockTime=%d)\n",
GetHash().ToString().substr(0,10).c_str(),
nTime,
nVersion,
@param[out] fInvalid returns true if transaction is invalid
@return Returns true if all inputs are in txdb or mapTestPool
*/
- bool FetchInputs(CTxDB& txdb, const std::map<uint256, CTxIndex>& mapTestPool,
+ bool FetchInputs(CTxDB& txdb, const map<uint256, CTxIndex>& mapTestPool,
bool fBlock, bool fMiner, MapPrevTx& inputsRet, bool& fInvalid);
/** Sanity check previous transactions, then, if all checks succeed,
@param[in] pindexBlock
@param[in] fBlock true if called from ConnectBlock
@param[in] fMiner true if called from CreateNewBlock
- @param[in] fStrictPayToScriptHash true if fully validating p2sh transactions
+ @param[in] fScriptChecks enable scripts validation?
+ @param[in] flags STRICT_FLAGS script validation flags
+ @param[in] pvChecks NULL If pvChecks is not NULL, script checks are pushed onto it instead of being performed inline.
@return Returns true if all checks succeed
*/
- bool ConnectInputs(CTxDB& txdb, MapPrevTx inputs,
- std::map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
- const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash=true);
+ bool ConnectInputs(CTxDB& txdb, MapPrevTx inputs, map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx, const CBlockIndex* pindexBlock,
+ bool fBlock, bool fMiner, bool fScriptChecks=true,
+ unsigned int flags=STRICT_FLAGS, vector<CScriptCheck> *pvChecks = NULL);
bool ClientConnectInputs();
bool CheckTransaction() const;
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
- bool GetCoinAge(CTxDB& txdb, uint64& nCoinAge) const; // ppcoin: get transaction coin age
- bool CheckProofOfStake(unsigned int nBits) const;
+ bool GetCoinAge(CTxDB& txdb, uint64_t& nCoinAge) const; // ppcoin: get transaction coin age
protected:
const CTxOut& GetOutputFor(const CTxIn& input, const MapPrevTx& inputs) const;
};
+/** Closure representing one script verification
+ * Note that this stores references to the spending transaction */
+class CScriptCheck
+{
+private:
+ CScript scriptPubKey;
+ const CTransaction *ptxTo = nullptr;
+ unsigned int nIn = 0;
+ unsigned int nFlags = 0;
+ int nHashType = 0;
+
+public:
+ CScriptCheck() {}
+ CScriptCheck(const CTransaction& txFromIn, const CTransaction& txToIn, unsigned int nInIn, unsigned int nFlagsIn, int nHashTypeIn) :
+ scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey),
+ ptxTo(&txToIn), nIn(nInIn), nFlags(nFlagsIn), nHashType(nHashTypeIn) { }
+
+ bool operator()() const;
+
+ void swap(CScriptCheck &check) {
+ scriptPubKey.swap(check.scriptPubKey);
+ std::swap(ptxTo, check.ptxTo);
+ std::swap(nIn, check.nIn);
+ std::swap(nFlags, check.nFlags);
+ std::swap(nHashType, check.nHashType);
+ }
+};
{
public:
uint256 hashBlock;
- std::vector<uint256> vMerkleBranch;
- int nIndex;
+ vector<uint256> vMerkleBranch;
+ int32_t nIndex;
// memory only
mutable bool fMerkleVerified;
{
public:
CDiskTxPos pos;
- std::vector<CDiskTxPos> vSpent;
+ vector<CDiskTxPos> vSpent;
CTxIndex()
{
return !(a == b);
}
int GetDepthInMainChain() const;
-
-};
-
-
+};
/** Nodes collect new transactions into a block, hash them into a hash tree,
{
public:
// header
- int nVersion;
