-// Copyright (c) 2009 Satoshi Nakamoto\r
-// Distributed under the MIT/X11 software license, see the accompanying\r
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.\r
-\r
-class COutPoint;\r
-class CInPoint;\r
-class CDiskTxPos;\r
-class CCoinBase;\r
-class CTxIn;\r
-class CTxOut;\r
-class CTransaction;\r
-class CBlock;\r
-class CBlockIndex;\r
-class CWalletTx;\r
-class CKeyItem;\r
-\r
-static const unsigned int MAX_SIZE = 0x02000000;\r
-static const int64 COIN = 100000000;\r
-static const int64 CENT = 1000000;\r
-static const int COINBASE_MATURITY = 100;\r
-\r
-static const CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);\r
-\r
-\r
-\r
-\r
-\r
-\r
-extern CCriticalSection cs_main;\r
-extern map<uint256, CBlockIndex*> mapBlockIndex;\r
-extern const uint256 hashGenesisBlock;\r
-extern CBlockIndex* pindexGenesisBlock;\r
-extern int nBestHeight;\r
-extern uint256 hashBestChain;\r
-extern CBlockIndex* pindexBest;\r
-extern unsigned int nTransactionsUpdated;\r
-extern string strSetDataDir;\r
-extern int nDropMessagesTest;\r
-\r
-// Settings\r
-extern int fGenerateBitcoins;\r
-extern int64 nTransactionFee;\r
-extern CAddress addrIncoming;\r
-extern int fLimitProcessors;\r
-extern int nLimitProcessors;\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-string GetAppDir();\r
-bool CheckDiskSpace(int64 nAdditionalBytes=0);\r
-FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");\r
-FILE* AppendBlockFile(unsigned int& nFileRet);\r
-bool AddKey(const CKey& key);\r
-vector<unsigned char> GenerateNewKey();\r
-bool AddToWallet(const CWalletTx& wtxIn);\r
-void ReacceptWalletTransactions();\r
-void RelayWalletTransactions();\r
-bool LoadBlockIndex(bool fAllowNew=true);\r
-void PrintBlockTree();\r
-bool ProcessMessages(CNode* pfrom);\r
-bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv);\r
-bool SendMessages(CNode* pto);\r
-int64 GetBalance();\r
-bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CKey& keyRet, int64& nFeeRequiredRet);\r
-bool CommitTransactionSpent(const CWalletTx& wtxNew, const CKey& key);\r
-bool SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew);\r
-void GenerateBitcoins(bool fGenerate);\r
-void ThreadBitcoinMiner(void* parg);\r
-bool BitcoinMiner();\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-class CDiskTxPos\r
-{\r
-public:\r
- unsigned int nFile;\r
- unsigned int nBlockPos;\r
- unsigned int nTxPos;\r
-\r
- CDiskTxPos()\r
- {\r
- SetNull();\r
- }\r
-\r
- CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)\r
- {\r
- nFile = nFileIn;\r
- nBlockPos = nBlockPosIn;\r
- nTxPos = nTxPosIn;\r
- }\r
-\r
- IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )\r
- void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }\r
- bool IsNull() const { return (nFile == -1); }\r
-\r
- friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)\r
- {\r
- return (a.nFile == b.nFile &&\r
- a.nBlockPos == b.nBlockPos &&\r
- a.nTxPos == b.nTxPos);\r
- }\r
-\r
- friend bool operator!=(const CDiskTxPos& a, const CDiskTxPos& b)\r
- {\r
- return !(a == b);\r
- }\r
-\r
- string ToString() const\r
- {\r
- if (IsNull())\r
- return strprintf("null");\r
- else\r
- return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s", ToString().c_str());\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-class CInPoint\r
-{\r
-public:\r
- CTransaction* ptx;\r
- unsigned int n;\r
-\r
- CInPoint() { SetNull(); }\r
- CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }\r
- void SetNull() { ptx = NULL; n = -1; }\r
- bool IsNull() const { return (ptx == NULL && n == -1); }\r
-};\r
-\r
-\r
-\r
-\r
-class COutPoint\r
-{\r
-public:\r
- uint256 hash;\r
- unsigned int n;\r
-\r
- COutPoint() { SetNull(); }\r
- COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }\r
- IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )\r
- void SetNull() { hash = 0; n = -1; }\r
- bool IsNull() const { return (hash == 0 && n == -1); }\r
-\r
- friend bool operator<(const COutPoint& a, const COutPoint& b)\r
- {\r
- return (a.hash < b.hash || (a.hash == b.hash && a.n < b.n));\r
- }\r
-\r
- friend bool operator==(const COutPoint& a, const COutPoint& b)\r
- {\r
- return (a.hash == b.hash && a.n == b.n);\r
- }\r
-\r
- friend bool operator!=(const COutPoint& a, const COutPoint& b)\r
- {\r
- return !(a == b);\r
- }\r
-\r
- string ToString() const\r
- {\r
- return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,6).c_str(), n);\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s\n", ToString().c_str());\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-//\r
-// An input of a transaction. It contains the location of the previous\r
-// transaction's output that it claims and a signature that matches the\r
-// output's public key.\r
-//\r
-class CTxIn\r
-{\r
-public:\r
- COutPoint prevout;\r
- CScript scriptSig;\r
- unsigned int nSequence;\r
-\r
- CTxIn()\r
- {\r
- nSequence = UINT_MAX;\r
- }\r
-\r
- explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)\r
- {\r
- prevout = prevoutIn;\r
- scriptSig = scriptSigIn;\r
- nSequence = nSequenceIn;\r
- }\r
-\r
- CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)\r
- {\r
- prevout = COutPoint(hashPrevTx, nOut);\r
- scriptSig = scriptSigIn;\r
- nSequence = nSequenceIn;\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- READWRITE(prevout);\r
- READWRITE(scriptSig);\r
- READWRITE(nSequence);\r
- )\r
-\r
- bool IsFinal() const\r
- {\r
- return (nSequence == UINT_MAX);\r
- }\r
-\r
- friend bool operator==(const CTxIn& a, const CTxIn& b)\r
- {\r
- return (a.prevout == b.prevout &&\r
- a.scriptSig == b.scriptSig &&\r
- a.nSequence == b.nSequence);\r
- }\r
-\r
- friend bool operator!=(const CTxIn& a, const CTxIn& b)\r
- {\r
- return !(a == b);\r
- }\r
-\r
- string ToString() const\r
- {\r
- string str;\r
- str += strprintf("CTxIn(");\r
- str += prevout.ToString();\r
- if (prevout.IsNull())\r
- str += strprintf(", coinbase %s", HexStr(scriptSig.begin(), scriptSig.end(), false).c_str());\r
- else\r
- str += strprintf(", scriptSig=%s", scriptSig.ToString().substr(0,24).c_str());\r
- if (nSequence != UINT_MAX)\r
- str += strprintf(", nSequence=%u", nSequence);\r
- str += ")";\r
- return str;\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s\n", ToString().c_str());\r
- }\r
-\r
- bool IsMine() const;\r
- int64 GetDebit() const;\r
-};\r
-\r
-\r
-\r
-\r
-//\r
-// An output of a transaction. It contains the public key that the next input\r
-// must be able to sign with to claim it.\r
-//\r
-class CTxOut\r
-{\r
-public:\r
- int64 nValue;\r
- CScript scriptPubKey;\r
-\r
-public:\r
- CTxOut()\r
- {\r
- SetNull();\r
- }\r
-\r
- CTxOut(int64 nValueIn, CScript scriptPubKeyIn)\r
- {\r
- nValue = nValueIn;\r
- scriptPubKey = scriptPubKeyIn;\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- READWRITE(nValue);\r
- READWRITE(scriptPubKey);\r
- )\r
-\r
- void SetNull()\r
- {\r
- nValue = -1;\r
- scriptPubKey.clear();\r
- }\r
-\r
- bool IsNull()\r
- {\r
- return (nValue == -1);\r
- }\r
-\r
- uint256 GetHash() const\r
- {\r
- return SerializeHash(*this);\r
- }\r
-\r
- bool IsMine() const\r
- {\r
- return ::IsMine(scriptPubKey);\r
- }\r
-\r
- int64 GetCredit() const\r
- {\r
- if (IsMine())\r
- return nValue;\r
- return 0;\r
- }\r
-\r
- friend bool operator==(const CTxOut& a, const CTxOut& b)\r
- {\r
- return (a.nValue == b.nValue &&\r
- a.scriptPubKey == b.scriptPubKey);\r
- }\r
-\r
- friend bool operator!=(const CTxOut& a, const CTxOut& b)\r
- {\r
- return !(a == b);\r
- }\r
-\r
- string ToString() const\r
- {\r
- if (scriptPubKey.size() < 6)\r
- return "CTxOut(error)";\r
- return strprintf("CTxOut(nValue=%I64d.%08I64d, scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,24).c_str());\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s\n", ToString().c_str());\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-//\r
-// The basic transaction that is broadcasted on the network and contained in\r
-// blocks. A transaction can contain multiple inputs and outputs.\r
-//\r
-class CTransaction\r
-{\r
-public:\r
- int nVersion;\r
- vector<CTxIn> vin;\r
- vector<CTxOut> vout;\r
- int nLockTime;\r
-\r
-\r
- CTransaction()\r
- {\r
- SetNull();\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- READWRITE(this->nVersion);\r
- nVersion = this->nVersion;\r
- READWRITE(vin);\r
- READWRITE(vout);\r
- READWRITE(nLockTime);\r
- )\r
-\r
- void SetNull()\r
- {\r
- nVersion = 1;\r
- vin.clear();\r
- vout.clear();\r
- nLockTime = 0;\r
- }\r
-\r
- bool IsNull() const\r
- {\r
- return (vin.empty() && vout.empty());\r
- }\r
-\r
- uint256 GetHash() const\r
- {\r
- return SerializeHash(*this);\r
- }\r
-\r
- bool IsFinal() const\r
- {\r
- if (nLockTime == 0 || nLockTime < nBestHeight)\r
- return true;\r
- foreach(const CTxIn& txin, vin)\r
- if (!txin.IsFinal())\r
- return false;\r
- return true;\r
- }\r
-\r
- bool IsNewerThan(const CTransaction& old) const\r
- {\r
