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main.h
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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_MAIN_H
#define BITCOIN_MAIN_H
#include "arith_uint256.h"
#include "util.h"
#include "net.h"
#include "neuralnet/contract/contract.h"
#include "neuralnet/cpid.h"
#include "sync.h"
#include "script.h"
#include "scrypt.h"
#include "wallet/ismine.h"
#include <map>
#include <unordered_map>
#include <set>
class CWallet;
class CBlock;
class CBlockIndex;
class CKeyItem;
class CReserveKey;
class COutPoint;
class CAddress;
class CInv;
class CNode;
class CTxMemPool;
namespace NN {
class Claim;
class SuperblockPtr;
//!
//! \brief An optional type that either contains some claim object or does not.
//!
typedef boost::optional<Claim> ClaimOption;
}
static const int LAST_POW_BLOCK = 2050;
static const int CONSENSUS_LOOKBACK = 5; //Amount of blocks to go back from best block, to avoid counting forked blocks
static const int BLOCK_GRANULARITY = 10; //Consensus block divisor
static const int TALLY_GRANULARITY = BLOCK_GRANULARITY;
static const int64_t DEFAULT_CBR = 10 * COIN;
/** The maximum allowed size for a serialized block, in bytes (network rule) */
static const unsigned int MAX_BLOCK_SIZE = 1000000;
/** Target Blocks Per day */
static const unsigned int BLOCKS_PER_DAY = 1000;
/** The maximum size for mined blocks */
static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
/** The maximum size for transactions we're willing to relay/mine **/
static const unsigned int MAX_STANDARD_TX_SIZE = MAX_BLOCK_SIZE_GEN/5;
/** The maximum allowed number of signature check operations in a block (network rule) */
static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
/** The maximum number of orphan transactions kept in memory */
static const unsigned int MAX_ORPHAN_TRANSACTIONS = MAX_BLOCK_SIZE/100;
/** The maximum number of entries in an 'inv' protocol message */
static const unsigned int MAX_INV_SZ = 50000;
/** Fees smaller than this (in satoshi) are considered zero fee (for transaction creation) */
static const int64_t MIN_TX_FEE = 10000;
/** Fees smaller than this (in satoshi) are considered zero fee (for relaying) */
static const int64_t MIN_RELAY_TX_FEE = MIN_TX_FEE;
/** No amount larger than this (in satoshi) is valid */
static const int64_t MAX_MONEY = 2000000000 * COIN;
inline bool MoneyRange(int64_t nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
/** Threshold for nLockTime: below this value it is interpreted as block number, otherwise as UNIX timestamp. */
static const unsigned int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//Genesis - MainNet - Production Genesis: as of 10-20-2014:
static const uint256 hashGenesisBlock = uint256S("0x000005a247b397eadfefa58e872bc967c2614797bdc8d4d0e6b09fea5c191599");
//TestNet Genesis:
static const uint256 hashGenesisBlockTestNet = uint256S("0x00006e037d7b84104208ecf2a8638d23149d712ea810da604ee2f2cb39bae713");
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
inline bool IsProtocolV2(int nHeight)
{
return (fTestNet ? nHeight > 2060 : nHeight > 85400);
}
inline int32_t GetResearchAgeThreshold()
{
return fTestNet ? 36501 : 364501;
}
inline bool IsResearchAgeEnabled(int nHeight)
{
return nHeight >= GetResearchAgeThreshold();
}
// TODO: Move this and the other height thresholds to their own files.
// Do not put the code in the headers!
inline uint32_t IsV8Enabled(int nHeight)
{
// Start creating V8 blocks after these heights.
// In testnet the first V8 block was created on block height 320000.
return fTestNet
? nHeight > 311999
: nHeight > 1010000;
}
inline uint32_t IsV9Enabled(int nHeight)
{
return fTestNet
? nHeight >= 399000
: nHeight >= 1144000;
}
inline bool IsV10Enabled(int nHeight)
{
// Testnet used a controlled switch by injecting a v10 block
// using a modified client and different miner trigger rules,
// hence the odd height.
return fTestNet
? nHeight >= 629409
: nHeight >= 1420000;
}
inline int32_t GetV11Threshold()
{
// Returns "never" before planned intro of bv11.
