def _process_send_queue(self, timeout):
"""Process commands to be sent from the queue synchronously.
Commands are sent sequentially.
:param int timeout: The amount of time to wait between executions
in milliseconds.
:raises: raspy.object_disposed_exception.ObjectDisposedException if
this instance has been disposed.
"""
if (not self.__ready or self.__sendQueue is None
or len(self.__sendQueue) == 0):
return
self.__ready = False
if timeout is None:
timeout = 0
# TODO should we do this in a thread?
for _ in itertools.repeat(None, len(self.__sendQueue)):
cmd = self.__sendQueue.pop(0) # Grab the first item in the queue.
if cmd is not None:
self.send_command(cmd)
core_utils.sleep(timeout)
self.__ready = True
def read_gyro(self):
"""Read the gyro and store the value internally.
:raise: raspy.object_disposed_exception.ObjectDisposedException if
this instance has been disposed.
:raises: raspy.io.io_exception.IOException if unable to write to the
gyro.
"""
if self.is_disposed:
raise ObjectDisposedException("ADXL345")
now = system_info.get_current_time_millis()
self.__timeDelta = now - self.__lastRead
self.__lastRead = now
self.__device.write_byte(self.__address, 0x00)
core_utils.sleep(10)
data = self.__device.read_bytes(self.__address, 6)
if len(data) != 6:
msg = "Couldn't read compass data; Return buffer size: "
msg += str(len(data))
raise IOException(msg)
self.a_x.raw_value = ((data[0] & 0xff) << 8) + (data[1] & 0xff)
self.a_y.raw_value = ((data[2] & 0xff) << 8) + (data[3] & 0xff)
self.a_z.raw_value = ((data[3] & 0xff) << 8) + (data[5] & 0xff)
def _execute_poll(self):
"""Execute the poll cycle."""
while not self.__stopEvent.is_set():
new_state = self.state
if new_state != self.__lastState:
old_state = self.__lastState
self.__lastState = new_state
evt = SensorStateChangeEvent(self, old_state, new_state)
self.on_sensor_state_change(evt)
core_utils.sleep(200)
def _execute_poll(self):
"""Execute the poll cycle."""
while not self.__stopEvent.is_set():
detected = self.is_motion_detected
if detected != self.__lastCheckDetected:
self.__lastCheckDetected = detected
now = datetime.now()
evt = MotionDetectedEvent(self.__lastCheckDetected, now)
self.on_motion_state_changed(evt)
core_utils.sleep(500)
def _execute_poll(self):
"""Execute the poll cycle."""
while not self.__stopEvent.is_set():
new_temp = self.get_raw_temperature()
if new_temp != self.__lastTemp:
old_temp = self.__lastTemp
self.__lastTemp = new_temp
evt = TempChangeEvent(old_temp, new_temp)
self.on_temperature_change(evt)
core_utils.sleep(200)
def cancel(self):
"""Cancel the still capture process, if running.
Should emit EVENT_CAPTURE_DONE and include the termination signal.
"""
if not self.__isRunning:
return
self.__syncLock.acquire()
self.__isRunning = False
self.__syncLock.release()
core_utils.sleep(500)
if self.__captureProc is not None:
if self.__captureProc.poll() is not None:
try:
self.__captureProc.kill()
except OSError:
# Process probably already died.
pass
def _execute_poll(self):
"""Execute the poll cycle."""
while not self.__stopEvent.is_set():
self.__pin.read()
core_utils.sleep(500)
