Lower maximum size for free transaction creation

Changes the maximum size of a free transaction that will be created
from 10,000 bytes to 1,000 bytes.

The idea behind this change is to make the free transaction area
available to a greater number of people; with the default 27K-per-block,
just three very-large very-high-priority transactions could fill the space.
This commit is contained in:
Gavin Andresen
2013-09-18 12:04:29 +10:00
committed by Wladimir J. van der Laan
parent 1ca8a75cb4
commit 9612e4c0d9

View File

@@ -608,19 +608,14 @@ int64 CTransaction::GetMinFee(unsigned int nBlockSize, bool fAllowFree,
if (fAllowFree)
{
if (nBlockSize == 1)
{
// Transactions under 10K are free
// (about 4500 BTC if made of 50 BTC inputs)
if (nBytes < 10000)
nMinFee = 0;
}
else
{
// Free transaction area
if (nNewBlockSize < DEFAULT_BLOCK_PRIORITY_SIZE)
nMinFee = 0;
}
// There is a free transaction area in blocks created by most miners,
// * If we are relaying we allow transactions up to DEFAULT_BLOCK_PRIORITY_SIZE - 1000
// to be considered to fall into this category. We don't want to encourage sending
// multiple transactions instead of one big transaction to avoid fees.
// * If we are creating a transaction we allow transactions up to 1,000 bytes
// to be considered safe and assume they can likely make it into this section.
if (nBytes < (mode == GMF_SEND ? 1000 : (DEFAULT_BLOCK_PRIORITY_SIZE - 1000)))
nMinFee = 0;
}
// This code can be removed after enough miners have upgraded to version 0.9.