FreeDATA/modem/state_manager.py

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import time
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import ujson as json
import threading
import numpy as np
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class StateManager:
def __init__(self, statequeue):
# state related settings
self.statequeue = statequeue
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self.newstate = None
self.last = time.time()
# modem related states
# not every state is needed to publish, yet
# TODO can we reduce them?
self.channel_busy = False
self.channel_busy_slot = [False, False, False, False, False]
self.is_codec2_traffic = False
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self.is_modem_running = False
self.is_modem_busy = False
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self.is_beacon_running = False
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self.is_arq_state = False
self.is_arq_session = False
# If true, any wait() call is blocking
self.transmitting_event = threading.Event()
self.setTransmitting(False)
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self.audio_dbfs = 0
self.dxcallsign: bytes = b"ZZ9YY-0"
self.dxgrid: bytes = b"------"
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self.heard_stations = [] # TODO remove it... heard stations list == deprecated
self.activities_list = {}
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self.arq_iss_sessions = {}
self.arq_irs_sessions = {}
self.arq_session_state = 'disconnected'
self.arq_speed_level = 0
self.arq_total_bytes = 0
self.arq_bits_per_second = 0
self.arq_bytes_per_minute = 0
self.arq_transmission_percent = 0
self.arq_compression_factor = 0
self.arq_speed_list = []
self.arq_seconds_until_timeout = 0
self.mesh_routing_table = []
self.radio_frequency = 0
self.radio_mode = None
self.radio_bandwidth = 0
self.radio_rf_power = 0
self.radio_strength = 0
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# Set rig control status regardless or rig control method
self.radio_status = False
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def sendState (self):
currentState = self.get_state_event(False)
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self.statequeue.put(currentState)
return currentState
def sendStateUpdate (self):
self.statequeue.put(self.newstate)
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def set(self, key, value):
setattr(self, key, value)
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#print(f"State ==> Setting {key} to value {value}")
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# only process data if changed
new_state = self.get_state_event(True)
if new_state != self.newstate:
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self.newstate = new_state
self.sendStateUpdate()
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def set_channel_slot_busy(self, array):
for i in range(0,len(array),1):
if not array[i] == self.channel_busy_slot[i]:
self.channel_busy_slot = array
self.newstate = self.get_state_event(True)
self.sendStateUpdate()
continue
def get_state_event(self, isChangedState):
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msgtype = "state-change"
if (not isChangedState):
msgtype = "state"
return {
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"freedata-message": msgtype,
"channel_busy": self.channel_busy,
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"is_codec2_traffic": self.is_codec2_traffic,
"is_modem_running": self.is_modem_running,
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"is_beacon_running": self.is_beacon_running,
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"radio_status": self.radio_status,
"radio_frequency": self.radio_frequency,
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"radio_mode": self.radio_mode,
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"channel_busy_slot": self.channel_busy_slot,
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"audio_dbfs": self.audio_dbfs,
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"activities": self.activities_list,
}
# .wait() blocks until the event is set
def isTransmitting(self):
return not self.transmitting_event.is_set()
# .wait() blocks until the event is set
def setTransmitting(self, transmitting: bool):
if transmitting:
self.transmitting_event.clear()
else:
self.transmitting_event.set()
def waitForTransmission(self):
self.transmitting_event.wait()
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def register_arq_iss_session(self, session):
if session.id in self.arq_iss_sessions:
raise RuntimeError(f"ARQ ISS Session '{session.id}' already exists!")
self.arq_iss_sessions[session.id] = session
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def register_arq_irs_session(self, session):
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if session.id in self.arq_irs_sessions:
raise RuntimeError(f"ARQ IRS Session '{session.id}' already exists!")
self.arq_irs_sessions[session.id] = session
def get_arq_iss_session(self, id):
if id not in self.arq_iss_sessions:
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#raise RuntimeError(f"ARQ ISS Session '{id}' not found!")
# DJ2LS: WIP We need to find a better way of handling this
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pass
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return self.arq_iss_sessions[id]
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def get_arq_irs_session(self, id):
if id not in self.arq_irs_sessions:
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#raise RuntimeError(f"ARQ IRS Session '{id}' not found!")
# DJ2LS: WIP We need to find a better way of handling this
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pass
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return self.arq_irs_sessions[id]
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def remove_arq_iss_session(self, id):
if id not in self.arq_iss_sessions:
raise RuntimeError(f"ARQ ISS Session '{id}' not found!")
del self.arq_iss_sessions[id]
def remove_arq_irs_session(self, id):
if id not in self.arq_irs_sessions:
raise RuntimeError(f"ARQ ISS Session '{id}' not found!")
del self.arq_irs_sessions[id]
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def add_activity(self, activity_data):
# Generate a random 8-byte string as hex
activity_id = np.random.bytes(8).hex()
# if timestamp not provided, add it here
if 'timestamp' not in activity_data:
activity_data['timestamp'] = int(time.time())
# if frequency not provided, add it here
if 'frequency' not in activity_data:
activity_data['frequency'] = self.radio_frequency
self.activities_list[activity_id] = activity_data
self.sendStateUpdate()