Global Exception Handler

Netduino Development
1

Is there any equivalent to the global exception handler in the microframework? If an unhandled exception occurs I need the system to reboot, not crash and stop running. I can’t have a device in the field waiting for someone to “press the reset button”. I need this system to be able to recover without human intervention. Any ideas?

2

Will wrapping all of the code in your Main method in an exception handler perform the same function?

You may need to do the same for any threads.

Regards,
Mark

3

Thanks for the advice. I was so focused on trying to find the equivalent of the standard .NET global handler that I didn’t think to try that.

A follow up question… is there a way to print the call stack or at least the name of the function that threw the exception in the microframework. It looks like the full .NET implementation has a callstack feature that the microframework does not. I’m hoping I just haven’t found the equivalent function call for System.Diagnostics.StackTrace().

4

Not sure if you have already handled this but to go along with what Nevyn was saying…

something along the lines of this might help depending on your flow.

        try
        {
            MyApp.Run();
        }
        catch (Exception e)
        {
            if (e == REQUIRES_REBOOT_EXCEPTION)//However you determine the system should reboot
            {
                //You could inspect the exception here.
                // It is not a stack trace but could provide some info
               
               LogException(e);
                var ie = e.InnerException;
                while(ie !=null)
                {
                      LogException(ie);
                      ie = ie.InnerException;
                }

                //There is another overload in case you have listeners to the OnRebootEvent 
                Microsoft.SPOT.Hardware.PowerState.RebootDevice(false);
            }
        }