bumblebee-status/bumblebee_status/modules/contrib/messagereceiver.py

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# pylint: disable=C0111,R0903
"""
Displays the message that's received via unix socket.
Parameteres:
* messagereceiver : Unix socket address (e.g: /tmp/bumblebee_messagereceiver.sock)
"""
import core.module
import core.widget
import core.input
import socket
import threading
import logging
import os
import queue
import json
class Worker(threading.Thread):
def __init__(self, unix_socket_address, queue):
threading.Thread.__init__(self)
self.__unix_socket_address = unix_socket_address
self.__queue = queue
def run(self):
while True:
try:
os.unlink(self.__unix_socket_address)
except OSError as e:
if os.path.exists(self.__unix_socket_address):
logging.exception(
"Couldn't bind to unix socket %s" % self.__unix_socket_address
)
raise
with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s:
s.bind(self.__unix_socket_address)
s.listen()
conn, _ = s.accept()
with conn:
while True:
data = conn.recv(1024)
if not data:
break
self.__queue.put(data.decode("utf-8"))
class Module(core.module.Module):
@core.decorators.every(seconds=1)
def __init__(self, config, theme):
super().__init__(config, theme, core.widget.Widget(self.message))
self.__unix_socket_address = self.parameter("address", "")
self.__message = ""
self.__state = []
self.__queue = queue.Queue()
self.__worker = Worker(self.__unix_socket_address, self.__queue)
self.__worker.daemon = True
self.__worker.start()
def message(self, widget):
return self.__message
def update(self):
try:
received_data = self.__queue.get(block=False)
parsed_data = json.loads(received_data)
self.__message = parsed_data["message"]
self.__state = parsed_data["state"]
except json.JSONDecodeError as e:
logging.exception("Couldn't parse message")
except queue.Empty as e:
pass
def state(self, widget):
return self.__state
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