How to use the cflib.utils.callbacks.Caller function in cflib

logger = logging.getLogger(__name__)


class State:
    """Stat of the connection procedure"""
    DISCONNECTED = 0
    INITIALIZED = 1
    CONNECTED = 2
    SETUP_FINISHED = 3


class Crazyflie():
    """The Crazyflie class"""

    # Called on disconnect, no matter the reason
    disconnected = Caller()
    # Called on unintentional disconnect only
    connection_lost = Caller()
    # Called when the first packet in a new link is received
    link_established = Caller()
    # Called when the user requests a connection
    connection_requested = Caller()
    # Called when the link is established and the TOCs (that are not cached)
    # have been downloaded
    connected = Caller()
    # Called if establishing of the link fails (i.e times out)
    connection_failed = Caller()
    # Called for every packet received
    packet_received = Caller()
    # Called for every packet sent
    packet_sent = Caller()
    # Called when the link driver updates the link quality measurement

def __init__(self, period, callback):
        self._callbacks = Caller()
        self._callbacks.add_callback(callback)
        self._started = False
        self._period = period
        self._thread = None

class Crazyflie():
    """The Crazyflie class"""

    # Called on disconnect, no matter the reason
    disconnected = Caller()
    # Called on unintentional disconnect only
    connection_lost = Caller()
    # Called when the first packet in a new link is received
    link_established = Caller()
    # Called when the user requests a connection
    connection_requested = Caller()
    # Called when the link is established and the TOCs (that are not cached)
    # have been downloaded
    connected = Caller()
    # Called if establishing of the link fails (i.e times out)
    connection_failed = Caller()
    # Called for every packet received
    packet_received = Caller()
    # Called for every packet sent
    packet_sent = Caller()
    # Called when the link driver updates the link quality measurement
    link_quality_updated = Caller()

    state = State.DISCONNECTED

    def __init__(self, link=None, ro_cache=None, rw_cache=None):
        """
        Create the objects from this module and register callbacks.

        ro_cache -- Path to read-only cache (string)

from cflib.utils.callbacks import Caller


class State:
    """Stat of the connection procedure"""
    DISCONNECTED = 0
    INITIALIZED = 1
    CONNECTED = 2
    SETUP_FINISHED = 3


class Crazyflie():
    """The Crazyflie class"""

    # Called on disconnect, no matter the reason
    disconnected = Caller()
    # Called on unintentional disconnect only
    connection_lost = Caller()
    # Called when the first packet in a new link is received
    link_established = Caller()
    # Called when the user requests a connection
    connection_requested = Caller()
    # Called when the link is established and the TOCs (that are not cached)
    # have been downloaded
    connected = Caller()
    # Called if establishing of the link fails (i.e times out)
    connection_failed = Caller()
    # Called for every packet received
    packet_received = Caller()
    # Called for every packet sent
    packet_sent = Caller()
    # Called when the link driver updates the link quality measurement

connection_lost = Caller()
    # Called when the first packet in a new link is received
    link_established = Caller()
    # Called when the user requests a connection
    connection_requested = Caller()
    # Called when the link is established and the TOCs (that are not cached)
    # have been downloaded
    connected = Caller()
    # Called if establishing of the link fails (i.e times out)
    connection_failed = Caller()
    # Called for every packet received
    packet_received = Caller()
    # Called for every packet sent
    packet_sent = Caller()
    # Called when the link driver updates the link quality measurement
    link_quality_updated = Caller()

    state = State.DISCONNECTED

    def __init__(self, link=None, ro_cache=None, rw_cache=None):
        """
        Create the objects from this module and register callbacks.

        ro_cache -- Path to read-only cache (string)
        rw_cache -- Path to read-write cache (string)
        """
        self.link = link
        self._toc_cache = TocCache(ro_cache=ro_cache,
                                   rw_cache=rw_cache)

        self.incoming = _IncomingPacketHandler(self)
        self.incoming.setDaemon(True)

