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add frame logging and extract entry point to main.py

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- msg/frame_logger.py: MsgListener that writes raw byte stream per
  source to timestamped log files (<YYYY_MM_DD_HH_MM_SS_source>.log)
- main.py: entry point extracted from network_backend.py; adds
  --log-dir argument (default ./log) and wires FrameLogger per transceiver
- network_backend.py: now contains only the NetworkBackend class
- .gitignore: exclude log/ directory

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
jens
2026-05-25 11:12:15 +02:00
co-authored by Claude Sonnet 4.6
parent a920802cce
commit c5ec65f2d6
4 changed files with 160 additions and 117 deletions
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network_backend.py
+1 -117
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@@ -1,7 +1,5 @@
import socket
import selectors
import time
import signal
from threading import Thread
from queue import Queue
@@ -10,15 +8,6 @@ from transceiver import Transceiver, ATransceiver
from a_backend import ABackend
from nmea.packetizer import NmeaPacketizer
from nmea.messages import Gll, Gsa, Gsv, Gga, Rmc
from ubx.ubx import frame_create
from ubx.msg_types import *
from ubx.packetizer import UbxPacketizer
from ubx.messages import Sig, Sat, RawX, UbxMsg
from ubx.listener import UbxListener
class NetworkBackend(ABackend):
def __init__(self, servers: list[dict]):
@@ -98,7 +87,6 @@ class NetworkBackend(ABackend):
name = descr['name']
sock = self.find_by_name(name)
if mask & selectors.EVENT_READ:
timestamp = time.time()
data = key.fileobj.recv(64)
sock['xcvr'].on_recv(MsgContainer(data, sock['xcvr']))
if mask & selectors.EVENT_WRITE:
@@ -111,108 +99,4 @@ class NetworkBackend(ABackend):
except KeyboardInterrupt:
print("Caught keyboard interrupt, exiting")
finally:
self.sel.close()
def handler(signum, frame, be: NetworkBackend):
sig_name = signal.Signals(signum).name
print(f'Signal handler called with signal {sig_name} ({signum})')
be.stop()
be.disconnect()
if __name__ == "__main__":
server_list = [
{'name': " neo-f9p", 'host': "192.168.22.93", 'port': 8721},
{'name': "zed-x20p", 'host': "192.168.22.93", 'port': 8731}
]
transceiver = {}
# TCPIP multi source receiver
mc = NetworkBackend(server_list)
# Set the signal handler
signal.signal(signal.SIGINT, lambda signum, frame: handler(signum, frame, mc))
for grm in [" neo-f9p", "zed-x20p"]:
nmea_rx_list = [
Gll(grm, 'GN'),
Gsa(grm, 'GN'),
Gsv(grm, 'GP'),
Gga(grm, 'GP'),
Rmc(grm, 'GN'),
Gga(grm, 'GN'),
]
ubx_rx_list = [
UbxListener(Sig()),
UbxListener(Sat()),
UbxListener(RawX()),
UbxListener(UbxMsg(UBX_CLASS_ACK, UBX_ID_ACK_ACK)),
UbxListener(UbxMsg(UBX_CLASS_ACK, UBX_ID_ACK_NACK)),
]
# Topology
# Receiver-0.0 \
# Receiver-0.1 <- Packetizer-0 <- Transceiver-0 \
# / \
# Send-0->/ \
# + Backend
# Send-1->\ /
# \ /
# Receiver-1.0 <- Packetizer-1 <- Transceiver-1 /
# Receiver-1.1 /
# Create transceiver
transceiver[grm] = Transceiver(grm)
mc.register_xcvr(transceiver[grm])
# Create NMEA-Packetizer
nmea_packetizer = NmeaPacketizer()
ubx_packetizer = UbxPacketizer()
# Register NMEA-Packetizer to transceiver
transceiver[grm].register_listener(nmea_packetizer)
transceiver[grm].register_listener(ubx_packetizer)
# Register Receiver to NMEA-Packetizer
for rx in nmea_rx_list:
nmea_packetizer.register_listener(rx)
# Register Receiver to UBX-Packetizer
for rx in ubx_rx_list:
ubx_packetizer.register_listener(rx)
# Connect all sources
mc.connect()
# Start thread
mc.start()
while True:
try:
for grm in [" neo-f9p", "zed-x20p"]:
# Poll UBX-NAV-CLOCK (0x01 0x22)
frame = frame_create(UBX_CLASS_NAV, UBX_ID_CLOCK)
transceiver[grm].send(frame)
# Poll UBX-NAV-SIG (0x01 0x43)
frame = frame_create(UBX_CLASS_NAV, UBX_ID_NAV_SIG)
transceiver[grm].send(frame)
# Poll UBX-NAV-SAT (0x01 0x35)
frame = frame_create(UBX_CLASS_NAV, UBX_ID_NAV_SAT)
transceiver[grm].send(frame)
# Poll UBX-RXM-RAWX (0x02 0x15)
frame = frame_create(UBX_CLASS_RXM, UBX_ID_RXM_RAW)
transceiver[grm].send(frame)
except ValueError:
break
time.sleep(1)
# Stop thread
mc.stop()
# code never reached
mc.disconnect()
self.sel.close()