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-rw-r--r--main.h2846
1 files changed, 1423 insertions, 1423 deletions
diff --git a/main.h b/main.h
index d8f257b7df..8692579f63 100644
--- a/main.h
+++ b/main.h
@@ -1,1423 +1,1423 @@
-// 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_SIZE = 0x02000000;
-static const int64 COIN = 100000000;
-static const int64 CENT = 1000000;
-static const int COINBASE_MATURITY = 100;
-
-static const CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
-
-
-
-
-
-
-extern CCriticalSection cs_main;
-extern map<uint256, CBlockIndex*> mapBlockIndex;
-extern const uint256 hashGenesisBlock;
-extern CBlockIndex* pindexGenesisBlock;
-extern int nBestHeight;
-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;
-
-// Settings
-extern int fGenerateBitcoins;
-extern int64 nTransactionFee;
-extern CAddress addrIncoming;
-extern int fLimitProcessors;
-extern int nLimitProcessors;
-extern int fMinimizeToTray;
-extern int fMinimizeOnClose;
-
-
-
-
-
-
-
-bool CheckDiskSpace(int64 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);
-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(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CKey& keyRet, int64& nFeeRequiredRet);
-bool CommitTransaction(CWalletTx& wtxNew, const CKey& key);
-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);
-void BitcoinMiner();
-
-
-
-
-
-
-
-
-
-
-
-
-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(0,6).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.begin(), scriptSig.end(), false).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;
-
-public:
- 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 (IsMine())
- return nValue;
- return 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(0,24).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(int64 nBlockTime=0) const
- {
- // Time based nLockTime implemented in 0.1.6,
- // do not use time based until most 0.1.5 nodes have upgraded.
- if (nLockTime == 0)
- return true;
- if (nBlockTime == 0)
- nBlockTime = GetAdjustedTime();
- if (nLockTime < (nLockTime < 500000000 ? nBestHeight : 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());
- }
-
- bool CheckTransaction() const
- {
- // Basic checks that don't depend on any context
- if (vin.empty() || vout.empty())
- return error("CTransaction::CheckTransaction() : vin or vout empty");
-
- // Check for negative values
- foreach(const CTxOut& txout, vout)
- if (txout.nValue < 0)
- return error("CTransaction::CheckTransaction() : txout.nValue negative");
-
- if (IsCoinBase())
- {
- if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
- return error("CTransaction::CheckTransaction() : coinbase script size");
- }
- else
- {
- foreach(const CTxIn& txin, vin)
- if (txin.prevout.IsNull())
- return error("CTransaction::CheckTransaction() : prevout is null");
- }
-
- return true;
- }
-
- bool IsMine() const
- {
- foreach(const CTxOut& txout, vout)
- if (txout.IsMine())
- return true;
- return false;
- }
-
- int64 GetDebit() const
- {
- int64 nDebit = 0;
- foreach(const CTxIn& txin, vin)
- nDebit += txin.GetDebit();
- return nDebit;
- }
-
- int64 GetCredit() const
- {
- int64 nCredit = 0;
- foreach(const CTxOut& txout, vout)
- nCredit += txout.GetCredit();
- return nCredit;
- }
-
- int64 GetValueOut() const
- {
- int64 nValueOut = 0;
- foreach(const CTxOut& txout, vout)
- {
- if (txout.nValue < 0)
- throw runtime_error("CTransaction::GetValueOut() : negative value");
- nValueOut += txout.nValue;
- }
- return nValueOut;
- }
-
- int64 GetMinFee(unsigned int nBlockSize=1) const
- {
- // Base fee is 1 cent per kilobyte
- unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
- int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;
-
- // Transactions under 60K are free as long as block size is under 80K
- // (about 27,000bc if made of 50bc inputs)
- if (nBytes < 60000 && nBlockSize < 80000)
- nMinFee = 0;
-
- // Transactions under 3K are free as long as block size is under 200K
- if (nBytes < 3000 && nBlockSize < 200000)
- 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;
-
- 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(0,6).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 DisconnectInputs(CTxDB& txdb);
- bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx, int nHeight, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);
- bool ClientConnectInputs();
-
- bool AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
-
- bool AcceptTransaction(bool fCheckInputs=true, bool* pfMissingInputs=NULL)
- {
- CTxDB txdb("r");
- return AcceptTransaction(txdb, fCheckInputs, pfMissingInputs);
- }
-
-protected:
- bool AddToMemoryPool();
-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 bool fMerkleVerified;
- mutable bool fGetCreditCached;
- mutable int64 nGetCreditCached;
-
-
- CMerkleTx()
- {
- Init();
- }
-
- CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
- {
- Init();
- }
-
- void Init()
- {
- hashBlock = 0;
- nIndex = -1;
- fMerkleVerified = false;
- fGetCreditCached = false;
- nGetCreditCached = 0;
- }
-
- IMPLEMENT_SERIALIZE
- (
- nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);
- nVersion = this->nVersion;
- READWRITE(hashBlock);
- READWRITE(vMerkleBranch);
- READWRITE(nIndex);
- )
-
- int64 GetCredit(bool fUseCache=false) 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 && fGetCreditCached)
- return nGetCreditCached;
- nGetCreditCached = CTransaction::GetCredit();
- fGetCreditCached = true;
- return nGetCreditCached;
- }
-
-
- 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 AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true);
- bool AcceptTransaction() { CTxDB txdb("r"); return AcceptTransaction(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;
- char fSpent;
