void TxConfirmStats::Read(CAutoFile& filein, int nFileVersion, size_t numBuckets)
{
// Read data file and do some very basic sanity checking
// buckets and bucketMap are not updated yet, so don't access them
// If there is a read failure, we'll just discard this entire object anyway
size_t maxConfirms, maxPeriods;
// The current version will store the decay with each individual TxConfirmStats and also keep a scale factor
filein >> decay;
if (decay <= 0 || decay >= 1) {
throw std::runtime_error("Corrupt estimates file. Decay must be between 0 and 1 (non-inclusive)");
}
filein >> scale;
if (scale == 0) {
throw std::runtime_error("Corrupt estimates file. Scale must be non-zero");
}
filein >> avg;
if (avg.size() != numBuckets) {
throw std::runtime_error("Corrupt estimates file. Mismatch in feerate average bucket count");
}
filein >> txCtAvg;
if (txCtAvg.size() != numBuckets) {
throw std::runtime_error("Corrupt estimates file. Mismatch in tx count bucket count");
}
filein >> confAvg;
maxPeriods = confAvg.size();
maxConfirms = scale * maxPeriods;
if (maxConfirms <= 0 || maxConfirms > 6 * 24 * 7) { // one week
throw std::runtime_error("Corrupt estimates file. Must maintain estimates for between 1 and 1008 (one week) confirms");
}
for (unsigned int i = 0; i < maxPeriods; i++) {
if (confAvg[i].size() != numBuckets) {
throw std::runtime_error("Corrupt estimates file. Mismatch in feerate conf average bucket count");
}
}
filein >> failAvg;
if (maxPeriods != failAvg.size()) {
throw std::runtime_error("Corrupt estimates file. Mismatch in confirms tracked for failures");
}
for (unsigned int i = 0; i < maxPeriods; i++) {
if (failAvg[i].size() != numBuckets) {
throw std::runtime_error("Corrupt estimates file. Mismatch in one of failure average bucket counts");
}
}
// Resize the current block variables which aren't stored in the data file
// to match the number of confirms and buckets
resizeInMemoryCounters(numBuckets);
LogPrint(BCLog::ESTIMATEFEE, "Reading estimates: %u buckets counting confirms up to %u blocks\n",
numBuckets, maxConfirms);
}
TxConfirmStats::TxConfirmStats(const std::vector<double>& defaultBuckets,
const std::map<double, unsigned int>& defaultBucketMap,
unsigned int maxPeriods, double _decay, unsigned int _scale)
: buckets(defaultBuckets), bucketMap(defaultBucketMap)
{
decay = _decay;
scale = _scale;
confAvg.resize(maxPeriods);
for (unsigned int i = 0; i < maxPeriods; i++) {
confAvg[i].resize(buckets.size());
}
failAvg.resize(maxPeriods);
for (unsigned int i = 0; i < maxPeriods; i++) {
failAvg[i].resize(buckets.size());
}
txCtAvg.resize(buckets.size());
avg.resize(buckets.size());
resizeInMemoryCounters(buckets.size());
}
