fix: ignore SIGINT during shutting down the pool

Author: georgeh0

python/cocoindex/subprocess_exec.py

@@ -45,7 +45,7 @@ def shutdown_pool_at_exit() -> None:
         if _pool is not None:
             try:
                 print("Before shutdown")
-                _pool.shutdown(cancel_futures=True)
+                _pool.shutdown(wait=True, cancel_futures=True)
                 print("After shutdown")
             except Exception as e:
                 _logger.error(

python/cocoindex/tests/conftest.py

@@ -1,15 +1,30 @@
 import pytest
 import typing
+import os
+import signal
 
 
 @pytest.fixture(scope="session", autouse=True)
 def _cocoindex_env_fixture() -> typing.Generator[None, None, None]:
     """Shutdown the subprocess pool at exit."""
+
     yield
+
     try:
         print("Shutdown the subprocess pool at exit in hook.")
         import cocoindex.subprocess_exec
 
-        cocoindex.subprocess_exec.shutdown_pool_at_exit()
-    except Exception:
+        if os.name == "nt":
+            original_sigint_handler = signal.getsignal(signal.SIGINT)
+            try:
+                signal.signal(signal.SIGINT, signal.SIG_IGN)
+                cocoindex.subprocess_exec.shutdown_pool_at_exit()
+            finally:
+                try:
+                    signal.signal(signal.SIGINT, original_sigint_handler)
+                except ValueError:  # noqa: BLE001
+                    pass
+        else:
+            cocoindex.subprocess_exec.shutdown_pool_at_exit()
+    except (ImportError, AttributeError):  # noqa: BLE001
         pass