try {
return fTestNet
// Temporary: configure testnet v11 height via parameter before
// releasing v11 to regular testnet:
//
? std::stoi(GetArg("-v11height", ""))
: std::numeric_limits<int32_t>::max();
} catch (...) {
return std::numeric_limits<int32_t>::max();
}
}
inline bool IsV11Enabled(int nHeight)
{
return nHeight >= GetV11Threshold();
}
inline int GetSuperblockAgeSpacing(int nHeight)
{
return (fTestNet ? 86400 : (nHeight > 364500) ? 86400 : 43200);
}
inline bool IsV9Enabled_Tally(int nHeight)
{
// 3 hours after v9
return IsV9Enabled(nHeight-120);
}
inline int64_t FutureDrift(int64_t nTime, int nHeight) { return nTime + 20 * 60; }
inline unsigned int GetTargetSpacing(int nHeight) { return IsProtocolV2(nHeight) ? 90 : 60; }
struct BlockHasher
{
size_t operator()(const uint256& hash) const { return hash.GetUint64(); }
};
typedef std::unordered_map<uint256, CBlockIndex*, BlockHasher> BlockMap;
extern CScript COINBASE_FLAGS;
extern CCriticalSection cs_main;
extern BlockMap mapBlockIndex;
extern std::set<std::pair<COutPoint, unsigned int> > setStakeSeen;
extern CBlockIndex* pindexGenesisBlock;
extern unsigned int nStakeMinAge;
extern unsigned int nStakeMaxAge;
extern unsigned int nNodeLifespan;
extern int nCoinbaseMaturity;
extern int nBestHeight;
extern arith_uint256 nBestChainTrust;
extern arith_uint256 nBestInvalidTrust;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern const std::string strMessageMagic;
extern int64_t nTimeBestReceived;
extern CCriticalSection cs_setpwalletRegistered;
extern std::set<CWallet*> setpwalletRegistered;
extern unsigned char pchMessageStart[4];
extern std::map<uint256, CBlock*> mapOrphanBlocks;
// Settings
extern int64_t nTransactionFee;
extern int64_t nReserveBalance;
extern int64_t nMinimumInputValue;
extern int64_t nLastAskedForBlocks;
extern int64_t nBootup;
extern int64_t nCPIDsLoaded;
extern int64_t nLastGRCtallied;
extern int64_t nLastCleaned;
extern bool fUseFastIndex;
extern unsigned int nDerivationMethodIndex;
extern bool fEnforceCanonical;
// Minimum disk space required - used in CheckDiskSpace()
static const uint64_t nMinDiskSpace = 52428800;
extern std::string msMiningErrors;
extern std::string msPoll;
extern std::string msMiningErrorsIncluded;
extern std::string msMiningErrorsExcluded;
extern bool mbBlocksDownloaded;
extern int nGrandfather;
extern int nNewIndex;
extern int nNewIndex2;
struct globalStatusType
{
CCriticalSection lock;
std::string blocks;
std::string difficulty;
std::string netWeight;
std::string coinWeight;
std::string poll;
std::string errors;
};
extern globalStatusType GlobalStatusStruct;
class CReserveKey;
class CTxDB;
class CTxIndex;
void RegisterWallet(CWallet* pwalletIn);
void UnregisterWallet(CWallet* pwalletIn);
void SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL, bool fUpdate = false, bool fConnect = true);
bool ProcessBlock(CNode* pfrom, CBlock* pblock, bool Generated_By_Me);
bool CheckDiskSpace(uint64_t nAdditionalBytes=0);
FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
FILE* AppendBlockFile(unsigned int& nFileRet);
bool LoadBlockIndex(bool fAllowNew=true);
void PrintBlockTree();
bool ProcessMessages(CNode* pfrom);
bool SendMessages(CNode* pto, bool fSendTrickle);
bool LoadExternalBlockFile(FILE* fileIn);
std::string ExtractXML(const std::string& XMLdata, const std::string& key, const std::string& key_end);
std::string GetCurrentOverviewTabPoll();
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast);
int64_t GetConstantBlockReward(const CBlockIndex* index);
int64_t GetProofOfStakeReward(
uint64_t nCoinAge,
int64_t nTime,
const CBlockIndex* const pindexLast);
bool OutOfSyncByAge();
double GetEstimatedNetworkWeight(unsigned int nPoSInterval = 40);
double GetDifficulty(const CBlockIndex* blockindex = NULL);
double GetBlockDifficulty(unsigned int nBits);
double GetAverageDifficulty(unsigned int nPoSInterval = 40);
// Note that dDiff cannot be = 0 normally. This is set as default because you can't specify the output of
// GetAverageDifficulty(nPosInterval) = to dDiff here.