- if (vin.size() != old.vin.size())\r
- return false;\r
- for (int i = 0; i < vin.size(); i++)\r
- if (vin[i].prevout != old.vin[i].prevout)\r
- return false;\r
-\r
- bool fNewer = false;\r
- unsigned int nLowest = UINT_MAX;\r
- for (int i = 0; i < vin.size(); i++)\r
- {\r
- if (vin[i].nSequence != old.vin[i].nSequence)\r
- {\r
- if (vin[i].nSequence <= nLowest)\r
- {\r
- fNewer = false;\r
- nLowest = vin[i].nSequence;\r
- }\r
- if (old.vin[i].nSequence < nLowest)\r
- {\r
- fNewer = true;\r
- nLowest = old.vin[i].nSequence;\r
- }\r
- }\r
- }\r
- return fNewer;\r
- }\r
-\r
- bool IsCoinBase() const\r
- {\r
- return (vin.size() == 1 && vin[0].prevout.IsNull());\r
- }\r
-\r
- bool CheckTransaction() const\r
- {\r
- // Basic checks that don't depend on any context\r
- if (vin.empty() || vout.empty())\r
- return error("CTransaction::CheckTransaction() : vin or vout empty");\r
-\r
- // Check for negative values\r
- foreach(const CTxOut& txout, vout)\r
- if (txout.nValue < 0)\r
- return error("CTransaction::CheckTransaction() : txout.nValue negative");\r
-\r
- if (IsCoinBase())\r
- {\r
- if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)\r
- return error("CTransaction::CheckTransaction() : coinbase script size");\r
- }\r
- else\r
- {\r
- foreach(const CTxIn& txin, vin)\r
- if (txin.prevout.IsNull())\r
- return error("CTransaction::CheckTransaction() : prevout is null");\r
- }\r
-\r
- return true;\r
- }\r
-\r
- bool IsMine() const\r
- {\r
- foreach(const CTxOut& txout, vout)\r
- if (txout.IsMine())\r
- return true;\r
- return false;\r
- }\r
-\r
- int64 GetDebit() const\r
- {\r
- int64 nDebit = 0;\r
- foreach(const CTxIn& txin, vin)\r
- nDebit += txin.GetDebit();\r
- return nDebit;\r
- }\r
-\r
- int64 GetCredit() const\r
- {\r
- int64 nCredit = 0;\r
- foreach(const CTxOut& txout, vout)\r
- nCredit += txout.GetCredit();\r
- return nCredit;\r
- }\r
-\r
- int64 GetValueOut() const\r
- {\r
- int64 nValueOut = 0;\r
- foreach(const CTxOut& txout, vout)\r
- {\r
- if (txout.nValue < 0)\r
- throw runtime_error("CTransaction::GetValueOut() : negative value");\r
- nValueOut += txout.nValue;\r
- }\r
- return nValueOut;\r
- }\r
-\r
- int64 GetMinFee(bool fDiscount=false) const\r
- {\r
- // Base fee is 1 cent per kilobyte\r
- unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);\r
- int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;\r
-\r
- // First 100 transactions in a block are free\r
- if (fDiscount && nBytes < 10000)\r
- nMinFee = 0;\r
-\r
- // To limit dust spam, require a 0.01 fee if any output is less than 0.01\r
- if (nMinFee < CENT)\r
- foreach(const CTxOut& txout, vout)\r
- if (txout.nValue < CENT)\r
- nMinFee = CENT;\r
-\r
- return nMinFee;\r
- }\r
-\r
-\r
-\r
- bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)\r
- {\r
- CAutoFile filein = OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb");\r
- if (!filein)\r
- return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");\r
-\r
- // Read transaction\r
- if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)\r
- return error("CTransaction::ReadFromDisk() : fseek failed");\r
- filein >> *this;\r
-\r
- // Return file pointer\r
- if (pfileRet)\r
- {\r
- if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)\r
- return error("CTransaction::ReadFromDisk() : second fseek failed");\r
- *pfileRet = filein.release();\r
- }\r
- return true;\r
- }\r
-\r
-\r
- friend bool operator==(const CTransaction& a, const CTransaction& b)\r
- {\r
- return (a.nVersion == b.nVersion &&\r
- a.vin == b.vin &&\r
- a.vout == b.vout &&\r
- a.nLockTime == b.nLockTime);\r
- }\r
-\r
- friend bool operator!=(const CTransaction& a, const CTransaction& b)\r
- {\r
- return !(a == b);\r
- }\r
-\r
-\r
- string ToString() const\r
- {\r
- string str;\r
- str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",\r
- GetHash().ToString().substr(0,6).c_str(),\r
- nVersion,\r
- vin.size(),\r
- vout.size(),\r
- nLockTime);\r
- for (int i = 0; i < vin.size(); i++)\r
- str += " " + vin[i].ToString() + "\n";\r
- for (int i = 0; i < vout.size(); i++)\r
- str += " " + vout[i].ToString() + "\n";\r
- return str;\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s", ToString().c_str());\r
- }\r
-\r
-\r
-\r
- bool DisconnectInputs(CTxDB& txdb);\r
- bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx, int nHeight, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);\r
- bool ClientConnectInputs();\r
-\r
- bool AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);\r
-\r
- bool AcceptTransaction(bool fCheckInputs=true, bool* pfMissingInputs=NULL)\r
- {\r
- CTxDB txdb("r");\r
- return AcceptTransaction(txdb, fCheckInputs, pfMissingInputs);\r
- }\r
-\r
-protected:\r
- bool AddToMemoryPool();\r
-public:\r
- bool RemoveFromMemoryPool();\r
-};\r
-\r
-\r
-\r
-\r
-\r
-//\r
-// A transaction with a merkle branch linking it to the block chain\r
-//\r
-class CMerkleTx : public CTransaction\r
-{\r
-public:\r
- uint256 hashBlock;\r
- vector<uint256> vMerkleBranch;\r
- int nIndex;\r
-\r
- // memory only\r
- mutable bool fMerkleVerified;\r
-\r
-\r
- CMerkleTx()\r
- {\r
- Init();\r
- }\r
-\r
- CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)\r
- {\r
- Init();\r
- }\r
-\r
- void Init()\r
- {\r
- hashBlock = 0;\r
- nIndex = -1;\r
- fMerkleVerified = false;\r
- }\r
-\r
- int64 GetCredit() const\r
- {\r
- // Must wait until coinbase is safely deep enough in the chain before valuing it\r
- if (IsCoinBase() && GetBlocksToMaturity() > 0)\r
- return 0;\r
- return CTransaction::GetCredit();\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);\r
- nVersion = this->nVersion;\r
- READWRITE(hashBlock);\r
- READWRITE(vMerkleBranch);\r
- READWRITE(nIndex);\r
- )\r
-\r
-\r
- int SetMerkleBranch(const CBlock* pblock=NULL);\r
- int GetDepthInMainChain() const;\r
- bool IsInMainChain() const { return GetDepthInMainChain() > 0; }\r
- int GetBlocksToMaturity() const;\r
- bool AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true);\r
- bool AcceptTransaction() { CTxDB txdb("r"); return AcceptTransaction(txdb); }\r
-};\r
-\r
-\r
-\r
-\r
-//\r
-// A transaction with a bunch of additional info that only the owner cares\r
-// about. It includes any unrecorded transactions needed to link it back\r
-// to the block chain.\r
-//\r
-class CWalletTx : public CMerkleTx\r
-{\r
-public:\r
- vector<CMerkleTx> vtxPrev;\r
- map<string, string> mapValue;\r
- vector<pair<string, string> > vOrderForm;\r
- unsigned int fTimeReceivedIsTxTime;\r
- unsigned int nTimeReceived; // time received by this node\r
- char fFromMe;\r
- char fSpent;\r
- //// probably need to sign the order info so know it came from payer\r
-\r
- // memory only\r
- mutable unsigned int nTimeDisplayed;\r
-\r
-\r
- CWalletTx()\r
- {\r
- Init();\r
- }\r
-\r
- CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)\r
- {\r
- Init();\r
- }\r
-\r
- CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)\r
- {\r
- Init();\r
- }\r
-\r
- void Init()\r
- {\r
- fTimeReceivedIsTxTime = false;\r
- nTimeReceived = 0;\r
- fFromMe = false;\r
- fSpent = false;\r
- nTimeDisplayed = 0;\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion, ser_action);\r
- nVersion = this->nVersion;\r
- READWRITE(vtxPrev);\r
- READWRITE(mapValue);\r
- READWRITE(vOrderForm);\r
- READWRITE(fTimeReceivedIsTxTime);\r
- READWRITE(nTimeReceived);\r
- READWRITE(fFromMe);\r
- READWRITE(fSpent);\r
- )\r
-\r
- bool WriteToDisk()\r
- {\r
- return CWalletDB().WriteTx(GetHash(), *this);\r
- }\r
-\r
-\r
- int64 GetTxTime() const;\r
-\r
- void AddSupportingTransactions(CTxDB& txdb);\r
-\r
- bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);\r
- bool AcceptWalletTransaction() { CTxDB txdb("r"); return AcceptWalletTransaction(txdb); }\r
-\r
- void RelayWalletTransaction(CTxDB& txdb);\r
- void RelayWalletTransaction() { CTxDB txdb("r"); RelayWalletTransaction(txdb); }\r
-};\r
-\r
-\r
-\r
-\r
-//\r
-// A txdb record that contains the disk location of a transaction and the\r
-// locations of transactions that spend its outputs. vSpent is really only\r
-// used as a flag, but having the location is very helpful for debugging.\r
-//\r
-class CTxIndex\r
-{\r
-public:\r
- CDiskTxPos pos;\r
- vector<CDiskTxPos> vSpent;\r
-\r
- CTxIndex()\r
- {\r
- SetNull();\r
- }\r
-\r
- CTxIndex(const CDiskTxPos& posIn, unsigned int nOutputs)\r
- {\r
- pos = posIn;\r
- vSpent.resize(nOutputs);\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- if (!(nType & SER_GETHASH))\r
- READWRITE(nVersion);\r
- READWRITE(pos);\r
- READWRITE(vSpent);\r
- )\r
-\r
- void SetNull()\r
- {\r
- pos.SetNull();\r
- vSpent.clear();\r
- }\r
-\r
- bool IsNull()\r
- {\r
- return pos.IsNull();\r
- }\r
-\r
- friend bool operator==(const CTxIndex& a, const CTxIndex& b)\r
- {\r
- if (a.pos != b.pos || a.vSpent.size() != b.vSpent.size())\r
- return false;\r
- for (int i = 0; i < a.vSpent.size(); i++)\r
- if (a.vSpent[i] != b.vSpent[i])\r
- return false;\r
