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import zmq
from gi.repository import GLib
READ_EVENTS = (
GLib.IOCondition.IN |
GLib.IOCondition.HUP |
GLib.IOCondition.ERR
)
class ZMQSource(GLib.Source):
def set_socket(self, sock):
self.sock = sock
fd = sock.getsockopt(zmq.FD)
self.poll_fd = GLib.PollFD(
fd=fd,
events=READ_EVENTS,
)
self.add_poll(self.poll_fd)
def prepare(self):
return (False, -1)
def check(self):
if not self.poll_fd.revents:
return False
events = self.sock.getsockopt(zmq.EVENTS)
return bool(events & zmq.POLLIN)
def dispatch(self, callback, user_data):
try:
while True:
data = self.sock.recv(zmq.NOBLOCK)
callback(self.sock, data, *user_data)
except zmq.ZMQError as e:
if e.errno != zmq.EAGAIN:
raise
return True
_ZMQSource = ZMQSource
def ZMQSource(sock):
s = _ZMQSource()
s.set_socket(sock)
return s
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