+ static const int CURRENT_VERSION=6;
+ int32_t nVersion;
uint256 hashPrevBlock;
uint256 hashMerkleRoot;
- unsigned int nTime;
- unsigned int nBits;
- unsigned int nNonce;
+ uint32_t nTime;
+ uint32_t nBits;
+ uint32_t nNonce;
// network and disk
- std::vector<CTransaction> vtx;
+ vector<CTransaction> vtx;
- // ppcoin: block signature - signed by coin base txout[0]'s owner
- std::vector<unsigned char> vchBlockSig;
+ // ppcoin: block signature - signed by one of the coin base txout[N]'s owner
+ vector<unsigned char> vchBlockSig;
// memory only
- mutable std::vector<uint256> vMerkleTree;
+ mutable vector<uint256> vMerkleTree;
// Denial-of-service detection:
mutable int nDoS;
void SetNull()
{
- nVersion = 1;
+ nVersion = CBlock::CURRENT_VERSION;
hashPrevBlock = 0;
hashMerkleRoot = 0;
nTime = 0;
uint256 GetHash() const
{
- return Hash(BEGIN(nVersion), END(nNonce));
+ return scrypt_blockhash((const uint8_t*)&nVersion);
}
- int64 GetBlockTime() const
+ int64_t GetBlockTime() const
{
- return (int64)nTime;
+ return (int64_t)nTime;
}
void UpdateTime(const CBlockIndex* pindexPrev);
+ // ppcoin: entropy bit for stake modifier if chosen by modifier
+ unsigned int GetStakeEntropyBit(unsigned int nHeight) const
+ {
+ // Protocol switch to support p2pool at novacoin block #9689
+ if (nHeight >= 9689 || fTestNet)
+ {
+ // Take last bit of block hash as entropy bit
+ auto nEntropyBit = (GetHash().Get32()) & (uint32_t)1;
+ if (fDebug && GetBoolArg("-printstakemodifier"))
+ printf("GetStakeEntropyBit: nTime=%" PRIu32 " hashBlock=%s nEntropyBit=%" PRIu32 "\n", nTime, GetHash().ToString().c_str(), nEntropyBit);
+ return nEntropyBit;
+ }
+
+ // Before novacoin block #9689 - get from pregenerated table
+ int nBitNum = nHeight & 0xFF;
+ int nItemNum = nHeight / 0xFF;
+
+ auto nEntropyBit = ((entropyStore[nItemNum] & (uint256(1) << nBitNum)) >> nBitNum).Get32();
+ if (fDebug && GetBoolArg("-printstakemodifier"))
+ printf("GetStakeEntropyBit: from pregenerated table, nHeight=%" PRIu32 " nEntropyBit=%" PRIu32 "\n", nHeight, nEntropyBit);
+ return nEntropyBit;
+ }
+
// ppcoin: two types of block: proof-of-work or proof-of-stake
bool IsProofOfStake() const
{
return !IsProofOfStake();
}
- std::pair<COutPoint, unsigned int> GetProofOfStake() const
+ pair<COutPoint, unsigned int> GetProofOfStake() const
{
- return IsProofOfStake()? std::make_pair(vtx[1].vin[0].prevout, vtx[1].nTime) : std::make_pair(COutPoint(), (unsigned int)0);
+ if (IsProofOfStake())
+ return { vtx[1].vin[0].prevout, vtx[1].nTime };
+ return { COutPoint(), (unsigned int)0 };
}
// ppcoin: get max transaction timestamp
- int64 GetMaxTransactionTime() const
+ int64_t GetMaxTransactionTime() const
{
- int64 maxTransactionTime = 0;
- BOOST_FOREACH(const CTransaction& tx, vtx)
- maxTransactionTime = std::max(maxTransactionTime, (int64)tx.nTime);
+ int64_t maxTransactionTime = 0;
+ for(const auto& tx : vtx)
+ maxTransactionTime = max(maxTransactionTime, (int64_t)tx.nTime);
return maxTransactionTime;
}
uint256 BuildMerkleTree() const
{
vMerkleTree.clear();
- BOOST_FOREACH(const CTransaction& tx, vtx)
+ for(const auto& tx : vtx)
vMerkleTree.push_back(tx.GetHash());
int j = 0;
- for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
