def _inner():
if initial_delay:
greenthread.sleep(initial_delay)
try:
while self._running:
start = _ts()
self.f(*self.args, **self.kw)
end = _ts()
if not self._running:
break
delay = end - start - interval
if delay > 0:
LOG.warn(_LW('task %(func_name)s run outlasted '
'interval by %(delay).2f sec'),
{'func_name': repr(self.f), 'delay': delay})
greenthread.sleep(-delay if delay < 0 else 0)
except LoopingCallDone as e:
self.stop()
done.send(e.retvalue)
except Exception:
LOG.exception(_LE('in fixed duration looping call'))
done.send_exception(*sys.exc_info())
return
else:
done.send(True)
def _inner():
if initial_delay:
greenthread.sleep(initial_delay)
try:
while self._running:
idle = self.f(*self.args, **self.kw)
if not self._running:
break
if periodic_interval_max is not None:
idle = min(idle, periodic_interval_max)
LOG.debug('Dynamic looping call %(func_name)s sleeping '
'for %(idle).02f seconds',
{'func_name': repr(self.f), 'idle': idle})
greenthread.sleep(idle)
except LoopingCallDone as e:
self.stop()
done.send(e.retvalue)
except Exception:
LOG.exception(_LE('in dynamic looping call'))
done.send_exception(*sys.exc_info())
return
else:
done.send(True)
def _wait_for_exit_or_signal(self, ready_callback=None):
status = None
signo = 0
LOG.debug('Full set of CONF:')
CONF.log_opt_values(LOG, std_logging.DEBUG)
try:
if ready_callback:
ready_callback()
super(ServiceLauncher, self).wait()
except SignalExit as exc:
signame = _signo_to_signame(exc.signo)
LOG.info(_LI('Caught %s, exiting'), signame)
status = exc.code
signo = exc.signo
except SystemExit as exc:
status = exc.code
finally:
self.stop()
if rpc:
try:
rpc.cleanup()
except Exception:
# We're shutting down, so it doesn't matter at this point.
LOG.exception(_LE('Exception during rpc cleanup.'))
return status, signo
def __call__(self, req):
try:
response = req.get_response(self.application)
except Exception:
LOG.exception(_LE('An error occurred during '
'processing the request: %s'))
response = webob.exc.HTTPInternalServerError()
return response
def release(self):
try:
self.unlock()
self.lockfile.close()
LOG.debug('Released file lock "%s"', self.fname)
except IOError:
LOG.exception(_LE("Could not release the acquired lock `%s`"),
self.fname)
def _parse_check(rule):
"""Parse a single base check rule into an appropriate Check object."""
# Handle the special checks
if rule == '!':
return FalseCheck()
elif rule == '@':
return TrueCheck()
try:
kind, match = rule.split(':', 1)
except Exception:
LOG.exception(_LE("Failed to understand rule %s") % rule)
# If the rule is invalid, we'll fail closed
return FalseCheck()
# Find what implements the check
if kind in _checks:
return _checks[kind](kind, match)
elif None in _checks:
return _checks[None](kind, match)
else:
LOG.error(_LE("No handler for matches of kind %s") % kind)
return FalseCheck()
def _child_wait_for_exit_or_signal(self, launcher):
status = 0
signo = 0
# NOTE(johannes): All exceptions are caught to ensure this
# doesn't fallback into the loop spawning children. It would
# be bad for a child to spawn more children.
try:
launcher.wait()
except SignalExit as exc:
signame = _signo_to_signame(exc.signo)
LOG.info(_LI('Child caught %s, exiting'), signame)
status = exc.code
signo = exc.signo
except SystemExit as exc:
status = exc.code
except BaseException:
LOG.exception(_LE('Unhandled exception'))
status = 2
finally:
launcher.stop()
return status, signo
def _parse_text_rule(rule):
"""Parses policy to the tree.
Translates a policy written in the policy language into a tree of
Check objects.
"""
# Empty rule means always accept
if not rule:
return TrueCheck()
# Parse the token stream
state = ParseState()
for tok, value in _parse_tokenize(rule):
state.shift(tok, value)
try:
return state.result
except ValueError:
# Couldn't parse the rule
LOG.exception(_LE("Failed to understand rule %r") % rule)
# Fail closed
return FalseCheck()
def wrapped(*args, **kwargs):
try:
return fn(*args, **kwargs)
except Exception as e:
LOG.exception(_LE("An exception occurred processing " "the API call: %s ") % e)