- return true;\r
- }\r
-\r
- friend bool operator!=(const CTxIndex& a, const CTxIndex& b)\r
- {\r
- return !(a == b);\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-\r
-//\r
-// Nodes collect new transactions into a block, hash them into a hash tree,\r
-// and scan through nonce values to make the block's hash satisfy proof-of-work\r
-// requirements. When they solve the proof-of-work, they broadcast the block\r
-// to everyone and the block is added to the block chain. The first transaction\r
-// in the block is a special one that creates a new coin owned by the creator\r
-// of the block.\r
-//\r
-// Blocks are appended to blk0001.dat files on disk. Their location on disk\r
-// is indexed by CBlockIndex objects in memory.\r
-//\r
-class CBlock\r
-{\r
-public:\r
- // header\r
- int nVersion;\r
- uint256 hashPrevBlock;\r
- uint256 hashMerkleRoot;\r
- unsigned int nTime;\r
- unsigned int nBits;\r
- unsigned int nNonce;\r
-\r
- // network and disk\r
- vector<CTransaction> vtx;\r
-\r
- // memory only\r
- mutable vector<uint256> vMerkleTree;\r
-\r
-\r
- CBlock()\r
- {\r
- SetNull();\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- READWRITE(this->nVersion);\r
- nVersion = this->nVersion;\r
- READWRITE(hashPrevBlock);\r
- READWRITE(hashMerkleRoot);\r
- READWRITE(nTime);\r
- READWRITE(nBits);\r
- READWRITE(nNonce);\r
-\r
- // ConnectBlock depends on vtx being last so it can calculate offset\r
- if (!(nType & (SER_GETHASH|SER_BLOCKHEADERONLY)))\r
- READWRITE(vtx);\r
- else if (fRead)\r
- const_cast<CBlock*>(this)->vtx.clear();\r
- )\r
-\r
- void SetNull()\r
- {\r
- nVersion = 1;\r
- hashPrevBlock = 0;\r
- hashMerkleRoot = 0;\r
- nTime = 0;\r
- nBits = 0;\r
- nNonce = 0;\r
- vtx.clear();\r
- vMerkleTree.clear();\r
- }\r
-\r
- bool IsNull() const\r
- {\r
- return (nBits == 0);\r
- }\r
-\r
- uint256 GetHash() const\r
- {\r
- return Hash(BEGIN(nVersion), END(nNonce));\r
- }\r
-\r
-\r
- uint256 BuildMerkleTree() const\r
- {\r
- vMerkleTree.clear();\r
- foreach(const CTransaction& tx, vtx)\r
- vMerkleTree.push_back(tx.GetHash());\r
- int j = 0;\r
- for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)\r
- {\r
- for (int i = 0; i < nSize; i += 2)\r
- {\r
- int i2 = min(i+1, nSize-1);\r
- vMerkleTree.push_back(Hash(BEGIN(vMerkleTree[j+i]), END(vMerkleTree[j+i]),\r
- BEGIN(vMerkleTree[j+i2]), END(vMerkleTree[j+i2])));\r
- }\r
- j += nSize;\r
- }\r
- return (vMerkleTree.empty() ? 0 : vMerkleTree.back());\r
- }\r
-\r
- vector<uint256> GetMerkleBranch(int nIndex) const\r
- {\r
- if (vMerkleTree.empty())\r
- BuildMerkleTree();\r
- vector<uint256> vMerkleBranch;\r
- int j = 0;\r
- for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)\r
- {\r
- int i = min(nIndex^1, nSize-1);\r
- vMerkleBranch.push_back(vMerkleTree[j+i]);\r
- nIndex >>= 1;\r
- j += nSize;\r
- }\r
- return vMerkleBranch;\r
- }\r
-\r
- static uint256 CheckMerkleBranch(uint256 hash, const vector<uint256>& vMerkleBranch, int nIndex)\r
- {\r
- if (nIndex == -1)\r
- return 0;\r
- foreach(const uint256& otherside, vMerkleBranch)\r
- {\r
- if (nIndex & 1)\r
- hash = Hash(BEGIN(otherside), END(otherside), BEGIN(hash), END(hash));\r
- else\r
- hash = Hash(BEGIN(hash), END(hash), BEGIN(otherside), END(otherside));\r
- nIndex >>= 1;\r
- }\r
- return hash;\r
- }\r
-\r
-\r
- bool WriteToDisk(bool fWriteTransactions, unsigned int& nFileRet, unsigned int& nBlockPosRet)\r
- {\r
- // Open history file to append\r
- CAutoFile fileout = AppendBlockFile(nFileRet);\r
- if (!fileout)\r
- return error("CBlock::WriteToDisk() : AppendBlockFile failed");\r
- if (!fWriteTransactions)\r
- fileout.nType |= SER_BLOCKHEADERONLY;\r
-\r
- // Write index header\r
- unsigned int nSize = fileout.GetSerializeSize(*this);\r
- fileout << FLATDATA(pchMessageStart) << nSize;\r
-\r
- // Write block\r
- nBlockPosRet = ftell(fileout);\r
- if (nBlockPosRet == -1)\r
- return error("CBlock::WriteToDisk() : ftell failed");\r
- fileout << *this;\r
-\r
- return true;\r
- }\r
-\r
- bool ReadFromDisk(unsigned int nFile, unsigned int nBlockPos, bool fReadTransactions)\r
- {\r
- SetNull();\r
-\r
- // Open history file to read\r
- CAutoFile filein = OpenBlockFile(nFile, nBlockPos, "rb");\r
- if (!filein)\r
- return error("CBlock::ReadFromDisk() : OpenBlockFile failed");\r
- if (!fReadTransactions)\r
- filein.nType |= SER_BLOCKHEADERONLY;\r
-\r
- // Read block\r
- filein >> *this;\r
-\r
- // Check the header\r
- if (CBigNum().SetCompact(nBits) > bnProofOfWorkLimit)\r
- return error("CBlock::ReadFromDisk() : nBits errors in block header");\r
- if (GetHash() > CBigNum().SetCompact(nBits).getuint256())\r
- return error("CBlock::ReadFromDisk() : GetHash() errors in block header");\r
-\r
- return true;\r
- }\r
-\r
-\r
-\r
- void print() const\r
- {\r
- printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d)\n",\r
- GetHash().ToString().substr(0,14).c_str(),\r
- nVersion,\r
- hashPrevBlock.ToString().substr(0,14).c_str(),\r
- hashMerkleRoot.ToString().substr(0,6).c_str(),\r
- nTime, nBits, nNonce,\r
- vtx.size());\r
- for (int i = 0; i < vtx.size(); i++)\r
- {\r
- printf(" ");\r
- vtx[i].print();\r
- }\r
- printf(" vMerkleTree: ");\r
- for (int i = 0; i < vMerkleTree.size(); i++)\r
- printf("%s ", vMerkleTree[i].ToString().substr(0,6).c_str());\r
- printf("\n");\r
- }\r
-\r
-\r
- int64 GetBlockValue(int64 nFees) const;\r
- bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);\r
- bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);\r
- bool ReadFromDisk(const CBlockIndex* blockindex, bool fReadTransactions);\r
- bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);\r
- bool CheckBlock() const;\r
- bool AcceptBlock();\r
-};\r
-\r
-\r
-\r
-\r
-\r
-\r
-//\r
-// The block chain is a tree shaped structure starting with the\r
-// genesis block at the root, with each block potentially having multiple\r
-// candidates to be the next block. pprev and pnext link a path through the\r
-// main/longest chain. A blockindex may have multiple pprev pointing back\r
-// to it, but pnext will only point forward to the longest branch, or will\r
-// be null if the block is not part of the longest chain.\r
-//\r
-class CBlockIndex\r
-{\r
-public:\r
- const uint256* phashBlock;\r
- CBlockIndex* pprev;\r
- CBlockIndex* pnext;\r
- unsigned int nFile;\r
- unsigned int nBlockPos;\r
- int nHeight;\r
-\r
- // block header\r
- int nVersion;\r
- uint256 hashMerkleRoot;\r
- unsigned int nTime;\r
- unsigned int nBits;\r
- unsigned int nNonce;\r
-\r
-\r
- CBlockIndex()\r
- {\r
- phashBlock = NULL;\r
- pprev = NULL;\r
- pnext = NULL;\r
- nFile = 0;\r
- nBlockPos = 0;\r
- nHeight = 0;\r
-\r
- nVersion = 0;\r
- hashMerkleRoot = 0;\r
- nTime = 0;\r
- nBits = 0;\r
- nNonce = 0;\r
- }\r
-\r
- CBlockIndex(unsigned int nFileIn, unsigned int nBlockPosIn, CBlock& block)\r
- {\r
- phashBlock = NULL;\r
- pprev = NULL;\r
- pnext = NULL;\r
- nFile = nFileIn;\r
- nBlockPos = nBlockPosIn;\r
- nHeight = 0;\r
-\r
- nVersion = block.nVersion;\r
- hashMerkleRoot = block.hashMerkleRoot;\r
- nTime = block.nTime;\r
- nBits = block.nBits;\r
- nNonce = block.nNonce;\r
- }\r
-\r
- uint256 GetBlockHash() const\r
- {\r
- return *phashBlock;\r
- }\r
-\r
- bool IsInMainChain() const\r
- {\r
- return (pnext || this == pindexBest);\r
- }\r
-\r
- bool EraseBlockFromDisk()\r
- {\r
- // Open history file\r
- CAutoFile fileout = OpenBlockFile(nFile, nBlockPos, "rb+");\r
- if (!fileout)\r
- return false;\r
-\r
- // Overwrite with empty null block\r
- CBlock block;\r
- block.SetNull();\r
- fileout << block;\r
-\r
- return true;\r
- }\r
-\r
- enum { nMedianTimeSpan=11 };\r
-\r
- int64 GetMedianTimePast() const\r
- {\r
- unsigned int pmedian[nMedianTimeSpan];\r
- unsigned int* pbegin = &pmedian[nMedianTimeSpan];\r
- unsigned int* pend = &pmedian[nMedianTimeSpan];\r
-\r
- const CBlockIndex* pindex = this;\r
- for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)\r
- *(--pbegin) = pindex->nTime;\r
-\r
- sort(pbegin, pend);\r
- return pbegin[(pend - pbegin)/2];\r
- }\r
-\r
- int64 GetMedianTime() const\r
- {\r
- const CBlockIndex* pindex = this;\r
- for (int i = 0; i < nMedianTimeSpan/2; i++)\r
- {\r
- if (!pindex->pnext)\r
- return nTime;\r
- pindex = pindex->pnext;\r
- }\r
- return pindex->GetMedianTimePast();\r
- }\r
-\r
-\r
-\r
- string ToString() const\r
- {\r
- return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, merkle=%s, hashBlock=%s)",\r
- pprev, pnext, nFile, nBlockPos, nHeight,\r
- hashMerkleRoot.ToString().substr(0,6).c_str(),\r
- GetBlockHash().ToString().substr(0,14).c_str());\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s\n", ToString().c_str());\r
- }\r
-};\r
-\r
-\r
-\r
-//\r
-// Used to marshal pointers into hashes for db storage.\r
-//\r
-class CDiskBlockIndex : public CBlockIndex\r
-{\r
-public:\r
- uint256 hashPrev;\r
- uint256 hashNext;\r
-\r
- CDiskBlockIndex()\r
- {\r
- hashPrev = 0;\r
- hashNext = 0;\r