// The defeult confidence is 1-1/e which is the mean for the geometric distribution for small probabilities.
const double DEFAULT_ETTS_CONFIDENCE = 1.0 - 1.0 / exp(1.0);
double GetEstimatedTimetoStake(bool ignore_staking_status = false, double dDiff = 0.0, double dConfidence = DEFAULT_ETTS_CONFIDENCE);
NN::ClaimOption GetClaimByIndex(const CBlockIndex* const pblockindex);
int GetNumBlocksOfPeers();
bool IsInitialBlockDownload();
std::string GetWarnings(std::string strFor);
bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock);
uint256 WantedByOrphan(const CBlock* pblockOrphan);
const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfStake);
void StakeMiner(CWallet *pwallet);
void ResendWalletTransactions(bool fForce = false);
std::string DefaultWalletAddress();
int64_t PreviousBlockAge();
/** (try to) add transaction to memory pool **/
bool AcceptToMemoryPool(CTxMemPool& pool, CTransaction &tx,
bool* pfMissingInputs);
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
bool IsResearcher(const std::string& cpid);
bool SetBestChain(CTxDB& txdb, CBlock &blockNew, CBlockIndex* pindexNew);
/** Position on disk for a particular transaction. */
class CDiskTxPos
{
public:
unsigned int nFile;
unsigned int nBlockPos;
unsigned int nTxPos;
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(nFile);
READWRITE(nBlockPos);
READWRITE(nTxPos);
}
CDiskTxPos()
{
SetNull();
}
CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)
{
nFile = nFileIn;
nBlockPos = nBlockPosIn;
nTxPos = nTxPosIn;
}
void SetNull() { nFile = (unsigned int) -1; nBlockPos = 0; nTxPos = 0; }
bool IsNull() const { return (nFile == (unsigned int) -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);
}
std::string ToString() const
{
if (IsNull())
return "null";
else
return strprintf("(nFile=%u, nBlockPos=%u, nTxPos=%u)", nFile, nBlockPos, nTxPos);
}
void print() const
{
LogPrintf("%s", ToString());
}
};
/** An inpoint - a combination of a transaction and an index n into its vin */
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 = (unsigned int) -1; }
bool IsNull() const { return (ptx == NULL && n == (unsigned int) -1); }
};
/** An outpoint - a combination of a transaction hash and an index n into its vout */
class COutPoint
{
public:
uint256 hash;
unsigned int n;
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(hash);
READWRITE(n);
}
COutPoint() { SetNull(); }
COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
void SetNull() { hash.SetNull(); n = (unsigned int) -1; }
bool IsNull() const { return (hash.IsNull() && n == (unsigned int) -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);
}
std::string ToString() const
{
return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0,10), n);
}
void print() const
{
LogPrintf("%s", ToString());
}
};
/** 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 = std::numeric_limits<unsigned int>::max();
}
explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=std::numeric_limits<unsigned int>::max())
{
prevout = prevoutIn;
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
}
CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=std::numeric_limits<unsigned int>::max())
{
prevout = COutPoint(hashPrevTx, nOut);
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(prevout);
READWRITE(scriptSig);
READWRITE(nSequence);
}
bool IsFinal() const
{
return (nSequence == std::numeric_limits<unsigned int>::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);
}
std::string ToStringShort() const
