#!/bin/python3
'''
Created on Mar 30, 2014
author: tpweis
file name: k2_stop.py
'''
import os
import time
import subprocess
import sys
sys.path.insert(0,'/sl/lib')

from sleds_utilities import *

# This function returns SUCESS or FAILURE.  It K2Daemon is not running, that counts
# as success also.  IE, running this twice does not generate an failure return.

def main():
    "function main"

    slsetvars()
    process_name = "K2Daemon"

    cmd = "pkill"
    p1 = subprocess.Popen([cmd, "-f", process_name], stdout=subprocess.PIPE)
    # the kill might take a while.  Try for up to N seconds, then fail.
    rc = "FAILURE"
    for n in range(5):
        time.sleep(1)
        p2 = subprocess.Popen(["ps", "-C", process_name], stdout=subprocess.PIPE)
        data=p2.communicate()[0]
        data=data.decode()
        data=data.rstrip()
        if process_name in data:
            # The process is still alive. If still in range, try again
            continue
        # Not found.  Good result
        rc = "SUCCESS" 
        break
    
    print(rc)
    slscatlog('D',"k2_stop: " + cmd)

    exit()


if __name__ == '__main__':
    # execute only if run as a script
    main()