+ for (int nSize = (int)vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
{
for (int i = 0; i < nSize; i += 2)
{
- int i2 = std::min(i+1, nSize-1);
- vMerkleTree.push_back(Hash(BEGIN(vMerkleTree[j+i]), END(vMerkleTree[j+i]),
- BEGIN(vMerkleTree[j+i2]), END(vMerkleTree[j+i2])));
+ int i2 = min(i+1, nSize-1);
+ vMerkleTree.push_back(Hash(vMerkleTree[j+i].begin(), vMerkleTree[j+i].end(),
+ vMerkleTree[j+i2].begin(), vMerkleTree[j+i2].end()));
}
j += nSize;
}
return (vMerkleTree.empty() ? 0 : vMerkleTree.back());
}
- std::vector<uint256> GetMerkleBranch(int nIndex) const
+ vector<uint256> GetMerkleBranch(int nIndex) const
{
if (vMerkleTree.empty())
BuildMerkleTree();
- std::vector<uint256> vMerkleBranch;
+ vector<uint256> vMerkleBranch;
int j = 0;
- for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
+ for (int nSize = (int)vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
{
- int i = std::min(nIndex^1, nSize-1);
+ int i = min(nIndex^1, nSize-1);
vMerkleBranch.push_back(vMerkleTree[j+i]);
nIndex >>= 1;
j += nSize;
return vMerkleBranch;
}
- static uint256 CheckMerkleBranch(uint256 hash, const std::vector<uint256>& vMerkleBranch, int nIndex)
+ static uint256 CheckMerkleBranch(uint256 hash, const vector<uint256>& vMerkleBranch, int nIndex)
{
if (nIndex == -1)
return 0;
- BOOST_FOREACH(const uint256& otherside, vMerkleBranch)
+ for(const uint256& otherside : vMerkleBranch)
{
if (nIndex & 1)
- hash = Hash(BEGIN(otherside), END(otherside), BEGIN(hash), END(hash));
+ hash = Hash(otherside.begin(), otherside.end(), hash.begin(), hash.end());
else
- hash = Hash(BEGIN(hash), END(hash), BEGIN(otherside), END(otherside));
+ hash = Hash(hash.begin(), hash.end(), otherside.begin(), otherside.end());
nIndex >>= 1;
}
return hash;
bool WriteToDisk(unsigned int& nFileRet, unsigned int& nBlockPosRet)
{
// Open history file to append
- CAutoFile fileout = CAutoFile(AppendBlockFile(nFileRet), SER_DISK, CLIENT_VERSION);
+ auto fileout = CAutoFile(AppendBlockFile(nFileRet), SER_DISK, CLIENT_VERSION);
if (!fileout)
return error("CBlock::WriteToDisk() : AppendBlockFile failed");
// Write index header
- unsigned char pchMessageStart[4];
- GetMessageStart(pchMessageStart, true);
unsigned int nSize = fileout.GetSerializeSize(*this);
- fileout << FLATDATA(pchMessageStart) << nSize;
+ fileout << nNetworkID << nSize;
// Write block
long fileOutPos = ftell(fileout);
// Flush stdio buffers and commit to disk before returning
fflush(fileout);
if (!IsInitialBlockDownload() || (nBestHeight+1) % 500 == 0)
- {
-#ifdef WIN32
- _commit(_fileno(fileout));
-#else
- fsync(fileno(fileout));
-#endif
- }
+ FileCommit(fileout);
return true;
}
SetNull();
// Open history file to read
- CAutoFile filein = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb"), SER_DISK, CLIENT_VERSION);
+ auto filein = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CBlock::ReadFromDisk() : OpenBlockFile failed");
if (!fReadTransactions)
try {
filein >> *this;
}
- catch (std::exception &e) {
- return error("%s() : deserialize or I/O error", __PRETTY_FUNCTION__);
+ catch (const exception&) {
+ return error("%s() : deserialize or I/O error", BOOST_CURRENT_FUNCTION);
