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Read and Write fee estimate file directly from CBlockPolicyEstimator

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This commit is contained in:
Alex Morcos
2017-02-15 15:48:48 -05:00
parent 14e10aa842
commit 5ba81e54e0
5 changed files with 38 additions and 55 deletions
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44
src/policy/fees.cpp
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@@ -7,6 +7,7 @@
#include "policy/policy.h"
#include "amount.h"
#include "clientversion.h"
#include "primitives/transaction.h"
#include "random.h"
#include "streams.h"
@@ -173,7 +174,7 @@ double TxConfirmStats::EstimateMedianVal(int confTarget, double sufficientTxVal,
return median;
}
void TxConfirmStats::Write(CAutoFile& fileout)
void TxConfirmStats::Write(CAutoFile& fileout) const
{
fileout << decay;
fileout << buckets;
@@ -464,21 +465,40 @@ CFeeRate CBlockPolicyEstimator::estimateSmartFee(int confTarget, int *answerFoun
return CFeeRate(median);
}
void CBlockPolicyEstimator::Write(CAutoFile& fileout)
bool CBlockPolicyEstimator::Write(CAutoFile& fileout) const
{
LOCK(cs_feeEstimator);
fileout << nBestSeenHeight;
feeStats.Write(fileout);
try {
LOCK(cs_feeEstimator);
fileout << 139900; // version required to read: 0.13.99 or later
fileout << CLIENT_VERSION; // version that wrote the file
fileout << nBestSeenHeight;
feeStats.Write(fileout);
}
catch (const std::exception&) {
LogPrintf("CBlockPolicyEstimator::Write(): unable to read policy estimator data (non-fatal)\n");
return false;
}
return true;
}
void CBlockPolicyEstimator::Read(CAutoFile& filein, int nFileVersion)
bool CBlockPolicyEstimator::Read(CAutoFile& filein)
{
LOCK(cs_feeEstimator);
int nFileBestSeenHeight;
filein >> nFileBestSeenHeight;
feeStats.Read(filein);
nBestSeenHeight = nFileBestSeenHeight;
// if nVersionThatWrote < 139900 then another TxConfirmStats (for priority) follows but can be ignored.
try {
LOCK(cs_feeEstimator);
int nVersionRequired, nVersionThatWrote, nFileBestSeenHeight;
filein >> nVersionRequired >> nVersionThatWrote;
if (nVersionRequired > CLIENT_VERSION)
return error("CBlockPolicyEstimator::Read(): up-version (%d) fee estimate file", nVersionRequired);
filein >> nFileBestSeenHeight;
feeStats.Read(filein);
nBestSeenHeight = nFileBestSeenHeight;
// if nVersionThatWrote < 139900 then another TxConfirmStats (for priority) follows but can be ignored.
}
catch (const std::exception&) {
LogPrintf("CBlockPolicyEstimator::Read(): unable to read policy estimator data (non-fatal)\n");
return false;
}
return true;
}
FeeFilterRounder::FeeFilterRounder(const CFeeRate& minIncrementalFee)