Chris, I commented out those lines and sure enough I now get all the errors in my UI again. I guess I have two options: Stop using HAL gremlin and sourceview or use Gstat exclusively.
Gstat one solution would be for my to stop using the HAL_ On Thu, Apr 27, 2017 at 12:09 PM, Chris Morley <chrisinnana...@hotmail.com> wrote: > > > > ________________________________ > From: Kurt Jacobson <kurtcjacob...@gmail.com> > Sent: April 27, 2017 3:22 PM > To: EMC developers > Subject: Re: [Emc-developers] Error channel missing errors > > > > > A change recently in master has Gstat poll for errors. > > > Does it poll even if I am not using Gstat? > > > > Are you using Gstat or are you using gladevcp (it uses Gstat) ? > > > I am not using Gstat. The only GladeVCP widgets I am using are Gremlin and > Sourceveiw. Do these use Gstat now? > > > > Are you also polling separately for errors? > > > Yes, I have my GUI polling for errors. > > > > Are you using axis for the main GUI? > > > No, it is a completely stand alone GUI. > > > > Errors can only be read by _ONE_ source,. > > if using multiply programs to read error stats It's unpredictable who > gets > > them. > > > So do errors "get popped from the stack" when they are polled or is there > some other reason why only one source can poll errors? > I guess I assumed that error.poll() would be like stat.poll(), which as far > as I know can be polled by multiple sources. > > > > Ideally I would recommend using Gstat. > > I have noticed GStat doesn't seem to send the error messages all the time > > too. > > I have not figured out the problem nor confirmed if it's just my system. > > > So it seems like you have noticed that same behavior I have. Could this > problem be elsewhere, maybe in the python interface, or deeper? > > > > In the end I may need to remove error polling from GStat. > > > > Chris M > > > Thank you very much Chris, and sorry for all the questions! > > Kurt > > > > Any gladevcp widget that uses linuxcnc status uses Gstat (gremlin and > sourceview use it) > This somewhat explains the situation: > http://linuxcnc.org/docs/2.7/html/config/python-interface. > html#_reading_the_error_channel > I am sure that it is done this way so you can't poll and get a 'stale' > error message. > > <http://linuxcnc.org/docs/2.7/html/config/python-interface. > html#_reading_the_error_channel>Gladevcp uses Gstat in a way that only > uses one instance between all the widgets, unfortunately if another > python program (even another instance of gladevcp) uses Gstat then there > will be two polling of the error channel. > > The more I explain this the more I realize I think I need to remove error > polling. > That would be too bad as using Gstat with error polling was simple and > clean. > It seems a rethink of error status in linuxcnc is in order. > > One check to see if it this is the problem is edit the > lib/python/hal_glib.py file. > remove these line from def update: > > try: > e = self.error.poll() > if e: > kind, text = e > if kind in (linuxcnc.NML_ERROR, linuxcnc.OPERATOR_ERROR): > self.emit('error-message',text) > elif kind in (linuxcnc.NML_TEXT, linuxcnc.OPERATOR_TEXT): > self.emit('text-message',text) > elif kind in (linuxcnc.NML_DISPLAY, > linuxcnc.OPERATOR_DISPLAY): > self.emit('display-message',text) > except: > pass > > No need to recompile after this. > Then try your program again. > If all is well then that is the problem. > > Chris M > > <http://linuxcnc.org/docs/2.7/html/config/python-interface. > html#_reading_the_error_channel> > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
