private void ReceiveCallback(IAsyncResult ar)
{
var end = new IPEndPoint(IPAddress.Any, 0);
var bytes = srecvClient.EndReceive(ar, ref end);
var callback = ar.AsyncState as Action <Protocol, bool, int>;
var self = false;
if (end.Address.Equals(me))
{
self = true;
}
int from = GetIp(end.Address);
srecvClient.BeginReceive(ReceiveCallback, callback);
if (OnLog != null)
{
OnLog(ProtocolFactory.GetProtocol(bytes), end);
return;
}
if (!self && host != 0 && host != from)
{
return;
}
var p = ProtocolFactory.GetProtocol(bytes);
if (p.host != 0 && p.host != _ip && p.host != host)
{
return;
}
callback(p, self, from);
}
private void LogReceiveCallback(IAsyncResult ar)
{
var end = new IPEndPoint(IPAddress.Any, 0);
var bytes = brecvClient.EndReceive(ar, ref end);
brecvClient.BeginReceive(LogReceiveCallback, null);
OnLog(ProtocolFactory.GetProtocol(bytes), end);
}
public void Find(int type, Action <BroadcastProtocol> callback, int findTimeout = 1000)
{
var client = brecvClient;
var wait = true;
var ia = client.BeginReceive(ar =>
{
var end = new IPEndPoint(IPAddress.Any, 0);
var bytes = client.EndReceive(ar, ref end);
if (OnLog != null)
{
client.BeginReceive(LogReceiveCallback, null);
OnLog(ProtocolFactory.GetProtocol(bytes), end);
return;
}
if (!wait)
{
return;
}
if (end.Address.Equals(me))
{
Debug.WriteLine("me");
callback(null);
return;
}
var b = ProtocolFactory.GetProtocol <BroadcastProtocol>(bytes);
if (b.type == type)
{
callback(b);
}
else
{
callback(null);
}
}, null);
if (!ia.AsyncWaitHandle.WaitOne(findTimeout))
{
wait = false;
callback(null);
}
}