// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_MAIN_H
#define BITCOIN_MAIN_H
#include "bignum.h"
#include "net.h"
-#include "key.h"
#include "script.h"
-#include "db.h"
+
+#ifdef WIN32
+#include <io.h> /* for _commit */
+#endif
#include <list>
+class CWallet;
class CBlock;
class CBlockIndex;
-class CWalletTx;
-class CWallet;
class CKeyItem;
class CReserveKey;
-class CWalletDB;
class CAddress;
class CInv;
class CRequestTracker;
class CNode;
-static const int CLIENT_VERSION = 59900;
-static const bool VERSION_IS_BETA = true;
-extern const std::string CLIENT_NAME;
-
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 unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
+static const unsigned int MAX_ORPHAN_TRANSACTIONS = MAX_BLOCK_SIZE/100;
static const int64 MIN_TX_FEE = 50000;
static const int64 MIN_RELAY_TX_FEE = 10000;
static const int64 MAX_MONEY = 21000000 * COIN;
#endif
+extern CScript COINBASE_FLAGS;
+
+
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
+extern uint64 nLastBlockTx;
+extern uint64 nLastBlockSize;
+extern const std::string strMessageMagic;
extern double dHashesPerSec;
extern int64 nHPSTimerStart;
extern int64 nTimeBestReceived;
extern std::set<CWallet*> setpwalletRegistered;
// Settings
-extern int fGenerateBitcoins;
extern int64 nTransactionFee;
-extern int fLimitProcessors;
-extern int nLimitProcessors;
-extern int fMinimizeToTray;
-extern int fMinimizeOnClose;
-extern int fUseUPnP;
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
-template<typename T>
-bool WriteSetting(const std::string& strKey, const T& value)
-{
- bool fOk = false;
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- {
- std::string strWalletFile;
- if (!GetWalletFile(pwallet, strWalletFile))
- continue;
- fOk |= CWalletDB(strWalletFile).WriteSetting(strKey, value);
- }
- return fOk;
-}
-
-
+/** Position on disk for a particular transaction. */
class CDiskTxPos
{
public:
std::string ToString() const
{
if (IsNull())
- return strprintf("null");
+ return "null";
else
return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
}
-
+/** An inpoint - a combination of a transaction and an index n into its vin */
class CInPoint
{
public:
-
+/** An outpoint - a combination of a transaction hash and an index n into its vout */
class COutPoint
{
public:
-//
-// 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.
-//
+/** 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:
std::string ToString() const
{
std::string str;
- str += strprintf("CTxIn(");
+ str += "CTxIn(";
str += prevout.ToString();
if (prevout.IsNull())
str += strprintf(", coinbase %s", HexStr(scriptSig).c_str());
-//
-// An output of a transaction. It contains the public key that the next input
-// must be able to sign with to claim it.
-//
+/** 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:
GMF_SEND,
};
-//
-// The basic transaction that is broadcasted on the network and contained in
-// blocks. A transaction can contain multiple inputs and outputs.
-//
+typedef std::map<uint256, std::pair<CTxIndex, CTransaction> > MapPrevTx;
+
+/** The basic transaction that is broadcasted on the network and contained in
+ * blocks. A transaction can contain multiple inputs and outputs.
+ */
class CTransaction
{
public:
nBlockHeight = nBestHeight;
if (nBlockTime == 0)
nBlockTime = GetAdjustedTime();
- if ((int64)nLockTime < (nLockTime < LOCKTIME_THRESHOLD ? (int64)nBlockHeight : nBlockTime))
+ if ((int64)nLockTime < ((int64)nLockTime < LOCKTIME_THRESHOLD ? (int64)nBlockHeight : nBlockTime))
return true;
BOOST_FOREACH(const CTxIn& txin, vin)
if (!txin.IsFinal())
{
if (vin.size() != old.vin.size())
return false;
- for (int i = 0; i < vin.size(); i++)
+ for (unsigned int i = 0; i < vin.size(); i++)
if (vin[i].prevout != old.vin[i].prevout)
return false;
bool fNewer = false;
unsigned int nLowest = std::numeric_limits<unsigned int>::max();
- for (int i = 0; i < vin.size(); i++)
+ for (unsigned int i = 0; i < vin.size(); i++)
{
if (vin[i].nSequence != old.vin[i].nSequence)
{
return (vin.size() == 1 && vin[0].prevout.IsNull());
}
+ /** Check for standard transaction types
+ @return True if all outputs (scriptPubKeys) use only standard transaction forms
+ */
bool IsStandard() const;
- bool AreInputsStandard(std::map<uint256, std::pair<CTxIndex, CTransaction> > mapInputs) const;
+ /** Check for standard transaction types
+ @param[in] mapInputs Map of previous transactions that have outputs we're spending
+ @return True if all inputs (scriptSigs) use only standard transaction forms
+ @see CTransaction::FetchInputs
+ */
+ bool AreInputsStandard(const MapPrevTx& mapInputs) const;
+
+ /** Count ECDSA signature operations the old-fashioned (pre-0.6) way
+ @return number of sigops this transaction's outputs will produce when spent
+ @see CTransaction::FetchInputs
+ */
+ unsigned int GetLegacySigOpCount() const;
+
+ /** Count ECDSA signature operations in pay-to-script-hash inputs.
