diff options
Diffstat (limited to 'tests/tail-2/pid.sh')
-rwxr-xr-x | tests/tail-2/pid.sh | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tests/tail-2/pid.sh b/tests/tail-2/pid.sh new file mode 100755 index 0000000..13cd7c9 --- /dev/null +++ b/tests/tail-2/pid.sh @@ -0,0 +1,49 @@ +#!/bin/sh +# Test the --pid option of tail. + +# Copyright (C) 2003-2018 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 <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ tail +getlimits_ + +touch empty here || framework_failure_ + +# Terminate any background tail process +cleanup_() { kill $pid 2>/dev/null && wait $pid; } + +for mode in '' '---disable-inotify'; do + # Use tail itself to create a background process to monitor, + # which will auto exit when "here" is removed. + tail -f $mode here & pid=$! + + # Ensure that tail --pid=PID does not exit when PID is alive. + returns_ 124 timeout 1 tail -f -s.1 --pid=$pid $mode here || fail=1 + + cleanup_ + + # Ensure that tail --pid=PID exits with success status when PID is dead. + # Use an unlikely-to-be-live PID + timeout 10 tail -f -s.1 --pid=$PID_T_MAX $mode empty + ret=$? + test $ret = 124 && skip_ "pid $PID_T_MAX present or tail too slow" + test $ret = 0 || fail=1 + + # Ensure tail doesn't wait for data when PID is dead + returns_ 124 timeout 10 tail -f -s10 --pid=$PID_T_MAX $mode empty && fail=1 +done + +Exit $fail |