Re: Invoke Scriptblock with parameters in a new thread

Quote:

> I'm not a dev, but just wanted to point out that PowerShell v1 only
> supports running under MTA.
>
> PowerShell v2 (currently at CTP3) supports STA (but still defaults as MTA).
>
> Marco
>

Hi Marco,
I'm really pleased that you reflect on my problem!!

I still tried to run the threads under MTA. But the result was, that the
threads did not run parallel. I also tried the PowerShell V2 CTP.

I found an example to create such a MTA but the used waithandle (from type
ManualResetEvent) does not allow the threads to run parallel.
I'm not very familiar with MTA. Perhaps you can help me ?

Here is the try:

protected override void BeginProcessing()
{
this.m_Runspace = Runspace.DefaultRunspace;
}


protected override void ProcessRecord()
{
//Create a Waithandle
m_Waithandle = new ManualResetEvent(false);

//Start a new thread in a multithreaded apartment
Thread t = new Thread(new ThreadStart(DoWork));
t.SetApartmentState(ApartmentState.MTA);
t.Start();

//Block the current thread
m_Waithandle.WaitOne();
}


public void DoWork()
{
//Set the runspace
Runspace.DefaultRunspace = this.m_Runspace;

//Invoke the Scriptblock
this.m_myScriptBlock.Invoke(this.m_Array);

if (m_Waithandle != null)
{
//Allow the thread to work
m_Waithandle.Set();
}
}


Thank you

I just want to add that the only purpose is to start the command:

this.m_myScriptBlock.Invoke(this.m_Array);

in two or more parallel asynchronous threads.
That means: Every time the Cmdlet is called, the command will be executed in
a new thread.

Thank you for your help.