proper logging.

This commit is contained in:
Tom Nichols 2010-07-01 16:47:08 -04:00
parent cd2017b8b0
commit 065a164223

View File

@ -9,6 +9,8 @@ import threading
import time
import logging
log = logging.getLogger(__name__)
class StateMachine(object):
@ -98,11 +100,11 @@ class StateMachine(object):
# indicating that transition should not occur:
if not return_val: return return_val
logging.debug(' ==== TRANSITION %s -> %s', self.__current_state, to_state)
log.debug(' ==== TRANSITION %s -> %s', self.__current_state, to_state)
self._set_state( to_state )
return return_val # some 'true' value returned by func or True if func was None
else:
logging.error( "StateMachine bug!! The lock should ensure this doesn't happen!" )
log.error( "StateMachine bug!! The lock should ensure this doesn't happen!" )
return False
finally:
self.notifier.set()
@ -226,24 +228,24 @@ class _StateCtx:
while not self.state_machine[ self.from_state ] or not self.state_machine.lock.acquire(False):
# detect timeout:
if time.time() >= start + self.wait:
logging.debug('StateMachine timeout while waiting for state: %s', self.from_state )
log.debug('StateMachine timeout while waiting for state: %s', self.from_state )
return False
self.state_machine.notifier.wait(self.wait)
self._locked = True # lock has been acquired at this point
self.state_machine.notifier.clear()
logging.debug('StateMachine entered context in state: %s',
log.debug('StateMachine entered context in state: %s',
self.state_machine.current_state() )
return True
def __exit__(self, exc_type, exc_val, exc_tb):
if exc_val is not None:
logging.exception( "StateMachine exception in context, remaining in state: %s\n%s:%s",
log.exception( "StateMachine exception in context, remaining in state: %s\n%s:%s",
self.state_machine.current_state(), exc_type.__name__, exc_val )
if self._locked:
if exc_val is None:
logging.debug(' ==== TRANSITION %s -> %s',
log.debug(' ==== TRANSITION %s -> %s',
self.state_machine.current_state(), self.to_state)
self.state_machine._set_state( self.to_state )