IQ.Pilot Prebuilt Release @ 27f668a

iqpilot/selfdrive/ui/lib/wifi_ssid.py

@@ -0,0 +1,55 @@
+import time
+import threading
+import subprocess
+
+# Shared, throttled current-Wi-Fi-SSID lookup for the status bars (home pill + onroad sidebar).
+# The SSID isn't in deviceState, so we shell out to NetworkManager on a background thread and cache
+# the result; the render thread only ever reads the cached string.
+
+_ssid = ""
+_last_fetch = 0.0
+_fetching = False
+_lock = threading.Lock()
+REFRESH_SECONDS = 10.0
+
+
+def _read_ssid() -> str:
+  try:
+    out = subprocess.run(["nmcli", "-t", "-f", "active,ssid", "dev", "wifi"],
+                         capture_output=True, text=True, timeout=4).stdout
+    for line in out.splitlines():
+      if line.startswith("yes:"):
+        name = line.split(":", 1)[1].strip()
+        if name:
+          return name
+  except Exception:
+    pass
+  try:
+    name = subprocess.run(["iwgetid", "-r"], capture_output=True, text=True, timeout=4).stdout.strip()
+    if name:
+      return name
+  except Exception:
+    pass
+  return ""
+
+
+def _fetch() -> None:
+  global _ssid, _last_fetch, _fetching
+  name = _read_ssid()
+  with _lock:
+    _ssid = name
+    _last_fetch = time.monotonic()
+    _fetching = False
+
+
+def current_ssid(on_wifi: bool) -> str:
+  """Return the connected SSID (or "" if unknown / not on Wi-Fi). Kicks a throttled background
+  refresh; never blocks the caller."""
+  global _fetching
+  if not on_wifi:
+    return ""
+  with _lock:
+    if not _fetching and time.monotonic() - _last_fetch > REFRESH_SECONDS:
+      _fetching = True
+      threading.Thread(target=_fetch, daemon=True).start()
+    return _ssid