Is it Omni question ?

[dkprojektai 1]

Hello, my program in thread is communicating with remote server.

 

In thread....          

            CoInitializeEx(NIL, COINIT_MULTITHREADED);
            try

               some error....


               CoUninitialize;

            except
              on E:Exception do begin

                TThread.Queue(nil,
                procedure
                begin
                   F_Form1.Logging(E.ToString);    //Here I have exception and program throw out....
                end);

                CoUninitialize;
              end;
            end;

 

My question - is it borland or omni problem and how to solve it? I can quote it via try..ecxept, but I really want to log the problem.

 

Edited July 12, 2022 by dkprojektai

[Vincent Gsell 11]

Even is heap is captured, object life time is not guaranted.

 

i.e. : Your Exception object (E) is (certainly) no longer available when Proc in queue is running.

 

Put E.Message in a string just before TThread.Queue

 

Hint :

CoInitialize...

Try

 ...

Finally

  CoUninitialize

end;

would be cooler here !

 

 

Edited July 12, 2022 by Vincent Gsell

[Brian Evans 109]

Your problem.  Exception objects are not thread safe so accessing them from two different threads when one is about to destroy it anyway is never going to end well.

 

Also it is totally pointless - any threading so writes don't block should be done in the logging library itself not every place that logs something.