- }\r
-\r
- explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex)\r
- {\r
- hashPrev = (pprev ? pprev->GetBlockHash() : 0);\r
- hashNext = (pnext ? pnext->GetBlockHash() : 0);\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- if (!(nType & SER_GETHASH))\r
- READWRITE(nVersion);\r
-\r
- READWRITE(hashNext);\r
- READWRITE(nFile);\r
- READWRITE(nBlockPos);\r
- READWRITE(nHeight);\r
-\r
- // block header\r
- READWRITE(this->nVersion);\r
- READWRITE(hashPrev);\r
- READWRITE(hashMerkleRoot);\r
- READWRITE(nTime);\r
- READWRITE(nBits);\r
- READWRITE(nNonce);\r
- )\r
-\r
- uint256 GetBlockHash() const\r
- {\r
- CBlock block;\r
- block.nVersion = nVersion;\r
- block.hashPrevBlock = hashPrev;\r
- block.hashMerkleRoot = hashMerkleRoot;\r
- block.nTime = nTime;\r
- block.nBits = nBits;\r
- block.nNonce = nNonce;\r
- return block.GetHash();\r
- }\r
-\r
-\r
- string ToString() const\r
- {\r
- string str = "CDiskBlockIndex(";\r
- str += CBlockIndex::ToString();\r
- str += strprintf("\n hashBlock=%s, hashPrev=%s, hashNext=%s)",\r
- GetBlockHash().ToString().c_str(),\r
- hashPrev.ToString().substr(0,14).c_str(),\r
- hashNext.ToString().substr(0,14).c_str());\r
- return str;\r
- }\r
-\r
- void print() const\r
- {\r
- printf("%s\n", ToString().c_str());\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//\r
-// Describes a place in the block chain to another node such that if the\r
-// other node doesn't have the same branch, it can find a recent common trunk.\r
-// The further back it is, the further before the fork it may be.\r
-//\r
-class CBlockLocator\r
-{\r
-protected:\r
- vector<uint256> vHave;\r
-public:\r
-\r
- CBlockLocator()\r
- {\r
- }\r
-\r
- explicit CBlockLocator(const CBlockIndex* pindex)\r
- {\r
- Set(pindex);\r
- }\r
-\r
- explicit CBlockLocator(uint256 hashBlock)\r
- {\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);\r
- if (mi != mapBlockIndex.end())\r
- Set((*mi).second);\r
- }\r
-\r
- IMPLEMENT_SERIALIZE\r
- (\r
- if (!(nType & SER_GETHASH))\r
- READWRITE(nVersion);\r
- READWRITE(vHave);\r
- )\r
-\r
- void Set(const CBlockIndex* pindex)\r
- {\r
- vHave.clear();\r
- int nStep = 1;\r
- while (pindex)\r
- {\r
- vHave.push_back(pindex->GetBlockHash());\r
-\r
- // Exponentially larger steps back\r
- for (int i = 0; pindex && i < nStep; i++)\r
- pindex = pindex->pprev;\r
- if (vHave.size() > 10)\r
- nStep *= 2;\r
- }\r
- vHave.push_back(hashGenesisBlock);\r
- }\r
-\r
- CBlockIndex* GetBlockIndex()\r
- {\r
- // Find the first block the caller has in the main chain\r
- foreach(const uint256& hash, vHave)\r
- {\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);\r
- if (mi != mapBlockIndex.end())\r
- {\r
- CBlockIndex* pindex = (*mi).second;\r
- if (pindex->IsInMainChain())\r
- return pindex;\r
- }\r
- }\r
- return pindexGenesisBlock;\r
- }\r
-\r
- uint256 GetBlockHash()\r
- {\r
- // Find the first block the caller has in the main chain\r
- foreach(const uint256& hash, vHave)\r
- {\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);\r
- if (mi != mapBlockIndex.end())\r
- {\r
- CBlockIndex* pindex = (*mi).second;\r
- if (pindex->IsInMainChain())\r
- return hash;\r
- }\r
- }\r
- return hashGenesisBlock;\r
- }\r
-\r
- int GetHeight()\r
- {\r
- CBlockIndex* pindex = GetBlockIndex();\r
- if (!pindex)\r
- return 0;\r
- return pindex->nHeight;\r
- }\r
-};\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-extern map<uint256, CTransaction> mapTransactions;\r
-extern map<uint256, CWalletTx> mapWallet;\r
-extern vector<uint256> vWalletUpdated;\r
-extern CCriticalSection cs_mapWallet;\r
-extern map<vector<unsigned char>, CPrivKey> mapKeys;\r
-extern map<uint160, vector<unsigned char> > mapPubKeys;\r
-extern CCriticalSection cs_mapKeys;\r
-extern CKey keyUser;\r
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+class COutPoint;
+class CInPoint;
+class CDiskTxPos;
+class CCoinBase;
+class CTxIn;
+class CTxOut;
+class CTransaction;
+class CBlock;
+class CBlockIndex;
+class CWalletTx;
+class CKeyItem;
+
+static const unsigned int MAX_BLOCK_SIZE = 1000000;
+static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
+static const int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
+static const int64 COIN = 100000000;
+static const int64 CENT = 1000000;
+static const int64 MAX_MONEY = 21000000 * COIN;
+inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
+static const int COINBASE_MATURITY = 100;
+#ifdef USE_UPNP
+static const int fHaveUPnP = true;
+#else
+static const int fHaveUPnP = false;
+#endif
+
+
+
+
+
+
+extern CCriticalSection cs_main;
+extern map<uint256, CBlockIndex*> mapBlockIndex;
+extern uint256 hashGenesisBlock;
+extern CBigNum bnProofOfWorkLimit;
+extern CBlockIndex* pindexGenesisBlock;
+extern int nBestHeight;
+extern CBigNum bnBestChainWork;
+extern CBigNum bnBestInvalidWork;
+extern uint256 hashBestChain;
+extern CBlockIndex* pindexBest;
+extern unsigned int nTransactionsUpdated;
+extern map<uint256, int> mapRequestCount;
+extern CCriticalSection cs_mapRequestCount;
+extern map<string, string> mapAddressBook;
+extern CCriticalSection cs_mapAddressBook;
+extern vector<unsigned char> vchDefaultKey;
+extern double dHashesPerSec;
+extern int64 nHPSTimerStart;
+
+// Settings
+extern int fGenerateBitcoins;
+extern int64 nTransactionFee;
+extern CAddress addrIncoming;
+extern int fLimitProcessors;
+extern int nLimitProcessors;
+extern int fMinimizeToTray;
+extern int fMinimizeOnClose;
+extern int fUseUPnP;
+
+
+
+
+
+
+
+bool CheckDiskSpace(uint64 nAdditionalBytes=0);
+FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
+FILE* AppendBlockFile(unsigned int& nFileRet);
+bool AddKey(const CKey& key);
+vector<unsigned char> GenerateNewKey();
+bool AddToWallet(const CWalletTx& wtxIn);
+void WalletUpdateSpent(const COutPoint& prevout);
+int ScanForWalletTransactions(CBlockIndex* pindexStart);
+void ReacceptWalletTransactions();
+bool LoadBlockIndex(bool fAllowNew=true);
+void PrintBlockTree();
+bool ProcessMessages(CNode* pfrom);
+bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv);
+bool SendMessages(CNode* pto, bool fSendTrickle);
+int64 GetBalance();
+bool CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
+bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
+bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
+bool BroadcastTransaction(CWalletTx& wtxNew);
+string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
+string SendMoneyToBitcoinAddress(string strAddress, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
+void GenerateBitcoins(bool fGenerate);
+void ThreadBitcoinMiner(void* parg);
+CBlock* CreateNewBlock(CReserveKey& reservekey);
+void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce, int64& nPrevTime);
+void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1);
+bool CheckWork(CBlock* pblock, CReserveKey& reservekey);
+void BitcoinMiner();
+bool CheckProofOfWork(uint256 hash, unsigned int nBits);
+bool IsInitialBlockDownload();
+string GetWarnings(string strFor);
+
+
+
+
+
+
+
+
+
+
+
+
+class CDiskTxPos
+{
+public:
+ unsigned int nFile;
+ unsigned int nBlockPos;
+ unsigned int nTxPos;
+
+ CDiskTxPos()
+ {
+ SetNull();
+ }
+
+ CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)
+ {
+ nFile = nFileIn;
+ nBlockPos = nBlockPosIn;
+ nTxPos = nTxPosIn;
+ }
+
+ IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
+ void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
+ bool IsNull() const { return (nFile == -1); }
+
+ friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
+ {
+ return (a.nFile == b.nFile &&
+ a.nBlockPos == b.nBlockPos &&
+ a.nTxPos == b.nTxPos);
+ }
+
+ friend bool operator!=(const CDiskTxPos& a, const CDiskTxPos& b)
+ {
+ return !(a == b);
+ }
+
+ string ToString() const
+ {
+ if (IsNull())
+ return strprintf("null");
+ else
+ return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
+ }
+
+ void print() const
+ {
+ printf("%s", ToString().c_str());
+ }
+};
+
+
+
+
+class CInPoint
+{
+public:
+ CTransaction* ptx;
+ unsigned int 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); }
+};
+
+
+
+
+class COutPoint
+{
+public:
+ uint256 hash;
+ unsigned int 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); }
+
+ friend bool operator<(const COutPoint& a, const COutPoint& b)
+ {
+ return (a.hash < b.hash || (a.hash == b.hash && a.n < b.n));
+ }
+
+ friend bool operator==(const COutPoint& a, const COutPoint& b)
+ {
+ return (a.hash == b.hash && a.n == b.n);
+ }
+
+ friend bool operator!=(const COutPoint& a, const COutPoint& b)
+ {
+ return !(a == b);
+ }
+
+ string ToString() const
+ {
+ return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,10).c_str(), n);
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+};
+
+
+
+
+//
+// An input of a transaction. It contains the location of the previous
+// transaction's output that it claims and a signature that matches the
+// output's public key.
