def _clean_prior(self):
""" Cleans up from a previous task that didn't exit cleanly.
Returns ``True`` if previous task was cleaned.
"""
if self._loaded:
try:
pid_file = daemon.get_daemon_pidfile(self)
# check if it exists so we don't raise
if os.path.isfile(pid_file):
# read pid from file
pid = int(common.readfile(pid_file))
# check if pid file is stale
if pid and not daemon.pid_exists(pid):
common.safe_remove_file(pid_file)
raise ValueError
except (ValueError, TypeError):
self._clean()
return True
return False
def _clean_prior(self):
""" Cleans up from a previous task that didn't exit cleanly.
Returns ``True`` if previous task was cleaned.
"""
if self._loaded:
try:
pid_file = daemon.get_daemon_pidfile(self)
# check if it exists so we don't raise
if os.path.isfile(pid_file):
# read pid from file
pid = int(common.readfile(pid_file))
# check if pid file is stale
if pid and not daemon.pid_exists(pid):
common.safe_remove_file(pid_file)
raise ValueError
except (ValueError, TypeError):
self._clean()
return True
return False
def test__pid_exists(self):
""" daemon.pid_exists: determines if process exists for pid.
"""
self.assertTrue(daemon.pid_exists(1)) # valid.. let's assume 1 exists
self.assertFalse(daemon.pid_exists(99999999)) # invalid
