fix: terminate on SIGINT (Ctrl+C)

src/__main__.py

@@ -5,7 +5,7 @@ from . import cli
 
 logging.basicConfig(
     level=logging.INFO,
-    format="%(asctime)s %(name)-40s %(levelname)-8s %(message)s",
+    format="%(asctime)s %(name)-50s %(levelname)-8s %(message)s",
 )
 
 if __name__ == "__main__":

src/cli/__init__.py

@@ -5,10 +5,11 @@ import numpy as np
 import numpy.typing as npt
 import typer
 
-from . import config, visualise
-from .collection import ingest
-from .processing.aoa import AoA
-from .processing.preprocess import Preprocessor
+from .. import config, visualise
+from ..collection import ingest
+from ..processing.aoa import AoA
+from ..processing.preprocess import Preprocessor
+from . import file
 
 app = typer.Typer()
 logger = logging.getLogger(__name__)
@@ -23,7 +24,7 @@ def antennas() -> None:
     print the antenna identifier. When you are done, press Ctrl+C to stop the script and
     get the final order.
     """
-    from .utils import antenna_order
+    from ..utils import antenna_order
 
     antenna_order.main()
 
@@ -32,7 +33,8 @@ def antennas() -> None:
 def heatmap() -> None:
     preprocessor = Preprocessor()
     aoa = AoA()
-    webapp_queue: "mp.Queue[AoA]" = mp.Queue(config.SAMPLE_RATE)
+    manager = mp.Manager()
+    webapp_queue: "mp.Queue[AoA]" = manager.Queue(config.SAMPLE_RATE)
     # Start webapp in background process
     webapp = mp.Process(target=visualise.start, args=(webapp_queue,))
     webapp.start()

src/collection/ingest.py

@@ -6,7 +6,7 @@ import subprocess
 import threading
 import time
 from datetime import datetime
-from typing import Callable, NamedTuple, NoReturn
+from typing import Callable, NamedTuple
 
 import numpy as np
 import numpy.typing as npt
@@ -25,6 +25,7 @@ class FeitHost:
         self.logger = logging.getLogger(
             f"{__name__}.{self.__class__.__name__}-{self.host[0]}"
         )
+        self.active = True
         self.checker = threading.Thread(target=self.check_continuous)
         self.checker.start()
 
@@ -44,7 +45,7 @@ class FeitHost:
         self.server.send(self.command.encode())
         self.logger.info(f"Connected to {self.host}")
 
-    def check_continuous(self) -> NoReturn:
+    def check_continuous(self) -> None:
         """
         Repeatedly check if the FeitCSI service is running
 
@@ -53,7 +54,7 @@ class FeitHost:
         and logs continuously if the service is running.
         """
         last_status = False
-        while True:
+        while self.active:
             if not self.check_connection():
                 self.logger.error(f"FeitCSI is not running on {self.host[0]}")
                 last_status = False
@@ -62,6 +63,7 @@ class FeitHost:
                     self.connect()
                 last_status = True
             time.sleep(1)
+        self.logger.info("Stopping host checker")
 
 
 class FeitTransmitter(FeitHost):
@@ -86,10 +88,10 @@ class FeitReceiver(FeitHost):
         )
         super().__init__(host, command)
 
-    def listen(self, queue: "mp.Queue[CSI]") -> NoReturn:
+    def listen(self, queue: "mp.Queue[CSI]") -> None:
         prev_time = datetime.now()
         self.logger.info("Listening for CSI data")
-        while True:
+        while self.active:
             while not hasattr(self, "server"):
                 time.sleep(0.1)
             # This is the max size of a UDP packet. The size of the actual CSI
@@ -105,6 +107,7 @@ class FeitReceiver(FeitHost):
                 queue.put(csidata)
             except struct.error:
                 self.logger.error("Failed to parse CSI data")
+        self.logger.info("Stopping CSI receiver")
 
 
 class CSIProcessor:
@@ -117,6 +120,7 @@ class CSIProcessor:
         self.logger = logging.getLogger(f"{__name__}.{self.__class__.__name__}")
         self.last_processed = datetime.now()
         self.connections = receiver_connections
+        self.active = True
 
     def add_data(self, host: Host, data: CSI) -> None:
         if (
@@ -164,8 +168,9 @@ class CSIProcessor:
         self,
         callback: CSICallback | None = None,
         pre_merge_callback: Callable[[dict[Host, CSI]], None] | None = None,
-    ) -> NoReturn:
-        while True:
+    ) -> None:
+        try:
+            while self.active:
                 for ip, queue in self.connections.items():
                     while not queue.empty():
                         self.add_data(ip, queue.get())
@@ -174,6 +179,8 @@ class CSIProcessor:
                 else:
                     self.logger.debug("Not all data is ready")
                 time.sleep(0.0005)
+        except KeyboardInterrupt:
+            self.logger.info("Exiting CSI processing")
 
 
 class Receiver(NamedTuple):
@@ -191,7 +198,7 @@ def start_processing(
         for ip in config.RECEIVE_HOSTS
     ]
 
-    FeitTransmitter()
+    transmitter = FeitTransmitter()
 
     # Start injecting CSI frames
     processor = CSIProcessor({r.ip: r.queue for r in receivers})
@@ -208,6 +215,11 @@ def start_processing(
     )
     processing_thread.start()
     try:
-        processing_thread.join()
+        while True:
+            time.sleep(100)
     except KeyboardInterrupt:
+        for r in receivers:
+            r.receiver.active = False
+        transmitter.active = False
+        processor.active = False
         return