+//
+class CTxIn
+{
+public:
+ COutPoint prevout;
+ CScript scriptSig;
+ unsigned int nSequence;
+
+ CTxIn()
+ {
+ nSequence = UINT_MAX;
+ }
+
+ explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
+ {
+ prevout = prevoutIn;
+ scriptSig = scriptSigIn;
+ nSequence = nSequenceIn;
+ }
+
+ CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
+ {
+ prevout = COutPoint(hashPrevTx, nOut);
+ scriptSig = scriptSigIn;
+ nSequence = nSequenceIn;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(prevout);
+ READWRITE(scriptSig);
+ READWRITE(nSequence);
+ )
+
+ bool IsFinal() const
+ {
+ return (nSequence == UINT_MAX);
+ }
+
+ friend bool operator==(const CTxIn& a, const CTxIn& b)
+ {
+ return (a.prevout == b.prevout &&
+ a.scriptSig == b.scriptSig &&
+ a.nSequence == b.nSequence);
+ }
+
+ friend bool operator!=(const CTxIn& a, const CTxIn& b)
+ {
+ return !(a == b);
+ }
+
+ string ToString() const
+ {
+ string str;
+ str += strprintf("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 != UINT_MAX)
+ str += strprintf(", nSequence=%u", nSequence);
+ str += ")";
+ return str;
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+
+ bool IsMine() const;
+ int64 GetDebit() const;
+};
+
+
+
+
+//
+// An output of a transaction. It contains the public key that the next input
+// must be able to sign with to claim it.
+//
+class CTxOut
+{
+public:
+ int64 nValue;
+ CScript scriptPubKey;
+
+ CTxOut()
+ {
+ SetNull();
+ }
+
+ CTxOut(int64 nValueIn, CScript scriptPubKeyIn)
+ {
+ nValue = nValueIn;
+ scriptPubKey = scriptPubKeyIn;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(nValue);
+ READWRITE(scriptPubKey);
+ )
+
+ void SetNull()
+ {
+ nValue = -1;
+ scriptPubKey.clear();
+ }
+
+ bool IsNull()
+ {
+ return (nValue == -1);
+ }
+
+ uint256 GetHash() const
+ {
+ return SerializeHash(*this);
+ }
+
+ bool IsMine() const
+ {
+ return ::IsMine(scriptPubKey);
+ }
+
+ int64 GetCredit() const
+ {
+ if (!MoneyRange(nValue))
+ throw runtime_error("CTxOut::GetCredit() : value out of range");
+ return (IsMine() ? nValue : 0);
+ }
+
+ bool IsChange() const
+ {
+ // On a debit transaction, a txout that's mine but isn't in the address book is change
+ vector<unsigned char> vchPubKey;
+ if (ExtractPubKey(scriptPubKey, true, vchPubKey))
+ CRITICAL_BLOCK(cs_mapAddressBook)
+ if (!mapAddressBook.count(PubKeyToAddress(vchPubKey)))
+ return true;
+ return false;
+ }
+
+ int64 GetChange() const
+ {
+ if (!MoneyRange(nValue))
+ throw runtime_error("CTxOut::GetChange() : value out of range");
+ return (IsChange() ? nValue : 0);
+ }
+
+ friend bool operator==(const CTxOut& a, const CTxOut& b)
+ {
+ return (a.nValue == b.nValue &&
+ a.scriptPubKey == b.scriptPubKey);
+ }
+
+ friend bool operator!=(const CTxOut& a, const CTxOut& b)
+ {
+ return !(a == b);
+ }
+
+ string ToString() const
+ {
+ if (scriptPubKey.size() < 6)
+ return "CTxOut(error)";
+ return strprintf("CTxOut(nValue=%"PRI64d".%08"PRI64d", scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30).c_str());
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+};
+
+
+
+
+//
+// The basic transaction that is broadcasted on the network and contained in
+// blocks. A transaction can contain multiple inputs and outputs.
+//
+class CTransaction
+{
+public:
+ int nVersion;
+ vector<CTxIn> vin;
+ vector<CTxOut> vout;
+ unsigned int nLockTime;
+
+
+ CTransaction()
+ {
+ SetNull();
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(this->nVersion);
+ nVersion = this->nVersion;
+ READWRITE(vin);
+ READWRITE(vout);
+ READWRITE(nLockTime);
+ )
+
+ void SetNull()
+ {
+ nVersion = 1;
+ vin.clear();
+ vout.clear();
+ nLockTime = 0;
+ }
+
+ bool IsNull() const
+ {
+ return (vin.empty() && vout.empty());
+ }
+
+ uint256 GetHash() const
+ {
+ return SerializeHash(*this);
+ }
+
+ bool IsFinal(int nBlockHeight=0, int64 nBlockTime=0) const
+ {
+ // Time based nLockTime implemented in 0.1.6
+ if (nLockTime == 0)
+ return true;
+ if (nBlockHeight == 0)
+ nBlockHeight = nBestHeight;
+ if (nBlockTime == 0)
+ nBlockTime = GetAdjustedTime();
+ if ((int64)nLockTime < (nLockTime < 500000000 ? (int64)nBlockHeight : nBlockTime))
+ return true;
+ foreach(const CTxIn& txin, vin)
+ if (!txin.IsFinal())
+ return false;
+ return true;
+ }
+
+ bool IsNewerThan(const CTransaction& old) const
+ {
+ if (vin.size() != old.vin.size())
+ return false;
+ for (int i = 0; i < vin.size(); i++)
+ if (vin[i].prevout != old.vin[i].prevout)
+ return false;
+
+ bool fNewer = false;
+ unsigned int nLowest = UINT_MAX;
+ for (int i = 0; i < vin.size(); i++)
+ {
+ if (vin[i].nSequence != old.vin[i].nSequence)
+ {
+ if (vin[i].nSequence <= nLowest)
+ {
+ fNewer = false;
+ nLowest = vin[i].nSequence;
+ }
+ if (old.vin[i].nSequence < nLowest)
+ {
+ fNewer = true;
+ nLowest = old.vin[i].nSequence;
+ }
+ }
+ }
+ return fNewer;
+ }
+
+ bool IsCoinBase() const
+ {
+ return (vin.size() == 1 && vin[0].prevout.IsNull());
+ }
+
+ int GetSigOpCount() const
+ {
+ int n = 0;
+ foreach(const CTxIn& txin, vin)
+ n += txin.scriptSig.GetSigOpCount();
+ foreach(const CTxOut& txout, vout)
+ n += txout.scriptPubKey.GetSigOpCount();
+ return n;
+ }
+
+ bool IsStandard() const
+ {
+ foreach(const CTxIn& txin, vin)
+ if (!txin.scriptSig.IsPushOnly())
+ return error("nonstandard txin: %s", txin.scriptSig.ToString().c_str());
+ foreach(const CTxOut& txout, vout)
+ if (!::IsStandard(txout.scriptPubKey))
+ return error("nonstandard txout: %s", txout.scriptPubKey.ToString().c_str());
+ return true;
+ }
+
+ bool IsMine() const
+ {
+ foreach(const CTxOut& txout, vout)
+ if (txout.IsMine())
+ return true;
+ return false;
+ }
+
+ bool IsFromMe() const
+ {
+ return (GetDebit() > 0);
+ }
+
+ int64 GetDebit() const
+ {
+ int64 nDebit = 0;
+ foreach(const CTxIn& txin, vin)
+ {
+ nDebit += txin.GetDebit();
+ if (!MoneyRange(nDebit))
+ throw runtime_error("CTransaction::GetDebit() : value out of range");
+ }
+ return nDebit;
+ }
+
+ int64 GetCredit() const
+ {
+ int64 nCredit = 0;
+ foreach(const CTxOut& txout, vout)
+ {
+ nCredit += txout.GetCredit();
+ if (!MoneyRange(nCredit))
+ throw runtime_error("CTransaction::GetCredit() : value out of range");
+ }
+ return nCredit;
+ }
+
+ int64 GetChange() const
+ {
+ if (IsCoinBase())
+ return 0;
+ int64 nChange = 0;
+ foreach(const CTxOut& txout, vout)
+ {
+ nChange += txout.GetChange();
+ if (!MoneyRange(nChange))
+ throw runtime_error("CTransaction::GetChange() : value out of range");
+ }
+ return nChange;
+ }
+
+ int64 GetValueOut() const
+ {
+ int64 nValueOut = 0;
+ foreach(const CTxOut& txout, vout)
+ {
+ nValueOut += txout.nValue;
+ if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
+ throw runtime_error("CTransaction::GetValueOut() : value out of range");
+ }
+ return nValueOut;
+ }
+
+ static bool AllowFree(double dPriority)
+ {
+ // Large (in bytes) low-priority (new, small-coin) transactions
+ // need a fee.
