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4d90d29899
* src/timeout.c (cleanup): Send signals directly to the child in case it has started its own process group (like a cascaded timeout command would for example). * test/misc/timeout-group: Add a test case. * NEWS: Mention the fix.
76 lines
2.2 KiB
Bash
Executable File
76 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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# test program group handling
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# Copyright (C) 2011 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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print_ver_ timeout
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# construct a program group hierarchy as follows:
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# timeout-group - foreground group
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# group.sh - separate group
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# timeout.cmd - same group as group.sh
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#
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# We then send a SIGINT to the "separate group"
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# to simulate what happens when a Ctrl-C
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# is sent to the foreground group.
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setsid true || skip_ "setsid required to control groups"
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cat > timeout.cmd <<\EOF
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#!/bin/sh
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trap 'touch int.received; exit' INT
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touch timeout.running
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sleep $1
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EOF
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chmod a+x timeout.cmd
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cat > group.sh <<\EOF
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#!/bin/sh
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timeout --foreground 5 ./timeout.cmd 10&
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wait
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EOF
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chmod a+x group.sh
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# Start above script in its own group.
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# We could use timeout for this, but that assumes an implementation.
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setsid ./group.sh &
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until test -e timeout.running; do sleep .1; done
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# Simulate a Ctrl-C to the group to test timely exit
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# Note dash doesn't support signalling groups (a leading -)
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env kill -INT -- -$!
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wait
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test -e int.received || fail=1
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rm -f int.received timeout.running
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# Ensure cascaded timeouts work
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# or more generally, ensure we timeout
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# commands that create their own group
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# This didn't work before 8.13.
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# Note the first timeout must send a signal that
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# the second is handling for it to be propagated to the command.
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# SIGINT, SIGTERM, SIGALRM etc. are implicit.
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timeout -sALRM 2 timeout -sINT 10 ./timeout.cmd 5&
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until test -e timeout.running; do sleep .1; done
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kill -ALRM $!
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wait
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test -e int.received || fail=1
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Exit $fail
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