private void fillCollection(byte[] ip1, byte[] ip2)
{
for (UInt32 n = BitConverter.ToUInt32(ip1.Reverse().ToArray(), 0) + 1; n <= BitConverter.ToUInt32(ip2.Reverse().ToArray(), 0) - 1; n++)
{
string ipstr = new System.Net.IPAddress(BitConverter.GetBytes(n).Reverse().ToArray()).ToString();
DeviceInfo d = new DeviceInfo(ipstr);
_dicDeviceInfo.Add(ipstr, d);
}
}
public List<DeviceInfo> GetDevices()
{
try
{
//for offline device, you could run arp -d to clear arp table first
//0 Init all device
InitIPDevice();
//1 ping broadcast
PingBroadCast();
//2 first time get arp result
GetARPInfo(false);
//3 ping other ip not in arp table list
foreach (String k in _dicDeviceInfo.Keys)
{
DeviceInfo d = new DeviceInfo("");
d = _dicDeviceInfo[k];
if (!d.isFound)
{
_pingTasks.Add(d.PingAsync(d.IPAddr));
}
//4 record these device have pinged in arp table
if (_pingTasks.Count == 100)
{
Task.WaitAll(_pingTasks.ToArray());
GetARPInfo(true);
}
}
//5 record the last part devices
Task.WaitAll(_pingTasks.ToArray());
GetARPInfo(true);
//watch.[Stop]()
//Dim elapsedMs = watch.ElapsedMilliseconds
//MessageBox.Show(elapsedMs.ToString)
//return founded device
foreach (DeviceInfo ddd in _dicDeviceInfo.Values)
{
if (ddd.isFound)
{
_listfounddevice.Add(ddd);
}
}
return _listfounddevice;
}
catch (Exception e)
{
throw new Exception("Throw 'arp -a' Error", e);
}
}