+ return dPriority > COIN * 144 / 250;
+ }
+
+ int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=true) const
+ {
+ // Base fee is 1 cent per kilobyte
+ unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
+ unsigned int nNewBlockSize = nBlockSize + nBytes;
+ int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;
+
+ 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 a 0.01 fee if any output is less than 0.01
+ if (nMinFee < CENT)
+ foreach(const CTxOut& txout, vout)
+ if (txout.nValue < CENT)
+ nMinFee = CENT;
+
+ // 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;
+ }
+
+
+ bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
+ {
+ CAutoFile filein = OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb");
+ if (!filein)
+ return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
+
+ // Read transaction
+ if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
+ return error("CTransaction::ReadFromDisk() : fseek failed");
+ filein >> *this;
+
+ // Return file pointer
+ if (pfileRet)
+ {
+ if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
+ return error("CTransaction::ReadFromDisk() : second fseek failed");
+ *pfileRet = filein.release();
+ }
+ return true;
+ }
+
+ friend bool operator==(const CTransaction& a, const CTransaction& b)
+ {
+ return (a.nVersion == b.nVersion &&
+ a.vin == b.vin &&
+ a.vout == b.vout &&
+ a.nLockTime == b.nLockTime);
+ }
+
+ friend bool operator!=(const CTransaction& a, const CTransaction& b)
+ {
+ return !(a == b);
+ }
+
+
+ string ToString() const
+ {
+ string str;
+ str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
+ GetHash().ToString().substr(0,10).c_str(),
+ nVersion,
+ vin.size(),
+ vout.size(),
+ nLockTime);
+ for (int i = 0; i < vin.size(); i++)
+ str += " " + vin[i].ToString() + "\n";
+ for (int i = 0; i < vout.size(); i++)
+ str += " " + vout[i].ToString() + "\n";
+ return str;
+ }
+
+ void print() const
+ {
+ printf("%s", ToString().c_str());
+ }
+
+
+ bool ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet);
+ bool ReadFromDisk(CTxDB& txdb, COutPoint prevout);
+ bool ReadFromDisk(COutPoint prevout);
+ bool DisconnectInputs(CTxDB& txdb);
+ bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
+ CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);
+ bool ClientConnectInputs();
+ bool CheckTransaction() const;
+ bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
+ bool AcceptToMemoryPool(bool fCheckInputs=true, bool* pfMissingInputs=NULL)
+ {
+ CTxDB txdb("r");
+ return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
+ }
+protected:
+ bool AddToMemoryPoolUnchecked();
+public:
+ bool RemoveFromMemoryPool();
+};
+
+
+
+
+
+//
+// A transaction with a merkle branch linking it to the block chain
+//
+class CMerkleTx : public CTransaction
+{
+public:
+ uint256 hashBlock;
+ vector<uint256> vMerkleBranch;
+ int nIndex;
+
+ // memory only
+ mutable char fMerkleVerified;
+
+
+ CMerkleTx()
+ {
+ Init();
+ }
+
+ CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
+ {
+ Init();
+ }
+
+ void Init()
+ {
+ hashBlock = 0;
+ nIndex = -1;
+ fMerkleVerified = false;
+ }
+
+
+ IMPLEMENT_SERIALIZE
+ (
+ nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);
+ nVersion = this->nVersion;
+ READWRITE(hashBlock);
+ READWRITE(vMerkleBranch);
+ READWRITE(nIndex);
+ )
+
+
+ int SetMerkleBranch(const CBlock* pblock=NULL);
+ int GetDepthInMainChain(int& nHeightRet) const;
+ int GetDepthInMainChain() const { int nHeight; return GetDepthInMainChain(nHeight); }
+ bool IsInMainChain() const { return GetDepthInMainChain() > 0; }
+ int GetBlocksToMaturity() const;
+ bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true);
+ bool AcceptToMemoryPool() { CTxDB txdb("r"); return AcceptToMemoryPool(txdb); }
+};
+
+
+
+
+//
+// A transaction with a bunch of additional info that only the owner cares
+// about. It includes any unrecorded transactions needed to link it back
+// to the block chain.
+//
+class CWalletTx : public CMerkleTx
+{
+public:
+ vector<CMerkleTx> vtxPrev;
+ map<string, string> mapValue;
+ vector<pair<string, string> > vOrderForm;
+ unsigned int fTimeReceivedIsTxTime;
+ unsigned int nTimeReceived; // time received by this node
+ char fFromMe;
+ string strFromAccount;
+ vector<char> vfSpent;
+
+ // memory only
+ mutable char fDebitCached;
+ mutable char fCreditCached;
+ mutable char fAvailableCreditCached;
+ mutable char fChangeCached;
+ mutable int64 nDebitCached;
+ mutable int64 nCreditCached;
+ mutable int64 nAvailableCreditCached;
+ mutable int64 nChangeCached;
+
+ // memory only UI hints
+ mutable unsigned int nTimeDisplayed;
+ mutable int nLinesDisplayed;
+ mutable char fConfirmedDisplayed;
+
+
+ CWalletTx()
+ {
+ Init();
+ }
+
+ CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)
+ {
+ Init();
+ }
+
+ CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)
+ {
+ Init();
+ }
+
+ void Init()
+ {
+ vtxPrev.clear();
+ mapValue.clear();
+ vOrderForm.clear();
+ fTimeReceivedIsTxTime = false;
+ nTimeReceived = 0;
+ fFromMe = false;
+ strFromAccount.clear();
+ vfSpent.clear();
+ fDebitCached = false;
+ fCreditCached = false;
+ fAvailableCreditCached = false;
+ fChangeCached = false;
+ nDebitCached = 0;
+ nCreditCached = 0;
+ nAvailableCreditCached = 0;
+ nChangeCached = 0;
+ nTimeDisplayed = 0;
+ nLinesDisplayed = 0;
+ fConfirmedDisplayed = false;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ CWalletTx* pthis = const_cast<CWalletTx*>(this);
+ if (fRead)
+ pthis->Init();
+ char fSpent = false;
+
+ if (!fRead)
+ {
+ pthis->mapValue["fromaccount"] = pthis->strFromAccount;
+
+ string str;
+ foreach(char f, vfSpent)
+ {
+ str += (f ? '1' : '0');
+ if (f)
+ fSpent = true;
+ }
+ pthis->mapValue["spent"] = str;
+ }
+
+ nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
+ READWRITE(vtxPrev);
+ READWRITE(mapValue);
+ READWRITE(vOrderForm);
+ READWRITE(fTimeReceivedIsTxTime);
+ READWRITE(nTimeReceived);
+ READWRITE(fFromMe);
+ READWRITE(fSpent);
+
+ if (fRead)
+ {
+ pthis->strFromAccount = pthis->mapValue["fromaccount"];
+
+ if (mapValue.count("spent"))
+ foreach(char c, pthis->mapValue["spent"])
+ pthis->vfSpent.push_back(c != '0');
+ else
+ pthis->vfSpent.assign(vout.size(), fSpent);
+ }
+
+ pthis->mapValue.erase("fromaccount");
+ pthis->mapValue.erase("version");
+ pthis->mapValue.erase("spent");
+ )
+
+ // marks certain txout's as spent
+ // returns true if any update took place
+ bool UpdateSpent(const vector<char>& vfNewSpent)
+ {
+ bool fReturn = false;
+ for (int i=0; i < vfNewSpent.size(); i++)
+ {
+ if (i == vfSpent.size())
+ break;
+
+ if (vfNewSpent[i] && !vfSpent[i])
+ {
+ vfSpent[i] = true;
+ fReturn = true;
+ fAvailableCreditCached = false;
+ }
+ }
+ return fReturn;
+ }
+
+ void MarkDirty()
+ {
+ fCreditCached = false;
+ fAvailableCreditCached = false;
+ fDebitCached = false;
+ fChangeCached = false;
+ }
+
+ void MarkSpent(unsigned int nOut)
+ {
+ if (nOut >= vout.size())
+ throw runtime_error("CWalletTx::MarkSpent() : nOut out of range");
+ vfSpent.resize(vout.size());
+ if (!vfSpent[nOut])
+ {
+ vfSpent[nOut] = true;
+ fAvailableCreditCached = false;
+ }
+ }
+
+ bool IsSpent(unsigned int nOut) const
+ {
+ if (nOut >= vout.size())
+ throw runtime_error("CWalletTx::IsSpent() : nOut out of range");
+ if (nOut >= vfSpent.size())
+ return false;
+ return (!!vfSpent[nOut]);
+ }
+
+ int64 GetDebit() const
+ {
+ if (vin.empty())
+ return 0;
+ if (fDebitCached)
+ return nDebitCached;
+ nDebitCached = CTransaction::GetDebit();
+ fDebitCached = true;
+ return nDebitCached;
+ }
+
+ int64 GetCredit(bool fUseCache=true) const
+ {
+ // Must wait until coinbase is safely deep enough in the chain before valuing it
+ if (IsCoinBase() && GetBlocksToMaturity() > 0)
+ return 0;
+
+ // GetBalance can assume transactions in mapWallet won't change
+ if (fUseCache && fCreditCached)
+ return nCreditCached;
+ nCreditCached = CTransaction::GetCredit();
+ fCreditCached = true;
+ return nCreditCached;
+ }
+
+ int64 GetAvailableCredit(bool fUseCache=true) const
+ {
+ // Must wait until coinbase is safely deep enough in the chain before valuing it
+ if (IsCoinBase() && GetBlocksToMaturity() > 0)
+ return 0;
+
+ if (fUseCache && fAvailableCreditCached)
+ return nAvailableCreditCached;
+
+ int64 nCredit = 0;
+ for (int i = 0; i < vout.size(); i++)
+ {
+ if (!IsSpent(i))
+ {
+ const CTxOut &txout = vout[i];
+ nCredit += txout.GetCredit();
+ if (!MoneyRange(nCredit))
+ throw runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
+ }
+ }
+
+ nAvailableCreditCached = nCredit;
+ fAvailableCreditCached = true;
+ return nCredit;
+ }
+
+
+ int64 GetChange() const
+ {
+ if (fChangeCached)
+ return nChangeCached;
+ nChangeCached = CTransaction::GetChange();
+ fChangeCached = true;
+ return nChangeCached;
+ }
+
+ void GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<string /* address */, int64> >& listReceived,
+ list<pair<string /* address */, int64> >& listSent, int64& nFee, string& strSentAccount) const;
+
+ void GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
+ int64& nSent, int64& nFee) const;
+
+ bool IsFromMe() const
+ {
+ return (GetDebit() > 0);
+ }
+
+ bool IsConfirmed() const
+ {
+ // Quick answer in most cases
+ if (!IsFinal())
+ return false;
+ if (GetDepthInMainChain() >= 1)
+ return true;
+ if (!IsFromMe()) // using wtx's cached debit
+ return false;
+
+ // If no confirmations but it's from us, we can still
+ // consider it confirmed if all dependencies are confirmed
+ map<uint256, const CMerkleTx*> mapPrev;
+ vector<const CMerkleTx*> vWorkQueue;
+ vWorkQueue.reserve(vtxPrev.size()+1);
+ vWorkQueue.push_back(this);
+ for (int i = 0; i < vWorkQueue.size(); i++)
+ {
+ const CMerkleTx* ptx = vWorkQueue[i];
+
+ if (!ptx->IsFinal())
+ return false;
+ if (ptx->GetDepthInMainChain() >= 1)
+ return true;
+ if (!ptx->IsFromMe())
+ return false;
+
+ if (mapPrev.empty())
+ foreach(const CMerkleTx& tx, vtxPrev)
+ mapPrev[tx.GetHash()] = &tx;
+
+ foreach(const CTxIn& txin, ptx->vin)
+ {
+ if (!mapPrev.count(txin.prevout.hash))
+ return false;
+ vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
+ }
+ }
+ return true;
+ }
+
+ bool WriteToDisk()
+ {
+ return CWalletDB().WriteTx(GetHash(), *this);
+ }
+
+
+ int64 GetTxTime() const;
+ int GetRequestCount() const;
+
+ void AddSupportingTransactions(CTxDB& txdb);
+
+ bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
+ bool AcceptWalletTransaction() { CTxDB txdb("r"); return AcceptWalletTransaction(txdb); }
+
+ void RelayWalletTransaction(CTxDB& txdb);
+ void RelayWalletTransaction() { CTxDB txdb("r"); RelayWalletTransaction(txdb); }
+};
+
+
+
+
+//
+// A txdb record that contains the disk location of a transaction and the
+// locations of transactions that spend its outputs. vSpent is really only
+// used as a flag, but having the location is very helpful for debugging.
