| public EndSendTo ( IAsyncResult asyncResult ) : int | ||
| asyncResult | IAsyncResult | |
| return | int | |
public int EndSend(IAsyncResult asyncResult)
{
MyAsyncResult receiveAsyncResult = asyncResult as MyAsyncResult;
if (receiveAsyncResult == null)
{
throw new ArgumentException("Invalid Async Result", "asyncResult");
}
return(_socket.EndSendTo(receiveAsyncResult.AsyncResult));
}
internal void SendToCallback(IAsyncResult ares)
{
try {
BytesTransferred = curSocket.EndSendTo(ares);
} catch (SocketException ex) {
SocketError = ex.SocketErrorCode;
} catch (ObjectDisposedException) {
SocketError = SocketError.OperationAborted;
} finally {
OnCompleted(this);
}
}
public int EndSend(IAsyncResult asyncResult)
{
ThrowIfDisposed();
if (_active)
{
return(_clientSocket.EndSend(asyncResult));
}
else
{
return(_clientSocket.EndSendTo(asyncResult));
}
}
public static async Task<bool> DiscoverAsync(object state = null)
{
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
IPEndPoint endpoint = new IPEndPoint(IPAddress.Broadcast, 1900);
byte[] outBuf = Encoding.ASCII.GetBytes(BroadcastPacket);
byte[] inBuf = new byte[4096];
int tries = MaxTries;
while (--tries > 0)
{
try
{
TaskFactory factory = new TaskFactory();
sock.ReceiveTimeout = DiscoverTimeout;
await factory.FromAsync(sock.BeginSendTo(outBuf, 0, outBuf.Length, 0, endpoint, null, null), end =>
{
sock.EndSendTo(end);
}).ConfigureAwait(false);
var ar = sock.BeginReceive(inBuf, 0, inBuf.Length, 0, null, null);
if (ar == null) throw new Exception("ar is null");
int length = await factory.FromAsync(ar, end => sock.EndReceive(end)).ConfigureAwait(false);
string data = Encoding.ASCII.GetString(inBuf, 0, length).ToLowerInvariant();
var match = ResponseLocation.Match(data);
if (match.Success && match.Groups["location"].Success)
{
System.Diagnostics.Debug.WriteLine("Found UPnP device at " + match.Groups["location"]);
string controlUrl = GetServiceUrl(match.Groups["location"].Value);
if (!string.IsNullOrEmpty(controlUrl))
{
_controlUrl = controlUrl;
System.Diagnostics.Debug.WriteLine("Found control URL at " + _controlUrl);
return true;
}
}
}
catch (Exception ex)
{
// ignore timeout exceptions
if (!(ex is SocketException && ((SocketException) ex).ErrorCode == 10060))
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
}
}
return false;
}
public int EndSend(IAsyncResult asyncResult)
{
if (_cleanedUp)
{
throw new ObjectDisposedException(this.GetType().FullName);
}
if (_active)
{
return(_clientSocket.EndSend(asyncResult));
}
else
{
return(_clientSocket.EndSendTo(asyncResult));
}
}
int Utils.Wrappers.Interfaces.ISocket.EndSendTo(System.IAsyncResult asyncResult)
{
return(InternalSocket.EndSendTo(asyncResult));
}
/// <summary>
/// Sends an <see cref="ISnmpMessage"/>.
/// </summary>
/// <param name="message">The <see cref="ISnmpMessage"/>.</param>
/// <param name="manager">Manager</param>
/// <param name="socket">The socket.</param>
public static void SendAsync(this ISnmpMessage message, EndPoint manager, Socket socket)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (socket == null)
{
throw new ArgumentNullException("socket");
}
if (manager == null)
{
throw new ArgumentNullException("manager");
}
var code = message.TypeCode();
if ((code != SnmpType.TrapV1Pdu && code != SnmpType.TrapV2Pdu) && code != SnmpType.ReportPdu)
{
throw new InvalidOperationException(string.Format(
CultureInfo.InvariantCulture,
"not a trap message: {0}",
code));
}
var bytes = message.ToBytes();
socket.BeginSendTo(bytes, 0, bytes.Length, SocketFlags.None, manager, ar => socket.EndSendTo(ar), null);
}