# Called on disconnect, no matter the reason
    disconnected = Caller()
    # Called on unintentional disconnect only
    connection_lost = Caller()
    # Called when the first packet in a new link is received
    link_established = Caller()
    # Called when the user requests a connection
    connection_requested = Caller()
    # Called when the link is established and the TOCs (that are not cached)
    # have been downloaded
    connected = Caller()
    # Called if establishing of the link fails (i.e times out)
    connection_failed = Caller()
    # Called for every packet received
    packet_received = Caller()
    # Called for every packet sent
    packet_sent = Caller()
    # Called when the link driver updates the link quality measurement
    link_quality_updated = Caller()

    state = State.DISCONNECTED

    def __init__(self, link=None, ro_cache=None, rw_cache=None):
        """
        Create the objects from this module and register callbacks.

        ro_cache -- Path to read-only cache (string)
        rw_cache -- Path to read-write cache (string)
        """
        self.link = link
        self._toc_cache = TocCache(ro_cache=ro_cache,

def __init__(self, name, period_in_ms):
        """Initialize the entry"""
        self.data_received_cb = Caller()
        self.error_cb = Caller()
        self.started_cb = Caller()
        self.added_cb = Caller()
        self.err_no = 0

        self.id = LogConfig._config_id_counter
        LogConfig._config_id_counter = (LogConfig._config_id_counter + 1) % 255
        self.cf = None
        self.period = int(period_in_ms / 10)
        self.period_in_ms = period_in_ms
        self._added = False
        self._started = False
        self.valid = False
        self.variables = []
        self.default_fetch_as = []
        self.name = name

if not os.path.exists(ConfigManager().configs_dir):
            logger.info("No user config found, copying dist files")
            os.makedirs(ConfigManager().configs_dir)

        for f in glob.glob(
                cfclient.module_path + "/configs/input/[A-Za-z]*.json"):
            dest = os.path.join(ConfigManager().
                                configs_dir, os.path.basename(f))
            if not os.path.isfile(dest):
                logger.debug("Copying %s", f)
                shutil.copy2(f, ConfigManager().configs_dir)

        ConfigManager().get_list_of_configs()

        self.input_updated = Caller()
        self.assisted_input_updated = Caller()
        self.heighthold_input_updated = Caller()
        self.hover_input_updated = Caller()
        self.rp_trim_updated = Caller()
        self.emergency_stop_updated = Caller()
        self.device_discovery = Caller()
        self.device_error = Caller()
        self.assisted_control_updated = Caller()
        self.alt1_updated = Caller()
        self.alt2_updated = Caller()

        # Call with 3 bools (rp_limiting, yaw_limiting, thrust_limiting)
        self.limiting_updated = Caller()

cfclient.module_path + "/configs/input/[A-Za-z]*.json"):
            dest = os.path.join(ConfigManager().
                                configs_dir, os.path.basename(f))
            if not os.path.isfile(dest):
                logger.debug("Copying %s", f)
                shutil.copy2(f, ConfigManager().configs_dir)

        ConfigManager().get_list_of_configs()

        self.input_updated = Caller()
        self.assisted_input_updated = Caller()
        self.heighthold_input_updated = Caller()
        self.hover_input_updated = Caller()
        self.rp_trim_updated = Caller()
        self.emergency_stop_updated = Caller()
        self.device_discovery = Caller()
        self.device_error = Caller()
        self.assisted_control_updated = Caller()
        self.alt1_updated = Caller()
        self.alt2_updated = Caller()

        # Call with 3 bools (rp_limiting, yaw_limiting, thrust_limiting)
        self.limiting_updated = Caller()

def __init__(self, crazyflie=None):
        self.log_blocks = []
        # Called with newly created blocks
        self.block_added_cb = Caller()

        self.cf = crazyflie
        self.toc = None
        self.cf.add_port_callback(CRTPPort.LOGGING, self._new_packet_cb)

        self.toc_updated = Caller()
        self.state = IDLE
        self.fake_toc_crc = 0xDEADBEEF

        self._refresh_callback = None
        self._toc_cache = None