}
// Check the header
void print() const
{
- printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d, vchBlockSig=%s)\n",
- GetHash().ToString().substr(0,20).c_str(),
+ printf("CBlock(hash=%s, ver=%" PRId32 ", hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%" PRIu32 ", nBits=%08x, nNonce=%" PRIu32 ", vtx=%" PRIszu ", vchBlockSig=%s)\n",
+ GetHash().ToString().c_str(),
nVersion,
- hashPrevBlock.ToString().substr(0,20).c_str(),
- hashMerkleRoot.ToString().substr(0,10).c_str(),
+ hashPrevBlock.ToString().c_str(),
+ hashMerkleRoot.ToString().c_str(),
nTime, nBits, nNonce,
vtx.size(),
HexStr(vchBlockSig.begin(), vchBlockSig.end()).c_str());
bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
- bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck=false);
bool ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions=true);
bool SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew);
bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);
- bool CheckBlock() const;
+ bool CheckBlock(bool fCheckPOW=true, bool fCheckMerkleRoot=true, bool fCheckSig=true) const;
bool AcceptBlock();
- bool GetCoinAge(uint64& nCoinAge) const; // ppcoin: calculate total coin age spent in block
- bool SignBlock(const CKeyStore& keystore);
+ bool GetCoinAge(uint64_t& nCoinAge) const; // ppcoin: calculate total coin age spent in block
bool CheckBlockSignature() const;
private:
const uint256* phashBlock;
CBlockIndex* pprev;
CBlockIndex* pnext;
- unsigned int nFile;
- unsigned int nBlockPos;
- CBigNum bnChainTrust; // ppcoin: trust score of block chain
- int nHeight;
- int64 nMint;
- int64 nMoneySupply;
- bool fProofOfStake; // ppcoin: is the block of proof-of-stake type
+ uint32_t nFile;
+ uint32_t nBlockPos;
+ uint256 nChainTrust; // ppcoin: trust score of block chain
+ int32_t nHeight;
+
+ int64_t nMint;
+ int64_t nMoneySupply;
+
+ uint32_t nFlags; // ppcoin: block index flags
+ enum
+ {
+ BLOCK_PROOF_OF_STAKE = (1 << 0), // is proof-of-stake block
+ BLOCK_STAKE_ENTROPY = (1 << 1), // entropy bit for stake modifier
+ BLOCK_STAKE_MODIFIER = (1 << 2) // regenerated stake modifier
+ };
+
+ uint64_t nStakeModifier; // hash modifier for proof-of-stake
+ uint32_t nStakeModifierChecksum; // checksum of index; in-memeory only
+
+ // proof-of-stake specific fields
COutPoint prevoutStake;
- unsigned int nStakeTime;
+ uint32_t nStakeTime;
+ uint256 hashProofOfStake;
// block header
- int nVersion;
- uint256 hashMerkleRoot;
- unsigned int nTime;
- unsigned int nBits;
- unsigned int nNonce;
-
+ int32_t nVersion;
+ uint256 hashMerkleRoot;
+ uint32_t nTime;
+ uint32_t nBits;
+ uint32_t nNonce;
CBlockIndex()
{
nFile = 0;
nBlockPos = 0;
nHeight = 0;
- bnChainTrust = 0;
+ nChainTrust = 0;
nMint = 0;
nMoneySupply = 0;
- fProofOfStake = true;
+ nFlags = 0;
+ nStakeModifier = 0;
+ nStakeModifierChecksum = 0;
+ hashProofOfStake = 0;
prevoutStake.SetNull();
nStakeTime = 0;
nFile = nFileIn;
nBlockPos = nBlockPosIn;
nHeight = 0;
- bnChainTrust = 0;
+ nChainTrust = 0;
nMint = 0;
nMoneySupply = 0;
- fProofOfStake = block.IsProofOfStake();
- if (fProofOfStake)
+ nFlags = 0;
+ nStakeModifier = 0;
+ nStakeModifierChecksum = 0;
+ hashProofOfStake = 0;
+ if (block.IsProofOfStake())
