jtimon
10 years ago
26 changed files with 441 additions and 419 deletions
@ -0,0 +1,142 @@ |
|||
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|||
// Copyright (c) 2009-2014 The Bitcoin developers
|
|||
// Distributed under the MIT software license, see the accompanying
|
|||
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|||
|
|||
#include "core/transaction.h" |
|||
|
|||
#include "hash.h" |
|||
#include "tinyformat.h" |
|||
#include "utilstrencodings.h" |
|||
|
|||
std::string COutPoint::ToString() const |
|||
{ |
|||
return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0,10), n); |
|||
} |
|||
|
|||
CTxIn::CTxIn(COutPoint prevoutIn, CScript scriptSigIn, uint32_t nSequenceIn) |
|||
{ |
|||
prevout = prevoutIn; |
|||
scriptSig = scriptSigIn; |
|||
nSequence = nSequenceIn; |
|||
} |
|||
|
|||
CTxIn::CTxIn(uint256 hashPrevTx, uint32_t nOut, CScript scriptSigIn, uint32_t nSequenceIn) |
|||
{ |
|||
prevout = COutPoint(hashPrevTx, nOut); |
|||
scriptSig = scriptSigIn; |
|||
nSequence = nSequenceIn; |
|||
} |
|||
|
|||
std::string CTxIn::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; |
|||
} |
|||
|
|||
CTxOut::CTxOut(const CAmount& nValueIn, CScript scriptPubKeyIn) |
|||
{ |
|||
nValue = nValueIn; |
|||
scriptPubKey = scriptPubKeyIn; |
|||
} |
|||
|
|||
uint256 CTxOut::GetHash() const |
|||
{ |
|||
return SerializeHash(*this); |
|||
} |
|||
|
|||
std::string CTxOut::ToString() const |
|||
{ |
|||
return strprintf("CTxOut(nValue=%d.%08d, scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30)); |
|||
} |
|||
|
|||
CMutableTransaction::CMutableTransaction() : nVersion(CTransaction::CURRENT_VERSION), nLockTime(0) {} |
|||
CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {} |
|||
|
|||
uint256 CMutableTransaction::GetHash() const |
|||
{ |
|||
return SerializeHash(*this); |
|||
} |
|||
|
|||
void CTransaction::UpdateHash() const |
|||
{ |
|||
*const_cast<uint256*>(&hash) = SerializeHash(*this); |
|||
} |
|||
|
|||
CTransaction::CTransaction() : hash(0), nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0) { } |
|||
|
|||
CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) { |
|||
UpdateHash(); |
|||
} |
|||
|
|||
CTransaction& CTransaction::operator=(const CTransaction &tx) { |
|||
*const_cast<int*>(&nVersion) = tx.nVersion; |
|||
*const_cast<std::vector<CTxIn>*>(&vin) = tx.vin; |
|||
*const_cast<std::vector<CTxOut>*>(&vout) = tx.vout; |
|||
*const_cast<unsigned int*>(&nLockTime) = tx.nLockTime; |
|||
*const_cast<uint256*>(&hash) = tx.hash; |
|||
return *this; |
|||
} |
|||
|
|||
CAmount CTransaction::GetValueOut() const |
|||
{ |
|||
CAmount nValueOut = 0; |
|||
for (std::vector<CTxOut>::const_iterator it(vout.begin()); it != vout.end(); ++it) |
|||
{ |
|||
nValueOut += it->nValue; |
|||
if (!MoneyRange(it->nValue) || !MoneyRange(nValueOut)) |
|||
throw std::runtime_error("CTransaction::GetValueOut() : value out of range"); |
|||
} |
|||
return nValueOut; |
|||
} |
|||
|
|||
double CTransaction::ComputePriority(double dPriorityInputs, unsigned int nTxSize) const |
|||
{ |
|||
nTxSize = CalculateModifiedSize(nTxSize); |
|||
if (nTxSize == 0) return 0.0; |
|||
|
|||
return dPriorityInputs / nTxSize; |
|||
} |
|||
|
|||
unsigned int CTransaction::CalculateModifiedSize(unsigned int nTxSize) const |
|||
{ |
|||
// In order to avoid disincentivizing cleaning up the UTXO set we don't count
|
|||
// the constant overhead for each txin and up to 110 bytes of scriptSig (which
|
|||
// is enough to cover a compressed pubkey p2sh redemption) for priority.
|
|||
// Providing any more cleanup incentive than making additional inputs free would
|
|||
// risk encouraging people to create junk outputs to redeem later.
