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C# SocketAsyncEventArgs.DoOperationReceiveFrom方法代码示例

本文整理汇总了C#中System.Net.Sockets.SocketAsyncEventArgs.DoOperationReceiveFrom方法的典型用法代码示例。如果您正苦于以下问题:C# SocketAsyncEventArgs.DoOperationReceiveFrom方法的具体用法?C# SocketAsyncEventArgs.DoOperationReceiveFrom怎么用?C# SocketAsyncEventArgs.DoOperationReceiveFrom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.DoOperationReceiveFrom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: ReceiveFromAsync

        public bool ReceiveFromAsync(SocketAsyncEventArgs e)
        {
            bool retval;

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

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

            if (e == null)
            {
                throw new ArgumentNullException("e");
            }
            if (e.RemoteEndPoint == null)
            {
                throw new ArgumentNullException("RemoteEndPoint");
            }
            if (!CanTryAddressFamily(e.RemoteEndPoint.AddressFamily))
            {
                throw new ArgumentException(SR.Format(SR.net_InvalidEndPointAddressFamily, e.RemoteEndPoint.AddressFamily, _addressFamily), "RemoteEndPoint");
            }

            // We don't do a CAS demand here because the contents of remoteEP aren't used by
            // WSARecvFrom; all that matters is that we generate a unique-to-this-call SocketAddress
            // with the right address family.
            EndPoint endPointSnapshot = e.RemoteEndPoint;
            e._socketAddress = SnapshotAndSerialize(ref endPointSnapshot);

            // DualMode sockets may have updated the endPointSnapshot, and it has to have the same AddressFamily as 
            // e.m_SocketAddres for Create to work later.
            e.RemoteEndPoint = endPointSnapshot;

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

            // Make the native call.
            SocketFlags flags;
            int bytesTransferred;
            SocketError socketError;

            try
            {
                socketError = e.DoOperationReceiveFrom(_handle, out flags, out bytesTransferred);
            }
            catch (Exception ex)
            {
                // Clear in-use flag on event args object. 
                e.Complete();
                throw ex;
            }

            // Handle completion when completion port is not posted.
            if (socketError != SocketError.Success && socketError != SocketError.IOPending)
            {
                e.FinishOperationSyncFailure(socketError, bytesTransferred, flags);
                retval = false;
            }
            else
            {
                retval = true;
            }

            if (s_loggingEnabled)
            {
                Logging.Exit(Logging.Sockets, this, "ReceiveFromAsync", retval);
            }
            return retval;
        }
开发者ID:ReedKimble,项目名称:corefx,代码行数:74,代码来源:Socket.cs


注:本文中的System.Net.Sockets.SocketAsyncEventArgs.DoOperationReceiveFrom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。