Merge PR #219: fix: guard POSIX-only process functions for Windows compatibility

Authored by Farukest. Fixes #218.

tools/process_registry.py

@@ -32,6 +32,7 @@ Usage:
 import json
 import logging
 import os
+import platform
 import shlex
 import shutil
 import signal
@@ -39,6 +40,8 @@ import subprocess
 import threading
 import time
 import uuid
+
+_IS_WINDOWS = platform.system() == "Windows"
 from dataclasses import dataclass, field
 from pathlib import Path
 from typing import Any, Dict, List, Optional
@@ -199,7 +202,7 @@ class ProcessRegistry:
             stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT,
             stdin=subprocess.PIPE,
-            preexec_fn=os.setsid,
+            preexec_fn=None if _IS_WINDOWS else os.setsid,
         )
 
         session.process = proc
@@ -551,7 +554,10 @@ class ProcessRegistry:
             elif session.process:
                 # Local process -- kill the process group
                 try:
-                    os.killpg(os.getpgid(session.process.pid), signal.SIGTERM)
+                    if _IS_WINDOWS:
+                        session.process.terminate()
+                    else:
+                        os.killpg(os.getpgid(session.process.pid), signal.SIGTERM)
                 except (ProcessLookupError, PermissionError):
                     session.process.kill()
             elif session.env_ref and session.pid: