client_mananger.py
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1 #!/usr/bin/env python
2 # Software License Agreement (BSD License)
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33 import rospy
34 import threading
35 from rosbridge_msgs.msg import ConnectedClient, ConnectedClients
36 from std_msgs.msg import Int32
37 
38 
40  def __init__(self):
41  # Publisher for number of connected clients
42  self._client_count_pub = rospy.Publisher(
43  'client_count', Int32, queue_size=10, latch=True)
44  # Publisher for connected clients
45  self._conn_clients_pub = rospy.Publisher(
46  'connected_clients', ConnectedClients, queue_size=10, latch=True)
47  self._lock = threading.Lock()
48  self._client_count = 0
49  self._clients = {}
50  self.__publish()
51 
52  def __publish(self):
53  msg = ConnectedClients()
54  msg.clients = list(self._clients.values())
55  self._conn_clients_pub.publish(msg)
56  self._client_count_pub.publish(len(msg.clients))
57 
58  def add_client(self, client_id, ip_address):
59  with self._lock:
60  client = ConnectedClient()
61  client.ip_address = ip_address
62  client.connection_time = rospy.Time.now()
63  self._clients[client_id] = client
64  self.__publish()
65 
66  def remove_client(self, client_id, ip_address):
67  with self._lock:
68  self._clients.pop(client_id, None)
69  self.__publish()
def add_client(self, client_id, ip_address)
def remove_client(self, client_id, ip_address)


rosbridge_server
Author(s): Jonathan Mace
autogenerated on Fri May 10 2019 02:17:05