mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-04-20 10:51:48 +02:00
09fcf494a1
* tests/init.cfg: Introduce a retry_delay_() function to repeatedly call a test function that requires a delay. This delay can now be shorter for the common case on fast systems, but will double until a configurable limit it reached before failing on slower systems. * tests/dd/reblock: Use retry_delay_. * tests/misc/cat-buf: Likewise. * tests/misc/stdbuf: Likewise. * tests/tail-2/F-vs-rename: Likewise. * tests/tail-2/flush-initial: Likewise. * tests/tail-2/tail-n0f: Likewise. * tests/tail-2/wait: Likewise. * test/dd/misc: Comment that delay is needed to trigger failure.
60 lines
1.7 KiB
Bash
Executable File
60 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
|
|
# Make sure that `tail -n0 -f' and `tail -c0 -f' sleep
|
|
# rather than doing what amounted to a busy-wait.
|
|
|
|
# Copyright (C) 2003, 2006-2010 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/>.
|
|
|
|
# This bug was fixed for 5.0.91
|
|
# It skips the test if your system lacks a /proc/$pid/status
|
|
# file, or if its contents don't look right.
|
|
|
|
if test "$VERBOSE" = yes; then
|
|
set -x
|
|
tail --version
|
|
fi
|
|
|
|
. $srcdir/test-lib.sh
|
|
|
|
require_proc_pid_status_
|
|
|
|
touch empty || framework_failure
|
|
echo anything > nonempty || framework_failure
|
|
|
|
|
|
for inotify in ---disable-inotify ''; do
|
|
for file in empty nonempty; do
|
|
for c_or_n in c n; do
|
|
tail --sleep=4 -${c_or_n} 0 -f $inotify $file &
|
|
pid=$!
|
|
tail_sleeping()
|
|
{
|
|
local delay="$1"; sleep $delay
|
|
state=$(get_process_status_ $pid)
|
|
case $state in
|
|
S*) ;;
|
|
*) return 1;;
|
|
esac
|
|
}
|
|
# Wait up to 1.5s for tail to sleep
|
|
retry_delay_ tail_sleeping .1 4 ||
|
|
{ echo $0: process in unexpected state: $state >&2; fail=1; }
|
|
kill $pid
|
|
done
|
|
done
|
|
done
|
|
|
|
Exit $fail
|