{
+ SetProofOfStake();
prevoutStake = block.vtx[1].vin[0].prevout;
nStakeTime = block.vtx[1].nTime;
}
return *phashBlock;
}
- int64 GetBlockTime() const
+ int64_t GetBlockTime() const
{
- return (int64)nTime;
+ return (int64_t)nTime;
}
- CBigNum GetBlockTrust() const
- {
- CBigNum bnTarget;
- bnTarget.SetCompact(nBits);
- if (bnTarget <= 0)
- return 0;
- return (fProofOfStake? (CBigNum(1)<<256) / (bnTarget+1) : 1);
- }
+ uint256 GetBlockTrust() const;
bool IsInMainChain() const
{
bool CheckIndex() const
{
- return IsProofOfWork() ? CheckProofOfWork(GetBlockHash(), nBits) : true;
- }
-
- bool EraseBlockFromDisk()
- {
- // Open history file
- CAutoFile fileout = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb+"), SER_DISK, CLIENT_VERSION);
- if (!fileout)
- return false;
-
- // Overwrite with empty null block
- CBlock block;
- block.SetNull();
- fileout << block;
-
return true;
}
enum { nMedianTimeSpan=11 };
- int64 GetMedianTimePast() const
+ int64_t GetMedianTimePast() const
{
- int64 pmedian[nMedianTimeSpan];
- int64* pbegin = &pmedian[nMedianTimeSpan];
- int64* pend = &pmedian[nMedianTimeSpan];
+ int64_t pmedian[nMedianTimeSpan];
+ int64_t* pbegin = &pmedian[nMedianTimeSpan];
+ int64_t* pend = &pmedian[nMedianTimeSpan];
const CBlockIndex* pindex = this;
for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)
*(--pbegin) = pindex->GetBlockTime();
- std::sort(pbegin, pend);
+ sort(pbegin, pend);
return pbegin[(pend - pbegin)/2];
}
- int64 GetMedianTime() const
+ int64_t GetMedianTime() const
{
const CBlockIndex* pindex = this;
for (int i = 0; i < nMedianTimeSpan/2; i++)
return pindex->GetMedianTimePast();
}
+ /**
+ * Returns true if there are nRequired or more blocks of minVersion or above
+ * in the last nToCheck blocks, starting at pstart and going backwards.
+ */
+ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart,
+ unsigned int nRequired, unsigned int nToCheck);
+
+
bool IsProofOfWork() const
{
- return !fProofOfStake;
+ return !(nFlags & BLOCK_PROOF_OF_STAKE);
}
bool IsProofOfStake() const
{
- return fProofOfStake;
+ return (nFlags & BLOCK_PROOF_OF_STAKE);
+ }
+
+ void SetProofOfStake()
+ {
+ nFlags |= BLOCK_PROOF_OF_STAKE;
}
- std::string ToString() const
+ unsigned int GetStakeEntropyBit() const
{
- return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, nMint=%s, nMoneySupply=%s, fProofOfStake=%d prevoutStake=(%s), nStakeTime=%d merkle=%s, hashBlock=%s)",
- pprev, pnext, nFile, nBlockPos, nHeight,
+ return ((nFlags & BLOCK_STAKE_ENTROPY) >> 1);
+ }
+
+ bool SetStakeEntropyBit(unsigned int nEntropyBit)
+ {
+ if (nEntropyBit > 1)
+ return false;
+ nFlags |= (nEntropyBit? BLOCK_STAKE_ENTROPY : 0);
+ return true;
+ }
+
+ bool GeneratedStakeModifier() const
+ {
+ return (nFlags & BLOCK_STAKE_MODIFIER) != 0;
+ }
+
+ void SetStakeModifier(uint64_t nModifier, bool fGeneratedStakeModifier)
+ {
+ nStakeModifier = nModifier;
+ if (fGeneratedStakeModifier)
+ nFlags |= BLOCK_STAKE_MODIFIER;
+ }
+
+ string ToString() const
+ {
+ return strprintf("CBlockIndex(nprev=%p, pnext=%p, nFile=%u, nBlockPos=%-6d nHeight=%d, nMint=%s, nMoneySupply=%s, nFlags=(%s)(%d)(%s), nStakeModifier=%016" PRIx64 ", nStakeModifierChecksum=%08x, hashProofOfStake=%s, prevoutStake=(%s), nStakeTime=%d merkle=%s, hashBlock=%s)",
