Re: Thread.Abort()

Hi !

I just went to http://msdn2.microsoft.com/en-us/library/ty8d3wta.aspx to verify your statement about the deprecation of this methods, but could not verify.

Additionally, I would leave net immidiately;For example, if your mentioned "copy a file to a location", would need too much time, because the underlying system is not resposnible, I must have the option to kill that thread and re-try the whole operation at a later moment. Naturally, one has to deal with dataconsitency in this case very strong.

Just my two cents.
Best regards,
Manfred

Adityanand Pasumarthi wrote:
Hi Alan,

Here is how your class and thread method handler maylook like...

Class MyThreadWrapper
private _myThread
// (Important: Default state should be signaled, i.e. True)
private _continueEvent System.Threading.ManualResetEvent private enumerated type _state (pause, stop, start, resume)
method Pause
{ set _state = pause, _continueEvent.Reset() }
method Stop
{ set _state = stop, _continueEvent.Set() }
method Start
{ set _state = start
_myThread.Start()
}
method Resume
{ set _state = resume, _continueEvent.Set() }
procedure DoSomething()
loop
_continueEvent.Wait(-1) // Wait infinitely on the manual reset event
if (_state == stop) { break; }
Copy a file to a location
Update database record
Read the file content
Write the content to a log file
end loop

What we are doing here is that the thread loop will just wait for ManualResetEvent to be in signaled state (_continueEvent.Set()) before continuing with every iteration in the loop. The event will be in this state when the thread first starts. When we call Pause the_continueEvent will be in non-signaled state and the thread will finish the current loop iteration and then before begining the next iteration will wait for the event to be in signaled state. When we call Resume after some time the _continueEvent will be set to signaled state and the thread will start running again.

Calling Stop() when we are in running state (start or resume) will cause the loop to terminate after completing its current iteration. Calling Stop() when we are in pause state will set the _continueEvent to signaled state and immediately since the _state is stop, the loop will break and the thread will end safely.

Let me know if this helps.

.

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