{
return strprintf(" %s %d", prevout.hash.ToString(), prevout.n);
}
std::string ToString() const
{
std::string str;
str += "CTxIn(";
str += prevout.ToString();
if (prevout.IsNull())
str += strprintf(", coinbase %s", HexStr(scriptSig));
else
str += strprintf(", scriptSig=%s", scriptSig.ToString().substr(0,24));
if (nSequence != std::numeric_limits<unsigned int>::max())
str += strprintf(", nSequence=%u", nSequence);
str += ")";
return str;
}
void print() const
{
LogPrintf("%s", ToString());
}
};
/** 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_t nValue;
CScript scriptPubKey;
CTxOut()
{
SetNull();
}
CTxOut(int64_t nValueIn, CScript scriptPubKeyIn)
{
nValue = nValueIn;
scriptPubKey = scriptPubKeyIn;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(nValue);
READWRITE(scriptPubKey);
}
void SetNull()
{
nValue = -1;
scriptPubKey.clear();
}
bool IsNull()
{
return (nValue == -1);
}
void SetEmpty()
{
nValue = 0;
scriptPubKey.clear();
}
bool IsEmpty() const
{
return (nValue == 0 && scriptPubKey.empty());
}
uint256 GetHash() const
{
return SerializeHash(*this);
}
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);
}
std::string ToStringShort() const
{
return strprintf(" out %s %s", FormatMoney(nValue), scriptPubKey.ToString(true));
}
std::string ToString() const
{
if (IsEmpty()) return "CTxOut(empty)";
return strprintf("CTxOut(nValue=%s, scriptPubKey=%s)", FormatMoney(nValue), scriptPubKey.ToString());
}
void print() const
{
LogPrintf("%s", ToString());
}
};
enum GetMinFee_mode
{
GMF_BLOCK,
GMF_RELAY,
GMF_SEND,
};
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:
static const int CURRENT_VERSION = 2;
int nVersion;
unsigned int nTime;
std::vector<CTxIn> vin;
std::vector<CTxOut> vout;
unsigned int nLockTime;
// Denial-of-service detection:
mutable int nDoS;
bool DoS(int nDoSIn, bool fIn) const { nDoS += nDoSIn; return fIn; }
std::string hashBoinc;
std::vector<NN::Contract> vContracts;
CTransaction()
{
SetNull();
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(nVersion);
READWRITE(nTime);
READWRITE(vin);
READWRITE(vout);
READWRITE(nLockTime);
READWRITE(hashBoinc);
if (nVersion >= 2) {
READWRITE(vContracts);
if (ser_action.ForRead()) {
for (auto& contract : REF(vContracts)) {
contract.m_tx_timestamp = nTime;
}
}
}
}
void SetNull()
{
nVersion = CTransaction::CURRENT_VERSION;
nTime = GetAdjustedTime();
vin.clear();
vout.clear();
nLockTime = 0;
nDoS = 0; // Denial-of-service prevention
hashBoinc = "";
vContracts.clear();
}
bool IsNull() const
{
return (vin.empty() && vout.empty());
}
uint256 GetHash() const
{
return SerializeHash(*this);
}
bool IsNewerThan(const CTransaction& old) const
{
if (vin.size() != old.vin.size())
return false;
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 (unsigned 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() && vout.size() >= 1);
}
bool IsCoinStake() const
{
// ppcoin: the coin stake transaction is marked with the first output empty
return (vin.size() > 0 && (!vin[0].prevout.IsNull()) && vout.size() >= 2 && vout[0].IsEmpty());
}
/** 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;
//!
//! \brief Determine whether the transaction contains an input spent by the
//! master key holder.
//!
//! \param inputs Map of the previous transactions with outputs spent by
//! this transaction to search for the master key address.
//!
//! \return \c true if at least one of the inputs from one of the previous
//! transactions comes from the master key address.
//!
