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[cleanup] Remove coin age priority completely.

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Remove GetPriority and ComputePriority.  Remove internal machinery for tracking priority in CTxMemPoolEntry.
This commit is contained in:
Alex Morcos
2017-01-20 09:24:35 -05:00
parent f9b9371c60
commit 359e8a03d1
11 changed files with 11 additions and 97 deletions
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26
src/primitives/transaction.cpp
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@@ -89,32 +89,6 @@ CAmount CTransaction::GetValueOut() const
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 = (GetTransactionWeight(*this) + WITNESS_SCALE_FACTOR - 1) / WITNESS_SCALE_FACTOR;
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;
}
unsigned int CTransaction::GetTotalSize() const
{
return ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION);

6
src/primitives/transaction.h
View File

@@ -361,12 +361,6 @@ public:
// 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;
/**
* Get the total transaction size in bytes, including witness data.
* "Total Size" defined in BIP141 and BIP144.