diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/policy/fees.cpp | 6 | ||||
| -rw-r--r-- | src/policy/fees.h | 5 |
2 files changed, 7 insertions, 4 deletions
diff --git a/src/policy/fees.cpp b/src/policy/fees.cpp index 6499dbd97f..9f576e738a 100644 --- a/src/policy/fees.cpp +++ b/src/policy/fees.cpp @@ -1010,8 +1010,10 @@ FeeFilterRounder::FeeFilterRounder(const CFeeRate& minIncrementalFee) CAmount FeeFilterRounder::round(CAmount currentMinFee) { std::set<double>::iterator it = feeset.lower_bound(currentMinFee); - if ((it != feeset.begin() && insecure_rand.rand32() % 3 != 0) || it == feeset.end()) { - it--; + if (it == feeset.end() || + (it != feeset.begin() && + WITH_LOCK(m_insecure_rand_mutex, return insecure_rand.rand32()) % 3 != 0)) { + --it; } return static_cast<CAmount>(*it); } diff --git a/src/policy/fees.h b/src/policy/fees.h index 6e25bb42b8..c7fa1a0b77 100644 --- a/src/policy/fees.h +++ b/src/policy/fees.h @@ -299,12 +299,13 @@ public: /** Create new FeeFilterRounder */ explicit FeeFilterRounder(const CFeeRate& minIncrementalFee); - /** Quantize a minimum fee for privacy purpose before broadcast. Not thread-safe due to use of FastRandomContext */ + /** Quantize a minimum fee for privacy purpose before broadcast. */ CAmount round(CAmount currentMinFee); private: std::set<double> feeset; - FastRandomContext insecure_rand; + Mutex m_insecure_rand_mutex; + FastRandomContext insecure_rand GUARDED_BY(m_insecure_rand_mutex); }; #endif // BITCOIN_POLICY_FEES_H |