def on_message_device_cb(client, msg):
device_cb_msg = str(msg.payload)
if g.BOKEH_DEV:
print(device_cb_msg)
new_conn_status = None
if device_cb_msg in ['successfully_connected', 'already_connected']:
new_conn_status = True
elif device_cb_msg == 'ok_to_unsubscribe':
new_conn_status = False
client.unsubscribe([g.t_calibration, g.t_device_ctrl_cb])
util.doc_next_tick(doc, util.add_subscription, client, 'calibration')
elif device_cb_msg in [
'successfully_disconnected', 'no_control_allowed', 'esp_init',
'esp_interrupted'
]:
new_conn_status = False
if new_conn_status is not None:
util.doc_next_tick(doc, util.conn_status_update, conn_status,
new_conn_status)
def on_disconnect(client, userdata, rc):
if rc != 0:
client.loop_stop()
if g.BOKEH_DEV:
print("\nMqtt: Unexpected disconnection.\n")
util.doc_next_tick(doc, util.conn_status_update, conn_status, False)
def device_slc_callback(attr, old, new):
g.device_id = new
g.d_idx = DEVICES['code'].index(g.device_id)
if conn_status.value:
util.doc_next_tick(doc, util.device_control, client, "unsub")
else:
client.unsubscribe([g.t_calibration, g.t_device_ctrl_cb])
util.doc_next_tick(doc, util.add_subscription, client, 'calibration')
def periodic_stream():
global new_data
if new_data:
util.doc_next_tick(doc,
util.stream_update,
source=source1,
new_data=new_data)
new_data = dict()
def device_slc_callback(attr, old, new):
g.device_id = new
g.d_idx = CALIBRATIONS['d_code'].index(g.device_id)
g.c_ang = float(CALIBRATIONS['c_data'][g.d_idx]['angular'])
g.c_lin = float(CALIBRATIONS['c_data'][g.d_idx]['linear'])
if conn_status.value:
disable_stream()
util.doc_next_tick(doc, util.device_control, client, "unsub")
else:
client.unsubscribe([g.t_measure, g.t_device_ctrl_cb])
util.doc_next_tick(doc, util.add_subscription, client, 'measure')
def on_message_device_cb(client, msg):
"""Callback function that handles messages from 't_device_ctrl_cb' topic
which is used as a callback topic to return the results of the control
commands sent to the device.
msg.payload = string with the result
"""
device_cb_msg = str(msg.payload)
if g.BOKEH_DEV:
print(device_cb_msg)
new_conn_status = None
if device_cb_msg == 'successfully_connected':
new_conn_status = True
device_frequency(data_freq_sld.value)
# ''' FOR TESTING/DEBUG
if g.BOKEH_DEV:
if os.path.isfile(FILE_PATH): os.remove(FILE_PATH)
# '''
elif device_cb_msg == 'already_connected':
new_conn_status = True
elif device_cb_msg == 'ok_to_unsubscribe':
new_conn_status = False
client.unsubscribe([g.t_measure, g.t_device_ctrl_cb])
util.doc_next_tick(doc, util.add_subscription, client, 'measure')
elif device_cb_msg in [
'successfully_disconnected', 'no_control_allowed', 'esp_init',
'esp_interrupted'
]:
new_conn_status = False
if not stream_data_btn.active:
util.doc_next_tick(doc, disable_stream)
if new_conn_status is not None:
util.doc_next_tick(doc, util.conn_status_update, conn_status,
new_conn_status)