digital clock applet is not multi-user-friendly

[Bernhard Schussek]

The digital clock applet only works for the first user that logs in (until a restart). For every other user, the applet will crash.

I suppose the problem is that the applet creates an image with a hardcoded filename in the global temp directory, which is then only writable by the user that created it.

The bug applies to the package avant-window-navigator-br 0.3.1.bzr222.1~hardy and awn-core-applets-br 0.3.1.br415.1~hardy under Ubuntu Hardy Beta.

Traceback (most recent call last):
  File "/usr/lib/awn/applets/digitalClock/digitalClock.py", line 110, in <module>
    applet = App (awn.uid, awn.orient, awn.height)
  File "/usr/lib/awn/applets/digitalClock/digitalClock.py", line 34, in __init__
    self.clock = dgTime.dgTime(self.pf.prefs, self)
  File "/usr/lib/awn/applets/digitalClock/dgTime.py", line 23, in __init__
    self.draw_clock()
  File "/usr/lib/awn/applets/digitalClock/dgTime.py", line 59, in draw_clock
    cs.write_to_png (self.tmp_image)
IOError: error while writing to output stream

[Bernhard Schussek (bschussek)]

I found a fix. As awn is started in a different process for each user, it works to insert the process ID in the filename:

Change dgTime.py:14 to the following:

  tmp_image = os.path.join(tmp_dir, 'digitalclock.%s.png' % os.getpid())

[Mark Lee (malept)]

Fixed in r438.