def performEvent(monitor, sequence):
"""
Performs an event on the specified monitor.
If the event has previous events leading up to it, these get performed
first. Each event is performed and a delay of 'steptime' is waited.
'steptime' is a configuration value in the general section and is
in seconds.
After the last event is performed, a snapshot is taken and returned.
"""
with monitor:
# Perform the event sequence
for e in sequence:
e.perform(monitor)
time.sleep(steptime)
return monitor.take_snapshot()
yield e
def load_state(monitor, efg_file):
cache_file = '%s.cache' % efg_file
if os.path.exists(cache_file):
try:
# reload cache file
log.info('loading cache file from %s' % cache_file)
return parser.load(cache_file)
except Exception, e:
log.exception(e)
# initial snapshot
log.info('taking initial snapshot')
with monitor:
initial = monitor.take_snapshot()
return global_state(digraph(), initial)
@requires_monitor(interrupt_ripper)
def main(monitors, cfg):
efg_file = cfg.get('general', 'efg_file')
state, lock = load_state(monitors[0], efg_file), threading.Lock()
config_loc = cfg.get('general', 'configuration')
ignored_patterns = []
try:
ignored_patterns = parser.load(config_loc)
except Exception, e:
# Some error happened when reading the configuration file
log.exception(e)