LAS/status.py

#!/usr/bin/env python3.9
import os
import signal

PRO_PATH = "/platform/LAS/"
PIDFILE = PRO_PATH + "LAS.pid"

def is_running(pid):
    try:
        os.kill(pid, 0)
        return True
    except OSError:
        return False

def status():
    if not os.path.exists(PIDFILE):
        print("LAS is NOT running (no PID file).")
        return

    with open(PIDFILE, "r") as f:
        pid = int(f.read())

    if is_running(pid):
        print(f"LAS is running with PID {pid}")
    else:
        print(f"LAS is NOT running (PID file found but process is gone).")

if __name__ == "__main__":
    status()