def put(self, value):
"""Put string (serialized json, for example) value to the
tail of the redis list.
:param value: data to store in queue"""
key = get_key(self.qname)
yield from self._conn.rpush(key, [value])
def get(self):
"""Dequeue data from head of list, if redis list is empty,
BLPOP command waits for new data.
:return: ``str`` serialized vdata fetched from redis list
"""
key = get_key(self.qname)
data = yield from self._conn.blpop([key,], 0)
return data.value
def size(self):
"""Coroutine to check current size of queue.
:return: ``int`` size of the queue"""
size = yield from self._conn.llen(get_key(self.qname))
return size