+ (const void*)pprev, (const void*)pnext, nFile, nBlockPos, nHeight,
FormatMoney(nMint).c_str(), FormatMoney(nMoneySupply).c_str(),
- fProofOfStake, prevoutStake.ToString().c_str(), nStakeTime,
- hashMerkleRoot.ToString().substr(0,10).c_str(),
- GetBlockHash().ToString().substr(0,20).c_str());
+ GeneratedStakeModifier() ? "MOD" : "-", GetStakeEntropyBit(), IsProofOfStake()? "PoS" : "PoW",
+ nStakeModifier, nStakeModifierChecksum,
+ hashProofOfStake.ToString().c_str(),
+ prevoutStake.ToString().c_str(), nStakeTime,
+ hashMerkleRoot.ToString().c_str(),
+ GetBlockHash().ToString().c_str());
}
void print() const
/** Used to marshal pointers into hashes for db storage. */
class CDiskBlockIndex : public CBlockIndex
{
+private:
+ uint256 blockHash;
+
public:
uint256 hashPrev;
uint256 hashNext;
{
hashPrev = 0;
hashNext = 0;
+ blockHash = 0;
}
explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex)
READWRITE(nHeight);
READWRITE(nMint);
READWRITE(nMoneySupply);
- READWRITE(fProofOfStake);
- if (fProofOfStake)
+ READWRITE(nFlags);
+ READWRITE(nStakeModifier);
+ if (IsProofOfStake())
{
READWRITE(prevoutStake);
READWRITE(nStakeTime);
+ READWRITE(hashProofOfStake);
}
else if (fRead)
{
const_cast<CDiskBlockIndex*>(this)->prevoutStake.SetNull();
const_cast<CDiskBlockIndex*>(this)->nStakeTime = 0;
+ const_cast<CDiskBlockIndex*>(this)->hashProofOfStake = 0;
}
// block header
READWRITE(nTime);
READWRITE(nBits);
READWRITE(nNonce);
+ READWRITE(blockHash);
)
uint256 GetBlockHash() const
{
+ if (fUseFastIndex && blockHash != 0)
+ return blockHash;
+
CBlock block;
block.nVersion = nVersion;
block.hashPrevBlock = hashPrev;
block.nTime = nTime;
block.nBits = nBits;
block.nNonce = nNonce;
- return block.GetHash();
- }
+ const_cast<CDiskBlockIndex*>(this)->blockHash = block.GetHash();
- std::string ToString() const
+ return blockHash;
+ }
+
+ string ToString() const
{
- std::string str = "CDiskBlockIndex(";
+ string str = "CDiskBlockIndex(";
str += CBlockIndex::ToString();
str += strprintf("\n hashBlock=%s, hashPrev=%s, hashNext=%s)",
GetBlockHash().ToString().c_str(),
- hashPrev.ToString().substr(0,20).c_str(),
- hashNext.ToString().substr(0,20).c_str());
+ hashPrev.ToString().c_str(),
+ hashNext.ToString().c_str());
return str;
}
class CBlockLocator
{
protected:
- std::vector<uint256> vHave;
+ vector<uint256> vHave;
public:
CBlockLocator()
explicit CBlockLocator(uint256 hashBlock)
{
- std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+ auto mi = mapBlockIndex.find(hashBlock);
if (mi != mapBlockIndex.end())
Set((*mi).second);
}
- CBlockLocator(const std::vector<uint256>& vHaveIn)
+ CBlockLocator(const vector<uint256>& vHaveIn)
{
vHave = vHaveIn;
}
if (vHave.size() > 10)
nStep *= 2;
}
- vHave.push_back(hashGenesisBlock);
+ vHave.push_back((!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet));
}
int GetDistanceBack()
// Retrace how far back it was in the sender's branch
int nDistance = 0;
int nStep = 1;
- BOOST_FOREACH(const uint256& hash, vHave)
+ for(const auto& hash : vHave)
{
- std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ auto mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end())
