def checkConnectivity(controller=None):
"""Check for Internet connectivity - if no Internet connectivity is available,
wait for up to 30 seconds and then fail (this is used to handle cases where
the device was offline and the Internet connection is just being established)"""
status = modrana.dmod.connectivity_status
if status is constants.CONNECTIVITY_UNKNOWN: # Connectivity status monitoring not supported
return status # skip
elif status is constants.ONLINE:
return status # Internet connectivity is most probably available
elif status is constants.OFFLINE:
startTimestamp = time.time()
elapsed = 0
if controller:
controller.status = "waiting for Internet connectivity"
while elapsed < constants.INTERNET_CONNECTIVITY_TIMEOUT:
status = modrana.dmod.connectivity_status
log.info('waiting for internet connectivity')
log.info(status)
if status == True or status is None:
break
# check if the thread was cancelled
if controller and controller.callback is None:
# the thread was cancelled
log.info("connectivity status check cancelled")
status = constants.CONNECTIVITY_UNKNOWN
break
time.sleep(1)
elapsed = time.time() - startTimestamp
if status is constants.OFFLINE:
modrana.notify("requirements: failed to connect to the Internet")
return status
else:
log.warning('warning, unknown connection status:')
log.warning(status)
return status
def checkConnectivity(controller=None):
"""Check for Internet connectivity - if no Internet connectivity is available,
wait for up to 30 seconds and then fail (this is used to handle cases where
the device was offline and the Internet connection is just being established)"""
status = modrana.dmod.connectivityStatus
if status is constants.CONNECTIVITY_UNKNOWN: # Connectivity status monitoring not supported
return status # skip
elif status is constants.ONLINE:
return status # Internet connectivity is most probably available
elif status is constants.OFFLINE:
startTimestamp = time.time()
elapsed = 0
if controller:
controller.status = "waiting for Internet connectivity"
while elapsed < constants.INTERNET_CONNECTIVITY_TIMEOUT:
status = modrana.dmod.connectivityStatus
log.info('waiting for internet connectivity')
log.info(status)
if status == True or status is None:
break
# check if the thread was cancelled
if controller and controller.callback is None:
# the thread was cancelled
log.info("connectivity status check cancelled")
status = constants.CONNECTIVITY_UNKNOWN
break
time.sleep(1)
elapsed = time.time() - startTimestamp
if status is constants.OFFLINE:
modrana.notify("requirements: failed to connect to the Internet")
return status
else:
log.warning('warning, unknown connection status:')
log.warning(status)
return status
def locateCurrentPosition(controller=None):
"""Try to locate current position and return it when done or time out"""
result = None
sleepTime = 0.5 # in seconds
pos = modrana.get('pos', None)
fix = modrana.get('fix', 1)
# check if GPS usage is explicitly disabled in modRana
gpsEnabled = modrana.get('GPSEnabled')
if gpsEnabled == False:
if pos:
modrana.notify("GPS OFF, using last known position", 5000)
return Point(*pos)
else:
modrana.notify("GPS OFF, no last known position", 5000)
return None
if fix > 1 and pos:
return Point(*pos) # fix found, return it at once
# check if GPS hardware has been enabled
location = modrana.m.get("location")
if not location.enabled:
# location usage has not be disabled but location
# has not been started, so start location
location.start_location()
# wait for the fix
startTimestamp = time.time()
elapsed = 0
if controller:
controller.status = "GPS fix in progress"
while elapsed < constants.LOCATION_TIMEOUT:
pos = modrana.get('pos', None)
fix = modrana.get('fix', 1)
if fix > 1 and pos:
break
time.sleep(sleepTime)
elapsed = time.time() - startTimestamp
if fix > 1 and pos: # got GPS fix ?
return Point(*pos)
else: # no GPS lock
pos = modrana.get("pos")
if pos:
modrana.notify("no fix, using last known position", 5000)
return Point(*pos)
else:
modrana.notify("failed to get GPS fix", 5000)
return None
def locateCurrentPosition(controller=None):
"""Try to locate current position and return it when done or time out"""
result = None
sleepTime = 0.5 # in seconds
pos = modrana.get('pos', None)
fix = modrana.get('fix', 1)
# check if GPS usage is explicitly disabled in modRana
gpsEnabled = modrana.get('GPSEnabled')
if gpsEnabled == False:
if pos:
modrana.notify("GPS OFF, using last known position", 5000)
return Point(*pos)
else:
modrana.notify("GPS OFF, no last known position", 5000)
return None
if fix > 1 and pos:
return Point(*pos) # fix found, return it at once
# check if GPS hardware has been enabled
location = modrana.m.get("location")
if not location.enabled:
# location usage has not be disabled but location
# has not been started, so start location
location.startLocation()
# wait for the fix
startTimestamp = time.time()
elapsed = 0
if controller:
controller.status = "GPS fix in progress"
while elapsed < constants.LOCATION_TIMEOUT:
pos = modrana.get('pos', None)
fix = modrana.get('fix', 1)
if fix > 1 and pos:
break
time.sleep(sleepTime)
elapsed = time.time() - startTimestamp
if fix > 1 and pos: # got GPS fix ?
return Point(*pos)
else: # no GPS lock
pos = modrana.get("pos")
if pos:
modrana.notify("no fix, using last known position", 5000)
return Point(*pos)
else:
modrana.notify("failed to get GPS fix", 5000)
return None