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Fix remote fee logic. Remove magic constants.

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This commit is contained in:
JoelKatz
2012-12-04 14:39:26 -08:00
parent 26e9b5e2f6
commit fce949609c
2 changed files with 25 additions and 30 deletions
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38
src/cpp/ripple/LoadManager.cpp
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@@ -106,49 +106,39 @@ bool LoadManager::adjust(LoadSource& source, int credits) const
return false;
}
uint64 LoadTrack::scaleFee(uint64 fee)
uint64 LoadFeeTrack::scaleFee(uint64 fee)
{
static uint64 midrange(0x00000000FFFFFFFF);
int factor = (mLocalTxnLoadFee > mRemoteTxnLoadFee) ? mLocalTxnLoadFee : mRemoteTxnLoadFee;
if (fee > midrange) // large fee, divide first
return (fee >> 16) * factor;
return (fee / lftNormalFee) * factor;
else // small fee, multiply first
return (fee * factor) >> 16;
return (fee * factor) / lftNormalFee;
}
void LoadTrack::raiseRemoteFee()
void LoadFeeTrack::setRemoteFee(uint32 f)
{
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
mRemoteTxnLoadFee = f;
}
void LoadTrack::lowerRemoteFee()
{
mLocalTxnLoadFee -= (mLocalTxnLoadFee >> 4); // reduce by 1/16th
if (mLocalTxnLoadFee < 256)
mLocalTxnLoadFee = 256;
}
void LoadTrack::raiseLocalFee()
void LoadFeeTrack::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
mLocalTxnLoadFee += (mLocalTxnLoadFee / lftFeeIncFraction); // increment by 1/16th
if (mLocalTxnLoadFee > lftFeeMax)
mLocalTxnLoadFee = lftFeeMax;
}
void LoadTrack::lowerLocalFee()
void LoadFeeTrack::lowerLocalFee()
{
mLocalTxnLoadFee -= (mLocalTxnLoadFee >> 4); // reduce by 1/16th
mLocalTxnLoadFee -= (mLocalTxnLoadFee / lftFeeDecFraction ); // reduce by 1/16th
if (mLocalTxnLoadFee < 256)
mLocalTxnLoadFee = 256;
if (mLocalTxnLoadFee < lftNormalFee)
mLocalTxnLoadFee = lftNormalFee;
}
// vim:ts=4