WmiDataReaderTask.SuspendExecution 方法

定义

命名空间:

Microsoft.SqlServer.Dts.Tasks.WmiDataReaderTask

程序集:

Microsoft.SqlServer.WMIDRTask.dll

指示可执行文件需要挂起。 运行时引擎调用此方法。

public:
 virtual void SuspendExecution();

public void SuspendExecution ();

abstract member SuspendExecution : unit -> unit
override this.SuspendExecution : unit -> unit

Public Sub SuspendExecution ()

实现

SuspendExecution()

示例

下面的代码示例是自定义任务的重写 SuspendExecution 方法的示例。

public void SuspendExecution()   
{  
    lock (this)   
    {  
        // If a suspend is required, do it.   
        if (m_suspendRequired != 0)   
           ChangeEvent(m_canExecute, false);   
        }   

        // The application cannot return from Suspend until the task  
        // is suspended.  
        // This can happen in one of two ways:  
        // 1) The m_suspended event occurs, indicating that the   
        // execute thread has suspended, or   
        // 2) the canExecute flag is set, indicating that a suspend is  
        // no longer required.   
        WaitHandle [] suspendOperationComplete = {m_suspended, m_canExecute};  
        WaitHandle.WaitAny(suspendOperationComplete);  
}  

Public  Sub SuspendExecution()  
    lock (Me)  
    {  
        If m_suspendRequired <> 0 Then  
           ChangeEvent(m_canExecute, False)  
        End If  
    }  
        ' The application cannot return from Suspend until the task  
        ' is suspended. This can happen in one of two ways:  
        ' 1) The m_suspended event occurs, indicating that the   
        ' execute thread has suspended, or   
        ' 2) the canExecute flag is set, indicating that a suspend is  
        ' no longer required.   
        Dim suspendOperationComplete As WaitHandle() = {m_suspended, m_canExecute}  
        WaitHandle.WaitAny(suspendOperationComplete)  

注解

此方法不在代码中使用。 遇到断点时运行时调用它。

但是，如果编写公开断点的多线程自定义任务，则需要为此方法提供代码，此方法继承自 IDTSSuspend 该类。 如果任务是单线程化，这意味着自定义任务中的实现 Execute 不会启动新线程，则无需实现此接口。 有关编写自定义任务的详细信息，请参阅 开发自定义任务。