git.m6w6.name Git - m6w6/btr/blob - share/btr/btrd.sh

   1 #!/bin/bash
   2
   3 function btrd-start {
   4         btrd-cancel
   5         DATE=$(date +%Y%m%d%H%M%S)
   6         btr-setup
   7         btr-run &
   8         BTR_WORKER=$!
   9 }
  10 export -f btrd-start
  11
  12 function btrd-cancel {
  13         if btrd-worker-started
  14         then
  15                 kill $BTR_WORKER
  16                 wait $BTR_WORKER
  17         fi
  18         BTR_WORKER=0
  19 }
  20 export -f btrd-cancel
  21
  22 function btrd-stop {
  23         BTR_DAEMON=false
  24 }
  25 export -f btrd-stop
  26
  27 function btrd-ctime {
  28         stat -c %y "$1"
  29 }
  30 export -f btrd-ctime
  31
  32 function btrd-fsize {
  33         local bytes=$(stat -c %s "$1")
  34 }
  35 export -f btrd-fsize
  36
  37 function btrd-status {
  38         echo "BTR_BUILD='$BTR_BUILD'"
  39         echo "BTR_SERVER='$BTR_SERVER'"
  40         echo "BTR_PIDFILE='$BTR_PIDFILE'"
  41         echo "BTR_LOGFILE='$BTR_LOGFILE'"
  42         echo "BTR_COMFILE='$BTR_COMFILE'"
  43 }
  44 export -f btrd-status
  45
  46 function btrd-logrotate {
  47         local i=1
  48         local f="$BTR_LOGFILE"
  49
  50         if test -e "$f"
  51         then
  52                 while test -e "$f.$i"
  53                 do
  54                         i=$((i+1))
  55                 done
  56                 mv "$f" "$f.$i"
  57         fi
  58
  59 }
  60 export -f btrd-logrotate
  61
  62 function btrd-worker-started {
  63         test "$BTR_WORKER" -gt 1
  64 }
  65 export -f btrd-worker-started
  66
  67 function btrd-worker-running {
  68         kill -s 0 $BTR_WORKER
  69 }
  70 export -f btrd-worker-running
  71
  72 function btrd-worker-reap {
  73         wait $BTR_WORKER
  74         BTR_WORKER=0
  75 }
  76 export -f btrd-worker-reap
  77
  78 function btrd-worker-kill {
  79         kill $BTR_WORKER
  80 }
  81 export -f btrd-worker-kill
  82
  83 BTR_DAEMON=true
  84 BTR_WORKER=0
  85 BTR_SERVER=0
  86 BTR_PIDFILE="$BTR_RUNDIR/$BTR_BUILD.pid"
  87 BTR_LOGFILE="$BTR_RUNDIR/$BTR_BUILD.log"
  88 BTR_COMFILE="$BTR_RUNDIR/$BTR_BUILD.socket"
  89
  90 export BTR_DAEMON BTR_WORKER BTR_SERVER BTR_PIDFILE BTR_LOGFILE BTR_COMFILE
  91
  92 btrd-logrotate
  93
  94 exec >"$BTR_LOGFILE" 2>&1
  95 echo $$ >"$BTR_PIDFILE"
  96
  97 ncat -lkU -c btrd-status "$BTR_COMFILE" &
  98 BTR_SERVER=$!
  99
 100 trap btrd-start HUP
 101 trap btrd-cancel INT
 102 trap btrd-stop TERM
 103
 104 while $BTR_DAEMON
 105 do
 106         if btrd-worker-started && btrd-worker-running
 107         then
 108                 btrd-worker-reap
 109         else
 110                 kill -s STOP $$
 111         fi
 112 done
 113
 114 btrd-cancel
 115
 116 if test "$BTR_SERVER" -gt 1
 117 then
 118         kill $BTR_SERVER
 119         wait $BTR_SERVER
 120 fi
 121
 122 test -e "$BTR_PIDFILE" && rm "$BTR_PIDFILE"
 123 test -e "$BTR_LOGFILE" && rm "$BTR_LOGFILE"
 124 test -S "$BTR_COMFILE" && rm "$BTR_COMFILE"
 125
 126 # vim: noet