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C# SNIPacket.TakeData方法代码示例

本文整理汇总了C#中SNIPacket.TakeData方法的典型用法代码示例。如果您正苦于以下问题:C# SNIPacket.TakeData方法的具体用法?C# SNIPacket.TakeData怎么用?C# SNIPacket.TakeData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SNIPacket的用法示例。


在下文中一共展示了SNIPacket.TakeData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: HandleReceiveComplete

        /// <summary>
        /// Process a receive completion
        /// </summary>
        /// <param name="packet">SNI packet</param>
        /// <param name="sniErrorCode">SNI error code</param>
        public void HandleReceiveComplete(SNIPacket packet, uint sniErrorCode)
        {
            SNISMUXHeader currentHeader = null;
            SNIPacket currentPacket = null;
            SNIMarsHandle currentSession = null;

            if (sniErrorCode != TdsEnums.SNI_SUCCESS)
            {
                lock (this)
                {
                    HandleReceiveError();
                    return;
                }
            }

            while (true)
            {
                lock (this)
                {
                    if (_currentHeaderByteCount != SNISMUXHeader.HEADER_LENGTH)
                    {
                        currentHeader = null;
                        currentPacket = null;
                        currentSession = null;

                        while (_currentHeaderByteCount != SNISMUXHeader.HEADER_LENGTH)
                        {
                            int bytesTaken = packet.TakeData(_headerBytes, _currentHeaderByteCount, SNISMUXHeader.HEADER_LENGTH - _currentHeaderByteCount);
                            _currentHeaderByteCount += bytesTaken;

                            if (bytesTaken == 0)
                            {
                                sniErrorCode = ReceiveAsync(ref packet);

                                if (sniErrorCode == TdsEnums.SNI_SUCCESS_IO_PENDING)
                                {
                                    return;
                                }

                                HandleReceiveError();
                                return;
                            }
                        }

                        _currentHeader = new SNISMUXHeader()
                        {
                            SMID = _headerBytes[0],
                            flags = _headerBytes[1],
                            sessionId = BitConverter.ToUInt16(_headerBytes, 2),
                            length = BitConverter.ToUInt32(_headerBytes, 4) - SNISMUXHeader.HEADER_LENGTH,
                            sequenceNumber = BitConverter.ToUInt32(_headerBytes, 8),
                            highwater = BitConverter.ToUInt32(_headerBytes, 12)
                        };

                        _dataBytesLeft = (int)_currentHeader.length;
                        _currentPacket = new SNIPacket(null);
                        _currentPacket.Allocate((int)_currentHeader.length);
                    }

                    currentHeader = _currentHeader;
                    currentPacket = _currentPacket;

                    if (_currentHeader.flags == (byte)SNISMUXFlags.SMUX_DATA)
                    {
                        if (_dataBytesLeft > 0)
                        {
                            int length = packet.TakeData(_currentPacket, _dataBytesLeft);
                            _dataBytesLeft -= length;

                            if (_dataBytesLeft > 0)
                            {
                                sniErrorCode = ReceiveAsync(ref packet);

                                if (sniErrorCode == TdsEnums.SNI_SUCCESS_IO_PENDING)
                                {
                                    return;
                                }

                                HandleReceiveError();
                                return;
                            }
                        }
                    }

                    _currentHeaderByteCount = 0;

                    if (!_sessions.ContainsKey(_currentHeader.sessionId))
                    {
                        SNILoadHandle.SingletonInstance.LastError = new SNIError(SNIProviders.SMUX_PROV, 0, SNICommon.InvalidParameterError, string.Empty);
                        HandleReceiveError();
                        _lowerHandle.Dispose();
                        _lowerHandle = null;
                        return;
                    }

//.........这里部分代码省略.........
开发者ID:er0dr1guez,项目名称:corefx,代码行数:101,代码来源:SNIMarsConnection.cs


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