mirror of
https://github.com/morpheus65535/bazarr
synced 2024-12-28 10:38:26 +00:00
110 lines
3.6 KiB
Python
110 lines
3.6 KiB
Python
import pickle
|
|
import re
|
|
|
|
try:
|
|
import eventlet.green.zmq as zmq
|
|
except ImportError:
|
|
zmq = None
|
|
|
|
from .pubsub_manager import PubSubManager
|
|
|
|
|
|
class ZmqManager(PubSubManager): # pragma: no cover
|
|
"""zmq based client manager.
|
|
|
|
NOTE: this zmq implementation should be considered experimental at this
|
|
time. At this time, eventlet is required to use zmq.
|
|
|
|
This class implements a zmq backend for event sharing across multiple
|
|
processes. To use a zmq backend, initialize the :class:`Server` instance as
|
|
follows::
|
|
|
|
url = 'zmq+tcp://hostname:port1+port2'
|
|
server = socketio.Server(client_manager=socketio.ZmqManager(url))
|
|
|
|
:param url: The connection URL for the zmq message broker,
|
|
which will need to be provided and running.
|
|
:param channel: The channel name on which the server sends and receives
|
|
notifications. Must be the same in all the servers.
|
|
:param write_only: If set to ``True``, only initialize to emit events. The
|
|
default of ``False`` initializes the class for emitting
|
|
and receiving.
|
|
|
|
A zmq message broker must be running for the zmq_manager to work.
|
|
you can write your own or adapt one from the following simple broker
|
|
below::
|
|
|
|
import zmq
|
|
|
|
receiver = zmq.Context().socket(zmq.PULL)
|
|
receiver.bind("tcp://*:5555")
|
|
|
|
publisher = zmq.Context().socket(zmq.PUB)
|
|
publisher.bind("tcp://*:5556")
|
|
|
|
while True:
|
|
publisher.send(receiver.recv())
|
|
"""
|
|
name = 'zmq'
|
|
|
|
def __init__(self, url='zmq+tcp://localhost:5555+5556',
|
|
channel='socketio',
|
|
write_only=False,
|
|
logger=None):
|
|
if zmq is None:
|
|
raise RuntimeError('zmq package is not installed '
|
|
'(Run "pip install pyzmq" in your '
|
|
'virtualenv).')
|
|
|
|
r = re.compile(r':\d+\+\d+$')
|
|
if not (url.startswith('zmq+tcp://') and r.search(url)):
|
|
raise RuntimeError('unexpected connection string: ' + url)
|
|
|
|
url = url.replace('zmq+', '')
|
|
(sink_url, sub_port) = url.split('+')
|
|
sink_port = sink_url.split(':')[-1]
|
|
sub_url = sink_url.replace(sink_port, sub_port)
|
|
|
|
sink = zmq.Context().socket(zmq.PUSH)
|
|
sink.connect(sink_url)
|
|
|
|
sub = zmq.Context().socket(zmq.SUB)
|
|
sub.setsockopt_string(zmq.SUBSCRIBE, u'')
|
|
sub.connect(sub_url)
|
|
|
|
self.sink = sink
|
|
self.sub = sub
|
|
self.channel = channel
|
|
super(ZmqManager, self).__init__(channel=channel,
|
|
write_only=write_only,
|
|
logger=logger)
|
|
|
|
def _publish(self, data):
|
|
pickled_data = pickle.dumps(
|
|
{
|
|
'type': 'message',
|
|
'channel': self.channel,
|
|
'data': data
|
|
}
|
|
)
|
|
return self.sink.send(pickled_data)
|
|
|
|
def zmq_listen(self):
|
|
while True:
|
|
response = self.sub.recv()
|
|
if response is not None:
|
|
yield response
|
|
|
|
def _listen(self):
|
|
for message in self.zmq_listen():
|
|
if isinstance(message, bytes):
|
|
try:
|
|
message = pickle.loads(message)
|
|
except Exception:
|
|
pass
|
|
if isinstance(message, dict) and \
|
|
message['type'] == 'message' and \
|
|
message['channel'] == self.channel and \
|
|
'data' in message:
|
|
yield message['data']
|
|
return
|