f << std::setfill('0') << std::dec << std::left << std::setw(9) << utime << " ";
f << std::setfill(' ') << global->log_thread_prefix << std::left << std::setw(2) << tid;
f << " " << std::setw(20) << file << " " << std::setw(18) << func;
f << std::setfill('0') << std::dec << std::left << std::setw(9) << utime << " ";
f << std::setfill(' ') << global->log_thread_prefix << std::left << std::setw(2) << tid;
f << " " << std::setw(20) << file << " " << std::setw(18) << func;