########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1982-2012 AT&T Intellectual Property #
# and is licensed under the #
# Eclipse Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# David Korn <dgk@research.att.com> #
# #
########################################################################
function err_exit
{
print -u2 -n "\t"
}
alias err_exit='err_exit $LINENO'
integer Errors=0
unset n s t
typeset -A SIG
for s in $(kill -l)
then err_exit "'kill -l $s' failed"
then err_exit "'kill -l $n' failed"
elif [[ $s == ?(SIG)$t ]]
then SIG[${s#SIG}]=1
then err_exit "'kill -l $t' failed"
elif [[ $m != $n ]]
then err_exit "'kill -l $s' => $n, 'kill -l $n' => $t, kill -l $t => $m -- expected $n"
fi
done
(
set --pipefail
{
g=false
while :
do print hello
done
) &
cop=$!
spy=$!
else err_exit "pipe with --pipefail PIPE trap hangs"
fi
wait
sleep 2 &
for ((i=0; i < 4; i++))
do sleep .75
print -n $i
# begin standalone SIGINT test generation
# shell trap tests
#
# tst control script that calls tst-1, must be run by ksh
# tst-1 calls tst-2
# tst-2 calls tst-3
# tst-3 defaults or handles and discards/propagates SIGINT
#
# initial -v option lists script entry and SIGINT delivery
#
# three test options
#
# d call next script directly, otherwise via $SHELL -c
# t trap, echo, and kill self on SIGINT, otherwise x or SIGINT default if no x
# x trap, echo on SIGINT, and tst-3 exit 0, tst-2 exit, otherwise SIGINT default
# z trap, echo on SIGINT, and tst-3 exit 0, tst-2 exit 0, otherwise SIGINT default
#
# Usage: tst [-v] [-options] shell-to-test ...
# "trap + sig" is an unadvertized extension for this test
# if run from nmake SIGINT is set to SIG_IGN
# this call sets it back to SIG_DFL
# semantics w.r.t. function scope must be worked out before
# making it public
trap + INT
set -o monitor
function gen
{
typeset o t x d
for x in - x z
do case $x in
[$1]) for t in - t
do case $t in
[$1]) for d in - d
do case $d in
[$1]) o="$o $x$t$d"
esac
done
esac
done
esac
done
echo '' $o
}
case $1 in
-v) v=v; shift ;;
-*v*) v=v ;;
*) v= ;;
esac
case $1 in
*' '*) o=$1; shift ;;
-*) o=$(gen $1); shift ;;
esac
case $# in
esac
for f in $o
do case $# in
1) ;;
*) echo ;;
esac
for sh
then case $# in
esac
wait
fi
done
done
case $# in
1) ;;
*) echo ;;
esac
!
case $1 in
*v*) echo 1-main ;;
esac
{
sleep 2
case $1 in
*v*) echo "SIGINT" ;;
esac
kill -s INT 0
} &
case $1 in
*t*) trap '
echo 1-intr
trap - INT
# omitting the self kill exposes shells that deliver
# the SIGINT trap but exit 0 for -xt
# kill -s INT $$
' INT
;;
esac
case $1 in
esac
sleep 2
!
case $1 in
*z*) trap '
echo 2-intr
exit 0
' INT
;;
*x*) trap '
echo 2-intr
exit
' INT
;;
*t*) trap '
echo 2-intr
trap - INT
kill -s INT $$
' INT
;;
esac
case $1 in
*v*) echo 2-main ;;
esac
case $1 in
esac
!
case $1 in
*[xz]*) trap '
sleep 2
echo 3-intr
exit 0
' INT
;;
*) trap '
sleep 2
echo 3-intr
trap - INT
kill -s INT $$
' INT
;;
esac
case $1 in
*v*) echo 3-main ;;
esac
sleep 5
printf '3-%04d\n' $?
!