+//
+class CTxIndex
+{
+public:
+ CDiskTxPos pos;
+ vector<CDiskTxPos> vSpent;
+
+ CTxIndex()
+ {
+ SetNull();
+ }
+
+ CTxIndex(const CDiskTxPos& posIn, unsigned int nOutputs)
+ {
+ pos = posIn;
+ vSpent.resize(nOutputs);
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ READWRITE(pos);
+ READWRITE(vSpent);
+ )
+
+ void SetNull()
+ {
+ pos.SetNull();
+ vSpent.clear();
+ }
+
+ bool IsNull()
+ {
+ return pos.IsNull();
+ }
+
+ friend bool operator==(const CTxIndex& a, const CTxIndex& b)
+ {
+ return (a.pos == b.pos &&
+ a.vSpent == b.vSpent);
+ }
+
+ friend bool operator!=(const CTxIndex& a, const CTxIndex& b)
+ {
+ return !(a == b);
+ }
+ int GetDepthInMainChain() const;
+};
+
+
+
+
+
+//
+// Nodes collect new transactions into a block, hash them into a hash tree,
+// and scan through nonce values to make the block's hash satisfy proof-of-work
+// requirements. When they solve the proof-of-work, they broadcast the block
+// to everyone and the block is added to the block chain. The first transaction
+// in the block is a special one that creates a new coin owned by the creator
+// of the block.
+//
+// Blocks are appended to blk0001.dat files on disk. Their location on disk
+// is indexed by CBlockIndex objects in memory.
+//
+class CBlock
+{
+public:
+ // header
+ int nVersion;
+ uint256 hashPrevBlock;
+ uint256 hashMerkleRoot;
+ unsigned int nTime;
+ unsigned int nBits;
+ unsigned int nNonce;
+
+ // network and disk
+ vector<CTransaction> vtx;
+
+ // memory only
+ mutable vector<uint256> vMerkleTree;
+
+
+ CBlock()
+ {
+ SetNull();
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(this->nVersion);
+ nVersion = this->nVersion;
+ READWRITE(hashPrevBlock);
+ READWRITE(hashMerkleRoot);
+ READWRITE(nTime);
+ READWRITE(nBits);
+ READWRITE(nNonce);
+
+ // ConnectBlock depends on vtx being last so it can calculate offset
+ if (!(nType & (SER_GETHASH|SER_BLOCKHEADERONLY)))
+ READWRITE(vtx);
+ else if (fRead)
+ const_cast<CBlock*>(this)->vtx.clear();
+ )
+
+ void SetNull()
+ {
+ nVersion = 1;
+ hashPrevBlock = 0;
+ hashMerkleRoot = 0;
+ nTime = 0;
+ nBits = 0;
+ nNonce = 0;
+ vtx.clear();
+ vMerkleTree.clear();
+ }
+
+ bool IsNull() const
+ {
+ return (nBits == 0);
+ }
+
+ uint256 GetHash() const
+ {
+ return Hash(BEGIN(nVersion), END(nNonce));
+ }
+
+ int64 GetBlockTime() const
+ {
+ return (int64)nTime;
+ }
+
+ int GetSigOpCount() const
+ {
+ int n = 0;
+ foreach(const CTransaction& tx, vtx)
+ n += tx.GetSigOpCount();
+ return n;
+ }
+
+
+ uint256 BuildMerkleTree() const
+ {
+ vMerkleTree.clear();
+ foreach(const CTransaction& tx, vtx)
+ vMerkleTree.push_back(tx.GetHash());
+ int j = 0;
+ for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
+ {
+ for (int i = 0; i < nSize; i += 2)
+ {
+ int i2 = 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])));
+ }
+ j += nSize;
+ }
+ return (vMerkleTree.empty() ? 0 : vMerkleTree.back());
+ }
+
+ vector<uint256> GetMerkleBranch(int nIndex) const
+ {
+ if (vMerkleTree.empty())
+ BuildMerkleTree();
+ vector<uint256> vMerkleBranch;
+ int j = 0;
+ for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
+ {
+ 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 vector<uint256>& vMerkleBranch, int nIndex)
+ {
+ if (nIndex == -1)
+ return 0;
+ foreach(const uint256& otherside, vMerkleBranch)
+ {
+ if (nIndex & 1)
+ hash = Hash(BEGIN(otherside), END(otherside), BEGIN(hash), END(hash));
+ else
+ hash = Hash(BEGIN(hash), END(hash), BEGIN(otherside), END(otherside));
+ nIndex >>= 1;
+ }
+ return hash;
+ }
+
+
+ bool WriteToDisk(unsigned int& nFileRet, unsigned int& nBlockPosRet)
+ {
+ // Open history file to append
+ CAutoFile fileout = AppendBlockFile(nFileRet);
+ if (!fileout)
+ return error("CBlock::WriteToDisk() : AppendBlockFile failed");
+
+ // Write index header
+ unsigned int nSize = fileout.GetSerializeSize(*this);
+ fileout << FLATDATA(pchMessageStart) << nSize;
+
+ // Write block
+ nBlockPosRet = ftell(fileout);
+ if (nBlockPosRet == -1)
+ return error("CBlock::WriteToDisk() : ftell failed");
+ fileout << *this;
+
+ // Flush stdio buffers and commit to disk before returning
+ fflush(fileout);
+ if (!IsInitialBlockDownload() || (nBestHeight+1) % 500 == 0)
+ {
+#ifdef __WXMSW__
+ _commit(_fileno(fileout));
+#else
+ fsync(fileno(fileout));
+#endif
+ }
+
+ return true;
+ }
+
+ bool ReadFromDisk(unsigned int nFile, unsigned int nBlockPos, bool fReadTransactions=true)
+ {
+ SetNull();
+
+ // Open history file to read
+ CAutoFile filein = OpenBlockFile(nFile, nBlockPos, "rb");
+ if (!filein)
+ return error("CBlock::ReadFromDisk() : OpenBlockFile failed");
+ if (!fReadTransactions)
+ filein.nType |= SER_BLOCKHEADERONLY;
+
+ // Read block
+ filein >> *this;
+
+ // Check the header
+ if (!CheckProofOfWork(GetHash(), nBits))
+ return error("CBlock::ReadFromDisk() : errors in block header");
+
+ return true;
+ }
+
+
+
+ void print() const
+ {
+ printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d)\n",
+ GetHash().ToString().substr(0,20).c_str(),
+ nVersion,
+ hashPrevBlock.ToString().substr(0,20).c_str(),
+ hashMerkleRoot.ToString().substr(0,10).c_str(),
+ nTime, nBits, nNonce,
+ vtx.size());
+ for (int i = 0; i < vtx.size(); i++)
+ {
+ printf(" ");
+ vtx[i].print();
+ }
+ printf(" vMerkleTree: ");
+ for (int i = 0; i < vMerkleTree.size(); i++)
+ printf("%s ", vMerkleTree[i].ToString().substr(0,10).c_str());
+ printf("\n");
+ }
+
+
+ bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ 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 AcceptBlock();
+};
+
+
+
+
+
+
+//
+// The block chain is a tree shaped structure starting with the
+// genesis block at the root, with each block potentially having multiple
+// candidates to be the next block. pprev and pnext link a path through the
+// main/longest chain. A blockindex may have multiple pprev pointing back
+// to it, but pnext will only point forward to the longest branch, or will
+// be null if the block is not part of the longest chain.
