Async mode server pushing events segfaults

[tiagocoutinho]

• Start the following server D1.py with one device of class D1
• Start c1.py which listens to events and floods the device with read attribute requests

Shortly after the server segfaults

server code:

# ----- D1.py -----
import gevent
from tango import GreenMode
from tango.server import Device, attribute

class D1(Device):

  def init_device(self):
    Device.init_device(self)
    self.set_change_event('a1', True, False)
    self.task = gevent.spawn(self.__loop)

  def delete_device(self):
    self.task.kill()

  @attribute
  def a1(self):
    return 4.5678

  def __loop(self):
    while True:
      gevent.sleep(0.01)
      self.push_change_event('a2', 1.234)

D1.run_server(green_mode=GreenMode.Gevent)

... and the client code:

# ----- c1.py -----
import sys
from tango import DeviceProxy, EventType

def f(e): pass

d = DeviceProxy(sys.argv[1])
d.subscribe_event('a1', EventType.CHANGE_EVENT, f)

while True:
  print d.a1

[tiagocoutinho]

Might be related with #168