示例#1
0
		private static Boolean TryConfigureBindAndStartListen(SOCKET serverSocket, TcpServerSettings settings)
		{
			// try disable use of the Nagle algorithm if requested
			if (settings.UseNagleAlgorithm == false)
			{
				var optionValue = -1;

				unsafe
				{
					var tryDisableNagle = WinsockInterop.setsockopt(serverSocket, WinsockInterop.IPPROTO_TCP, WinsockInterop.TCP_NODELAY, (Byte*) &optionValue, sizeof(Int32));

					// check if attempt has succeed
					if (tryDisableNagle == WinsockInterop.SOCKET_ERROR)
					{
						return false;
					}
				}
			}

			// try enable faster operations on the loopback if requested
			if (settings.UseFastLoopback)
			{
				unsafe
				{
					UInt32 optionValue = 1;

					UInt32 dwBytes;

					var tryEnableFastLoopbackResult = WinsockInterop.WSAIoctl(serverSocket, WinsockInterop.SIO_LOOPBACK_FAST_PATH, &optionValue, sizeof(UInt32), null, 0, out dwBytes, IntPtr.Zero, IntPtr.Zero);

					// check if attempt has succeed
					if (tryEnableFastLoopbackResult == WinsockInterop.SOCKET_ERROR)
					{
						return false;
					}
				}
			}

			// try bind
			{
				// compose address
				var address = new IN_ADDR
				{
					s_addr = 0
				};

				// compose socket address
				var socketAddress = new SOCKADDR_IN
				{
					sin_family = WinsockInterop.AF_INET,
					sin_port = WinsockInterop.htons(settings.Port),
					sin_addr = address
				};

				// try associate address with socket
				var tryBindResult = WinsockInterop.bind(serverSocket, ref socketAddress, SOCKADDR_IN.Size);

				if (tryBindResult == WinsockInterop.SOCKET_ERROR)
				{
					return false;
				}
			}

			// try start listen
			{
				var tryStartListen = WinsockInterop.listen(serverSocket, settings.AcceptBacklogLength);

				if (tryStartListen == WinsockInterop.SOCKET_ERROR)
				{
					return false;
				}
			}

			return true;
		}
示例#2
0
 public static extern Int32 bind([In] SOCKET s, [In] ref SOCKADDR_IN name, [In] Int32 namelen);