{
- CBlockIndex* pindex = (*mi).second;
+ auto pindex = (*mi).second;
if (pindex->IsInMainChain())
return nDistance;
}
CBlockIndex* GetBlockIndex()
{
// Find the first block the caller has in the main chain
- BOOST_FOREACH(const uint256& hash, vHave)
+ for(const auto& hash : vHave)
{
- std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ auto mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end())
{
- CBlockIndex* pindex = (*mi).second;
+ auto pindex = (*mi).second;
if (pindex->IsInMainChain())
return pindex;
}
uint256 GetBlockHash()
{
// Find the first block the caller has in the main chain
- BOOST_FOREACH(const uint256& hash, vHave)
+ for(const uint256& hash : vHave)
{
- std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ auto mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end())
{
- CBlockIndex* pindex = (*mi).second;
+ auto pindex = (*mi).second;
if (pindex->IsInMainChain())
return hash;
}
}
- return hashGenesisBlock;
+ return (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet);
}
int GetHeight()
-
-/** Alerts are for notifying old versions if they become too obsolete and
- * need to upgrade. The message is displayed in the status bar.
- * Alert messages are broadcast as a vector of signed data. Unserializing may
- * not read the entire buffer if the alert is for a newer version, but older
- * versions can still relay the original data.
- */
-class CUnsignedAlert
-{
-public:
- int nVersion;
- int64 nRelayUntil; // when newer nodes stop relaying to newer nodes
- int64 nExpiration;
- int nID;
- int nCancel;
- std::set<int> setCancel;
- int nMinVer; // lowest version inclusive
- int nMaxVer; // highest version inclusive
- std::set<std::string> setSubVer; // empty matches all
- int nPriority;
-
- // Actions
- std::string strComment;
- std::string strStatusBar;
- std::string strReserved;
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(this->nVersion);
- nVersion = this->nVersion;
- READWRITE(nRelayUntil);
- READWRITE(nExpiration);
- READWRITE(nID);
- READWRITE(nCancel);
- READWRITE(setCancel);
- READWRITE(nMinVer);
- READWRITE(nMaxVer);
- READWRITE(setSubVer);
- READWRITE(nPriority);
-
- READWRITE(strComment);
- READWRITE(strStatusBar);
- READWRITE(strReserved);
- )
-
- void SetNull()
- {
- nVersion = 1;
- nRelayUntil = 0;
- nExpiration = 0;
- nID = 0;
- nCancel = 0;
- setCancel.clear();
- nMinVer = 0;
- nMaxVer = 0;
- setSubVer.clear();
- nPriority = 0;
-
- strComment.clear();
- strStatusBar.clear();
- strReserved.clear();
- }
-
- std::string ToString() const
- {
- std::string strSetCancel;
- BOOST_FOREACH(int n, setCancel)
- strSetCancel += strprintf("%d ", n);
- std::string strSetSubVer;
- BOOST_FOREACH(std::string str, setSubVer)
- strSetSubVer += "\"" + str + "\" ";
- return strprintf(
- "CAlert(\n"
- " nVersion = %d\n"
- " nRelayUntil = %"PRI64d"\n"
- " nExpiration = %"PRI64d"\n"
- " nID = %d\n"
- " nCancel = %d\n"
- " setCancel = %s\n"
- " nMinVer = %d\n"
- " nMaxVer = %d\n"
- " setSubVer = %s\n"
- " nPriority = %d\n"
- " strComment = \"%s\"\n"
- " strStatusBar = \"%s\"\n"
- ")\n",
- nVersion,
- nRelayUntil,
- nExpiration,
- nID,
- nCancel,
