Hi,
There seems to be some oddity with getServices() and D-Bus timeout. I
was able to reproduce (not very often) this on my 'big' machine but it
seems to hit more often on embedded boards and a wifi scan triggering.
Here is a simplified version the script lufie is using. Maybe I am able
to get also the corresponding connman log when it happens again.
cheers,
daniel
a typical log:
connmanMonitor::propertyChanged
connmanMonitor::servicesChanged
START: getServices !
getServices duration: 0.00309801101685
START: getServices !
getServices duration: 0.0032811164856
START: getServices !
getServices duration: 0.00319886207581
START: getServices !
getServices duration: 0.00316905975342
when something blocks:
connmanMonitor::servicesChanged
START: getServices !
getServices duration: 0.00296497344971
START: getServices !
getServices duration: 0.00302910804749
START: getServices !
getServices duration: 0.00310301780701
connmanMonitor::managerPropertyChanged
connmanMonitor::propertyChanged
connmanMonitor::managerPropertyChanged
connmanMonitor::propertyChanged
connmanMonitor::servicesChanged
START: getServices !
getServices duration: 0.00301790237427
START: getServices !
getServices duration: 0.00303387641907
START: getServices !
getServices duration: 6.37309789658
or:
START: getServices !
getServices duration: 0.00313091278076
START: getServices !
getServices duration: 0.00323581695557
START: getServices !
getServices duration: 0.00313687324524
START: getServices !
getServices duration: 0.00302600860596
START: getServices !
getServices duration: 20.4522678852
connmanMonitor::managerPropertyChanged
connmanMonitor::propertyChanged
connmanMonitor::servicesChanged
START: getServices !
getServices duration: 0.00313305854797
START: getServices !
# Based on lufie's work: http://sprunge.us/ZddQ
import sys
import threading
import time
import dbus
import time
import dbus.mainloop.glib
import dbus.service
import gobject
import traceback
import os
from sys import stdout
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
test_services = True
dbusConnmanManager = None
def readServices():
last_read_services = 0
while test_services == True:
start = time.time()
print(START: getServices !)
dbusServices = dbusConnmanManager.GetServices()
print(getServices duration: + str(time.time() - start))
time.sleep(0.5)
class agentLoop(threading.Thread):
def __init__(self, dbusSystemBus):
print(agentLoop::__init__)
self.dbusSystemBus = dbusSystemBus
self.wifiAgentPath = /test/agent_wifi
self.vpnAgentPath = /test/agent_vpn
threading.Thread.__init__(self)
def run(self):
self.dbusSystemBus.watch_name_owner(
'net.connman.vpn', self.vpnNameOwnerChanged)
self.dbusSystemBus.watch_name_owner(
'net.connman', self.nameOwnerChanged)
try:
print(Connman VPN and Wireless Agent started.)
self.mainLoop = gobject.MainLoop()
self.mainLoop.run()
print(Connman VPN and Wireless Agent stopped.)
except:
pass
def nameOwnerChanged(self, proxy):
print(connman::agentLoop::nameOwnerChanged)
if proxy:
print(connman is connected to system bus)
self.dbusConnmanManager = dbus.Interface(self.dbusSystemBus.get_object('net.connman', /), 'net.connman.Manager')
self.wifiAgent = wifiAgent(
self.dbusSystemBus, self.wifiAgentPath)
self.dbusConnmanManager.RegisterAgent(self.wifiAgentPath)
self.dbusConnmanManager = None
else:
print(connman is disconnected from system bus)
if hasattr(self, wifiAgent):
self.wifiAgent.remove_from_connection(
self.dbusSystemBus, self.wifiAgentPath)
self.wifiAgent = None
def vpnNameOwnerChanged(self, proxy):
print(connman::agentLoop::vpnNameOwnerChanged)
if proxy:
print(vpnd is connected to system bus)
self.dbusConnmanVpnManager = dbus.Interface(self.dbusSystemBus.get_object('net.connman.vpn', /), 'net.connman.vpn.Manager')
self.vpnAgent = vpnAgent(
self.dbusSystemBus, self.vpnAgentPath)
self.dbusConnmanVpnManager.RegisterAgent(self.vpnAgentPath)
self.dbusConnmanVpnManager = None
else:
print(vpnd is disconnected from system bus)
if hasattr(self, vpnAgent):
self.VpnAgent.remove_from_connection(
self.dbusSystemBus, self.vpnAgentPath)
self.VpnAgent = None
def exit(self):
self.mainLoop.quit()
self.dbusConnmanVpnManager = dbus.Interface(self.dbusSystemBus.get_object('net.connman.vpn', /), 'net.connman.vpn.Manager')
self.dbusConnmanManager = dbus.Interface(self.dbusSystemBus.get_object(
'net.connman', /),
