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C# TdsParserStateObject.RestoreErrorAndWarningAfterAttention方法代码示例

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


在下文中一共展示了TdsParserStateObject.RestoreErrorAndWarningAfterAttention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: ProcessAttention

        private void ProcessAttention(TdsParserStateObject stateObj)
        {
            if (_state == TdsParserState.Closed || _state == TdsParserState.Broken)
            {
                return;
            }
            Debug.Assert(stateObj._attentionSent, "invalid attempt to ProcessAttention, attentionSent == false!");

            // Attention processing scenarios:
            // 1) EOM packet with header ST_AACK bit plus DONE with status DONE_ATTN
            // 2) Packet without ST_AACK header bit but has DONE with status DONE_ATTN
            // 3) Secondary timeout occurs while reading, break connection

            // Since errors can occur and we need to cancel prior to throwing those errors, we
            // cache away error state and then process TDS for the attention.  We restore those
            // errors after processing.
            stateObj.StoreErrorAndWarningForAttention();

            try
            {
                // Call run loop to process looking for attention ack.
                Run(RunBehavior.Attention, null, null, null, stateObj);
            }
            catch (Exception e)
            {
                if (!ADP.IsCatchableExceptionType(e))
                {
                    throw;
                }

                // If an exception occurs - break the connection.
                // Attention error will not be thrown in this case by Run(), but other failures may.
                _state = TdsParserState.Broken;
                _connHandler.BreakConnection();

                throw;
            }

            stateObj.RestoreErrorAndWarningAfterAttention();

            Debug.Assert(!stateObj._attentionSent, "Invalid attentionSent state at end of ProcessAttention");
        }
开发者ID:nnyamhon,项目名称:corefx,代码行数:42,代码来源:TdsParser.cs


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