private void ScannerOnToolAlive(HcToolInfo info)
{
var lockTakenScan = false;
var lockTakenRegister = false;
try
{
// lock
Monitor.TryEnter(ScannedTools, Timeout, ref lockTakenScan);
Monitor.TryEnter(RegisteredTools, Timeout, ref lockTakenRegister);
// check lock taken
if (!lockTakenScan || !lockTakenRegister)
{
return;
}
// get tools
var register = FindToolInfo(RegisteredTools, info.Mac);
var scan = FindToolInfo(ScannedTools, info.Mac);
// check scan/register tool
if (scan == null && register == null)
{
// add scan tool
ScannedTools.Add(info);
}
else if (register != null)
{
// event
ToolAlive?.Invoke(info);
}
}
finally
{
// unlock
if (lockTakenScan)
{
Monitor.Exit(ScannedTools);
}
if (lockTakenRegister)
{
Monitor.Exit(RegisteredTools);
}
}
}
private void ClientReceived(IAsyncResult ar)
{
// end receive point
var endPoint = new IPEndPoint(IPAddress.Any, McPort);
// receive data
var recv = Client.EndReceive(ar, ref endPoint);
// begin receive
Client.BeginReceive(ClientReceived, null);
// check length
if (recv.Length < 4)
{
return;
}
// check header
var id = recv[0] << 8 | recv[1];
var cmd = (ScanCommand)(recv[2] << 8 | recv[3]);
// check scan acknowledge and id and length
if (cmd != ScanCommand.ScanAck || id != TransactionId || recv.Length - 4 != HcToolInfo.Count)
{
return;
}
// set tool information
var info = new HcToolInfo(recv.Skip(4));
// check MD/MDTC
if (info.ToolType == HcToolInfo.ToolModelType.None ||
info.ToolType == HcToolInfo.ToolModelType.MD || info.ToolType == HcToolInfo.ToolModelType.MDT)
{
return;
}
// lock searched tool list
if (!Monitor.TryEnter(SearchTools, _timeoutSpan))
{
return;
}
try
{
// find tool
var tool = SearchTools.Find(x => x.Mac == info.Mac);
// check find tool
if (tool == null)
{
// set timeout time
info.Timeout = ScanPeriod + 1000;
// debug console
Console.WriteLine($@"Attach Tool: {info.Ip}");
Console.WriteLine($@"Attach Tool: {info.Mac}");
// add tool
SearchTools.Add(info);
// attached
ToolAttach?.Invoke(info);
}
else
{
// refresh tool
tool.ResetTime();
// alive
ToolAlive?.Invoke(tool);
}
}
finally
{
// unlock
Monitor.Exit(SearchTools);
}
}