|
|||
if (nTxSize == 0) |
|||
nTxSize = ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION); |
|||
for (std::vector<CTxIn>::const_iterator it(vin.begin()); it != vin.end(); ++it) |
|||
{ |
|||
unsigned int offset = 41U + std::min(110U, (unsigned int)it->scriptSig.size()); |
|||
if (nTxSize > offset) |
|||
nTxSize -= offset; |
|||
} |
|||
return nTxSize; |
|||
} |
|||
|
|||
std::string CTransaction::ToString() const |
|||
{ |
|||
std::string str; |
|||
str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%u, vout.size=%u, nLockTime=%u)\n", |
|||
GetHash().ToString().substr(0,10), |
|||
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; |
|||
} |
|||
@ -0,0 +1,276 @@ |
|||
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|||
// Copyright (c) 2009-2014 The Bitcoin developers
|
|||
// Distributed under the MIT software license, see the accompanying
|
|||
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|||
|
|||
#ifndef H_BITCOIN_CORE_TRANSACTION |
|||
#define H_BITCOIN_CORE_TRANSACTION |
|||
|
|||
#include "amount.h" |
|||
#include "script/script.h" |
|||
#include "serialize.h" |
|||
#include "uint256.h" |
|||
|
|||
/** An outpoint - a combination of a transaction hash and an index n into its vout */ |
|||
class COutPoint |
|||
{ |
|||
public: |
|||
uint256 hash; |
|||
uint32_t n; |
|||
|
|||
COutPoint() { SetNull(); } |
|||
COutPoint(uint256 hashIn, uint32_t nIn) { hash = hashIn; n = nIn; } |
|||
|
|||
ADD_SERIALIZE_METHODS; |
|||
|
|||
template <typename Stream, typename Operation> |
|||
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { |
|||
READWRITE(FLATDATA(*this)); |
|||
} |
|||
|
|||
void SetNull() { hash = 0; n = (uint32_t) -1; } |
|||
bool IsNull() const { return (hash == 0 && n == (uint32_t) -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; |
|||
}; |
|||
|
|||
/** 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; |
|||
uint32_t nSequence; |
|||
|
|||
CTxIn() |
|||
{ |
|||
nSequence = std::numeric_limits<unsigned int>::max(); |
|||
} |
|||
|
|||
explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), uint32_t nSequenceIn=std::numeric_limits<unsigned int>::max()); |
|||
CTxIn(uint256 hashPrevTx, uint32_t nOut, CScript scriptSigIn=CScript(), uint32_t nSequenceIn=std::numeric_limits<uint32_t>::max()); |
|||
|
|||
ADD_SERIALIZE_METHODS; |
|||
|
|||
template <typename Stream, typename Operation> |
|||
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { |
|||
READWRITE(prevout); |
|||
READWRITE(scriptSig); |
|||
READWRITE(nSequence); |
|||
} |
|||
|
|||
bool IsFinal() const |
|||
{ |
|||
return (nSequence == std::numeric_limits<uint32_t>::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 ToString() 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: |
|||
CAmount nValue; |
|||
CScript scriptPubKey; |
|||
|
|||
CTxOut() |
|||
{ |
|||
SetNull(); |
|||
} |
|||
|
|||
CTxOut(const CAmount& nValueIn, CScript scriptPubKeyIn); |
|||
|
|||
ADD_SERIALIZE_METHODS; |
|||
|
|||
template <typename Stream, typename Operation> |
|||
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { |
|||
READWRITE(nValue); |
|||
READWRITE(scriptPubKey); |
|||
} |
|||
|
|||
void SetNull() |
|||
{ |
|||
nValue = -1; |
|||
scriptPubKey.clear(); |
|||
} |
|||
|
|||
bool IsNull() const |
|||
{ |
|||
return (nValue == -1); |
|||
} |
|||
|
|||
uint256 GetHash() const; |
|||
|
|||
bool IsDust(CFeeRate minRelayTxFee) const |
|||
{ |
|||
// "Dust" is defined in terms of CTransaction::minRelayTxFee,
|
|||
// which has units satoshis-per-kilobyte.
|
|||
// If you'd pay more than 1/3 in fees
|
|||
// to spend something, then we consider it dust.
|
|||
// A typical txout is 34 bytes big, and will
|
|||
// need a CTxIn of at least 148 bytes to spend:
|
|||
// so dust is a txout less than 546 satoshis
|
|||
// with default minRelayTxFee.
