def test_atomic_value_try_update_fail():
raw_value = random.random()
value = AtomicValue(raw_value)
value.lock.acquire()
assert not value.try_update(random.random())
value.lock.release()
assert raw_value == value.get_value()
def test_atomic_value_try_update_succeed():
raw_value = random.random()
value = AtomicValue(raw_value)
value.lock.acquire()
value.lock.release()
assert value.try_update(random.random())
assert raw_value != value.get_value()
def digest_next_sensor_reading(
start_time: float,
data_queue: Queue,
current_reading: AtomicValue,
gps_value: AtomicValue,
altimeter_value: AtomicValue,
magnetometer_accelerometer_value: AtomicValue,
) -> float:
"""Grab the latest values from all sensors and put the data in the queue and atomic store"""
now = time.time()
info = (
now - start_time,
*altimeter_value.get_value(),
*magnetometer_accelerometer_value.get_value(),
*gps_value.get_value(),
)
data_queue.put(info)
current_reading.try_update(info)
return now