- //// probably need to sign the order info so know it came from payer
-
- // memory only UI hints
- mutable unsigned int nTimeDisplayed;
- mutable int nLinesDisplayed;
-
-
- CWalletTx()
- {
- Init();
- }
-
- CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)
- {
- Init();
- }
-
- CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)
- {
- Init();
- }
-
- void Init()
- {
- fTimeReceivedIsTxTime = false;
- nTimeReceived = 0;
- fFromMe = false;
- fSpent = false;
- nTimeDisplayed = 0;
- nLinesDisplayed = 0;
- }
-
- IMPLEMENT_SERIALIZE
- (
- nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion, ser_action);
- nVersion = this->nVersion;
- READWRITE(vtxPrev);
- READWRITE(mapValue);
- READWRITE(vOrderForm);
- READWRITE(fTimeReceivedIsTxTime);
- READWRITE(nTimeReceived);
- READWRITE(fFromMe);
- READWRITE(fSpent);
- )
-
- 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)
- {
- if (a.pos != b.pos || a.vSpent.size() != b.vSpent.size())
- return false;
- for (int i = 0; i < a.vSpent.size(); i++)
- if (a.vSpent[i] != b.vSpent[i])
- return false;
- return true;
- }
-
- friend bool operator!=(const CTxIndex& a, const CTxIndex& b)
- {
- return !(a == b);
- }
-};
-
-
-
-
-
-//
-// 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));
- }
-
-
- 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(bool fWriteTransactions, unsigned int& nFileRet, unsigned int& nBlockPosRet)
- {
- // Open history file to append
- CAutoFile fileout = AppendBlockFile(nFileRet);
- if (!fileout)
- return error("CBlock::WriteToDisk() : AppendBlockFile failed");
- if (!fWriteTransactions)
- fileout.nType |= SER_BLOCKHEADERONLY;
-
- // 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);
-#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 (CBigNum().SetCompact(nBits) > bnProofOfWorkLimit)
- return error("CBlock::ReadFromDisk() : nBits errors in block header");
- if (GetHash() > CBigNum().SetCompact(nBits).getuint256())
- return error("CBlock::ReadFromDisk() : GetHash() 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(0,16).c_str(),
- nVersion,
- hashPrevBlock.ToString().substr(0,16).c_str(),
- hashMerkleRoot.ToString().substr(0,6).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(0,6).c_str());
- printf("\n");
- }
-
-
- int64 GetBlockValue(int64 nFees) const;
- bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
- bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
- bool ReadFromDisk(const CBlockIndex* blockindex, bool fReadTransactions=true);
- 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;
-
- // 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;
-
- 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;
-
- nVersion = block.nVersion;
- hashMerkleRoot = block.hashMerkleRoot;
- nTime = block.nTime;
- nBits = block.nBits;
- nNonce = block.nNonce;
- }
-
- uint256 GetBlockHash() const
- {
- return *phashBlock;
- }
-
- bool IsInMainChain() const
- {
- return (pnext || this == pindexBest);
- }
-
- 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
- {
- unsigned int pmedian[nMedianTimeSpan];
- unsigned int* pbegin = &pmedian[nMedianTimeSpan];
- unsigned int* pend = &pmedian[nMedianTimeSpan];
-
- const CBlockIndex* pindex = this;
- for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)
- *(--pbegin) = pindex->nTime;
-
- 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 nTime;
- 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(0,6).c_str(),
- GetBlockHash().ToString().substr(0,16).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(0,16).c_str(),
- hashNext.ToString().substr(0,16).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 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 nTimeExpiresIn=0)
- {
- nTimeCreated = (nTimeExpiresIn ? GetTime() : 0);
- nTimeExpires = nTimeExpiresIn;
- }
-
- IMPLEMENT_SERIALIZE
- (
- if (!(nType & SER_GETHASH))
- READWRITE(nVersion);
- READWRITE(vchPrivKey);
- READWRITE(nTimeCreated);
- READWRITE(nTimeExpires);
- READWRITE(strComment);
- )
-};
-
-
-
-
-
-
-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;
+// 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_SIZE = 0x02000000;
+static const int64 COIN = 100000000;
+static const int64 CENT = 1000000;
+static const int COINBASE_MATURITY = 100;
+
+static const CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
+
+
+
+
+
+
+extern CCriticalSection cs_main;
+extern map<uint256, CBlockIndex*> mapBlockIndex;
+extern const uint256 hashGenesisBlock;
+extern CBlockIndex* pindexGenesisBlock;
+extern int nBestHeight;
+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;
+
+// Settings
+extern int fGenerateBitcoins;
+extern int64 nTransactionFee;
+extern CAddress addrIncoming;
+extern int fLimitProcessors;
+extern int nLimitProcessors;
+extern int fMinimizeToTray;
+extern int fMinimizeOnClose;
+
+
+
+
+
+
+
+bool CheckDiskSpace(int64 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);
+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(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CKey& keyRet, int64& nFeeRequiredRet);
+bool CommitTransaction(CWalletTx& wtxNew, const CKey& key);
+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);
+void BitcoinMiner();
+
+
+
+
+
+
+
+
+
+
+
+
+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(0,6).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.begin(), scriptSig.end(), false).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;
+
+public:
+ 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 (IsMine())
+ return nValue;
+ return 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(0,24).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(int64 nBlockTime=0) const
+ {
+ // Time based nLockTime implemented in 0.1.6,
+ // do not use time based until most 0.1.5 nodes have upgraded.
