下载速度

• (long long) getInterfaceBytes { struct ifaddrs *ifa_list = 0, *ifa; if (getifaddrs(&ifa_list) == -1) { return 0; } uint32_t iBytes = 0; uint32_t oBytes = 0; for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) { if (AF_LINK != ifa->ifa_addr->sa_family) continue;

  if (!(ifa->ifa_flags & IFF_UP) && !(ifa->ifa_flags & IFF_RUNNING))
      continue;
  
  if (ifa->ifa_data == 0)
      continue;
  
  /* Not a loopback device. */
  if (strncmp(ifa->ifa_name, "lo", 2))
  {
      struct if_data *if_data = (struct if_data *)ifa->ifa_data;
      
      iBytes += if_data->ifi_ibytes;
      oBytes += if_data->ifi_obytes;
  }

} freeifaddrs(ifa_list); NSLog(@”\n[getInterfaceBytes-Total]%d,%d”,iBytes,oBytes); return iBytes + oBytes; }

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