killchannel

#!/usr/bin/python
#
# This will kill a channel's ffmpeg (by name, as defined in channel.conf)
#
# Usage: killchannel <channel>
#
#
import os
import sys

#get basepath
basepath=os.path.dirname(os.path.realpath(__file__))+'/'


if len(sys.argv)!=2:
  print "Usage: killchannel <channel dir>"
  exit()

channelName=""
name = sys.argv[1]
channelName=name
channelPath=basepath+channelName+'/'
#^^^^the fuck was that all about?

ffmpegname="ffmpeg" #default

f = open(channelPath+'channel.conf')
lines=f.readlines()
f.close()
for b in lines:
	c=b.strip()
	line=c.split('=')
	if line[0].strip() == 'ffmpeg':
	  ffmpegname=line[1].strip()
#
#we have what we need.

#first kill any director and filler scripts.
#these must be killed before ffmpegs,
#or you may miss something.
if os.path.isfile(channelPath+'director.pid'):
  f = open(channelPath+'director.pid')
  tmp = f.readlines()
  f.close()
  dpid = tmp[0].strip()
  os.system('/bin/kill -9 '+dpid)
  #may as well delete that file, since it
  #is now invalid.
  os.remove(channelPath+'director.pid')

if os.path.isfile(channelPath+'fillshow.pid'):
  f = open(channelPath+'fillshow.pid')
  tmp = f.readlines()
  f.close()
  dpid = tmp[0].strip()
  os.system('/bin/kill -9 '+dpid)
  #may as well delete that file, since it
  #is now invalid.
  os.remove(channelPath+'fillshow.pid')

if os.path.isfile(channelPath+'cameraman.pid'):
  f = open(channelPath+'cameraman.pid')
  tmp = f.readlines()
  f.close()
  dpid = tmp[0].strip()
  os.system('/bin/kill -9 '+dpid)
  #may as well delete that file, since it
  #is now invalid.
  os.remove(channelPath+'cameraman.pid')


#hopefully, you've linked ffmpeg to other filenames
#and put that in channel.conf.  If you didn't, you
#should have.  Yes, there are more elegant ways to
#do this, but I'm over my head already, give me a 
#break.  Or don't.  I'm taking one anyway. Union.
#
#we're doing it the cheesy way.

cmd = '/bin/ps -A | grep '+ffmpegname+' > /run/shm/tempchk.'+channelName
os.system(cmd)
if os.path.isfile('/run/shm/tempchk.'+channelName):
  f = open('/run/shm/tempchk.'+channelName,'r')
  tmp=f.readlines()
  f.close()
  if len(tmp)>0:
    for s in tmp:
      l = s.strip()
      a = l.split(' ')
      os.system('/bin/kill -9 '+a[0])
    

#resiliant son of a bitch sometimes.  
#nuke it from orbit, to be sure.
os.system('/usr/bin/killall cameraman ; /usr/bin/killall '+ffmpegname)
#has to be done as fast as possible. It's tough.

#holy shit this thing, I swear.  If this doesn't work, you have to 
#type in the stuff in the above os.system call, with the filename
#for your ffmpeg (usually ffmpeg) at the second killall.
#it really is a ball buster, sometimes.