public unsafe void Execute(UdpSocketSendResult target) { target.Pin(buffer.Data); Overlapped overlapped = new Overlapped { AsyncResult = target }; NativeOverlapped *native = overlapped.UnsafePack(null, null); IntPtr reference = Marshal.UnsafeAddrOfPinnedArrayElement(buffer.Data, buffer.Offset); TcpSocketInterop.WSABuffer data = new TcpSocketInterop.WSABuffer { length = buffer.Count, buffer = reference }; byte[] address = endpoint.Address.GetAddressBytes(); byte[] addressData = { 0x02, 0x00, (byte)(endpoint.Port / 256), (byte)(endpoint.Port % 256), address[0], address[1], address[2], address[3], 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; IntPtr addressBuffer = Marshal.UnsafeAddrOfPinnedArrayElement(addressData, 0); target.Pin(addressData); int written; uint result = UdpSocketInterop.WSASendTo(handle, &data, 1, out written, 0, addressBuffer, addressData.Length, native, IntPtr.Zero); uint error = TcpSocketInterop.WSAGetLastError(); if (result != 0 && error != 997) { target.Fail(error); } }
public void Send(IPEndPoint endpoint, SocketBuffer buffer, UdpSocketSendCallback callback) { UdpSocketSendRoutine routine = new UdpSocketSendRoutine(handle, endpoint, buffer); UdpSocketSendResult result = new UdpSocketSendResult { Socket = this, Buffer = buffer, OnSent = callback, Endpoint = endpoint }; routine.Execute(result); }