+ if (nLockTime == 0)
+ return true;
+ if (nBlockTime == 0)
+ nBlockTime = GetAdjustedTime();
+ if (nLockTime < (nLockTime < 500000000 ? nBestHeight : 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());
+ }
+
+ bool CheckTransaction() const
+ {
+ // Basic checks that don't depend on any context
+ if (vin.empty() || vout.empty())
+ return error("CTransaction::CheckTransaction() : vin or vout empty");
+
+ // Check for negative values
+ foreach(const CTxOut& txout, vout)
+ if (txout.nValue < 0)
+ return error("CTransaction::CheckTransaction() : txout.nValue negative");
+
+ if (IsCoinBase())
+ {
+ if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
+ return error("CTransaction::CheckTransaction() : coinbase script size");
+ }
+ else
+ {
+ foreach(const CTxIn& txin, vin)
+ if (txin.prevout.IsNull())
+ return error("CTransaction::CheckTransaction() : prevout is null");
+ }
+
+ return true;
+ }
+
+ bool IsMine() const
+ {
+ foreach(const CTxOut& txout, vout)
+ if (txout.IsMine())
+ return true;
+ return false;
+ }
+
+ int64 GetDebit() const
+ {
+ int64 nDebit = 0;
+ foreach(const CTxIn& txin, vin)
+ nDebit += txin.GetDebit();
+ return nDebit;
+ }
+
+ int64 GetCredit() const
+ {
+ int64 nCredit = 0;
+ foreach(const CTxOut& txout, vout)
+ nCredit += txout.GetCredit();
+ return nCredit;
+ }
+
+ int64 GetValueOut() const
+ {
+ int64 nValueOut = 0;
+ foreach(const CTxOut& txout, vout)
+ {
+ if (txout.nValue < 0)
+ throw runtime_error("CTransaction::GetValueOut() : negative value");
+ nValueOut += txout.nValue;
+ }
+ return nValueOut;
+ }
+
+ int64 GetMinFee(unsigned int nBlockSize=1) const
+ {
+ // Base fee is 1 cent per kilobyte
+ unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
+ int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;
+
+ // Transactions under 60K are free as long as block size is under 80K
+ // (about 27,000bc if made of 50bc inputs)
+ if (nBytes < 60000 && nBlockSize < 80000)
+ nMinFee = 0;
+
+ // Transactions under 3K are free as long as block size is under 200K
+ if (nBytes < 3000 && nBlockSize < 200000)
+ 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;
+
+ 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(0,6).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 DisconnectInputs(CTxDB& txdb);
+ bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx, int nHeight, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);
+ bool ClientConnectInputs();
+
+ bool AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
+
+ bool AcceptTransaction(bool fCheckInputs=true, bool* pfMissingInputs=NULL)
+ {
+ CTxDB txdb("r");
+ return AcceptTransaction(txdb, fCheckInputs, pfMissingInputs);
+ }
+
+protected:
+ bool AddToMemoryPool();
+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 bool fMerkleVerified;
+ mutable bool fGetCreditCached;
+ mutable int64 nGetCreditCached;
+
+
+ CMerkleTx()
+ {
+ Init();
+ }
+
+ CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
+ {
+ Init();
+ }
+
+ void Init()
+ {
+ hashBlock = 0;
+ nIndex = -1;
+ fMerkleVerified = false;
+ fGetCreditCached = false;
+ nGetCreditCached = 0;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);
+ nVersion = this->nVersion;
+ READWRITE(hashBlock);
+ READWRITE(vMerkleBranch);
+ READWRITE(nIndex);
+ )
+
+ int64 GetCredit(bool fUseCache=false) 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 && fGetCreditCached)
+ return nGetCreditCached;
+ nGetCreditCached = CTransaction::GetCredit();
+ fGetCreditCached = true;
+ return nGetCreditCached;
+ }
+
+
+ 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 AcceptTransaction(CTxDB& txdb, bool fCheckInputs=true);
+ bool AcceptTransaction() { CTxDB txdb("r"); return AcceptTransaction(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;
+ char fSpent;
+ //// probably need to sign the order info so know it came from payer
+
+ // memory only UI hints
+ mutable unsigned int nTimeDisplayed;