+//
+class CBlockIndex
+{
+public:
+ const uint256* phashBlock;
+ CBlockIndex* pprev;
+ CBlockIndex* pnext;
+ unsigned int nFile;
+ unsigned int nBlockPos;
+ int nHeight;
+ CBigNum bnChainWork;
+
+ // block header
+ int nVersion;
+ uint256 hashMerkleRoot;
+ unsigned int nTime;
+ unsigned int nBits;
+ unsigned int nNonce;
+
+
+ CBlockIndex()
+ {
+ phashBlock = NULL;
+ pprev = NULL;
+ pnext = NULL;
+ nFile = 0;
+ nBlockPos = 0;
+ nHeight = 0;
+ bnChainWork = 0;
+
+ nVersion = 0;
+ hashMerkleRoot = 0;
+ nTime = 0;
+ nBits = 0;
+ nNonce = 0;
+ }
+
+ CBlockIndex(unsigned int nFileIn, unsigned int nBlockPosIn, CBlock& block)
+ {
+ phashBlock = NULL;
+ pprev = NULL;
+ pnext = NULL;
+ nFile = nFileIn;
+ nBlockPos = nBlockPosIn;
+ nHeight = 0;
+ bnChainWork = 0;
+
+ nVersion = block.nVersion;
+ hashMerkleRoot = block.hashMerkleRoot;
+ nTime = block.nTime;
+ nBits = block.nBits;
+ nNonce = block.nNonce;
+ }
+
+ CBlock GetBlockHeader() const
+ {
+ CBlock block;
+ block.nVersion = nVersion;
+ if (pprev)
+ block.hashPrevBlock = pprev->GetBlockHash();
+ block.hashMerkleRoot = hashMerkleRoot;
+ block.nTime = nTime;
+ block.nBits = nBits;
+ block.nNonce = nNonce;
+ return block;
+ }
+
+ uint256 GetBlockHash() const
+ {
+ return *phashBlock;
+ }
+
+ int64 GetBlockTime() const
+ {
+ return (int64)nTime;
+ }
+
+ CBigNum GetBlockWork() const
+ {
+ CBigNum bnTarget;
+ bnTarget.SetCompact(nBits);
+ if (bnTarget <= 0)
+ return 0;
+ return (CBigNum(1)<<256) / (bnTarget+1);
+ }
+
+ bool IsInMainChain() const
+ {
+ return (pnext || this == pindexBest);
+ }
+
+ bool CheckIndex() const
+ {
+ return CheckProofOfWork(GetBlockHash(), nBits);
+ }
+
+ bool EraseBlockFromDisk()
+ {
+ // Open history file
+ CAutoFile fileout = OpenBlockFile(nFile, nBlockPos, "rb+");
+ if (!fileout)
+ return false;
+
+ // Overwrite with empty null block
+ CBlock block;
+ block.SetNull();
+ fileout << block;
+
+ return true;
+ }
+
+ enum { nMedianTimeSpan=11 };
+
+ int64 GetMedianTimePast() const
+ {
+ int64 pmedian[nMedianTimeSpan];
+ int64* pbegin = &pmedian[nMedianTimeSpan];
+ int64* pend = &pmedian[nMedianTimeSpan];
+
+ const CBlockIndex* pindex = this;
+ for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)
+ *(--pbegin) = pindex->GetBlockTime();
+
+ sort(pbegin, pend);
+ return pbegin[(pend - pbegin)/2];
+ }
+
+ int64 GetMedianTime() const
+ {
+ const CBlockIndex* pindex = this;
+ for (int i = 0; i < nMedianTimeSpan/2; i++)
+ {
+ if (!pindex->pnext)
+ return GetBlockTime();
+ pindex = pindex->pnext;
+ }
+ return pindex->GetMedianTimePast();
+ }
+
+
+
+ string ToString() const
+ {
+ return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, merkle=%s, hashBlock=%s)",
+ pprev, pnext, nFile, nBlockPos, nHeight,
+ hashMerkleRoot.ToString().substr(0,10).c_str(),
+ GetBlockHash().ToString().substr(0,20).c_str());
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+};
+
+
+
+//
+// Used to marshal pointers into hashes for db storage.
+//
+class CDiskBlockIndex : public CBlockIndex
+{
+public:
+ uint256 hashPrev;
+ uint256 hashNext;
+
+ CDiskBlockIndex()
+ {
+ hashPrev = 0;
+ hashNext = 0;
+ }
+
+ explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex)
+ {
+ hashPrev = (pprev ? pprev->GetBlockHash() : 0);
+ hashNext = (pnext ? pnext->GetBlockHash() : 0);
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+
+ READWRITE(hashNext);
+ READWRITE(nFile);
+ READWRITE(nBlockPos);
+ READWRITE(nHeight);
+
+ // block header
+ READWRITE(this->nVersion);
+ READWRITE(hashPrev);
+ READWRITE(hashMerkleRoot);
+ READWRITE(nTime);
+ READWRITE(nBits);
+ READWRITE(nNonce);
+ )
+
+ uint256 GetBlockHash() const
+ {
+ CBlock block;
+ block.nVersion = nVersion;
+ block.hashPrevBlock = hashPrev;
+ block.hashMerkleRoot = hashMerkleRoot;
+ block.nTime = nTime;
+ block.nBits = nBits;
+ block.nNonce = nNonce;
+ return block.GetHash();
+ }
+
+
+ string ToString() const
+ {
+ 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());
+ return str;
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+};
+
+
+
+
+
+
+
+
+//
+// Describes a place in the block chain to another node such that if the
+// other node doesn't have the same branch, it can find a recent common trunk.
+// The further back it is, the further before the fork it may be.
+//
+class CBlockLocator
+{
+protected:
+ vector<uint256> vHave;
+public:
+
+ CBlockLocator()
+ {
+ }
+
+ explicit CBlockLocator(const CBlockIndex* pindex)
+ {
+ Set(pindex);
+ }
+
+ explicit CBlockLocator(uint256 hashBlock)
+ {
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+ if (mi != mapBlockIndex.end())
+ Set((*mi).second);
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ READWRITE(vHave);
+ )
+
+ void SetNull()
+ {
+ vHave.clear();
+ }
+
+ bool IsNull()
+ {
+ return vHave.empty();
+ }
+
+ void Set(const CBlockIndex* pindex)
+ {
+ vHave.clear();
+ int nStep = 1;
+ while (pindex)
+ {
+ vHave.push_back(pindex->GetBlockHash());
+
+ // Exponentially larger steps back
+ for (int i = 0; pindex && i < nStep; i++)
+ pindex = pindex->pprev;
+ if (vHave.size() > 10)
+ nStep *= 2;
+ }
+ vHave.push_back(hashGenesisBlock);
+ }
+
+ int GetDistanceBack()
+ {
+ // Retrace how far back it was in the sender's branch
+ int nDistance = 0;
+ int nStep = 1;
+ foreach(const uint256& hash, vHave)
+ {
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ if (mi != mapBlockIndex.end())
+ {
+ CBlockIndex* pindex = (*mi).second;
+ if (pindex->IsInMainChain())
+ return nDistance;
+ }
+ nDistance += nStep;
+ if (nDistance > 10)
+ nStep *= 2;
+ }
+ return nDistance;
+ }
+
+ CBlockIndex* GetBlockIndex()
+ {
+ // Find the first block the caller has in the main chain
+ foreach(const uint256& hash, vHave)
+ {
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ if (mi != mapBlockIndex.end())
+ {
+ CBlockIndex* pindex = (*mi).second;
+ if (pindex->IsInMainChain())
+ return pindex;
+ }
+ }
+ return pindexGenesisBlock;
+ }
+
+ uint256 GetBlockHash()
+ {
+ // Find the first block the caller has in the main chain
+ foreach(const uint256& hash, vHave)
+ {
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
+ if (mi != mapBlockIndex.end())
+ {
+ CBlockIndex* pindex = (*mi).second;
+ if (pindex->IsInMainChain())
+ return hash;
+ }
+ }
+ return hashGenesisBlock;
+ }
+
+ int GetHeight()
+ {
+ CBlockIndex* pindex = GetBlockIndex();
+ if (!pindex)
+ return 0;
+ return pindex->nHeight;
+ }
+};
+
+
+
+
+
+
+//
+// Private key that includes an expiration date in case it never gets used.
+//
+class CWalletKey
+{
+public:
+ CPrivKey vchPrivKey;
+ int64 nTimeCreated;
+ int64 nTimeExpires;
+ string strComment;
+ //// todo: add something to note what created it (user, getnewaddress, change)
+ //// maybe should have a map<string, string> property map
+
+ CWalletKey(int64 nExpires=0)
+ {
+ nTimeCreated = (nExpires ? GetTime() : 0);
+ nTimeExpires = nExpires;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ READWRITE(vchPrivKey);
+ READWRITE(nTimeCreated);
+ READWRITE(nTimeExpires);
+ READWRITE(strComment);
+ )
+};
+
+
+
+
+
+
+//
+// Account information.
+// Stored in wallet with key "acc"+string account name
+//
+class CAccount
+{
+public:
+ vector<unsigned char> vchPubKey;
+
+ CAccount()
+ {
+ SetNull();
+ }
+
+ void SetNull()
+ {
+ vchPubKey.clear();
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ READWRITE(vchPubKey);
+ )
+};
+
+
+
+//
+// Internal transfers.
+// Database key is acentry<account><counter>
+//
+class CAccountingEntry
+{
+public:
+ string strAccount;
+ int64 nCreditDebit;
+ int64 nTime;
+ string strOtherAccount;
+ string strComment;
+
+ CAccountingEntry()
+ {
+ SetNull();
+ }
+
+ void SetNull()
+ {
+ nCreditDebit = 0;
+ nTime = 0;
+ strAccount.clear();
+ strOtherAccount.clear();
+ strComment.clear();
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ // Note: strAccount is serialized as part of the key, not here.
+ READWRITE(nCreditDebit);
+ READWRITE(nTime);
+ READWRITE(strOtherAccount);
+ READWRITE(strComment);
+ )
+};
+
+
+
+
+
+
+
+
+
+//
+// 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;
+ set<int> setCancel;
+ int nMinVer; // lowest version inclusive
+ int nMaxVer; // highest version inclusive
+ set<string> setSubVer; // empty matches all
+ int nPriority;
+
+ // Actions
+ string strComment;
+ string strStatusBar;
+ 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();
+ }
+
+ string ToString() const
+ {
+ string strSetCancel;
+ foreach(int n, setCancel)
+ strSetCancel += strprintf("%d ", n);
+ string strSetSubVer;
+ foreach(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());
+ }
+};
+
+class CAlert : public CUnsignedAlert
+{
+public:
+ vector<unsigned char> vchMsg;
+ 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, string strSubVerIn) const
+ {
+ return (IsInEffect() &&
+ nMinVer <= nVersion && nVersion <= nMaxVer &&
+ (setSubVer.empty() || setSubVer.count(strSubVerIn)));
+ }
+
+ bool AppliesToMe() const
+ {
+ return AppliesTo(VERSION, ::pszSubVer);
+ }
+
+ 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("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284")))
+ 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);
+ sMsg >> *(CUnsignedAlert*)this;
+ return true;
+ }
+
+ bool ProcessAlert();
+};
+
+
+
+
+
+
+
+
+
+
+extern map<uint256, CTransaction> mapTransactions;
+extern map<uint256, CWalletTx> mapWallet;
+extern vector<uint256> vWalletUpdated;
+extern CCriticalSection cs_mapWallet;
+extern map<vector<unsigned char>, CPrivKey> mapKeys;
+extern map<uint160, vector<unsigned char> > mapPubKeys;
+extern CCriticalSection cs_mapKeys;
+extern CKey keyUser;
git://git.novaco.in / novacoin.git / blobdiff