def run(self, queue_name='default', sleep_time=1, verbose=False):
"""Worker process: ties to the given queue and handle all incoming tasks
@queue_name - name of the queue to tie with
@sleep_time - pause time between two tasks"""
queue = Queue()
while not self.SHUTDOWN_IN_PROGRESS:
try:
if verbose:
print '[remaining tasks number: %s] ' % queue.length(queue_name),
result = queue.pop(queue_name=queue_name, timeout=10)
except Exception, e:
result = None
print >> sys.stderr, 'An exception occurs during the proc processing: %s' % e
if verbose:
print result
time.sleep(sleep_time)
