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#!/bin/sh
# test program group handling
# Copyright (C) 2011 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
print_ver_ timeout
# construct a program group hierarchy as follows:
# timeout-group - foreground group
# group.sh - separate group
# timeout.cmd - same group as group.sh
#
# We then send a SIGINT to the "separate group"
# to simulate what happens when a Ctrl-C
# is sent to the foreground group.
setsid true || skip_ "setsid required to control groups"
cat > timeout.cmd <<\EOF
#!/bin/sh
trap 'touch int.received; exit' INT
touch timeout.running
sleep $1
EOF
chmod a+x timeout.cmd
cat > group.sh <<\EOF
#!/bin/sh
timeout --foreground 5 ./timeout.cmd 10&
wait
EOF
chmod a+x group.sh
# Start above script in its own group.
# We could use timeout for this, but that assumes an implementation.
setsid ./group.sh &
until test -e timeout.running; do sleep .1; done
# Simulate a Ctrl-C to the group to test timely exit
# Note dash doesn't support signalling groups (a leading -)
env kill -INT -- -$!
wait
test -e int.received || fail=1
rm -f int.received timeout.running
# Ensure cascaded timeouts work
# or more generally, ensure we timeout
# commands that create their own group
# This didn't work before 8.13.
# Note the first timeout must send a signal that
# the second is handling for it to be propagated to the command.
# SIGINT, SIGTERM, SIGALRM etc. are implicit.
timeout -sALRM 2 timeout -sINT 10 ./timeout.cmd 5&
until test -e timeout.running; do sleep .1; done
kill -ALRM $!
wait
test -e int.received || fail=1
Exit $fail
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