167   struct timeval tv;  in Now()
168   gettimeofday(&tv, nullptr);  in Now()
169   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;  in Now()
173   struct timeval tv;  in Now()
174   gettimeofday(&tv, nullptr);  in Now()
175   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;  in Now()
177   struct timeval tv;  in Now()
178   gettimeofday(&tv, nullptr);  in Now()
179   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;  in Now()
212   struct timeval tv;  in Now()
213   gettimeofday(&tv, nullptr);  in Now()
214   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;  in Now()