1 files changed, 142 insertions, 0 deletions
diff --git a/src/core/transaction.cpp b/src/core/transaction.cpp
new file mode 100644
index 0000000000..f835bafb9f
--- /dev/null
+++ b/src/core/transaction.cpp
@@ -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;
+}