|
|||
size_t nSize = GetSerializeSize(SER_DISK,0)+148u; |
|||
return (nValue < 3*minRelayTxFee.GetFee(nSize)); |
|||
} |
|||
|
|||
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 ToString() const; |
|||
}; |
|||
|
|||
struct CMutableTransaction; |
|||
|
|||
/** The basic transaction that is broadcasted on the network and contained in
|
|||
* blocks. A transaction can contain multiple inputs and outputs. |
|||
*/ |
|||
class CTransaction |
|||
{ |
|||
private: |
|||
/** Memory only. */ |
|||
const uint256 hash; |
|||
void UpdateHash() const; |
|||
|
|||
public: |
|||
static const int32_t CURRENT_VERSION=1; |
|||
|
|||
// The local variables are made const to prevent unintended modification
|
|||
// without updating the cached hash value. However, CTransaction is not
|
|||
// actually immutable; deserialization and assignment are implemented,
|
|||
// and bypass the constness. This is safe, as they update the entire
|
|||
// structure, including the hash.
|
|||
const int32_t nVersion; |
|||
const std::vector<CTxIn> vin; |
|||
const std::vector<CTxOut> vout; |
|||
const uint32_t nLockTime; |
|||
|
|||
/** Construct a CTransaction that qualifies as IsNull() */ |
|||
CTransaction(); |
|||
|
|||
/** Convert a CMutableTransaction into a CTransaction. */ |
|||
CTransaction(const CMutableTransaction &tx); |
|||
|
|||
CTransaction& operator=(const CTransaction& tx); |
|||
|
|||
ADD_SERIALIZE_METHODS; |
|||
|
|||
template <typename Stream, typename Operation> |
|||
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { |
|||
READWRITE(*const_cast<int32_t*>(&this->nVersion)); |
|||
nVersion = this->nVersion; |
|||
READWRITE(*const_cast<std::vector<CTxIn>*>(&vin)); |
|||
READWRITE(*const_cast<std::vector<CTxOut>*>(&vout)); |
|||
READWRITE(*const_cast<uint32_t*>(&nLockTime)); |
|||
if (ser_action.ForRead()) |
|||
UpdateHash(); |
|||
} |
|||
|
|||
bool IsNull() const { |
|||
return vin.empty() && vout.empty(); |
|||
} |
|||
|
|||
const uint256& GetHash() const { |
|||
return hash; |
|||
} |
|||
|
|||
// Return sum of txouts.
|
|||
CAmount GetValueOut() const; |
|||
// GetValueIn() is a method on CCoinsViewCache, because
|
|||
// inputs must be known to compute value in.
|
|||
|
|||
// Compute priority, given priority of inputs and (optionally) tx size
|
|||
double ComputePriority(double dPriorityInputs, unsigned int nTxSize=0) const; |
|||
|
|||
// Compute modified tx size for priority calculation (optionally given tx size)
|
|||
unsigned int CalculateModifiedSize(unsigned int nTxSize=0) const; |
|||
|
|||
bool IsCoinBase() const |
|||
{ |
|||
return (vin.size() == 1 && vin[0].prevout.IsNull()); |
|||
} |
|||
|
|||
friend bool operator==(const CTransaction& a, const CTransaction& b) |
|||
{ |
|||
return a.hash == b.hash; |
|||
} |
|||
|
|||
friend bool operator!=(const CTransaction& a, const CTransaction& b) |
|||
{ |
|||
return a.hash != b.hash; |
|||
} |
|||
|
|||
std::string ToString() const; |
|||
}; |
|||
|
|||
/** A mutable version of CTransaction. */ |
|||
struct CMutableTransaction |
|||
{ |
|||
int32_t nVersion; |
|||
std::vector<CTxIn> vin; |
|||
std::vector<CTxOut> vout; |
|||
uint32_t nLockTime; |
|||
|
|||
CMutableTransaction(); |
|||
CMutableTransaction(const CTransaction& tx); |
|||
|
|||
ADD_SERIALIZE_METHODS; |
|||
|
|||
template <typename Stream, typename Operation> |
|||
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { |
|||
READWRITE(this->nVersion); |
|||
nVersion = this->nVersion; |
|||
READWRITE(vin); |
|||
READWRITE(vout); |
|||
READWRITE(nLockTime); |
|||
} |
|||
|
|||
/** Compute the hash of this CMutableTransaction. This is computed on the
|
|||
* fly, as opposed to GetHash() in CTransaction, which uses a cached result. |
|||
*/ |
|||
uint256 GetHash() const; |
|||
}; |
|||
|
|||
#endif // H_BITCOIN_CORE_TRANSACTION
|
|||
Loading…
Reference in new issue