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Change GetPriority calculation.

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Compute the value of inputs that already are in the chain at time of mempool entry and only increase priority due to aging for those inputs.  This effectively changes the CTxMemPoolEntry's GetPriority calculation from an upper bound to a lower bound.
This commit is contained in:
Alex Morcos
2015-11-13 10:05:21 -05:00
parent 71f1d9fd4a
commit c0353064dd
7 changed files with 37 additions and 16 deletions
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7
src/main.cpp
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@@ -950,9 +950,10 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
CAmount nValueOut = tx.GetValueOut();
CAmount nFees = nValueIn-nValueOut;
double dPriority = view.GetPriority(tx, chainActive.Height());
CAmount inChainInputValue;
double dPriority = view.GetPriority(tx, chainActive.Height(), inChainInputValue);
CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), pool.HasNoInputsOf(tx));
CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), pool.HasNoInputsOf(tx), inChainInputValue);
unsigned int nSize = entry.GetTxSize();
// Don't accept it if it can't get into a block
@@ -964,7 +965,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
CAmount mempoolRejectFee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize);
if (mempoolRejectFee > 0 && nFees < mempoolRejectFee) {
return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool min fee not met", false, strprintf("%d < %d", nFees, mempoolRejectFee));
} else if (GetBoolArg("-relaypriority", DEFAULT_RELAYPRIORITY) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) {
} else if (GetBoolArg("-relaypriority", DEFAULT_RELAYPRIORITY) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(entry.GetPriority(chainActive.Height() + 1))) {
// Require that free transactions have sufficient priority to be mined in the next block.
return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "insufficient priority");
}