tests/coproc.tests

   1 : ${TMPDIR:=/tmp}
   2 TMPOUT=${TMPDIR}/coproc-wait-$BASHPID
   3
   4 coproc { echo a b c; sleep 2; }
   5
   6 case $COPROC_PID in
   7 [0-9]*) ;;
   8 *)      echo COPROC_PID not integer ;;
   9 esac
  10
  11 echo ${COPROC[@]}
  12
  13 read LINE <&${COPROC[0]}
  14 echo $LINE
  15
  16 wait $COPROC_PID
  17
  18 coproc REFLECT { cat - ; }
  19
  20 case $REFLECT_PID in
  21 [0-9]*) ;;
  22 *)      echo REFLECT_PID not integer ;;
  23 esac
  24
  25 echo ${REFLECT[@]}
  26
  27 echo flop >&${REFLECT[1]}
  28 read LINE <&${REFLECT[0]}
  29
  30 echo $LINE
  31
  32 exec 2>$TMPOUT          # catch stray job termination messages
  33 kill $REFLECT_PID
  34 wait $REFLECT_PID >$TMPOUT 2>&1 || echo "coproc.tests: REFLECT: status $?"
  35 grep -q 'Terminated.*coproc.*REFLECT' < $TMPOUT || {
  36         echo "coproc.tests: wait for REFLECT failed" >&2
  37 }
  38 rm -f $TMPOUT
  39 exec 2>&1
  40
  41 coproc xcase -n -u
  42
  43 case $COPROC_PID in
  44 [0-9]*) ;;
  45 *)      echo COPROC_PID not integer ;;
  46 esac
  47
  48 echo ${COPROC[@]}
  49
  50 echo foo >&${COPROC[1]}
  51 read <&${COPROC[0]}
  52
  53 echo $REPLY
  54 echo ${COPROC[@]}
  55
  56 cat /etc/passwd | grep root | awk -F: '{print $1;}' | sed 1q
  57
  58 exec 4<&${COPROC[0]}-
  59 exec >&${COPROC[1]}-
  60
  61 echo ${COPROC[@]}
  62
  63 read foo <&4
  64 echo $foo >&2
  65
  66 exit 0