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C# SocketAsyncEventArgs.DoOperationConnect方法代码示例

本文整理汇总了C#中System.Net.Sockets.SocketAsyncEventArgs.DoOperationConnect方法的典型用法代码示例。如果您正苦于以下问题:C# SocketAsyncEventArgs.DoOperationConnect方法的具体用法?C# SocketAsyncEventArgs.DoOperationConnect怎么用?C# SocketAsyncEventArgs.DoOperationConnect使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Net.Sockets.SocketAsyncEventArgs的用法示例。


在下文中一共展示了SocketAsyncEventArgs.DoOperationConnect方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ConnectAsync

        public bool ConnectAsync(SocketAsyncEventArgs e)
        {
            bool retval;

            if (s_loggingEnabled)
            {
                Logging.Enter(Logging.Sockets, this, "ConnectAsync", "");
            }

            if (CleanedUp)
            {
                throw new ObjectDisposedException(GetType().FullName);
            }

            if (e == null)
            {
                throw new ArgumentNullException("e");
            }
            if (e._bufferList != null)
            {
                throw new ArgumentException(SR.net_multibuffernotsupported, "BufferList");
            }
            if (e.RemoteEndPoint == null)
            {
                throw new ArgumentNullException("remoteEP");
            }
            if (_isListening)
            {
                throw new InvalidOperationException(SR.net_sockets_mustnotlisten);
            }

            // Check permissions for connect and prepare SocketAddress.
            EndPoint endPointSnapshot = e.RemoteEndPoint;
            DnsEndPoint dnsEP = endPointSnapshot as DnsEndPoint;

            if (dnsEP != null)
            {
                if (s_loggingEnabled)
                {
                    Logging.PrintInfo(Logging.Sockets, "Socket#" + Logging.HashString(this) + "::ConnectAsync " + SR.net_log_socket_connect_dnsendpoint);
                }

                if (dnsEP.AddressFamily != AddressFamily.Unspecified && !CanTryAddressFamily(dnsEP.AddressFamily))
                {
                    throw new NotSupportedException(SR.net_invalidversion);
                }

                MultipleConnectAsync multipleConnectAsync = new SingleSocketMultipleConnectAsync(this, true);

                e.StartOperationCommon(this);
                e.StartOperationWrapperConnect(multipleConnectAsync);

                retval = multipleConnectAsync.StartConnectAsync(e, dnsEP);
            }
            else
            {
                // Throw if remote address family doesn't match socket.
                if (!CanTryAddressFamily(e.RemoteEndPoint.AddressFamily))
                {
                    throw new NotSupportedException(SR.net_invalidversion);
                }

                e._socketAddress = CheckCacheRemote(ref endPointSnapshot, false);

                // Do wildcard bind if socket not bound.
                if (_rightEndPoint == null)
                {
                    if (endPointSnapshot.AddressFamily == AddressFamily.InterNetwork)
                    {
                        InternalBind(new IPEndPoint(IPAddress.Any, 0));
                    }
                    else
                    {
                        InternalBind(new IPEndPoint(IPAddress.IPv6Any, 0));
                    }
                }

                // Save the old RightEndPoint and prep new RightEndPoint.           
                EndPoint oldEndPoint = _rightEndPoint;
                if (_rightEndPoint == null)
                {
                    _rightEndPoint = endPointSnapshot;
                }

                // Prepare for the native call.
                e.StartOperationCommon(this);
                e.StartOperationConnect();

                // Make the native call.
                int bytesTransferred;
                SocketError socketError = SocketError.Success;
                try
                {
                    socketError = e.DoOperationConnect(this, _handle, out bytesTransferred);
                }
                catch (Exception ex)
                {
                    _rightEndPoint = oldEndPoint;

                    // Clear in-use flag on event args object. 
//.........这里部分代码省略.........
开发者ID:ReedKimble,项目名称:corefx,代码行数:101,代码来源:Socket.cs


注:本文中的System.Net.Sockets.SocketAsyncEventArgs.DoOperationConnect方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。