- strSetCancel.c_str(),
- nMinVer,
- nMaxVer,
- strSetSubVer.c_str(),
- nPriority,
- strComment.c_str(),
- strStatusBar.c_str());
- }
-
- void print() const
- {
- printf("%s", ToString().c_str());
- }
-};
-
-/** An alert is a combination of a serialized CUnsignedAlert and a signature. */
-class CAlert : public CUnsignedAlert
-{
-public:
- std::vector<unsigned char> vchMsg;
- std::vector<unsigned char> vchSig;
-
- CAlert()
- {
- SetNull();
- }
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(vchMsg);
- READWRITE(vchSig);
- )
-
- void SetNull()
- {
- CUnsignedAlert::SetNull();
- vchMsg.clear();
- vchSig.clear();
- }
-
- bool IsNull() const
- {
- return (nExpiration == 0);
- }
-
- uint256 GetHash() const
- {
- return SerializeHash(*this);
- }
-
- bool IsInEffect() const
- {
- return (GetAdjustedTime() < nExpiration);
- }
-
- bool Cancels(const CAlert& alert) const
- {
- if (!IsInEffect())
- return false; // this was a no-op before 31403
- return (alert.nID <= nCancel || setCancel.count(alert.nID));
- }
-
- bool AppliesTo(int nVersion, std::string strSubVerIn) const
- {
- // TODO: rework for client-version-embedded-in-strSubVer ?
- return (IsInEffect() &&
- nMinVer <= nVersion && nVersion <= nMaxVer &&
- (setSubVer.empty() || setSubVer.count(strSubVerIn)));
- }
-
- bool AppliesToMe() const
- {
- return AppliesTo(PROTOCOL_VERSION, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<std::string>()));
- }
-
- bool RelayTo(CNode* pnode) const
- {
- if (!IsInEffect())
- return false;
- // returns true if wasn't already contained in the set
- if (pnode->setKnown.insert(GetHash()).second)
- {
- if (AppliesTo(pnode->nVersion, pnode->strSubVer) ||
- AppliesToMe() ||
- GetAdjustedTime() < nRelayUntil)
- {
- pnode->PushMessage("alert", *this);
- return true;
- }
- }
- return false;
- }
-
- bool CheckSignature()
- {
- CKey key;
- if (!key.SetPubKey(ParseHex("04a0a849dd49b113d3179a332dd77715c43be4d0076e2f19e66de23dd707e56630f792f298dfd209bf042bb3561f4af6983f3d81e439737ab0bf7f898fecd21aab")))
- return error("CAlert::CheckSignature() : SetPubKey failed");
- if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
- return error("CAlert::CheckSignature() : verify signature failed");
-
- // Now unserialize the data
- CDataStream sMsg(vchMsg, SER_NETWORK, PROTOCOL_VERSION);
- sMsg >> *(CUnsignedAlert*)this;
- return true;
- }
-
- bool ProcessAlert();
-};
-
class CTxMemPool
{
public:
mutable CCriticalSection cs;
- std::map<uint256, CTransaction> mapTx;
- std::map<COutPoint, CInPoint> mapNextTx;
+ map<uint256, CTransaction> mapTx;
+ map<COutPoint, CInPoint> mapNextTx;
bool accept(CTxDB& txdb, CTransaction &tx,
bool fCheckInputs, bool* pfMissingInputs);
- bool addUnchecked(CTransaction &tx);
+ bool addUnchecked(const uint256& hash, CTransaction &tx);
bool remove(CTransaction &tx);
+ void clear();
+ void queryHashes(vector<uint256>& vtxid);
- unsigned long size()
+ size_t size()
{
LOCK(cs);
return mapTx.size();
}
- bool exists(uint256 hash)
+ bool exists(const uint256 &hash)
{
return (mapTx.count(hash) != 0);
}
- CTransaction& lookup(uint256 hash)
+ CTransaction& lookup(const uint256 &hash)
{
return mapTx[hash];
}
git://git.novaco.in / novacoin.git / blobdiff