+ mutable int nLinesDisplayed;
+
+
+ CWalletTx()
+ {
+ Init();
+ }
+
+ CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)
+ {
+ Init();
+ }
+
+ CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)
+ {
+ Init();
+ }
+
+ void Init()
+ {
+ fTimeReceivedIsTxTime = false;
+ nTimeReceived = 0;
+ fFromMe = false;
+ fSpent = false;
+ nTimeDisplayed = 0;
+ nLinesDisplayed = 0;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion, ser_action);
+ nVersion = this->nVersion;
+ READWRITE(vtxPrev);
+ READWRITE(mapValue);
+ READWRITE(vOrderForm);
+ READWRITE(fTimeReceivedIsTxTime);
+ READWRITE(nTimeReceived);
+ READWRITE(fFromMe);
+ READWRITE(fSpent);
+ )
+
+ 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)
+ {
+ if (a.pos != b.pos || a.vSpent.size() != b.vSpent.size())
+ return false;
+ for (int i = 0; i < a.vSpent.size(); i++)
+ if (a.vSpent[i] != b.vSpent[i])
+ return false;
+ return true;
+ }
+
+ friend bool operator!=(const CTxIndex& a, const CTxIndex& b)
+ {
+ return !(a == b);
+ }
+};
+
+
+
+
+
+//
+// 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));
+ }
+
+
+ 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(bool fWriteTransactions, unsigned int& nFileRet, unsigned int& nBlockPosRet)
+ {
+ // Open history file to append
+ CAutoFile fileout = AppendBlockFile(nFileRet);
+ if (!fileout)
+ return error("CBlock::WriteToDisk() : AppendBlockFile failed");
+ if (!fWriteTransactions)
+ fileout.nType |= SER_BLOCKHEADERONLY;
+
+ // 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);
+#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 (CBigNum().SetCompact(nBits) > bnProofOfWorkLimit)
+ return error("CBlock::ReadFromDisk() : nBits errors in block header");
+ if (GetHash() > CBigNum().SetCompact(nBits).getuint256())
+ return error("CBlock::ReadFromDisk() : GetHash() 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(0,16).c_str(),
+ nVersion,
+ hashPrevBlock.ToString().substr(0,16).c_str(),
+ hashMerkleRoot.ToString().substr(0,6).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(0,6).c_str());
+ printf("\n");
+ }
+
+
+ int64 GetBlockValue(int64 nFees) const;
+ bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ bool ReadFromDisk(const CBlockIndex* blockindex, bool fReadTransactions=true);
+ 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;
+
+ // 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;
+
+ 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;
+
+ nVersion = block.nVersion;
+ hashMerkleRoot = block.hashMerkleRoot;
+ nTime = block.nTime;
+ nBits = block.nBits;
+ nNonce = block.nNonce;
+ }
+
+ uint256 GetBlockHash() const
+ {
+ return *phashBlock;
+ }
+
+ bool IsInMainChain() const
+ {
+ return (pnext || this == pindexBest);
+ }
+
+ 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
+ {
+ unsigned int pmedian[nMedianTimeSpan];
+ unsigned int* pbegin = &pmedian[nMedianTimeSpan];
+ unsigned int* pend = &pmedian[nMedianTimeSpan];
+
+ const CBlockIndex* pindex = this;
+ for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)
+ *(--pbegin) = pindex->nTime;
+
+ 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 nTime;
+ 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(0,6).c_str(),
+ GetBlockHash().ToString().substr(0,16).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(0,16).c_str(),
+ hashNext.ToString().substr(0,16).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 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 nTimeExpiresIn=0)
+ {
+ nTimeCreated = (nTimeExpiresIn ? GetTime() : 0);
+ nTimeExpires = nTimeExpiresIn;
+ }
+
+ IMPLEMENT_SERIALIZE
+ (
+ if (!(nType & SER_GETHASH))
+ READWRITE(nVersion);
+ READWRITE(vchPrivKey);
+ READWRITE(nTimeCreated);
+ READWRITE(nTimeExpires);
+ READWRITE(strComment);
+ )
+};
+
+
+
+
+
+
+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;
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-06 09:06:44 +0000