TailPinnedEventArgs 类

定义

public ref class TailPinnedEventArgs sealed : EventArgs

public sealed class TailPinnedEventArgs : EventArgs

type TailPinnedEventArgs = class
    inherit EventArgs

Public NotInheritable Class TailPinnedEventArgs
Inherits EventArgs

继承

Object

EventArgs

TailPinnedEventArgs

示例

此示例演示如何使用 TailPinned 事件释放日志序列中的空间。

recordSequence.RetryAppend = true;  
recordSequence.TailPinned += new EventHandler<TailPinnedEventArgs>(HandleTailPinned);  

void HandleTailPinned(object sender, TailPinnedEventArgs tailPinnedEventArgs)  
{  
   // tailPinnedEventArgs.TargetSequenceNumber is the target   
   // sequence number to free up space to.    
   // However, this sequence number is not necessarily valid.  We have  
   // to use this sequence number as a starting point for finding a  
   // valid point within the log to advance toward. You need to  
   // identify a record with a sequence number equal to, or greater  
   // than TargetSequenceNumber; let's call this   
   // realTargetSequenceNumber. Once found, move the base  

   recordSequence.AdvanceBaseSequenceNumber(realTargetSequenceNumber);  

}  

注解

TailPinned当记录序列耗尽空间时，可以触发该事件。 触发此事件时，序列（即基序列号）的尾部将向前移动以释放空间。