#!/usr/bin/python

import os
from glob import glob
from syslog import syslog
import signal

pid = os.getpid()
# syslog( "%d: Starting" % pid )

rundir = "/var/run/mustang/"

# Check for pid file
os.chdir( rundir )
filelist = glob( 'mustang_*' )

if len( filelist ) == 1:
    lockfile = filelist[0]
    oldpid = lockfile.split( '_' )[1]

    # See if the process still exists
    # syslog( "%d: Check for path /proc/%s" % (pid, oldpid) )
    if os.path.exists( "/proc/%s" % oldpid ):
        # syslog( "%d: Sending sigint to pid %s" % (pid, oldpid) )
        try:
            os.kill( int(oldpid), signal.SIGINT ) 
        except Exception as e:
            syslog( "%d: Signal failed: %s" % (pid, e) )
            pass
        else:
            # syslog( "%d: Signal sent" % pid )
            pass
else:
    syslog( "%d: /var/run/mustang is not properly setup" % pid )