bool HasMasterKeyInput(const MapPrevTx& inputs) 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_t GetValueOut() const
{
int64_t nValueOut = 0;
for (auto const& txout : vout)
{
nValueOut += txout.nValue;
if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
}
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_t GetValueIn(const MapPrevTx& mapInputs) const;
int64_t GetBaseFee(enum GetMinFee_mode mode=GMF_BLOCK) const;
int64_t GetMinFee(unsigned int nBlockSize=1, enum GetMinFee_mode mode=GMF_BLOCK, unsigned int nBytes = 0) const;
bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
{
CAutoFile filein(OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
if (filein.IsNull())
return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
// Read transaction
if (fseek(filein.Get(), pos.nTxPos, SEEK_SET) != 0)
return error("CTransaction::ReadFromDisk() : fseek failed");
try {
filein >> *this;
}
catch (std::exception &e) {
return error("%s() : deserialize or I/O error", __PRETTY_FUNCTION__);
}
// Return file pointer
if (pfileRet)
{
if (fseek(filein.Get(), 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.nTime == b.nTime &&
a.vin == b.vin &&
a.vout == b.vout &&
a.nLockTime == b.nLockTime);
}
friend bool operator!=(const CTransaction& a, const CTransaction& b)
{
return !(a == b);
}
std::string ToStringShort() const
{
std::string str;
str += strprintf("%s %s", GetHash().ToString(), IsCoinBase()? "base" : (IsCoinStake()? "stake" : "user"));
return str;
}
std::string ToString() const
{
std::string str;
str += IsCoinBase()? "Coinbase" : (IsCoinStake()? "Coinstake" : "CTransaction");
str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%" PRIszu ", vout.size=%" PRIszu ", nLockTime=%d)\n",
GetHash().ToString().substr(0,10),
nTime,
nVersion,
vin.size(),
vout.size(),
nLockTime);
for (unsigned int i = 0; i < vin.size(); i++)
str += " " + vin[i].ToString() + "\n";
for (unsigned int i = 0; i < vout.size(); i++)
str += " " + vout[i].ToString() + "\n";
return str;
}
void print() const
{
LogPrintf("%s", ToString());
}
bool ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet);
bool ReadFromDisk(CTxDB& txdb, COutPoint prevout);
bool ReadFromDisk(COutPoint prevout);
bool DisconnectInputs(CTxDB& txdb);
/** 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, 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
@return Returns true if all checks succeed
*/
bool ConnectInputs(CTxDB& txdb, MapPrevTx inputs,
std::map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
const CBlockIndex* pindexBlock, bool fBlock, bool fMiner);
bool CheckTransaction() const;
//!
//! \brief Check the validity of any contracts contained in the transaction.
//!
//! \param inputs Map of the previous transactions with outputs spent by
//! this transaction to search for the master key address for validating
//! administrative contracts.
//!
//! \return \c true if all of the contracts in the transaction validate.
//!
bool CheckContracts(const MapPrevTx& inputs) const;
//!
//! \brief Get the contracts contained in the transaction.
//!
//! \return The set of contracts contained in the transaction. Version 1
//! transactions can only store one contract.
//!
const std::vector<NN::Contract>& GetContracts() const
{
if (nVersion == 1 && vContracts.empty() && NN::Contract::Detect(hashBoinc)) {
REF(vContracts).emplace_back(NN::Contract::Parse(hashBoinc, nTime));
}
return vContracts;
}
bool GetCoinAge(CTxDB& txdb, uint64_t& nCoinAge) const; // ppcoin: get transaction coin age
protected:
const CTxOut& GetOutputFor(const CTxIn& input, const MapPrevTx& inputs) const;
};
/** Check for standard transaction types
@return True if all outputs (scriptPubKeys) use only standard transaction forms
*/
bool IsStandardTx(const CTransaction& tx);
bool IsFinalTx(const CTransaction &tx, int nBlockHeight = 0, int64_t nBlockTime = 0);
/** A transaction with a merkle branch linking it to the block chain. */
class CMerkleTx : public CTransaction
{
private:
int GetDepthInMainChainINTERNAL(CBlockIndex* &pindexRet) const;
public:
uint256 hashBlock;
std::vector<uint256> vMerkleBranch;
int nIndex;
// memory only
mutable bool fMerkleVerified;
CMerkleTx()
{
Init();
}
CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
{
Init();
}
void Init()
{
hashBlock.SetNull();
nIndex = -1;
fMerkleVerified = false;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITEAS(CTransaction, *this);
READWRITE(hashBlock);
READWRITE(vMerkleBranch);
READWRITE(nIndex);
}
int SetMerkleBranch(const CBlock* pblock=NULL);
// Return depth of transaction in blockchain:
// -1 : not in blockchain, and not in memory pool (conflicted transaction)
// 0 : in memory pool, waiting to be included in a block
// >=1 : this many blocks deep in the main chain
int GetDepthInMainChain(CBlockIndex* &pindexRet) const;
int GetDepthInMainChain() const { CBlockIndex *pindexRet; return GetDepthInMainChain(pindexRet); }
bool IsInMainChain() const { CBlockIndex *pindexRet; return GetDepthInMainChainINTERNAL(pindexRet) > 0; }
int GetBlocksToMaturity() const;
bool AcceptToMemoryPool();
};
/** 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;
std::vector<CDiskTxPos> vSpent;
CTxIndex()
{
SetNull();
}