t4_state::t4_state(char log_prefix) : log_thread_prefix(log_prefix) {
uint32_t seed = std::random_device()();
auto time = system_clock::now().time_since_epoch();
t4_state::t4_state(char log_prefix) : log_thread_prefix(log_prefix) {
uint32_t seed = std::random_device()();
auto time = system_clock::now().time_since_epoch();