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public BeginReceiveMessageFrom ( byte buffer, int offset, int size, SocketFlags socketFlags, |
||
| buffer | byte | |
| offset | int | |
| size | int | |
| socketFlags | SocketFlags | |
| remoteEP | ||
| callback | AsyncCallback | |
| state | object | |
| return | IAsyncResult | |
public static Task <SocketReceiveMessageFromResult> ReceiveMessageFromAsync(
this Socket socket,
ArraySegment <byte> buffer,
SocketFlags socketFlags,
EndPoint remoteEndPoint)
{
return(Task <SocketReceiveMessageFromResult> .Factory.FromAsync(
(callback, state) => socket.BeginReceiveMessageFrom(
buffer.Array,
buffer.Offset,
buffer.Count,
socketFlags,
ref remoteEndPoint,
callback,
state),
asyncResult => {
IPPacketInformation ipPacket;
int bytesReceived = socket.EndReceiveMessageFrom(
asyncResult,
ref socketFlags,
ref remoteEndPoint,
out ipPacket);
return new SocketReceiveMessageFromResult()
{
PacketInformation = ipPacket,
ReceivedBytes = bytesReceived,
RemoteEndPoint = remoteEndPoint,
SocketFlags = socketFlags
};
},
null));
}
public static Task <SocketReceiveMessageFromResult> ReceiveMessageFromAsync(
this Socket socket,
ArraySegment <byte> buffer,
SocketFlags socketFlags,
EndPoint remoteEndPoint)
{
var tcs = new StateTaskCompletionSource <SocketFlags, EndPoint, SocketReceiveMessageFromResult>(socket)
{
_field1 = socketFlags, _field2 = remoteEndPoint
};
socket.BeginReceiveMessageFrom(buffer.Array, buffer.Offset, buffer.Count, socketFlags, ref tcs._field2, iar =>
{
var innerTcs = (StateTaskCompletionSource <SocketFlags, EndPoint, SocketReceiveMessageFromResult>)iar.AsyncState;
try
{
IPPacketInformation ipPacketInformation;
int receivedBytes = ((Socket)innerTcs.Task.AsyncState).EndReceiveMessageFrom(iar, ref innerTcs._field1, ref innerTcs._field2, out ipPacketInformation);
innerTcs.TrySetResult(new SocketReceiveMessageFromResult
{
ReceivedBytes = receivedBytes,
RemoteEndPoint = innerTcs._field2,
SocketFlags = innerTcs._field1,
PacketInformation = ipPacketInformation
});
}
catch (Exception e) { innerTcs.TrySetException(e); }
}, tcs);
return(tcs.Task);
}
public SharedSocket(int port)
{
addressEntries = new List<AddressEntry>();
this.port = port;
buffer = new byte[65535];
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, port));
socket.BeginReceiveMessageFrom(buffer, 0, buffer.Length, SocketFlags.None, ref receiveEndpoint, OnDataReceived, null);
}
System.IAsyncResult Utils.Wrappers.Interfaces.ISocket.BeginReceiveMessageFrom(byte[] buffer, int offset, int size, SocketFlags socketFlags, ref System.Net.EndPoint remoteEP, System.AsyncCallback callback, object state)
{
return(InternalSocket.BeginReceiveMessageFrom(buffer, offset, size, socketFlags, ref remoteEP, callback, state));
}
public void Arping( IPAddress ipToSearchFor )
{
string ownMAC;
string ownIP;
getLocalMacAndIP( out ownIP, out ownMAC );
char[] aDelimiter = { '.' };
string[] aIPReso = ipToSearchFor.ToString().Split( aDelimiter, 4 );
string[] aIPAddr = ownIP.Split( aDelimiter, 4 );
byte[] oPacket = new byte[] { /*0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
Convert.ToByte("0x" + ownMAC.Substring(0,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(2,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(4,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(6,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(8,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(10,2), 16),
0x08, 0x06,*/ 0x00, 0x01,
0x08, 0x00, 0x06, 0x04, 0x00, 0x01,
Convert.ToByte("0x" + ownMAC.Substring(0,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(2,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(4,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(6,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(8,2), 16),
Convert.ToByte("0x" + ownMAC.Substring(10,2), 16),
Convert.ToByte(aIPAddr[0], 10),
Convert.ToByte(aIPAddr[1], 10),
Convert.ToByte(aIPAddr[2], 10),
Convert.ToByte(aIPAddr[3], 10),
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
Convert.ToByte(aIPReso[0], 10),
Convert.ToByte(aIPReso[1], 10),
Convert.ToByte(aIPReso[2], 10),
Convert.ToByte(aIPReso[3], 10)};
Socket arpSocket;
arpSocket = new Socket( System.Net.Sockets.AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Raw );
//arpSocket.SetSocketOption( SocketOptionLevel.IP, SocketOptionName.HeaderIncluded, true );
arpSocket.EnableBroadcast = true;
EndPoint localEndPoint = new IPEndPoint( IPAddress.Any, 0 );
EndPoint remoteEndPoint = new IPEndPoint( ipToSearchFor, 0 );
arpSocket.Bind( localEndPoint );
arpSocket.BeginSendTo( oPacket,0,oPacket.Length,SocketFlags.None, remoteEndPoint, null, this);
byte[] buffer = new byte[100];
arpSocket.BeginReceiveMessageFrom( buffer, 0, 100, SocketFlags.None, ref remoteEndPoint, null, this);
}
public void StartListening()
{
lock (lockobj) {
ResetStats();
hasData = true;
if (socket == null) {
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, this.endpoint.Port));
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(this.endpoint.Address));
socket.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref receiveEndpoint, ReceiveCallback, socket);
}
}
}
