way to send an object to the main thread from task

[PatV 1]

Delphi 10.3

Omnithead 3.07.5

 

Hi all,

 

I'm testing and playing with the sample 24_ConnectionPool, so in the main form I've added

 

procedure TfrmConnectionPoolDemo.btnScheduleClick(Sender: TObject);

var
  i : integer;
  Params  : TParameters;

begin

 WithParamsReset(Params);
 WithParam(Params,cDteFrom,'2019/01/01',dtString);
 WithParam(Params,cDteTo  ,'2019/09/01',dtString);
 

 for i:=0 to 99 do    // for testing purpose launch 100 task

 begin
    Log(Format('Creating task %d',));
    CreateTask(Worker,format('%0.2d',))
      .MonitorWith(OTLMonitor)
      .SetParameter('Params',TOmniValue.FromArray<rParameter>(Params))
      .SetParameter('ProcName','prc_ProcedureToCall')
      .Schedule(FConnectionPool); 
 end;
end;

 

now my question is ;

 

how can I retreive the result of the data connection in an object and send it from task Worker to the main thread ?

 

I was thinking about msg.msgData  from IOmniMessage  and retreive it through OTLMonitor  or insert a TOmniTaskInvokeFunction  into my Worker task

 

What is the best way ?

 

Thanks 

 

Patrick

 

 

 

 

 

 

 

 

[Primož Gabrijelčič 223]

Just use any of the mechanisms for sending data to the main thread (Task.Comm.Send, Task.Invoke).

 

Or standard Delphi mechanisms (TThread.Queue).

 

Or am I missing something?

 

Edited September 5, 2019 by Primož Gabrijelčič

[PatV 1]

Thanks again Primoz for your fast answer, I'll go with task.Comm.Send 

 

Regards

 

Patrick