/* scales the input vector to the new length and returns it */
Vector3D *V3Scale(Vector3D *v, FixedPoint newlen) {
FixedPoint len;
len = V3Length(v);
if (len != 0.0) {
v->x = mulDiv(v->x,newlen,len);
v->y = mulDiv(v->y,newlen,len);
v->z = mulDiv(v->z,newlen,len);
}
return(v);
}
bool plmin(const char *&ch)
{
if (!mulDiv(ch))
return false;
while ((*ch == '+') || (*ch == '-'))
{
ch++;
if ((*ch == '+') || (*ch == '-'))
return false;
if (!mulDiv(ch))
return false;
}
return true;
}
std::uint64_t
FeeMetrics::scaleFeeLevel(OpenView const& view) const
{
auto fee = baseLevel;
// Transactions in the open ledger so far
auto const current = view.txCount();
std::size_t target;
std::uint32_t multiplier;
{
std::lock_guard <std::mutex> sl(lock_);
// Target number of transactions allowed
target = txnsExpected_;
multiplier = escalationMultiplier_;
}
// Once the open ledger bypasses the target,
// escalate the fee quickly.
if (current > target)
{
// Compute escalated fee level
// Don't care about the overflow flag
fee = mulDiv(fee, current * current *
multiplier, target * target).second;
}
return fee;
}
