FreeDATA/modem/service_manager.py

111 lines
No EOL
4.1 KiB
Python

import threading
import frame_dispatcher
import modem
import structlog
import audio
import ujson as json
import explorer
class SM:
def __init__(self, app):
self.log = structlog.get_logger("service")
self.modem = False
self.data_handler = False
self.app = app
self.config = self.app.config_manager.read()
self.modem_events = app.modem_events
self.modem_fft = app.modem_fft
self.enable_fft_stream = False
self.modem_service = app.modem_service
self.states = app.state_manager
runner_thread = threading.Thread(
target=self.runner, name="runner thread", daemon=True
)
runner_thread.start()
# optionally start explorer module
if self.config['STATION']['enable_explorer']:
explorer.explorer(self.app, self.config, self.states)
def runner(self):
while True:
cmd = self.modem_service.get()
if cmd in ['start'] and not self.modem:
self.log.info("------------------ FreeDATA ------------------")
self.log.info("------------------ MODEM ------------------")
self.start_modem()
elif cmd in ['stop'] and self.modem:
self.stop_modem()
# we need to wait a bit for avoiding a portaudio crash
threading.Event().wait(0.5)
elif cmd in ['restart']:
self.stop_modem()
# we need to wait a bit for avoiding a portaudio crash
threading.Event().wait(0.5)
if self.start_modem():
self.modem_events.put(json.dumps({"freedata": "modem-event", "event": "restart"}))
elif cmd in ['fft:true']:
# Tell modem it should put FFT data in the queue
self.modem.set_FFT_stream(True)
self.enable_fft_stream=True
elif cmd in ['fft:false']:
# Tell modem it should not put FFT data in the queue
self.modem.set_FFT_stream(False)
self.enable_fft_stream=False
else:
self.log.warning("[SVC] modem command processing failed", cmd=cmd, state=self.states.is_modem_running)
def start_modem(self):
# read config
self.config = self.app.config_manager.read()
if self.states.is_modem_running:
self.log.warning("modem already running")
return False
# test audio devices
audio_test = self.test_audio()
if False in audio_test or None in audio_test or self.states.is_modem_running:
self.log.warning("starting modem failed", input_test=audio_test[0], output_test=audio_test[1])
self.states.set("is_modem_running", False)
self.modem_events.put({"freedata": "modem-event", "event": "failed"})
return False
self.log.info("starting modem....")
self.modem = modem.RF(self.config, self.modem_events, self.modem_fft, self.modem_service, self.states)
self.frame_dispatcher = frame_dispatcher.DISPATCHER(self.config,
self.modem_events,
self.states,
self.modem.data_queue_received,
self.modem.modem_transmit_queue)
self.frame_dispatcher.start()
self.states.set("is_modem_running", True)
self.modem.set_FFT_stream(self.enable_fft_stream)
self.modem.start_modem()
return True
def stop_modem(self):
self.log.info("stopping modem....")
del self.modem
#del self.data_handler
self.modem = False
#self.data_handler = False
self.states.set("is_modem_running", False)
def test_audio(self):
audio_test = audio.test_audio_devices(self.config['AUDIO']['input_device'],
self.config['AUDIO']['output_device'])
self.log.info("tested audio devices", result=audio_test)
return audio_test