2 # Test the --pid option of tail.
4 # Copyright (C) 2003, 2006-2009 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 if test "$VERBOSE" = yes; then
27 touch empty here || framework_failure
30 for inotify in ---disable-inotify ''; do
31 # Use tail itself to create a background process to monitor,
32 # which will auto exit when "here" is removed.
33 tail -f $inotify here &
36 # Ensure that tail --pid=PID does not exit when PID is alive.
37 timeout 1 tail -f -s.1 --pid=$bg_pid $inotify here
38 test $? = 124 || fail=1
40 # Cleanup background process
43 # Ensure that tail --pid=PID exits with success status when PID is dead.
44 # Use an unlikely-to-be-live PID
45 timeout 3 tail -f -s.1 --pid=$PID_T_MAX $inotify empty
47 test $ret = 124 && skip_test_ "pid $PID_T_MAX present or tail too slow"
48 test $ret = 0 || fail=1
50 # Ensure tail doesn't wait for data when PID is dead
51 timeout 3 tail -f -s10 --pid=$PID_T_MAX $inotify empty
52 test $? = 124 && fail=1