1 files changed, 97 insertions, 0 deletions
diff --git a/tests/misc/timeout-group.sh b/tests/misc/timeout-group.sh
new file mode 100755
index 000000000..7a08bb3a5
--- /dev/null
+++ b/tests/misc/timeout-group.sh
@@ -0,0 +1,97 @@
+#!/bin/sh
+# test program group handling
+
+# Copyright (C) 2011-2012 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
+trap '' INT
+timeout --foreground 25 ./timeout.cmd 20&
+wait
+EOF
+chmod a+x group.sh
+
+check_timeout_cmd_running()
+{
+  local delay="$1"
+  test -e timeout.running ||
+    { sleep $delay; return 1; }
+}
+
+
+# Start above script in its own group.
+# We could use timeout for this, but that assumes an implementation.
+setsid ./group.sh &
+# Wait 6.3s for timeout.cmd to start
+retry_delay_ check_timeout_cmd_running .1 6 || fail=1
+# Simulate a Ctrl-C to the group to test timely exit
+# Note dash doesn't support signalling groups (a leading -)
+env kill -INT -- -$!
+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.
+
+start=$(date +%s)
+
+# Note the first timeout must send a signal that
+# the second is handling for it to be propagated to the command.
+# SIGINT, SIGTERM, SIGALRM etc. are implicit.
+timeout -sALRM 30 timeout -sINT 25 ./timeout.cmd 20&
+pid=$!
+# Wait 6.3s for timeout.cmd to start
+retry_delay_ check_timeout_cmd_running .1 6 || fail=1
+kill -ALRM $pid # trigger the alarm of the first timeout command
+wait $pid
+ret=$?
+test $ret -eq 124 ||
+  skip_ "timeout returned $ret. SIGALRM not handled?"
+test -e int.received || fail=1
+
+end=$(date +%s)
+
+test $(expr $end - $start) -lt 20 ||
+  skip_ "timeout.cmd didn't receive a signal until after sleep?"
+
+Exit $fail