+
+ @param[in] mapInputs Map of previous transactions that have outputs we're spending
+ @return maximum number of sigops required to validate this transaction's inputs
+ @see CTransaction::FetchInputs
+ */
+ unsigned int GetP2SHSigOpCount(const MapPrevTx& mapInputs) const;
+
+ /** Amount of bitcoins spent by this transaction.
+ @return sum of all outputs (note: does not include fees)
+ */
int64 GetValueOut() const
{
int64 nValueOut = 0;
return nValueOut;
}
+ /** Amount of bitcoins coming in to this transaction
+ Note that lightweight clients may not know anything besides the hash of previous transactions,
+ so may not be able to calculate this.
+
+ @param[in] mapInputs Map of previous transactions that have outputs we're spending
+ @return Sum of value of all inputs (scriptSigs)
+ @see CTransaction::FetchInputs
+ */
+ int64 GetValueIn(const MapPrevTx& mapInputs) const;
+
static bool AllowFree(double dPriority)
{
// Large (in bytes) low-priority (new, small-coin) transactions
// Base fee is either MIN_TX_FEE or MIN_RELAY_TX_FEE
int64 nBaseFee = (mode == GMF_RELAY) ? MIN_RELAY_TX_FEE : MIN_TX_FEE;
- unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
+ unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION);
unsigned int nNewBlockSize = nBlockSize + nBytes;
int64 nMinFee = (1 + (int64)nBytes / 1000) * nBaseFee;
// To limit dust spam, require MIN_TX_FEE/MIN_RELAY_TX_FEE if any output is less than 0.01
if (nMinFee < nBaseFee)
+ {
BOOST_FOREACH(const CTxOut& txout, vout)
if (txout.nValue < CENT)
nMinFee = nBaseFee;
+ }
// Raise the price as the block approaches full
if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
{
- CAutoFile filein = OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb");
+ CAutoFile filein = CAutoFile(OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
vin.size(),
vout.size(),
nLockTime);
- for (int i = 0; i < vin.size(); i++)
+ for (unsigned int i = 0; i < vin.size(); i++)
str += " " + vin[i].ToString() + "\n";
- for (int i = 0; i < vout.size(); i++)
+ for (unsigned int i = 0; i < vout.size(); i++)
str += " " + vout[i].ToString() + "\n";
return str;
}
bool ReadFromDisk(COutPoint prevout);
bool DisconnectInputs(CTxDB& txdb);
- // Fetch from memory and/or disk. inputsRet keys are transaction hashes.
+ /** Fetch from memory and/or disk. inputsRet keys are transaction hashes.
+
+ @param[in] txdb Transaction database
+ @param[in] mapTestPool List of pending changes to the transaction index database
+ @param[in] fBlock True if being called to add a new best-block to the chain
+ @param[in] fMiner True if being called by CreateNewBlock
+ @param[out] inputsRet Pointers to this transaction's inputs
+ @param[out] fInvalid returns true if transaction is invalid
+ @return Returns true if all inputs are in txdb or mapTestPool
+ */
bool FetchInputs(CTxDB& txdb, const std::map<uint256, CTxIndex>& mapTestPool,
- bool fBlock, bool fMiner, std::map<uint256, std::pair<CTxIndex, CTransaction> >& inputsRet);
- bool ConnectInputs(std::map<uint256, std::pair<CTxIndex, CTransaction> > inputs,
- std::map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
- CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int& nSigOpsRet, int64 nMinFee=0);
+ bool fBlock, bool fMiner, MapPrevTx& inputsRet, bool& fInvalid);
+
+ /** Sanity check previous transactions, then, if all checks succeed,
+ mark them as spent by this transaction.
