Method oneIn

bolt/exec/tests/HashJoinBridgeTest.cpp:86–89

  }

  bool oneIn(uint32_t n) {
    std::lock_guard<std::mutex> l(mutex_);
    return folly::Random().oneIn(n, rng_);
  }

  std::shared_ptr<HashJoinBridge> createJoinBridge() const {
    return std::make_shared<HashJoinBridge>();