tx fees, policy: periodically flush fee estimates to fee_estimates.dat

This reduces chances of having old estimates in fee_estimates.dat.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/policy/fees.cpp b/src/policy/fees.cpp
index ae226f7011..7bbc9b5e89 100644
--- a/src/policy/fees.cpp
+++ b/src/policy/fees.cpp
@@ -903,10 +903,16 @@ CFeeRate CBlockPolicyEstimator::estimateSmartFee(int confTarget, FeeCalculation
 
 void CBlockPolicyEstimator::Flush() {
     FlushUnconfirmed();
+    FlushFeeEstimates();
+}
 
+void CBlockPolicyEstimator::FlushFeeEstimates()
+{
     AutoFile est_file{fsbridge::fopen(m_estimation_filepath, "wb")};
     if (est_file.IsNull() || !Write(est_file)) {
         LogPrintf("Failed to write fee estimates to %s. Continue anyway.\n", fs::PathToString(m_estimation_filepath));
+    } else {
+        LogPrintf("Flushed fee estimates to %s.\n", fs::PathToString(m_estimation_filepath.filename()));
     }
 }