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Updates to local and remote transaction fee factor tracking.

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This commit is contained in:
JoelKatz
2012-12-04 13:29:51 -08:00
parent f5d8c771a5
commit 26e9b5e2f6
2 changed files with 74 additions and 0 deletions
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47
src/cpp/ripple/LoadManager.cpp
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@@ -105,3 +105,50 @@ bool LoadManager::adjust(LoadSource& source, int credits) const
return false;
}
uint64 LoadTrack::scaleFee(uint64 fee)
{
static uint64 midrange(0x00000000FFFFFFFF);
int factor = (mLocalTxnLoadFee > mRemoteTxnLoadFee) ? mLocalTxnLoadFee : mRemoteTxnLoadFee;
if (fee > midrange) // large fee, divide first
return (fee >> 16) * factor;
else // small fee, multiply first
return (fee * factor) >> 16;
}
void LoadTrack::raiseRemoteFee()
{
if (mRemoteTxnLoadFee < mLocalTxnLoadFee) // make sure this fee takes effect
mRemoteTxnLoadFee = mLocalTxnLoadFee;
if (mRemoteTxnLoadFee < 268435456) // no more than a million
mRemoteTxnLoadFee += (mRemoteTxnLoadFee >> 4); // increment by 1/16th
}
void LoadTrack::lowerRemoteFee()
{
mLocalTxnLoadFee -= (mLocalTxnLoadFee >> 4); // reduce by 1/16th
if (mLocalTxnLoadFee < 256)
mLocalTxnLoadFee = 256;
}
void LoadTrack::raiseLocalFee()
{
if (mLocalTxnLoadFee < mLocalTxnLoadFee) // make sure this fee takes effect
mLocalTxnLoadFee = mLocalTxnLoadFee;
if (mLocalTxnLoadFee < 268435456) // no more than a million
mLocalTxnLoadFee += (mLocalTxnLoadFee >> 4); // increment by 1/16th
}
void LoadTrack::lowerLocalFee()
{
mLocalTxnLoadFee -= (mLocalTxnLoadFee >> 4); // reduce by 1/16th
if (mLocalTxnLoadFee < 256)
mLocalTxnLoadFee = 256;
}
// vim:ts=4