+
+ @param[in] inputs Previous transactions (from FetchInputs)
+ @param[out] mapTestPool Keeps track of inputs that need to be updated on disk
+ @param[in] posThisTx Position of this transaction on disk
+ @param[in] pindexBlock
+ @param[in] fBlock true if called from ConnectBlock
+ @param[in] fMiner true if called from CreateNewBlock
+ @param[in] fStrictPayToScriptHash true if fully validating p2sh transactions
+ @return Returns true if all checks succeed
+ */
+ bool ConnectInputs(MapPrevTx inputs,
+ std::map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
+ const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash=true);
bool ClientConnectInputs();
bool CheckTransaction() const;
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
- bool AcceptToMemoryPool(bool fCheckInputs=true, bool* pfMissingInputs=NULL);
+
protected:
- bool AddToMemoryPoolUnchecked();
-public:
- bool RemoveFromMemoryPool();
+ const CTxOut& GetOutputFor(const CTxIn& input, const MapPrevTx& inputs) const;
};
-//
-// A transaction with a merkle branch linking it to the block chain
-//
+/** A transaction with a merkle branch linking it to the block chain. */
class CMerkleTx : public CTransaction
{
public:
int nIndex;
// memory only
- mutable char fMerkleVerified;
+ mutable bool fMerkleVerified;
CMerkleTx()
-//
-// 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.
-//
+/** 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:
-//
-// 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.
-//
+/** 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:
return (int64)nTime;
}
+ void UpdateTime(const CBlockIndex* pindexPrev);
uint256 BuildMerkleTree() const
bool WriteToDisk(unsigned int& nFileRet, unsigned int& nBlockPosRet)
{
// Open history file to append
- CAutoFile fileout = AppendBlockFile(nFileRet);
+ CAutoFile fileout = CAutoFile(AppendBlockFile(nFileRet), SER_DISK, CLIENT_VERSION);
if (!fileout)
return error("CBlock::WriteToDisk() : AppendBlockFile failed");
fileout << FLATDATA(pchMessageStart) << nSize;
// Write block
- nBlockPosRet = ftell(fileout);
- if (nBlockPosRet == -1)
+ long fileOutPos = ftell(fileout);
+ if (fileOutPos < 0)
return error("CBlock::WriteToDisk() : ftell failed");
+ nBlockPosRet = fileOutPos;
fileout << *this;
// Flush stdio buffers and commit to disk before returning
SetNull();
// Open history file to read
- CAutoFile filein = OpenBlockFile(nFile, nBlockPos, "rb");
+ CAutoFile filein = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CBlock::ReadFromDisk() : OpenBlockFile failed");
if (!fReadTransactions)
hashMerkleRoot.ToString().substr(0,10).c_str(),
nTime, nBits, nNonce,
vtx.size());
- for (int i = 0; i < vtx.size(); i++)
+ for (unsigned int i = 0; i < vtx.size(); i++)
{
printf(" ");
vtx[i].print();
}
printf(" vMerkleTree: ");
- for (int i = 0; i < vMerkleTree.size(); i++)
+ for (unsigned int i = 0; i < vMerkleTree.size(); i++)
printf("%s ", vMerkleTree[i].ToString().substr(0,10).c_str());
printf("\n");
}
bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);
bool CheckBlock() const;
bool AcceptBlock();
+
+private:
+ bool SetBestChainInner(CTxDB& txdb, CBlockIndex *pindexNew);
};
-//
-// 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.
-//
+/** 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:
bool EraseBlockFromDisk()
{
// Open history file
- CAutoFile fileout = OpenBlockFile(nFile, nBlockPos, "rb+");
+ CAutoFile fileout = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb+"), SER_DISK, CLIENT_VERSION);
if (!fileout)
return false;
-//
-// Used to marshal pointers into hashes for db storage.
-//
+/** Used to marshal pointers into hashes for db storage. */
class CDiskBlockIndex : public CBlockIndex
{
public:
-//
-// 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.
-//
+/** 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:
-//
-// 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.
-//
+/** 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:
}
};
+/** An alert is a combination of a serialized CUnsignedAlert and a signature. */
class CAlert : public CUnsignedAlert
{
public:
return error("CAlert::CheckSignature() : verify signature failed");
// Now unserialize the data
- CDataStream sMsg(vchMsg);
+ CDataStream sMsg(vchMsg, SER_NETWORK, PROTOCOL_VERSION);
sMsg >> *(CUnsignedAlert*)this;
return true;
}
bool ProcessAlert();
};
+class CTxMemPool
+{
+public:
+ mutable CCriticalSection cs;
+ std::map<uint256, CTransaction> mapTx;
+ std::map<COutPoint, CInPoint> mapNextTx;
+
+ bool accept(CTxDB& txdb, CTransaction &tx,
+ bool fCheckInputs, bool* pfMissingInputs);
+ bool addUnchecked(CTransaction &tx);
+ bool remove(CTransaction &tx);
+
+ unsigned long size()
+ {
+ LOCK(cs);
+ return mapTx.size();
+ }
+
+ bool exists(uint256 hash)
+ {
+ return (mapTx.count(hash) != 0);
+ }
+
+ CTransaction& lookup(uint256 hash)
+ {
+ return mapTx[hash];
+ }
+};
+
+extern CTxMemPool mempool;
+
#endif
git://git.novaco.in / novacoin.git / blobdiff