| 1 | #!/bin/bash
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| 2 |
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| 3 | usage () {
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| 4 | echo "Usage: $0 [-h] [-s] [-t <minutes_needed>]"
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| 5 | echo
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| 6 | echo "-h - Print this help/usage message and quit"
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| 7 | echo "-s - Run silently (default is verbose)"
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| 8 | echo "-t - Minutes of idle time needed (default is 20)"
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| 9 | echo "-v - Be more verbose for debugging"
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| 10 | echo
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| 11 | echo "Silent mode is recommended for use in cron jobs or scripts."
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| 12 | exit $1
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| 13 | }
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| 14 |
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| 15 | msg () { # A status reporting function
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| 16 | [ "$VERBOSE" -ne 0 ] && echo "$*"
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| 17 | }
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| 18 |
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| 19 | mysql_cmd () {
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| 20 | /usr/bin/mysql -u root mythconverg -sBe "$*"
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| 21 | }
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| 22 |
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| 23 | # Command line argument handling
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| 24 | VERBOSE=1
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| 25 | TIME_BEFORE=20
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| 26 | TIME_AFTER=5 # Only adjustable by editing here
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| 27 |
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| 28 | while getopts "hst:v" OPT ; do
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| 29 | case $OPT in
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| 30 | h) usage 0 ;;
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| 31 | s) VERBOSE=0 ;;
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| 32 | t) TIME_BEFORE=$OPTARG ;;
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| 33 | v) VERBOSE=2 ;;
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| 34 | *) usage 1 ;;
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| 35 | esac
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| 36 | done
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| 37 | # Check for extra cruft on the command line...
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| 38 | shift $(($OPTIND - 1))
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| 39 | [ -n "$*" ] && usage 1
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| 40 |
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| 41 | msg "Checking what MythTV is doing now or plans within $TIME_BEFORE minutes..."
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| 42 | msg
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| 43 |
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| 44 | /usr/bin/mythshutdown -s 1
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| 45 | BUSY="$?"
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| 46 | msg "mythshutdown returned $BUSY"
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| 47 | # Ignore certain non-zero flag values
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| 48 | BUSY=$(($BUSY & 0x2F))
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| 49 |
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| 50 | SCHEMALOCK=$(mysql_cmd "select count(*) from schemalock")
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| 51 | msg "schemalock $SCHEMALOCK"
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| 52 |
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| 53 | JOBS=$(mysql_cmd "select count(*) from jobqueue where status = 4")
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| 54 | msg "running jobs $JOBS"
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| 55 |
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| 56 | INUSE=$(mysql_cmd "select count(*) from inuseprograms")
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| 57 | msg "inuse programs $INUSE"
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| 58 |
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| 59 | POTENTIAL=$(mysql_cmd "select count(*) from recordmatch as rm, program as p
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| 60 | where rm.chanid = p.chanid and rm.starttime = p.starttime
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| 61 | and rm.starttime < now() + interval $TIME_BEFORE minute
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| 62 | and now() < p.endtime + interval $TIME_AFTER minute")
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| 63 | msg "potential recordings $POTENTIAL"
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| 64 | # See if any of the potential upcoming recordings are real.
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| 65 | # This is ugly, but only the backend knows what programs it really
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| 66 | # plans to record or ignore, so we can't just check the DB. :-(
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| 67 | if [ "$VERBOSE" -ge 2 ] ; then
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| 68 | mysql_cmd "select p.starttime, p.endtime, p.title, subtitle
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| 69 | from recordmatch as rm, program as p
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| 70 | where rm.chanid = p.chanid and rm.starttime = p.starttime
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| 71 | and rm.starttime < now() + interval $TIME_BEFORE minute
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| 72 | and now() < p.endtime + interval $TIME_AFTER minute
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| 73 | order by p.starttime, p.endtime"
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| 74 | fi
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| 75 | UPCOMING=$(/usr/bin/mythbackend --printsched 2>&1 |
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| 76 | /bin/awk -v potential=$POTENTIAL '
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| 77 | BEGIN {item=-1;real=0}
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| 78 | /--- print list start ---/,/--- print list end ---/ {
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| 79 | if (item>0 && item<=potential && substr($0,70,1) ~ "[0-9]") real+=1;
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| 80 | item += 1;
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| 81 | }
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| 82 | END {print real}
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| 83 | ')
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| 84 | msg "planned recordings $UPCOMING"
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| 85 | if [ "$VERBOSE" -ge 2 ] ; then
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| 86 | /usr/bin/mythbackend --printsched 2>&1 |
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| 87 | /bin/awk -v potential=$POTENTIAL '
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| 88 | BEGIN {item=-1}
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| 89 | /--- print list start ---/,/--- print list end ---/ {
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| 90 | if (item>0 && item<=potential) print $0;
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| 91 | item += 1;
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| 92 | }'
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| 93 | fi
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| 94 | activities=$(($BUSY + $SCHEMALOCK + $JOBS + $INUSE + $UPCOMING))
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| 95 | msg
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| 96 | if [ "$activities" -eq 0 ] ; then
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| 97 | msg "System is idle"
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| 98 | exit 0
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| 99 | else
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| 100 | msg "System is busy"
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| 101 | exit 1
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| 102 | fi
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