Tvheadend

Hi,

I just modified the shutdown script as mentioned in the ACPI suspend wiki.
I've noticed the current shutdown script doesnt honour any running recordings or active viewing clients so i modified the script a bit.

Simply put this script is run after a recording has finished and it then checks for any other running recordings and checks for active clients by simply using a ping command. If there's no running recording and no active client(s) the scripts puts the TVHeadend server in suspend mode by issueing ACPI pm-suspend (check the wiki on how this works).
Sending a WOL or having an active ACPI timer entry awakes the server when needed.

#!/bin/bash
#
#
# modyfy if different location for tvheadend dvr/log path
cd ~hts/.hts/tvheadend/dvr/log

######################

start_date=0
stop_date=0
recording=0
pingcount=0

# wait for at least 60 seconds to let the calling recording expire
sleep 60

current_date=`date +%s`

for i in $( ls ); do
tmp_start=`cat $i | grep '"start":' | cut -f 2 -d " " | cut -f 1 -d ","`
tmp_stop=`cat $i | grep '"stop":' | cut -f 2 -d " " | cut -f 1 -d ","`

# check for any current recording
if [ $((tmp_stop)) -gt $((current_date)) -a $((tmp_start)) -lt $((current_date)) ]; then
 recording=1
fi
done

#if [ $((recording)) -ne 0 ]; then
# echo "Recording in progress" 
#fi

# check to see if there's an active client
pingcount=$(ping -c1 192.168.1.41 | grep 'received' | awk -F ',' '{print $2}' | awk '{ print $1}')
#echo "Pingcount is $pingcount" 

# do the final check, no pingcount and no recording means we can suspend
# 
if [ $((pingcount)) -eq 0 -a $((recording)) -eq 0 ]; then
 #echo "XBMC is NOT active and NO recording in progress, so going into SUSPEND" 
 sudo /usr/sbin/pm-suspend
fi