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Merge #11273: Ignore old format estimation file 

3a3a9f9 Ignore old format estimation file (Murch)

Pull request description:

  The fee estimation data format changed from 0.14.x to 0.15.0, so we should no longer read the old data. H/T @jnewbery, @morcos

  Pending testing.

Tree-SHA512: c8e3824dbdd8f6730133d5ad20b00995e9a63ab54431158a91e2f4d2aba5763b8aa698bce1fffca2713ba3a162e23d8fcd6e3efb9847b015c2e1e8725398150b
This commit is contained in:
Wladimir J. van der Laan 2017-12-19 17:03:27 +01:00
parent 81c89e966e 3a3a9f978b
commit cdd6bbf10a
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GPG Key ID: 1E4AED62986CD25D
1 changed files with 3 additions and 26 deletions
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29
src/policy/fees.cpp
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@ -944,32 +944,9 @@ bool CBlockPolicyEstimator::Read(CAutoFile& filein)
unsigned int nFileBestSeenHeight;
filein >> nFileBestSeenHeight;
if (nVersionThatWrote < 149900) {
// Read the old fee estimates file for temporary use, but then discard. Will start collecting data from scratch.
// decay is stored before buckets in old versions, so pre-read decay and pass into TxConfirmStats constructor
double tempDecay;
filein >> tempDecay;
if (tempDecay <= 0 || tempDecay >= 1)
throw std::runtime_error("Corrupt estimates file. Decay must be between 0 and 1 (non-inclusive)");
std::vector<double> tempBuckets;
filein >> tempBuckets;
size_t tempNum = tempBuckets.size();
if (tempNum <= 1 || tempNum > 1000)
throw std::runtime_error("Corrupt estimates file. Must have between 2 and 1000 feerate buckets");
std::map<double, unsigned int> tempMap;
std::unique_ptr<TxConfirmStats> tempFeeStats(new TxConfirmStats(tempBuckets, tempMap, MED_BLOCK_PERIODS, tempDecay, 1));
tempFeeStats->Read(filein, nVersionThatWrote, tempNum);
// if nVersionThatWrote < 139900 then another TxConfirmStats (for priority) follows but can be ignored.
tempMap.clear();
for (unsigned int i = 0; i < tempBuckets.size(); i++) {
tempMap[tempBuckets[i]] = i;
}
}
else { // nVersionThatWrote >= 149900
if (nVersionRequired < 149900) {
LogPrintf("%s: incompatible old fee estimation data (non-fatal). Version: %d\n", __func__, nVersionRequired);
} else { // New format introduced in 149900
unsigned int nFileHistoricalFirst, nFileHistoricalBest;
filein >> nFileHistoricalFirst >> nFileHistoricalBest;
if (nFileHistoricalFirst > nFileHistoricalBest || nFileHistoricalBest > nFileBestSeenHeight) {