Small things because fuck sd cards

orchestrateur/sensors/lock.py

@@ -1,5 +1,31 @@
 import threading
+from contextlib import contextmanager
+
 # Dedicated lock for I2C bus access (used by GrovePi sensors)
 grove_lock = threading.Lock()
 # Dedicated lock for UART/Serial port access
-serial_lock = threading.Lock()
+serial_lock = threading.Lock()
+
+@contextmanager
+def safe_grove_access(timeout=1.0):
+    """
+    Safely acquire the Grove I2C lock with a timeout.
+    Yields True if lock acquired, False otherwise.
+    Guarantees lock release only when successfully acquired.
+    """
+    acquired = grove_lock.acquire(timeout=timeout)
+    try:
+        yield acquired
+    finally:
+        if acquired:
+            grove_lock.release()
+
+@contextmanager
+def safe_serial_access(timeout=1.0):
+    """Safely acquire the UART/Serial lock with a timeout."""
+    acquired = serial_lock.acquire(timeout=timeout)
+    try:
+        yield acquired
+    finally:
+        if acquired:
+            serial_lock.release()