# end standalone test generation
typeset -A expected
expected[---]="3-intr"
expected[--d]="3-intr"
expected[-t-]="3-intr 2-intr 1-intr 1-0258"
expected[x--]="3-intr 2-intr 1-0000"
expected[x-d]="3-intr 2-intr 1-0000"
expected[z--]="3-intr 2-intr 1-0000"
expected[z-d]="3-intr 2-intr 1-0000"
do [[ $out == ${expected[$ops]} ]] || err_exit "interrupt $ops test failed -- expected '${expected[$ops]}', got '$out'"
done < tst.got
then float s=$SECONDS
[[ $(LC_ALL=C $SHELL -c 'trap "print SIGUSR1 ; exit 0" USR1; (trap "" USR1 ; exec kill -USR1 $$ & sleep 5); print done') == SIGUSR1 ]] || err_exit 'subshell ignoring signal does not send signal to parent'
(( (SECONDS-s) < 4 )) && err_exit 'parent does not wait for child to complete before handling signal'
[[ $(LC_ALL=C $SHELL -c 'trap "print SIGUSR1 ; exit 0" USR1; (trap "exit" USR1 ; exec kill -USR1 $$ & sleep 5); print done') == SIGUSR1 ]] || err_exit 'subshell catching signal does not send signal to parent'
fi
if [[ $yes ]]
then {
$SHELL <<- EOF
foo() { return 0; }
trap foo EXIT
{ sleep 2; kill -$exp \$\$; sleep 3; kill -0 \$\$ && kill -KILL \$\$; } &
$yes |
while read yes
do (/bin/date; sleep .1)
done > /dev/null
EOF
} 2>> /dev/null
got=$(kill -l $?)
[[ $exp == $got ]] || err_exit "kill -$exp \$\$ failed, required termination by signal '$got'"
fi
done
fi
SECONDS=0
$SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; (sleep 5); print finished' > $tmp/sig
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
x=$(<$tmp/sig)
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
SECONDS=0
$SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; sleep 5; print finished' > $tmp/sig
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
x=$(<$tmp/sig)
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
SECONDS=0
{ $SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; (sleep 5); print finished' > $tmp/sig ;} 2> /dev/null
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
x=$(<$tmp/sig)
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
SECONDS=0
{ $SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; sleep 5; print finished' > $tmp/sig ;} 2> /dev/null
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
x=$(<$tmp/sig)
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
SECONDS=0
x=$($SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; (sleep 5); print finished')
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
SECONDS=0
x=$($SHELL 2> /dev/null -c 'sleep 2 && kill $$ & trap "print done; exit 3" EXIT; sleep 5; print finished')
e=$?
[[ $e == 3 ]] || err_exit "exit status failed -- expected 3, got $e"
[[ $x == done ]] || err_exit "output failed -- expected 'done', got '$x'"
(( SECONDS > 3.5 )) && err_exit "took $SECONDS seconds, expected around 2"
trap '' SIGBUS
[[ $($SHELL -c 'trap date SIGBUS; trap -p SIGBUS') ]] && err_exit 'SIGBUS should not have a trap'
trap -- - SIGBUS
{
x=$(
$SHELL <<- \++EOF
timeout()
{
trap 'trap - TERM; return' TERM
( sleep $1; kill -TERM $$ ) >/dev/null 2>&1 &
sleep 3
}
timeout 1
print ok
++EOF
)
} 2> /dev/null
[[ $x == ok ]] || err_exit 'return without arguments in trap not preserving exit status'
x=$(
$SHELL <<- \++EOF
set -o pipefail
foobar()
{
for ((i=0; i < 10000; i++))
do print abcdefghijklmnopqrstuvwxyz
done | head > /dev/null
}
foobar
print ok
++EOF
)
[[ $x == ok ]] || err_exit 'SIGPIPE exit status causes PIPE signal to be propogaged'
x=$(
$SHELL <<- \EOF
trap "print GNAW" URG
print 1
( sleep 1 ; kill -URG $$ ; sleep 1 ; print S1 ; )
print 2
EOF
)
then {
trap : RTMIN
for ((i=0 ; i < 3 ; i++))
do sleep 1
done &
wait
[[ $? == 0 ]] && err_exit 'wait interrupted by caught signal should have non-zero exit status'
{
for ((i=0 ; i < 3 ; i++))
do sleep 1
done &
wait
[[ $(kill -l $?) == RTMIN ]] || err_exit 'wait interrupted by signal not caught should exit with the value of that signal+256'
fi
function b
{
sleep 3
endb=1
}
function a
{
b
enda=1
}
a