def _processADRRequests(self):
"""Updates devices with target data rate, and sends ADR requests.
This method is called every adrcycletime seconds as a looping task.
"""
# If we are running, return
if self.adrprocessing is True:
returnValue(None)
self.adrprocessing = True
devices = yield Device.all()
sendtime = time.time()
for device in devices:
# Check this device is enabled
if not device.enabled:
continue
# Check ADR is enabled
if not device.adr:
continue
# Set the target data rate
target = device.getADRDatarate(self.band, self.config.adrmargin)
# If no target, or the current data rate is the target, continue
if target is None:
continue
# Set the device adr_datr
yield device.update(adr_datr=target)
# Only send a request if we need to change
if device.tx_datr == device.adr_datr:
continue
# If we are queueing commands, create the command and add to the queue.
# Replace any existing requests.
if self.config.macqueueing:
log.info("Queuing ADR MAC Command")
command = self._createLinkADRRequest(device)
self._dequeueMACCommand(device.deveui, command)
self._queueMACCommand(device.deveui, command)
continue
# Check we have reached the next scheduled ADR message time
scheduled = sendtime + self.config.adrmessagetime
current = time.time()
if current < scheduled:
yield txsleep(scheduled - current)
# Refresh and send the LinkADRRequest
sendtime = time.time()
yield self._sendLinkADRRequest(device)
self.adrprocessing = False
def get(self):
"""Method to get all devices"""
try:
devices = yield Device.all()
if devices is None:
returnValue({})
data = {}
for i,d in enumerate(devices):
data[i] = marshal(d, self.fields)
returnValue(data)
except TimeoutError:
# Exception returns 500 to client
log.error("REST API timeout retrieving all devices")